G11B20/00253 - CPC Classification Index

ClassID:

198676 ⎘

G11B20/00253 - CPC Classification

Classification description:

Signal processing not specific to the method of recording or reproducing; Circuits therefor; 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 stored on the record carrier

Sub-classes:

G11B20/0026 » {the key being stored as a barcode} 19
G11B20/00275 » {the key being stored on a chip attached to the record carrier} 67
G11B20/00282 » {the key being stored in the content area, e.g. program area, data area or user area } 67
G11B20/00297 » {the key being stored in a management area, e.g. the video manager [VMG] of a DVD} 31
G11B20/00326 » {the key being embossed on the record carrier} 22
G11B20/00333 » {the key being stored in header data, e.g. in sector headers} 25
G11B20/0034 » {the key being stored as a hologram} 2
G11B20/00347 » {wherein the medium identifier is used as a key} 81
G11B20/00355 » {the record carrier having a label that provides the key} 4
G11B20/00362 » {the key being obtained from a media key block [MKB]} 130
G11B20/00369 » {wherein a first key, which is usually stored on a hidden channel, e.g. in the lead-in of a BD-R, unlocks a key locker containing a second} 16
G11B20/00376 » {the key being stored by varying the pit format, e.g. depth, width, length or edge positions} 54
G11B20/00384 » {the key being derived from a physical signature of the record carrier, e.g. unique feature set} 13
G11B20/00391 » {the key being stored in subcodes, e.g. in the Q subcode of a CD} 1
G11B20/00398 » {the key being stored in sync patterns} 2
G11B20/00405 » {the key being stored by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track} 74

Recent Application in this class:

20240403229

2024-12-05

Internal Storage In Cloud Disk To Support Encrypted Hard Drive And Other Stateful Features

20230385205

2023-11-30

Internal storage in cloud disk to support encrypted hard drive and other stateful features

20190205267

2019-07-04

Infernal storage in cloud disk to support encrypted hard drive and other stateful features

20180218467

2018-08-02

Secure content distribution system

20160267614

2016-09-15

Secure content distribution system

20160117486

2016-04-28

Out-of band tokens for rights access

20150380046

2015-12-31

Optional data encryption by partition for a partitionable data storage library

20150324596

2015-11-12

Bulk data erase utilizing an encryption technique

20150170702

2015-06-18

INFORMATION REPRODUCTION DEVICE AND METHOD OF PROVIDING CONTENT

#10

20150046719

2015-02-12

Information processing device, information processing method, and program

#11

20140324704

2014-10-30

Secure content distribution system

#12

20140137207

2014-05-15

Out-of-band tokens for rights access

#13

20140090083

2014-03-27

Information processing apparatus, information processing method, and program

#14

20130142325

2013-06-06

Memory

#15

20130042114

2013-02-14

Information processing device and information processing method, and program

#16

20120224696

2012-09-06

Interoperable digital rights management

#17

20120210140

2012-08-16

Information processing apparatus, information recording medium manufacturing apparatus, and information recording medium

#18

20120185662

2012-07-19

Limited use data storing device

#19

20120163151

2012-06-28

Optical disc, and production method and reproduction apparatus for optical disc

#20

20120056001

2012-03-08

Optical disc

#21

20120045062

2012-02-23

Information processing device, information processing method, and program

#22

20110320810

2011-12-29

Information processing device and information processing method

#23

20110314523

2011-12-22

Out-of-band tokens for rights access

#24

20110264923

2011-10-27

Method and system for secure access to non-volatile memory

#25

20110255690

2011-10-20

Reprogrammable security for controlling piracy and enabling interactive content

#26

20110208967

2011-08-25

Management apparatus and copying apparatus

#27

20110162075

2011-06-30

Storage device and method for providing a scalable content protection system

#28

20110119504

2011-05-19

CONTENT PROTECTING METHOD, CONTENT REPRODUCING APPARATUS, AND PROGRAM

#29

20110110517

2011-05-12

Content playback device

#30

20110103214

2011-05-05

DATA RECORDING MEDIUM, SERVER DEVICE USING THE SAME, AND METHOD OF MANAGING USE OF DATA RECORDING MEDIUM

#31

20110035423

2011-02-10

Reproducing apparatus, reproducing method, program, program storage medium, data delivery system, data structure, and manufacturing method of recording medium

