ClassID:

198678

G11B20/00268 - 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 the key being stored as a barcode said barcode being recorded in a burst cutting area [BCA]

Recent Application in this class:
#1
20140347968
2014-11-27

Method and system for disc authentication and security

#2
20120230172
2012-09-13

OPTICAL INFORMATION MEDIUM, OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS, AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD

#3
20120002520
2012-01-05

Playback device, recording medium, playback method and program

#4
20110286315
2011-11-24

Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk

#5
20110255387
2011-10-20

BCA recording device for optical disc, optical disc reproducing device, and recordable optical disc

#6
20110103214
2011-05-05

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

#7
20110007618
2011-01-13

Preventing unauthorized use of optical discs

#8
20100322056
2010-12-23

Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium

#9
20090231967
2009-09-17

RENDERING PRE-RECORDED AND ADDITIONAL CONTENT

#10
20090168619
2009-07-02

Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk

#11
20090154314
2009-06-18

Information processing device, disc, information processing method, and program

#12
20090073861
2009-03-19

Recording medium including first and second areas, the second area including a written multiply block, and recording and reproducing methods and apparatus thereof

#13
20090073848
2009-03-19

Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium

#14
20090052314
2009-02-26

Recording medium with optional information and apparatus and methods for forming, recording, reproducing and controlling reproduction of the recording medium

#15
20090046553
2009-02-19

Protection of disk data carriers against making illegal copies

#16
20080310292
2008-12-18

OPTICAL DISK, OPTICAL DISK RECORDING AND REPRODUCING APPARATUS, METHOD FOR RECORDING, REPRODUCING AND DELETING DATA ON OPTICAL DISK, AND INFORMATION PROCESSING SYSTEM

#17
20080298221
2008-12-04

Optical recording medium, manufacturing method for optical recording medium, and reproducing method for optical recording medium

#18
20080291801
2008-11-27

Record Carrier with Copy Protection Means

#19
20080267049
2008-10-30

Optical disc drive

#20
20080267031
2008-10-30

Optical disc drive

#21
20080229119
2008-09-18

Method and apparatus for information carrier authentication

#22
20080181077
2008-07-31

Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof

#23
20080152137
2008-06-26

Recording device, replay device, integrated circuit, and control program

#24
20080069354
2008-03-20

Information Processing Device, Information Processing Method, and Computer Program

#25
20080068965
2008-03-20

DATA PROCESSING APPARATUS, RECORDER AND DISK WITH MULTIPLE STORAGE LAYERS

#26
20080046794
2008-02-21

Information recording device and method, information reproducing device and method, recording medium, program, and disc recording medium

#27
20080043607
2008-02-21

Recording medium with intermittent or alternate wobbled pits and apparatus and methods for forming, recording, and reproducing the recording medium

#28
20080022095
2008-01-24

Information access control method and device and write-once medium

#29
20070285818
2007-12-13

Information recording device and method, information reproducing device and method, recording medium, program, and disc recording medium

#30
20070204202
2007-08-30

Information recording disc, recording and/or reproducing device and method

#31
20070201333
2007-08-30

Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof

#32
20070198894
2007-08-23

Information recording disc, recording and/or reproducing device and method

#33
20070198842
2007-08-23

Data production method and apparatus

#34
20070127352
2007-06-07

Optical recording medium having BCA of write-once information

#35
20070124603
2007-05-31

Content reproduction system

#36
20070118765
2007-05-24

Method and system of decrypting disc

#37
20070118764
2007-05-24

Optical disc, player for the optical disc and its play back method

#38
20070081437
2007-04-12

Optical disc

#39
20070050585
2007-03-01

Selectively enabling playback of content on an optical medium

#40
20070047426
2007-03-01

Optical disc drive

#41
20070025219
2007-02-01

Information playback apparatus and information playback method

#42
20070025214
2007-02-01

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

#43
20070025211
2007-02-01

Data sampling and extraction method and system

#44
20060181991
2006-08-17

Disk having unique code for identifying its type for optical disk player and method for discriminating types thereof

#45
20060171293
2006-08-03

Disk recording medium having ID recorded over a circle of a burst cutting area

#46
20060164944
2006-07-27

Recording medium with copy protection information formed in intermittent or alternate wobbled pits and apparatus and methods for forming, recording, and reproducing the recording medium

#47
20060156038
2006-07-13

Recording medium with copy protection indicating information and apparatus and methods for forming, recording, reproducing and restricting reproduction of the recording medium

#48
20060131407
2006-06-22

Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk

#49
20060092808
2006-05-04

Disk-like recording medium, disk recording apparatus and disk recording method, and disk playback apparatus and disk playback method

#50
20060092799
2006-05-04

Method for reading burst cutting area (BCA) data from optical disc and an optical disc apparatus

#51
20060062115
2006-03-23

Optical disc, recording apparatus and method, and reproduction apparatus and method

#52
20060039262
2006-02-23

Optical disc, recording apparatus method, and reproduction apparatus and method

#53
20050238324
2005-10-27

Recording medium and production method, playback method, and playback device thereof

#54
20050213234
2005-09-29

Information recording and playback apparatus, content management method, and content management program capable of preventing illegal copying of content

#55
20050201260
2005-09-15

Optical recording medium, optical recording medium manufacturing method, and optical recording medium reproducing method

#56
20050185548
2005-08-25

Information access control for optical media

#57
20050185547
2005-08-25

Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system

#58
20050174915
2005-08-11

Optical disc, recording apparatus and method, and reproduction apparatus and method

#59
20050163030
2005-07-28

Optical recording medium and recording method for the same

#60
20050163028
2005-07-28

Optical recording medium and recording method for the same

#61
20050163027
2005-07-28

Optical recording medium and recording method for the same

#62
20050163026
2005-07-28

Magneto-optical recording medium having watermark for preventing unauthorized copy

#63
20050163009
2005-07-28

Optical recording medium and recording method for the same

#64
20050047295
2005-03-03

Storage medium storing copy protection data in burst cutting area using the on-off keying modulation method