WO1999055088A1 - Procede pour la transmission de signaux d'informations supplementaires dans des intervalles de suppression d'un signal video, et dispositif recepteur de ces signaux d'informations supplementaires - Google Patents

Procede pour la transmission de signaux d'informations supplementaires dans des intervalles de suppression d'un signal video, et dispositif recepteur de ces signaux d'informations supplementaires Download PDF

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Publication number
WO1999055088A1
WO1999055088A1 PCT/DE1999/000828 DE9900828W WO9955088A1 WO 1999055088 A1 WO1999055088 A1 WO 1999055088A1 DE 9900828 W DE9900828 W DE 9900828W WO 9955088 A1 WO9955088 A1 WO 9955088A1
Authority
WO
WIPO (PCT)
Prior art keywords
program code
microcontroller
algorithm
data
additional information
Prior art date
Application number
PCT/DE1999/000828
Other languages
German (de)
English (en)
Inventor
Bernd Burchard
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1999055088A1 publication Critical patent/WO1999055088A1/fr

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Classifications

    • 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
    • H04N7/0882—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 character code signals, e.g. for teletext
    • 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
    • H04N7/0884—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 additional display-information, e.g. menu for programme or channel selection

Definitions

  • the invention relates to a method for transmitting additional information signals in blanking intervals of a video signal according to the features of the preamble of claim 1 and a device for receiving these additional information signals.
  • Such methods for transmitting additional information signals in blanking intervals of a video signal are generally known.
  • the additional information signals consist of teletext signals, VPS signals or the like. These teletext signals and / or VPS signals are transmitted in blanking intervals of the video signal.
  • the receiving devices for receiving such teletext signals or VPS signals are generally television sets or video recorders.
  • the teletext data for the teletext pages to be displayed on the screen in television lines 6 - 23 and 318 - 353 can overlap the vertical blanking interval of the video signal. if a 625-line television system is assumed.
  • the continuous transmission of the teletext data takes place in a specially encrypted format with a bit rate of
  • a teletext page consists of 24 teletext lines in the first stage (level 1) of the orld system teletext, each with teletext address data at the beginning followed by teletext data.
  • SS or closed caption Other services that are already transmitted in the vertical blanking interval for television signals, e.g. B. is SS or closed caption. These services are generally either text services which display the transmitted information directly or control services which set control bits in the microcontrollers of the video or television sets which are determined by the transmission of well-defined protocols.
  • the control bits can e.g. B. be used to turn on VCRs.
  • the invention has for its object to improve the now known methods for the transmission of additional information signals in blanking intervals of the video signal and to provide a device with which the additional information signals that were transmitted by the improved method can be processed.
  • the method according to the invention is essentially based on the fact that the additional information signals not only contain data or control information to be displayed directly, but rather a program code and / or an algorithm which can be processed in the additional data processing device.
  • the program code and / or algorithm contained in the additional information signals is advantageously stored so that it can be accessed at any time.
  • a prerequisite for the functioning of such a method is, of course, that a standardized program code and / or standardized algorithm is transmitted which can be processed in the receiving device, which has stored the corresponding command set in a non-volatile memory.
  • the processor present in the receiving device for example a microcontroller, must therefore be able to process such a standardized program code and / or algorithm.
  • the video signal transmitter generally the television stations
  • the video signal transmitter can, for example, decode encrypted programs, display browsers for teletext times or animate certain logos.
  • a return channel to the TV stations is useful for this, but it is not absolutely necessary.
  • One possible return is that the viewer contacts the broadcaster over the phone.
  • the viewer can directly dial the telephone number of the television station directly and speak to the television station.
  • he has a modem with keyboard input available, for example, to contact the television broadcaster via the Internet. It is possible that the viewer only moves the cursor to a specific position on the screen on which the Internet address is shown, activates a confirmation button and then selects this Internet connection automatically.
  • a modem must be connected to an interface of the additional data processing device.
  • the software present in the microcontroller first fixes the existing hardware configuration of the additional data processing device. If a modem and a suitable keyboard are found at the interfaces of the additional data processing device, so the viewer can get in touch with the television station. The software then tries to contact the television's computer via the standardized software interface.
  • the device for decoding and further processing of the additional information signal transmitted in the blanking gaps of the video signal which contains a program code or algorithm, expediently has a data separating device and a microcontroller for data decoding and further processing, as well as a memory device.
  • a command set is stored in the memory device and can be called up by the microcontroller for processing the program code and / or algorithm contained in the additional information received.
  • the device preferably has a memory device with a non-volatile memory area in which the command set for the program code and / or algorithm is stored.
  • a non-volatile memory can be, for example, an EEPROM memory.
  • the data packet derived from the program code and / or algorithm received in each case can then be stored in a volatile memory area. When switching off the TV or video deorekorders, in which this device is implemented, this data will of course be lost.
