WO2004095827A3 - Content scrambling with minimal impact on legacy devices - Google Patents

Content scrambling with minimal impact on legacy devices Download PDF

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Publication number
WO2004095827A3
WO2004095827A3 PCT/US2004/005703 US2004005703W WO2004095827A3 WO 2004095827 A3 WO2004095827 A3 WO 2004095827A3 US 2004005703 W US2004005703 W US 2004005703W WO 2004095827 A3 WO2004095827 A3 WO 2004095827A3
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WO
WIPO (PCT)
Prior art keywords
content
tvs
clear
encryption
ref
Prior art date
Application number
PCT/US2004/005703
Other languages
French (fr)
Other versions
WO2004095827A2 (en
Inventor
James Bonan
Brant L Candelore
Mark Kenneth Eyer
Original Assignee
Sony Electronics Inc
James Bonan
Brant L Candelore
Mark Kenneth Eyer
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 Sony Electronics Inc, James Bonan, Brant L Candelore, Mark Kenneth Eyer filed Critical Sony Electronics Inc
Priority to JP2006508842A priority Critical patent/JP5022029B2/en
Priority to EP04715623A priority patent/EP1606930A4/en
Publication of WO2004095827A2 publication Critical patent/WO2004095827A2/en
Publication of WO2004095827A3 publication Critical patent/WO2004095827A3/en

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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
    • 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
    • H04N21/234—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
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • 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]
    • H04N21/40—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
    • 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
    • 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
    • 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

Abstract

An encryption arrangement for television programs or other digital programming consistent with certain embodiments sends content completely in-the-clear and also encrypts only a portion of the content required for full presentation of a television program. The arrangement allows interoperability between new TVs (Figure 2 ref.”220”) that can handle encryption and older TVs (Figure 2 ref.”215”) that cannot (.Regulations prevent new TVs from receiving only the clear content. New TVs are made to descramble the encrypted portions of the content. Older legacy TVs can receive all the content in the clear. The encrypted portions are chosen so that dramatically less bandwidth is required as compared to full dual carriage of the content. Licensing provisions relating to the encryption technology can be used to control unauthorized use of content. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
PCT/US2004/005703 2003-03-25 2004-02-27 Content scrambling with minimal impact on legacy devices WO2004095827A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006508842A JP5022029B2 (en) 2003-03-25 2004-02-27 Content scrambling with minimal impact on legacy devices
EP04715623A EP1606930A4 (en) 2003-03-25 2004-02-27 Content scrambling with minimal impact on legacy devices

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US45719203P 2003-03-25 2003-03-25
US60/457,192 2003-03-25
US10/767,421 2004-01-29
US10/767,421 US7292692B2 (en) 2003-03-25 2004-01-29 Content scrambling with minimal impact on legacy devices

Publications (2)

Publication Number Publication Date
WO2004095827A2 WO2004095827A2 (en) 2004-11-04
WO2004095827A3 true WO2004095827A3 (en) 2005-05-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/005703 WO2004095827A2 (en) 2003-03-25 2004-02-27 Content scrambling with minimal impact on legacy devices

Country Status (5)

Country Link
US (2) US7292692B2 (en)
EP (1) EP1606930A4 (en)
JP (1) JP5022029B2 (en)
KR (1) KR101019857B1 (en)
WO (1) WO2004095827A2 (en)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7747853B2 (en) * 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
US7124303B2 (en) * 2001-06-06 2006-10-17 Sony Corporation Elementary stream partial encryption
US7376233B2 (en) * 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7302059B2 (en) 2002-01-02 2007-11-27 Sony Corporation Star pattern partial encryption
US8051443B2 (en) * 2002-01-02 2011-11-01 Sony Corporation Content replacement by PID mapping
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7155012B2 (en) 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
US8027470B2 (en) * 2002-01-02 2011-09-27 Sony Corporation Video slice and active region based multiple partial encryption
US7215770B2 (en) 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7292690B2 (en) 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
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
SG129240A1 (en) * 2003-01-23 2007-02-26 Agency Science Tech & Res Biodegradable copolymer and nucleic acid delivery system
US7292692B2 (en) * 2003-03-25 2007-11-06 Sony Corporation Content scrambling with minimal impact on legacy devices
US7286667B1 (en) * 2003-09-15 2007-10-23 Sony Corporation Decryption system
US7620180B2 (en) * 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
WO2005052743A2 (en) * 2003-11-20 2005-06-09 Tekelec Methods and systems for message transfer part (mtp) load sharing using mtp load sharing groups
US20050169473A1 (en) * 2004-02-03 2005-08-04 Candelore Brant L. Multiple selective encryption with DRM
KR100630680B1 (en) * 2004-03-19 2006-10-02 삼성전자주식회사 Non-volatile Memory Device with Asymmetrical Gate Dielectric Layer and Manufacturing Method thereof
US7634223B2 (en) * 2004-07-12 2009-12-15 Motorola Inc. Method and apparatus for controlling a delivery of a broadcast-multicast flow in a packet data communication system
US20060018627A1 (en) * 2004-07-20 2006-01-26 Canon Kabushiki Kaisha Image reproducing apparatus and image reproducing method
US7636841B2 (en) 2004-07-26 2009-12-22 Intercall, Inc. Systems and methods for secure data exchange in a distributed collaborative application
US20060023883A1 (en) * 2004-07-27 2006-02-02 Dell Products L.P. System, method and apparatus for secure data transmissions within an information handling system
JP2006140625A (en) * 2004-11-10 2006-06-01 Toshiba Corp Information processor
US7675872B2 (en) * 2004-11-30 2010-03-09 Broadcom Corporation System, method, and apparatus for displaying pictures
US8291236B2 (en) 2004-12-07 2012-10-16 Digital Keystone, Inc. Methods and apparatuses for secondary conditional access server
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
US7802279B1 (en) * 2004-12-29 2010-09-21 Digital Keystone, Inc. Methods and apparatuses for processing broadcast flagged media content
KR100739702B1 (en) * 2005-02-07 2007-07-13 삼성전자주식회사 Method for generating usage rule information for broadcast channel
WO2006124854A2 (en) * 2005-05-13 2006-11-23 Qualcomm Incorporated Improving error resilience using out of band directory information
US8144868B2 (en) * 2005-05-25 2012-03-27 Zenith Electronics Llc Encryption/decryption of program data but not PSI data
US8189786B2 (en) 2005-05-25 2012-05-29 Zenith Electronics Llc Encryption system
DE102005033285C5 (en) * 2005-07-15 2019-11-07 Institut für Rundfunktechnik GmbH Consumer electronics device
KR100762957B1 (en) * 2005-07-19 2007-10-04 삼성전자주식회사 Method and apparatus for descrambling AV stream
EP2267706A3 (en) 2005-07-19 2012-03-14 Samsung Electronics Co., Ltd. Method and apparatus for efficiently fixing transformed part of content
US8069348B2 (en) * 2005-10-11 2011-11-29 Bacon Kinney C Client digital program insertion in a conditional access module
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US7876750B2 (en) * 2006-04-04 2011-01-25 Samsung Electronics Co., Ltd. Digital broadcasting system and data processing method thereof
US8656424B2 (en) * 2007-12-31 2014-02-18 Digital Keystone, Inc. Distributed TV access system
JP2009194860A (en) * 2008-02-18 2009-08-27 Toshiba Corp Transmitter, receiver, content transmitting and receiving system, content transmitting method, content receiving method, and program
JP2010034860A (en) * 2008-07-29 2010-02-12 Fujitsu Ltd Ip network communicating method which has security function, and communicating system
US20100142921A1 (en) * 2008-12-08 2010-06-10 Electronics And Telecommunications Research Institute Apparatus and method for transmitting/receiving digital broadcasting
JP5526848B2 (en) * 2010-02-17 2014-06-18 ソニー株式会社 Information processing apparatus, information processing method, and program
US8555332B2 (en) 2010-08-20 2013-10-08 At&T Intellectual Property I, L.P. System for establishing communications with a mobile device server
US8438285B2 (en) 2010-09-15 2013-05-07 At&T Intellectual Property I, L.P. System for managing resources accessible to a mobile device server
US8516039B2 (en) 2010-10-01 2013-08-20 At&T Intellectual Property I, L.P. Apparatus and method for managing mobile device servers
US8989055B2 (en) 2011-07-17 2015-03-24 At&T Intellectual Property I, L.P. Processing messages with a device server operating in a telephone
US8443420B2 (en) * 2010-10-01 2013-05-14 At&T Intellectual Property I, L.P. System for communicating with a mobile device server
US8478905B2 (en) 2010-10-01 2013-07-02 At&T Intellectual Property I, Lp System for synchronizing to a mobile device server
US8504449B2 (en) 2010-10-01 2013-08-06 At&T Intellectual Property I, L.P. Apparatus and method for managing software applications of a mobile device server
US9392316B2 (en) 2010-10-28 2016-07-12 At&T Intellectual Property I, L.P. Messaging abstraction in a mobile device server
US9449324B2 (en) 2010-11-11 2016-09-20 Sony Corporation Reducing TV licensing costs
US8631430B2 (en) * 2010-11-18 2014-01-14 Sony Corporation Enabling DRM-encrypted broadcast content through gateway into the home
US9066123B2 (en) 2010-11-30 2015-06-23 At&T Intellectual Property I, L.P. System for monetizing resources accessible to a mobile device server
US9462332B2 (en) 2012-12-05 2016-10-04 At&T Intellectual Property I, L.P. Method and apparatus for controlling a media device
DE102013226802A1 (en) * 2013-12-20 2015-06-25 Siemens Aktiengesellschaft Privacy protection in a video stream using a redundant slice
US11443016B2 (en) * 2018-11-09 2022-09-13 Sony Corporation Pre-key with authentication using logical combinations of pre-key bits with other information
US11095650B1 (en) 2020-02-03 2021-08-17 Bank Of America Corporation Resource transfer authorization decision engine
KR20230023359A (en) 2021-08-10 2023-02-17 한화테크윈 주식회사 surveillance camera system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020129243A1 (en) * 2001-03-08 2002-09-12 Viswanath Nanjundiah System for selective encryption of data packets
US20020150239A1 (en) * 2001-04-17 2002-10-17 Vidius Inc. Method for personalized encryption in an un-trusted environment

Family Cites Families (294)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852519A (en) 1972-10-20 1974-12-03 Optical Systems Corp Video and audio encoding/decoding system employing suppressed carrier modulation
GB2073534B (en) 1980-04-02 1984-04-04 Sony Corp Error concealment in digital television signals
GB2084432A (en) 1980-09-18 1982-04-07 Sony Corp Error concealment in digital television signals
US4374399A (en) 1981-08-13 1983-02-15 Zenith Radio Corporation Insertion of non-synchronous data into vertical interval
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
US4521853A (en) 1982-06-30 1985-06-04 Texas Instruments Incorporated Secure microprocessor/microcomputer with secured memory
CA1338158C (en) 1982-07-15 1996-03-12 John D. Lowry Encryption and decryption (scrambling and unscrambling) of video signals
US4785361A (en) 1982-11-08 1988-11-15 Vault Corporation Method and apparatus for frustrating the unauthorized copying of recorded data
US4634808A (en) 1984-03-15 1987-01-06 M/A-Com Government Systems, Inc. Descrambler subscriber key production system utilizing key seeds stored in descrambler
US4712238A (en) 1984-06-08 1987-12-08 M/A-Com Government Systems, Inc. Selective-subscription descrambling
JPS6120442A (en) 1984-07-09 1986-01-29 Toshiba Corp Chargeable broadcasting system
JPH0746864B2 (en) 1984-08-22 1995-05-17 ソニー株式会社 High efficiency encoder
US4887296A (en) 1984-10-26 1989-12-12 Ricoh Co., Ltd. Cryptographic system for direct broadcast satellite system
CA1251555A (en) 1984-12-19 1989-03-21 Tetsujiro Kondo High efficiency technique for coding a digital video signal
JPH0793724B2 (en) 1984-12-21 1995-10-09 ソニー株式会社 High efficiency coding apparatus and coding method for television signal
DE3688855T2 (en) 1985-05-01 1994-03-17 Gen Instrument Corp Satellite transmission system with direct transmission.
