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WO2001011867A9 - Procede et dispositif de programmation d'enregistrement pour magnetoscopes - Google Patents

Procede et dispositif de programmation d'enregistrement pour magnetoscopes

Info

Publication number
WO2001011867A9
WO2001011867A9 PCT/US2000/022052 US0022052W WO0111867A9 WO 2001011867 A9 WO2001011867 A9 WO 2001011867A9 US 0022052 W US0022052 W US 0022052W WO 0111867 A9 WO0111867 A9 WO 0111867A9
Authority
WO
WIPO (PCT)
Prior art keywords
program
programming
data
recording device
commands
Prior art date
Application number
PCT/US2000/022052
Other languages
English (en)
Other versions
WO2001011867A2 (fr
WO2001011867A3 (fr
Inventor
Wing P Leung
Andrew Duncan
Original Assignee
Gemstar Dev Corp
Wing P Leung
Andrew Duncan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gemstar Dev Corp, Wing P Leung, Andrew Duncan filed Critical Gemstar Dev Corp
Priority to AU66347/00A priority Critical patent/AU6634700A/en
Publication of WO2001011867A2 publication Critical patent/WO2001011867A2/fr
Publication of WO2001011867A3 publication Critical patent/WO2001011867A3/fr
Publication of WO2001011867A9 publication Critical patent/WO2001011867A9/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4147—PVR [Personal Video Recorder]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4113—PC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/4227—Providing Remote input by a user located remotely from the client device, e.g. at work
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47214—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

