EP0811294A1 - Boite accessoire de communication pour poste recepteur de television - Google Patents

Boite accessoire de communication pour poste recepteur de television

Info

Publication number
EP0811294A1
EP0811294A1 EP97901007A EP97901007A EP0811294A1 EP 0811294 A1 EP0811294 A1 EP 0811294A1 EP 97901007 A EP97901007 A EP 97901007A EP 97901007 A EP97901007 A EP 97901007A EP 0811294 A1 EP0811294 A1 EP 0811294A1
Authority
EP
European Patent Office
Prior art keywords
unit
stb
signals
isdn
top box
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP97901007A
Other languages
German (de)
English (en)
Inventor
Harald Orlamünder
Christian Homann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Alcatel SA
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel SA, Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel SA
Publication of EP0811294A1 publication Critical patent/EP0811294A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • 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
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6187—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving transmission via a telephone network, e.g. POTS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13178—Control signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13202—Network termination [NT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13299—Bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13332—Broadband, CATV, dynamic bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13333—Earth satellites
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13376—Information service, downloading of information, 0800/0900 services

Definitions

  • the invention relates to a set-top box according to claim 1.
  • broadband communication systems capable of return channels are required.
  • the video and audio signals of the interactive services are e.g. transmitted in the forward channel of a hybrid broadband communication network or via a satellite connection to several subscribers.
  • Each participant has a set-top box in which the video and audio signals, etc. decompressed, decoded and decrypted.
  • each participant In order to be able to use the interactive services, each participant must be able to request the desired services from the server. This is done via a return channel.
  • the reverse channel is via an integrated service digital Network, the so-called ISDN.
  • the request signals are transmitted via an ISDN telephone system in a user information channel, the so-called B channel.
  • This has the disadvantage that during the use of the video-on-demand service, for example 90 min. for each video film, the user information channel is occupied and cannot be used, e.g. for making calls.
  • a low data rate for example 10 kbit / s, is sufficient for the transmission of the request signals. Only a small part of the 64 kbit / s of the user information channel is therefore used.
  • a particular advantage of the invention is the possibility of simultaneous use of interactive services and telephone services for subscribers to whom only one payload channel is available.
  • Another advantage of the invention is the better utilization of the signaling channel in the integrated service digital network.
  • the invention is explained below using an exemplary embodiment with the aid of FIGS. 1 and 2. Show it:
  • Fig. 1 is a schematic representation of a return channel capable broadband communication system according to the invention.
  • Fig. 2 is a schematically illustrated structure of a set-top box according to the invention.
  • FIG. 1 shows a broadband communication system BK capable of return channel.
  • the back-channel-capable broadband communication system BK serves among other things interactive services such as Video-on-demand or home banking.
  • the basis for the broadband communication system BK is a cable television distribution network CATV and an integrated service digital network ISDN.
  • Television and radio programs are fed from a television and radio station TVR into the cable television distribution network CATV and transmitted to several subscriber facilities.
  • video and audio signals are fed from a server SERVER into the cable television distribution network CATV and transmitted to the participant.
  • the transmission of the subscriber's request signals which e.g. can also be used for fast forward and rewind activities, still images or booking orders via the integrated service digital network ISDN.
  • the subscriber device TN of the subscriber includes a television set TV, a set-top box STB and an infrared remote control IR.
  • the television programs and the video signals are displayed on the TV screen.
  • the set-top box STB is used to receive television and radio programs as well as video and audio signals that were transmitted via the CATV cable television network, to receive control signals from the integrated digital network ISDN, to receive infrared signals from the infrared Remote control, for the transmission of the received and processed television and radio programs, as well as the received and processed video and audio signals to the television, as well as for the transmission of request signals via the integrated service digital network ISDN.
  • the request signals are transmitted via an S n interface in a packet-switched method in a signaling channel of the integrated service digital network ISDN.
  • the signaling channel represents the return channel.
  • a switching center of the integrated services digital network ISDN receives the request signals consisting of packet data from several participants and combines them in the multiplex process so that the request signals of a group of participants, e.g. in a user information channel, which is connected, for example, as a leased line, can be transmitted from the switching center via the integrated digital network ISDN to the server SERVER.
  • FIG. 2 shows a set-top box STB of a subscriber of the broadband communication system from FIG. 1.
  • the set-top box STB contains a decoding unit DEK, a control unit CTRL, an S ⁇ interface S 0 and an infrared receiving unit IR.
  • the decoding unit DEK is connected to the cable television network CATV, the television set TV and the control unit CTRL. It is used to convert those of the received video and audio signals Participants requested to filter out, process and transmit to the TV set TV.
