WO1996004751A1 - Image pickup device and image pickup system - Google Patents
Image pickup device and image pickup system Download PDFInfo
- Publication number
- WO1996004751A1 WO1996004751A1 PCT/JP1995/001512 JP9501512W WO9604751A1 WO 1996004751 A1 WO1996004751 A1 WO 1996004751A1 JP 9501512 W JP9501512 W JP 9501512W WO 9604751 A1 WO9604751 A1 WO 9604751A1
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- signal
- vertical
- supplied
- synchronization signal
- external
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
- H04N25/73—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors using interline transfer [IT]
Definitions
- the present invention relates to a camera mainly used for factory automation (FA), for example, for imaging an object moving at high speed.
- the present invention relates to an imaging system suitable for use in a device or the like.
- the vertical blanking signal shown in Fig. 1 (a) is output during the vertical blanking period VBLK when it is at one level.
- the charge stored in each pixel of the light conversion unit of the CCD image sensor is read to the vertical transfer unit by the read signal shown in (b).
- the charge accumulation time of the CCD image sensor is the reset signal shown in Fig. 1 (c).
- the reset signal When the reset signal is supplied, the CCD image sensor sweeps out the electric charge accumulated in the pixel to an overflow lane. It is getting angry.
- the imaging device can change the shutter speed in accordance with the movement of a subject, so that the imaging device is particularly fast moving. This is advantageous for capturing images in the body.
- an imaging device that is mainly used for FA and captures an image of a moving object.
- This imaging apparatus has, for example, a configuration as shown in FIG. 2, and when an object 201 moving on a moving path 200 moves in front of the imaging unit 202. This is detected by the position detecting section 203, and a low-level trigger signal shown at time til in FIG. 3A is supplied to the shutter signal generating circuit 204.
- the shutter signal generating circuit 204 controls the shutter control signal as shown at time til in FIG. 3 (b) by CCD control. Supply to circuit 205.
- the CCD control circuit 205 overflows the charge accumulated in the photoelectric conversion unit of the CCD image sensor 206 while the shutter control signal is supplied. Reset for sweeping to load lane Supply the signal. As a result, while the reset signal is being supplied, no electric charge is accumulated in each element of the photoelectric conversion unit of the CCD image sensor 206. However, when the above trigger signal is supplied, the reset signal supplied to the CCD image sensor 206 is stopped. As a result, the accumulation of effective charges is started in each pixel of the light-to-light conversion unit of the CCD image sensor 206.
- the CCD control circuit 205 receives the vertical synchronization signal from time t11 to time t12 in FIG.
- the horizontal synchronization signal shown in (d) is supplied.
- the above-mentioned shutter control signal is supplied, the above-mentioned CCD control circuit 205 receives the control signal shown in FIG.
- the shutter control signal is supplied to the CCD image sensor 206 so that the force
- the imaging light irradiated via the imaging lens 208 is supplied to the CCD image sensor 206.
- the corresponding charge is accumulated in the CCD image sensor 206, and the time from time t11 to time t13 is the pack accumulation time.
- FIG. 3 (f) shows the vertical blanking period VBLK.
- the electric charge read from the CCD image sensor 206 is supplied to the signal processing circuit 209 as an imaging signal.
- the signal processing circuit 209 performs signal processing such as adding a synchronization signal to the imaging signal, This is output as a video signal via the output terminal 210.
- the video signal output via the output terminal 210 is supplied to, for example, a monitor.
- the imaging device E for imaging such a moving object is mainly used for FA, the object 201 shown in FIG. 2 is moved at a high speed. There is a case where it is desired to take an image by a high-speed shutter such as 1000 seconds.
- the clock is counted several hundred times.
- the read signal is supplied to the CCD image sensor by the scanning. That is, the output timing of the read signal is fixed and set in advance based on the pixel arrangement of the CCD image sensor.
- the charge storage time of the imaging device cannot be reduced to less than the time from the falling time of the vertical synchronizing signal to the time at which the read signal is output. For this reason, the conventional imaging apparatus could not perform imaging by a high-speed shutter such as 1/1000 second.
- the accumulation of effective charges is started in response to the trigger signal supplied from the position detection unit 203. That is, the above-described imaging device operates in response to the evening of the trigger signal supplied from the position detection 203.
- image processing equipment It operates based on the synchronization signal. Therefore, for example, when synthesizing video signals from a plurality of imaging devices, video recording / reproducing devices, etc., it is necessary to supply a video signal synchronized with a reference synchronization signal to an image processing device. is there.
- this imaging device when a trigger signal is supplied at an arbitrary timing, for example, as shown in FIG. 4 (a), after a predetermined charge accumulation time, that is, an exposure time,
- the read signal shown in FIG. 4 (b) is supplied to the CCD image sensor, and the electric charge accumulated in each pixel of the photoelectric conversion unit is read out to the vertical transfer unit, and at the same time, the vertical synchronization signal V-SYNC is generated.
- the charge read out to the vertical transfer unit in synchronization with the generated vertical synchronization signal V—SYNC is output as an imaging signal through the horizontal transfer unit. It is getting angry.
- this imaging device generates a vertical synchronization signal V-SYNC having a fixed period as shown in FIG. 5 (c), for example, and generates a trigger signal shown in FIG. 5 (a).
- the readout signal shown in Fig. 5 (b) is supplied to the CCD image sensor, and the charge accumulated in each pixel of the photoelectric conversion unit is supplied to the vertical transfer unit.
- a vertical synchronization signal V-SYNC is generated.
- the image signal shown in Fig. 6 (b) is generated at random intervals.
- the video signal is output, so that the vertical synchronization signal V_SYNC cannot be output at a constant cycle.
- Another object of the present invention is to provide an imaging device which can control the timing of outputting a video signal obtained by imaging and can easily synchronize with an external device. To provide.
- Another object of the present invention is to provide an imaging system capable of outputting a video signal from an imaging device in synchronization with a synchronization signal from an image capturing device.
- Still another object of the present invention is to provide a control device and a control system for outputting a video signal from an imaging device in synchronization with a synchronization signal from an image capturing device.
- An imaging device includes a light receiving unit that generates a load corresponding to the amount of incident light, a vertical transfer unit that transfers charges generated in the light receiving unit, A charge transfer section that outputs charges transferred via the transfer section; and a charge sweeping section, wherein the charge accumulated in the light receiving section in response to an electronic shutter control signal is removed by the charge sweeping section.
- An interline transfer type solid-state image pickup device having an electronic shutter function of sweeping away to a discarded portion; and a trigger.
- Read signal generating means for generating a read signal for reading charges as effective charges to the vertical transfer unit; and at least the read signal is supplied after the trigger signal is supplied.
- a charge transfer stopping means for stopping the vertical transfer of charges in the vertical transfer unit until a timing when the signal is generated; and a charge stopping means for timing based on an external synchronization signal.
- the charge transfer that outputs the effective charge through the horizontal transfer unit by releasing the stop of the vertical transfer of the effective charge in the vertical transfer unit and starting the vertical transfer of the effective charge.
- Starting means and It is characterized by:
- the charge transfer start means may be configured such that the field discrimination signal included in the external synchronization signal is one of an odd field and an even field. At the timing indicating the start of the field, the suspension of the vertical transfer of the effective charge in the vertical transfer unit is released, and the vertical transfer of the effective charge is started.
- the imaging device includes an output request signal generation unit that generates an output request signal at a predetermined timing based on the external synchronization signal after the trigger signal is supplied.
- the charge transfer start means includes a step of, after the output request signal is supplied, supplying a field discrimination signal included in the external synchronization signal to an odd field and an even field. At the timing indicating the start of one field of the field, the suspension of the vertical transfer of the effective charge in the vertical transfer section is released, and the vertical transfer of the effective charge is started. This is the feature.
- the imaging apparatus may be configured such that the trigger signal is supplied.
- Output request signal generating means for generating an output request signal at a predetermined timing based on the external synchronization signal, and the charge transfer start means receives the output request signal. Then, at the timing when the external synchronization signal indicates the start of the first field, the suspension of the vertical transfer of the effective load in the vertical transfer section is released, and the vertical transfer of the effective charge is performed. The feature is to start the transfer.
