JP2006330445A - Electronic equipment and electronic equipment system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve convenience in controlling a portable audio device with an external device.
When a key 37 of an external device 30 assigned to a key 16 of a portable audio device 10 is pressed, an analog signal of a voltage indicating that the key 37 is pressed is converted into a microcomputer 31 and a voltage conversion. The signal is generated by the unit 33 and input to the microcomputer 13 via the headphone terminal 19. The lighting function 13d of the microcomputer 13 determines that the key 37 of the external device 30 assigned to the key 16 is pressed based on the analog signal, and makes the periphery of the backlight 17 of the liquid crystal display panel 15 and the key 16 bright. The light 18 is turned on.
[Selection] Figure 1

Description

  The present invention relates to an electronic device and an electronic device system.

  Portable HDD players are being widely used because they can store acoustic information such as music and provide it to users and have a large capacity for storing the acoustic information.

A conventional portable HDD player is described in Patent Document 1, for example.
JP 2003-295896 A

  In the case of the portable HDD player of Patent Document 1, various keys for a user to perform operations and settings are arranged, and a liquid crystal display device that displays setting contents and the like is arranged. This portable HDD player incorporates a battery and uses this battery as a driving power source. Further, this portable HDD player is provided with a terminal for connecting an external device.

  By connecting an external device to a terminal to which the external device is connected and operating a key provided on the external device, it is possible to reproduce music or the like desired by the user. However, the liquid crystal display device of the portable HDD player, its backlight, and the LEDs that brighten the periphery of various keys of the portable HDD player are configured so that they do not light up unless a specific key is pressed because of low power consumption. ing.

  Therefore, even when the keys of the external device are operated, the liquid crystal display device of the portable HDD player, the backlight thereof, and the LEDs that brighten the periphery of the various keys of the portable HDD player are not lit. In order to light these, it is necessary for the user to operate a specific key of the portable HDD player, which is inconvenient.

  The present invention has been made in view of such a situation, and an object thereof is to improve the convenience of an electronic device that provides stored information, such as an audio device such as a portable HDD player.

In order to achieve the above object, an electronic apparatus according to the first aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the case, a key, a liquid crystal display panel, a backlight of the liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting that the external device is operated;
Lighting means for turning on the backlight when the detecting means detects that the external device has been operated;
It is characterized by providing.

  The lighting means may turn off the backlight when a predetermined time has elapsed since the backlight was turned on.

In order to achieve the above object, an electronic apparatus according to the second aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the housing, a key, a liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting that the external device is operated;
Display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device is operated;
It is characterized by providing.

  The display control means may stop displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel.

In order to achieve the above object, an electronic apparatus according to the third aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the case, a key, a light for brightening the periphery of the key, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting that the external device is operated;
Lighting means for turning on the light when the detecting means detects that the external device is operated; and
It is characterized by providing.

  The lighting means may turn off the light when a predetermined time has elapsed since the light was turned on.

In order to achieve the above object, an electronic device according to the fourth aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the case, a key, a liquid crystal display panel, a backlight of the liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal;
Lighting means for turning on the backlight when the detecting means detects that the external device is connected to the input terminal;
It is characterized by providing.

  The lighting unit may turn off the backlight when it is determined that the external device has been removed from the input terminal based on the detection result of the detection unit.

In order to achieve the above object, an electronic device according to the fifth aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the housing, a key, a liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal;
Display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device is connected to the input terminal;
It is characterized by providing.

  The display control means may stop displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel.

In order to achieve the above object, an electronic apparatus according to the sixth aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
The casing is provided with a key, a light for brightening the periphery of the main body key, and an input terminal for connecting an external device,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal;
A lighting means for turning on the light when the detecting means detects that the external device is connected to the input terminal;
It is characterized by providing.

  The lighting unit may turn off the light when it is determined that the external device has been removed from the input terminal based on the detection result of the detection unit.

In order to achieve the above object, an electronic device according to the seventh aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the case, a key, a liquid crystal display panel, a backlight of the liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal and operated;
Lighting means for turning on the backlight when the detecting means detects that the external device is connected to the input terminal and is operated;
It is characterized by providing.

  The lighting means is configured to detect the backlight when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means or when a predetermined time has elapsed since the backlight was turned on. May be turned off.

In order to achieve the above object, an electronic device according to the eighth aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
In the housing, a key, a liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal and operated;
Display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device is connected to the input terminal and is operated;
It is characterized by providing.