Definitions

  • This invention relates to methods and apparatus for programming electronic devices and in particular to methods and apparatus for programming VCRs using infrared light.
  • VCRs with programmable recording capabilities have traditionally not been a trivial task.
  • VCRs with programmable recording capabilities first appeared in the marketplace, many VCR users found that they were incapable of using the programming facilities built into their VCRs.
  • the fact that many users were not even able to properly set the clock on their VCRs underscores the importance of the problem. Setting the VCR clock is a necessary precondition for recording a desired program at a given time.
  • VCRs While a significant improvement, on screen programming typically provides no clue which programs are being recorded, only to the time, channel, and duration of the recording.
  • Several approaches to provide both on screen programming and program information have been designed.
  • One approach is that taken by VCRs, televisions, or other television related products incorporating the GUIDE Plus+TM on screen guide for recording developed by Gemstar Development Corporation.
  • VCRs equipped with a GUIDE Plus ⁇ TM on screen guide display an on screen matrix of program listings. The viewer, using a remote control, may then select a particular program from the grid and then press a record button on their remote.
  • the GUIDE Plus+TM system may then automatically record the selected program when it airs.
  • VCR Plus+TM is a solution incorporating VCR programming with program information.
  • VCR Plus+TM is a program listing, such as from a newspaper, magazine, or web site. If the program listing contains VCR Plus+TM Pluscode+TM numbers and the viewer has a VCR equipped with a VCR Plus+TM system, the viewer may enter the VCR Plus+TM number into their VCR and their VCR will be programmed to record the selected program when it airs.
  • VCRs not equipped with either the GUIDE Plus+TM or VCR Plus+TM systems .
  • a viewer using a VCR Plus+TM system may enter the VCR Plus+TM numbers incorrectly, thereby recording the wrong program.
  • the present invention discloses improved programming methods and apparatus for electronic systems, particularly for VCRs and other recording devices.
  • programming data is communicated to a data transfer device.
  • the data transfer device interprets the programming data received and communicates data commands, using a communication method such as an infrared data stream, to a device to be programmed.
  • the data transfer device may translate the data received into a time, channel, and duration to be recorded.
  • the transfer device may then translate the received time, channel, and duration data into a set of commands, which are compatible with the device to be programmed, prior to communicating the commands to the device to be programmed.
  • commands for the recording device that is to be programmed can be downloaded directly into the data transfer device.
  • Figure 1A is a graphical representation of an exemplary embodiment of the present invention in which a personal computer is used to communicate programming data to a data transfer device.
  • Figure IB is a flow diagram of a process as may be used with the exemplary embodiment illustrated in Figure 1 A.
  • Figure 2A is a graphical representation of an exemplary embodiment of the present invention in which a telephone answering machine is used to communicate programming data to a data transfer device.
  • Figure 2B is a flow diagram of a process as may be used with the exemplary embodiment of the invention illustrated in Figure 2 A.
  • Figure 3 is a block diagram of the circuitry which may comprise a data transfer device according to an embodiment of the present invention, such as illustrated in figure 2.
  • Figure 4 A is a graphical representation of a computer mouse, which may be used as a data transfer device, according to embodiments of the present invention.
  • Figure 4B is a flow diagram of a process, according to embodiments of the present invention, incorporating the computer mouse illustrated in Figure 4A.
  • FIG. 5 is a flow diagram illustrating exemplary commands which may be sent to a VCR (Video Cassette Recorder) via an IR (Infrared) Link in order to program a VCR recording.
  • VCR Video Cassette Recorder
  • IR Infrared
  • Figure 1A is a graphical representation of an exemplary embodiment of the present invention in which a personal computer is used to communicate programming data to a data transfer device.
  • personal computer (PC) 101 displays a listing ofprograms that may be recorded on its monitor 103. The user then may select a program to record from the listings appearing on monitor 103. Such program listings may be found in a web based GUIDE Plus+TM available from an Internet website.
  • the data representing that program is converted into a series of dual tone multiple frequency (DTMF) tones.
  • the DTMF tones are then sent to the speaker 105 of the PC.
  • the tones are then received in a DTMF receiver 109.
  • the DTMF receiver 109 then converts the DTMF tones, representing the Channel Date Time and Length (CDTL) of a program to be recorded, into a series of commands.
  • the series of commands are then broadcast from the data transfer device, in this case a DTMF receiver 109, to a VCR or other recording device 113.
  • the series of commands broadcast from the data transfer device program the recording device 113 to record the desired program.
  • the DTMF receiver includes a timer and transmits on and off, channel change, record and stop commands at the appropriate time based on the received CDTL information. If a tuner outside the recording device is used, the DTMF receiver transmits channel change commands to the outside tuner based on the CDTL information.
  • the DTMF receiver can be programmed with multiple recordings.
  • the DTMF receiver must be programmed to know what brand of VCR or other recording device it will produce IR commands for.
  • the DTMF receiver with IR blaster 109 must translate the program data received from the PC via the DTMF tones into such infrared (IR) commands as may be recognized by the VCR or other recording device, in order to program the recording device.
  • IR infrared
  • Figure IB is a flow diagram of a process as may be used with the exemplary embodiment illustrated in Figure 1 A.
  • the process begins in 121 when the user pulls up a web program guide on their PC.
  • a web program guide may display a variety ofprograms and their time listings. Typically, the programs are listed by time listing but may be rearranged to be listed in a variety of other ways, for example, by channel or theme.
  • step 123 the user will then select a program on the electronic program guide displayed on their PC. Once the program the user desires to record has been selected, the user confirms, in step 125, that the selected program is the one to record.
  • the PC will then send out information, such as CDTL or GUIDE Plus+TM code information, to the DTMF receiver using DTMF tones generated by the speaker system within the PC 127.
  • the DTMF receiver decides if it received the proper information in block 129.
  • the DTMF receiver makes the decision of whether the information is proper by a variety of methods.
  • the DTMF coding may contain a variety of error correcting and/or error detecting codes.
  • the DTMF receiver provides an indication to the user, such as a beep, if the receiver properly received the information sent to it. If the receiver did not receive the proper information, the user may go back to step 125 and select the program to record again.
  • step 131 the user activates the DTMF receiver to program the VCR or other recording device 113.
  • the user carries the DTMF receiver with the IR blaster 109 to the area where the VCR or other recording device 113 is present.
  • the user then activates the DTMF receiver to generate a set of IR commands 111 with IR blaster 109 to program the VCR or other recording device 113 in order to record the programs selected.
  • the sequence of programming may be observed by displaying the VCR programming on a connected television (not shown).
  • FIG 2 A is a graphical representation of an exemplary embodiment of the present invention, in which a telephone answering machine is used to communicate programming data to a data transfer device.
  • a DTMF receiver with IR blaster 207 is placed within receiving distance of a telephone with a telephone answering machine 201.
  • a viewer selects a program to be viewed from any suitable source such as a newspaper or website.
  • the user may then calls the telephone with the answering machine 201 and once the answering machine has completed its answering machine message, the keys in a code, such as a Pluscode+TM code, which the user has determined corresponded to the program to be recorded.
  • DTMF tones 205 are generated by the telephone system and are played through the answering machine speaker 203.
  • the DTMF receiver with IR blaster 207 is within range of the answering machine 201, the DTMF tones generated by the user keying in numbers program the DTMF receiver 207.
  • the user transmits a particular sequence of DTMF tones on their telephone, which causes the DTMF receiver to program the VCR or other recording device 209 using its infrared (IR) blaster.
  • IR infrared
  • the DTMF receiver with IR blaster may be set to automatically generate an IR blaster.
  • IR programming sequence for a VCR or other recording device 209 after receiving a valid sequence of programming DTMF tones.
  • the DTMF receiver Once the DTMF receiver was programmed by the DTMF tones 205 being entered by the viewer who had called the answering machine, the DTMF receiver then translates the DTMF tones 205, representing the program to be recorded, into a sequence of IR 211 commands, which program the VCR or other recording device to record the desired program.
  • DTMF receiver with IR blaster 207 includes a timer and send on and off and channel change commands at the appropriate time based on the
