ClassID:

230455

H04N21/2585 - CPC Classification

Classification description:

Selective content distribution, e.g. interactive television or video on demand [VOD]; Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof; Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies; Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data; Management of client data Generation of a revocation list, e.g. of client devices involved in piracy acts

Recent Application in this class:
#1
20230345066
2023-10-26

System and method for preventing streaming infidelity

#2
20220417613
2022-12-29

Media data modification management system

#3
20210084387
2021-03-18

Device and Method for GPU-based Watermarking

#4
20200244717
2020-07-30

Location-based tagging and retrieving of media content

#5
20200092595
2020-03-19

System and method for identifying leaked data and assigning guilt to a suspected leaker

#6
20190386823
2019-12-19

Secure and disruption-tolerant communications for unmanned underwater vehicles

#7
20190141414
2019-05-09

Device and method for GPU-based watermarking

#8
20190109850
2019-04-11

Apparatus and methods for device authorization in a premises network

#9
20190103960
2019-04-04

Secure and disruption-tolerant communications for unmanned underwater vehicles

#10
20180213297
2018-07-26

Selectively delaying control word delivery for piracy identification

#11
20180020000
2018-01-18

System and method for providing fraud control

#12
20170359716
2017-12-14

Apparatus for managing members of at least one group of decoders having access to broadcast data

#13
20170230716
2017-08-10

Content reproduction method and device

#14
20160359843
2016-12-08

Distributed white list for security renewability

#15
20160191599
2016-06-30

Location-based tagging and retrieving of media content

#16
20150296374
2015-10-15

Apparatus for managing members of at least one group of decoders having access to broadcast data

#17
20150237385
2015-08-20

Topographic fraud detection

#18
20150189379
2015-07-02

Location profiling

#19
20150180873
2015-06-25

Controlling access to IP streaming content

#20
20150178480
2015-06-25

Recording medium device, terminal device, distribution device, control method, and program recording medium

#21
20140351897
2014-11-27

Apparatus and methods for device authorization in a premises network

#22
20140344870
2014-11-20

Media network environment

#23
20140331053
2014-11-06

Transmission method and system for terminal unique information

#24
20140325550
2014-10-30

REAL-TIME ANTI-PIRACY FOR BROADCAST STREAMS

#25
20140082650
2014-03-20

Topographic fraud detection

#26
20130308780
2013-11-21

Apparatus for managing members of at least one group of decoders having access to broadcast data

#27
20130232524
2013-09-05

SYSTEM AND METHOD FOR LEASING A TV

#28
20130212374
2013-08-15

Method for identifying a device used by a hacked terminal, and related device

#29
20130198787
2013-08-01

Broadcast area identification and content distribution

#30
20130174238
2013-07-04

Mechanism to determine source device service tier based on the version of the HDCP key

#31
20130061053
2013-03-07

Recording medium device, terminal device, distribution device, control method, and program recording medium

#32
20130016911
2013-01-17

METHOD FOR CLASSIFYING PROJECTION RECAPTURES

#33
20120324221
2012-12-20

Identification of a compromised content player

#34
20120321081
2012-12-20

Identification of a compromised content player

#35
20120281833
2012-11-08

Method to manage revocations in a group of terminals

#36
20120140083
2012-06-07

Receiving content and approving content for transmission

#37
20120047545
2012-02-23

Topographic fraud detection

#38
20120044073
2012-02-23

ELECTRONIC EQUIPMENT HAVING ANTITHEFT FUNCTION, AND EXTERNAL SERVER

#39
20120036578
2012-02-09

Tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption system

#40
20110231941
2011-09-22

License management in a media network environment

#41
20110208760
2011-08-25

METHOD FOR PROTECTING CONTENT AND METHOD FOR PROCESSING INFORMATION

#42
20110188655
2011-08-04

Method to manage members of at least one group of decoders having access to broadcast data

