DE69734573D1 - Kopier- und wiedergabeschutz für digitale programme - Google Patents

Kopier- und wiedergabeschutz für digitale programme

Info

Publication number
DE69734573D1
DE69734573D1 DE69734573T DE69734573T DE69734573D1 DE 69734573 D1 DE69734573 D1 DE 69734573D1 DE 69734573 T DE69734573 T DE 69734573T DE 69734573 T DE69734573 T DE 69734573T DE 69734573 D1 DE69734573 D1 DE 69734573D1
Authority
DE
Germany
Prior art keywords
copying
code
digital programs
playback protection
copy
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 - Lifetime
Application number
DE69734573T
Other languages
English (en)
Other versions
DE69734573T2 (de
Inventor
J Cookson
S Ostrover
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Warner Bros Home Entertainment Inc
Original Assignee
Warner Bros Entertainment Inc
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 Warner Bros Entertainment Inc filed Critical Warner Bros Entertainment Inc
Publication of DE69734573D1 publication Critical patent/DE69734573D1/de
Application granted granted Critical
Publication of DE69734573T2 publication Critical patent/DE69734573T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B20/00166—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
    • G11B20/00173—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source
    • 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • 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
    • G11B20/00731—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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/283—Security features, e.g. digital codes
    • G11B23/284—Security features, e.g. digital codes on the record carrier
    • 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]
DE69734573T 1996-03-08 1997-02-05 Kopier- und wiedergabeschutz für digitale programme Expired - Lifetime DE69734573T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US612567 1996-03-08
US08/612,567 US5896454A (en) 1996-03-08 1996-03-08 System and method for controlling copying and playing of digital programs
PCT/US1997/001990 WO1997033283A1 (en) 1996-03-08 1997-02-05 Copying and playing protection for digital programs

Publications (2)

Publication Number Publication Date
DE69734573D1 true DE69734573D1 (de) 2005-12-15
DE69734573T2 DE69734573T2 (de) 2006-08-10

Family

ID=24453718

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69734573T Expired - Lifetime DE69734573T2 (de) 1996-03-08 1997-02-05 Kopier- und wiedergabeschutz für digitale programme

Country Status (11)

Country Link
US (1) US5896454A (de)
EP (1) EP0885443B1 (de)
JP (1) JP3459832B2 (de)
KR (1) KR100308594B1 (de)
AT (1) ATE309605T1 (de)
AU (1) AU711643B2 (de)
CA (1) CA2232708C (de)
DE (1) DE69734573T2 (de)
DK (1) DK0885443T3 (de)
ES (1) ES2253770T3 (de)
WO (1) WO1997033283A1 (de)

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Also Published As

Publication number Publication date
CA2232708C (en) 2000-08-08
EP0885443A1 (de) 1998-12-23
DE69734573T2 (de) 2006-08-10
DK0885443T3 (da) 2006-03-27
CA2232708A1 (en) 1997-09-12
AU1859497A (en) 1997-09-22
US5896454A (en) 1999-04-20
JP3459832B2 (ja) 2003-10-27
ATE309605T1 (de) 2005-11-15
KR100308594B1 (ko) 2001-11-30
JP2000501875A (ja) 2000-02-15
EP0885443A4 (de) 1999-08-25
KR19990063941A (ko) 1999-07-26
EP0885443B1 (de) 2005-11-09
ES2253770T3 (es) 2006-06-01
AU711643B2 (en) 1999-10-21
WO1997033283A1 (en) 1997-09-12

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