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Browse by Category: Main > Information Technology
Class Information
Number: 380/241
Name: Cryptography > Video cryptography > Video electric signal modification (e.g., scrambling) > Including addressed decoder control signal > Having program id or authorization
Description: Subject matter wherein the addressed decoder signal includes a unique identifier for a particular video signal or access thereto.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8667598 Reproduction rule evaluation device, reproduction rule evaluation method, recording medium and program Mar. 4, 2014
8667294 Apparatus and method for preventing falsification of client screen Mar. 4, 2014
8650659 Method and apparatus for securing media asset distribution for a marketing process Feb. 11, 2014
8649517 Receiving method, terminal equipment and receiving device for mobile digital multimedia service Feb. 11, 2014
8649514 On-demand switched content encryption Feb. 11, 2014
8601601 Method and apparatus for controlling access restrictions for media playback Dec. 3, 2013
8577033 Method for partially encrypting program data Nov. 5, 2013
8578155 Address generating method and broadcast receiving apparatus Nov. 5, 2013
8548166 Method for partially encrypting program data Oct. 1, 2013
8549307 Forensic marking using a common customization function Oct. 1, 2013
8542830 Method for partially encrypting program data Sep. 24, 2013
8533849 Traitor tracing in a content protection system Sep. 10, 2013
8526613 Subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate Sep. 3, 2013
8510798 Authentication in an audio/visual system having multiple signaling paths Aug. 13, 2013
8452011 Method and apparatus for billing and security architecture for venue-cast services May. 28, 2013
8453235 Controlling access to mail transfer agents by clients May. 28, 2013
8447035 Contract based memory management for isochronous streams May. 21, 2013
8443420 System for communicating with a mobile device server May. 14, 2013
8424077 Simplified management of authentication credentials for unattended applications Apr. 16, 2013
8424061 Method, system and program product for authenticating a user seeking to perform an electronic service request Apr. 16, 2013
8401190 Portable security module pairing Mar. 19, 2013
8391483 Storage of digital data Mar. 5, 2013
8385728 Apparatus and method for searching start position of broadcasting program Feb. 26, 2013
8387150 Segmented media content rights management Feb. 26, 2013
8332950 Disc manufacturing method, data recording apparatus, information recording medium, information processing apparatus and method, and computer program Dec. 11, 2012
8271388 Image commercial transactions system and method, image transfer system and method, image distribution system and method, display device and method Sep. 18, 2012
8266679 Information processing apparatus and information processing system Sep. 11, 2012
8261097 Data recorder having data encryption function and data reproducing device Sep. 4, 2012
8255547 Method and apparatus for file sharing between a group of user devices with separately sent crucial portions and non-crucial portions Aug. 28, 2012
8245042 Shielding a sensitive file Aug. 14, 2012
8244884 Method and apparatus for file sharing between a group of user devices with crucial portions sent via satellite and non-crucial portions sent using a peer-to-peer network Aug. 14, 2012
8185742 Device and method for providing video stream having integrity May. 22, 2012
8181022 Method and apparatus for controlling access restrictions for media playback May. 15, 2012
8155316 Contract based memory management for isochronous streams Apr. 10, 2012
8151363 Approach for securely processing an electronic document Apr. 3, 2012
8117442 Data processor Feb. 14, 2012
8103001 Method for verifying rights contained in a security module Jan. 24, 2012
8098820 Conditional access system for broadcast digital television Jan. 17, 2012
8090104 Method of descrambling a scrambled content data object Jan. 3, 2012
8060938 Proprietary portable audio player system for protecting digital content copyrights Nov. 15, 2011
8055910 Reprogrammable security for controlling piracy and enabling interactive content Nov. 8, 2011
8051284 Encryption communications system Nov. 1, 2011
8037541 System, device and method for interoperability between different digital rights management systems Oct. 11, 2011
7992211 Method and device for authorising conditional access Aug. 2, 2011
7983417 System and method for dynamically allocating stream identifiers in a multi-encryption transport system Jul. 19, 2011
7961881 Apparatus and methods for including codes in audio signals Jun. 14, 2011
7962515 Logon access management and cross-reference Jun. 14, 2011
7937326 Document security protection analysis assistant May. 3, 2011
7933411 Method of constructing MPEG program streams from encrypted MPEG transport streams Apr. 26, 2011
7916867 Content receiving apparatus Mar. 29, 2011

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