#43
20110145597
2011-06-16

Data exchange processing apparatus and data exchange processing method

#44
20110107436
2011-05-05

Apparatus and methods for device authorization in a premises network

#45
20110004893
2011-01-06

DEVICES AND TECHNIQUES FOR DETERMINING AND FACILITATING AUTHORIZED DISTRIBUTION OF MEDIA CONTENT

#46
20100313034
2010-12-09

INFORMATION PROCESSING APPARATUS, DATA RECORDING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM

#47
20100310068
2010-12-09

Method for monitoring execution of data processing program instructions in a security module

#48
20100251381
2010-09-30

SYSTEM RENEWABILITY MESSAGE PROVIDING METHOD AND SYSTEM RENEWABILITY MESSAGE USING METHOD AND APPARATUS THEREOF

#49
20100146265
2010-06-10

Method, apparatus and system for employing a content protection system

#50
20100131971
2010-05-27

ADDRESSING THEFT OF CABLE SERVICES AND BREACH OF CABLE SYSTEM AND SECURITY

#51
20100125867
2010-05-20

System and method for managing conditional access blackout events in a video data distribution system

#52
20100088508
2010-04-08

METHOD FOR PROTECTING CONTENT

#53
20100071016
2010-03-18

METHOD OF MEASURING A SIMILARITY DEGREE OF DIGITAL VIDEO CONTENTS, METHOD OF MANAGING VIDEO CONTENTS USING THE SAME AND MANAGEMENT SYSTEM FOR VIDEO CONTENTS USING THE METHOD OF MANAGING VIDEO CONTENTS

#54
20100043081
2010-02-18

Detecting and revoking pirate redistribution of content

#55
20100020968
2010-01-28

Protection scheme for AACS keys

#56
20100005172
2010-01-07

Network management in a media network environment

#57
20090310780
2009-12-17

Broadcast receiving apparatus and broadcast receiving method

#58
20090304185
2009-12-10

Method of tracing device keys for broadcast encryption

#59
20090296000
2009-12-03

Systems, methods and apparatus for exchanging data between television receivers over a wireless communication link

#60
20090259844
2009-10-15

Content providing system, user system, tracing system, apparatus, method and program

#61
20090208010
2009-08-20

System for traceable decryption of bandwidth-efficient broadcast of encrypted messages and security module revocation method used for securing broadcasted messages

#62
20090144832
2009-06-04

METHOD FOR PROTECTING CONTENT AND METHOD FOR PROCESSING INFORMATION

#63
20090136031
2009-05-28

METHOD FOR PROTECTING CONTENT AND METHOD FOR PROCESSING INFORMATION

#64
20090097648
2009-04-16

CONTENT SERVICE PROVIDING METHOD AND AUTHENTICATION METHOD BETWEEN DEVICES USING BROADCAST ENCRYPTION, DISPLAY DEVICE, AND RESOURCE-CONSTRAINED DEVICE

#65
20090049189
2009-02-19

Methods and apparatus for supporting transmission of streaming data

#66
20090038007
2009-02-05

METHOD AND APPARATUS FOR MANAGING CLIENT REVOCATION LIST

#67
20090031144
2009-01-29

REVOCATION MESSAGE CYCLING IN A DIGITAL TRANSMISSION CONTENT PROTECTION SYSTEM

#68
20090019468
2009-01-15

Access control of media services over an open network

#69
20080199007
2008-08-21

Identification of a compromised content player

#70
20080155700
2008-06-26

Contents distribution system

#71
20080127312
2008-05-29

Audio-video output apparatus, authentication processing method, and audio-video processing system

#72
20080120652
2008-05-22

Separation of content types on a portable media player device

#73
20080118231
2008-05-22

Method and system for providing content to a portable media player device and maintaining licensing rights

