IL139306A0 - Anti-copying methods and devices for digital information signals - Google Patents

Anti-copying methods and devices for digital information signals

Info

Publication number
IL139306A0
IL139306A0 IL13930699A IL13930699A IL139306A0 IL 139306 A0 IL139306 A0 IL 139306A0 IL 13930699 A IL13930699 A IL 13930699A IL 13930699 A IL13930699 A IL 13930699A IL 139306 A0 IL139306 A0 IL 139306A0
Authority
IL
Israel
Prior art keywords
devices
digital information
information signals
copying methods
copying
Prior art date
Application number
IL13930699A
Original Assignee
Spiro J Pandelidis High Tech A
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
Priority claimed from EP98201432A external-priority patent/EP0955634A1/en
Application filed by Spiro J Pandelidis High Tech A filed Critical Spiro J Pandelidis High Tech A
Publication of IL139306A0 publication Critical patent/IL139306A0/en

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
IL13930699A 1998-05-04 1999-05-04 Anti-copying methods and devices for digital information signals IL139306A0 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98201432A EP0955634A1 (en) 1998-05-04 1998-05-04 Anti-copying system for audio signals
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
IL139306A0 true IL139306A0 (en) 2001-11-25

Family

ID=26150285

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13930699A IL139306A0 (en) 1998-05-04 1999-05-04 Anti-copying methods and devices for digital information signals

Country Status (2)

Country Link
DE (1) DE69905358D1 (en)
IL (1) IL139306A0 (en)

Also Published As

Publication number Publication date
DE69905358D1 (en) 2003-03-20

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