JP2670259B2 (en) 1985-11-29 1997-10-29 ソニー株式会社 High efficiency coding device
JPH0746862B2 (en) 1985-11-30 1995-05-17 ソニー株式会社 Frame dropping compression encoding and decoding method
JP2612557B2 (en) 1985-12-18 1997-05-21 ソニー株式会社 Data transmission receiving system and data decoding device
JPS62231569A (en) 1986-03-31 1987-10-12 Fuji Photo Film Co Ltd Quantizing method for estimated error
NL8600980A (en) 1986-04-18 1987-11-16 Philips Nv METHOD FOR TRANSMITTING UPDATE INFORMATION FOR A STILL VIDEO IMAGE
US4944006A (en) 1987-03-12 1990-07-24 Zenith Electronics Corporation Secure data packet transmission system and method
JP2508439B2 (en) 1987-05-29 1996-06-19 ソニー株式会社 High efficiency encoder
EP0293644B1 (en) 1987-06-02 1992-03-25 Siemens Aktiengesellschaft Method for determining movement vector fields from digital image sequences
US4881263A (en) * 1987-09-25 1989-11-14 Digital Equipment Corporation Apparatus and method for secure transmission of data over an unsecure transmission channel
US5122873A (en) 1987-10-05 1992-06-16 Intel Corporation Method and apparatus for selectively encoding and decoding a digital motion video signal at multiple resolution levels
JP2629238B2 (en) 1988-02-05 1997-07-09 ソニー株式会社 Decoding device and decoding method
US4995080A (en) 1988-08-04 1991-02-19 Zenith Electronics Corporation Television signal scrambling system and method
US5247575A (en) 1988-08-16 1993-09-21 Sprague Peter J Information distribution system
US4953023A (en) 1988-09-29 1990-08-28 Sony Corporation Coding apparatus for encoding and compressing video data
US4964126A (en) * 1988-09-30 1990-10-16 Massachusetts Institute Of Technology Fault tolerant signal processing machine and method
JP2900385B2 (en) 1988-12-16 1999-06-02 ソニー株式会社 Framing circuit and method
JP3018366B2 (en) 1989-02-08 2000-03-13 ソニー株式会社 Video signal processing circuit
US5144662A (en) 1989-02-08 1992-09-01 U.S. Philips Corporation Public communication system comprising distributed stations, and station and sub-station for use in such a communication system
US4989245A (en) 1989-03-06 1991-01-29 General Instrument Corporation Controlled authorization of descrambling of scrambled programs broadcast between different jurisdictions
US5151782A (en) 1989-05-17 1992-09-29 Reiss Media Enterprises Control system for satellite delivered pay-per-view television system
US5208816A (en) 1989-08-18 1993-05-04 At&T Bell Laboratories Generalized viterbi decoding algorithms
JPH03141752A (en) 1989-10-27 1991-06-17 Hitachi Ltd Picture signal transmitting method
JPH03214834A (en) * 1990-01-19 1991-09-20 Canon Inc Multi-medium network system
US5237610A (en) 1990-02-01 1993-08-17 Scientific-Atlanta, Inc. Independent external security module for a digitally upgradeable television signal decoder
US5682425A (en) * 1990-04-23 1997-10-28 Canon Kabushiki Kaisha Information signal transmission system
JPH0474063A (en) 1990-07-13 1992-03-09 Matsushita Electric Ind Co Ltd Coding method for picture
JP2650472B2 (en) 1990-07-30 1997-09-03 松下電器産業株式会社 Digital signal recording apparatus and digital signal recording method
US5018197A (en) 1990-07-30 1991-05-21 Zenith Electronics Corporation Secure video decoder system
JP2969867B2 (en) 1990-08-31 1999-11-02 ソニー株式会社 High-efficiency encoder for digital image signals.
GB9019538D0 (en) 1990-09-07 1990-10-24 Philips Electronic Associated Tracking a moving object
US5594507A (en) * 1990-09-28 1997-01-14 Ictv, Inc. Compressed digital overlay controller and method for MPEG type video signal
US5416651A (en) 1990-10-31 1995-05-16 Sony Corporation Apparatus for magnetically recording digital data
US5144664A (en) 1990-11-16 1992-09-01 General Instrument Corporation Apparatus and method for upgrading terminals to maintain a secure communication network
JP2906671B2 (en) 1990-12-28 1999-06-21 ソニー株式会社 Highly efficient digital video signal encoding apparatus and method
EP0495501B1 (en) 1991-01-17 1998-07-08 Sharp Kabushiki Kaisha Image coding and decoding system using an orthogonal transform and bit allocation method suitable therefore
US5091936A (en) 1991-01-30 1992-02-25 General Instrument Corporation System for communicating television signals or a plurality of digital audio signals in a standard television line allocation
US5138659A (en) 1991-05-02 1992-08-11 General Instrument Corporation Conversion of television signal formats with retention of common control data stream
JPH04358486A (en) 1991-06-04 1992-12-11 Toshiba Corp High efficiency code signal processing unit
JP2766919B2 (en) 1991-06-07 1998-06-18 三菱電機株式会社 Digital signal recording / reproducing device, digital signal recording device, digital signal reproducing device
US5263026A (en) 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
US5195135A (en) * 1991-08-12 1993-03-16 Palmer Douglas A Automatic multivariate censorship of audio-video programming by user-selectable obscuration
MY108367A (en) 1991-09-30 1996-09-30 Thomson Consumer Electronics S A Method and apparatus for secure transmisson of video signals.
