CN1224969A - Service for transmitting video film - Google Patents
Service for transmitting video film Download PDFInfo
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- CN1224969A CN1224969A CN 98115959 CN98115959A CN1224969A CN 1224969 A CN1224969 A CN 1224969A CN 98115959 CN98115959 CN 98115959 CN 98115959 A CN98115959 A CN 98115959A CN 1224969 A CN1224969 A CN 1224969A
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- video
- video server
- vod
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Abstract
In order to provide interactive video services, a system is disclosed that includes a video server, an integrated services digital network, and a subscriber-based device with video telephony. The video server has a memory storing video films such as news broadcasts, and has a transmitting unit and a receiving unit, from which the system is connected to a video telephone via an integrated services digital network. By means of a control unit in the video server, the selected video film can be read out from the memory of the video server and transmitted to the video telephone in real time via the switched connection.
Description
The application is one and divides an application that the applying date of original application is on July 9th, 1996, and application number is 96110639.5, and the name of asking in former is called " service that transmits video film ".
The present invention relates to transmit the service and the video server of video film.
Video server is a kind of server that has some films in memory, and the video film of choosing can be sent to their user of program request.
A kind of possibility that transmits video film is by United States Patent (USP) 5,410, and 343 propose.The user inquires about current obtainable video film by digital telephone network from video server, and therefrom selects.The film of choosing transmits from video server by the broadband accessory channel of digital telephone network, and is shown to the user on television set.For the broadband accessory channel is provided, need several digital cross-connection systems.Because the inconsistency that the broadband accessory channel is used, the transfer capability of digital telephone network are not utilized well.And the selection of video film comprises a large amount of technical difficulty, because it needs the equipment of protocol compliant, usually said video gateway and network management system.
Therefore an object of the present invention is to come the transmission of video film with lower technical difficulty.
A visual telephone (TEL) has slot and a card-reading apparatus of a chip card (CARD); By a chip card (CARD) that has a code relevant with video server (VOD), can operate this visual telephone, wherein the access number of video server (VOD) is decided by video server (VOD) correlative code that card-reading apparatus obtains; And, be connected with the exchange of video server (VOD), be to dial automatically by card-reading apparatus to make this video server (VOD) call number set up.
A special advantage of the present invention is to realize video request program by existing digital telephone network.
Another advantage of the present invention is also can provide video-on-demand service to mobile object.
Also having an advantage is assistant service, has expanded the function of integrated services digital network, and it is also more attractive that this net can be used by optimal.
The present invention reaches by two following embodiment and illustrates accordingly and will become clearer.
Fig. 1: be video film transfer system the 1st embodiment block diagram;
Fig. 2: be video film transfer system the 2nd embodiment block diagram;
Fig. 3: the numeric keypad that is visual telephone.
Fig. 1 has illustrated the 1st embodiment according to system of the present invention.The system SYS that is used to transmit video film comprises video server VOD, integrated services digital network ISDN, based on client's equipment END with send the transmitter TV of TV signal.
Integrated services digital network ISDN is exactly usually said ISDN, and wherein information transmits in narrow band transmission passage and signalling path.For example, in an ISDN connects substantially, for based on the transmission channel of two 64kbps of devices allocation of user and the signalling path of a 16kbps.
For example, the transmitter TV that is used to send TV signal is the transmitter of SuddeutscherRundfunk (the German broadcast system in south German Broadcasting Service south) SDR, it sends TV programme into broadband cable issue net, for example, thus it is sent in a large amount of equipment based on the user.
Equipment END based on the user comprises a visual telephone TEL.For example, this visual telephone TEL takes from March nineteen ninety-five the specification of " Alcatel 2838-Das Bildtelefon in Ihrem Buro ".
Video server VOD comprises a control unit CTRL, memory MEM O, a transmitting element SEN and a receiving element EMP.Control unit CTRL can be a microprocessor or digital signal processor.Memory MEM O can be a random access memory.
