BRPI0507906A - métodos para criptografar e para armazenar e circuito para criptografar um fluxo de dados, aparelho para armazenar dados, método para descriptografar dados audiovisuais criptografados, método para recuperar e transmitir dados armazenados, circuito para descriptografar dados audiovisuais criptografados, aparelho para recuperar e transmitir dados audiovisuais, produto de programa de computador, portador de dados, e, computador programado - Google Patents

métodos para criptografar e para armazenar e circuito para criptografar um fluxo de dados, aparelho para armazenar dados, método para descriptografar dados audiovisuais criptografados, método para recuperar e transmitir dados armazenados, circuito para descriptografar dados audiovisuais criptografados, aparelho para recuperar e transmitir dados audiovisuais, produto de programa de computador, portador de dados, e, computador programado

Info

Publication number
BRPI0507906A
BRPI0507906A BRPI0507906-3A BRPI0507906A BRPI0507906A BR PI0507906 A BRPI0507906 A BR PI0507906A BR PI0507906 A BRPI0507906 A BR PI0507906A BR PI0507906 A BRPI0507906 A BR PI0507906A
Authority
BR
Brazil
Prior art keywords
data
storing
encrypting
retrieving
circuitry
Prior art date
Application number
BRPI0507906-3A
Other languages
English (en)
Inventor
Wiebe De Haan
Menno A Treffers
Antonius A M Staring
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BRPI0507906A publication Critical patent/BRPI0507906A/pt

Links

Classifications

    • 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
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00485—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00492—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted

Landscapes

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

Abstract

MéTODOS PARA CRIPTOGRAFAR E PARA ARMAZENAR E CIRCUITO PARA CRIPTOGRAFAR UM FLUXO DE DADOS, APARELHO PARA ARMAZENAR DADOS, MéTODO PARA DESCRIPTOGRAFAR DADOS AUDIOVISUAIS CRIPTOGRAFADOS, MéTODO PARA RECUPERAR E TRANSMITIR DADOS ARMAZENADOS, CIRCUITO PARA DESCRIPTOGRAFAR DADOS AUDIOVISUAIS CRIPTOGRAFADOS, APARELHO PARA RECUPERAR E TRANSMITIR DADOS AUDIOVISUAIS, PRODUTO DE PROGRAMA DE COMPUTADOR, PORTADOR DE DADOS, E, COMPUTADOR PROGRAMADO A legislação atual requer a possibilidade de criptografia ao armazenar programas de televisão recebidos por radiodifusão. Entretanto, aparelhos de reprodução legados não serão capazes de reproduzir tais dados criptografados de um modo regular, mas possivelmente de modo errado. Isto pode resultar em problemas como dano a alto-falantes. Portanto, a invenção pretende esconder quaisquer de tais fluxos possivelmente danosos, provendo intencionalmente tais fluxos de uma identificação errada durante o processo de criptografia. A invenção provê entre outros um método e circuito para criptografia e um método e circuito para descriptografia. A invenção é especialmente adequada para gravadores de DVD. A invenção pode até ser usada para criptografia de dados não audiovisuais.
BRPI0507906-3A 2004-02-23 2005-02-17 métodos para criptografar e para armazenar e circuito para criptografar um fluxo de dados, aparelho para armazenar dados, método para descriptografar dados audiovisuais criptografados, método para recuperar e transmitir dados armazenados, circuito para descriptografar dados audiovisuais criptografados, aparelho para recuperar e transmitir dados audiovisuais, produto de programa de computador, portador de dados, e, computador programado BRPI0507906A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04100708 2004-02-23
EP04100754 2004-02-26
PCT/IB2005/050594 WO2005081544A2 (en) 2004-02-23 2005-02-17 Method and circuit for encrypting a data stream

Publications (1)

Publication Number Publication Date
BRPI0507906A true BRPI0507906A (pt) 2007-07-10

Family

ID=34889024

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507906-3A BRPI0507906A (pt) 2004-02-23 2005-02-17 métodos para criptografar e para armazenar e circuito para criptografar um fluxo de dados, aparelho para armazenar dados, método para descriptografar dados audiovisuais criptografados, método para recuperar e transmitir dados armazenados, circuito para descriptografar dados audiovisuais criptografados, aparelho para recuperar e transmitir dados audiovisuais, produto de programa de computador, portador de dados, e, computador programado

Country Status (12)