  • the processing includes decompression, demodulation, decoding and decryption.
  • the video and / or audio signals are compressed, for example, according to the inter / intra method, modulated according to quadrature phase modulation, coded according to the MPEG-2 method and encrypted using an asymmetrical encryption method.
  • the steps of the individual processing stages and the components required for this, as well as their interconnection, are known to the person skilled in the art.
  • the decoding unit DEK also has the interfaces and system properties of the Nokia DVB 9500 S (d-box) from the article "Set-top boxes for digital TV" from Funkschau 23/1995, page 23.
  • the S ⁇ interface S ⁇ is an interface defined in the integrated digital network ISDN with two useful information channels, the so-called B channels, each with 64 kbit / s transmission capacity and with a signaling channel, the so-called D channel, with 16 kbit / s transmission capacity.
  • the infrared receiving unit IR serves to receive the request signals sent by the infrared remote control, to convert the request signals into electrical ones and to forward the electrical request signals to the control unit CTRL.
  • the electrical request signals are fed to the microprocessor ⁇ P.
  • the identification number of the set-top box STB which is stored in the memory MEMO, and control and test bits, for example parity bits, which are calculated in the microprocessor ⁇ P, are added to the electrical request signals.
  • the resulting bit sequence is fed to the multiplexer MUX.
  • the multiplexer MUX is used in
  • Time-division multiplexing the bit sequences with the request signals and monitoring signals, which originate from the decoding unit DEK, are transmitted to the conversion unit U.
  • the monitoring signals contain, for example, information about which video film is currently being transmitted to the television set TV or whether the received signal power is sufficient for a given picture quality.
  • the conversion unit U there is a protocol conversion of the output signals of the multiplexer MUX into a packet data protocol, which can be transmitted in the packet-switched method in the signaling channel of the integrated service digital network ISDN.
  • the converted bit sequences and monitoring signals are routed via the means M and the S ⁇ interface to the switching center, where multiplexing takes place. They finally reach the server via the integrated digital network ISDN.
  • the means M is used both for sending signals in the packet data protocol and for receiving signals in the packet data protocol, which are forwarded to the conversion unit U.
  • the means M includes, for example, a dialing device, a D-channel monitoring unit, a receiver for receiving packet data and a transmitter for transmitting the request signals with the added bits and the monitoring signals via the interface S fi in a packet-switched method in a signaling channel of the integrated digital service ISDN network.
  • the means M receives control signals in the packet data protocol via the S fi interface. The control signals received are fed to the conversion unit U for protocol conversion. After the protocol has been implemented, they are transmitted to the decoding unit DEK via the microprocessor ⁇ P.
  • the control signals are used, for example, to confirm the request signals received on the SERVER server, to decrypt the requested service, to confirm the debit of bank accounts or to display the current account balance. Due to the transmission of the control signals in the integrated digital network ISDN, there is increased security against eavesdropping; compared to the transmission of the control signals via the CATV cable television distribution network. Furthermore, the transmission density in the cable television distribution network is reduced, which reduces the susceptibility to interference and thus improves the signal quality.
  • the video and audio signals are transmitted from the server to the participants via a cable television distribution network.
  • the cable television distribution network is e.g. a purely optical, purely electrical or a hybrid.
  • the video and audio signals can also be transmitted to the participants via a satellite connection, which would reduce the transmission density in the cable television distribution network.
  • control signals are transmitted from the server to the subscribers via the integrated digital network.
  • the control signals can also be transmitted in free channels of the cable television distribution network or the satellite connection.
  • the set-top box and the television are two separate devices.
  • the set-top box can also be integrated in the television, which means e.g. the supply of operating voltage for the set-top box is simplified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Pour réaliser des services interactifs, par exemple de la vidéo sur demande, un canal de retour doit être mis à la disposition de chaque abonné. Les signaux vidéo et audio d'un service interactif sont transmis par un serveur (SERVEUR) par l'intermédiaire d'un réseau de télévision par câble (CATV) ou d'une liaison par satellite jusqu'aux boîtes accessoires de communication (STB) des postes récepteurs de télévision des abonnés. Le canal de retour est réalisé dans un réseau numérique à intégration de services (RNIS). La boîte accessoire de communication (STB) de chaque abonné comprend une interface S0 (S0) qui lui donne accès au réseau numérique à intégration de services (RNIS). Les signaux de demande d'un service sont transmis par la boîte accessoire de communication (STB) au serveur (SERVEUR) dans un canal de signalisation du réseau numérique à intégration de services (RNIS) au moyen d'un procédé de transmission par paquets. La boîte accessoire de communication (STB) peut également recevoir des signaux de commande transmis par le réseau numérique à intégration de services (RNIS). En outre, le multiplexage de plusieurs canaux de signalisation est réalisé dans un centre de commutation.
EP97901007A 1995-12-20 1996-12-20 Boite accessoire de communication pour poste recepteur de television Withdrawn EP0811294A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19547604A DE19547604A1 (de) 1995-12-20 1995-12-20 Set-Top-Box
DE19547604 1995-12-20
PCT/EP1997/000117 WO1997023095A1 (fr) 1995-12-20 1996-12-20 Boite accessoire de communication pour poste recepteur de television