  The display control means is based on the detection result of the detection means when it is determined that the external device has been removed from the input terminal or when a predetermined time has elapsed since the information was displayed on the liquid crystal panel. Information display on the liquid crystal display panel may be stopped.

In order to achieve the above object, an electronic apparatus according to the ninth aspect of the present invention provides:
A storage means for storing information and a housing containing the storage means;
The housing is provided with a key, a light for brightening the periphery of the main body key, and an input terminal for connecting an external device,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal and operated;
Lighting means for turning on the light when the detecting means detects that the external device is connected to the input terminal and is operated;
It is characterized by providing.

  The lighting means turns off the light when it is determined that the external device has been removed from the input terminal based on the detection result of the detecting means or when a predetermined time has elapsed since the light was turned on. You may let them.

  In the electronic devices according to the first to ninth aspects of the present invention described above, the information stored in the storage means may be output via the external device.

  The external device may be a remote controller of the electronic device.

  The external device may be connected to the input terminal wirelessly.

  The information may represent sound and the information may be reproduced and output.

In order to achieve the above object, an electronic device system according to a tenth aspect of the present invention includes:
Storage means for storing information, a housing incorporating the storage means, a key disposed in the housing, a liquid crystal display panel disposed in the housing, a backlight of the liquid crystal display panel, and an input for connecting to an external device A terminal, a detection unit that detects that the external device has been operated, and a lighting unit that turns on the backlight when the detection unit detects that the external device has been operated, and outputs the information Electronic equipment,
An external device connected to the input terminal and having a key;
The information is output based on an operation of a key of the electronic device or a key of the external device.

  The lighting means may turn off the backlight when a predetermined time has elapsed since the backlight was turned on.

In order to achieve the above object, an electronic device system according to an eleventh aspect of the present invention provides:
Storage means for storing information, a housing containing the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, an input terminal for connecting an external device, and the external device being operated And a display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device has been operated, and outputs the information stored in the storage means Electronic equipment to
An external device connected to the input terminal and having a key;
The information stored in the storage means is output based on the operation of the key of the electronic device or the key of the external device.

  The display control means may stop displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel.

In order to achieve the above object, an electronic device system according to a twelfth aspect of the present invention includes:
Storage means for storing information, a housing incorporating the same, a key arranged in the housing, a light for brightening the periphery of the key, an input terminal for connecting an external device, and the external device being operated A detecting means for detecting the electronic device, and a lighting means for turning on the light when the detecting means detects that the external device is operated, and an electronic device for outputting the information,
An external device connected to the input terminal and having a key;
The information is output based on an operation of a key of the electronic device or a key of the external device.

  The lighting means may turn off the light when a predetermined time has elapsed since the light was turned on.

In order to achieve the above object, an electronic device system according to a thirteenth aspect of the present invention provides:
Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, a backlight of the liquid crystal display panel, an input terminal for connecting an external device, Detecting means for detecting whether or not the external device is connected to the input terminal; and lighting means for turning on the backlight when the detecting means detects that the external device is connected to the input terminal. An electronic device that outputs the information;
An external device connected to the input terminal and having a key;
The information is output based on an operation of a key of the electronic device or a key of the external device.

  The lighting unit may turn off the backlight when it is determined that the external device has been removed from the input terminal based on the detection result of the detection unit.

In order to achieve the above object, an electronic device system according to a fourteenth aspect of the present invention provides:
Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, an input terminal for connecting an external device, and the external device serving as the input terminal Detecting means for detecting whether or not connected, and display control means for displaying information on the liquid crystal display panel when the detecting means detects that the external device is connected to the input terminal, An electronic device that outputs information stored in the storage means;
An external device connected to the input terminal and having a key;
The information stored in the storage means is output based on the operation of the key of the electronic device or the key of the external device.

  The display control means may stop displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel.

In order to achieve the above object, an electronic device system according to a fifteenth aspect of the present invention provides:
Storage means for storing information, a housing incorporating the same, a key arranged in the housing, a light for brightening the periphery of the key, an input terminal for connecting an external device, and the external device as the input terminal Detecting means for detecting whether or not connected, and an electronic device for outputting the information, comprising: lighting means for turning on the light when the detecting means detects that the external device is connected to the input terminal. Equipment,
An external device connected to the input terminal and having a key;
The information is output based on an operation of a key of the electronic device or a key of the external device.