DE69217150T2 (en) 1991-09-30 1997-07-17 Philips Electronics Nv Motion vector estimation, motion picture coding and storage
US5398078A (en) 1991-10-31 1995-03-14 Kabushiki Kaisha Toshiba Method of detecting a motion vector in an image coding apparatus
US20010013123A1 (en) * 1991-11-25 2001-08-09 Freeman Michael J. Customized program creation by splicing server based video, audio, or graphical segments
JP3278881B2 (en) 1991-12-13 2002-04-30 ソニー株式会社 Image signal generator
EP1115248B1 (en) * 1992-01-08 2005-03-30 Broadband Innovations, Inc. Method and apparatus for generating a multichannel signal
US6208805B1 (en) 1992-02-07 2001-03-27 Max Abecassis Inhibiting a control function from interfering with a playing of a video
JP3259323B2 (en) 1992-04-13 2002-02-25 ソニー株式会社 De-interleave circuit
US5359694A (en) 1992-07-27 1994-10-25 Teknekron Communications Systems, Inc. Method and apparatus for converting image data
US5438369A (en) 1992-08-17 1995-08-01 Zenith Electronics Corporation Digital data interleaving system with improved error correctability for vertically correlated interference
US5481554A (en) 1992-09-02 1996-01-02 Sony Corporation Data transmission apparatus for transmitting code data
US5400401A (en) 1992-10-30 1995-03-21 Scientific Atlanta, Inc. System and method for transmitting a plurality of digital services
US5414852A (en) 1992-10-30 1995-05-09 International Business Machines Corporation Method for protecting data in a computer system
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
US5341425A (en) 1992-12-02 1994-08-23 Scientific Atlanta, Inc. Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site
US5726711A (en) * 1993-01-13 1998-03-10 Hitachi America, Ltd. Intra-coded video frame data processing methods and apparatus
US5325432A (en) 1993-02-04 1994-06-28 Motorola, Inc. Method for updating encryption key information in communication units
US5416847A (en) 1993-02-12 1995-05-16 The Walt Disney Company Multi-band, digital audio noise filter
US5444491A (en) 1993-02-26 1995-08-22 Massachusetts Institute Of Technology Television system with multiple transmission formats
US5444782A (en) 1993-03-09 1995-08-22 Uunet Technologies, Inc. Computer network encryption/decryption device
KR960015357B1 (en) 1993-07-16 1996-11-09 대우전자 주식회사 Communication system of scrambling and descrambling for radio program signal
JP2707950B2 (en) 1993-07-30 1998-02-04 ソニー株式会社 Digital image information processing device
US5381481A (en) 1993-08-04 1995-01-10 Scientific-Atlanta, Inc. Method and apparatus for uniquely encrypting a plurality of services at a transmission site
US5319712A (en) 1993-08-26 1994-06-07 Motorola, Inc. Method and apparatus for providing cryptographic protection of a data stream in a communication system
KR960012931B1 (en) 1993-08-31 1996-09-25 대우전자 주식회사 Channel error concealing method for classified vector quantized video
US5663764A (en) 1993-09-30 1997-09-02 Sony Corporation Hierarchical encoding and decoding apparatus for a digital image signal
JP3590996B2 (en) 1993-09-30 2004-11-17 ソニー株式会社 Hierarchical encoding and decoding apparatus for digital image signal
US5617333A (en) 1993-11-29 1997-04-01 Kokusai Electric Co., Ltd. Method and apparatus for transmission of image data
US5455862A (en) 1993-12-02 1995-10-03 Crest Industries, Inc. Apparatus and method for encrypting communications without exchanging an encryption key
JP3271108B2 (en) 1993-12-03 2002-04-02 ソニー株式会社 Apparatus and method for processing digital image signal
FR2715256B1 (en) 1994-01-19 1996-02-16 France Telecom Procedures for transmitting and receiving conditional access programs managed by the same operator.
EP0669761A3 (en) 1994-02-23 1999-03-03 Hitachi, Ltd. Television signal receiving apparatus incorporating an information retrieving and reproducing apparatus
US5491748A (en) 1994-03-01 1996-02-13 Zenith Electronics Corporation Enhanced security for a cable system
CN1092004C (en) * 1994-03-18 2002-10-02 皇家菲利浦电子有限公司 Audio-video system
US5420866A (en) 1994-03-29 1995-05-30 Scientific-Atlanta, Inc. Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
US5515107A (en) * 1994-03-30 1996-05-07 Sigma Designs, Incorporated Method of encoding a stream of motion picture data
FR2718594B1 (en) * 1994-04-06 1996-04-26 France Telecom Method for broadcasting programs with progressive conditional access and separating the flow of information.
GB9407038D0 (en) 1994-04-08 1994-06-01 Amstrad Plc Method and apparatus for transmitting and receiving encrypted signals
US5459789A (en) 1994-04-22 1995-10-17 Thomson Consumer Electronics Packet TV program component detector
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
US5666293A (en) 1994-05-27 1997-09-09 Bell Atlantic Network Services, Inc. Downloading operating system software through a broadcast channel
US5473692A (en) 1994-09-07 1995-12-05 Intel Corporation Roving software license for a hardware agent
US5539828A (en) 1994-05-31 1996-07-23 Intel Corporation Apparatus and method for providing secured communications
US5606359A (en) 1994-06-30 1997-02-25 Hewlett-Packard Company Video on demand system with multiple data sources configured to provide vcr-like services
US5535276A (en) 1994-11-09 1996-07-09 Bell Atlantic Network Services, Inc. Yaksha, an improved system and method for securing communications using split private key asymmetric cryptography
US5518934A (en) * 1994-07-21 1996-05-21 Trustees Of Princeton University Method of fabricating multiwavelength infrared focal plane array detector
US5526427A (en) 1994-07-22 1996-06-11 A.C. Nielsen Company Universal broadcast code and multi-level encoded signal monitoring system
US5574787A (en) 1994-07-25 1996-11-12 Ryan; John O. Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
US5539823A (en) 1994-07-27 1996-07-23 General Instrument Corporation Of Delaware Subscription television picture scrambling and descrambling system providing compatibility with different such systems
US5629981A (en) 1994-07-29 1997-05-13 Texas Instruments Incorporated Information management and security system
FI97007C (en) 1994-08-01 1996-09-25 Nokia Technology Gmbh System for controlling the various management systems transmitting video, audio and data services and the receiver used in the system
JP3575100B2 (en) * 1994-11-14 2004-10-06 ソニー株式会社 Data transmission / reception apparatus and method, and data recording / reproduction apparatus and method
US5652795A (en) 1994-11-14 1997-07-29 Hughes Electronics Method and apparatus for an adapter card providing conditional access in a communication system
US5485577A (en) 1994-12-16 1996-01-16 General Instrument Corporation Of Delaware Method and apparatus for incremental delivery of access rights
WO1996020563A1 (en) * 1994-12-27 1996-07-04 Kabushiki Kaisha Toshiba Transmitter, receiver, communication processing system integrating them, and digital television broadcasting system
EP0720374A1 (en) 1994-12-30 1996-07-03 Daewoo Electronics Co., Ltd Apparatus for parallel decoding of digital video signals
US5590202A (en) 1995-01-18 1996-12-31 Zenith Electronics Corporation Countdown system for conditional access module
US5583863A (en) 1995-01-31 1996-12-10 Bell Atlantic Network Services, Inc. Full service network using asynchronous transfer mode multiplexing
US5892900A (en) * 1996-08-30 1999-04-06 Intertrust Technologies Corp. Systems and methods for secure transaction management and electronic rights protection
US5999406A (en) * 1995-02-23 1999-12-07 Avid Technology, Inc. Dockable electronic equipment container
US5696906A (en) 1995-03-09 1997-12-09 Continental Cablevision, Inc. Telecommunicaion user account management system and method
US20040136532A1 (en) * 1995-04-03 2004-07-15 Pinder Howard G. Partial dual-encrypted stream utilizing program map tables
US5608448A (en) 1995-04-10 1997-03-04 Lockheed Martin Corporation Hybrid architecture for video on demand server
US5600378A (en) * 1995-05-22 1997-02-04 Scientific-Atlanta, Inc. Logical and composite channel mapping in an MPEG network
US5652615A (en) * 1995-06-30 1997-07-29 Digital Equipment Corporation Precision broadcast of composite programs including secondary program content such as advertisements
US5583576A (en) 1995-09-11 1996-12-10 Oktv, Inc. Rating-dependent parental lock-out for television reception
US5582470A (en) 1995-09-12 1996-12-10 Silitek Corporation Scanner housing
US5742680A (en) * 1995-11-13 1998-04-21 E Star, Inc. Set top box for receiving and decryption and descrambling a plurality of satellite television signals
JP2000503154A (en) 1996-01-11 2000-03-14 エムアールジェイ インコーポレイテッド System for controlling access and distribution of digital ownership
JPH09214872A (en) 1996-01-30 1997-08-15 Sony Corp Information signal processing unit and information signal processing method
FI100563B (en) * 1996-01-30 1997-12-31 Nokia Oy Ab Encryption of digital presentation objects during transmission and recording
AU734654B2 (en) * 1996-02-09 2001-06-21 Integrated Technologies Of America, Inc. Access control/crypto system
US6055314A (en) * 1996-03-22 2000-04-25 Microsoft Corporation System and method for secure purchase and delivery of video content programs
US5754658A (en) * 1996-04-19 1998-05-19 Intel Corporation Adaptive encryption to avoid processor oversaturation
US5751813A (en) * 1996-04-29 1998-05-12 Motorola, Inc. Use of an encryption server for encrypting messages
US5838873A (en) 1996-05-31 1998-11-17 Thomson Consumer Electronics, Inc. Packetized data formats for digital data storage media
US6061471A (en) 1996-06-07 2000-05-09 Electronic Data Systems Corporation Method and system for detecting uniform images in video signal
US5894516A (en) * 1996-07-10 1999-04-13 Ncr Corporation Broadcast software distribution
US6058192A (en) * 1996-08-06 2000-05-02 Greg Jarque Universal signal processor and method of processing
US5905732A (en) * 1996-08-27 1999-05-18 Zenith Electronics Corporation PCR restamper
US5926624A (en) * 1996-09-12 1999-07-20 Audible, Inc. Digital information library and delivery system with logic for generating files targeted to the playback device
US7055166B1 (en) * 1996-10-03 2006-05-30 Gotuit Media Corp. Apparatus and methods for broadcast monitoring
US6012144A (en) * 1996-10-08 2000-01-04 Pickett; Thomas E. Transaction security method and apparatus
JPH10145773A (en) * 1996-11-14 1998-05-29 Toshiba Corp Method for ciphering animation data, computer system applying the method and dynamic image data encoding/ decoding device
FI964640A (en) * 1996-11-21 1998-07-28 Nokia Multimedia Network Terminals Oy Method for transmitting address information
DE69703705T2 (en) * 1996-11-26 2001-06-21 British Telecomm Public Ltd Co COMMUNICATION SYSTEM
US6016348A (en) * 1996-11-27 2000-01-18 Thomson Consumer Electronics, Inc. Decoding system and data format for processing and storing encrypted broadcast, cable or satellite video data
US5920626A (en) * 1996-12-20 1999-07-06 Scientific-Atlanta, Inc. Analog/digital system for television services
US6201927B1 (en) * 1997-02-18 2001-03-13 Mary Lafuze Comer Trick play reproduction of MPEG encoded signals
US6049613A (en) * 1997-03-07 2000-04-11 Jakobsson; Markus Method and apparatus for encrypting, decrypting, and providing privacy for data values
US5943605A (en) * 1997-04-16 1999-08-24 Lucent Technologies Inc. Arrangement for controlling extraction of data from a broadband digital stream employing a symbol table for translating symbolic program names to program and channel numbers
US6181364B1 (en) * 1997-05-16 2001-01-30 United Video Properties, Inc. System for filtering content from videos
US6005940A (en) 1997-05-16 1999-12-21 Software Security, Inc. System for securely storing and reading encrypted data on a data medium using a transponder
US6526144B2 (en) * 1997-06-02 2003-02-25 Texas Instruments Incorporated Data protection system
JP3595145B2 (en) * 1997-06-02 2004-12-02 三菱電機株式会社 Cryptographic communication system
US6236727B1 (en) * 1997-06-24 2001-05-22 International Business Machines Corporation Apparatus, method and computer program product for protecting copyright data within a computer system
US6057872A (en) * 1997-07-09 2000-05-02 General Instrument Corporation Digital coupons for pay televisions
US6011849A (en) * 1997-08-28 2000-01-04 Syndata Technologies, Inc. Encryption-based selection system for steganography
EP0901261B1 (en) * 1997-09-05 2013-01-09 Hitachi, Ltd. Transport protocol conversion method and protocol conversion equipment
US6378130B1 (en) * 1997-10-20 2002-04-23 Time Warner Entertainment Company Media server interconnect architecture
EP0917370A3 (en) 1997-11-18 2007-10-24 Sony Corporation Signal processing device and method for switching signal processors therefor
US6070245A (en) * 1997-11-25 2000-05-30 International Business Machines Corporation Application interface method and system for encryption control
US6057832A (en) * 1997-12-02 2000-05-02 V Soft Ltd. Method and apparatus for video-on-demand with fast play capability
WO1999030496A1 (en) * 1997-12-09 1999-06-17 Ictv, Inc. Distributed scrambling method and system
US6170075B1 (en) * 1997-12-18 2001-01-02 3Com Corporation Data and real-time media communication over a lossy network
EP0926894A1 (en) 1997-12-23 1999-06-30 CANAL+ Société Anonyme Scrambling unit for a digital transmission system
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
US6064748A (en) * 1998-01-16 2000-05-16 Hewlett-Packard Company Method and apparatus for embedding and retrieving additional data in an encoded data stream
EP0936774A1 (en) * 1998-02-13 1999-08-18 CANAL+ Société Anonyme Recording of scrambled digital data
JP3738939B2 (en) * 1998-03-05 2006-01-25 Ｋｄｄｉ株式会社 Moving image cut point detection device
US6327421B1 (en) * 1998-03-10 2001-12-04 International Business Machines Corporation Multiple speed fast forward/rewind compressed video delivery system
US6337947B1 (en) * 1998-03-24 2002-01-08 Ati Technologies, Inc. Method and apparatus for customized editing of video and/or audio signals
US6223290B1 (en) * 1998-05-07 2001-04-24 Intel Corporation Method and apparatus for preventing the fraudulent use of a cellular telephone
EP1034656A2 (en) * 1998-06-11 2000-09-13 Koninklijke Philips Electronics N.V. Trick play signal generation for a digital video recorder
US6148205A (en) * 1998-06-30 2000-11-14 Motorola, Inc. Method and apparatus for secure registration within an in-home wireless network
JP2000032414A (en) * 1998-07-16 2000-01-28 Sony Corp Channel setting method and receiver thereof
US7457415B2 (en) * 1998-08-20 2008-11-25 Akikaze Technologies, Llc Secure information distribution system utilizing information segment scrambling
US6219358B1 (en) * 1998-09-11 2001-04-17 Scientific-Atlanta, Inc. Adaptive rate control for insertion of data into arbitrary bit rate data streams
JP2000125260A (en) 1998-10-15 2000-04-28 Toshiba Corp Moving picture transmission server, moving picture transmission system using the server and moving picture transmission control method
JP3602728B2 (en) 1998-10-22 2004-12-15 株式会社東芝 Digital video disk player and image display device
US20020083439A1 (en) * 2000-08-31 2002-06-27 Eldering Charles A. System for rescheduling and inserting advertisements
US7089579B1 (en) * 1998-12-20 2006-08-08 Tvworks, Llc System for transporting MPEG video as streaming video in an HTML web page
US7162642B2 (en) * 1999-01-06 2007-01-09 Digital Video Express, L.P. Digital content distribution system and method
JP3805985B2 (en) 1999-02-18 2006-08-09 株式会社東芝 Stream data information storage medium, recording method, reproducing method, recording apparatus, and reproducing apparatus
US6550008B1 (en) * 1999-02-26 2003-04-15 Intel Corporation Protection of information transmitted over communications channels
US6505299B1 (en) * 1999-03-01 2003-01-07 Sharp Laboratories Of America, Inc. Digital image scrambling for image coding systems
US6229895B1 (en) * 1999-03-12 2001-05-08 Diva Systems Corp. Secure distribution of video on-demand
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US6240553B1 (en) * 1999-03-31 2001-05-29 Diva Systems Corporation Method for providing scalable in-band and out-of-band access within a video-on-demand environment
US7096487B1 (en) * 1999-10-27 2006-08-22 Sedna Patent Services, Llc Apparatus and method for combining realtime and non-realtime encoded content
US6323914B1 (en) 1999-04-20 2001-11-27 Lsi Logic Corporation Compressed video recording device with integrated effects processing
US7194758B1 (en) * 1999-05-24 2007-03-20 Matsushita Electric Industrial Co., Ltd. Digital broadcast system and its component devices that provide services in accordance with a broadcast watched by viewers
US7336785B1 (en) 1999-07-09 2008-02-26 Koninklijke Philips Electronics N.V. System and method for copy protecting transmitted information
US6549229B1 (en) * 1999-07-26 2003-04-15 C-Cubed Corporation Small, portable, self-contained, video teleconferencing system
JP3939551B2 (en) 1999-08-24 2007-07-04 富士通株式会社 Moving image processing apparatus, method thereof, and recording medium
US6463445B1 (en) 1999-08-27 2002-10-08 Sony Electronics Inc. Multimedia information retrieval system and method including format conversion system and method
US6697944B1 (en) * 1999-10-01 2004-02-24 Microsoft Corporation Digital content distribution, transmission and protection system and method, and portable device for use therewith
JP2001117809A (en) 1999-10-14 2001-04-27 Fujitsu Ltd Media converting method and storage medium
DE60034364D1 (en) * 1999-10-27 2007-05-24 Sedna Patent Services Llc MULTIPLE VIDEO DRIVES USING SLICE BASED CODING
JP3619427B2 (en) 1999-11-05 2005-02-09 株式会社ビューポイントコミュニケーションズ Information display device
FR2801464B1 (en) 1999-11-22 2001-12-28 Thomson Multimedia Sa METHOD FOR RECORDING A SCRATCHED MPEG STREAM
US6643298B1 (en) * 1999-11-23 2003-11-04 International Business Machines Corporation Method and apparatus for MPEG-2 program ID re-mapping for multiplexing several programs into a single transport stream
US7298959B1 (en) 1999-12-16 2007-11-20 Sharp Laboratories Of America, Inc. Method and apparatus for storing MPEG-2 transport streams using a conventional digital video recorder
JP2001242786A (en) 1999-12-20 2001-09-07 Fuji Photo Film Co Ltd Device and method for distribution, and recording medium
US6988238B1 (en) * 2000-01-24 2006-01-17 Ati Technologies, Inc. Method and system for handling errors and a system for receiving packet stream data
US6621866B1 (en) * 2000-01-28 2003-09-16 Thomson Licensing S.A. Method for inserting a visual element into an MPEG bit stream
