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Application filed by Koninkl Philips Electronics NvfiledCriticalKoninkl Philips Electronics Nv
Publication of BR0302854ApublicationCriticalpatent/BR0302854A/en
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
G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server
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
G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the 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
G11B20/00884—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
Landscapes
Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Signal Processing (AREA)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Storage Device Security (AREA)
Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
BR0302854-2A2002-01-282003-01-17 Method to obtain authorization to authorize a media bearer replication process, replication system arranged for a media bearer replication process, and verification server arranged to authorize a media bearer replication processBR0302854A (en)
Method to obtain authorization to authorize a media bearer replication process, replication system arranged for a media bearer replication process, and verification server arranged to authorize a media bearer replication process
Method to obtain authorization to authorize a media bearer replication process, replication system arranged for a media bearer replication process, and verification server arranged to authorize a media bearer replication process