  The lighting unit may turn off the light when it is determined that the external device has been removed from the input terminal based on the detection result of the detection unit.

In order to achieve the above object, an electronic device system according to a sixteenth aspect of the present invention provides:
Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, a backlight of the liquid crystal display panel, an input terminal for connecting an external device, Detecting means for detecting whether the external device is connected to the input terminal and operated; and when the detecting means detects that the external device is connected to the input terminal and operated, An electronic device that includes lighting means for lighting the light, and outputs the information;
An external device connected to the input terminal and having a key;
The information is output based on an operation of a key of the electronic device or a key of the external device.

  The lighting means is configured to detect the backlight when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means or when a predetermined time has elapsed since the backlight was turned on. May be turned off.

In order to achieve the above object, an electronic device system according to a seventeenth aspect of the present invention provides:
Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, an input terminal for connecting an external device, and the external device serving as the input terminal Detection means for detecting whether or not connected and operated, and a display for displaying information on the liquid crystal display panel when the detection means detects that the external device is connected to the input terminal and operated An electronic device comprising control means for outputting information stored in the storage means;
An external device connected to the input terminal and having a key;
The information stored in the storage means is output based on the operation of the key of the electronic device or the key of the external device.

  The display control means is based on the detection result of the detection means when it is determined that the external device has been removed from the input terminal or when a predetermined time has elapsed since the information was displayed on the liquid crystal panel. Information display on the liquid crystal display panel may be stopped.

In order to achieve the above object, an electronic device system according to an eighteenth aspect of the present invention provides:
Storage means for storing information, a housing incorporating the same, a key arranged in the housing, a light for brightening the periphery of the key, an input terminal for connecting an external device, and the external device as the input terminal Detecting means for detecting whether or not connected and operated, and when the detecting means detects that the external device is connected to the input terminal and operated, a lighting means for turning on the light, An electronic device that outputs the information;
An external device connected to the input terminal and having a key;
The information is output based on an operation of a key of the electronic device or a key of the external device.

  The lighting means turns off the light when it is determined that the external device has been removed from the input terminal based on the detection result of the detecting means or when a predetermined time has elapsed since the light was turned on. You may let them.

  In the electronic device system according to the tenth to eighteenth aspects of the present invention described above, the information stored in the storage means may be output via the external device.

  The external device may be a remote controller of the electronic device.

  The external device may be connected to the input terminal wirelessly.

  The information stored in the storage means may represent sound, and the information may be reproduced and output.

  According to the present invention, when the external device is operated, the backlight of the liquid crystal display panel or the light for brightening the periphery of the main body key is automatically turned on, which improves convenience.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a configuration diagram showing a portable audio device 10 and an external device 30 according to an embodiment of the first aspect of the present invention.

  The portable audio device 10 includes a storage unit 11 that stores acoustic information, a battery 12 that serves as a drive source for the entire device, a microcomputer 13 and a signal amplification unit 14, which are built in a casing. ing.

  A liquid crystal display panel (LCD) 15 and a plurality of keys 16 are arranged in the casing of the portable audio device 10. A backlight 17 is incorporated on the back surface of the liquid crystal display panel 15. In addition, an LED light 18 for brightening the periphery of the key 16 and a headphone terminal 19 as an input / output port to which the external device 30 is connected are incorporated in the casing of the portable audio device 10. When a predetermined key 16 of the portable audio device 10 is pressed, the backlight 17 and the LED light 18 of the liquid crystal display panel 15 can be turned on.

  The microcomputer 13 is a means for controlling the portable audio device 10 and includes an A / D conversion function 13a for converting an analog signal given from the external device 30 into a digital signal, and a function specified by the digital signal. The key drive function 13b that generates the same control signal as when the pressed key 16 is pressed, and the control signal generated when the key 16 is actually pressed or the control signal generated by the key drive function 13b And a key processing application function 13c for controlling the amplification factor of the amplifying unit 14 and the like. Further, the function of the microcomputer 13 is added with a lighting function 13d, which is not conventional. The lighting function 13d lights the backlight 17 and the LED light 18 of the liquid crystal display panel 15 when the digital signal converted from the analog signal by the A / D conversion function 13a indicates one of the keys 16 of the device. It is a function to let you.

  The signal amplification unit 14 has a function of amplifying the information read from the storage unit 11 with an amplification factor controlled by a control signal given from the key processing application function 13c of the microcomputer 13.

