CA2186368A1 - Methods for Providing Conditional Access Information to Decoders in a Packet-Based Multiplexed Communications System - Google Patents

Methods for Providing Conditional Access Information to Decoders in a Packet-Based Multiplexed Communications System

Info

Publication number
CA2186368A1
CA2186368A1 CA2186368A CA2186368A CA2186368A1 CA 2186368 A1 CA2186368 A1 CA 2186368A1 CA 2186368 A CA2186368 A CA 2186368A CA 2186368 A CA2186368 A CA 2186368A CA 2186368 A1 CA2186368 A1 CA 2186368A1
Authority
CA
Canada
Prior art keywords
access information
conditional access
packet
communications system
transport packets
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
CA2186368A
Other languages
French (fr)
Other versions
CA2186368C (en
Inventor
Anthony J. Wasilewski
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.)
Scientific Atlanta LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2186368A1 publication Critical patent/CA2186368A1/en
Application granted granted Critical
Publication of CA2186368C publication Critical patent/CA2186368C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/15—Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/19—Arrangements for conditional access to broadcast information or to broadcast-related services on transmission of information
    • 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]
    • H04N21/20—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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23614—Multiplexing of additional data and video streams
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4348—Demultiplexing of additional data and video streams
    • 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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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
    • H04N7/167—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
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Abstract

In a packet-based multiplexed communications system, a method of providing different sets of conditional access information to a remote location comprises the steps of: (a) for each different set of conditional access information, inserting the set of conditional access information into a respective sequence of transport packets and assigning a unique packet ID to the transport packet of that sequence, (b) generating a table (90) that specifies, for each of the different sets of conditional access information (94), the packet ID (98) of the transport packets that carry that set of conditional access information; and (c) transmitting the table (90) and the transport packets that carry each of the different sets of conditional access information to the remote location along with other information bearing transport packets. A decoder at the remote location can employ the transmitted table (90) to identify and extract the transport packets that carry a selected one of the sets of conditional access information.
CA002186368A 1994-03-29 1994-07-11 Methods for providing conditional access information to decoders in a packet-based multiplexed communications system Expired - Lifetime CA2186368C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/219,648 1994-03-29
US08/219,648 US5420866A (en) 1994-03-29 1994-03-29 Methods for providing conditional access information to decoders in a packet-based multiplexed communications system

Publications (2)

Publication Number Publication Date
CA2186368A1 true CA2186368A1 (en) 1995-10-05
CA2186368C CA2186368C (en) 1999-02-09

Family

ID=22820147

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002186368A Expired - Lifetime CA2186368C (en) 1994-03-29 1994-07-11 Methods for providing conditional access information to decoders in a packet-based multiplexed communications system

Country Status (5)

Country Link
US (1) US5420866A (en)
JP (1) JP2940639B2 (en)
AU (1) AU687844B2 (en)
CA (1) CA2186368C (en)
WO (1) WO1995026597A1 (en)

Families Citing this family (262)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6292568B1 (en) 1966-12-16 2001-09-18 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US5870474A (en) * 1995-12-04 1999-02-09 Scientific-Atlanta, Inc. Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
US6847611B1 (en) 1990-12-10 2005-01-25 At&T Corp. Traffic management for frame relay switched data service
US7168084B1 (en) 1992-12-09 2007-01-23 Sedna Patent Services, Llc Method and apparatus for targeting virtual objects
US9286294B2 (en) 1992-12-09 2016-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content suggestion engine
US6771617B1 (en) 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
ES2143622T3 (en) * 1994-04-15 2000-05-16 Koninkl Philips Electronics Nv ARRANGEMENT AND METHOD FOR TRANSMITTING AND RECEIVING VIDEO SIGNALS.
