CA2331419A1 - Appareil et un procede de distribution de programmes audio et video de haute qualite a des sites decentralises - Google Patents

Appareil et un procede de distribution de programmes audio et video de haute qualite a des sites decentralises Download PDF

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Publication number
CA2331419A1
CA2331419A1 CA002331419A CA2331419A CA2331419A1 CA 2331419 A1 CA2331419 A1 CA 2331419A1 CA 002331419 A CA002331419 A CA 002331419A CA 2331419 A CA2331419 A CA 2331419A CA 2331419 A1 CA2331419 A1 CA 2331419A1
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CA
Canada
Prior art keywords
information
presentation
image
data
compressed
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.)
Granted
Application number
CA002331419A
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English (en)
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CA2331419C (fr
Inventor
Steven A. Morley
Gregory L. Westling
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Qualcomm Inc
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Individual
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Publication of CA2331419A1 publication Critical patent/CA2331419A1/fr
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Publication of CA2331419C publication Critical patent/CA2331419C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4131—Peripherals receiving signals from specially adapted client devices home appliance, e.g. lighting, air conditioning system, metering devices
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
    • 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
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • 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
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/165—Centralised control of user terminal ; Registering at central
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • 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
    • H04N7/17336—Handling of requests in head-ends

Abstract

L'invention porte sur un appareil et un procédé de distribution de programmes audio et vidéo de très haute qualité à partir d'un ou plusieurs centraux (102) à destination d'un ou plusieurs sites de présentation (56, 104) tels que des théâtres à l'aide de liaisons à grand débit de données, par exemple par satellites (106). Au niveau d'un central (102), se trouvent: un système source (108) générant le signal électronique de programme à partir d'un signal analogique, un système de compression/cryptage (110) codant et cryptant sous forme numérique le signal électronique, un système de modulation/émission (114) traitant le signal en vue de sa transmission par satellite (106) ainsi qu'un système de gestion du fonctionnement du réseau (112). Au niveau du théâtre (56) ou d'un autre site, se trouvent un récepteur/démodulateur (120) recevant le signal transmis par satellite (106), et un système de gestion (122) du théâtre commandant le stockage, l'acheminement, le décodage et la présentation du programme reçu. Les dispositifs de stockage (124A-124N) dudit système (104A-104N) assurent le stockage centralisé des programmes qui sont acheminés par l'intermédiaire un réseau local vers différents auditoriums dont plusieurs peuvent fonctionner à l'intérieur du système (104A-104N) de théâtre. Dans chaque auditorium les programmes sont décompressés puis décryptés en vue de leur présentation à l'aide d'équipements électroniques de projection (132A) et de d'équipements acoustiques (134A) classiques pour auditoriums.
CA2331419A 1998-05-08 1999-04-30 Appareil et un procede de distribution de programmes audio et video de haute qualite a des sites decentralises Expired - Fee Related CA2331419C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7515298A 1998-05-08 1998-05-08
US09/075,152 1998-05-08
PCT/US1999/009418 WO1999059335A1 (fr) 1998-05-08 1999-04-30 Appareil et un procede de distribution de programmes audio et video de haute qualite a des sites decentralises

Publications (2)

Publication Number Publication Date
CA2331419A1 true CA2331419A1 (fr) 1999-11-18
CA2331419C CA2331419C (fr) 2010-02-09

Family

ID=22123901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2331419A Expired - Fee Related CA2331419C (fr) 1998-05-08 1999-04-30 Appareil et un procede de distribution de programmes audio et video de haute qualite a des sites decentralises

Country Status (23)

Country Link
EP (1) EP1078517A1 (fr)
JP (3) JP2002515701A (fr)
KR (1) KR100671188B1 (fr)
CN (1) CN1252996C (fr)
AR (1) AR015084A1 (fr)
AU (1) AU767624B2 (fr)
BR (1) BR9910259A (fr)
CA (1) CA2331419C (fr)
HK (1) HK1037830A1 (fr)
HU (1) HUP0200780A2 (fr)
ID (1) ID30300A (fr)
IL (1) IL139412A0 (fr)
IS (1) IS5705A (fr)
MX (1) MXPA00010957A (fr)
NO (1) NO20005619L (fr)
NZ (1) NZ507867A (fr)
PL (1) PL193224B1 (fr)
RU (1) RU2238614C2 (fr)
TR (1) TR200100162T2 (fr)
TW (1) TW454419B (fr)
UA (1) UA63006C2 (fr)
WO (1) WO1999059335A1 (fr)
ZA (1) ZA200006134B (fr)

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Also Published As

Publication number Publication date
NO20005619D0 (no) 2000-11-07
ZA200006134B (en) 2002-01-30
UA63006C2 (en) 2004-01-15
AU767624B2 (en) 2003-11-20
CN1252996C (zh) 2006-04-19
PL193224B1 (pl) 2007-01-31
TR200100162T2 (tr) 2001-07-23
CA2331419C (fr) 2010-02-09
JP2012191633A (ja) 2012-10-04
IL139412A0 (en) 2001-11-25
JP5490846B2 (ja) 2014-05-14
AR015084A1 (es) 2001-04-11
WO1999059335A1 (fr) 1999-11-18
NZ507867A (en) 2003-01-31
TW454419B (en) 2001-09-11
JP2002515701A (ja) 2002-05-28
PL348663A1 (en) 2002-06-03
RU2238614C2 (ru) 2004-10-20
HK1037830A1 (en) 2002-02-15
KR100671188B1 (ko) 2007-01-18
AU3774799A (en) 1999-11-29
ID30300A (id) 2001-11-22
NO20005619L (no) 2000-12-21
BR9910259A (pt) 2001-10-02
CN1316158A (zh) 2001-10-03
MXPA00010957A (es) 2002-04-24
HUP0200780A2 (en) 2002-07-29
EP1078517A1 (fr) 2001-02-28
IS5705A (is) 2000-11-07
KR20010043462A (ko) 2001-05-25
JP2012213164A (ja) 2012-11-01

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