Country Link
US (1) US20080226067A1 (pt)
EP (1) EP1721472A2 (pt)
JP (1) JP2007524311A (pt)
AR (1) AR047892A1 (pt)
AU (1) AU2005214436A1 (pt)
BR (1) BRPI0507906A (pt)
CA (1) CA2557014A1 (pt)
IL (1) IL177595A0 (pt)
NO (1) NO20064311L (pt)
RU (1) RU2006133896A (pt)
TW (1) TW200534719A (pt)
WO (1) WO2005081544A2 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7978853B2 (en) * 2008-01-31 2011-07-12 International Business Machines Corporation System and computer program product for protecting audio content
US7974411B2 (en) * 2008-01-31 2011-07-05 International Business Machines Corporation Method for protecting audio content
JP5205075B2 (ja) * 2008-02-13 2013-06-05 パナソニック株式会社 暗号処理方法、暗号処理装置、復号処理方法および復号処理装置

Family Cites Families (20)

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JPH03254470A (ja) * 1990-03-02 1991-11-13 Fujitsu Ltd Ｃｄ―ｒｏｍ音データ部分の機密保護方法
JPH09139937A (ja) * 1995-11-14 1997-05-27 Fujitsu Ltd 動画ストリーム変換装置
KR19990044344A (ko) * 1996-07-02 1999-06-25 이데이 노부유끼 정보 전송 장치 및 전송 방법
KR100491340B1 (ko) * 1997-12-15 2005-05-24 마츠시타 덴끼 산교 가부시키가이샤 광디스크 재생장치 및 오디오 스트림을 재생하는 광디스크 재생방법
EP1021048A3 (en) * 1999-01-14 2002-10-02 Kabushiki Kaisha Toshiba Digital video recording system and its recording medium
US6810131B2 (en) * 2000-01-05 2004-10-26 Canon Kabushiki Kaisha Information processing method and apparatus
EP1117255B1 (en) * 2000-01-12 2007-10-24 Matsushita Electric Industrial Co., Ltd. Digital broadcast receiving device
US7023858B2 (en) * 2000-04-14 2006-04-04 Sony Corporation Data delivery in set-top box
US20020025045A1 (en) * 2000-07-26 2002-02-28 Raike William Michael Encryption processing for streaming media
NZ506002A (en) * 2000-07-26 2003-01-31 Rpk New Zealand Ltd Encryption processing for streaming media by assigning tag value, creating packet key, encrypting data and adding tag value
US6996101B2 (en) * 2000-11-29 2006-02-07 International Business Machines Corporation Re-mapping and interleaving transport packets of multiple transport streams for processing by a single transport demultiplexor
WO2002058384A1 (en) * 2001-01-19 2002-07-25 Matsushita Electric Industrial Co., Ltd. Reproducing apparatus and reproducing method
JP3607627B2 (ja) * 2001-02-26 2005-01-05 株式会社東芝 アスペクト比情報の整合処理機能付き情報録再装置および方法
US7127619B2 (en) * 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
DE10163152A1 (de) * 2001-12-20 2003-07-03 Thomson Brandt Gmbh MPEG-Video-Aufzeichnungsträger und Wiedergabegerät
MXPA04006442A (es) * 2002-01-02 2004-10-04 Sony Electronics Inc Encriptacion parcial y mapeo de pid.
US7765567B2 (en) * 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
JP2003203422A (ja) * 2002-01-10 2003-07-18 Sony Corp ディスク記録媒体、再生装置、再生方法
JP3896949B2 (ja) * 2002-11-08 2007-03-22 日本電気株式会社 ビデオ編集装置及びビデオ編集プログラム
US7310423B2 (en) * 2003-04-24 2007-12-18 General Instrument Corporation Processing multiple encrypted transport streams

Also Published As

Publication number Publication date
WO2005081544A3 (en) 2006-02-23
IL177595A0 (en) 2006-12-10
JP2007524311A (ja) 2007-08-23
EP1721472A2 (en) 2006-11-15
RU2006133896A (ru) 2008-03-27
US20080226067A1 (en) 2008-09-18
WO2005081544A2 (en) 2005-09-01
TW200534719A (en) 2005-10-16
NO20064311L (no) 2006-09-22
CA2557014A1 (en) 2005-09-01
AU2005214436A1 (en) 2005-09-01
AR047892A1 (es) 2006-03-01

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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 8A ANUIDADE, CONFORME ART. 10 DA RES. 124/06.

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 2204 DE 02/04/2013.