- the imaging apparatus E includes a light receiving unit that generates an electric charge according to the amount of incident light, a vertical transfer unit that transfers the compress generated by the light receiving unit, A horizontal transfer unit for outputting the transferred electric charge, and a charge sweeping unit, wherein the electric charge accumulated in the light receiving unit is swept away by the charge sweeping unit in response to an electronic shutter control signal.
- An inter-line transfer type solid-state imaging device having a shutter function, a first vertical synchronizing signal and a first horizontal synchronizing signal to be supplied.
- Drive signal generating means for generating a vertical transfer signal for vertically transferring a load, a trigger signal input terminal to which a trigger signal for designating imaging of a subject is supplied from the outside, and the above-described trigger signal Is supplied, an electronic shutter signal generating means for generating the electronic shutter control signal, and a signal based on the charge read from the horizontal transfer unit of the solid-state imaging device. Signal processing based on the internal synchronization signal.
- a video signal generating means for generating a video signal; and a video signal output terminal for outputting the video signal generated by the video signal generating means.
- An imaging device fi includes a light receiving unit that generates an S load according to the amount of incident light, a vertical transfer unit that transfers charges generated by the light receiving unit, A horizontal transfer unit that outputs the load transferred by the transfer unit; and a load sweeping unit.
- the load sweeping unit stores the load accumulated in the light receiving unit in response to an electronic shutter control signal.
- a drive signal generating means for generating a vertical transfer signal for vertically transferring electric charges, a trigger signal input terminal to which a trigger signal for designating imaging of a subject is supplied from the outside, and the above trigger signal When There supplied, it generates the electronic-shirts motor control signal
- An electronic shutter signal generating means for performing a timing based on the internal synchronization signal in response to a signal based on the electric charge ejected from the horizontal transfer unit of the solid-state imaging device. It is characterized by comprising a video signal generating means for performing a signal processing to generate a video signal, and a video signal output terminal for outputting the video signal generated by the video signal generating means.
- An imaging device includes a light receiving unit that generates a load corresponding to the amount of incident light, a vertical transfer unit that transfers charges generated in the light receiving unit, A horizontal transfer unit for outputting the transferred electric charge, and a charge sweeping unit, and sweeps the load accumulated in the light receiving unit to the load sweeping unit in response to an electronic shutter control signal.
- An interfer- ence transfer type solid-state imaging device having an electronic shutter function to be discarded, and a first synchronization to which a first vertical synchronization signal and a first horizontal synchronization signal are supplied.
- an internal synchronization signal generating means for generating an internal vertical synchronization signal and an internal horizontal synchronization signal based on the first vertical synchronization signal and the first horizontal synchronization signal, and a second vertical synchronization signal and a second A second synchronization signal input terminal to which the second horizontal synchronization signal is supplied;
- Selecting means for selectively outputting the first vertical synchronizing signal and the first horizontal synchronizing signal, or the second vertical synchronizing signal and the second horizontal synchronizing signal, via the selecting means Based on the selectively output first vertical synchronizing signal and the first horizontal synchronizing signal, or the second vertical synchronizing signal and the second horizontal synchronizing signal,
- Drive signal generating means for generating a read signal for transferring the electric charge to the vertical transfer unit and a vertical transfer signal for vertically transferring the electric charge read to the vertical transfer unit; and designating imaging of a subject.
- an electronic shutter signal generating means for generating a child shutter control signal; and an internal shutter signal generating means for receiving a signal based on the electric charge read from the horizontal transfer section of the solid-state imaging device.
- a video signal generating means for performing a signal processing at a timing based on the synchronization signal to generate a video signal; and a video signal output terminal for outputting the video signal generated by the video signal generating means.
- An imaging system includes a light receiving unit that generates a charge corresponding to the amount of incident light, a vertical transfer unit that transfers the charge generated by the light receiving unit, and a vertical transfer unit that transfers the charge.
- a horizontal transfer unit for outputting the transferred electric charge and a charge sweeping unit, and sweeps the electric charge accumulated in the light receiving unit to the charge sweeping unit in response to an electronic shutter control signal.
- an inter-line transfer-type solid-state image sensor with a function to capture the subject, an external synchronization signal generating means for generating an external vertical synchronization signal and an external horizontal synchronization signal, and imaging of the subject
- an electronic shutter control signal for generating an electronic shutter control signal for sweeping the electric charge accumulated in the light receiving section to the electric charge sweeping section is generated.
- Means, and read signal generation means for generating a read signal for transferring the electric charge stored in the light receiving section to the vertical transfer section after a predetermined time from the supply of the trigger signal.
- a vertical transfer signal generating means for generating a vertical transfer signal for vertically transferring the S-load read to the direct transfer unit, and a video signal based on the charge output from the solid-state imaging device for the external vertical synchronization Storage means for storing at a timing based on a signal.
- the modulation synchronization signal generation means may include a field included in the external vertical synchronization signal from a timing after a predetermined time from the supply of the trigger signal.
- the external horizontal level signal is used as the modulated horizontal synchronization signal until the timing that indicates the start of one of the odd field and the even field. Generates a signal with a higher frequency than the synchronization signal.
- the imaging system further includes output request signal generation means for generating an output request signal at a predetermined timing based on the external vertical synchronization signal after the trigger signal is supplied.
- the modulated horizontal synchronizing signal generation means supplies the output request signal at a timing after a predetermined time from the supply of the trigger signal, and further supplies the external vertical signal.
- the field discrimination signal included in the synchronization signal is as described above until the timing indicating the start of one of the odd field and the even field. It is characterized in that a signal having a higher frequency than the external horizontal synchronizing signal is generated as a modulated horizontal synchronizing signal.
- the imaging system further includes an output request signal generating means for generating an output request signal at a predetermined timing based on the external vertical synchronization signal after the trigger signal is supplied.
- the modulated horizontal synchronizing signal generating means supplies the output request signal at a timing after a predetermined time after the trigger signal is supplied, and further supplies the external request signal. Until the vertical sync signal indicates the start of the first field, A signal having a frequency higher than that of the external horizontal synchronization signal is generated as the modulated horizontal synchronization signal.
- the present invention provides a light receiving unit that generates an electric charge corresponding to an incident light beam, a vertical transfer unit to which the compress generated by the light receiving unit is transferred, and a transfer through the vertical transfer unit.
- a horizontal transfer unit that outputs the stored charges, and a packing sweeping unit, and sweeps the load accumulated in the light receiving unit in response to the electronic shutter control signal to the charge sweeping unit.
- An external vertical synchronizing signal and an external horizontal synchronizing signal are used in a control device for controlling the operation timing of an imaging device having an interline transfer type solid-state imaging device having a shutter function.
- An external synchronizing signal input terminal to which a signal is supplied, a trigger signal input terminal to which a trigger signal for designating imaging of a subject is supplied from the outside, and a trigger supplied to the above trigger signal input terminal Outputs a trigger signal based on the trigger signal.
- a modulated horizontal sync signal that has a higher frequency than the external horizontal sync signal based on the external vertical sync signal supplied to the trigger signal output terminal and the external sync signal input terminal.
- a synchronous signal output terminal for generating an output vertical synchronization signal based on the external vertical synchronization signal, and a modulation for outputting the modulation horizontal synchronization signal and the output vertical synchronization signal to the imaging device.
- the modulation synchronization signal generating means includes: a timing after a predetermined time has passed since the trigger signal was supplied to the trigger input terminal;
- the field discrimination signal included in the external vertical synchronization signal is the same as the above until the timing indicating the start of one of the odd field and the even field.
- a signal having a higher frequency than the external horizontal synchronizing signal is generated as a modulated horizontal synchronizing signal.
- the control device fi of the imaging apparatus according to the present invention includes an output request signal that generates an output request signal at a predetermined timing based on the external vertical synchronization signal after the trigger signal is supplied.
- the modulation level synchronizing signal generating means further includes a generating means, wherein the output request signal is supplied at a predetermined time after the trigger signal is supplied, and the output request signal is supplied.
- the field discrimination signal included in the external vertical synchronization signal is a signal indicating that the field indicating the start of one of the odd field and the even field is performed. A signal having a frequency higher than that of the external horizontal synchronization signal is generated as the modulated horizontal synchronization signal.