  The external device 30 is a device that adjusts the playback sound to a volume desired by the user, and includes a microcomputer 31, a signal amplification unit 32, and a voltage conversion unit 33, which are built in a casing. Yes.

  A housing of the external device 30 includes a line input terminal 34 connected to the headphone terminal 19 of the portable audio device 10, a remote control light receiving unit 36 that receives infrared rays generated by a remote controller (remote control) 35, and a plurality of keys 37. And are arranged.

  The input side of the signal amplification unit 32 is connected to the line input terminal 34, and the speaker 38 is connected to the output side of the signal amplification unit 32.

  Some of the keys 37 set the amplification factor of the signal amplifying unit 32 and others are assigned to the key 16 of the portable audio device 10. Each key 37 is connected to the microcomputer 31 and the microcomputer 31 scans which key 37 is pressed. The remote control light receiving unit 36 is also connected to the microcomputer 31 so that the operation content of the remote controller 35 is recognized by the microcomputer 31. A control signal generated by the microcomputer 31 is input to the voltage converter 33. The voltage conversion unit 33 is a circuit that generates a voltage, and generates an analog signal by changing a voltage generated according to an input control signal. The output side of the voltage converter 33 is connected to the line input terminal 34. An analog signal generated by the voltage converter 33 is input to the microcomputer 13.

Next, operations of the portable audio device 10 and the external device 30 will be described.
The user operates the key 16 of the portable audio device 10, the key 37 of the external device 30, or the remote controller 35 to select the acoustic information stored in the storage unit 11 and the volume of the reproduced sound of the selected acoustic information. Set.

  When operating the key 16 of the portable audio device 10, by first selecting and pressing the predetermined key 16, the backlight 17 and the LED light 18 of the liquid crystal display panel 15 are turned on, and the liquid crystal display panel 15. Is visible, and the area around the key 16 is brightened, which facilitates subsequent operations by the user.

  When operating the remote controller 35 to turn on the backlight 17 and the LED light 18, the key 16 of the portable audio device 10 is designated by the remote controller 35. Information on the designated key 16 is input to the microcomputer 31 via the remote control light receiving unit 36. When the key 37 of the external device 30 is used, when the key 37 assigned to the key 16 of the portable audio device 10 is pressed, information on the pressed key 37 is input to the microcomputer 31. The microcomputer 31 gives a control signal to the voltage converter 33 and generates an analog signal of a voltage indicating the key 16 corresponding to the input information from the voltage converter 33.

  The analog signal is input to the microcomputer 13 via the line input terminal 34 and the headphone terminal 19. The A / D conversion function 13a generates a digital signal corresponding to the analog signal. The key drive function 13b generates the same control signal as when the key 16 specified by the digital signal is pressed. The lighting function 13d detects that the user has selected any of the plurality of keys 16 using the remote controller 35 or the external device 30 based on the control signal generated by the key drive function 13b, and the backlight 17 And the LED light 18 is turned on.

  When operating the portable acoustic device 10 to select the acoustic information stored in the storage unit 11 and setting the volume of the reproduced sound of the selected acoustic information, the user selects and presses the predetermined key 16 . The key drive function 13b of the microcomputer 13 specifies the pressed key 16 and generates a control signal corresponding to the key 16, and the key processing application function 13c controls the inside of the portable audio device 10.

  For example, when the acoustic information stored in the storage unit 11 is selected by the pressed key 16, the storage unit 11 is controlled, the acoustic information is given to the signal amplification unit 14, and the signal amplification unit 14 is The information is converted into a reproduction signal and output. When the amplification factor in the signal amplifying unit 14 is designated by the pressed key 16, the information is given to the signal amplifying unit 14 via the key processing application function 13 c that controls the signal amplifying unit 14. The amplification factor when the signal amplifying unit 14 outputs acoustic information as a reproduction signal is set.

  When operating the external device 30 to select the acoustic information stored in the storage unit 11, the key 37 assigned to the key 16 for setting it is selected and pressed. Even when the remote controller 35 is used, the key 16 for selecting acoustic information is designated. These pieces of information are input to the microcomputer 31. The microcomputer 31 gives a control signal to the voltage converter 33 and causes the voltage converter 33 to generate an analog signal of a voltage indicating the key 16 corresponding to the input information.