Publications (1)

Publication Number Publication Date
EP0811294A1 true EP0811294A1 (fr) 1997-12-10

Family

ID=7780673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97901007A Withdrawn EP0811294A1 (fr) 1995-12-20 1996-12-20 Boite accessoire de communication pour poste recepteur de television

Country Status (5)

Country Link
EP (1) EP0811294A1 (fr)
JP (1) JPH11501184A (fr)
CA (1) CA2211527A1 (fr)
DE (1) DE19547604A1 (fr)
WO (1) WO1997023095A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720989A1 (de) * 1997-05-20 1998-11-26 Alsthom Cge Alcatel Server zum Anbieten eines Dienstes
DE19929168A1 (de) * 1999-06-25 2000-12-28 Siemens Ag Telekommunikationsendgerät mit integrierter Set-Top-Box
FI20000624A0 (fi) * 2000-03-17 2000-03-17 Prikatti Ab Oy Parannettu menetelmä, järjestelmä ja liiketoimintamalli sähköisen vedonlyönnin järjestämiseksi
EP1202600A1 (fr) * 2000-10-31 2002-05-02 Alcatel Système d'accès à des réseaux de télécommunication dans un environnement multiservices
DE60324672D1 (de) * 2002-05-29 2008-12-24 Thomson Licensing Verfahren und vorrichtung zur ermöglichung der übertragung des signals eines drahtlosen rückkanals in einem satellitenkommunikationssystem
US20070245019A1 (en) * 2006-04-12 2007-10-18 United Video Properties, Inc. Interactive media content delivery using a backchannel communications network