  • FIG 2B is a flow diagram of a process as may be used with the exemplary embodiment of the invention illustrated in Figure 2 A.
  • the process of remotely programming a user's NCR or other recording device begins in step 221 when the user dials into his or her answering machine.
  • the answering machine picks up the call and, at the end of the greeting message, the answering machine asks the caller to start recording.
  • the caller will enter 82775876543#6543#, in which 8277587 is the heading and corresponds to VCR Plus on the keypad.
  • 6543 is the GUIDE Plus+TM code for the program to be recorded.
  • the VCR Plus+TM code will vary according to the program desired to be recorded.
  • the VCR Plus+TM code is then re-entered in step 225 to assure reliable reproduction of the VCR Plus+TM code.
  • step 227 the two entered VCR Plus+TM codes are compared. If the two Plus match, it is assumed that the codes are correct.
  • step 229 the receiving unit will sound one long beep to acknowledge the correctness of the VCR Plus+TM codes.
  • step 233 a second VCR Plus ⁇ TM code is entered. If another VCR Plus+TM code is to be entered, the caller proceeds to step 225 to enter the additional VCR Plus+TM code. The process then proceeds normally from step 225 according to the flow diagram of Figure 2B.
  • step 233 If, in step 233, a second VCR Plus+TM code is not to be entered, then the process ends in step 237. If the two entered VCR Plus+TM codes checked against each other in step 227 have not been received correctly, in step 231 , a series of beeps warn the caller that the programming has not been successful. If the caller knows that the programming has not been successful, they may try again to accomplish the proper entry by returning to step 225. If in step 235, the caller decides that they do not wish to attempt to program their VCR again, the process ends in step 237.
  • FIG. 3 is a block diagram of circuitry, which exemplarily comprises a data transfer device, according to the embodiment of the present invention illustrated in Figure 2.
  • the data transfer device illustrated in Figure 3 is divided generally into two sections.
  • Section 301 is the DTMF data encoding and confirmation section.
  • Section 303 is the IR remote control and LCD section.
  • a microphone 305 receives DTMF tones and couples the DTMF tones into amplifier 307.
  • Amplifier 307 amplifies the DTMF tones and couples the amplified tones to a DTMF decoder 309.
  • the DTMF decoder decodes the DTMF tones and provides them to a microcontroller 311, located in the IR remote control and LCD section 303.
  • the microcontroller stores the received tones in a memory (not shown) for later decoding. Once the last DTMF tone from the decoder 309 has been received by the microcontroller 311 , the microcontroller translates the received DTMF code into the time, channel, and duration of a program to be recorded (the DTMF code may also optionally include other information such as recording speed). Once the microcontroller has translated the tones into a program to be recorded, it then translates the program to be recorded into a series of commands for operating the user's recording device.
  • the IR blaster can accept the string of infrared commands from the microcontroller and produce the infrared, 319, commands necessary to program the user's recording device to record the desired program.
  • the IR remote control and LCD section 303 also comprises an LCD 313 and a keypad 315.
  • the LCD has a variety of possible uses, such as providing a user display from which a user may select the brand of recording device to be controlled. LCD 313 may also display recording times in order to confirm the recording of the proper program.
  • the keypad 315 also has a variety of uses. For example, the keypad may provide an entry means for a user to enter the brand of recording device that they have. The brand of recording device will dictate the protocol of the IR codes emitted by the data transfer device (e.g. 109, 207). Since most infrared control devices have their own control protocol and commands, it is important to be able to select the proper command set for the device to be programmed by the infrared commands 319 emitted from the data transfer device illustrated in Figure 3.
  • Microcontroller 311 interfaces with a buffer 321.
  • Thebuffer321 in turn provides a driving wave form for piezo-beeper 323.
  • the microcontroller 311 sends wave forms representing sound to the buffer 321 and thereby control the type of sound emitted from the piezo-beeper 323.
  • the piezo-beeper 323 also may be used in a variety of ways. Piezo-beeper 323 may be used to alert the user to the acceptance of keystrokes on the keypad 315 and/or to inform a user that the data transfer device has completed its programming of the recording device. Piezo- beeper 323 may be activated with a series of short tones indicating that an error has occurred and the DTMF tones received by microphone 305 could not be properly decoded by the microcontroller 311. Piezo-beeper 323 may also be used to confirm that the sequence of DTMF tones were received without error.
  • a string of DTMF tones can be checked for errors in a variety of ways, including, but not limited to, the use of error detecting codes, and repeated entry of the DTMF codes by the user. Multiple methods of coding for error detection are well known in the art.
  • FIG 4A is a graphical representation of a computer mouse used as a data transfer device, according to an embodiment of the present invention.
  • a mouse 407 is coupled to a PC 401 via an electrical cord 405. The user then observes data on the monitor and downloads data from the PC to the mouse 407.
  • the exemplary mouse 407 is equipped with an RJ11 connector 411 which will enable the cord 405 from the PC 401 to be decoupled from the mouse 407 (other connectors may be substituted).
  • the cord 405 terminates in an RJ11 connection, which then couples to the RJ11 connection 411 of the mouse.
  • the mouse can be a wireless mouse, such as an infrared or radio frequency mouse.
  • the RJ11 coupling comprises a connector plug 409 and receptacle 411.
  • An IR emitter 413 of the mouse 407 may be used to communicate IR commands to the recording device.
  • a user can call up a website displaying a grid or other listing of television programming. When the user finds a program that they wish to record, they then select that program from the grid. The user then selects the type of device to be programmed, for example, a VCR.
  • the personal computer 401 then translates the data defining the program to be recorded into commands that can be recognized by the particular brand of recording device to be controlled.
  • the commands generated by the PC 401 to program the recording are then sent from the PC 401 through the attached cord to the mouse 407.
  • the mouse 407 is then be detached, using the RJ11 connector, and placed near the recording device to be programmed.
  • the user then clicks a button on the mouse, and the IR emitter 413 send the infrared commands, using the protocol familiar to the recording device to be programmed, to the recording device.
  • programming for a multitude of infrared controlled devices can be downloaded into a mouse 407 and then the mouse transported to the electronic device.
  • the mouse 407 can then be triggered to program the recording of a desired program.
  • the mouse contains a clock. The mouse is then left near a VCR and will generate record commands as they occur. In this manner, instead of programming the device, the mouse serves as a real time controller. The mouse issues recording commands thereby recording and changing channels as needed.
  • FIG. 4B is a flow diagram of a process, according to embodiments of the present invention, incorporating the computer mouse illustrated in Figure 4 A.
  • the process begins when the user accesses a web based electronic program guide (EPG) and selects programs to be recorded. Once the user has selected the programs to be recorded, the user can proceed to step 423.
  • scheduling information is stored in the PC and also downloaded, via the mouse cable and RJ11 connector, to the memory inside the mouse.
  • step 425 the user disconnects the RJ11 cable from the mouse and brings the mouse within close proximity of the recording device. Once the mouse is in a close proximity to the recording device, step 427 can proceed.
  • Figure 5 is a flow diagram illustrating exemplary commands sent to a VCR via an IR link in order to program a VCR recording.
  • Command 501 turns on the recording device.
  • Command 503 instructs the recording device to enter the setup menu.
  • step 505 the channel, date, time and length of program information is sent to the recording device.
  • step 507 the recording speed is set.
  • step 509 setup is exited.
  • step 511 the power is turned off to the recording device has been programmed.
  • the examples given in this disclosure are typically directed to the process of recording a program on a recording device such as a VCR.
  • inventive concept herein can be applicable to other devices beyond recording devices such as VCRs.
  • any type of electronic device which can be programmed using IR commands can be programmed utilizing the inventive concepts herein disclosed.
  • VCR has been used extensively as an example of a preferred embodiment, which will be familiar to those skilled in the art.
  • the infrared programming has been selected as a means for communicating commands to an electronic device.
  • Infrared control of electronic devices such as VCRs is common, and so likely to be familiar to those skilled in the art.
  • Those skilled in the art will also recognize that any type of transfer medium can be used in lieu of an IR connection.
  • other methods such as but not limited to: visible light, radio waves, and sound may be used.
  • the embodiments selected herein have been selected to teach the inventive concepts disclosed and not to limit them to the precise form disclosed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Selective Calling Equipment (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