US5619501A (en) * 1994-04-22 1997-04-08 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
US5521979A (en) * 1994-04-22 1996-05-28 Thomson Consumer Electronics, Inc. Packet video signal inverse transport system
US5477263A (en) * 1994-05-26 1995-12-19 Bell Atlantic Network Services, Inc. Method and apparatus for video on demand with fast forward, reverse and channel pause
US6701370B1 (en) * 1994-06-08 2004-03-02 Hughes Electronics Corporation Network system with TCP/IP protocol spoofing
JPH09510596A (en) 1994-06-08 1997-10-21 エイチイー・ホールディングス・インコーポレーテッド・ディー ビーエー・ヒューズ・エレクトロニクス Apparatus and method for hybrid network access
US6473793B1 (en) * 1994-06-08 2002-10-29 Hughes Electronics Corporation Method and apparatus for selectively allocating and enforcing bandwidth usage requirements on network users
USRE38529E1 (en) 1994-06-24 2004-06-08 Sony Corporation Scramble/descramble method and apparatus for data broadcasting
JP3729529B2 (en) * 1994-10-28 2005-12-21 ソニー株式会社 Digital signal transmission / reception system
US5652795A (en) 1994-11-14 1997-07-29 Hughes Electronics Method and apparatus for an adapter card providing conditional access in a communication system
US5727065A (en) 1994-11-14 1998-03-10 Hughes Electronics Deferred billing, broadcast, electronic document distribution system and method
JP3437291B2 (en) * 1994-11-14 2003-08-18 キヤノン株式会社 Reproduction device and reproduction method
US6976266B1 (en) * 1994-12-23 2005-12-13 Thomson Licensing S.A. Apparatus and method for processing a program guide in a digital video system
US5590202A (en) * 1995-01-18 1996-12-31 Zenith Electronics Corporation Countdown system for conditional access module
DE69631393T2 (en) * 1995-03-29 2004-10-21 Hitachi Ltd Decoder for compressed and multiplexed image and audio data
US6424717B1 (en) 1995-04-03 2002-07-23 Scientific-Atlanta, Inc. Encryption devices for use in a conditional access system
US6246767B1 (en) 1995-04-03 2001-06-12 Scientific-Atlanta, Inc. Source authentication of download information in a conditional access system
US6252964B1 (en) * 1995-04-03 2001-06-26 Scientific-Atlanta, Inc. Authorization of services in a conditional access system
US6937729B2 (en) * 1995-04-03 2005-08-30 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US6157719A (en) * 1995-04-03 2000-12-05 Scientific-Atlanta, Inc. Conditional access system
US20040136532A1 (en) * 1995-04-03 2004-07-15 Pinder Howard G. Partial dual-encrypted stream utilizing program map tables
US8548166B2 (en) 1995-04-03 2013-10-01 Anthony J. Wasilewski Method for partially encrypting program data
US7224798B2 (en) * 1995-04-03 2007-05-29 Scientific-Atlanta, Inc. Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US6560340B1 (en) 1995-04-03 2003-05-06 Scientific-Atlanta, Inc. Method and apparatus for geographically limiting service in a conditional access system
US5602920A (en) * 1995-05-31 1997-02-11 Zenith Electronics Corporation Combined DCAM and transport demultiplexer
CA2179223C (en) * 1995-06-23 2009-01-06 Manfred Von Willich Method and apparatus for controlling the operation of a signal decoder in a broadcasting system
US5666487A (en) * 1995-06-28 1997-09-09 Bell Atlantic Network Services, Inc. Network providing signals of different formats to a user by multplexing compressed broadband data with data of a different format into MPEG encoded data stream
US5652615A (en) * 1995-06-30 1997-07-29 Digital Equipment Corporation Precision broadcast of composite programs including secondary program content such as advertisements
US5625693A (en) * 1995-07-07 1997-04-29 Thomson Consumer Electronics, Inc. Apparatus and method for authenticating transmitting applications in an interactive TV system
US5579317A (en) * 1995-08-15 1996-11-26 Lsi Logic Corporation Packet error propagation for MPEG transport demultiplexers
CN1115811C (en) * 1995-10-24 2003-07-23 皇家菲利浦电子有限公司 System for transferring data in re-assignable groups, transmitter and receiver for use in such a system, and method for transferring, transmitting and receiving such data
US5959659A (en) * 1995-11-06 1999-09-28 Stellar One Corporation MPEG-2 transport stream decoder having decoupled hardware architecture
US5966120A (en) * 1995-11-21 1999-10-12 Imedia Corporation Method and apparatus for combining and distributing data with pre-formatted real-time video
US6169843B1 (en) * 1995-12-01 2001-01-02 Harmonic, Inc. Recording and playback of audio-video transport streams
US5719937A (en) * 1995-12-06 1998-02-17 Solana Technology Develpment Corporation Multi-media copy management system
