ClassID:

198659

G11B20/0013 - 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 measures which result in a restriction to authorised record carriers wherein the measure concerns not the entire record carrier, but a specific physical or logical area of one or more record carriers

Recent Application in this class:
#1
20190066726
2019-02-28

Apparatus and method for recording and erasing user data on a recordable optical disc

#2
20180101488
2018-04-12

Secure direct memory access

#3
20170004100
2017-01-05

Secure direct memory access

#4
20160080942
2016-03-17

Location-based regulation of access

#5
20150170702
2015-06-18

INFORMATION REPRODUCTION DEVICE AND METHOD OF PROVIDING CONTENT

#6
20140149661
2014-05-29

Information carrier comprising access information

#7
20130283391
2013-10-24

Secure direct memory access

#8
20120113788
2012-05-10

Information carrier comprising access information

#9
20110107111
2011-05-05

Information carrier comprising access information and dummy information

#10
20100235508
2010-09-16

Location-based regulation of access

#11
20100226222
2010-09-09

Method for emulating optical disk, optical disk drive using the same, and optical disk including security zone

#12
20100149960
2010-06-17

Information recording medium having a wobbling groove structure

#13
20100034060
2010-02-11

Optical disc comprising a watermark and a method and recorder for recording such a disc

#14
20100014402
2010-01-21

Read-once record medium and a system with read protecting function

#15
20090226659
2009-09-10

Read-once record medium and a system with read protecting function

#16
20090226153
2009-09-10

METHODS AND SYSTEMS FOR STORING AND DECODING DATA

#17
20090073865
2009-03-19

Information recording medium having a wobbling groove structure

#18
20090073864
2009-03-19

Information recording medium having a wobbling groove structure

#19
20090073863
2009-03-19

Information recording medium having a wobbling groove structure

#20
20080219141
2008-09-11

Information recording medium having a wobbling groove structure

#21
20070212511
2007-09-13

Read-once record medium and a system with read protecting function

#22
20070180210
2007-08-02

Storage device for providing flexible protected access for security applications

#23
20070133384
2007-06-14

Information recording medium having a wobbling groove structure

#24
20070133383
2007-06-14

Information recording medium having a wobbling groove structure

#25
20070086289
2007-04-19

Information recording medium having a wobbling groove structure

#26
20070086287
2007-04-19

Information recording medium having a wobbling groove structure

#27
20060227993
2006-10-12

Method and apparatus for determining if an optical disk originated from a valid source

#28
20060218412
2006-09-28

Encryption of data in a range of logical block addresses

#29
20060072448
2006-04-06

Information recording medium having a wobbling groove structure

#30
20060072447
2006-04-06

Information recording medium having a wobbling groove structure

#31
20060069651
2006-03-30

Method and apparatus for distributing multimedia programs

#32
20060064601
2006-03-23

Information carrier comprising access information and dummy information

#33
20050281178
2005-12-22

Information storage medium, recording and/or reproducing apparatus, and recording and/or reproducing method

#34
20050281167
2005-12-22

Recording medium, and method and apparatus for reformatting the same

#35
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

#36
20050259550
2005-11-24

Method and apparatus of accessing BCA data

#37
20050094516
2005-05-05

Information record medium and information writing/reading apparatus

#38
20050060570
2005-03-17

Data recorder, data player, playing program, and recording program

#39
20050025037
2005-02-03

Data media having variable control field in data units