DE69619654D1 - Verfahren und gerät zur überspielungssteuerung - Google Patents
Verfahren und gerät zur überspielungssteuerungInfo
- Publication number
- DE69619654D1 DE69619654D1 DE69619654T DE69619654T DE69619654D1 DE 69619654 D1 DE69619654 D1 DE 69619654D1 DE 69619654 T DE69619654 T DE 69619654T DE 69619654 T DE69619654 T DE 69619654T DE 69619654 D1 DE69619654 D1 DE 69619654D1
- Authority
- DE
- Germany
- Prior art keywords
- dubbing
- controlling
- controlling dubbing
- 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.)
- Expired - Fee Related
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
- 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
-
- 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
- G11B20/00217—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00246—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the 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
- 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
- G11B20/00536—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 wherein encrypted content data is subjected to a further, iterated encryption, e.g. interwoven encryption
-
- 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
- G11B20/00557—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 further management data is encrypted, e.g. sector headers, TOC or the lead-in or lead-out areas
-
- 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
- G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
- G11B20/00688—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that a usable copy of recorded data can be made on another medium
-
- 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
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
- G11B20/00768—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
-
- 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
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
- H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal
-
- 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
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
- H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP00098596A JP3176030B2 (ja) | 1996-01-08 | 1996-01-08 | 複製制御方法及び複製制御装置 |
PCT/JP1996/003608 WO1997025711A1 (fr) | 1996-01-08 | 1996-12-11 | Procede et appareil de doublage de commande |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69619654D1 true DE69619654D1 (de) | 2002-04-11 |
DE69619654T2 DE69619654T2 (de) | 2002-11-07 |
Family
ID=11488902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69619654T Expired - Fee Related DE69619654T2 (de) | 1996-01-08 | 1996-12-11 | Verfahren und gerät zur überspielungssteuerung |
Country Status (10)
Country | Link |
---|---|
US (2) | US6347846B1 (de) |
EP (1) | EP0814474B1 (de) |
JP (1) | JP3176030B2 (de) |
KR (1) | KR100311563B1 (de) |
CN (1) | CN1132373C (de) |
AU (1) | AU686058B2 (de) |
CA (1) | CA2199241C (de) |
DE (1) | DE69619654T2 (de) |
TW (1) | TW316301B (de) |
WO (1) | WO1997025711A1 (de) |
Families Citing this family (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3176030B2 (ja) * | 1996-01-08 | 2001-06-11 | 株式会社東芝 | 複製制御方法及び複製制御装置 |
JP2000503154A (ja) * | 1996-01-11 | 2000-03-14 | エムアールジェイ インコーポレイテッド | デジタル所有権のアクセスと分配を制御するためのシステム |
TW346571B (en) * | 1996-02-06 | 1998-12-01 | Matsushita Electric Ind Co Ltd | Data reception apparatus, data transmission apparatus, information processing system, data reception method |
US6356704B1 (en) | 1997-06-16 | 2002-03-12 | Ati Technologies, Inc. | Method and apparatus for detecting protection of audio and video signals |
US6606450B1 (en) * | 1997-06-16 | 2003-08-12 | Ati International Srl | Method and apparatus for processing video signals having associated access restriction data |
