RU2152139C1 - Method for transmission of interactive video data using conference communication service - Google Patents

Abstract

FIELD: communication equipment. SUBSTANCE: method involves interactive video data request by user from conference communication service using telephone network. Conference communication service assigns individual address to page with interactive video data, informs user about this address via telephone line. User stores address into conference communication controller of receiver and informs conference communication service via telephone line. Then, conference communication service transmits page with interactive video data. Simultaneously, conference communication service transmits to user an instruction that prohibits conference communication controller from comparison of current address of page transmitted by conference communication service to address of page, which is stored in conference communication controller of receiver for reading interactive video data transmitted to user or address of page, which is not used for transmission of conference communication and interactive video data. User stores it into conference communication controller of receiver and informs conference communication service via telephone line. User finds and receives desired interactive video data by repeating said algorithm. EFFECT: possibility to use conference communication controller for reception of interactive video data transmitted by conference communication service. 8 cl, 1 dwg

Description

 The invention relates to communication technology and can be used by telematic services.

A known method of circular videography (CV) - Teletext. In such a system, the broadcasting of magazines is cyclically carried out, in each of which messages on certain topics are grouped. After the transfer of all pages of the journal or even several magazines that make up the cycle, the information is retransmitted in the same or updated form. One or more pages of the journal contain a table of contents of the offered CV services. The subscriber using the remote control indicates the number of the magazine of interest to him and the number of the desired page in the magazine. Upon receipt of the required page, its description in encoded form is entered into the storage device (memory) of the subscriber controller, converted and displayed on the TV screen. [Schwartzman V.O. Telematics. Moscow. Radio and Communications, 1993, p. 212-220.]
The disadvantage of this method is the limited amount of information available to the subscriber and the lack of the ability to provide interactive video graphics (VI) to users at their request.

The closest technical solution to this invention is the method of IV - Videotex. The initiator of the connection is the user. The subscriber starts working with the terminal by disconnecting the television receiver from the antenna and connecting the terminal to the antenna or other input of the TV. Having dialed the number of the Videotex center (CTC) on the telephone and hearing the corresponding tone of the CTC, the user, by pressing the keyboard keys, puts the terminal into the mode of exchanging information with the CTC. After establishing a logical connection between the terminal and the central heating center, the user is given the opportunity to receive IVs in a dialogue mode. [Schwartzman V. O. Telematics. Moscow. Radio and Communications, 1993, p. 185-212.]
The disadvantage of this method is the inability to use the controller of the CV of the television receiver, as well as the low speed of information transfer.

 The aim of the present invention is a method of using the controller of the CV receiver, to receive the IW transmitted by the service of circular video (SCV), using asynchronous time division.

 This goal is achieved in that the user turns on the information receiver in the reception mode of the CV. One or more pages of the circular videography service contains a table of contents of the provided IV services. The CV transmitted by the SCV is divided into pages that are provided with an address.

 The address of the page from the address space of the CV in which the CV is located is called the broadcast address (SHA).

 The address of the page from the address space of the CV that is not used for transmitting the CV is called an individual address (IA).

 The address indicated on the CV page containing the table of contents of the provided IV services or on the CV page with the IV is called the relative address (OA).

 An ordered sequence of OA, with a sequential input of which the subscriber receives a page with the OA specified last in an ordered sequence, is called a full address (PA).

 The IA of a page that is never used for transmitting an IW is called a return address (AB).

 In order for the user to receive the IV, he must enter the page containing the table of contents of the provided IV services using the controller’s controller for circular videography. By dialing the number of the SCV manually or automatically on the telephone, and hearing the corresponding tone of the SCB, the user, by pressing the keypad keys on the telephone or terminal, switches to the mode of exchanging information with the SCB without disconnecting the digital receiver from the digital communications channel. Work with SCV consists of a sequence of exchange cycles (CO).

 The exchange cycle consists of a sequence of the following operations.

 Having selected OA or PA, the subscriber who is required by the user, sends the OA or PA to the CCV using the keypad of the telephone set or terminal. After entering any address, except SHA, the subscriber sends the command "end of input" (KB) in the SCV. The SCV requests from the database service the subscriber required by the subscriber. The database service forwards the requested IW to the circular videography service, in which the IW is converted to the CV format.