Video server VOD links to each other with transmitter TV, and links on the visual telephone TEL by integrated services digital network ISDN.Visual telephone TEL links to each other with integrated services digital network ISDN by a 2 * 64kbps+1 * 16kbps (2B+D) ISDN basic interface.
Some video films have been stored among the memory MEM O.Video film can be from transmitter TV send, by the news broadcast of control unit CTRL receiving record.In the process of transmitting of this news broadcast, also sent the studio picture.Information change between every studio picture seldom.If only send the change information between these pictures, just can in the such narrow channel of 64kbps, send this news broadcast.Another kind of video film is a landscape lens, for example as the propaganda film of travel agency or the weather situation figure in skiing area.
Video server VOD provides the Video service of exchange, and the film that is used for choosing is sent to based on the visual telephone TEL on user's the equipment from video server VOD.The number that the user provides visual telephone TEL to dial video server VOD is set up an exchange and is connected.By the exchange of signalling path and integrated services digital network ISDN, the equipment END and the exchange between the video server VOD of setting up based on the user connect.This exchange connects the passage that comprises two 64kbps.One of two 64kbps passages are used for transmitting image, and another is used to transmit speech, as the sound that matches with picture etc.After exchange connected foundation, video server VOD sent a film register to the equipment END based on the user with the form of menu.On the screen of visual telephone TEL, film name (as arranging according to its subject content) shows with corresponding selection number.These themes can be up-to-date news, tourism or language study courses etc.The user keys in the number that desire is selected by the numeric keypad of visual telephone TEL, and is sent to video server VOD by signalling path.Video server VOD receives selected number and sends control unit CTRL to by receiving element EMP.Select the film that belongs to this number in the video film of control unit CTRL from memory MEM O, and be sent to visual telephone TEL in real time by the passage of transmitting element SEN and two 64kbps.In transport process, should keep connecting based on user's equipment END and the exchange between the video server VOD.This exchange connects and can at any time be disconnected by the handle that puts down visual telephone TEL as finishing plain old telephone by the equipment END based on the user.And, on visual telephone TEL, key in the number of a predetermined video film, can under the prerequisite that keeps exchange to connect, stop the transmission of this video film, and in the menu that occurs subsequently, select another video film.When selected video film transmits when finishing, video server VOD is sent to menu on the equipment based on the user.If do not select within the predetermined time, the exchange connection has just disconnected.
Fig. 2 has provided the 2nd embodiment according to system of the present invention.The system SYS that is used to transmit video film comprises transmitter TV, satellite SAT, video server VOD, an integrated services digital network ISDN, a digital radio networks GSM and a mobile object ZUG who sends TV signal.
For example, the transmitter TV that sends TV signal sends to the transmitter of a TV tissue on the satellite SAT by radio channel with TV programme, and this satellite is beamed back ground with TV programme, and they can be received by some equipment based on the user.
The design class of video server VOD is similar to the video server among Fig. 1.It comprises a control unit, a memory, a transmitting element, a receiving element and an auxiliary reception equipment that is used to receive the TV programme of SAT transmission via satellite.
Integrated services digital network ISDN is exactly ISDN usually said among Fig. 1.
Digital radio networks GSM is a cellular mobile radio net based on GSM standard; " GSM " representative " Global System for Mobile Communication (global system for mobile communications) ".Digital radio networks GSM comprises a base station BTS, a base station controller BSC and a moving exchanging center MSC.Moving exchanging center MSC can link to each other with several base station controllers.Base station controller BSC can link to each other with several base stations.Base station BTS links to each other with moving exchanging center MSC by base station controller BSC with integrated services digital network ISDN.
Can select a joint compartment of a row train as the example of mobile object ZUG.Mobile object ZUG also can be a motor vehicle.Railway carriage ZUG comprises a unit UNIT, is used to receive the wireless signal that transmits by base station BTS, and these wireless signals are converted to can be by the signal of visual telephone processing, and the conversion of signals that reaches visual telephone is the wireless signal that meets GSM standard.Railway carriage ZUG also comprises a visual telephone TEL.
