H04N21/23895 - CPC Classification Index

ClassID:

230426 ⎘

H04N21/23895 - 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; Processing of content or additional data; Elementary server operations; Server middleware; Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams; Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex stream encryption

Sub-classes:

H04N21/23897 » {by partially encrypting, e.g. encrypting only the ending portion of a movie} 54

Recent Application in this class:

20240171798

2024-05-23

Systems and methods for adapting content items to secured endpoint media device data

20240146982

2024-05-02

DELIVERY OF ENCRYPTED MULTIPLEXES VIA HYPER TEXT TRANSFER PROTOCOL

20230388607

2023-11-30

MEDIA PACKAGING

20230096176

2023-03-30

Methods and systems for separate delivery of segments of content items

20220124396

2022-04-21

Systems and methods for adapting content items to secured endpoint media device data

20220103883

2022-03-31

Broadcast in-home streaming

20210385513

2021-12-09

DISTRIBUTED STORAGE OF CONTENT ACROSS STORAGE SUBSYSTEMS

20210344732

2021-11-04

Real time camera map for emergency video stream requisition service among peer-to-peer private servers

20210297749

2021-09-23

Smartphone-Based Conditional Access System

#10

20210227275

2021-07-22

Systems and methods for adapting content items to secured endpoint media device data

#11

20210227271

2021-07-22

Privacy-preserving video analytics

#12

20200374578

2020-11-26

Digital domain content processing and distribution apparatus and methods

#13

20200322657

2020-10-08

DELIVERY OF ENCRYPTED MULTIPLEXES VIA HYPER TEXT TRANSFER PROTOCOL

#14

20200153840

2020-05-14

SIGNALING SYSTEM SWITCHING AND KEY DERIVATION

#15

20190238917

2019-08-01

Digital domain content processing and distribution apparatus and methods

#16

20190124377

2019-04-25

Secure session-based video watermarking for online media streaming

#17

20190057194

2019-02-21

MULTIMEDIA NETWORK SYSTEM WITH CONTENT IMPORTATION, CONTENT EXPORTATION, AND INTEGRATED CONTENT MANAGEMENT

#18

20190014166

2019-01-10

Buffering in HTTP streaming client

#19

20180302674

2018-10-18

FILE GENERATING METHOD AND FILE GENERATING APPARATUS

#20

20180255029

2018-09-06

Method for transmitting encrypted packet in communication system

#21

20180242031

2018-08-23

Digital domain content processing and distribution apparatus and methods

#22

20180145988

2018-05-24

Signaling conditional access system switching and key derivation

#23

20180046783

2018-02-15

Multimedia network system with content importation, content exportation, and integrated content management

#24

20180041816

2018-02-08

Media packaging

#25

20170339439

2017-11-23

Method and device for processing multimedia file, and storage medium

#26

20170237796

2017-08-17

Embedded system for video processing with hardware means

#27

20170214969

2017-07-27

File generating method and file generating apparatus

#28

20170208372

2017-07-20

Systems and methods for securing content delivered using a playlist

#29

20170026673

2017-01-26

Constructing a transport stream

#30

20160309205

2016-10-20

SYSTEM AND METHOD FOR TRANSMITTING DIGITAL AUDIO STREAMS TO ATTENDEES AND RECORDING VIDEO AT PUBLIC EVENTS

#31

20160294795

2016-10-06

MULTIMEDIA NETWORK SYSTEM WITH CONTENT IMPORTATION, CONTENT EXPORTATION, AND INTEGRATED CONTENT MANAGEMENT

#32

20160241900

2016-08-18

DESCRAMBLING OF DATA ACCORDING TO THE PROPERTIES OF THE CONTROL WORDS

#33

20160171189

2016-06-16

Multimedia network system with content importation, content exportation, and integrated content management

#34

20160156968

2016-06-02

File generating method and file generating apparatus

#35

20160134917

2016-05-12

Digital domain content processing and distribution apparatus and methods

#36

20160094870

2016-03-31

MULTIMEDIA NETWORK SYSTEM WITH CONTENT IMPORTATION, CONTENT EXPORTATION, AND INTEGRATED CONTENT MANAGEMENT

#37

20160042157

2016-02-11

Multimedia network system with content importation, content exportation, and integrated content management