- the control device fi of the imaging device generates an output request signal at a predetermined timing based on the external vertical synchronization signal after the trigger signal is supplied.
- Means for generating a modulated horizontal synchronizing signal the output request signal is supplied from a timing after a predetermined time after the trigger signal is supplied, and A signal having a higher frequency than the external horizontal synchronizing signal as the modulated horizontal synchronizing signal until the timing at which the external vertical synchronizing signal firstly indicates the start of a field. It is characterized by generating
- the present invention provides a light receiving unit that generates electric charges corresponding to an incident light beam, a vertical transmitting unit to which the electric charges generated by the light receiving unit are transferred, and a transfer through the vertical transferring unit.
- a horizontal transfer unit that outputs the stored charge and a charge sweeping unit, and sweeps the charge stored in the light receiving unit to the load sweeping unit in response to the II child shutter control signal.
- an external vertical synchronizing signal and an external horizontal synchronizing signal are used.
- An external synchronization signal generating means for generating a signal;
- a trigger signal input terminal to which a trigger signal for specifying an image is supplied from the outside, and a timing higher than that of the external horizontal sync signal with a timing based on the external vertical sync signal A modulation horizontal synchronizing signal, and an output vertical synchronizing signal based on the external vertical synchronizing signal, and a modulation horizontal synchronizing signal and an output vertical synchronizing signal.
- a modulation synchronization signal output terminal for outputting to the imaging device, a video signal input terminal for receiving a video signal output from the imaging device, and a video signal supplied to the video signal input terminal for external vertical synchronization Storage means for storing at a timing based on a signal.
- the modulation synchronization signal generation means is included in the external vertical synchronization signal from a timing after a predetermined time from the supply of the trigger signal. Until the field discrimination signal reaches the timing indicating the start of one of the odd field and the even field, the external signal is used as the modulated horizontal synchronization signal. It is characterized by generating a signal with a higher frequency than the horizontal synchronizing signal.
- the control system for an image pickup apparatus according to the present invention is configured to generate an output request signal at a predetermined timing based on the external vertical synchronization signal after the trigger signal is supplied.
- Means for generating a modulated horizontal synchronizing signal wherein the output request signal is supplied at a predetermined time after the trigger signal is supplied, and the output request signal is supplied.
- the field discrimination signal included in the external vertical synchronization signal is a timing indicating the start of one of the odd field and the even field.
- a signal having a frequency higher than that of the external horizontal synchronizing signal is generated as the modulated horizontal synchronizing signal.
- the control system of the imaging apparatus according to the present invention includes an output request signal generation unit that generates an output request signal at a predetermined timing based on the external vertical synchronization signal after the trigger signal is supplied.
- the modulated horizontal synchronizing signal generating means is provided with the output request signal at a predetermined time after the trigger signal is supplied, and is provided with the output request signal.
- An external vertical sync signal generates a signal having a higher frequency than the external horizontal sync signal as the modulated horizontal sync signal until the timing indicating the start of the first field. It is characterized by
- FIG. 1 is a timing chart showing the operation of a conventional imaging device.
- FIG. 2 is a block diagram showing the configuration of a conventional imaging device.
- FIG. 3 is a timing chart showing the operation of the conventional imaging device.
- FIG. 4 is a timing chart showing the operation of the conventional imaging device.
- FIG. 5 is a timing chart showing the operation of the conventional imaging device.
- FIG. 6 is a timing chart showing the operation of the conventional image pickup apparatus.
- FIG. 7 is a timing chart showing the operation of the conventional image pickup apparatus.
- FIG. 7 is a timing chart showing the operation of the present invention.
- FIG. 2 is a block diagram showing the configuration of a system.
- FIG. 8 is a plan view schematically showing the configuration of an IT-type CCD image sensor used for a CCD camera constituting the above-mentioned imaging system.
- FIG. 9 is a block diagram showing a specific configuration of the above CCD camera.
- FIG. 10 shows the evening imaging X-Negrator that constitutes the above CCD camera.
- FIG. 4 is a block diagram showing a specific example of the structure of the image.
- FIG. 11 is a block diagram showing a specific configuration of the H—counter night that constitutes the above-mentioned timing generator.
- FIG. 12 is a timing chart showing the operation of the H-counter.
- FIG. 13 is a block diagram showing a specific configuration of a light enable signal generation unit for forming an image capture device of the imaging system.
- FIG. 14 is a circuit diagram showing a specific ellipse of a modulated HD signal generation unit that constitutes the control device of the imaging system.
- FIG. 15 is a timing chart for explaining the operation of the modulated HD signal generation unit constituting the control device.
- FIG. 16 is a timing chart for explaining the operation of the modulated HD signal generation unit.
- FIG. 17 is a timing chart for explaining the operation of the control device.
- FIG. 18 is a timing chart for explaining the operation of the light enable signal generation unit of the image capture device.
- FIG. 19 is a timing chart for explaining the operation of the imaging system.
- FIG. 20 is a timing chart for explaining the operation of the timing generator of the CCD camera.
- FIG. 21 is a timing chart for explaining the operation of the timing generator of the CCD camera.
- FIG. 22 is a timing chart for explaining the operation of the imaging system.
- FIG. 23 is a timing chart for explaining the operation of the imaging system.
- FIG. 24 is a diagram for explaining a positional shift of a reproduced image in the above-described imaging system.
- FIG. 25 is a timing chart for explaining the operation of the imaging system.
- FIG. 26 is a block diagram showing another configuration of the imaging system according to the present invention.
- FIG. 27 is a block diagram showing another configuration of the imaging system according to the present invention.
- FIG. 28 is a block diagram showing another configuration of the CCD camera constituting the imaging system according to the present invention.
- FIG. 29 is a block diagram showing another configuration of the CCD camera constituting the imaging system according to the present invention.
- the imaging system according to the present invention detects a moving object 2 transferred by a transfer path 1 made of a belt conveyor or the like by a position fi sensor 3, This is an imaging system that captures a still image based on the detection output of the position E sensor 3.
- the CCD camera 1 that performs imaging according to the detection output of the position sensor 3 and outputs a video signal.
- An imaging device E including a control device S20 for controlling the operation of the camera 10 and an external synchronization signal EXT — HD, EXT-VD are supplied to the control device 20 and a CCD camera is provided.
- an image capturing device 30 for capturing the video signal from the camera 10.
- the position sensor 3 detects the moving object 2 transferred by the transfer path 1, and when the moving object 2 reaches the front of the position sensor 3, the position sensor 3 Generates the trigger signal TRIG-IN and supplies it to the control device 20 and the image capture device 30.
- the control device 20 controls the timing of exposure in the CCD camera 10 based on the trigger signal TRIG-IN supplied from the position sensor 3, and controls the image capturing device 30.
- the timing at which the CCD camera 10 outputs a video signal is controlled based on a light enable signal WE supplied from the camera.
- the CCD camera 10 captures an image of a moving object under the control of the control device S 20 and outputs a video signal at a timing based on the control of the control device 20. It is supplied to the image capture device 30.
- the image capture device 30 captures a video signal from the CCD camera 10.
- the control device 20 includes terminals CI and C 2 that supply horizontal and vertical synchronization signals SG—HD.SG—VD to the CCD camera 10. Based on the detection of the moving object 2 from the position sensor 3 and the terminals C 3 and C 4 for supplying the horizontal and vertical modulation synchronization signals TG — HD and TG_VD to the CCD camera 10.
- the terminal C 6 that supplies OUT to the CCD camera 10 is connected to Have.
- control device 20 is connected to the terminals C 7 and C 8 to which the external synchronization signals EXT—HD and EXT-VD are supplied from the image capturing device S 30, and from the image capturing device 30 Synchronization based on the terminal C 9 to which the enable signal WE is supplied and the external synchronization signal EXT — HD, EXT — VD supplied to the terminals C 7 and C 8 from the plane image capture device 30
- a signal SG-HD, SG—VD is generated, and the generated synchronous signal SG—HD, SG—VD is output to the terminals CI and C2.
