G11B20/00818 - CPC Classification Index

ClassID:

198754 ⎘

G11B20/00818 - 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 a digital rights management system for enforcing a usage restriction wherein the usage restriction limits the signal quality, e.g. by low-pass filtering of audio signals or by reducing the resolution of video signals

Sub-classes:

G11B20/00826 » {wherein a spoiler signal is added to degrade the signal quality} 40

Recent Application in this class:

20190230316

2019-07-25

Playback method and playback device

20190028272

2019-01-24

System and methods for permitting open access to data objects and for securing data within the data objects

20180139406

2018-05-17

Playback method and playback device

20170294206

2017-10-12

System and methods for permitting open access to data objects and for securing data within the data objects

20170235927

2017-08-17

Method and system for controlling media conveyance by a device to a user based on current location of the device

20160150180

2016-05-26

Playback method and playback device

20160149701

2016-05-26

System and methods for permitting open access to data objects and for securing data within the data objects

20150054646

2015-02-26

Vehicle-mounted electronic device

20140303840

2014-10-09

Intelligent power and control policy for automotive applications

#10

20140241524

2014-08-28

System and methods for permitting open access to data objects and for securing data within the data objects

#11

20140121898

2014-05-01

Intelligent power and control policy for automotive applications

#12

20130042114

2013-02-14

Information processing device and information processing method, and program

#13

20120300928

2012-11-29

System and methods for permitting open access to data objects and for securing data within the data objects

#14

20120201516

2012-08-09

Picture control device and method of the same

#15

20120099410

2012-04-26

System and method for providing content in two formats on one DRM disk

#16

20110264923

2011-10-27

Method and system for secure access to non-volatile memory

#17

20110255690

2011-10-20

Reprogrammable security for controlling piracy and enabling interactive content

#18

20110249543

2011-10-13

Information processing apparatus, information processing system, information processing method, and program

#19

20110196681

2011-08-11

Transmission system

#20

20110157470

2011-06-30

RECEIVER, RECEIVING METHOD AND OUTPUT CONTROL METHOD

#21

20110026709

2011-02-03

System and methods for permitting open access to data objects and for securing data within the data objects

#22

20110019516

2011-01-27

System and method for providing content in two formats on one DRM disk

#23

20090317057

2009-12-24

APPARATUS AND METHOD FOR SELECTIVELY OUTPUTTING HD/SD SIGNALS AS HIGH DEFINITION VIDEO ACCORDING TO COPY PROTECTION

#24

20090263102

2009-10-22

Video Content Reproducing Apparatus and Video Content Reproducing Method

#25

20090259852

2009-10-15

Reliable storage medium access control method and device

#26

20090190754

2009-07-30

System and methods for permitting open access to data objects and for securing data within the data objects

#27

20080260161

2008-10-23

Terminal Device and Copyright Protection System

#28

20080240442

2008-10-02

Managing copy protecting information of encrypted data

#29

20080232770

2008-09-25

METHOD FOR ACTIVATING VIDEO-AUDIO DATA IN AN OPTICAL DISC AND RELATED SYSTEM

#30

20080222180

2008-09-11

Recording medium containing sample data and reproducing thereof

#31

20080137848

2008-06-12

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

#32

20080133938

2008-06-05

Self-protecting digital content

#33

20080130886

2008-06-05

Content security layer providing long-term renewable security

#34

20080101604

2008-05-01

Self-protecting digital content

#35

20080080833

2008-04-03

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#36

20080069204

2008-03-20

Picture control device and method of the same

#37

20080063380

2008-03-13

Recording/reproduction device

#38

20080056685

2008-03-06

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#39

20080056410

2008-03-06

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#40

20080056409

2008-03-06

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#41

20080049935

2008-02-28

Interpreter using cryptographic values of a playback device's keys to authorize the playback device

#42

20080037948

2008-02-14

Recording medium, reproduction device, program, and reproduction method

#43

20080037781

2008-02-14

Content security layer providing long-term renewable security

#44

20080013427

2008-01-17

Data recording medium, data playback apparatus and method, data copy recording apparatus and method, and data output apparatus and method

#45

20070195685

2007-08-23

System and method for providing content in two formats on one DRM disk

#46

20070154187

2007-07-05

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#47

20070154186

2007-07-05

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#48

20070142943

2007-06-21

Digital security system

#49

20070110240

2007-05-17

Systems and methods for permitting open access to data objects and for securing data within the data objects

#50

20070086033

2007-04-19

Media distribution methods and systems with quality degradation

#51

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

#52

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

#53

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

#54

20070058450

2007-03-15

Limited use data storing device

#55

20070033419

2007-02-08

Reprogrammable security for controlling piracy and enabling interactive content

#56

20070002713

2007-01-04

Optical disc device

#57

20060294010

2006-12-28

Read-only recording medium containing sample data and reproducing method thereof

#58

20060294009

2006-12-28

Read-only recording medium containing sample data and reproducing method thereof

#59

20060291651

2006-12-28

Method for converting non copy protected data into copy protected data

#60

20060274165

2006-12-07

Conditional alteration of a saved image

#61

20060262710

2006-11-23

Recording medium, and method and apparatus for reproducing data from the recording medium

#62

20060239302

2006-10-26

Transmission system with apparatus for transmitting and receiving audio data auxiliary data

#63

20060188012

2006-08-24

Data encoding apparatus, data encoding method, data output apparatus, data output method, signal processing system, signal processing apparatus, signal processing method, data decoding apparatus, and data decoding method

#64

20060087950

2006-04-27

Reliable storage medium access control method and device

#65

20060002260

2006-01-05

Information recording device

#66

20050254364

2005-11-17

Information generation device, information reproduction device, and information recording device

#67

20050220323

2005-10-06

Image processing apparatus and method for processing image having hierarchical structure

#68

20050207729

2005-09-22

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#69

20050201722

2005-09-15

Method and apparatus for transmitting information, and reproducing apparatus, receiving apparatus and recording medium for the information, and transmission data thereof

#70

20050158014

2005-07-21

Method and apparatus for recording video data, and method and apparatus for reproducing video data

#71

20050102184

2005-05-12

Content playback method, content playback apparatus, and content distribution method

#72

20050097129

2005-05-05

Information processing apparatus, transmission apparatus, and recording medium

#73

20050089164

2005-04-28

System and method for the production and distribution of copy-protected and use-protected electronic audio and visual media and the data contents thereof

#74

20050010791

2005-01-13

System and method for playback of copying-and-use-protected acoustic and image media

#75

20050010790

2005-01-13

Cryptographic module for the storage and playback of copy-protected electronic tone and image media which is protected in terms of use

#76

20050010611

2005-01-13

Multimedia storage device having digital write-only area

#77

20050005143

2005-01-06

System and method for the copy-protected and use-protected coding and decoding transmission and storage of electronic audio and visual media