  The analog signal is input to the microcomputer 13 via the line input terminal 34 and the headphone terminal 19. The A / D conversion function 13a generates a digital signal corresponding to the analog signal. The key drive function 13b generates the same control signal as when the key 16 specified by the digital signal is pressed. Based on the control signal, the key processing application function 13 c controls the storage unit 11, the acoustic information stored in the storage unit 11 is selected, and the acoustic information is given to the signal amplification unit 14. The signal amplifying unit 14 converts the acoustic information into a reproduction signal, and gives it to the speaker 38 via the signal amplifying unit 32 of the external device 30.

  When the volume of the playback sound output from the speaker 38 is adjusted by the external device 30 or the remote controller 35, the user selects the key 37 for setting the amplification factor of the signal amplification unit 32, or the key 37 is set by the remote controller 35. Is specified. These pieces of information are input to the microcomputer 31, and the microcomputer 31 sets the amplification factor of the signal amplification unit 32. Thereby, the volume of the reproduction sound output from the speaker 38 is adjusted.

  As described above, in the present embodiment, the backlight 17 and the LED light 18 are turned on simply by pressing the key 37 assigned to the key 16 of the portable audio device 10 or by designating the key 16 with the remote controller 35. Therefore, the user who operates the external device 30 or the remote controller 35 does not need to operate the key 16 of the portable audio device 10, and convenience is improved.

[Second Embodiment]
FIG. 2 is a configuration diagram showing the portable audio device 50 and the external device 70 according to the embodiment of the second aspect of the present invention.

  The portable acoustic device 50 includes a storage unit 51 that stores acoustic information, a battery 52 that serves as a drive source for the entire device, a microcomputer 53, and a signal amplification unit 54, which are built in a casing. ing.

  A liquid crystal display panel (LCD) 55 and a plurality of keys 56 are arranged on the casing of the portable audio device 50. A backlight 57 is incorporated on the back surface of the liquid crystal display panel 55. Further, an LED light 58 for brightening the periphery of the key 56 and a headphone terminal 59 as an input / output port to which the external device 70 is connected are incorporated in the casing of the portable audio device 50.

  When the external device 70 is connected to the headphone terminal 59, the information is notified to the microcomputer 53.

  Similarly to the first embodiment, when the predetermined key 56 of the portable audio device 50 is pressed, the backlight 57 and the LED light 58 of the liquid crystal display panel 55 can be turned on.

  The microcomputer 53 is a means for controlling the portable audio device 50. The functions of the microcomputer 53 are an A / D conversion function 53a for converting an analog signal given from the external device 70 into a digital signal, and a specification by the digital signal. The key drive function 53b that generates the same control signal as when the key 56 is pressed and the control signal generated when the key 56 is actually pressed or the control signal generated by the key drive function 53b And a key processing application function 53c for controlling the amplification factor and the like of the amplifying unit 54.

  Further, the function of the microcomputer 53 is provided with a connection detection function 53d that replaces the lighting function 13d of the first embodiment. The connection detection function 53d is a function for detecting that the external device 70 is connected to the headphone terminal 59 and turning on the backlight 57 and the LED light 58 of the liquid crystal display panel 55.

  The signal amplifying unit 54 has a function of amplifying the acoustic information read from the storage unit 51 as a reproduction signal with an amplification factor controlled by a control signal given from the key processing application function 53 c of the microcomputer 53.

  The external device 70 is a device that adjusts the playback sound to a volume desired by the user, and includes a microcomputer 71, a signal amplification unit 72, and a voltage conversion unit 73, which are built in a casing. Yes.

  A casing of the external device 70 includes a line input terminal 74 connected to the headphone terminal 59 of the portable audio device 50, a remote control light receiving unit 76 that receives infrared rays generated by a remote controller (remote control) 75, and a plurality of keys 77. And are arranged.

  The input side of the signal amplification unit 72 is connected to the line input terminal 74, and the speaker 78 is connected to the output side of the signal amplification unit 72.

  Some keys 77 set the amplification factor of the signal amplification unit 72 and others are assigned to the keys 56 of the portable audio device 50. Each key 77 is connected to the microcomputer 71, and the microcomputer 71 scans which key 77 is pressed. The remote control light receiving unit 76 is also connected to the microcomputer 71 so that the operation content of the remote controller 75 is recognized by the microcomputer 71. A control signal generated by the microcomputer 71 is input to the voltage converter 73.

  The voltage conversion unit 73 is a circuit that generates a voltage, and generates an analog signal by changing a voltage generated according to an input control signal. The output side of the voltage conversion unit 73 is connected to the line input terminal 74. An analog signal generated by the voltage converter 73 is input to the microcomputer 53.