 A page or pages containing the information source requested by the subscriber in the CV format is assigned an IA different from other information systems assigned in the data center that is already being executed at the request of other subscribers, except for the request of the same information source from different subscribers, in this case, all subscribers requesting one and the same AI, the same IA is reported. SCV over the telephone network informs the subscriber of the page containing the information requested by the subscriber. Automatically using the IV terminal or manually using the CV control panel, the IA is entered into the receiver's CV controller. After the lapse of the time interval required for entering into the CV controller of the receiver the IA of the page containing the information requested by the subscriber or receiving the SCV from the subscriber via the telephone network automatically or manually, using the telephone keypad, the KB command entered from the subscriber informing the SCV about the recording of the CV in the CV controller the receiver of the IA of the page containing the information requested by the subscriber of the IW, SCV, after the end of the transfer of the next page from the ShA, transmits the page or pages of the IA, which contains the information requested by the subscriber. After the transfer of the page or pages from the IA, the circular videography service continues to transmit the pages of the CV with the next ST. At the same time, the SCV via the telephone network informs the subscriber of a command prohibiting the controller of the receiver's CV to compare the current address of the page transmitted by the center with the address of the page written to the CV controller to output the IV to the subscriber or the AV, which are manually or automatically entered into the controller of the receiver's CV. After the lapse of the time interval necessary for entering into the CV controller of the receiver a command prohibiting the controller of the CV receiver to compare the current page address of the transmitted SCV with the address of the page recorded in the CV controller to output the IV to the subscriber or the AV, or to receive the SCV via the telephone network, the command entered manually or automatically by the subscriber KB, informing about the entry in the controller of the CV of the receiver of the command that prohibits the controller of the CV of the receiver from comparing the current page address of the transmitted SCV with the address of the page recorded in a CV controller for outputting IW to a subscriber or an AV, a HVAC transmits a page with the IA used in a given color center, into which masking information is recorded before transmission to the subscriber. At this, the DH ends. If the flow of requests from subscribers to receive the IW is greater than the number of free (not participating in the DT) IAs, then the DT ends after the interval of time necessary for the command to prevent the DT controller from comparing the current page address transmitted by the DTS with the page address recorded in the CV controller to output the IV to the subscriber or the AV, or to receive the SCV via the telephone network, entered manually or automatically by the subscriber to the KB command, informing about the command being entered in the CV controller of the receiver, for preventing the controller of the CV of the receiver from comparing the current address of the page transmitted by the SCV with the address of the page recorded in the controller of the CV for outputting the IV to the subscriber or the AV. When a subscriber requests another IV, the exchange cycle is repeated.

 The drawing shows: a - a timing diagram of the operation of the central heating network on the transmission network of the CV; b - time diagram of the operation of the central heating station over the telephone network.

The following notation is accepted:
1 - CV page with broadcast address;
2 - CV page with an individual address;
3 - relative address;
4 - command end input;
5 - CV page with an individual address used in the data center;
6 - return address;
7 - individual address.

 The invention is illustrated by the example of transmitting IW service Teletext. The subscriber using the remote control (remote control) switches the television receiver to Teletext mode. Introduces the SHA of the page containing the table of contents of the provided IV services. The subscriber dials the Teletext service number on the telephone set indicated on the page of the provided IV services. Having heard the corresponding tone of the Teletext service (frequency 2100 Hz. And duration 4c), the subscriber switches the telephone set to tone dialing mode. The control commands for receiving a subscriber of information through the Teletext service correspond to the control commands of the VideoTex and Teletext service.

 If the Teletext service uses addresses from 100 to 500 to transmit the CV, and the Teletext service address space is from 100 to 800, then the ALs correspond to 100 to 500, and the IA correspond to 501 to 800. From the IA address space, the address 800 is assigned to the return address.

 Having selected the necessary section from the table of contents of the provided IV services, the subscriber dials the OA corresponding to this section on the telephone set. For example, the table of contents is as follows: 1 - news; 2 - addresses and phone numbers of hospitals, clinics, shops; 3 - addresses and phone numbers of service industry institutions; 4 - exchange of apartments; 5 - hiring of labor; 6 - miscellaneous. A subscriber who is interested in exchanging an apartment presses on the keyboard buttons 4, corresponding to OA, and END OF SELECTION, corresponding to the KV command. The Teletext service receives over the telephone network a tone signal corresponding to the number 4 and the END OF SELECTION command, decodes them and requests from the IW database the information requested by the IW subscriber. The IW database service forwards the requested IW to the Teletext service, in which the IW is converted to the Teletext service format. A page containing the AI requested by the subscriber is assigned an IA, for example 600, different from the IA participating in the call center with other subscribers. The Teletext service, using a voice synthesizer over a telephone network, transmits to a subscriber an IA of the Teletext page, equal to 600, which contains the AI requested by the subscriber. The subscriber, having heard the IA, using the remote control records the IA equal to 600 in the Teletext controller. After that, using the telephone keypad, the subscriber enters the END OF SELECTION command. The Teletext service decodes the message from the subscriber and transmits a page containing the information requested by the subscriber with the address 600 via the CV transmission network. The Teletext receiver of the subscriber receives the CV page with the address 600 and displays it on the screen, after which the subscriber uses the telephone keypad to enter the END command CHOICE. The Teletext service receives and decodes the END SELECTION command. Using a voice synthesizer, the Teletext service informs the subscriber with a return address of 800. Using the remote control, the subscriber, having heard the return address of 800, writes the return address of 800 to the Teletext controller. After that, using the telephone keypad, the subscriber enters the END OF SELECTION command. The Teletext service decodes the message from the subscriber END OF CHOICE and transmits a page with the address 600 to the masking information in advance on the transmission network of the digital television. After that, the individual address 600 can be used in another central office. By sequentially performing the central heating, the subscriber finds and receives the required IO.