JP3986084B2 (en) 1995-12-07 2007-10-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Method and apparatus for encoding, transmitting and decoding a non-PCM bitstream between a digital versatile disk device and a multi-channel playback device
US5835487A (en) * 1995-12-08 1998-11-10 Worldspace International Network, Inc. Satellite direct radio broadcast system
US5899578A (en) * 1995-12-25 1999-05-04 Sony Corporation Digital signal processor, processing method, digital signal recording/playback device and digital signal playback method
US6172988B1 (en) 1996-01-31 2001-01-09 Tiernan Communications, Inc. Method for universal messaging and multiplexing of video, audio, and data streams
US6157674A (en) * 1996-03-21 2000-12-05 Sony Corporation Audio and video data transmitting apparatus, system, and method thereof
US6055314A (en) * 1996-03-22 2000-04-25 Microsoft Corporation System and method for secure purchase and delivery of video content programs
HRP970160A2 (en) * 1996-04-03 1998-02-28 Digco B V Method for providing a secure communication between two devices and application of this method
US6772435B1 (en) * 1996-04-15 2004-08-03 Nds Limited Digital video broadcast system
US5844478A (en) * 1996-05-31 1998-12-01 Thomson Consumer Electronics, Inc. Program specific information formation for digital data processing
US5844595A (en) * 1996-05-31 1998-12-01 Thomson Consumer Electronics, Inc. Decoding of digital data including program specific information
FR2751154B1 (en) * 1996-07-15 1998-09-11 Schlumberger Ind Sa INFORMATION DIVERSIFICATION SYSTEM IN A PRODUCT OR SERVICE DISTRIBUTION NETWORK
US5787089A (en) * 1996-07-25 1998-07-28 Northern Telecom Limited Digital signal broadcasting
US6020189A (en) * 1996-08-30 2000-02-01 The Johns Hopkins University School Of Medicine Fibroblast growth factor homologous factors (FHFs) and methods of use
US7292604B2 (en) * 1996-09-05 2007-11-06 The Directv Group, Inc. Device and method for efficient delivery of redundant national television signals
US6728269B1 (en) * 1996-09-05 2004-04-27 Hughes Electronics Corporation Device and method for efficient delivery of redundant national television signals
US5886995A (en) * 1996-09-05 1999-03-23 Hughes Electronics Corporation Dynamic mapping of broadcast resources
CA2267152A1 (en) 1996-10-08 1998-04-16 Tiernan Communications, Inc. Apparatus and method for multi-service transport multiplexing
KR100261706B1 (en) * 1996-12-17 2000-07-15 가나이 쓰도무 Digital broadcasting signal receiving device and, receiving and recording/reproducing apparatus
US6359656B1 (en) * 1996-12-20 2002-03-19 Intel Corporation In-band synchronization of data streams with audio/video streams
NZ500194A (en) * 1997-03-21 2000-12-22 Canal Plus Sa Broadcasting randomized subscriber entitlement management messages for digital television
WO1998043431A1 (en) * 1997-03-21 1998-10-01 Canal+ Societe Anonyme Method of downloading of data to an mpeg receiver/decoder and mpeg transmission system for implementing the same
AU776683B2 (en) * 1997-03-21 2004-09-16 Thomson Licensing S.A. Method of downloading of data to an MPEG receiver/decoder and MPEG transmission system for implementing the same
US6356948B1 (en) * 1997-03-28 2002-03-12 Aspect Communications Corp Method and apparatus for managing data
AU729580B2 (en) * 1997-04-01 2001-02-01 Matsushita Electric Industrial Co., Ltd. Digital communication system, transmitter, and data selecting apparatus
US7113523B1 (en) * 1997-06-11 2006-09-26 Sony Corporation Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device
JP3791720B2 (en) 1997-06-11 2006-06-28 ソニー株式会社 Transmission apparatus and transmission method
US6970564B1 (en) * 1998-07-13 2005-11-29 Sony Corporation Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device
US6081524A (en) 1997-07-03 2000-06-27 At&T Corp. Frame relay switched data service
JP3058263B2 (en) * 1997-07-23 2000-07-04 日本電気株式会社 Data transmission device, data reception device
EP0893921A1 (en) * 1997-07-25 1999-01-27 Scientific Atlanta, Inc. Programmable two-level packet filter
BR9815600A (en) * 1997-08-01 2004-06-29 Scientific Atlanta Method and apparatus for encapsulating an enabling authorization in a conditional access system
EP1010323B1 (en) * 1997-08-01 2001-10-31 Scientific-Atlanta, Inc. Verification of the source of program of information in a conditional access system
US7515712B2 (en) * 1997-08-01 2009-04-07 Cisco Technology, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
EP0903886B1 (en) * 1997-09-18 2006-03-15 Matsushita Electric Industrial Co., Ltd. Information transmission method and apparatus for combining multiplexing and encryption
FR2769779B1 (en) * 1997-10-14 1999-11-12 Thomson Multimedia Sa METHOD FOR CONTROLLING ACCESS TO A HOME NETWORK AND DEVICE IMPLEMENTING THE METHOD
US6925577B1 (en) * 1997-11-14 2005-08-02 Sony International (Europe) Gmbh Method for recording/storing multiple transport streams by dividing into series of packets
EP0917356A1 (en) * 1997-11-17 1999-05-19 CANAL+ Société Anonyme Packet filtering
KR100252972B1 (en) * 1997-12-31 2000-04-15 구자홍 Conditional access system
US6292490B1 (en) * 1998-01-14 2001-09-18 Skystream Corporation Receipts and dispatch timing of transport packets in a video program bearing stream remultiplexer
US6148082A (en) * 1998-01-14 2000-11-14 Skystream Corporation Scrambling and descrambling control word control in a remultiplexer for video bearing transport streams
IL137277A (en) * 1998-01-14 2006-10-05 Skystream Corp Video program bearing transport stream remultiplexer
US6064676A (en) * 1998-01-14 2000-05-16 Skystream Corporation Remultipelxer cache architecture and memory organization for storing video program bearing transport packets and descriptors
US6246701B1 (en) 1998-01-14 2001-06-12 Skystream Corporation Reference time clock locking in a remultiplexer for video program bearing transport streams
US6195368B1 (en) * 1998-01-14 2001-02-27 Skystream Corporation Re-timing of video program bearing streams transmitted by an asynchronous communication link
US6351474B1 (en) * 1998-01-14 2002-02-26 Skystream Networks Inc. Network distributed remultiplexer for video program bearing transport streams
US6351471B1 (en) * 1998-01-14 2002-02-26 Skystream Networks Inc. Brandwidth optimization of video program bearing transport streams
KR20010005574A (en) * 1998-01-23 2001-01-15 요트.게.아. 롤페즈 Conditional access
US20030121043A1 (en) * 1998-05-04 2003-06-26 Juergen Reinold Method and system for broadcasting digital audio and video to an analog wireless device
US6335768B1 (en) * 1998-05-04 2002-01-01 Motorola Inc. Method and system for broadcasting digital audio and video to an analog wireless device
EP0964573A1 (en) * 1998-06-11 1999-12-15 THOMSON multimedia Method and apparatus for enlarging DVB-CI functionality by enabling a direct access to the Conditional Access Module
KR100617896B1 (en) * 1998-06-12 2006-09-05 코닌클리케 필립스 일렉트로닉스 엔.브이. Transmission system
US6717620B1 (en) * 1998-06-12 2004-04-06 Ati Technologies, Inc. Method and apparatus for decompressing compressed data
EP1022900A1 (en) * 1998-07-13 2000-07-26 Sony Corporation Data multiplexer, program distribution system, program transmission system, toll broadcast system, program transmission method, limited receiving system, and data receiver
FR2781324B1 (en) * 1998-07-20 2000-09-08 Sagem METHOD FOR TECHNICAL UPDATING OF A PACKET BROADCAST DATA RECEIVER AND REMOVABLE COMPUTER MEDIA FOR IMPLEMENTING THE METHOD
US6754905B2 (en) 1998-07-23 2004-06-22 Diva Systems Corporation Data structure and methods for providing an interactive program guide
US9924234B2 (en) 1998-07-23 2018-03-20 Comcast Ip Holdings I, Llc Data structure and methods for providing an interactive program
EP1097587A1 (en) 1998-07-23 2001-05-09 Diva Systems Corporation Interactive user interface
US6771597B2 (en) * 1998-07-31 2004-08-03 International Business Machines Corporation Method and apparatus for transmitting messages
US7457415B2 (en) * 1998-08-20 2008-11-25 Akikaze Technologies, Llc Secure information distribution system utilizing information segment scrambling
EP0984630B1 (en) 1998-09-01 2006-08-23 Irdeto Access B.V. Data communication system
DE69834396T2 (en) 1998-09-01 2007-02-22 Irdeto Access B.V. Secure data signal transmission system
JP4382178B2 (en) * 1998-09-11 2009-12-09 パナソニック株式会社 Receiver
US6816491B1 (en) * 1998-11-04 2004-11-09 Hitachi, Ltd. Multiplexed audio data decoding apparatus and receiver apparatus
JP2002529844A (en) * 1998-11-10 2002-09-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ How to supply content as software objects for copyright protection
US6944299B1 (en) * 1998-12-02 2005-09-13 At&T Wireless Services, Inc. Method for synchronous encryption over a communication medium
WO2000045598A1 (en) * 1999-01-28 2000-08-03 Koninklijke Philips Electronics N.V. Transmission system
US6934255B1 (en) 1999-02-02 2005-08-23 Packeteer, Inc. Internet over satellite apparatus
DE19906432C1 (en) * 1999-02-16 2000-06-21 Fraunhofer Ges Forschung Second data stream generation method from first stream including start and functional audiovisual, data blocks, involves insertion of origination information
JP4356131B2 (en) * 1999-02-19 2009-11-04 ソニー株式会社 Digital broadcast transmission method and digital broadcast transmission apparatus
US6415031B1 (en) * 1999-03-12 2002-07-02 Diva Systems Corporation Selective and renewable encryption for secure distribution of video on-demand
US6229895B1 (en) 1999-03-12 2001-05-08 Diva Systems Corp. Secure distribution of video on-demand
CA2366301C (en) * 1999-03-15 2010-07-13 Thomson Licensing S.A. A global copy protection system for digital home networks
US7730300B2 (en) * 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US7565546B2 (en) 1999-03-30 2009-07-21 Sony Corporation System, method and apparatus for secure digital content transmission
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US7096487B1 (en) 1999-10-27 2006-08-22 Sedna Patent Services, Llc Apparatus and method for combining realtime and non-realtime encoded content
US6968567B1 (en) * 1999-04-15 2005-11-22 Sedna Patent Services, Llc Latency reduction in providing interactive program guide
US6904610B1 (en) 1999-04-15 2005-06-07 Sedna Patent Services, Llc Server-centric customized interactive program guide in an interactive television environment
US6754271B1 (en) 1999-04-15 2004-06-22 Diva Systems Corporation Temporal slice persistence method and apparatus for delivery of interactive program guide
CN1355997A (en) * 1999-04-21 2002-06-26 通用仪器公司 Method and system for locating-control channel and data transport steam within signal received by set-top box from cable TV. system
US6718374B1 (en) 1999-04-21 2004-04-06 General Instrument Corporation Method and system for identifying and downloading appropriate software or formware specific to a particular model of set-top box in a cable television system
US7607022B1 (en) * 1999-06-11 2009-10-20 General Instrument Corporation Configurable encryption/decryption for multiple services support
US6904611B1 (en) * 1999-09-03 2005-06-07 General Instrument Corporation Method and system for directing the download of software and firmware objects over a network such as a cable television system
US6813271B1 (en) * 1999-09-30 2004-11-02 Nortel Networks Limited Satellite communications system and method of supporting ATM cell transmissions in a DVB environment
US7254236B1 (en) * 1999-10-06 2007-08-07 Thomson Licensing Method and system for handling two CA systems in a same receiver
EP1226717B1 (en) * 1999-10-06 2004-07-21 Thomson Licensing S.A. Method of accessing transmitted audio/video data protected according to different conditional access systems by a same apparatus
ES2220558T3 (en) * 1999-10-19 2004-12-16 Thomson Licensing S.A. SYSTEM AND METHOD OF VERIFICATION OF AUTHORIZATION FOR COMMUNICATIONS OF PROTECTED CONTENT.
US7356848B1 (en) 1999-10-19 2008-04-08 Thomson Licensing System and method of verifying authorization for communicating protected content
CA2388606C (en) 1999-10-27 2009-12-29 Diva Systems Corporation Picture-in-picture and multiple video streams using slice-based encoding
US6912513B1 (en) * 1999-10-29 2005-06-28 Sony Corporation Copy-protecting management using a user scrambling key
IL149178A0 (en) 1999-11-02 2002-11-10 Thomson Licensing Sa Method and system for adding a conditional access system
US7039614B1 (en) * 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US9668011B2 (en) * 2001-02-05 2017-05-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Single chip set-top box system
US20010013121A1 (en) * 1999-11-12 2001-08-09 Kimball Bridget D. Authorization conditioned object message download
US7298846B2 (en) * 1999-12-13 2007-11-20 Scientific-Atlanta, Inc. Method of identifying multiple digital streams within a multiplexed signal
US8098973B2 (en) * 2000-01-10 2012-01-17 Koninklijke Philips Electronics N.V. Method of setting a system time clock at the start of an MPEG sequence
US7069578B1 (en) * 2000-02-04 2006-06-27 Scientific-Atlanta, Inc. Settop cable television control device and method including bootloader software and code version table for maintaining and updating settop receiver operating system software
US7225164B1 (en) 2000-02-15 2007-05-29 Sony Corporation Method and apparatus for implementing revocation in broadcast networks
EP2271170B1 (en) * 2000-03-03 2012-09-05 Qualcomm Incorporated Method and apparatus for participating in group communication services in an existing communication system
US6697381B1 (en) * 2000-03-09 2004-02-24 L3 Communications Packet channel architecture
KR100841411B1 (en) * 2000-03-14 2008-06-25 소니 가부시끼 가이샤 Transmission apparatus, reception apparatus, transmission method, reception method and recording medium
US20030053927A1 (en) * 2000-03-31 2003-03-20 Dober Chemical Corporation Controlled Rellease of oxygen scavengers in cooling systems
JP3518488B2 (en) * 2000-06-01 2004-04-12 三菱電機株式会社 Satellite communication data distribution method, slave station and master station used in the method
US20040205812A1 (en) * 2000-06-22 2004-10-14 Candelore Brant L. Method and apparatus for routing program data in a program viewing unit
US20020025045A1 (en) * 2000-07-26 2002-02-28 Raike William Michael Encryption processing for streaming media
GB0019820D0 (en) * 2000-08-12 2000-09-27 Koninkl Philips Electronics Nv Selective delivery of data
US7165175B1 (en) * 2000-09-06 2007-01-16 Widevine Technologies, Inc. Apparatus, system and method for selectively encrypting different portions of data sent over a network
GB0026208D0 (en) * 2000-10-26 2000-12-13 Koninkl Philips Electronics Nv A decoder supporting multiple inputs
US7839890B1 (en) * 2000-11-02 2010-11-23 Fisher-Rosemount Systems, Inc. Multiplexed data transmissions through a communication link
US20020112175A1 (en) * 2000-12-13 2002-08-15 Makofka Douglas S. Conditional access for functional units
EP1215905B2 (en) 2000-12-15 2010-04-21 Panasonic Corporation Reception apparatus having a storage unit for recording a scrambled broadcast signal and broadcast apparatus for scrambling a signal to be broadcast, and associated methods
KR100525389B1 (en) * 2001-01-17 2005-11-02 엘지전자 주식회사 Scrambler/descrambler of real time input stream
DE60202139T2 (en) 2001-05-14 2005-12-01 Scm Microsystems Gmbh SIMULTANEOUS DIGITAL TELEVISION TREES WITH CONDITIONAL ACCESS
US7995603B2 (en) * 2001-05-22 2011-08-09 Nds Limited Secure digital content delivery system and method over a broadcast network
US7496092B2 (en) * 2001-06-04 2009-02-24 Cisco Technology, Inc. System and method for allocating packet identifiers in a transport stream in a subscriber network
US7127619B2 (en) * 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
US7350082B2 (en) 2001-06-06 2008-03-25 Sony Corporation Upgrading of encryption
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7383561B2 (en) * 2001-06-29 2008-06-03 Nokia Corporation Conditional access system
US7908628B2 (en) 2001-08-03 2011-03-15 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator content coding and formatting
US7793326B2 (en) 2001-08-03 2010-09-07 Comcast Ip Holdings I, Llc Video and digital multimedia aggregator
US8880709B2 (en) * 2001-09-12 2014-11-04 Ericsson Television Inc. Method and system for scheduled streaming of best effort data
MXPA04002726A (en) * 2001-09-25 2005-10-05 Thomson Licensing Sa Ca system for broadcast dtv using multiple keys for different service providers and service areas.
US7088398B1 (en) 2001-12-24 2006-08-08 Silicon Image, Inc. Method and apparatus for regenerating a clock for auxiliary data transmitted over a serial link with video data
WO2003058946A2 (en) * 2001-12-24 2003-07-17 Silicon Image, Inc. Method and system for video and auxiliary data transmission over a serial link
KR100411586B1 (en) * 2001-12-28 2003-12-18 한국전자통신연구원 Method and apparatus for descrambling of transport stream data
US20030123657A1 (en) * 2001-12-31 2003-07-03 General Instrument Corporation Methods and apparatus for simultaneously decrypting multiple services received on separate multiplexed transport streams
US7039938B2 (en) * 2002-01-02 2006-05-02 Sony Corporation Selective encryption for video on demand
WO2003061173A2 (en) 2002-01-02 2003-07-24 Sony Electronics Inc. Elementary stream partial encryption
US7292690B2 (en) 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
EP2343891B1 (en) * 2002-01-02 2013-09-18 Sony Electronics, Inc. Partial Encryption and PID mapping
US7233669B2 (en) * 2002-01-02 2007-06-19 Sony Corporation Selective encryption to enable multiple decryption keys
US7376233B2 (en) 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7242773B2 (en) * 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
KR101053376B1 (en) * 2002-01-02 2011-08-01 소니 일렉트로닉스 인코포레이티드 Time Division Partial Encryption
US7218738B2 (en) * 2002-01-02 2007-05-15 Sony Corporation Encryption and content control in a digital broadcast system
US7292691B2 (en) 2002-01-02 2007-11-06 Sony Corporation Progressive video refresh slice detection
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
KR100943131B1 (en) * 2002-01-02 2010-02-18 소니 일렉트로닉스 인코포레이티드 Decoding and decryption of partially encrypted information
US7302059B2 (en) * 2002-01-02 2007-11-27 Sony Corporation Star pattern partial encryption
US7155012B2 (en) 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
KR100924053B1 (en) 2002-01-02 2009-10-27 소니 일렉트로닉스 인코포레이티드 Critical packet partial encryption
EP1464174B1 (en) * 2002-01-02 2012-02-08 Sony Electronics, Inc. Critical packet partial encryption
EP1461952B1 (en) * 2002-01-02 2011-11-23 Sony Electronics, Inc. Partial encryption and pid mapping
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
AU2002360605A1 (en) * 2002-01-02 2003-07-30 Sony Electronics Inc. Time division partial encryption
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
DE10216384A1 (en) * 2002-04-12 2003-10-30 Scm Microsystems Gmbh Access control network
US7356147B2 (en) * 2002-04-18 2008-04-08 International Business Machines Corporation Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient
AU2003216617A1 (en) 2002-04-19 2003-11-03 Koninklijke Philips Electronics N.V. Conditional access system and apparatus
US7870575B2 (en) * 2002-04-29 2011-01-11 The Boeing Company Methodology for display/distribution of multiple content versions based on demographics
JP3950010B2 (en) * 2002-05-17 2007-07-25 株式会社エヌ・ティ・ティ・ドコモ Data processing apparatus, program, and recording medium
US7530084B2 (en) * 2002-05-28 2009-05-05 Sony Corporation Method and apparatus for synchronizing dynamic graphics
US7343398B1 (en) 2002-09-04 2008-03-11 Packeteer, Inc. Methods, apparatuses and systems for transparently intermediating network traffic over connection-based authentication protocols
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US8572408B2 (en) * 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7724907B2 (en) * 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US7225458B2 (en) * 2002-11-21 2007-05-29 The Directv Group, Inc. Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers
US7000241B2 (en) * 2002-11-21 2006-02-14 The Directv Group, Inc. Method and apparatus for minimizing conditional access information overhead while ensuring conditional access information reception in multi-tuner receivers
US8667525B2 (en) * 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
US8645988B2 (en) 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
FR2849980B1 (en) * 2003-01-15 2005-04-08 Medialive METHOD FOR THE DISTRIBUTION OF VIDEO SEQUENCES, DECODER AND SYSTEM FOR THE IMPLEMENTATION OF THIS PRODUCT
US20040165586A1 (en) * 2003-02-24 2004-08-26 Read Christopher Jensen PID filters based network routing
US20040181811A1 (en) * 2003-03-13 2004-09-16 Rakib Selim Shlomo Thin DOCSIS in-band management for interactive HFC service delivery
US7409702B2 (en) 2003-03-20 2008-08-05 Sony Corporation Auxiliary program association table
US7292692B2 (en) * 2003-03-25 2007-11-06 Sony Corporation Content scrambling with minimal impact on legacy devices
FR2853786B1 (en) * 2003-04-11 2005-08-05 Medialive METHOD AND EQUIPMENT FOR DISTRIBUTING DIGITAL VIDEO PRODUCTS WITH A RESTRICTION OF CERTAIN AT LEAST REPRESENTATION AND REPRODUCTION RIGHTS
US7310423B2 (en) * 2003-04-24 2007-12-18 General Instrument Corporation Processing multiple encrypted transport streams
US7132953B2 (en) * 2003-06-26 2006-11-07 Lear Corporation Spring sensor assembly for a vehicle seat cushion
EP1499062B1 (en) * 2003-07-17 2007-12-12 Thomson Licensing Individual video encryption system and method
EP1499061A1 (en) * 2003-07-17 2005-01-19 Deutsche Thomson-Brandt Gmbh Individual video encryption system and method
US7693222B2 (en) * 2003-08-13 2010-04-06 Ericsson Television Inc. Method and system for re-multiplexing of content-modified MPEG-2 transport streams using PCR interpolation
US7286667B1 (en) 2003-09-15 2007-10-23 Sony Corporation Decryption system
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US7263187B2 (en) * 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
US7346163B2 (en) 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US7343013B2 (en) 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US20050097597A1 (en) * 2003-10-31 2005-05-05 Pedlow Leo M.Jr. Hybrid storage of video on demand content
US7620180B2 (en) 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
US8396216B2 (en) 2003-11-21 2013-03-12 Howard G. Pinder Partial dual-encryption using program map tables
EP1545130A1 (en) * 2003-12-16 2005-06-22 Nagravision S.A. Process for updating access rights to conditional access data
US7490236B2 (en) 2004-01-14 2009-02-10 Cisco Technology, Inc. Conditional access overlay partial encryption using MPEG transport continuity counter
US20060036551A1 (en) * 2004-03-26 2006-02-16 Microsoft Corporation Protecting elementary stream content
US20060184790A1 (en) * 2004-03-26 2006-08-17 Microsoft Corporation Protecting elementary stream content
US7590243B2 (en) * 2004-05-04 2009-09-15 The Directv Group, Inc. Digital media conditional access system for handling digital media content
US7543317B2 (en) * 2004-08-17 2009-06-02 The Directv Group, Inc. Service activation of set-top box functionality using broadcast conditional access system
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US7386128B2 (en) * 2004-12-29 2008-06-10 General Instrument Corporation Conditional access system providing access to multiple programs or services
JP4667108B2 (en) * 2005-04-11 2011-04-06 パナソニック株式会社 Data processing device
US8189786B2 (en) * 2005-05-25 2012-05-29 Zenith Electronics Llc Encryption system
US8144868B2 (en) * 2005-05-25 2012-03-27 Zenith Electronics Llc Encryption/decryption of program data but not PSI data
US7778169B2 (en) * 2005-09-02 2010-08-17 Cisco Technology, Inc. Packetizing media for a time slotted communication system
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US7555464B2 (en) 2006-03-01 2009-06-30 Sony Corporation Multiple DRM management
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
US20090196300A1 (en) * 2006-06-27 2009-08-06 Universitat Zurich Prorektorat Forschung Method for forwarding data packets and communication network having flooding transport properties
US7917747B2 (en) * 2007-03-22 2011-03-29 Igt Multi-party encryption systems and methods
CN101790865B (en) * 2007-05-22 2012-10-24 耶德托公司 Updating cryptographic key data
KR101572877B1 (en) * 2007-09-21 2015-11-30 엘지전자 주식회사 Digital broadcasting receiver and method for controlling the same
US7809139B2 (en) * 2007-09-21 2010-10-05 Lg Electronics, Inc. Digital broadcasting system and method of processing data in digital broadcasting system
KR100901970B1 (en) * 2007-12-06 2009-06-10 한국전자통신연구원 The method and apparauts for providing downloadable conditional access service using distribution key
CN102027467A (en) * 2008-05-27 2011-04-20 多基有限公司 Non-linear representation of video data
FR2933564A1 (en) * 2008-07-02 2010-01-08 Thomson Licensing METHOD OF LOCKING AND UNLOCKING FOR THE TRANSPORT OF MPEG2 VIDEO AUDIO DATA FLOW
US8204220B2 (en) * 2008-09-18 2012-06-19 Sony Corporation Simulcrypt key sharing with hashed keys
US8244531B2 (en) * 2008-09-28 2012-08-14 Avaya Inc. Method of retaining a media stream without its private audio content
US9268735B2 (en) * 2008-09-30 2016-02-23 Oracle America, Inc. Loadable and modular conditional access application
KR101133256B1 (en) * 2009-02-27 2012-04-09 한국과학기술원 Apparatus and method for processing timestamp using signature information in physical layer
EP2540054B1 (en) * 2010-02-24 2017-11-29 Telefonaktiebolaget LM Ericsson (publ) Play-out control for a media data stream
US9009756B2 (en) 2011-04-13 2015-04-14 Comcast Cable Communications, Llc Virtual channel map masking
US9154813B2 (en) 2011-06-09 2015-10-06 Comcast Cable Communications, Llc Multiple video content in a composite video stream
US20130129095A1 (en) * 2011-11-18 2013-05-23 Comcast Cable Communications, Llc Key Delivery
US9008308B2 (en) * 2012-02-08 2015-04-14 Vixs Systems, Inc Container agnostic decryption device and methods for use therewith
JP5979948B2 (en) * 2012-04-11 2016-08-31 キヤノン株式会社 Image data transmitting apparatus and image data receiving apparatus
JP5979949B2 (en) 2012-04-11 2016-08-31 キヤノン株式会社 Image data transmitting apparatus and image data receiving apparatus
RU2628187C2 (en) 2012-05-10 2017-08-15 Сони Корпорейшн Transmitting device, transmitting method, receiver, receiving method, program, flow transmission and receiving system, and electronic device
JP6549605B2 (en) * 2014-03-18 2019-07-24 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Audiovisual content item data stream
CN107623867A (en) * 2016-07-13 2018-01-23 络达科技股份有限公司 Have the top box of digital machine of positioning function and apply its satellite television receiving system
US11637685B2 (en) 2021-08-31 2023-04-25 Samsung Display Co., Ltd. System and method for transition encoding with flexible word-size

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI8310221A8 (en) * 1982-02-04 1995-10-31 Wellcome Found Process for obtaining new pyridil compounds
US5319707A (en) * 1992-11-02 1994-06-07 Scientific Atlanta System and method for multiplexing a plurality of digital program services for transmission to remote locations

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