- the synchronous signal generator 21 and the synchronous signal generator 21 Synchronization signal SG — HD, SG-VD and modulated synchronization signal TG based on the light enable signal WE supplied to terminal C9, etc.
- the synchronizing signal generator 21 outputs the horizontal and vertical synchronizing signals SG — HD, SG — VD according to the external synchronizing signals EXT — HD, EXT — VD supplied from the terminals C7 and C8. It is generated and supplied to CCD camera 10 via terminals CI and C2.
- the modulated HD signal generator 22 receives the synchronization signals SG-HD, SG-VD and the light signal according to the timing of the trigger signal TGIG-1N supplied from the terminal C5.
- a modulated horizontal synchronizing signal TG-HD and a modulated vertical synchronizing signal TG-VD based on the enable signal WE are generated and supplied to the CCD camera 10 via the terminals C3 and C4.
- the modulated HD signal generator 22 varies the frequency of the modulated horizontal sync signal TG-HD according to the set shutter speed, and adjusts the exposure time of the CCD camera 10.
- the line supplied to terminal C 9 The video signal from the CCD power camera 10 is supplied so that the video signal from the CCD camera 10 is supplied to the image capture device 30 at a timing synchronized with the enable signal WE. The output of this is controlled. As shown in FIG. 7 described above, the image capturing device 30 outputs signals from the external synchronizing signals EXT — HD, EXT — VD output terminals CIO, C11 and the CCD camera 10 to video.
- a light enable signal WE is generated based on the supplied trigger signal TRIG-IN, and the generated light enable signal WE is supplied to the control device 20 via the terminal C 13. It has an it enable signal creation unit 33.
- the synchronization signal generator 31 generates the external horizontal synchronization signal EXT-HD and the external vertical synchronization signal EXT-VD, supplies them to the memory 32, and connects the terminals C10 and C11.
- the light enable signal generation unit 33 generates a light enable signal WE in response to the trigger signal TRIG-IN supplied to the terminal C 14 and supplies the signal to the memory 32.
- the power is supplied to the control device 20 via the terminal C 13.
- the memory 32 stores the video signal supplied from the CCD camera 10 to the terminal C 12 in response to the light enable signal from the light enable signal generator 32. It is getting angry.
- the CCD camera 10 has an interline transfer (IT: Interline Transfer) ⁇ ! OCCD having a structure as shown in FIG. 8, for example. - twenty one -
- This IT-type CCD image sensor 11 is a light receiving section S corresponding to each pixel of an odd field.
- a light receiving section SEVEN corresponding to each pixel of the DD and the even field, a vertical transfer section V REC from which electric charges stored in each light receiving section S on D and SEVEN are read out, and a vertical transfer section V described above.
- the light receiving unit S is composed of a horizontal transfer unit HREC that outputs the $ load read to the REG as an image signal per horizontal line.
- each light receiving section S is controlled. It has an electron shutter function that controls the charge storage time by sweeping out the charge stored in DD and SEVEN to its substrate.
- the CCD camera 10 has a vertical transfer unit in which the S load accumulated in the light receiving unit of the CCD image sensor 11 is read out.
- a vertical drive unit 12 for controlling the transfer of a load, a timing generator 13 for generating a signal for driving the vertical drive unit 12 and the like, and a timing generator Based on the master clock generator 14 that supplies a master clock MCK of about 28.6 MHz to 13 and the trigger signal TRIG-0UT supplied to terminal C6.
- a shutter control signal generation unit 15 is provided for generating a shutter control signal SCP and supplying the shutter control signal SCP to the CCD image sensor 11.
- the C'CD camera 10 includes a horizontal synchronizing signal IT-HD / TG-HD and a vertical synchronizing signal IT-VD / TG- which are supplied to the timing generator 13 described above.
- CDS circuit Correlated double sampling circuit
- the synchronizing signal generator 17 generates an internal synchronizing signal IT—HD from a horizontal synchronizing signal SG—HD supplied from the terminal 1 and a vertical synchronizing signal SG—VD supplied from the terminal C 2.
- IT Generate VD and supply it to switches 16a and 16b.
- the switch 16a selectively selects one of the modulated horizontal synchronization signal TG-HD supplied from the terminal C3 and the internal horizontal synchronization signal IT-HD supplied from the synchronization signal generating section 17.
- the switching generator 16 supplies the modulated vertical synchronizing signal TG-VD supplied from the terminal C 4 and the internal vertical synchronizing signal supplied from the synchronizing signal generator 17 to the switching generator 13. Selectively time one of the signals IT-VD And the generator 13.
- the imaging system When operating in the random shutter mode, the imaging system uses horizontal and vertical synchronization signals TG-HD, TG-VD supplied to terminals C3 and C4. The power is supplied to the timing generator 13 via the switches 16a and 16b.
- the timing generator 13 counts the modulated horizontal synchronizing signal TG-HD 9 times from the start of the exposure of the CCD image sensor 11, and then, The charge accumulated in the light receiving section of the CCD image sensor 11 is read out to the vertical transfer section of the CCD image sensor 11 to form a read signal R02. I have. Therefore, the accumulation time of the CCD image sensor 11 is determined by the time required to count the modulated horizontal synchronizing signal TG-HD 9 times and the predetermined time required to form the readout signal RO 2. The sum between them.
- the timing generator 13 is configured, for example, as shown in FIG. That is, the timing generator 13 is an edge to which the vertical synchronization signal TG-VDZIT—VD selected by the switch 16b is supplied.
- Detection circuit 13 1 V to which the output of the edge detection circuit 13 1 is supplied to the data input terminal, V — counter 13 2, and the above master clock generator
- the output of the edge detection circuit 135 is supplied to the data input terminal.
- H — The counter 1336 and the master clock from the master clock generator 14 Invert MCK
- the edge detection circuit 13 1 is composed of two cascade-connected master clocks MCK inverted by the inverters 13 3 and supplied to a clock input terminal.
- the vertical synchronization signal TG-VD / IT—VD selected by the switch 16b is supplied to the data input terminal of the flip-flop 13A. It has become.
- the edge detection circuit 1331 detects the falling edge of the vertical synchronization signal TG—VDZIT-VD, and detects the master clock at the timing of the falling edge.
- the edge detection output of one clock width of the clock MCK is supplied to the data input terminal of the above V — counter 132.
- the decoded output of the decoder 1338 is supplied to the clock input terminal of the V-counter 1332.
- the V-counter 1332 counts the decode output of the decoder 1338 based on the edge detection output by the edge detection circuit 1331. Then, the count output is supplied to the decoder 1 34.
- the edge detection circuit 135 is composed of two cascade-connected master clocks MCK inverted by the inverter 133 and supplied to the clock input terminal.
- the horizontal synchronization signal TG-HDZIT-HD selected by the switch 16a is supplied to the flip-flop 1335A data input terminal. ing.
- This edge detection circuit 13 5 detects the falling edge of the horizontal synchronization signal TG—HDZIT-HD and detects the falling edge of this master clock at the timing of this falling edge.
- the edge detection output of one clock width of MCK is supplied to the data input terminal of H-counter 1336.
- the decoder of the above-mentioned decoder 134 is supplied to the clear input terminal of the H-counter 1336.
- the H—counter 1336 outputs the master port MCK based on the edge detection output supplied to the edge detection circuit 1335 and the edge detection input terminal. After counting, the count output is supplied to the decoder 1338. By decoding the count output of the H-counter 1336, the decoder 1338 can drive the CCD image sensor 11 variously. XV 2, XV 3, XV 4, XSG 1, XSG 2, PG, HI, H 2 are generated.
- the H-counter 1336 supplies the edge detection output from the edge detection circuit 135 to the load terminal as shown in FIG.
- a gate 133 to which the outputs Q, 0 of the flip-flops 133 C, 133 D are supplied.
- the above counter 13 33 ⁇ ⁇ counts the master clock MCK. ⁇ It is a binary counter, which is inverted by the above inverter 13 7.
- the master clock MCK as shown in 2 (b) is supplied to the clock input terminal. If the period of the edge detection output supplied to that load terminal shown in Fig. 12 (a) is longer than N1, this counter 1333A The output is N1 count as shown in Fig. 12 (c).
- One pulse A is supplied to the clock input terminal of the flip-flop 133 C at the time of the reset.