WO2001056221A2 (en) 2000-01-31 2001-08-02 Vdg Inc. Block encryption method and schemes for data confidentiality and integrity protection
CN1422496A (en) * 2000-02-02 2003-06-04 世界门服务股份有限公司 System and method for transmitting and displaying targeted information
EP1134977A1 (en) * 2000-03-06 2001-09-19 Irdeto Access B.V. Method and system for providing copies of scrambled content with unique watermarks, and system for descrambling scrambled content
AU2001253857A1 (en) 2000-03-14 2001-09-24 Buzzpad, Inc. Method and apparatus for forming linked multi-user groups of shared software applications
FR2806570B1 (en) 2000-03-15 2002-05-17 Thomson Multimedia Sa METHOD AND DEVICE FOR CODING VIDEO IMAGES
CN1193368C (en) * 2000-03-28 2005-03-16 三星电子株式会社 Storage recording medium of scrambling audio data and apparatus and method for recording and reproducing thereof
KR100611965B1 (en) 2000-03-28 2006-08-11 삼성전자주식회사 Recording medium for storing encrypted audio data, apparatus and method of recording the same and appraratus and method of reproducing the same
US6684250B2 (en) * 2000-04-03 2004-01-27 Quova, Inc. Method and apparatus for estimating a geographic location of a networked entity
US7043447B2 (en) 2000-04-19 2006-05-09 Sony Corporation Method for facilitating a transaction for purchasable content over an electronic network
JP2001308812A (en) * 2000-04-24 2001-11-02 Nec Microsystems Ltd Method for separation processing of transport stream for digital television and its recording medium
ATE271253T1 (en) * 2000-05-10 2004-07-15 Koninkl Philips Electronics Nv COPY PROTECTION SYSTEM
JP2001326875A (en) * 2000-05-16 2001-11-22 Sony Corp Image processing unit and image processing method, and recording medium
FI20001512A (en) * 2000-06-26 2001-12-27 Nokia Corp Controlling unencrypted user traffic
JP4034502B2 (en) * 2000-06-30 2008-01-16 株式会社東芝 Broadcast program recording / playback method and broadcast program recording / playback apparatus
ES2312483T3 (en) * 2000-07-14 2009-03-01 Irdeto Access B.V. ARCHITECTURE OF SECURE DATA DISSEMINATION BY PACKAGES.
US6853728B1 (en) * 2000-07-21 2005-02-08 The Directv Group, Inc. Video on demand pay per view services with unmodified conditional access functionality
FR2812781A1 (en) * 2000-08-04 2002-02-08 Thomson Multimedia Sa METHOD FOR SECURE DISTRIBUTION OF DIGITAL DATA REPRESENTATIVE OF MULTIMEDIA CONTENT
US20020065678A1 (en) 2000-08-25 2002-05-30 Steven Peliotis iSelect video
US7490344B2 (en) 2000-09-29 2009-02-10 Visible World, Inc. System and method for seamless switching
EP1329064A2 (en) 2000-10-13 2003-07-23 Astrolink International, LLC Distributed ip over atm architecture
US6704733B2 (en) 2000-10-25 2004-03-09 Lightning Source, Inc. Distributing electronic books over a computer network
WO2002047388A2 (en) * 2000-11-14 2002-06-13 Scientific-Atlanta, Inc. Networked subscriber television distribution
US7508454B1 (en) * 2000-11-16 2009-03-24 Smardtv Sa Digital television conditional access methods and apparatus for simultaneously handling multiple television programs
US20020066101A1 (en) * 2000-11-27 2002-05-30 Gordon Donald F. Method and apparatus for delivering and displaying information for a multi-layer user interface
US8225361B2 (en) * 2000-11-27 2012-07-17 Cox Communications, Inc. Remote monitoring and control method and apparatus for an information distribution system
DE60119678T3 (en) * 2000-12-15 2010-09-16 Panasonic Corp., Kadoma Receiving device with a recording unit for recording an encrypted broadcasting signal and a broadcasting device for encrypting a signal to be broadcast, and associated methods
US7472280B2 (en) * 2000-12-27 2008-12-30 Proxense, Llc Digital rights management
US7023924B1 (en) 2000-12-28 2006-04-04 Emc Corporation Method of pausing an MPEG coded video stream
WO2002057922A1 (en) * 2001-01-17 2002-07-25 Contentguard Holdings, Inc. Method and apparatus for managing digital content usage rights
WO2002071736A2 (en) * 2001-03-05 2002-09-12 Intervideo, Inc. Systems and methods of error resilience in a video decoder
US20020178445A1 (en) 2001-04-03 2002-11-28 Charles Eldering Subscriber selected advertisement display and scheduling
US20020157115A1 (en) * 2001-04-24 2002-10-24 Koninklijke Philips Electronics N.V. Wireless communication point of deployment module for use in digital cable compliant devices
US7158185B2 (en) * 2001-05-01 2007-01-02 Scientific-Atlanta, Inc. Method and apparatus for tagging media presentations with subscriber identification information
US20020194589A1 (en) * 2001-05-08 2002-12-19 Cristofalo Michael Technique for optimizing the delivery of advertisements and other programming segments by making bandwidth tradeoffs
US7350082B2 (en) * 2001-06-06 2008-03-25 Sony Corporation Upgrading of encryption
US7124303B2 (en) * 2001-06-06 2006-10-17 Sony Corporation Elementary stream partial encryption
US7356245B2 (en) * 2001-06-29 2008-04-08 International Business Machines Corporation Methods to facilitate efficient transmission and playback of digital information
US7421411B2 (en) * 2001-07-06 2008-09-02 Nokia Corporation Digital rights management in a mobile communications environment
US20030012286A1 (en) * 2001-07-10 2003-01-16 Motorola, Inc. Method and device for suspecting errors and recovering macroblock data in video coding
US6633692B2 (en) * 2001-07-31 2003-10-14 The National University Of Singapore High carrier injection optical waveguide switch
US7257844B2 (en) * 2001-07-31 2007-08-14 Marvell International Ltd. System and method for enhanced piracy protection in a wireless personal communication device
KR100467638B1 (en) * 2001-08-01 2005-01-24 (주) 위즈도메인 Method for fast searching and analyzing inter-relations between patents from a patent database
US6883050B1 (en) * 2001-08-09 2005-04-19 General Instrument Corporation Optimized POD module/host interface
US7463737B2 (en) * 2001-08-15 2008-12-09 Digeo, Inc. System and method for conditional access key encryption
US7224797B2 (en) * 2001-08-17 2007-05-29 Koninklijke Philips Electronics N.V. System and method for hybrid conditional access for receivers of encrypted transmissions
WO2003017649A1 (en) * 2001-08-20 2003-02-27 Koninklijke Philips Electronics N.V. Image size extension