  When the line input terminal 74 of the external device 70 is connected to the headphone terminal 59 of the portable audio device 50 having the above configuration, the voltage generated by the voltage conversion unit 73 is input to the microcomputer 53. The connection detection function 53d of the microcomputer 53 detects that the external device 70 is connected from the voltage input by connecting the line input terminal 74 of the external device 70 to the headphone terminal 59, and the liquid crystal display panel 55. The backlight 57 and the LED light 58 are turned on. When the external device 70 is disconnected from the headphone terminal 59, the voltage input to the headphone terminal 59 disappears. This is detected, and the backlight 57 and the LED light 58 of the liquid crystal display panel 55 are turned off to reduce power consumption. Reduce.

  The operations other than turning on and off the backlight 57 and the LED light 58 are the same as the operations of the portable audio device 10 and the external device 30 of the first embodiment, and are performed by the portable audio device 50 and the external device 70.

  As described above, in the second embodiment, when the line input terminal 74 of the external device 70 is connected to the headphone terminal 59, the backlight 57 and the LED light 58 of the liquid crystal display panel 55 are automatically turned on. As in the first embodiment, the user who operates the external device 70 or the remote controller 75 does not need to operate the key 56 of the portable audio device 50, and convenience is improved. Furthermore, in this embodiment, an operation for turning on the backlight 57 and the LED light 58 is not necessary. Further, the backlight 57 and the LED light 58 may be turned on when a signal corresponding to a key operation is input to the headphone terminal 59 in a state where it is detected that the external device 70 is connected. In this case, the backlight 57 and the LED light 58 may be turned off when it is determined that the external device 70 has been removed from the headphone terminal 59, or a predetermined time after the backlight 57 and the LED light 58 are turned on. These may be turned off when the time has elapsed.

In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible.
For example, both the backlights 17 and 57 and the LED lights 18 and 58 need not be turned on. For example, only the backlights 17 and 57 or only the LED lights 18 and 58 may be turned on.
Further, when the external devices 30 and 70 are connected to the headphone terminals 19 and 59 or when the external devices 30 and 70 are operated, the liquid crystal display panels 15 and 55 are turned on, and the external devices 30 and 70 are connected to the headphone terminals. The display of the liquid crystal display panels 15 and 55 may be stopped when a predetermined time elapses after the liquid crystal display panels 15 and 55 are displayed.

  The remote controllers 35 and 75 are for instructing the operation of the external devices 30 and 70, but the portable audio devices 10 and 50 are provided with a remote control light receiving unit, and the backlight 17, 57 and the LED lights 18 and 58 may be controlled to be turned on.

  Furthermore, the information stored in the storage units 11 and 51 and output via the external devices 30 and 70 is not limited to acoustic information, and may be other information. For example, video information may be used.

1 is a configuration diagram showing a portable audio device and an external device according to a first embodiment of the present invention. It is a block diagram which shows the portable audio equipment and external device which concern on the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,50 Portable audio equipment 11,51 Accumulator 12,52 Battery 13,53 Microcomputer 13a, 53a A / D conversion function 13b, 53b Key drive function 13c, 53c Key processing application function 13d Lighting function 53d Connection detection function 14, 54 Signal amplifier
15, 55 Liquid crystal display panel 16, 56 Key 17, 57 Backlight 18, 58 LED light 19, 59 Headphone terminal 30, 70 External device 31, 71 Microcomputer 32, 72 Signal amplification unit 33, 73 Voltage conversion unit 34, 74 Line input terminal 35,75 Remote controller 36,76 Remote control light receiving unit 37,77 Key 38,78 Speaker

Claims (44)