- the flip-flop 1333C gates the output Q as shown in Figure 12 (d), whose state is inverted by the count output from the counter 133A. 1 3 3 Supply to E.
- the above counter 1333B is an N2 (N1 and N2) base counter for counting the master clock MCK.
- the master clock MCK as shown in Fig. 12 (b), which is inverted by this, is supplied to the clock input terminal. If the period of the edge detection output supplied to the load terminal shown in Fig. 12C a) is longer than N2, this counter 1333B Then, as shown in FIG. 12 (e), one pulse B is supplied to the flip-flop 13 3D clock input terminal at the time of N 2 count. .
- the flip-flop 1 3 3D outputs the output as shown in Fig. 12 (f) whose state is inverted by the count output from the counter 1 3 3B. 1 3 3 Supply to E.
- the gate 1333E is an AND circuit, and the output of each flip-flop 1333C, 113C is ⁇ 3, Q and the logical product output. Then, it rises N1 counts after the falling edge of the edge detection output by the edge detection circuit 135, and falls after N2 counts.
- An output pulse X as shown in FIG. 12 (g) is formed.
- the cycle of the edge detection output by the edge detection circuit 135 is shorter than N1.
- N1 is 40 counts and the edge detection output period is 4
- the output Q, Q of each of the above flip-flops 1 3 3 1 1 3 D Both are at the mouth level, and the output pulse X does not exist.
- the light enable signal generator 33 of the surface image capturing device 30 inputs an external vertical synchronizing signal EXT-VD to a clock terminal CK as shown in FIG. 13, for example.
- a flip-flop 34 which is reset by a trigger signal TRIG-IN supplied from the position sensor 3 via the terminal C14, and the flip-flop.
- Mono multivibrators 35, 36 that form pulses of a predetermined length from the output of the flip-flop 34, and respond to the trigger signal TRIG-IN supplied to the terminal C14.
- the same write enable signal WE is generated and supplied to the memory 32 and also to the control device 20 via the terminal C13.
- the control device 20 includes a mono-multivibrator 41 that generates a pulse of a predetermined length in response to a trigger signal TRIG-IN supplied to a terminal C5.
- the master clock MCK which is reset by the output of the mono multivibrator 41 and supplied from the synchronous signal generator 21, is divided by 1Z2.
- 1/4 frequency clock that is obtained by frequency-dividing the 1/4 MHz clock CL by 1/4 frequency (approximately 3.5 MHz) (hereinafter referred to as the CL / 4 signal).
- CL / 4 signal 1/4 frequency clock that is obtained by frequency-dividing the 1/4 MHz clock CL by 1/4 frequency (approximately 3.5 MHz)
- a mono multivibrator 44 that forms a pulse of a predetermined length and the pulse width of the horizontal synchronization signal SG-HD supplied from the synchronization signal generator 21 are adjusted.
- Roh Multibuy has a blanking rate data 4 5, 4 6, and the like.
- control device 20 includes a counter 51 for dividing the CLZ4 signal, and the like, and the frequency dividing ratio of the counter 51 can be varied. Thus, a frequency-variable signal is formed, and the frequency of the modulated horizontal synchronization signal TG-HD is varied based on this signal. Further, the control device 20 controls the flip-flops 69, 70, etc., which are reset by the light enable signal WE supplied to the terminal C9. The signal supplied from the counter 58 through the switches 64, 65, etc. by the switch 72, and the CLZ 4 signal from the synchronization signal generator 21 are provided. Is selectively synchronized with the light enable signal WE by supplying the modulated horizontal sync signal TG-HD to the CCD camera 10 via the terminal C3. Timing of the output of the video signal from the CCD camera 10 so that the video signal from the CCD camera 10 is supplied to the image capturing device 30 at the specified timing. Is controlled.
- the mono multivibrator 41 of the control device 20 generates a signal shown in FIG. 15 (b) based on the trigger signal TRIG-IN shown in FIG. 15 (a). Supplied to reset terminals of flip-flops 42 and 43.
- the flip-flop 42 is supplied with a high-level output from the mono multivibrator 41 at the reset terminal.
- the output Q is at the high level, but the output Q of the mono multivibrator 41 supplied to the reset terminal is low as described above. When it becomes levelless, it is reset, and its output Q becomes low level. Then, when the output Q of the mono-mano reciprocating vibrator 41 becomes a noise level, the output Q of the flip-flop 42 becomes as shown in FIG.
- the flip-flop 43 is reset by the output Q of the mono multivibrator 41 in the same manner as the flip-flop 42 described above. As shown in Fig. 5 (e), the output Q goes high. When the output Q of the flip-flop 42 becomes a high level, the output Q of the flip-flop 43 becomes the output of the next supplied CL / 4 signal. It becomes a mouth level in synchronization with the rise.
- the output Q of the flip-flop 42 is supplied to a switch 47 via a mono multivibrator 44, and the switch 47 generates a synchronizing signal generator.
- the switching is selected with the continuous pulse generated by the mono-multivibrator 45.46.
- a trigger signal T RIG —OUT shown in FIG. 15 (g) is formed and supplied to the CCD camera 10 via the terminal C 6.
- the output Q of 4 3 is supplied to a gate 48, where a NOR operation is performed.
- the output of the gate 48 is synchronized with the first CLZ4 signal after termination of the trigger signal TRIG-IN, as shown in FIG. 15 (f>).
- the output of this gate 48 is supplied to a mono-multivibrator 61. Then, the mono multivibrator 61 adjusts the pulse width of the output of the gate 48 shown in FIG. 16A, for example, to change the pulse width as shown in FIG. 16D.
- the NOR of the output P1 of the counter 51 is obtained, and the result is supplied to the load terminal of the counter 51.
- the output of the gate 48 is supplied to a flip-flop 54 and the like, and the counter 5 Supplied to the 3rd terminal.
- the counter 51 divides the CL / 4 signal by 1 ZN based on the ratio N (N: 1 to 15) set in advance by setting the control input, and the period is CLZ.
- a signal P 1, which is N times the number of the four signals, is supplied to the gate 50 and also supplied to the counter 53 via the switch 52.
- the gate 50 calculates the NOR of the signal P1 supplied from the counter 51 and the output of the gate 49, and outputs a signal as shown in FIG. 16 (b). It is supplied to the load terminal of evening 51 and mono multivibrator 60.
- the mono-multiple output 60 adjusts the pulse width of the output of the gate 50 and supplies the output of the gate 50 with the adjusted pulse width to the switch 64. Pay.
- the output of the mono multivibrator 60 is transmitted through the switches 64, 65, 72 and the terminal C3 as the modulated horizontal synchronizing signal TG—HD as shown in FIG. Then, it is supplied to the CCD camera 10.
- FIG. 17 (a) shows the horizontal synchronization signal SG—HD from the synchronization signal generator 21
- FIG. 17 (b) shows the vertical synchronization signal SG—from the synchronization signal generator 21.
- VD shows the trigger signal TRIG-IN supplied from the position sensor 3.
- FIG. 17 (e) shows a signal V—SUB that controls the voltage of the vertical drive unit 12 to the CCD image sensor 11 substrate.
- the load accumulated in each pixel of the light receiving section of the CCD image sensor 11 is When the signal V-SUB supplied to the substrate goes to a high level, the signal V-SUB is swept away by the substrate of the CCD image sensor 11.
- the output P 1 of the counter 51 is a signal having a higher frequency than the horizontal synchronization signal SG-HD from the synchronization signal generator 21.
- the period Ta of the output P1 can be changed by setting the counter 51 as described above.
- the switch 52 switches between the CL / 4 signal and the output P1 of the counter 51 based on the output of the gate 49 and supplies the signal to the counter 53. .
- the counter 53 divides the signal supplied from the counter 51 via the switch 52 by 9 and divides it by 9 to the clock terminal of the flip-flop 54. Supply.
- the flip-flop 54 is reset at the output of the gate 48, and forms the signal shown in FIG. 17 (g).
- the signal formed by the flip-flop 54 is supplied to the gate terminal of the counter 58 through the gate 67 and is also supplied through the gate 55. Then, it is supplied to the mouth terminal of the counter 56.
