WO2002047379A1 - Programmation d'un enregistreur video - Google Patents

Programmation d'un enregistreur video Download PDF

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Publication number
WO2002047379A1
WO2002047379A1 PCT/AU2001/001555 AU0101555W WO0247379A1 WO 2002047379 A1 WO2002047379 A1 WO 2002047379A1 AU 0101555 W AU0101555 W AU 0101555W WO 0247379 A1 WO0247379 A1 WO 0247379A1
Authority
WO
WIPO (PCT)
Prior art keywords
program
video appliance
identifier
receiving
broadcast
Prior art date
Application number
PCT/AU2001/001555
Other languages
English (en)
Inventor
Peter Vogel
Original Assignee
Right Hemisphere Pty Ltd
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 Right Hemisphere Pty Ltd filed Critical Right Hemisphere Pty Ltd
Priority to AU2002218067A priority Critical patent/AU2002218067A1/en
Publication of WO2002047379A1 publication Critical patent/WO2002047379A1/fr

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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
    • H04N21/43—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
    • H04N21/43—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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0887—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals

Definitions

  • the present invention relates to systems for controlling video recorder systems and in particular to systems for presetting domestic video recorders for unattended recording of desired programs.
  • VCRs Video cassette recorders
  • timer means which automatically start the machine recording a preselected channel at a preselected time and date and also stops recording after a preselected time has elapsed.
  • CDTL channel, date, time, and program length
  • PDC Programme Delivery Control
  • an on-screen TV guide for example a teletext page representing a TV guide.
  • the PDC label can be associated with the TV guide entry of interest and automatically stored with a single command from the user.
  • This system is a great improvement on the prior art, however it suffers some limitations. For example, unless an on-screen TV guide with the requisite PDC labels is available, the user still has to identify the program by time, channel and so on.
  • the g-code system suffers some limitations, the most serious being that recording is controlled by the scheduled time of the program, so if the program starts or ends at a different time, the recording may not include all the desired material.
  • the system also relies on the clock and calendar of the VCR being correctly set for successful operation.
  • the g-code number can be used to set the time, date, channel and length information required by PDC.
  • the g-code number is decompressed in the controller to yield channel, time and date data suitable for matching with PDC labels. While this system is advantageous in some respects, it has some shortcomings. For example, the method of generating the g-code for guide publication and subsequently decoding it for translation to CDTL required by PDC is relatively complex. Also, it may be desirable in some cases to use program identifiers in the guide which do not convey the CDTL in an encoded form, as this may allow for shorter or more memorable identifiers to be used.
  • the present invention provides a method of unattended recording of programs including the steps of receiving a program code from a user input device and storing this code in memory means, receiving a signal identifying a program which is being broadcast or which is about to start being broadcast, comparing the identifying signal to the stored program code, and if certain prescribed comparison conditions are met, controlling recording or display of the broadcast program.
  • a controller for unattended recording of programs including means for receiving a program code from a user input device and storing this code in memory means, means for receiving a signal identifying a program which is being broadcast or which is about to start being broadcast, means for comparing the identifying signal to the stored program code, and a controller adapted to control recording or display of the broadcast program according to the result of the comparison.
  • means for unattended recording of programs including the means for receiving a program code, which is a compressed representation of the time, date, chamiel and length of a program, from a user input device; means for storing this identifier in memory means; means for receiving a signal identifying a program which is being broadcast or which is about to start being broadcast; means for comparing the identifying signal to the stored program code; and controller means adapted to start recording or display of the broadcast program according to the result of the comparison.
  • a program code which is a compressed representation of the time, date, chamiel and length of a program
  • the program code is compared to the identifying signal in the format in which it is entered, without algorithmic conversion to a different format.
  • the program code comprises an alphabetic, numeric, or alphanumeric string that is not derived algorithmically from the time, date, channel or length information associated with the program to be recorded.
  • the program code comprises an alphabetic, numeric, or alphanumeric string that is derived algorithmically from the time, date, channel or length information associated with the program to be recorded.
  • the program code comprises an alphabetic, numeric, or alphanumeric string that is an abbreviation of the name of the program to be recorded.
  • the code for nominating today's episode of "Seinfeld” may be “S", tomorrow's "S2” while “ suddenly Susan” would be denoted “SS”.
  • the program code comprises an alphabetic, numeric, or alphanumeric string that is not derived algorithmically from the time, date, channel or length information associated with the program to be recorded but is assigned by an editor.
  • codes can be assigned on the basis of perceived popularity of the program, so that more popular programs have shorter numbers or strings to enter.
  • the most popular program of the week is assigned the number "1", the next most popular "2" and so on.
  • Other characters can be added to indicate the same program next week, for example, "1+" can be used to indicate next week's "ER”.
  • choice of program codes can be based on a broadcaster's or sponsor's willingness to pay a fee for a more favorable, or shorter, number.
  • a method of unattended recording of programs including the steps of receiving a program code, which is a compressed representation of the time, date, channel and length of a program, from a user input device and storing this identifier in memory means; receiving a signal identifying a program which is being broadcast or which is about to start being broadcast; comparing the identifying signal to the stored program code; and if certain prescribed comparison conditions are met, starting recording or display of the broadcast program.