A storage means for storing information and a housing containing the storage means;
In the case, a key, a liquid crystal display panel, a backlight of the liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting that the external device is operated;
Lighting means for turning on the backlight when the detecting means detects that the external device has been operated;
An electronic device comprising:   The electronic device according to claim 1, wherein the lighting unit turns off the backlight when a predetermined time elapses after the backlight is turned on. A storage means for storing information and a housing containing the storage means;
In the housing, a key, a liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting that the external device is operated;
Display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device is operated;
An electronic device comprising:   The electronic device according to claim 3, wherein the display control unit stops displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel. A storage means for storing information and a housing containing the storage means;
In the case, a key, a light for brightening the periphery of the key, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting that the external device is operated;
Lighting means for turning on the light when the detecting means detects that the external device is operated; and
An electronic device comprising:   The electronic device according to claim 5, wherein the lighting unit turns off the light when a predetermined time has elapsed since the light was turned on. A storage means for storing information and a housing containing the storage means;
In the case, a key, a liquid crystal display panel, a backlight of the liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal;
Lighting means for turning on the backlight when the detecting means detects that the external device is connected to the input terminal;
An electronic device comprising:   The electronic device according to claim 7, wherein the lighting unit turns off the backlight when it is determined that the external device is removed from the input terminal based on a detection result of the detection unit. A storage means for storing information and a housing containing the storage means;
In the housing, a key, a liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal;
Display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device is connected to the input terminal;
An electronic device comprising:   10. The electronic apparatus according to claim 9, wherein the display control unit stops displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel. A storage means for storing information and a housing containing the storage means;
The housing is provided with a key, a light for brightening the periphery of the main body key, and an input terminal for connecting an external device,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal;
Lighting means for turning on the light when the detecting means detects that the external device is connected to the input terminal;
An electronic device comprising:   The electronic device according to claim 11, wherein the lighting unit turns off the light when it is determined that the external device is disconnected from the input terminal based on a detection result of the detection unit. A storage means for storing information and a housing containing the storage means;
In the case, a key, a liquid crystal display panel, a backlight of the liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal and operated;
Lighting means for turning on the backlight when the detecting means detects that the external device is connected to the input terminal and is operated;
An electronic device comprising:   The lighting means turns off the backlight when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means, or when a predetermined time has elapsed since the backlight was turned on. The electronic apparatus according to claim 13, wherein A storage means for storing information and a housing containing the storage means;
In the housing, a key, a liquid crystal display panel, and an input terminal for connecting an external device are arranged,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal and operated;
Display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device is connected to the input terminal and is operated;
An electronic device comprising:   The display control means detects the liquid crystal when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means, or when a predetermined time has elapsed since the information was displayed on the liquid crystal panel. 16. The electronic apparatus according to claim 15, wherein display of information on the display panel is stopped. A storage means for storing information and a housing containing the storage means;
The casing is provided with a key, a light for brightening the periphery of the main body key, and an input terminal for connecting an external device,
An electronic device that outputs the information by operating an external device connected to the key or the input terminal,
Detecting means for detecting whether or not the external device is connected to the input terminal and operated;
Lighting means for turning on the light when the detecting means detects that the external device is connected to the input terminal and is operated;
An electronic device comprising:   The lighting means turns off the light when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means or when a predetermined time has elapsed since the light was turned on. The electronic device according to claim 17.   The electronic device according to claim 1, wherein the information stored in the storage unit is output via the external device.   The electronic device according to claim 1, wherein the external device is a remote controller of the electronic device.   21. The electronic device according to claim 1, wherein the external device is wirelessly connected to the input terminal.   The electronic device according to any one of claims 1 to 21, wherein the information represents sound and reproduces and outputs the information. Storage means for storing information, a housing incorporating the storage means, a key disposed in the housing, a liquid crystal display panel disposed in the housing, a backlight of the liquid crystal display panel, and an input for connecting to an external device A terminal, a detection unit that detects that the external device has been operated, and a lighting unit that turns on the backlight when the detection unit detects that the external device has been operated, and outputs the information Electronic equipment,
An external device connected to the input terminal and having a key;
An electronic device system, wherein the information is output based on an operation of a key of the electronic device or a key of the external device.   The electronic device system according to claim 23, wherein the lighting unit turns off the backlight when a predetermined time has elapsed since the backlight was turned on. Storage means for storing information, a housing containing the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, an input terminal for connecting an external device, and the external device being operated And a display control means for displaying information on the liquid crystal display panel when the detection means detects that the external device has been operated, and outputs the information stored in the storage means Electronic equipment to
An external device connected to the input terminal and having a key;