- the output " ⁇ " of the flip-flop 54 is supplied to the switch 57, and the counter 5 is provided based on the output Q of the flip-flop 54. 6 or one of the CL / 4 signals is selectively supplied to the counter 58.
- the output of the counter 58 is supplied to the clock terminals of flip-flops 62 and 63.
- This flip-flop 6 2, 6 3 has a The output Q of the flip-flop 54 described above is supplied to the set terminal.
- the flip-flop 62 has its data input terminal always set to high level, and its output Q is connected to the data input terminal of the flip-flop 63.
- the output P4 of the flip-flop 63 is the output of the flip-flop 54 as shown in FIG. 17 (i)!
- the period (T 1 + T 2) for two cycles of the output P 3 of the counter 58 becomes high level c .
- the switch 64 controlled to be switched by the output P 2 of the flip-flop 54 shown in FIG. 17 (g) is the switch supplied via the inverter 59.
- the output P 3 of the counter 58 and the output of the mono multivibrator 60 are selected to be switched, and the output P 2 of the flip-up mouth 54 is the mouth-to-mouth level.
- the output of the mono multinoiser 60 is selected, and during the other period, the output of the inverter is selected.
- the switch 65 controlled by the output P4 of the flip-flop 63 shown in Fig. 17 (i) is connected to the selected output of the switch 64 and the terminal.
- This switch selects the horizontal synchronizing signal SG-HD supplied from C 3, and switches the switch during the period when the output P 4 of the flip-flop 63 is at a high level. 6 Select the selection output of 4 and select the horizontal sync signal SG-HD for the other period. As a result, the selected output of the switch 64 is connected to the terminal C as the modulated horizontal synchronizing signal TG-HD shown in FIG. 17 (j) via the switch 65 and the switch 72. 3 is supplied to CCD camera 10.
- the frequency of the output P2 of the flip-flop 54 shown in FIG. 17 (g) is changed by the setting of the counter 51 described above.
- the frequency of the above-mentioned modulated horizontal synchronization signal TG-HD is the same as the above-mentioned flip-flop. Changes according to the frequency of the output P2 of the lop 54.
- the charge storage time of the CCD image sensor 11 can be varied according to the frequency of the variable horizontal synchronization signal TG-HD. Therefore, in this imaging system, the accumulation period of the CCD image sensor 11, that is, the exposure time of the CCD camera 10 is changed by the setting of the counter 51. Can be done.
- the light enable signal generating section 33 of the image capturing device 30 is supplied with the trigger signal TRIG-IN shown in FIG. 18 (a) from the position sensor 3. Then, a write enable signal WE shown in Fig. 18 (d) is generated in synchronization with the external vertical synchronization signal EXT-VD shown in Fig. 18 (b) and supplied immediately after that.
- the enable signal WE is supplied to the memory 32 and also to the modulated HD signal generator 22 of the controller 20 through the terminal C9.
- the flip-flop 34 of the write enable signal generating section 33 is reset by the trigger signal TR1G-IN supplied to the terminal C14.
- the external vertical synchronization signal EXT — VD from the external synchronization signal generator 31 operates as a clock. That is, as shown in FIG. 18 (c), the output P11 of the flip-flop 34 is connected to the first external vertical synchronizing signal EXT after the trigger signal TRIG-IN is supplied. The period until the end of one IN.
- the enable signal WE is shaped and supplied to the memory 32 and the terminal C13.
- the data input terminal of the flip-flop 68 of the above controller 20 The synchronization signal generator shown in FIG. 19 (f) is supplied with a field judgment signal FLD for identifying the fields of SG—HD and SG-VD from the synchronization signal generator 21. ing.
- the flip-flop 69 is reset by the light enable signal WE from the surface image capturing device 30 shown in FIG.
- the output P5 of the flip-flop 68 shown in (g) is input as a clock. That is, as shown in FIG. 19 (h), the output P6 of the flip-flop 69 becomes the next signal when the light enable signal WE becomes low level.
- the flip-flop judgment signal FLD shown in Fig. 19 (f) becomes high level, that is, 0 DD feed, and the flip-flop 68 output to the clock terminal is output. This is the level until P5 rises.
- the flip-flop 70 is reset by the output Q of the flip-flop 63 described above, and the output P 6 of the flip-flop 69 is reset.
- the output P7 of the flip-flop 70 is the output P4 of the flip-flop 63 shown in FIG. 19 (c). Is high level during the period from when the output P6 of the flip-flop 69 shown in Fig. 19 (h) first changes from the level to the high level. .
- the gate 71 performs a NAND operation on the output P7 of the flip-flop 70 and the output Q of the flip-flop 63. Then, when the NAND is low, the switch 72 is controlled so that the CL / 4 signal is supplied to the terminal C3. That is, as shown in FIG. 19 (k), while the output P8 of the gate 71 is at a low level, that is, the transfer of the vertical transfer register of the CCD image sensor 11 is performed. During the vertical transfer stop period to stop, CL / 4 la The signal is supplied to the CCD camera 10 as the modified horizontal synchronization signal TG-HD.
- Fig. 19 (a) shows the trigger signal TRIG-IN
- Fig. 19 (b) shows the output P9 of switch 65
- Fig. 19 (d) shows the modulation vertical.
- the synchronization signal TG—VD is shown
- FIG. 19 (m) shows the video signal VIDEO output from the CCD camera 10.
- the timing generator 13 of the CCD camera 10 counts the changed horizontal synchronizing signal TG-HD 9 as described above, and then resets the CCD camera.
- a read signal for reading out the electric charge accumulated in the light receiving section of the image sensor 11 to the vertical transfer section of the CCD image sensor 11 is formed. That is, the timing generator 13 forms the read signal R02 shown in FIG. 17 (m).
- the exposure time of the CCD image sensor 11 is determined by the read signal shown in Fig. 17 (m) after the trigger signal TRIG-IN shown in Fig. 17 (d) is supplied. This is the period until RO 2 is supplied.
- FIG. 17 (c) shows the timing at which the readout signal R01 in the conventional imaging apparatus is supplied
- FIG. 17 (k) shows the modulation vertical synchronizing signal TG-VD. Is shown.
- the sum of the electric charges read out to the vertical transfer unit is obtained for each of two vertically adjacent pixels based on the control from the timing generator 13. Then, when the horizontal synchronizing signal SG-HD shown in FIG. 20 (a) is supplied, for example, the timing generator 13 outputs the signal shown in FIG. 20 (d) at a predetermined time interval.
- the vertical transfer signals XV1, XV2, XV3, and XV4 shown in ( g ) are generated.
- the load transferred to the vertical transfer unit is transferred to the vertical transfer unit by the well-known four-phase drive method. Transferred in the direction.
- the timing generator X 13 outputs the master clock shown in FIG. 20 (b) from the timing at which the horizontal synchronization signal SG-HD becomes a low level.
- the clock CL shown in Fig. 20 (c) which is obtained by dividing the master clock MCK of about 28 MHz supplied from the clock generator 14 by 2 by 44, is counted 44 times.
- the vertical transfer signal XVI is set to the high level, and after the clock CL is further counted 27 times, the vertical transfer signal XV1 is set to the low level.
- the count of the clock CL is reset by the above-described horizontal synchronization signal SG-HD.
- H Performed by counter 1 36.
- the modulated horizontal synchronizing signal TG-HD includes the CL / 4 signal. Therefore, when the modulated horizontal synchronization signal TG_HD is supplied to the timing generator 13, the period during which the CLZ 4 signal shown in FIG. 21B is supplied, that is, the vertical transfer is stopped. In the period, the clock CL is counted H—the counter 1336 is reset every four cycles of the clock CL, and the clock CL is reduced by 44 clocks. Cannot be installed. As a result, in this timing generator 13, the vertical transfer signals XV 1 to XV 4 are supplied during the period in which the CLZ 4 signal is supplied as the modulated horizontal synchronization signal TG—HD. Does not form. That is, during this period, the vertical transfer is stopped in the vertical transfer unit of the CCD image sensor 11.
- FIG. 21 (a) shows a normal horizontal synchronizing signal SG-HD
- FIG. 22 (c) shows a vertical transfer signal XV1.