#38

20150373402

2015-12-24

Embedded system for video processing with hardware means

#39

20150373382

2015-12-24

Embedded system for video processing with hardware means

#40

20150350745

2015-12-03

Server, client apparatus, data distribution method, and data distribution system

#41

20150326901

2015-11-12

Delayed video-on-demand streaming for enhanced user experience and network capacity optimization

#42

20150281298

2015-10-01

Buffering in HTTP streaming client

#43

20150271450

2015-09-24

Method and system for collaborative recording and compression

#44

20150172601

2015-06-18

Method and system for collaborative recording and compression

#45

20150101002

2015-04-09

Signal processing apparatus, signal processing method, program, and signal transmission system

#46

20150082337

2015-03-19

PIPELINED ENCRYPTION AND PACKETIZATION OF AUDIO VIDEO DATA

#47

20140341377

2014-11-20

Smartcard encryption cycling

#48

20140281481

2014-09-18

DLNA/DTCP stream conversion for secure media playback

#49

20140259086

2014-09-11

Constructing a transport stream

#50

20140237504

2014-08-21

System and method for delivering satellite services at multiple security levels

#51

20140130094

2014-05-08

User interface

#52

20140093075

2014-04-03

Secure transmission method and apparatus for transport stream

#53

20140082656

2014-03-20

Descrambling apparatus and television system utilizing the same

#54

20130262694

2013-10-03

Buffering in HTTP streaming client

#55

20130166868

2013-06-27

Method and system for providing content to a recipient device

#56

20130064368

2013-03-14

Methods and devices for selective format-preserving data encryption

#57

20130055304

2013-02-28

User interface

#58

20130054972

2013-02-28

Systems and methods for securing content delivered using a playlist

#59

20120328099

2012-12-27

Anti-splitter violation conditional key change

#60

20120195425

2012-08-02

SECURITY VIDEO TRANSMISSION APPARATUS, VIDEO DATA RECEPTION APPARATUS, AND KEY GENERATION METHOD THEREOF

#61

20120183003

2012-07-19

Apparatus and method for providing compatibility of transmission signal in communication system

#62

20120106741

2012-05-03

Method for creating an enhanded data stream

#63

20120070128

2012-03-22

INFORMATION PROCESSOR, INFORMATION PROCESSING METHOD, AND PROGRAM

#64

20120060182

2012-03-08

Digital domain content processing and distribution apparatus and methods

#65

20120060034

2012-03-08

DIGITAL INFORMATION STREAM COMMUNICATION SYSTEM AND METHOD

#66

20120005715

2012-01-05

Apparatus and method for transmitting/receiving data in communication system

#67

20110311045

2011-12-22

Partial multiple encryption

#68

20110289522

2011-11-24

Method and system of building a wanted list queue for a user in a content distribution system

#69

20110268178

2011-11-03

Encoding video streams for adaptive video streaming

#70

20110158609

2011-06-30

Scrambling and descrambling method for the transport of MPEG2 audio video data streams

#71

20110023078

2011-01-27

Content receiver and content transmitter

#72

20100189424

2010-07-29

Apparatus and method for processing and reading a file having a media data container and a metadata container

#73

20100189257

2010-07-29

Lightweight streaming protection by sequence number scrambling

#74

20100189256

2010-07-29

Apparatus and method for storing and reading a file having a media data container and metadata container