La présente invention concerne des procédés destinés à transférer des données de programmation vers des dispositifs électroniques, tels que des magnétoscopes. Un dispositif tel qu'un ordinateur personnel peut être utilisé pour sélectionner des données de programmation à partir d'un site Web affichant une liste contenant un programme télévisé à enregistrer. L'ordinateur personnel peut alors communiquer ces données vers un dispositif de transfert au moyen d'une DTMF (double tonalité multi-fréquence) de manière à communiquer avec un dispositif de transfert de données. Ce dispositif de transfert de données peut alors accepter les commandes en provenance du PC et les traduire en commandes infrarouges pour programmer le magnétoscope. L'utilisateur peut ainsi déplacer le dispositif de transfert vers le magnétoscope et lancer un transfert de données. Le dispositif de transfert de données peut également recevoir des commandes en provenance d'un téléphone à clavier couplé à un répondeur automatique de manière à produire les tonalités DTMF et programmer le dispositif de transfert de données. Celui-ci peut alors servir à produire des commandes infrarouges destinées à programmer le magnétoscope de l'utilisateur ou un autre dispositif d'enregistrement. Par ailleurs, le dispositif de transfert de données peut être intégré à une souris d'ordinateur amovible.
PCT/US2000/022052 1999-08-09 2000-08-09 Procede et dispositif de programmation d'enregistrement pour magnetoscopes WO2001011867A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU66347/00A AU6634700A (en) 1999-08-09 2000-08-09 Method and apparatus for programming of a vcr recording