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829372A (en) * 1987-08-20 1989-05-09 Telaction Corporation Presentation player
US5371532A (en) * 1992-05-15 1994-12-06 Bell Communications Research, Inc. Communications architecture and method for distributing information services
ES2154291T3 (es) * 1992-12-09 2001-04-01 Discovery Communicat Inc Controlador de red para sistemas de distribucion de programas de television por cable.
AU6699994A (en) * 1993-04-01 1994-10-24 Bell Atlantic Network Services, Inc. Method and system for accessing multimedia data over public switched telephone network
EP0625856B1 (fr) * 1993-05-19 1998-03-04 Alcatel Réseau de vidéo sur la demande
JPH07203420A (ja) * 1993-11-26 1995-08-04 Sony Corp 双方向放送方式およびその受信装置とその遠隔制御装置
US5459506A (en) * 1993-12-28 1995-10-17 At&T Corp. Enhanced pay per view system
US5570295A (en) * 1994-03-18 1996-10-29 Lucent Technologies Inc. System and method of capturing encoded data transmitted over a communications network in a video system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9723095A1 *

Also Published As

Publication number Publication date
WO1997023095A1 (fr) 1997-06-26
JPH11501184A (ja) 1999-01-26
CA2211527A1 (fr) 1997-06-26
DE19547604A1 (de) 1997-06-26

Similar Documents

Publication Publication Date Title
DE19811826A1 (de) Vorrichtung und Verfahren für das Bereitstellen eines PC-Kommunikations- und Internet-Dienstes unter Verwendung einer Set-Top-Box
DE69738628T2 (de) Kontrolle für einen globalen datentransportstrom
DE69124479T2 (de) Videonetzwerksystem
DE3789119T4 (de) Breitbandvermittlungssystem.
US5613190A (en) Customer premise wireless distribution of audio-video, control signals and voice
DE4229151A1 (de) Vorrichtung zur Übertragung von Videosignalen und Audiosignalen über ein diensteintegrierendes Nachrichtennetz
DE60034064T2 (de) Vorrichtung und verfahren für digitales fernsehen
DE112005002557T5 (de) Teilnehmerverwaltungssystem und -verfahren im digitalen Multimediafunk
EP0731619B1 (fr) Système de communication à large bande et son procédé
DE60208247T2 (de) Internet Service Provider Rückruf für Satelliten Systeme
DE60311219T2 (de) Sendevorrichtung, Empfängervorrichtung und Empfangsverfahren
WO1997023095A1 (fr) Boite accessoire de communication pour poste recepteur de television
EP0784891A1 (fr) Procede de protection de donnees dans un reseau de raccordement d'abonnes pouvant fonctionner de maniere bidirectionnelle
DE69922037T2 (de) Verbessertes kommunikationssicherheitssystem
DE602004010663T2 (de) Multimedianachrichtenübertragung zu einem Fernsehgerät
EP0760584B1 (fr) Système de transmission électrique avec un réseau de distribution à large bande pour signaux TV et audio et avec une possibilité pour des services interactifs
EP1709803B1 (fr) Distribution de messages courts a l'aide d'un equipement de commande video
DE60103617T2 (de) Verfahren zur kontrolle einer übertragung
DE10393979B4 (de) Vorrichtung und Verfahren für die Schaffung eines digitalen Rundfunkdienstes auf der Grundlage mehrerer Rundfunkstandorte und mehrerer Frequenzbänder
EP0624986B1 (fr) Répondeur vidéotéléphonique
EP0710024A2 (fr) Réseau domestique pour la connexion d'abonnés à un réseau de distribution public pour signaux vidéo et/ou audio
EP0701384B1 (fr) Système, équipement d'abonné, centrale et méthode pour vidéo à la demande
EP1296487A2 (fr) Procédé et dispositif de télécommunication pour la transmission des informations diffusées et/ou sur demande dans un réseau de télécommunication
DE19737906A1 (de) Gerät, Verfahren und System zur Durchführung von Audio- und Videokonferenzen und Telefonie
DE60305493T2 (de) Verfahren, Vorrichtung und System zur Verteilung von Mediakanälen über einem Kommunikationsnetz

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970911

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI SE

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

17Q First examination report despatched

Effective date: 19991011

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010703