#75

20100067704

2010-03-18

KEY MANAGEMENT SYSTEM

#76

20100067700

2010-03-18

Key management system

#77

20100027795

2010-02-04

Digital content distribution

#78

20100014594

2010-01-21

Splicing of encrypted video/audio content

#79

20090320058

2009-12-24

Multimedia Content Distribution System and Method for Multiple Dwelling Unit

#80

20090316896

2009-12-24

METHOD FOR MANAGING THE NUMBER OF VISUALIZATIONS, SECURITY PROCESSOR AND TERMINAL FOR SAID METHOD

#81

20090310780

2009-12-17

Broadcast receiving apparatus and broadcast receiving method

#82

20090225984

2009-09-10

System and method for delivering satellite services at multiple security levels

#83

20090208009

2009-08-20

Opportunistic use of keys during encryption/decryption

#84

20090199236

2009-08-06

Advertisement insertion

#85

20090187946

2009-07-23

Fast channel switching for encrypted mobile multimedia multicast system

#86

20090172722

2009-07-02

Service activation of set-top box functionality using broadcast conditional access system

#87

20090172196

2009-07-02

System and Method For Protecting Content Transferred Between Devices

#88

20090169002

2009-07-02

Decryption key management

#89

20090141888

2009-06-04

Method and apparatus for performing trick play on scrambled data stream

#90

20090132823

2009-05-21

Multimedia data protection

#91

20090100065

2009-04-16

Method and system for quickly recording linear content from an interactive interface

#92

20090041242

2009-02-12

Method, system, subscriber equipment and multi-media server for digital copyright protection

#93

20090010430

2009-01-08

Streaming system for distributing encrypted compressed image data, and streaming method therefor

#94

20080291999

2008-11-27

Method and apparatus for video frame marking

#95

20080279377

2008-11-13

METHOD AND SYSTEM FOR SCRAMBLING MEDIA DATA IN REAL TIME

#96

20080205643

2008-08-28

Method and apparatus for distribution and synchronization of cryptographic context information

#97

20080144820

2008-06-19

Digital broadcasting transmitting system for conditional access and method thereof, and digital broadcasting receiving terminal and method thereof

#98

20080086779

2008-04-10

System and method for digital rights management with license proxy

#99

20080075285

2008-03-27

Method and apparatus for delivering encrypted on-demand content without use of an application defined protocol

#100

20080031450

2008-02-07

Signal processor and signal processing method

#101

20080015999

2008-01-17

Securely ingesting encrypted content into content servers

#102

20080015932

2008-01-17

METHODS AND APPARATUS TO DISTRIBUTE MEDIA CONTENT

#103

20080013731

2008-01-17

Modified triple wrap encryption/decryption system

#104

20070204290

2007-08-30

Method for Protecting Contents of Broadband Video/Audio Broadcast

#105

20070201552

2007-08-30

Media data processing apparatus and media data processing method

#106

20070198414

2007-08-23

Method and system for selectively providing access to content

#107

20070183454

2007-08-09

System and method for digital multimedia broadcasting confinement service

#108

20070180235

2007-08-02

Encryption and decryption method for conditional access content

#109

20070172061

2007-07-26

Subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate

#110

20070143784

2007-06-21

Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device

#111

20070124645

2007-05-31

Data transmission method

#112

20070121941

2007-05-31

Method and system of transferring scrambled content

#113

20070112786

2007-05-17

System and method for wirelessly broadcasting content from a core for receipt by a mobile client

#114

20070058813

2007-03-15

Opportunistic use of null packets during encryption/decryption

#115

20070011447

2007-01-11

System for providing access to operation information

#116

20060280298

2006-12-14

Rotation of keys during encryption/decryption

#117

20060269067

2006-11-30

Opportunistic use of null packets during encryption/decryption

#118

20060269063

2006-11-30

Encryption system

#119

20060215785

2006-09-28

Simplified scrambling scheme for satellite broadcasting systems

#120

20060045361

2006-03-02

Encoding device, decoding device, encoding method, decoding method, and program therefor

#121

20060041903

2006-02-23

Service activation of set-top box functionality using broadcast conditional access system

#122

20050259821

2005-11-24

Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device

#123

20050246735

2005-11-03

Methods of broadcasting and reception of radio or television data, and also transmitter and receiver for implementing of these methods

#124

20050237434

2005-10-27

Content receiver and content transmitter

#125

20050232419

2005-10-20

Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device

#126

20050226417

2005-10-13

Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device

#127