#32

20110010565

2011-01-13

Apparatus and method for storing key data, library unit, and storage device

#33

20110002207

2011-01-06

Method and system for fluid mediated disk activation and deactivation

#34

20100277828

2010-11-04

Method and system for fluid mediated disk activation and deactivation

#35

20100262985

2010-10-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#36

20100262984

2010-10-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#37

20100262983

2010-10-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#38

20100262982

2010-10-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#39

20100262981

2010-10-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#40

20100262833

2010-10-14

Activating streaming video in a blu-ray disc player

#41

20100250961

2010-09-30

CONTROL DEVICE

#42

20100229069

2010-09-09

DRIVE DEVICE, CONTENT REPRODUCTION DEVICE, RECORDING DEVICE, DATA READOUT METHOD, PROGRAM, RECORDING MEDIUM, AND INTEGRATED CIRCUIT

#43

20100223477

2010-09-02

CONTENT REPRODUCING DEVICE, CONTENT REPRODUCING METHOD, RECORDING MEDIUM, AND INTEGRATED CIRCUIT

#44

20100195471

2010-08-05

Optical storage medium, optical read/write apparatus, and optical read/write method

#45

20100174917

2010-07-08

INFORMATION RECORDING MEDIUM, REPRODUCING APPARATUS AND CUMPUTER PROGRAM

#46

20100169222

2010-07-01

Method for Secure Storage and Delivery of Media Content

#47

20100161633

2010-06-24

Method for providing a suggested read list of digital data to a host device

#48

20100138673

2010-06-03

Method for Secure Storage and Delivery of Media Content

#49

20100131775

2010-05-27

Method for Secure Storage and Delivery of Media Content

#50

20100131774

2010-05-27

Method for Secure Storage and Delivery of Media Content

#51

20100131411

2010-05-27

Method for Secure Storage and Delivery of Media Content

#52

20100118681

2010-05-13

Optical recording medium with write-once and rewritable properties

#53

20100095113

2010-04-15

Secure content distribution system

#54

20100054462

2010-03-04

Information playing/reproducing apparatus and method

#55

20100046352

2010-02-25

Method of manufacturing a limited use data storing device

#56

20100031061

2010-02-04

Data storage device and management method of cryptographic key thereof

#57

20100027975

2010-02-04

PLAYBACK DEVICE AND PLAYBACK SYSTEM

#58

20100027797

2010-02-04

Playing Apparatus and Management Method

#59

20100002566

2010-01-07

INFORMATION RECORDING MEDIUM, AND METHOD OF MANUFACTURING INFORMATION RECORDING MEDIUM

#60

20090300735

2009-12-03

METHOD FOR CONTROLLING ACCESS TO CONTENT ON DATA CARRIER

#61

20090290710

2009-11-26

UNLOCKING A PROTECTED PORTABLE STORAGE MEDIUM

#62

20090274026

2009-11-05

Optical storage medium, information recording apparatus, and information reproducing apparatus

#63

20090268598

2009-10-29

Optical storage medium, information recording apparatus, and information reproducing apparatus

#64

20090268590

2009-10-29

OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS

#65

20090245061

2009-10-01

Apparatus for manufacturing information record medium, information record medium, information recording apparatus and information recording method

#66

20090238362

2009-09-24

Disc manufacturing method, data recording apparatus, information recording medium, information processing apparatus and method, and computer program

#67

20090232312

2009-09-17

ENCRYPTED CONTENT REPRODUCTION DEVICE, ENCRYPTED CONTENT REPRODUCTION METHOD, PROGRAM, AND RECORDING MEDIUM FOR STORING THE PROGRAM

#68

20090214042

2009-08-27

Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium

#69

20090202071

2009-08-13

RECORDING APPARATUS, REPRODUCING APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR RECORDING AND REPRODUCING

#70

20090177886

2009-07-09

Storage apparatus, method for validating encrypted content and terminal apparatus

#71

20090169019

2009-07-02

Method and systems using identifier tags and authenticity certificates for detecting counterfeited or stolen brand objects

#72

20090138726

2009-05-28

Authentication-secured access to a data carrier comprising a mass storage device and chip

#73

20090122670

2009-05-14

Data retrieval systems

#74

20090122666

2009-05-14

Limited use memory device with associated information

#75

20090122660

2009-05-14

Data retrieval systems

#76

20090109832

2009-04-30

Recording Disc

#77

20090106562

2009-04-23

Method of protecting data saved to recording medium and data storage apparatus adopting method

#78

20090105859

2009-04-23

Playback program

#79

20090097644

2009-04-16

Playback apparatus and playback control method

#80

20090087171

2009-04-02

Information recording medium in which groove tracks are wobbled by frequency 2n times wobble frequency of standard

#81

20090080296

2009-03-26

Optical disc

#82

20090055650

2009-02-26

CONTENT PLAYBACK DEVICE, CONTENT PLAYBACK METHOD, CONTENT PLAYBACK PROGRAM, AND INTEGRATED CIRCUIT

#83

20090052664

2009-02-26

Bulk data erase utilizing an encryption technique

#84

20090046553

2009-02-19

Protection of disk data carriers against making illegal copies

#85

20090013195

2009-01-08

Data storing method, data playback method, data recording device, data playback device, and recording medium