Visual telephone TEL is corresponding to the visual telephone among Fig. 1, but it also comprises slot and a card reading unit of a chip card.By card reading unit, visual telephone TEL can be lockable.When not having chip card in the slot, visual telephone has just been locked.Have only when having the code fixed according to video server VOD on the chip card CARD of insertion and the card, visual telephone TEL just can be unlocked, and the latter could work and set up an exchange with video server separately and be connected like this.Fixed code comprises the dialing of video server (VOD) separately according to video server (VOD).This dialing is dialled in automatically by card-reading apparatus, sets up then with the exchange of separately video server (VOD) to be connected.In the process of transmitting of video film, current expense may be displayed on the screen of visual telephone.
Exchange from visual telephone TEL to video server VOD connects to be set up by digital radio networks GSM and integrated services digital network ISDN.Can select after this connection is set up video film and with Fig. 1 in the similar method of description transmit this film.
Visual telephone TEL can merge with the chair back, and the rail traveler just can operate phone at an easy rate like this.
Fig. 3 has shown an alphanumeric keyboard, and it can be used for the visual telephone of Fig. 1 and Fig. 2.
On numerical key 2-0, also distributed alphabetical A-Z.Distribute alphabetical A, B, C as digital 2 keys, digital 6 keys distribute alphabetical M and N.Each video server VOD has a video server name.For example, video server is with the name nominating of a TV tissue, " Zweites Deutsches Fernsehen " (Second German Television ZDF).As the abbreviation of this video server name, can dial ZDF.Be connected if the user wants to set up with the exchange of video server VOD resemble ZDF, he (she) will dial service number and add an auxiliary number, and auxiliary number is decided according to the abbreviation of this video server name.
For example want accessing video server VOD ZDF, user's service of will dialing number 0190 adds VODZDF, and it is corresponding with auxiliary number 803033, sets up and being connected of video server VOD.
If the user selects the number of same theme on the video server VOD menu of being everlasting, as No. 100 latest news, he (she) after knowing the number of setting, also can select a video film without the menu dial-in direct.Like this, the user just can see latest news from the video server VOD of CNN by key entry 0190VOD CNN100 on his visual telephone of (she), and its corresponding dialed digit is 0,190 803 226 100.
Two embodiment have used integrated services digital network ISDN, and wherein information transmits in narrow channel." arrowband " means the transfer capability of 9.6kbps-2Mbps.If online at digital radio, the transfer capability of 9.6kbps is to be used for transmitting selected video film inadequately, can set up the exchange that comprises several passages and connect to reach the transfer capability of 7 * 9.6kbps=67.3kbps.
Claims (1)
1. a visual telephone (TEL) has slot and a card-reading apparatus of a chip card (CARD); By a chip card (CARD) that has a code relevant with video server (VOD), can operate this visual telephone, wherein the access number of video server (VOD) is decided by video server (VOD) correlative code that card-reading apparatus obtains; And, be connected with the exchange of video server (VOD), be to dial automatically by card-reading apparatus to make this video server (VOD) call number set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98115959 CN1224969A (en) | 1995-07-10 | 1998-07-09 | Service for transmitting video film |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19524704.3 | 1995-07-10 | ||
| CN 98115959 CN1224969A (en) | 1995-07-10 | 1998-07-09 | Service for transmitting video film |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96110639A Division CN1081869C (en) | 1995-07-10 | 1996-07-09 | Server for transmitting video signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1224969A true CN1224969A (en) | 1999-08-04 |
Family
ID=5224876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98115959 Pending CN1224969A (en) | 1995-07-10 | 1998-07-09 | Service for transmitting video film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1224969A (en) |
-
1998
- 1998-07-09 CN CN 98115959 patent/CN1224969A/en active Pending
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |