DE69905358D1 - Anti-kopieren verfahren und vorrichtungen für digitale informationssignale - Google Patents
Anti-kopieren verfahren und vorrichtungen für digitale informationssignaleInfo
- Publication number
- DE69905358D1 DE69905358D1 DE69905358T DE69905358T DE69905358D1 DE 69905358 D1 DE69905358 D1 DE 69905358D1 DE 69905358 T DE69905358 T DE 69905358T DE 69905358 T DE69905358 T DE 69905358T DE 69905358 D1 DE69905358 D1 DE 69905358D1
- Authority
- DE
- Germany
- Prior art keywords
- devices
- digital information
- information signals
- copying method
- copying
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
- H04H20/31—Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
-
- 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
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
- G11B20/00891—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm embedded in audio data
-
- 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
- G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
- G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/18—Arrangements for conditional access to broadcast information or to broadcast-related services on copying information
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98201432A EP0955634A1 (de) | 1998-05-04 | 1998-05-04 | System gegen Kopieren für Tonsignale |
US09/106,858 US6904153B1 (en) | 1998-05-04 | 1998-06-30 | Anti-copying system for audio signals |
PCT/EP1999/003231 WO1999057723A2 (en) | 1998-05-04 | 1999-05-04 | Anti-copying methods and devices for digital information signals |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69905358D1 true DE69905358D1 (de) | 2003-03-20 |
Family
ID=26150285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69905358T Expired - Lifetime DE69905358D1 (de) | 1998-05-04 | 1999-05-04 | Anti-kopieren verfahren und vorrichtungen für digitale informationssignale |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE69905358D1 (de) |
IL (1) | IL139306A0 (de) |
-
1999
- 1999-05-04 DE DE69905358T patent/DE69905358D1/de not_active Expired - Lifetime
- 1999-05-04 IL IL13930699A patent/IL139306A0/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IL139306A0 (en) | 2001-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |