G11B20/00615 - CPC Classification Index

ClassID:

198726 ⎘

G11B20/00615 - 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 change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames

Sub-classes:

G11B20/00623 » {wherein the modification to the logical format directly concerns user data} 5
G11B20/0063 » {wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode} 38

Recent Application in this class:

20190279678

2019-09-12

Magnetic disk device configured to write parity data that is based on data being written to a parity sector when no error is detected in writing the data being written

20140149661

2014-05-29

Information carrier comprising access information

20120113788

2012-05-10

Information carrier comprising access information

20110107111

2011-05-05

Information carrier comprising access information and dummy information

20100284253

2010-11-11

Optical disc, playback apparatus for optical disc, and apparatus and method for manufacturing optical disc

20100129055

2010-05-27

CONTROLLED ACCESS DVD

20090285070

2009-11-19

COPY-PROTECTED OPTICAL STORAGE MEDIA AND METHOD FOR PRODUCING THE SAME

20080151740

2008-06-26

Method for data storage protection and encryption

20080077998

2008-03-27

Content storage apparatus, content storage method, storage medium, and program

#10

20070206732

2007-09-06

Information processing apparatus and method, program recording medium, and program

#11

20070101157

2007-05-03

Security in digital data distribution

#12

20060195875

2006-08-31

Method and equipment for distributing digital video products with a restriction of certain products in terms of the representation and reproduction rights thereof

#13