ClassID:

198697

G11B20/00405 - 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 by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track

Recent Application in this class:
#1
20140149661
2014-05-29

Information carrier comprising access information

#2
20120170434
2012-07-05

Information recorder, information reproducer, recording media manufacturing system, and information recording media, method and program

#3
20120147723
2012-06-14

Recording medium manufacturing device and method

#4
20120113788
2012-05-10

Information carrier comprising access information

#5
20120096326
2012-04-19

Optical disk reproduction apparatus, optical disk reproduction method, reproduction processing device and reproduction processing method

#6
20110107111
2011-05-05

Information carrier comprising access information and dummy information

#7
20100246355
2010-09-30

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM

#8
20090285058
2009-11-19

Mastering device, disc manufacturing method, disc-shaped recording medium, disc reproduction device, and disc reproduction method

#9
20090279415
2009-11-12

Information recording medium

#10
20090279413
2009-11-12

Information recording medium

#11
20090279411
2009-11-12

Information recording medium

#12
20090259852
2009-10-15

Reliable storage medium access control method and device

#13
20090087171
2009-04-02

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

#14
20090086614
2009-04-02

Optical disc on which information is written on a block-by-block basis

#15
20090086589
2009-04-02

Optical disk having wobble patterns representing control information

#16
20090052314
2009-02-26

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

#17
20080291801
2008-11-27

Record Carrier with Copy Protection Means

#18
20080219111
2008-09-11

Drive and Method of Operating the Drive and an Optical Data Carrier Therefore

#19
20080068966
2008-03-20

Information recording medium

#20
20080059377
2008-03-06

METHOD FOR MANAGING COPY PROTECTION INFORMATION OF RECORDING MEDIUM

#21
20080049593
2008-02-28

Information recording medium

#22
20080049592
2008-02-28

Information recording medium

#23
20080049591
2008-02-28

Information recording medium

#24
20080043608
2008-02-21

Information recording medium

#25
20080043606
2008-02-21

Information recording medium

#26
20080043605
2008-02-21

Information recording medium

#27
20080043603
2008-02-21

Information recording medium

#28
20080043601
2008-02-21

Information recording medium

#29
20080043600
2008-02-21

Information recording medium

#30
20080043599
2008-02-21

Information recording medium

#31
20070297318
2007-12-27

Mastering device, disc manufacturing method, disc-shaped recording medium, disc reproduction device, and disc reproduction method

#32
20070211597
2007-09-13

Data reproducing apparatus including subsignal generated from ID information

#33
20070198842
2007-08-23

Data production method and apparatus

#34
20070171801
2007-07-26

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings with binary number series features

#35
20070165508
2007-07-19

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disks, and optical disk formed with pit strings and mark strings

#36
20070147207
2007-06-28

Apparatus for, and method of, recording/playing audio data having additional information embedded therein

#37
20070081432
2007-04-12

Optical disk having wobble patterns representing control information

#38
20070067650
2007-03-22

Data outputting method, data outputting apparatus, data reproducing method, data reproducing apparatus, data recording method, data recording apparatus, and record medium

#39
20070067649
2007-03-22

Data outputting method, data outputting apparatus, data reproducing method, data reproducing apparatus, data recording method, data recording apparatus, and record medium

#40
20070067648
2007-03-22

Data outputting method, data outputting apparatus, data reproducing method, data reproducing apparatus, data recording method, data recording apparatus, and record medium

#41
20070002719
2007-01-04

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk

#42
20060245329
2006-11-02

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disks formed with pits strings and mark strings

#43
20060242071
2006-10-26

Method for minimizing pirating and/or unauthorized copying and/or unauthorized access of/to data on/from data media including compact discs and digital versatile discs, and system and data media for same

#44
20060239165
2006-10-26

Data reproducing apparatus including subsignal generated from ID information

#45
20060239164
2006-10-26

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disks formed with pits strings and mark strings

#46
20060239163
2006-10-26

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disks formed with pits strings and mark strings

#47
20060221793
2006-10-05

Optical disk recording apparatus, method, manufacturing apparatus and information processing device including binary number series generating unit features regarding an address on an optical disk

#48
20060221784
2006-10-05

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings

#49
20060209664
2006-09-21

Information recording medium

#50
20060203698
2006-09-14

Information recording medium

#51
20060190741
2006-08-24

Information carrier comprising access information

#52
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

#53
20060120254
2006-06-08

Information recording medium

#54
20060114773
2006-06-01

Apparatus and method for optically recording sub data through radial deviation of pits or marks

#55
20060109777
2006-05-25

Information recording medium

#56
20060104192
2006-05-18

Optical media with control data in wobble

#57
20060092823
2006-05-04

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings with radial deviation features

#58
20060087950
2006-04-27

Reliable storage medium access control method and device

#59
20060083143
2006-04-20

Apparatus and method for manufacturing optical disks, apparatus and method for recording data on optical disks, apparatus and method for reproducing data from optical disks, and optical disk formed with pit strings and mark strings

#60
20060064601
2006-03-23

Information carrier comprising access information and dummy information

#61
20050251481
2005-11-10

Flexible host system for storage media

#62
20050237911
2005-10-27

Information recording medium

#63
20050237886
2005-10-27

Information carrier provided with a transitional region between the clambing area and the information area

#64
20050232128
2005-10-20

Information recording medium

#65
20050185548
2005-08-25

Information access control for optical media

#66
20050174909
2005-08-11

Information recorder information recording method optical recording medium and information processor

#67
20050169134
2005-08-04

Apparatus and associated methodology of imparting content protection to optically recorded data for secure reproduction

#68
20050163002
2005-07-28

Apparatus and associated methodology of imparting content protection to optically recorded data for secure reproduction

#69
20050144470
2005-06-30

Method and apparatus for processing information, information storage medium, and computer program

#70
20050141708
2005-06-30

Method for copy protection of digital content

#71
20050122889
2005-06-09

Mastering device, disc manufacturing method, disc-shaped recording medium, disc reproduction device, and disc reproduction method

#72
20050089162
2005-04-28

Information recording processing apparatus, information reproduction processing apparatus, information recording medium, information recording processing method, information reproduction processing method, and computer program

#73
20050076225
2005-04-07

Method and apparatus for verifying the intergrity of system data

#74
20050044370
2005-02-24

Increasing integrity of watermarks using robust features