US20030046687A1 (en) * 2001-09-06 2003-03-06 Octiv, Inc. Techniques for manipulating programming breaks in streaming content
US6925180B2 (en) * 2001-09-27 2005-08-02 Sony Corporation PC card recorder
JP2003122710A (en) 2001-10-10 2003-04-25 Sony Corp Network system, processing server, information management server and service providing method
US7206501B2 (en) * 2001-10-12 2007-04-17 The Directv Group, Inc. Method and apparatus for identifying MPEG picture coding types
US20030079133A1 (en) * 2001-10-18 2003-04-24 International Business Machines Corporation Method and system for digital rights management in content distribution application
US20030077071A1 (en) * 2001-10-23 2003-04-24 Shu Lin Fast forward trick mode and reverse trick mode using an information file
US20030084284A1 (en) * 2001-10-24 2003-05-01 Satoshi Ando Data distribution system, sending device, receiving device, data distribution method, sending method, receiving method, recording medium on which data preparation program is recorded and recording medium on which data assembling program is recorded
US8312265B2 (en) 2001-12-11 2012-11-13 Pinder Howard G Encrypting received content
US20040037421A1 (en) * 2001-12-17 2004-02-26 Truman Michael Mead Parital encryption of assembled bitstreams
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7765567B2 (en) * 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7823174B2 (en) * 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7292690B2 (en) * 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
US7242773B2 (en) * 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
US20040021764A1 (en) * 2002-01-28 2004-02-05 Be Here Corporation Visual teleconferencing apparatus
US20040010717A1 (en) * 2002-01-29 2004-01-15 Intertainer Asia Pte Ltd. Apparatus and method for preventing digital media piracy
US6701258B2 (en) * 2002-05-13 2004-03-02 Entek Ird International Corporation Modular monitoring and protection system with distributed voting logic
US7360160B2 (en) * 2002-06-20 2008-04-15 At&T Intellectual Property, Inc. System and method for providing substitute content in place of blocked content
JP2004030374A (en) * 2002-06-27 2004-01-29 Fujitsu Ltd Information processor for transmitting contents in security system corresponding to license policy, program and method
US7167560B2 (en) * 2002-08-08 2007-01-23 Matsushita Electric Industrial Co., Ltd. Partial encryption of stream-formatted media
TWI304970B (en) * 2002-08-28 2009-01-01 Matsushita Electric Ind Co Ltd Networked apparatus, content duplication management system and method, and computer-readable medium having recorded therein content duplication management program
US7295673B2 (en) * 2002-10-23 2007-11-13 Divx, Inc. Method and system for securing compressed digital video
US20050015816A1 (en) * 2002-10-29 2005-01-20 Actv, Inc System and method of providing triggered event commands via digital program insertion splicing
US7724907B2 (en) * 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US8572408B2 (en) * 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7721192B2 (en) * 2002-11-27 2010-05-18 Microsoft Corporation User interface for a resource search tool
US7292692B2 (en) * 2003-03-25 2007-11-06 Sony Corporation Content scrambling with minimal impact on legacy devices
US6707696B1 (en) * 2003-05-15 2004-03-16 Broadcom Corporation Hacker-proof one time programmable memory
US8014651B2 (en) * 2003-06-26 2011-09-06 International Business Machines Corporation MPEG-2 decoder, method and buffer scheme for providing enhanced trick mode playback of a video stream
US20050036067A1 (en) * 2003-08-05 2005-02-17 Ryal Kim Annon Variable perspective view of video images
US20050066357A1 (en) * 2003-09-22 2005-03-24 Ryal Kim Annon Modifying content rating
US20050071663A1 (en) * 2003-09-26 2005-03-31 General Instrument Corporation Separation of copy protection rules for digital rights management
EP1673939A1 (en) * 2003-10-14 2006-06-28 Matsushita Electric Industrial Co., Ltd. Mpeg-21 digital content protection system
US7490236B2 (en) * 2004-01-14 2009-02-10 Cisco Technology, Inc. Conditional access overlay partial encryption using MPEG transport continuity counter
US20050172127A1 (en) * 2004-01-31 2005-08-04 Frank Hartung System and method for transcoding encrypted multimedia messages transmitted between two devices
US8194655B2 (en) * 2004-08-05 2012-06-05 Dust Networks, Inc. Digraph based mesh communication network
US20050228752A1 (en) * 2004-04-07 2005-10-13 David Konetski System and method for managing encrypted multimedia content with an information handling system
DE102004032528C5 (en) * 2004-07-06 2012-04-05 Khs Gmbh A method of performing a roll change in a supply unit for feeding a sheet-like sheet to a packaging machine or the like processing machine and supply unit for performing this method
US20060036554A1 (en) * 2004-08-12 2006-02-16 Microsoft Corporation Content and license delivery to shared devices
US8041190B2 (en) * 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US7555123B2 (en) * 2005-04-29 2009-06-30 Scientific-Atlanta, Inc. Processing an MPEG elementary stream in a conditional access overlay environment
US20070006253A1 (en) * 2005-06-29 2007-01-04 Pinder Howard G Partial pre-encryption with network-based packet sorting
US8514894B2 (en) * 2005-08-02 2013-08-20 Elliptic Technologies Inc. Method for inserting/removal padding from packets
AU2006304655B2 (en) * 2005-10-18 2012-08-16 Intertrust Technologies Corporation Methods for digital rights management
US7555464B2 (en) 2006-03-01 2009-06-30 Sony Corporation Multiple DRM management

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020129243A1 (en) * 2001-03-08 2002-09-12 Viswanath Nanjundiah System for selective encryption of data packets
US20020150239A1 (en) * 2001-04-17 2002-10-17 Vidius Inc. Method for personalized encryption in an un-trusted environment

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US8265277B2 (en) 2012-09-11
WO2004095827A2 (en) 2004-11-04
EP1606930A2 (en) 2005-12-21
US20040240668A1 (en) 2004-12-02
KR20050115299A (en) 2005-12-07
US20080107265A1 (en) 2008-05-08
JP2006524015A (en) 2006-10-19
US7292692B2 (en) 2007-11-06
EP1606930A4 (en) 2009-03-25

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