  • This embodiment has the advantage that the same program code utilised by this invention can be used to convey CDTL information to other, prior art, types of recording programmers, maintaining compatibility and increasing the utility of guides printed with numbers such as g-codes.
  • the inventive concept is extended to automatically record the same- named program every day, every week or whenever the program of that name is repeated.
  • the step of receiving a signal identifying a program includes the sub-steps of receiving an identifier which includes at least a first part which matches at least part of the code entered by the user and a second part which includes a representation of the program name.
  • the system On receipt, as well as matching the received signal with the previously-entered code, the system stores in memory at least the name associated with the received identifier. Subsequently, this stored name is compared to the name received as part of a program identifier, and if certain conditions are met, the program is recorded.
  • this repeat- recording function is achieved by storing a static program label instead of the aforementioned program name.
  • the static program label comprises data which uniquely maps to the name of the program associated with the stored code, and will hence be the same value each time the same-named program is broadcast.
  • the invention can also include the steps of erasing stored codes or stored names from memory, automatically or under user instruction.
  • multiple codes are stored in memory so that several programs can be scheduled for recording.
  • multiple program names can be stored for facilitating scheduling of multiple programs to be recorded repeatedly.
  • the user enters the program code using keys on a remote control handset.
  • the user enters the program code by selecting a program item from an on-screen television guide.
  • the user enters the program code by selecting a program item from a website. In another embodiment of the invention, the user enters the program code using keys on an alphanumeric keyboard.
  • the user enters the program code by speaking.
  • the program code is automatically entered by scanning optically from a printed guide.
  • the user enters the program code by selecting a program identifier from a list of available program identifiers displayed on a visual device, for example a CRT or liquid crystal display.
  • the program code entered by the user is displayed for confirmation on a visual device, for example a CRT or liquid crystal display.
  • the invention further comprises the steps of looking up a table which maps the program code entered by the user to a program name and displaying the results of the lookup on a visual device, for example a CRT or liquid crystal display.
  • a visual device for example a CRT or liquid crystal display.
  • the program code entered by the user is a string of characters shown in association with a program guide.
  • the program code entered by the user is a string of characters shown in association with a program guide plus one or more characters added in a prescribed fashion.
  • the guide includes g-code numbers
  • the user of the present invention can enter the g-code number plus a leading 0.
  • the g-code may be scrambled in some way, for example by entering the digits in reverse order. This may be desirable in cases where it is beneficial to differential between a g-code system and the system of this invention.
  • the received identifying signal comprises part of a received broadcast program.
  • the identifying signal is encoded as data during the vertical retrace interval of a television signal.
  • the received identifying signal comprises part of a received broadcast program and consists of identifying signals pertaining to the program of which the signal is part. In other embodiments, the received identifying signal comprises part of a received broadcast program and comprises identifying signals pertaining to programs being broadcast on channels other than the one conveying the identifying signals.
  • the received identifying signal is received from a station which transmits identifying signals related to a plurality of broadcast channels.
  • the identifying signals are generated by people monitoring television programs in real time.
  • the received identifying signal is received from a station which transmits identifying signals related to a plurality of broadcast channels and the signal is conveyed by means of a signal that is not conveyed by the same medium as the television broadcasts.
  • the identifying signals may be received from a radio transmission or an Internet connection and be used to control recording of programs received via cable television.
  • the prescribed comparison condition is equality. That is, the received signal identifying a program contains the same data as was entered by the user and stored as the program code.
  • the comparison condition is that the stored code is a subset of the received identifier. That is, the received identifier may include additional data beyond what is required to match the stored code with the received identifier.
  • the identifying codes received comprise a compressed representation of the program channel, time and date but not length. This allows for more compact identifiers whilst not diminishing the functionality of the system, since the length information is not required, the receipt of a new program identifier for the channel being recorded signaling end of recording unless the new program is also queued for recording.
  • the invention also includes the steps of receiving content control signals which identify certain types of program content and, according to configurations established by the user, controlling recording or viewing of program segments of certain types.
  • This extension of the inventive concept is particularly useful for preventing the viewing or recording of unwanted subject matter such as violence or advertising.
  • the invention is adapted to allow selection of particular programs to be excluded from viewing or recording.
  • the user enters program codes of programs that are to be excluded, and when a received program identifying signal indicates that the current program corresponds to one of the entered codes, viewing or recording is inhibited.
  • the methods of receiving program codes from a user described above are used to nominate a set of programs to be included in an electronic program guide.
  • a parent may enter the program codes corresponding to particular programs considered by the parent to be suitable for viewing by children.
  • the invention then constructs an electronic program guide comprising only these program identifiers.
  • the invention can accommodate several such guides for particular persons or purposes.