  • the microcontroller expediently has one or more serial and / or parallel interfaces, so that on the microcontroller a network, a telephone network, a printer, a keyboard, a sound or image generator, a facsimile device, a mass storage medium such as, for. B. a CD, a hard drive or the like., A game port, a viewer identification card or the like.
  • the data separation device can be designed such that it reads the program code and / or algorithm in the additional information signals on predetermined pages of a teletext signal.
  • the data separation device recognizes the program code and / or algorithm to be received by identifying character strings at the beginning and / or end of a data packet.
  • FIG. 1 is a block diagram of a television set with additional data processing device
  • Fig. 2 is a block diagram of that shown in Figure 1 Additional data processing device.
  • FIG. 1 shows an example of a television set which can display both the television signals and additional information signals on the screen 8.
  • the television set has an input terminal 1 for a video signal. This input terminal 1 can be connected, for example, to an antenna or to a cable connection.
  • a tuner 2 with a downstream video IF amplifier 3 is connected to the input terminal 1.
  • the output of the video IF amplifier 3 is connected to a color decoder and subsequent video output stage.
  • the color decoder and the video amplifier are as one
  • the output of the video output stage 5 is connected to the picture tube 8. Furthermore, the video IF amplifier 3 is connected to the picture tube 8 via a vertical deflection stage 4. Finally, the output of the video IF amplifier 3 is coupled to the input 7a of an additional data processing device 7. The output 7b of the additional data processing device is in turn connected to the color decoder and the video output stage 5 of the television set in order to be able to display the information obtained from the additional data on the picture tube 8 if necessary.
  • the additional data processing device 7 is provided for separating, decoding and isolating software program codes and / or algorithms from the video signal 1. to work.
  • FIG. 2 shows the additional data processing device 7 from FIG. 1 in somewhat more detail.
  • a data separation stage 20, a so-called data slicer, is connected to the input 7a of the additional data processing device 7.
  • This data separation stage 20 includes a clamping circuit with a downstream scanning element and an analog / digital converter unit in order to digitize the data which are initially present in analog form.
  • the digitized data are made available to a data processing device, for example a microcontroller 22, which processes the received data, which correspond to a software program code and / or algorithm, in accordance with a standardized protocol.
  • the microcontroller 22 is in contact with a memory 24 in which the instruction set required for this is stored.
  • the instruction set is expediently located in a non-volatile memory area 24a of the memory 24.
  • the microcontroller 22 is in contact with a plurality of interfaces 26, 28, 30 and 32, which can be serial interfaces or parallel interfaces. A wide variety of devices and input or output units can be connected to these interfaces 26, 28, 30, 32. Furthermore, the microcontroller 22 has the option of connecting an operating unit 34.
  • the data processed depending on the received program code and / or algorithm are available at the output 7b of the additional data processing device 7 for further processing.
  • the data at output 7b can be provided, for example, for playing a video game. hen.
  • the program code received activates a software program that activates the transmission and printing of newspaper news during the night for the viewer.
  • the various interfaces 26, 28, 30 and 32 provided on the microcontroller can be provided to connect a network or a telephone network to the microcontroller 22.
  • a connection of printers, a control device, such as. B. keyboard, or a remote control is also possible.
  • the microcontroller 22 is expediently able to determine which hardware components are connected to the interfaces 26, 28, 30 and 32. Furthermore, it can be provided in the microcontroller 22 that the viewer using this device is identified. For this purpose, a so-called key card interface is provided in the microcontroller 22.
  • the operating system contained in the microcontroller 22 is preferably standardized and has an interface for activating the program downloaded from the program code.
  • An interface for reading the configuration, for outputting messages, for outputting sound, for outputting compressed video data or for controlling a printer can be provided.
  • a fax machine, a mass storage device, such as. B. a CD, a hard disc or a floppy, etc. to connect to the microcontroller 22.
  • a game port and an interface for remote control can be used for control 10
  • a standardized coding e.g. B. by Java or an arrow system that treats the incoming data as an input stream is also possible.
  • the known teletext standard method can, for example, be used as the transmission method for the additional information.
  • the data is transmitted in the CVBS signal, for example in the vertical blanking interval. Deviating from the teletext standard, however, the entire image can also be replaced by data information.
  • a downloaded program can switch off the screen and the sound of the television.
  • a so-called standardized microcontroller 22 is expediently provided in the additional data processing device 7. This is a microcontroller that performs predefined actions based on specified strings. Such coding must be standardized so that all receivers, ie television sets and video recorders, can potentially understand this program code. In order for the effects of the program code to be precisely predictable, the architecture and timing of the microcontroller must be precisely defined. In particular, all software interfaces must be precisely defined in order to prevent television-dependent behavior.
  • Microcontroller is characterized in particular by the fact that it understands the standardized code unambiguously, carries out the actions triggered by the program code in a certain predefined manner, etc.
  • the architecture of the microcontroller 22 is expediently predetermined by an architecture standard, this being quite different possible Hardware configurations can support, but must be recognizable by the software.