Claims (8)

 1. A method for transmitting interactive videography by a circular videography service, namely, that the subscriber’s information receiver is turned on to receive a circular videography, connected via a subscriber’s telephone network to a circular videography service, the address of an interactive videography required by a subscriber is selected from the proposed interactive videography services, and transmitted by telephone network, the service of circular videography, the address of the subscriber needed interactive videography, characterized in that they transmit to the subscriber via the telephone network the address with ranitsy, from the address space of circular videography comprising interactive videography requested by the subscriber, transmitting the interactive videography requested subscriber network transmission circular videography, obtained by the controller circular videography receiver videography interactive subscriber requested subscriber.  2. The method according to p. 1, characterized in that the interactive videography in the format of circular videography is transmitted over the transmission network of the circular videography.  3. The method according to p. 1, characterized in that the page containing the interactive video requested by the subscribers is assigned an address from the address space of the circular video that is not used for transmitting circular video and different from the addresses assigned to the pages containing the interactive video on request of other subscribers , with the exception of requesting the same interactive videography from different subscribers, in this case, all subscribers who requested the same interactive videography are informed of the same the address of the page containing the interactive video requested by the subscribers.  4. The method according to claim 1, characterized in that the page address transmitted by the circular video service to the subscriber via the telephone network is automatically or manually entered into the receiver’s circular video controller.  5. The method according to p. 1, characterized in that after transmitting through the network of circular video images of the pages with interactive video requested by the subscriber, a command is transmitted to the subscriber via the telephone network that prohibits the controller of the circular video of the receiver from comparing the current address of the page transmitted by the circular video service with the address a page recorded in the receiver’s circular video controller or a page address never used to transmit circular and interactive video that cally or manually are entered into the controller circular receiver videography.  6. The method according to claim 2, characterized in that the page containing the interactive video image with the assigned address is transmitted via the transmission network of the circular video image at the end of the time interval required for the address of the page containing the interactive video image to be entered into the video controller of the video receiver, or after receiving the service of circular videography over the telephone network automatically or manually entered a command from the subscriber, informing about the entry of the page address into the controller of circular videography.  7. The method according to claim 5. characterized in that the address of the page that is used to transmit interactive videography to the subscriber can be used to transmit interactive videography to another subscriber after the time interval necessary for introducing a command prohibiting the controller of circular videography into the controller of circular videoography receiver compares the current page address transmitted by the circular video service with the address of the page recorded in the receiver’s circular video controller , or the address of a page that has never been used for transmitting circular and interactive videography, or when the circular videography service receives over the telephone network an automatically or manually entered command from a subscriber informing about the introduction of a command to the controller of circular video videography that prohibits the controller of circular video videography of the receiver from comparing the current page address transmitted by the circular videography service, with the address of the page recorded in the receiver’s circular video controller, or the address of the page Anitsa, never used to transmit circular and interactive video.  8. The method according to p. 6, characterized in that the page with the same address that was used to transmit the interactive video clip to the subscriber, having previously recorded the masking information in it, after the end of the time interval necessary for transmitting from the circular videography service to the circular videography transmission network entering into the controller of circular video graphics of the receiver a command prohibiting the controller of circular video graphics of the receiver, comparing the current address of the page transmitted by the circular video graphics service with resizing the page recorded in the receiver’s circular video controller, or the address of the page that has never been used for transmitting circular and interactive video, or receiving a circular video command over the telephone network automatically or manually entered by a subscriber informing about the introduction of a command into the circular video video controller, prohibiting the controller of the circular video of the receiver from comparing the current page address transmitted by the circular video service with the page address recorded in the controller of the circular video of the receiver, or the address of a page never used for transmission of circular and interactive video.