An electronic device system that outputs information stored in the storage means based on an operation of a key of the electronic device or a key of the external device.   26. The electronic device system according to claim 25, wherein the display control unit stops displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel. . Storage means for storing information, a housing incorporating the same, a key arranged in the housing, a light for brightening the periphery of the key, an input terminal for connecting an external device, and the external device being operated A detecting means for detecting the electronic device, and a lighting means for turning on the light when the detecting means detects that the external device is operated, and an electronic device for outputting the information,
An external device connected to the input terminal and having a key;
An electronic device system that outputs the information based on an operation of a key of the electronic device or a key of the external device.   28. The electronic device system according to claim 27, wherein the lighting means turns off the light when a predetermined time has elapsed since the light was turned on. Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, a backlight of the liquid crystal display panel, an input terminal for connecting an external device, Detecting means for detecting whether or not the external device is connected to the input terminal; and lighting means for turning on the backlight when the detecting means detects that the external device is connected to the input terminal. An electronic device that outputs the information;
An external device connected to the input terminal and having a key;
An electronic device system, wherein the information is output based on an operation of a key of the electronic device or a key of the external device.   30. The electronic device system according to claim 29, wherein the lighting unit turns off the backlight when it is determined that the external device has been removed from the input terminal based on a detection result of the detection unit. . Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, an input terminal for connecting an external device, and the external device serving as the input terminal Detecting means for detecting whether or not connected, and display control means for displaying information on the liquid crystal display panel when the detecting means detects that the external device is connected to the input terminal, An electronic device that outputs information stored in the storage means;
An external device connected to the input terminal and having a key;
An electronic device system that outputs information stored in the storage means based on an operation of a key of the electronic device or a key of the external device.   32. The electronic device system according to claim 31, wherein the display control unit stops displaying information on the liquid crystal display panel when a predetermined time has elapsed since the information was displayed on the liquid crystal display panel. . Storage means for storing information, a housing incorporating the same, a key arranged in the housing, a light for brightening the periphery of the key, an input terminal for connecting an external device, and the external device as the input terminal Detecting means for detecting whether or not connected, and an electronic device for outputting the information, comprising: lighting means for turning on the light when the detecting means detects that the external device is connected to the input terminal. Equipment,
An external device connected to the input terminal and having a key;
An electronic device system, wherein the information is output based on an operation of a key of the electronic device or a key of the external device.   34. The electronic device system according to claim 33, wherein the lighting unit turns off the light when it is determined that the external device has been removed from the input terminal based on a detection result of the detection unit. Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, a backlight of the liquid crystal display panel, an input terminal for connecting an external device, Detecting means for detecting whether the external device is connected to the input terminal and operated; and when the detecting means detects that the external device is connected to the input terminal and operated, An electronic device that includes lighting means for lighting the light, and outputs the information;
An external device connected to the input terminal and having a key;
An electronic device system, wherein the information is output based on an operation of a key of the electronic device or a key of the external device.   The lighting means turns off the backlight when it is determined that the external device has been removed from the input terminal based on the detection result of the detecting means or when a predetermined time has elapsed since the backlight was turned on. 36. The electronic device system according to claim 35, wherein Storage means for storing information, a housing incorporating the same, a key disposed in the housing, a liquid crystal display panel disposed in the housing, an input terminal for connecting an external device, and the external device serving as the input terminal Detection means for detecting whether or not connected and operated, and a display for displaying information on the liquid crystal display panel when the detection means detects that the external device is connected to the input terminal and operated An electronic device comprising control means for outputting information stored in the storage means;
An external device connected to the input terminal and having a key;
An electronic device system that outputs information stored in the storage means based on an operation of a key of the electronic device or a key of the external device.   The display control means detects the liquid crystal when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means or when a predetermined time has elapsed since the information was displayed on the liquid crystal panel. 38. The electronic device system according to claim 37, wherein display of information on the display panel is stopped. Storage means for storing information, a housing incorporating the same, a key arranged in the housing, a light for brightening the periphery of the key, an input terminal for connecting an external device, and the external device as the input terminal Detecting means for detecting whether or not connected and operated, and when the detecting means detects that the external device is connected to the input terminal and operated, a lighting means for turning on the light, An electronic device that outputs the information;
An external device connected to the input terminal and having a key;
An electronic device system, wherein the information is output based on an operation of a key of the electronic device or a key of the external device.   The lighting means turns off the light when it is determined that the external device has been removed from the input terminal based on the detection result of the detection means or when a predetermined time has elapsed since the light was turned on. 40. The electronic device system according to claim 39.   41. The electronic device system according to claim 23, wherein the information stored in the storage unit is output via the external device.   The electronic device system according to any one of claims 23 to 41, wherein the external device is a remote controller of the electronic device.   43. The electronic device system according to claim 23, wherein the external device is wirelessly connected to the input terminal. 44. The electronic device system according to claim 23, wherein the information stored in the storage means represents sound and reproduces and outputs the information.

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