  • the invention also consists in recording or reproducing apparatus which includes the inventive features according to the foregoing description.
  • the invention also consists in a controller which provides the inventive features according to the foregoing description which is separate from a recording means and controls it by suitable signaling.
  • Fig. 1 is a block diagram of a video cassette recorder incorporating the present invention
  • Fig. 2 is an example of the constitution of the memory used in this embodiment.
  • Fig. 3 is an example of the constitution of a program identifying label utilised by this embodiment.
  • VCR video cassette recorder
  • Microcontroller 1 controls operation of the VCR in the conventional manner, that is it receives commands from a remote controller via infra- red (IR) receiver 2 and controls tuner 4 and transport 5 so that programs received by program input 10 can be recorded and replayed.
  • IR infra- red
  • the VCR of this embodiment is adapted to control recording of programs by means of additional software and hardware to perform the following functions.
  • the user presses a "program" key on the remote controller (not shown) which causes a distinctive IR code to be received by microcontroller 1 via IR receiver 2.
  • This IR code is recognised by microcontroller 1 which then waits for a program code to be entered.
  • the code is a number printed in a TV guide, adjacent to the program's description. In many parts of the world such a number is routinely provided for use with g-code equipment, and although the special characteristics of g-code numbers are not required for this invention, the g-code numbers can be used for convenience.
  • the digits are displayed on display 11, which in this embodiment is an on-screen display but can also be other forms of display such as the liquid-crystal display commonly found on VCRs.
  • display 11 which in this embodiment is an on-screen display but can also be other forms of display such as the liquid-crystal display commonly found on VCRs.
  • the user presses a key designated as the code terminator, and microcontroller 1 stores the code in the next available position in the section of memory 3 designated as the code stack.
  • the code stack is shown as item 22 in Fig. 2.
  • the code 185 has been entered and stored.
  • Tuner 4 includes a decoder which extracts digital data from the vertical blanking interval (VBI) of a received video signal and presents this data to microcontroller 1 via the signal VBI data 7.
  • VBI vertical blanking interval
  • This data may include the program identifying signals used by this invention, however in some situations such data will not be conveniently available.
  • an extra receiver, receiver 12 is provided.
  • Receiver 12 in this embodiment is a VHF FM receiver as commonly used for paging receivers, although many other types of receiver can be substituted, according to local requirements.
  • the program identifying signals can be broadcast via a dedicated FM carrier on the cable network. Many other possibilities exist: for example, FM radio over the air, subcarrier on an FM broadcast, wired telephone connection, radio telephone connection, or Internet.
  • Microcontroller 1 receives the program identifying signals from either or both received data 13 and VBI data 7. These signals comprise a numeric code, program name, program channel scheduled start time and date, and program length corresponding to each program currently being broadcast in the operating area.
  • FIG. 3 An example program identifying signal is shown in Fig. 3.
  • the program identifier 30 is "185”.
  • Terminator 31 indicates the end of the program code field. This is followed by the program name 32, terminator 33, and then channel 34, time 35, date 36 and length in minutes 37.
  • microcontroller 1 scans code stack 22 to see if the received identifier matches any codes in the stack. If a match is found, microcontroller 1 commands tuner 4 to select the required channel, as indicated by the channel data 34, and commands the transport 5 to start recording.
  • the program identifying signals are repeated periodically, in this example every 30 seconds, for the duration of the program. Once recording has started, receipt of the same identifying signal is used to confirm that the desired program is still being broadcast and recording should continue.
  • microcontroller 1 recognises start of a program, it copies program name 32 from the received program identifying signal to name stack 23. It also copies the associated repeat flag 24 to the repeat flags 25 associated with name stack 23. Any names with an associated repeat flag are compared to program names received in program identifying data, and if a match occurs, recording is started as described above. Thus, once a program for which repeat playing has been recorded the first time, it will be recorded every time the same name appears, until the user deletes that entry from the name stack.
  • the name stack is also used to provide the user, on pressing the appropriate key, with a display of the name of the program currently being recorded or a list of names of programs in the name stack with the repeat flag set.
  • the name of the program is also superimposed on the recorded video for a few seconds when recording starts, for labeling purposes.
  • name stack 23 includes extra fields where the channel, time and date information are stored for the user's review. In cases where the user may wish to record every instance of a particular program name but only on a given channel, the channel information is stored in name stack 22 along with the program name and is taken into account by microcontroller 1 when deciding whether to initiate a repeat recording.
  • the invention herein described can be applied to a variety of recording means.
  • the invention is presently most commonly applicable to video cassette recorders, it is equally valuable for use with all other types of recording devices, such as digital video disk or hard-disk recorders.
  • the invention can be used to control operation of other types of equipment or appliances where selection of particular items from large menus of items is required.
  • the invention can be used to control operation of a television receiver, so that selected programs are displayed when they go to air.
  • Application and adaptation of the invention to many media including Internet is anticipated.
  • broadcast is used herein, it is used only by way of example and for clarity of expression as the scope of the invention is not limited to use with broadcast programs.
  • the invention can also be practised using other sources of program material, including for example cable, pay- per-view, Internet, satellite, narrowcast or pre-recorded media.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Systems (AREA)