#86

20090010117

2009-01-08

Optical disk manufacturing method and device, optical disk, and reproduction method thereof

#87

20090003608

2009-01-01

Block-level storage device with content security

#88

20090003143

2009-01-01

Recording Medium, Recording/Reproduction Apparatus and Replay Apparatus

#89

20080304401

2008-12-11

INFORMATION RECORDING MEDIUM, INFORMATION RECORDING METHOD, AND INFORMATION REPRODUCING METHOD

#90

20080294908

2008-11-27

Recording Device, Content Key Processing Device, Recording Medium, and Recording Method

#91

20080279383

2008-11-13

METHOD AND APPARATUS OF ENCIPHERING AND DECIPHERING DATA USING MULTIPLE KEYS

#92

20080263367

2008-10-23

Digital content protection system

#93

20080260161

2008-10-23

Terminal Device and Copyright Protection System

#94

20080226077

2008-09-18

Apparatus, method, and computer program product for playing back content

#95

20080210747

2008-09-04

Information processing apparatus, information recording medium manufacturing apparatus, and information recording medium

#96

20080198733

2008-08-21

Information storage medium, information recording method, and information reproducing method

#97

20080186839

2008-08-07

Optical Information Carrier

#98

20080163351

2008-07-03

Out-of-band tokens for rights access

#99

20080159109

2008-07-03

Method and system for fluid mediated disk activation and deactivation

#100

20080159108

2008-07-03

Method and system for fluid mediated disk activation and deactivation

#101

20080155311

2008-06-26

TECHNIQUE FOR DETERMINING THE START POSITION TO WRITE DATA ON TAPE WITH RESISTANCE FOR MEDIA DEFECT

#102

20080137848

2008-06-12

Reprogrammable security for controlling piracy and enabling interactive content using revocation status

#103

20080133938

2008-06-05

Self-protecting digital content

#104

20080130885

2008-06-05

Reproducing device, recording device, recording medium, data processing method, data processing program, data recording method, data recording program, and integrated circuit

#105

20080123481

2008-05-29

Method for Saving ther Keylockers on Optical Discs

#106

20080121701

2008-05-29

MULTIMEDIA GENERATION SYSTEM AND METHOD FOR BIOMETRIC EMBEDDED DIGITAL MULTIMEDIA DATA

#107

20080114992

2008-05-15

Interoperable digital rights management

#108

20080101604

2008-05-01

Self-protecting digital content

#109

20080100945

2008-05-01

Formatted storage media providing space for encrypted text and dedicated space for clear text

#110

20080094970

2008-04-24

Method and system for fluid mediated disk activation and deactivation

#111

20080075284

2008-03-27

Public key media key block

#112

20080072332

2008-03-20

Method of and apparatus for reproducing information, and security module

#113

20080072076

2008-03-20

Method of and apparatus for reproducing information, and security module

#114

20080072075

2008-03-20

Method of and apparatus for reproducing information, and security module

#115

20080044017

2008-02-21

#116

20080016342

2008-01-17

Recording medium, content player, content player method, and computer program

#117

20070300078

2007-12-27

Recording medium, and device and method for recording information on recording medium

#118

20070283442

2007-12-06

Recording/Reproduction Device And Content Protection System

#119

20070276756

2007-11-29

Recording/Reproducing Device, Recording Medium Processing Device, Reproducing Device, Recording Medium, Contents Recording/Reproducing System, And Contents Recording/Reproducing Method

#120

20070266443

2007-11-15

Certified HDD with network validation

#121

20070258349

2007-11-08

Information Recording Medium

#122

20070258339

2007-11-08

Information Recording Medium

#123

20070253316

2007-11-01

Method of manufacturing a limited use data storing device

#124

20070223705

2007-09-27

Storage Medium Processing Method, Storage Medium Processing Apparatus, and Program

#125

20070206463

2007-09-06

Information Recording Medium

#126

20070198424

2007-08-23

Content playback device

#127

20070195447

2007-08-23

Optional data encryption by partition for a partitionable data storage library

#128

20070189718

2007-08-16

Reproduction device and reproduction method, program and program storage medium, data distribution system, data structure, and method for manufacturing recording medium

#129

20070143594

2007-06-21

Method for distributing digital data and burning them on a DVD, client device and remote server associated

#130

20070143226

2007-06-21

Method and apparatus for securing and authenticating encoded data and documents containing such data

#131

20070140089

2007-06-21

Optical storage medium, optical read/write apparatus, and optical read/write method