#74
20080072077
2008-03-20

Notification of Revocation in a Device Offering Secure Playback of Content

#75
20080046731
2008-02-21

CONTENT PROTECTION SYSTEM

#76
20080044019
2008-02-21

Security module revocation method used for securing broadcasted messages

#77
20080040282
2008-02-14

Content Use System

#78
20080037778
2008-02-14

SYSTEM, METHOD AND APPARATUS FOR PROVIDING CIPHERED AND DECIPHERED CONTENTS TO USER, AND RELATED COMPUTER READABLE MEDIUM

#79
20080016349
2008-01-17

Hidden identification

#80
20070294526
2007-12-20

Method and apparatus for delivering certificate revocation lists

#81
20070280476
2007-12-06

SYSTEM and METHOD FOR PROVIDING CIPHERED AND DECIPHERED CONTENTS TO USER, AND RELATED COMPUTER READABLE MEDIUM

#82
20070180231
2007-08-02

Preventing entitlement management message (EMM) filter attacks

#83
20070174609
2007-07-26

Apparatus and method for determining revocation key, and apparatus and method for decrypting contents using the same

#84
20070165853
2007-07-19

Tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption system

#85
20070112685
2007-05-17

Contents distribution system, recording apparatus, signature apparatus, contents supply apparatus, and contents playback apparatus

#86
20070098170
2007-05-03

Digital broadcasting conditional access system and method using authorization revocation list

#87
20070061875
2007-03-15

Verification method of a target device connected to a master device

#88
20070033394
2007-02-08

System for identification and revocation of audiovisual titles and replicators

#89
20070011735
2007-01-11

Open standard conditional access system

#90
20060293895
2006-12-28

Information processing apparatus capable of receiving digital broadcast program data, and method of protecting contents which is applied to the apparatus

#91
20060282898
2006-12-14

Copyright protection system, key generation apparatus, recording apparatus, reproduction apparatus, read-out apparatus, decryption apparatus, recording medium, recording method and program

#92
20060282864
2006-12-14

File format method and apparatus for use in digital distribution system

#93
20060271492
2006-11-30

Method and apparatus for implementing revocation in broadcast networks

#94
20060218607
2006-09-28

System and method for trick play of highly compressed video data

#95
20060177066
2006-08-10

Key management method using hierarchical node topology, and method of registering and deregistering user using the same

#96
20060171391
2006-08-03

Revocation information transmission method, reception method, and device thereof

#97
20060161976
2006-07-20

Embedded blacklisting for digital broadcast system security

#98
20060155861
2006-07-13

Communication system and method between a recording and/or reproducing device and a remote unit

#99
20060129805
2006-06-15

Method of managing user key for broadcast encryption

#100
20060111144
2006-05-25

Communication apparatus and communication method

#101
20060095935
2006-05-04

Method for receiving digital broadcast signal

#102
20060053494
2006-03-09

Embedded revocation messaging

#103
20060046640
2006-03-02

Broadcasting receiving apparatus, broadcasting receiving method, and broadcasting receiving system

#104
20050273822
2005-12-08

Video-on-demand satellite system

#105
20050238170
2005-10-27

Method for securing a ciphered content transmitted by a broadcaster

#106
20050210014
2005-09-22

Information-processing method, decryption method, information-processing apparatus and computer program

#107
20050198693
2005-09-08

Apparatus and method for reporting operation state of digital rights management

#108
20050169481
2005-08-04

Method of assigning user keys for broadcast encryption

#109
20050157878
2005-07-21

Content providing system, user system, tracing system, apparatus, method, and program

#110
20050123135
2005-06-09

Secure video system for display adaptor

#111
20050078944
2005-04-14

Method and system for controlling video media

#112
20050024543
2005-02-03

Robust reception of digital broadcast transmission

#113
20050021942
2005-01-27

Process for updating a revocation list of noncompliant keys appliances or modules in a secure system for broadcasting content

#114
16559906
2020-05-05

Ad media management system

#115
14036635
2015-08-04

Smart television data sharing to provide security