- variable horizontal synchronization signal TG- By supplying the CL / 4 signal as HD, the vertical transfer of the compress in the vertical transfer section of the CCD image sensor 11 is stopped.
- the supply of the CL / 4 signal as the modulated horizontal sync signal TG-HD is the first signal after the light enable signal WE is supplied. Stops at the timing of the rise of the vertical synchronization signal VD immediately after the rise of the field discrimination signal FLD. At this timing, the timing generator 13 starts generating the above-mentioned transfer signals XV1 to XV4, and transmits the generated vertical transfer signals XV1 to XV4 to the vertical drive unit.
- the CCD image sensor 11 synchronizes with the vertical synchronization signal TG-VD of the first ODD field after the supply of the write enable signal WE.
- the imaging signal is output.
- the CCD image is controlled.
- the vertical transfer of the vertical transfer unit of the image sensor 11 is controlled, and the output of the imaging signal is performed at the timing corresponding to the write enable signal WE from the image capture device 30. Controlling im- aging.
- the moving object 2 is detected by the position sensor 3, and the trigger signal TRIG-IN is generated based on the timing, and the trigger signal is generated.
- Trigger signal TRIG — CC based on IN
- the imaging timing of the D camera 10 is controlled.
- the modulated HD signal generation unit 22 of the control device 20 Based on the trigger signal TRIG-IN supplied to the terminal C5, the modulated HD signal generation unit 22 of the control device 20 generates a trigger signal TRIG having a predetermined pulse length. — OUT is generated and this trigger signal TRIG — OUT is supplied to CCD camera 10 via terminal C 6.
- the modulated HD signal generation unit 22 receives the external synchronization signal EXT from the synchronization signal generation unit 21 as described above. HD, EXT-VD, and generates the modulated horizontal sync signal TG-HD and the modulated vertical sync signal TG-VD, and during the above vertical transfer stop period, enables the light from the image capture device 30.
- the CLZ4 signal is inserted into the modulated horizontal synchronizing signal TG-HD to control the transfer of the load in the vertical transfer section of the CCD image sensor 11 to be stopped.
- the timing generator 13 of the CCD camera 10 detects the charge stored in the light receiving section of the CCD image sensor 11 after a predetermined charge storage time has elapsed. Is read out to the vertical transfer unit, and the readout signal RO2 is supplied to the CCD image sensor 11.
- the vertical transmission signals V 1 to V are sent to the vertical transfer unit of the CCD image sensor 11 at the timing when the modulated horizontal synchronization signal TG—CLZ 4 signal in HD ends. 4 and the CCD image sensor 11 sequentially outputs the charges read out to the vertical transfer unit as an image pickup signal.
- This imaging signal is converted into a video signal via the CDS 18 and the process processing section 19, and is supplied to the image capture device 30.
- the modulated horizontal sync signal TG — C inserted in HD As shown in Figure 19 (k), the LZ 4 signal is the end of the vertical synchronization signal TG — VD of the first ODD field after the supply of the write enable signal WE. Stops at the right timing. Therefore, at this timing, the output of the imaging signal from the CCD image sensor 11 is started, and the output from the CCD camera 10 supplied to the image capturing device S30 is started.
- the video signal is modulated vertically when the final decision signal FLD from the synchronizing signal generator 21 is 0 DD final. Output in synchronization with sync signal TG-HD.
- the CCD camera 10 A video signal can be supplied to the image capture device 30.
- the output timing of the video signal from the CCD camera 10 can be controlled from the image capturing device 30, and the image can be captured reliably. Can be done.
- an image of an ODD finolade based on an imaging signal output from a CCD image sensor 11 is used.
- the images 81 of the EVEN and EVEN fields are output with the ODD and EVEN fields of the video signal, respectively, so that when displayed on a monitor, It can be reproduced as a normal image.
- the image 80 of the ODD field of the CCD image sensor 11 and the image 81 of the EVEN field are output as inverted fields, respectively.
- the image of the ODD field of the CCD image sensor 11 is displayed on the EVEN field note 82 on the monitor.
- the image of the EVEN finolade of the CCD image sensor 11 is displayed on the ODD field 83 on the monitor, causing a displacement.
- the video signal from the CCD camera 10 may be output in the field immediately after the supply of the write enable signal WE.
- the flip-flop 68 is deleted and the clock of the flip-flop 69 is changed to the clock of the flip-flop 69.
- the video signal from the CCD camera 10 is as shown in Fig. 25 (c).
- the light enable signal WE shown in Fig. 25 is supplied during the EVEN finless period, it is output in the next ODD field as shown in Fig. 25 (d). .
- a video signal is output about 1.5 times as long as the vertical scanning period after the trigger signal TRIG-IN shown in Fig. 25 (a) is supplied.
- the video signal is output as shown in FIG. 25 (d). Is output at the next EVEN field. At this time, a video signal is output in about 1.2 times the vertical scanning period after the trigger signal TRIG-1N shown in FIG. 25 (a) is supplied.
- the output timing of the video signal from the CCD camera 10 is not limited to the 0 DD fin, but the 0 DD fin and the EVEN fin are not limited. In either case, the time from when the trigger signal TRIG-IN is supplied from the position S sensor 3 to when the video signal is output becomes shorter.
- FIG. 25 (b) shows the vertical synchronization signal EXT-VD.
- the imaging system according to the present invention outputs a video signal from the CCD camera 10 based on the trigger signal TRIG-IN from the position sensor 3. Can be controlled based on the write enable signal WE from the image capture device 30. Therefore, in this imaging system, the timing for outputting the video signal from the CCD camera 10 can be set arbitrarily according to the convenience of the image capturing device 30. Therefore, the image capturing device 30 can capture the image reliably.
- the light enable signal WE is used to capture
- the controller 20 generates the light enable signal generator 33 of the device 30 and the control device 20 outputs the video signal output signal from the CCD camera 10 based on the light enable signal WE.
- the configuration is such that the imaging is controlled. However, if there is enough time to write the memory 32, the controller 20 generates the light enable signal WE. Is also good.
- the image processing device 95 is provided with a synchronization signal generation unit 96 and a memory 97 having the same function as the synchronization signal generation unit 31 shown in FIG.
- the control device 90 has the same function as the synchronization signal generator 21 shown in FIG. 7 described above, and the modulated HD signal generator 22 shown in FIG. 7 described above. Has the same function as the above, and generates the light enable signal WE immediately after the trigger signal TRIG-IN supplied from the position sensor 3 to store the memory 97 7 of the image capturing device 95.
- the light enable signal WE is generated immediately after TRIG-IN, and the memory 977 of the image capture device 95 is generated.
- the CCD camera 10 supplies the light enable signal.
- the video signal is supplied to the image capturing device 95 at the timing synchronized with WE.
- the timing of the video signal supplied from the CCD camera 10 to the image capturing device 95 can be controlled, and the image capturing can be reliably performed. Can be performed.
- the charge transfer in the vertical transfer section of the CCD image sensor 11 of the CCD camera 10 is described above.
- the above-mentioned CLZ 4 signal is supplied to the timing generator 13 as the modulated horizontal synchronization signal TG-HD to stop the operation, but the CCD image is stopped.
- the signal supplied to the timing generator 13 for stopping the transfer of electric charges in the vertical transfer section of the sensor 11 is not limited to the above-described CL / 4, but may be the above-described vertical transfer signal V 1.
- the image capturing device g105 is connected to the synchronizing signal generator 106 and the memory device similarly to the image capturing device 95 shown in FIG.
- the light enable signal WE is generated by either the modulated HD signal generator 102 or the image capture device S105. It may be.
- the switches 16a and 16b provided on the CCD camera 10 are switched so that the evening imaging energy can be output.
- a normal kill mode in which a moving image is captured based on the internal synchronization signal IT-HD. IT-VD from the internal sync signal 13 and the trigger signal TRIG-OUT supplied from the terminal C6. Supply to terminals C 3 and C 4
- the modulation synchronization signal TG is switched to the random shutter mode in which a still image is captured in accordance with the HD, TG-VD.
- a, 16b is omitted, and the terminals C3, C4 are directly connected to the timing circuit, such as a CCD camera 110 shown in Fig. 28.