#132

20070133378

2007-06-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#133

20070133371

2007-06-14

Optical storage medium, optical read/write apparatus, and optical read/write method

#134

20070124603

2007-05-31

Content reproduction system

#135

20070124556

2007-05-31

Method and apparatus for restricting playback of recorded digital signals

#136

20070116280

2007-05-24

Information processing apparatus and method, information recording medium manufacturing apparatus and method, and information recording medium

#137

20070116278

2007-05-24

Information recording/playback apparatus and method

#138

20070112685

2007-05-17

Contents distribution system, recording apparatus, signature apparatus, contents supply apparatus, and contents playback apparatus

#139

20070094143

2007-04-26

Multimedia-type contents reproduction device and reproduction method, and recording medium having stored thereon data used for the same

#140

20070073620

2007-03-29

Method and apparatus for decrypting an encrypted supplementary data set

#141

20070067646

2007-03-22

Recording medium, apparatus for decrypting data and method thereof

#142

20070061888

2007-03-15

Optical disc registration system

#143

20070058505

2007-03-15

Data recovery systems

#144

20070058450

2007-03-15

Limited use data storing device

#145

20070056042

2007-03-08

Mobile memory system for secure storage and delivery of media content

#146

20070043667

2007-02-22

Method for secure storage and delivery of media content

#147

20070033419

2007-02-08

Reprogrammable security for controlling piracy and enabling interactive content

#148

20070033352

2007-02-08

Limited use data storing device

#149

20070016919

2007-01-18

Method of processing broadcast signal in television receiver and television receiver using the same

#150

20070002708

2007-01-04

Rotation responsive disk activation and deactivation mechanisms

#151

20060291354

2006-12-28

Method and system for fluid mediated disk activation and deactivation

#152

20060277415

2006-12-07

Content protection method and system

#153

20060254408

2006-11-16

Recording control method

#154

20060253692

2006-11-09

Limited use memory device with associated information

#155

20060250923

2006-11-09

Method and system for fluid mediated disk activation and deactivation

#156

20060212697

2006-09-21

Content reproduction apparatus and content reproduction method

#157

20060203799

2006-09-14

Method and circuit for reading data from a data carrier

#158

20060195911

2006-08-31

Information processing apparatus and method, content management system, information recording medium, and computer program

#159

20060178995

2006-08-10

Secure pre-recorded digital medium

#160

20060177054

2006-08-10

Data processing apparatus, data recording apparatus, data playback apparatus, and data storage method

#161

20060168357

2006-07-27

Information input/output system

#162

20060159426

2006-07-20

Data transmitting method, recording medium, apparatus for reproducing data from recording medium using local storage and method thereof

#163

20060158766

2006-07-20

Information reproducing apparatus and information recording/reproducing apparatus

#164

20060155649

2006-07-13

Information signal reproducing apparatus, information signal outputting apparatus, information signal reproducing method, and information signal outputting method

#165

20060153017

2006-07-13

Method and apparatus for protecting shared data and method and apparatus for reproducing data from recording medium using local storage

#166

20060123319

2006-06-08

Signal processing method and apparatus, signal reproducing method and apparatus, and recording medium

#167

20060087956

2006-04-27

Multi-layer optical disc format

#168

20060078111

2006-04-13

Method and apparatus for DVD copy protection with selective data pattern insertion

#169

20060077812

2006-04-13

Player/recorder, contents playing back method and contents recording method

#170

20060069925

2006-03-30

Content processing device, content accumulation medium, content processing method and content processing program

#171

20060067529

2006-03-30

Content management method and recording medium

#172

20060067200

2006-03-30

Apparatus for manufacturing information record medium, information record medium, information recording apparatus and information recording method

#173

20060064594

2006-03-23

Absorptive coating on a disc to create a reflective modulation for encryption

#174

20060062130

2006-03-23

Apparatus for manufacturing information record medium, information record medium, information recording apparatus and information recording method

#175

20060046011

2006-03-02

Method for key generation for digital rights control, recording medium, player, recorder and system for copy right control

#176

20060023596

2006-02-02

Information recording medium, information recording/reproducing apparatus and information management method

#177

20060005257

2006-01-05

Encrypted contents recording medium and apparatus and method for reproducing encrypted contents

#178

20060002561

2006-01-05

Apparatus and/or method for encryption and/or decryption for multimedia data

#179

20050273618

2005-12-08

Information recording medium, information recording device, information reproduction device, information delivery device, their methods, their programs, and recording medium recording programs thereon

#180

20050246777

2005-11-03

Entry point for digital rights management data

#181

20050220303

2005-10-06

Recording data recording method, recording data reproduction method, recording device, reproduction device, and multi-layered optical recording medium

#182