EP0899733B1 (de) * | 1997-08-28 | 2001-03-21 | Sony DADC Austria AG | System zur Kopierverwaltung einer optischen Platte |
JPH11176091A (ja) * | 1997-12-15 | 1999-07-02 | Hitachi Ltd | ディジタル情報入出力装置、受信装置、記録装置、および再生装置 |
MY132414A (en) | 1998-04-14 | 2007-10-31 | Hitachi Ltd | Reproducing apparatus, recording apparatus and display apparatus |
US6118873A (en) * | 1998-04-24 | 2000-09-12 | International Business Machines Corporation | System for encrypting broadcast programs in the presence of compromised receiver devices |
JP2995034B2 (ja) | 1998-04-30 | 1999-12-27 | 三洋電機株式会社 | ディジタル記録/再生システム |
JP3835655B2 (ja) * | 1998-06-09 | 2006-10-18 | ソニー株式会社 | 情報信号再生装置、情報信号処理装置、情報信号再生方法および情報信号出力方法 |
JP3819160B2 (ja) | 1998-09-18 | 2006-09-06 | 富士通株式会社 | 情報管理方法および情報管理装置 |
US6976265B1 (en) * | 1998-10-08 | 2005-12-13 | Ati International Srl | Method and apparatus for controlling display of content signals |
JP4356178B2 (ja) * | 1999-03-09 | 2009-11-04 | ソニー株式会社 | 再生装置 |
EP1045585A1 (de) * | 1999-04-13 | 2000-10-18 | CANAL+ Société Anonyme | Verfahren und Anlage zur sicheren Übertragung digitaler Daten zwischen Vorrichtungen |
US6690880B1 (en) * | 1999-05-21 | 2004-02-10 | Ati International, Srl | Method and apparatus for copy protection detection in a video signal |
JP4011792B2 (ja) * | 1999-06-16 | 2007-11-21 | 株式会社東芝 | 記録方法、再生方法、記録装置、再生装置及び記録媒体 |
JP4127587B2 (ja) | 1999-07-09 | 2008-07-30 | 株式会社東芝 | コンテンツ管理方法およびコンテンツ管理装置および記録媒体 |
US7380137B2 (en) * | 1999-07-20 | 2008-05-27 | International Business Machines Corporation | Content guard system for copy protection of recordable media |
US7120251B1 (en) * | 1999-08-20 | 2006-10-10 | Matsushita Electric Industrial Co., Ltd. | Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus |
EP2104100A3 (de) * | 1999-09-30 | 2012-02-22 | Panasonic Corporation | Informationsaufzeichnungsmedium zur Aufzeichnung eines verschlüsselten Teils von Inhaltsinformationen , und Verfahren und Gerät zur Wiedergabe von darauf aufgezeichneten Informationen |
CN1327560A (zh) * | 1999-10-25 | 2001-12-19 | 索尼公司 | 内容供给系统 |
US7706531B2 (en) * | 1999-12-28 | 2010-04-27 | Panasonic Corporation | Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods |
US7249105B1 (en) * | 2000-03-14 | 2007-07-24 | Microsoft Corporation | BORE-resistant digital goods configuration and distribution methods and arrangements |
JP2001307427A (ja) * | 2000-04-26 | 2001-11-02 | Pioneer Electronic Corp | 情報配信装置、情報配信方法並びに情報記録媒体及び情報記録装置 |
WO2001084836A2 (en) * | 2000-04-28 | 2001-11-08 | Broadcom Corporation | Cryptographic key distribution system and method for digital video systems |
US20020037081A1 (en) * | 2000-04-28 | 2002-03-28 | David Rogoff | Cryptographic key distribution system and method for digital video systems |
JP4156188B2 (ja) * | 2000-10-20 | 2008-09-24 | パイオニア株式会社 | 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及び情報出力記録方法並びに情報記録媒体 |
US6959090B1 (en) * | 2000-11-20 | 2005-10-25 | Nokia Corporation | Content Protection scheme for a digital recording device |
KR100763144B1 (ko) * | 2000-12-29 | 2007-10-08 | 주식회사 엘지이아이 | 연료전지 구동형 에어컨 |
US7058284B2 (en) * | 2001-03-29 | 2006-06-06 | Matsushita Electric Industrial Co., Ltd. | Universal multimedia optic disc player and its application for revocable copy protection |
EP1288942B1 (de) * | 2001-08-08 | 2005-01-12 | Matsushita Electric Industrial Co., Ltd. | Urheberrechtschutzsystem, Aufzeichungsvorrichtung, und Wiedergabevorrichtung |
JP4005026B2 (ja) * | 2001-12-13 | 2007-11-07 | 株式会社ソニー・コンピュータエンタテインメント | プログラムのセキュアな配布方法及び装置 |
CN100558033C (zh) * | 2001-12-21 | 2009-11-04 | 索尼计算机娱乐公司 | 用于安全分配程序内容的方法和装置 |
JP3941513B2 (ja) * | 2002-01-11 | 2007-07-04 | ソニー株式会社 | 記録方法、記録装置、再生方法及び再生装置 |
WO2003073295A1 (fr) * | 2002-02-27 | 2003-09-04 | Matsushita Electric Industrial Co., Ltd. | Dispositif hote |
JP4525350B2 (ja) * | 2003-01-15 | 2010-08-18 | ソニー株式会社 | 信号処理システム |
DE602004029555D1 (de) * | 2003-01-15 | 2010-11-25 | Panasonic Corp | Inhaltsschutzsystem, endgerät, endgerätmethode und speichermedium |
FR2850826B1 (fr) * | 2003-02-04 | 2005-04-01 | Medialive | Procede et dispositif de protection pour la diffusion securisee d'oeuvres audiovisuelles |
US7835520B2 (en) * | 2003-02-20 | 2010-11-16 | Zoran Corporation | Unique identifier per chip for digital audio/video data encryption/decryption in personal video recorders |
US20060179305A1 (en) * | 2004-03-11 | 2006-08-10 | Junbiao Zhang | WLAN session management techniques with secure rekeying and logoff |
US7506377B2 (en) | 2003-06-11 | 2009-03-17 | Hewlett-Packard Development Company, L.P. | Method and apparatus for playing content |
CN1906576B (zh) * | 2004-09-20 | 2010-05-12 | 索尼计算机娱乐公司 | 分布软件应用的方法与设备 |
US8504849B2 (en) * | 2004-12-21 | 2013-08-06 | Sandisk Technologies Inc. | Method for versatile content control |
US20070168292A1 (en) * | 2004-12-21 | 2007-07-19 | Fabrice Jogand-Coulomb | Memory system with versatile content control |
WO2006078029A1 (ja) * | 2005-01-24 | 2006-07-27 | Pioneer Corporation | 配信装置及び方法、受信装置及び方法、配信システム、並びにコンピュータプログラム |
US8639939B2 (en) * | 2006-07-07 | 2014-01-28 | Sandisk Technologies Inc. | Control method using identity objects |
US20100138652A1 (en) * | 2006-07-07 | 2010-06-03 | Rotem Sela | Content control method using certificate revocation lists |
US8613103B2 (en) * | 2006-07-07 | 2013-12-17 | Sandisk Technologies Inc. | Content control method using versatile control structure |
US8122501B2 (en) * | 2008-06-20 | 2012-02-21 | International Business Machines Corporation | Traitor detection for multilevel assignment |
US8108928B2 (en) * | 2008-06-20 | 2012-01-31 | International Business Machines Corporation | Adaptive traitor tracing |
US8422684B2 (en) * | 2008-08-15 | 2013-04-16 | International Business Machines Corporation | Security classes in a media key block |
JP4686584B2 (ja) * | 2008-09-12 | 2011-05-25 | 日立コンシューマエレクトロニクス株式会社 | ディジタル情報記録再生装置およびディジタル情報記録再生方法 |
JP4686583B2 (ja) * | 2008-09-12 | 2011-05-25 | 日立コンシューマエレクトロニクス株式会社 | ディジタル情報記録再生装置およびディジタル情報記録再生方法 |
US9104618B2 (en) * | 2008-12-18 | 2015-08-11 | Sandisk Technologies Inc. | Managing access to an address range in a storage device |
US8571209B2 (en) | 2009-01-19 | 2013-10-29 | International Business Machines | Recording keys in a broadcast-encryption-based system |
JP4686632B2 (ja) * | 2009-12-16 | 2011-05-25 | 日立コンシューマエレクトロニクス株式会社 | ディジタル情報記録再生装置、ディジタル情報記録再生方法 |
JP4686641B2 (ja) * | 2010-04-19 | 2011-05-25 | 日立コンシューマエレクトロニクス株式会社 | ディジタル放送受信装置、およびディジタル放送受信方法 |
WO2015145211A1 (en) * | 2014-03-27 | 2015-10-01 | Kam Fu Chan | Token key infrastructure and method for cloud services |
KR101565929B1 (ko) * | 2015-05-06 | 2015-11-04 | 서대프랜트(주) | 물 침투를 방지하는 이중연도 |
CN112487502A (zh) * | 2020-12-15 | 2021-03-12 | 平安国际智慧城市科技股份有限公司 | 设备鉴权方法、装置、电子设备及存储介质 |
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US4658093A (en) * | 1983-07-11 | 1987-04-14 | Hellman Martin E | Software distribution system |
US4644493A (en) | 1984-09-14 | 1987-02-17 | International Business Machines Corporation | Implementing a shared higher level of privilege on personal computers for copy protection of software |
JP2804807B2 (ja) * | 1989-12-15 | 1998-09-30 | 株式会社テック | 磁気記録再生システムの照合方法及びその照合方法を使用した商品販売管理システム |
NZ237080A (en) * | 1990-03-07 | 1993-05-26 | Ericsson Telefon Ab L M | Continuous synchronisation for duplex encrypted digital cellular telephony |
US5081676A (en) | 1990-10-04 | 1992-01-14 | Chou Wayne W | Method and apparatus for protecting multiple copies of computer software from unauthorized use |
US5222137A (en) * | 1991-04-03 | 1993-06-22 | Motorola, Inc. | Dynamic encryption key selection for encrypted radio transmissions |
EP0545472B1 (de) * | 1991-12-02 | 1999-10-20 | Koninklijke Philips Electronics N.V. | Geschlossenes Informationssystem mit Kopierschutz |
JPH064026A (ja) | 1992-06-17 | 1994-01-14 | Matsushita Electric Ind Co Ltd | 許可情報記述方法およびコピーガード付きデータ生成装置 |
JP3010930B2 (ja) * | 1992-09-24 | 2000-02-21 | 松下電器産業株式会社 | 記録再生装置 |
JPH06124539A (ja) | 1992-10-08 | 1994-05-06 | Sony Corp | ディジタルvtr |
US5319705A (en) * | 1992-10-21 | 1994-06-07 | International Business Machines Corporation | Method and system for multimedia access control enablement |
JPH06181044A (ja) | 1992-12-15 | 1994-06-28 | Nikon Corp | 荷電粒子顕微鏡 |
US5337357A (en) | 1993-06-17 | 1994-08-09 | Software Security, Inc. | Method of software distribution protection |
US5398285A (en) | 1993-12-30 | 1995-03-14 | Motorola, Inc. | Method for generating a password using public key cryptography |
JPH07221751A (ja) | 1994-02-07 | 1995-08-18 | Nippon Telegr & Teleph Corp <Ntt> | ディジタル情報複製方法及びその装置 |
JP2853727B2 (ja) * | 1994-02-22 | 1999-02-03 | 日本ビクター株式会社 | 再生プロテクト方法及びプロテクト再生装置 |
FI95756C (fi) * | 1994-03-21 | 1996-03-11 | Nokia Technology Gmbh | Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi |
US5416842A (en) * | 1994-06-10 | 1995-05-16 | Sun Microsystems, Inc. | Method and apparatus for key-management scheme for use with internet protocols at site firewalls |
US5513260A (en) | 1994-06-29 | 1996-04-30 | Macrovision Corporation | Method and apparatus for copy protection for various recording media |
US5719938A (en) | 1994-08-01 | 1998-02-17 | Lucent Technologies Inc. | Methods for providing secure access to shared information |
US5604800A (en) | 1995-02-13 | 1997-02-18 | Eta Technologies Corporation | Personal access management system |
US5615264A (en) | 1995-06-08 | 1997-03-25 | Wave Systems Corp. | Encrypted data package record for use in remote transaction metered data system |
US5719937A (en) * | 1995-12-06 | 1998-02-17 | Solana Technology Develpment Corporation | Multi-media copy management system |
JP3176030B2 (ja) * | 1996-01-08 | 2001-06-11 | 株式会社東芝 | 複製制御方法及び複製制御装置 |
US5784460A (en) | 1996-10-10 | 1998-07-21 | Protocall Technolgies, Inc. | Secured electronic information delivery system having a three-tier structure |
US5923754A (en) | 1997-05-02 | 1999-07-13 | Compaq Computer Corporation | Copy protection for recorded media |
-
1996
- 1996-01-08 JP JP00098596A patent/JP3176030B2/ja not_active Expired - Fee Related
- 1996-12-11 CN CN96190847A patent/CN1132373C/zh not_active Expired - Fee Related
- 1996-12-11 AU AU11099/97A patent/AU686058B2/en not_active Ceased
- 1996-12-11 US US08/817,903 patent/US6347846B1/en not_active Expired - Fee Related
- 1996-12-11 CA CA002199241A patent/CA2199241C/en not_active Expired - Fee Related
- 1996-12-11 KR KR1019970702109A patent/KR100311563B1/ko not_active IP Right Cessation
- 1996-12-11 DE DE69619654T patent/DE69619654T2/de not_active Expired - Fee Related
- 1996-12-11 WO PCT/JP1996/003608 patent/WO1997025711A1/ja active IP Right Grant
- 1996-12-11 EP EP96941827A patent/EP0814474B1/de not_active Expired - Lifetime
- 1996-12-30 TW TW085116288A patent/TW316301B/zh active
-
2002
- 2002-01-22 US US10/051,142 patent/US6842521B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0814474B1 (de) | 2002-03-06 |
DE69619654T2 (de) | 2002-11-07 |
US6842521B2 (en) | 2005-01-11 |
CN1176014A (zh) | 1998-03-11 |
CN1132373C (zh) | 2003-12-24 |
WO1997025711A1 (fr) | 1997-07-17 |
EP0814474A4 (de) | 2000-11-22 |
KR100311563B1 (ko) | 2002-04-17 |
CA2199241C (en) | 2001-02-20 |
AU686058B2 (en) | 1998-01-29 |
AU1109997A (en) | 1997-08-01 |
JP3176030B2 (ja) | 2001-06-11 |
JPH09190667A (ja) | 1997-07-22 |
US20020061105A1 (en) | 2002-05-23 |
US6347846B1 (en) | 2002-02-19 |
TW316301B (de) | 1997-09-21 |
CA2199241A1 (en) | 1997-07-09 |
EP0814474A1 (de) | 1997-12-29 |
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