BRPI0408196A - proteção de conteúdo para gravação digital - Google Patents

proteção de conteúdo para gravação digital

Info

Publication number
BRPI0408196A
BRPI0408196A BRPI0408196-0A BRPI0408196A BRPI0408196A BR PI0408196 A BRPI0408196 A BR PI0408196A BR PI0408196 A BRPI0408196 A BR PI0408196A BR PI0408196 A BRPI0408196 A BR PI0408196A
Authority
BR
Brazil
Prior art keywords
digital
digital recording
content protection
data
unique
Prior art date
Application number
BRPI0408196-0A
Other languages
English (en)
Inventor
Douglas Edward Lankford
Keith Reynolds Wehmeyer
Mike Arthur Derrenberger
Kevin Elliott Bridgewater
Thomas Edward Horlander
Russell W Perkins
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0408196A publication Critical patent/BRPI0408196A/pt

Links

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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • 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 or rendering scenes according to encoded video stream scene graphs
    • H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)

Abstract

"PROTEçãO DE CONTEúDO PARA GRAVAçãO DIGITAL". Uma proteção de conteúdo para gravação digital pode ser obtida com a utilização de chaves digitais que sejam únicas com relação a dispositivos específicas e/ou a dispositivos associados a residências e/ou escritórios comerciais específicas. De acordo com uma modalidade exemplar, é apresentado um método (400) para permitir uma gravação digital com a utilização de um aparelho receptor de sinais e um aparelho de gravação digital. O método (400) inclui as etapas de receber uma chave digital única com relação ao aparelho receptor de sinais (410), receber sinais de difusão (420), criptografar os sinais de difusão por meio da chave digital de modo a serem gerados dados digitais criptografados (430) e enviar os dados digitais criptografados ao aparelho de gravação digital (440).
BRPI0408196-0A 2003-03-11 2004-03-10 proteção de conteúdo para gravação digital BRPI0408196A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US45376403P 2003-03-11 2003-03-11
US45366203P 2003-03-11 2003-03-11
PCT/US2004/007276 WO2004081744A2 (en) 2003-03-11 2004-03-10 Content protection for digital recording

Publications (1)

Publication Number Publication Date
BRPI0408196A true BRPI0408196A (pt) 2006-03-21

Family

ID=32994518

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0408196-0A BRPI0408196A (pt) 2003-03-11 2004-03-10 proteção de conteúdo para gravação digital

Country Status (6)

Country Link
US (1) US20060222330A1 (pt)
EP (1) EP1602228B1 (pt)
JP (1) JP4707114B2 (pt)
KR (1) KR101123997B1 (pt)
BR (1) BRPI0408196A (pt)
WO (1) WO2004081744A2 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755688B1 (ko) 2005-02-02 2007-09-05 삼성전자주식회사 에러 은닉 장치 및 방법
KR100755690B1 (ko) 2005-05-10 2007-09-05 삼성전자주식회사 컨텐츠 관리 방법 및 장치
KR100745281B1 (ko) * 2005-12-16 2007-08-01 엘지전자 주식회사 방송 컨텐츠 보호 장치 및 방법
KR100745280B1 (ko) * 2005-12-16 2007-08-01 엘지전자 주식회사 방송 컨텐츠 보호 장치 및 방법
JP4352054B2 (ja) 2006-01-23 2009-10-28 株式会社東芝 情報処理装置および鍵復元方法
KR100710271B1 (ko) 2006-05-10 2007-04-20 엘지전자 주식회사 외부기기와 티브이의 데이터 재생 방법 및 장치
US8256005B2 (en) * 2007-01-08 2012-08-28 Apple Inc. Protection of audio or video data in a playback device
DE102019112119B4 (de) * 2019-05-09 2023-10-05 HIM solutions UG Ortsfest installierbare Adaptervorrichtung für ein Netzwerksystem

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6026165A (en) * 1996-06-20 2000-02-15 Pittway Corporation Secure communications in a wireless system
JP3625983B2 (ja) * 1997-03-12 2005-03-02 三菱商事株式会社 データ管理システム
US6209097B1 (en) * 1997-12-05 2001-03-27 Tokyo Electron Device Limited Content protection method and content protection system
JP2000224562A (ja) * 1999-02-01 2000-08-11 Ntt Data Corp 放送系サービスシステム及び受信端末装置
JP4846155B2 (ja) * 1999-12-24 2011-12-28 富士通株式会社 情報記録／再生装置
AU2001245800A1 (en) * 2000-03-17 2001-10-03 Mark Nair System, method and apparatus for controlling the dissemination of digital works
JP2001357001A (ja) * 2000-06-12 2001-12-26 Pioneer Electronic Corp 情報出力装置及び情報出力方法、情報記録装置及び情報記録方法、情報出力記録システム並びに情報記録媒体
JP4595182B2 (ja) * 2000-09-07 2010-12-08 ソニー株式会社 情報記録装置、情報再生装置、情報記録方法、情報再生方法、および情報記録媒体、並びにプログラム提供媒体
US6851055B1 (en) * 2000-09-30 2005-02-01 Keen Personal Technologies, Inc. Digital video recorder for encrypting/decrypting video programs in segments to facilitate trick play features
US6959090B1 (en) * 2000-11-20 2005-10-25 Nokia Corporation Content Protection scheme for a digital recording device
JP2002176419A (ja) * 2000-12-06 2002-06-21 Hitachi Ltd 権利保護方法
JP4029569B2 (ja) * 2000-12-13 2008-01-09 株式会社日立製作所 ディジタル情報記録再生装置、記録装置、受信装置および送信装置
JP2002229858A (ja) * 2001-01-30 2002-08-16 Matsushita Electric Ind Co Ltd コンピュータ、及びプログラム
JP3925095B2 (ja) * 2001-02-01 2007-06-06 株式会社日立製作所 データ受信装置
JP2003008568A (ja) * 2001-02-28 2003-01-10 Matsushita Electric Ind Co Ltd 受信装置、受信方法及び受信プログラム並びに受信プログラムを記録したコンピュータ読み取り可能な記録媒体
JP4288450B2 (ja) * 2001-02-28 2009-07-01 ソニー株式会社 情報記録装置、情報再生装置、情報記録再生装置および情報記録管理装置
JP4299976B2 (ja) * 2001-03-02 2009-07-22 株式会社日立製作所 ディジタル情報記録装置
JP4213899B2 (ja) * 2001-03-19 2009-01-21 パナソニック株式会社 記録媒体交換機能を有するデータ受信システム
JP2002344921A (ja) * 2001-05-21 2002-11-29 Fujitsu Ltd コンテンツ受信装置
KR100947152B1 (ko) * 2001-11-15 2010-03-12 소니 주식회사 이동식 매체상에 배포된 디지털 콘텐츠의 사용 및 복사를 제어하는 방법 및 그를 이용하는 디지털 저장 매체

Also Published As

Publication number Publication date
WO2004081744A2 (en) 2004-09-23
WO2004081744A3 (en) 2004-11-11
KR20050109079A (ko) 2005-11-17
EP1602228A2 (en) 2005-12-07
EP1602228B1 (en) 2016-05-04
JP4707114B2 (ja) 2011-06-22
JP2006524006A (ja) 2006-10-19
KR101123997B1 (ko) 2012-03-23
US20060222330A1 (en) 2006-10-05

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 10A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2259 DE 22/04/2014.