Abstract

Le procédé consiste à transférer dans des intervalles de suppression d'un signal vidéo, un code programme et/ou un algorithme qui est séparé, décodé, traité dans un dispositif de décodage approprié, et à préparer les données fournies lors du traitement en vue d'une utilisation ultérieure. L'appareil récepteur présente, à cet effet, un microcontrôleur (22) et un dispositif à mémoire (24) dans lequel est mémorisé le bloc d'instruction requis.
PCT/DE1999/000828 1998-04-22 1999-03-22 Procede pour la transmission de signaux d'informations supplementaires dans des intervalles de suppression d'un signal video, et dispositif recepteur de ces signaux d'informations supplementaires WO1999055088A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19818049.7 1998-04-22
DE19818049 1998-04-22

Publications (1)

Publication Number Publication Date
WO1999055088A1 true WO1999055088A1 (fr) 1999-10-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/000828 WO1999055088A1 (fr) 1998-04-22 1999-03-22 Procede pour la transmission de signaux d'informations supplementaires dans des intervalles de suppression d'un signal video, et dispositif recepteur de ces signaux d'informations supplementaires

Country Status (1)

Country Link
WO (1) WO1999055088A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002035791A1 (fr) * 2000-10-23 2002-05-02 Thomson Licensing Sa Procede et dispositif de transmission de donnees dans un systeme televisuel
FR2924259A1 (fr) * 2007-11-27 2009-05-29 Thomson Licensing Sas Module de traitement de donnees video dote d'une unite de traitement video dont la configuration est programmable a bus d'entree unique
GB2463375A (en) * 2008-09-12 2010-03-17 Pandora Int Ltd Colour editing using algorithm stored in image data
DE102022116363B3 (de) 2022-06-30 2023-10-05 Elmos Semiconductor Se Vorrichtung zur Erzeugung eines Hochfrequenztakts
DE102022116367B3 (de) 2022-06-30 2023-10-05 Elmos Semiconductor Se Verfahren zur Erzeugung eines Hochfrequenztakts
DE102022116365A1 (de) 2022-06-30 2024-01-04 Elmos Semiconductor Se Kompakte Vorrichtung zur Erzeugung eines Hochfrequenztakts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993010605A1 (fr) * 1991-11-20 1993-05-27 Zing Systems, L.P. Systeme transactionnel de television interactive
WO1996005699A1 (fr) * 1994-08-12 1996-02-22 Actv, Inc. Diffusion simultanee de signaux interactifs avec un signal video conventionnel
EP0757485A2 (fr) * 1995-07-31 1997-02-05 Kabushiki Kaisha Toshiba Système interactif de télévision
EP0854649A2 (fr) * 1997-01-16 1998-07-22 Digital Vision Laboratories Système de transmission de télévision et récepteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993010605A1 (fr) * 1991-11-20 1993-05-27 Zing Systems, L.P. Systeme transactionnel de television interactive
WO1996005699A1 (fr) * 1994-08-12 1996-02-22 Actv, Inc. Diffusion simultanee de signaux interactifs avec un signal video conventionnel
EP0757485A2 (fr) * 1995-07-31 1997-02-05 Kabushiki Kaisha Toshiba Système interactif de télévision
EP0854649A2 (fr) * 1997-01-16 1998-07-22 Digital Vision Laboratories Système de transmission de télévision et récepteur

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002035791A1 (fr) * 2000-10-23 2002-05-02 Thomson Licensing Sa Procede et dispositif de transmission de donnees dans un systeme televisuel
EP1202520A1 (fr) * 2000-10-23 2002-05-02 THOMSON multimedia Procédé et dispositif de transmission de données dans un système de télévision
US7984471B2 (en) 2000-10-23 2011-07-19 Thomson Licensing Method and device for the transmission of data in a television system
FR2924259A1 (fr) * 2007-11-27 2009-05-29 Thomson Licensing Sas Module de traitement de donnees video dote d'une unite de traitement video dont la configuration est programmable a bus d'entree unique
EP2066125A1 (fr) * 2007-11-27 2009-06-03 Thomson Licensing Module de traitement de données vidéo doté d'une unité de traitement vidéo configurable avec un seul bus d'entrée
US8125571B2 (en) 2007-11-27 2012-02-28 Thomson Licensing Video data processing module furnished with a configurable video processing unit with a single input bus
GB2463375A (en) * 2008-09-12 2010-03-17 Pandora Int Ltd Colour editing using algorithm stored in image data
DE102022116363B3 (de) 2022-06-30 2023-10-05 Elmos Semiconductor Se Vorrichtung zur Erzeugung eines Hochfrequenztakts
DE102022116367B3 (de) 2022-06-30 2023-10-05 Elmos Semiconductor Se Verfahren zur Erzeugung eines Hochfrequenztakts
DE102022116365A1 (de) 2022-06-30 2024-01-04 Elmos Semiconductor Se Kompakte Vorrichtung zur Erzeugung eines Hochfrequenztakts

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