- the operation mode may be switched on the control device 20 side by selectively supplying the synchronization signal SG—VDH.
- the control of the operation of the CCD camera 10 is controlled by the control device 20, and the video signal from the CCD camera 10 is image-captured.
- the control device 20 and the CCD camera 10 need not be provided separately, for example, the CCD camera 12 shown in FIG. As in the case of 0, the function of the control device 20 may be configured to be mounted on the CCD camera 10. That is, the CCD camera 120 shown in FIG. 29 includes the synchronizing signal generator 21 and the modulation signal generator 2 constituting the control device 20 in the imaging system shown in FIG. 2 is installed on the CCD camera 10 side.
- the configuration is simplified by omitting the control device 20 in the imaging system shown in FIG. 7 described above.
- the timing of outputting a video signal from the CCD camera 120 can be controlled due to the convenience of the image capturing device 30, and the image capturing device 30 reliably captures a surface image. be able to.
- the present invention it is possible to output an imaging signal from a solid-state imaging device at a timing to which a light enable signal is supplied. Synchronization with external devices is easy. Therefore, in the present invention, the timing for outputting a video signal can be set arbitrarily for the convenience of an external device, and the degree of freedom in use is improved.
- a video signal can be output at a timing at which a light enable signal supplied from the image capturing device is supplied, and the image capturing device can be output from the image capturing device. Images can be easily synchronized with other video signals. For this reason, in the present invention, it is possible to control the timing of outputting an imaging signal from the imaging device for the convenience of the image capturing device, and the image capturing device can reliably capture the image. I can do it.
- the image capturing device is a device that receives images from the imaging device.
- the video signal can be captured at the timing at which the light enable signal is supplied from the imaging device.
- the image capturing device fi can reliably capture an image in synchronization with an image capturing signal from the image capturing device.
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US08/615,283 US6005618A (en) | 1994-07-29 | 1995-06-28 | Image pick-up device with control circuit that provides a variable horizontal synchronizing signal |
DE19581046.5T DE19581046B4 (de) | 1994-07-29 | 1995-07-28 | Bildabtastgerät und Abbildungssystem |
JP50639196A JP3704712B2 (ja) | 1994-07-29 | 1995-07-28 | 撮像装置及び撮像システム |
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JP17932194 | 1994-07-29 | ||
JP6/179321 | 1994-07-29 |
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WO1996004751A1 true WO1996004751A1 (en) | 1996-02-15 |
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PCT/JP1995/001512 WO1996004751A1 (en) | 1994-07-29 | 1995-07-28 | Image pickup device and image pickup system |
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US (1) | US6005618A (ja) |
JP (1) | JP3704712B2 (ja) |
KR (2) | KR100391242B1 (ja) |
CN (1) | CN1054016C (ja) |
DE (1) | DE19581046B4 (ja) |
WO (1) | WO1996004751A1 (ja) |
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KR100445213B1 (ko) * | 1996-06-11 | 2004-12-08 | 소니 가부시끼 가이샤 | 촬상장치및그제어장치 |
US5973734A (en) | 1997-07-09 | 1999-10-26 | Flashpoint Technology, Inc. | Method and apparatus for correcting aspect ratio in a camera graphical user interface |
US6498623B1 (en) * | 1997-11-04 | 2002-12-24 | Flashpoint Technology, Inc. | System and method for generating variable-length timing signals in an electronic imaging device |
US6317141B1 (en) | 1998-12-31 | 2001-11-13 | Flashpoint Technology, Inc. | Method and apparatus for editing heterogeneous media objects in a digital imaging device |
US6784929B1 (en) * | 1999-08-20 | 2004-08-31 | Infineon Technologies North America Corp. | Universal two dimensional (frame and line) timing generator |
JP4368835B2 (ja) * | 2005-08-29 | 2009-11-18 | 富士通マイクロエレクトロニクス株式会社 | 画像処理装置、撮像装置及び画像処理システム |
US9224145B1 (en) | 2006-08-30 | 2015-12-29 | Qurio Holdings, Inc. | Venue based digital rights using capture device with digital watermarking capability |
US7453980B1 (en) | 2007-06-25 | 2008-11-18 | Gilevich Alexander I | Apparatus and method for acquiring an image of an object |
US8692873B2 (en) | 2009-01-15 | 2014-04-08 | Alverix, Inc. | Video-frame data receiver with low frame capture rate |
DE102009054578A1 (de) * | 2009-12-11 | 2011-06-16 | Carl Zeiss Imaging Solutions Gmbh | Bildaufnahmeeinheit und Verfahren zur Steuerung einer Bildaufnahmeeinheit |
JP5593078B2 (ja) | 2010-01-26 | 2014-09-17 | 東芝テリー株式会社 | カメラ装置 |
JP2011216948A (ja) * | 2010-03-31 | 2011-10-27 | Sony Corp | カメラシステム、映像処理装置及びカメラ装置 |
CN102006420B (zh) * | 2010-12-17 | 2012-02-08 | 四川川大智胜软件股份有限公司 | 可使用外接同步的多种数据输出格式摄像机的设计方法 |
US9160901B2 (en) | 2012-01-13 | 2015-10-13 | Canon Kabushiki Kaisha | Image pickup apparatus, lens unit, and methods of controlling the same |
JP6843550B2 (ja) * | 2016-08-19 | 2021-03-17 | シナプティクス・ジャパン合同会社 | 表示ドライバ及び表示装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63174479A (ja) * | 1987-01-14 | 1988-07-18 | Hitachi Ltd | 光学像検出回路 |
JPH0686007A (ja) * | 1992-09-04 | 1994-03-25 | Asahi Optical Co Ltd | 画像情報読取り装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62258563A (ja) * | 1986-05-01 | 1987-11-11 | Omron Tateisi Electronics Co | 静止撮像カメラ |
US4714963A (en) * | 1986-07-03 | 1987-12-22 | Eastman Kodak Company | Asynchronous still timing for a video camera producing movie or still images |
JPH0241082A (ja) * | 1988-08-01 | 1990-02-09 | Hamamatsu Photonics Kk | 電子式シャッタカメラ装置 |
JPH04119776A (ja) * | 1990-09-11 | 1992-04-21 | Sony Corp | 固体撮像装置 |
JPH056007A (ja) * | 1991-06-27 | 1993-01-14 | Dainippon Ink & Chem Inc | 電子写真感光体 |
US5422670A (en) * | 1992-08-31 | 1995-06-06 | Sony Corporation | Control circuit for a solid state imaging device which allows a high speed object to be detected |
US5614949A (en) * | 1994-06-28 | 1997-03-25 | Fuji Photo Optical Co Ltd. | Exposure control device for electronic endoscope |
-
1995
- 1995-06-28 US US08/615,283 patent/US6005618A/en not_active Expired - Lifetime
- 1995-07-28 JP JP50639196A patent/JP3704712B2/ja not_active Expired - Lifetime
- 1995-07-28 KR KR10-2002-7018037A patent/KR100391242B1/ko not_active Expired - Lifetime
- 1995-07-28 KR KR1019960701645A patent/KR100382025B1/ko not_active Expired - Lifetime
- 1995-07-28 DE DE19581046.5T patent/DE19581046B4/de not_active Expired - Lifetime
- 1995-07-28 WO PCT/JP1995/001512 patent/WO1996004751A1/ja active Application Filing
- 1995-07-28 CN CN95190873A patent/CN1054016C/zh not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63174479A (ja) * | 1987-01-14 | 1988-07-18 | Hitachi Ltd | 光学像検出回路 |
JPH0686007A (ja) * | 1992-09-04 | 1994-03-25 | Asahi Optical Co Ltd | 画像情報読取り装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1054016C (zh) | 2000-06-28 |
KR100382025B1 (ko) | 2003-08-27 |
US6005618A (en) | 1999-12-21 |
KR100391242B1 (ko) | 2003-07-12 |
DE19581046B4 (de) | 2020-02-06 |
DE19581046T1 (de) | 1996-11-14 |
KR960705444A (ko) | 1996-10-09 |
JP3704712B2 (ja) | 2005-10-12 |
CN1135275A (zh) | 1996-11-06 |
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