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US14893099P 1999-08-09 1999-08-09
US60/148,930 1999-08-09
US14837899P 1999-08-11 1999-08-11
US60/148,378 1999-08-11

Publications (3)

Publication Number Publication Date
WO2001011867A2 WO2001011867A2 (fr) 2001-02-15
WO2001011867A3 WO2001011867A3 (fr) 2001-08-02
WO2001011867A9 true WO2001011867A9 (fr) 2002-07-11

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Country Status (2)

Country Link
AU (1) AU6634700A (fr)
WO (1) WO2001011867A2 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056070A (en) * 1988-06-06 1991-10-08 Sony Corporation Timer programming apparatus
US5307173A (en) * 1988-12-23 1994-04-26 Gemstar Development Corporation Apparatus and method using compressed codes for television program record scheduling
JP2802813B2 (ja) * 1990-05-18 1998-09-24 橋本コーポレイション 株式会社 テレビ等の個人別番組の表示装置
US5293357A (en) * 1990-09-10 1994-03-08 The Superguide Corporation Method and apparatus for controlling a television program recording device
AU4141296A (en) * 1994-11-01 1996-05-23 Gemstar Development Corporation Telephone apparatus and methods using compressed codes
JP3553607B2 (ja) * 1995-10-02 2004-08-11 スターサイト テレキャスト インコーポレイテッド テレビジョンスケジュール情報を供給するシステム及び方法
US6195501B1 (en) * 1996-03-28 2001-02-27 Intel Corporation Computer control of a video cassette recorder using wireless communication and a vertical blanking interval triggering
JP3911047B2 (ja) * 1996-04-30 2007-05-09 ソニー株式会社 録画予約制御システム及び録画予約制御方法

Also Published As

Publication number Publication date
WO2001011867A2 (fr) 2001-02-15
WO2001011867A3 (fr) 2001-08-02
AU6634700A (en) 2001-03-05

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