Abstract

L'invention concerne un système de programmation automatique de programmes de télévision. Un utilisateur sélectionne un programme à enregistrer par entrée (10) d'un identificateur publié dans un guide TV imprimé ou en ligne. L'utilisateur reçoit un signal d'identification en temps réel et le compare à l'identificateur entré (10) antérieurement, et si les dits identificateurs correspondent, l'enregistrement est lancé.
PCT/AU2001/001555 2000-12-07 2001-11-30 Programmation d'un enregistreur video WO2002047379A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002218067A AU2002218067A1 (en) 2000-12-07 2001-11-30 Video recorder programming

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR1905A AUPR190500A0 (en) 2000-12-07 2000-12-07 Video recorder programming
AUPR1905 2000-12-07

Publications (1)

Publication Number Publication Date
WO2002047379A1 true WO2002047379A1 (fr) 2002-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2001/001555 WO2002047379A1 (fr) 2000-12-07 2001-11-30 Programmation d'un enregistreur video

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AU (2) AUPR190500A0 (fr)
WO (1) WO2002047379A1 (fr)

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WO1993007711A1 (fr) * 1991-09-30 1993-04-15 Yuen Henry C Appareil et procede utilisant des codes comprimes pour la programmation d'enregistrement de programme de television
EP0254517B1 (fr) * 1986-07-21 1993-12-29 Matsushita Electric Industrial Co., Ltd. Dispositif pour l'enregistrement de programmes pour appareils électroniques
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EP0254517B1 (fr) * 1986-07-21 1993-12-29 Matsushita Electric Industrial Co., Ltd. Dispositif pour l'enregistrement de programmes pour appareils électroniques
EP0255107B1 (fr) * 1986-08-01 1994-04-20 Sanyo Electric Co., Ltd. Appareil pour régler le mode de programme
WO1993007711A1 (fr) * 1991-09-30 1993-04-15 Yuen Henry C Appareil et procede utilisant des codes comprimes pour la programmation d'enregistrement de programme de television
WO1994021081A2 (fr) * 1993-03-05 1994-09-15 Mankovitz Roy J Appareil et procede utilisant des codes comprimes pour la planification d'enregistrement de progammes televises
EP0631435B1 (fr) * 1993-06-24 1999-12-22 Lg Electronics Inc. Appareil et méthode d'enregistrement sur un magnétoscope sous contrÔle d'une minuterie programmée
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EP0991272A1 (fr) * 1998-10-02 2000-04-05 Hitachi, Ltd. Méthode et appareil de génération d'écran de guide électronique de programmes et appareil de transmission de l'information de guide électronique de programmes
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AUPR190500A0 (en) 2001-01-04

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