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Class Information
Number: 380/210
Name: Cryptography > Video cryptography > Video electric signal modification (e.g., scrambling)
Description: Subject matter wherein a video electric signal is made unintelligible by varying at least one of its parameters.










Sub-classes under this class:

Class Number Class Name Patents
380/221 By modifying synchronizing signal 93
380/220 Carrier frequency conversion 40
380/219 Carrier phase shift 26
380/213 Chrominance scrambling 59
380/239 Encrypted code control signal 483
380/216 Image data converted to digital before modification 138
380/240 Including addressed decoder control signal 230
380/211 Interactive tv 173
380/236 Modifying accompanying audio signal 95
380/214 Nonstandard scan pattern of video information 55
380/235 Phase inversion of scan line information 46
380/212 Plural video stream multiplexing 212
380/227 Record or coin controlled 145
380/231 Usage or charge determination 238
380/218 Variable time delay modulation of baseband video signal 58


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8713685 PC secure video path Apr. 29, 2014
8687807 Cascading dynamic crypto periods Apr. 1, 2014
8681872 Video encoding method, and video decoding method Mar. 25, 2014
8681979 Conditional access system and method for prevention of replay attacks Mar. 25, 2014
8675874 Apparatus for performing data compression processing using algebraic torus Mar. 18, 2014
8666079 Decoding and encoding data Mar. 4, 2014
8666071 System and method for delivering satellite services at multiple security levels Mar. 4, 2014
8667300 Image processing apparatus and method Mar. 4, 2014
8656423 Video distribution system Feb. 18, 2014
8649516 Digital video protection for authenticity verification Feb. 11, 2014
8644504 Method, apparatus, and system for deciphering media content stream Feb. 4, 2014
8644505 Remote entitlement processing module integration processing device and method Feb. 4, 2014
8646097 Security module for audio/video data processing unit Feb. 4, 2014
8638931 Signal descrambling detector Jan. 28, 2014
8635644 Signal processing apparatus and methods Jan. 21, 2014
8634555 Information processing apparatus, information processing method, and program Jan. 21, 2014
8634554 Method to enforce by a management center the access rules for a broadcast product Jan. 21, 2014
8634552 System and method for using a streaming protocol Jan. 21, 2014
8625791 Methods and apparatuses for selective data encryption Jan. 7, 2014
8610827 Direct IPTV distribution Dec. 17, 2013
8611689 Three-dimensional wavelet based video fingerprinting Dec. 17, 2013
8601528 Signal processing apparatus and methods Dec. 3, 2013
8584162 Signal processing apparatus and methods Nov. 12, 2013
8582759 Method and apparatus for providing content service Nov. 12, 2013
8578155 Address generating method and broadcast receiving apparatus Nov. 5, 2013
8578505 Method for controlling the use of a conditional access content and multimedia unit for implementing said method Nov. 5, 2013
8572693 Reception apparatus Oct. 29, 2013
8572200 Master/slave decision device and master/slave decision method applied to network device Oct. 29, 2013
8571993 Reprogrammable security for controlling piracy and enabling interactive content Oct. 29, 2013
8571213 Security method for preventing the unauthorized use of multimedia contents Oct. 29, 2013
8565426 System and method for copy protection for digital signals Oct. 22, 2013
8565428 Network device and network connecting method for building up network connection via high definition multimedia interface Oct. 22, 2013
8566868 Signal processing apparatus and methods Oct. 22, 2013
8559764 Editing an image representation of a text Oct. 15, 2013
8553882 Methods and apparatus for connecting a cable network to other network and/or devices Oct. 8, 2013
8543804 Adaptive security policy based scalable video service apparatus and method Sep. 24, 2013
8543724 Methods and apparatuses for a projected PVR experience Sep. 24, 2013
8538066 Asymmetric watermark embedding/extraction Sep. 17, 2013
8533473 Method and apparatus for reducing bandwidth usage in secure transactions Sep. 10, 2013
8526612 Selective and persistent application level encryption for video provided to a client Sep. 3, 2013
8515065 Video input device and video display system Aug. 20, 2013
8510654 Techniques for shuffling video information Aug. 13, 2013
8509434 Method and apparatus for protecting scalable video coding contents Aug. 13, 2013
8503675 Cable television secure communication system for one way restricted Aug. 6, 2013
8498412 Method of providing an encrypted data stream Jul. 30, 2013
8494159 System and practice for surveillance privacy-protection certification and registration Jul. 23, 2013
8494160 Method and apparatus for decrypting encrypted content Jul. 23, 2013
8494161 Content protection message extraction Jul. 23, 2013
8488837 Apparatus and method for generating constructively multi-patterned watermark, and apparatus and method for inserting and detecting the watermark using the same Jul. 16, 2013
8488788 Method for simulcrypting scrambled data to a plurality of conditional access devices Jul. 16, 2013

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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