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Browse by Category: Main > Information Technology
Class Information
Number: 380/216
Name: Cryptography > Video cryptography > Video electric signal modification (e.g., scrambling) > Image data converted to digital before modification
Description: Subject matter wherein a baseband video signal is digitized prior to signal modification.










Sub-classes under this class:

Class Number Class Name Patents
380/217 Having compression (e.g., mpeg) 299


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8582642 Transmitting system and receiving system for processing stream, and stream processing methods thereof Nov. 12, 2013
8565425 Recording medium, method for manufacturing the same and apparatus for reproducing the same Oct. 22, 2013
8526613 Subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate Sep. 3, 2013
8515065 Video input device and video display system Aug. 20, 2013
8396216 Partial dual-encryption using program map tables Mar. 12, 2013
8374348 Device for secure transmission recording and visualisation of audiovisual programmes Feb. 12, 2013
8365307 Method and apparatus for storing copy protection information separately from protected content Jan. 29, 2013
8325919 Streaming system for distributing encrypted compressed image data, and streaming method therefor Dec. 4, 2012
8325918 Streaming system for distributing encrypted compressed image data, and streaming method therefor Dec. 4, 2012
8306393 Information recording apparatus, information copying system, method for copying information, program and computer readable recording medium Nov. 6, 2012
8189664 Methods for encrypting and compressing video May. 29, 2012
8155315 Apparatus for and a method of downloading media content Apr. 10, 2012
8055901 Optical signature to enable image correction Nov. 8, 2011
7995246 Detecting printed image copies using phase-space-encoded fragile watermark Aug. 9, 2011
7929698 Selective encryption to enable trick play with enhanced security Apr. 19, 2011
7802101 System and method of retrieving a watermark within a signal Sep. 21, 2010
7792294 Selective encryption encoding Sep. 7, 2010
7784103 Method and apparatus for storing copy protection information separately from protected content Aug. 24, 2010
7697686 Unit for managing audio/video data and access control method for said data Apr. 13, 2010
7693278 Data distribution apparatus and data communications system Apr. 6, 2010
7688978 Scene change detection Mar. 30, 2010
7672373 Digital watermarking of a media stream using coded macroblock types Mar. 2, 2010
7660416 System and method for media content collaboration throughout a media production process Feb. 9, 2010
7590241 Receiver and receiving method Sep. 15, 2009
7577252 Method for secure object detection in images Aug. 18, 2009
7529941 System and method of retrieving a watermark within a signal May. 5, 2009
7496198 Partial dual encrypted stream utilizing program map tables Feb. 24, 2009
7466822 Data coding Dec. 16, 2008
7463736 Data process apparatus and method therefor Dec. 9, 2008
7398395 Using multiple watermarks to protect content material Jul. 8, 2008
7337328 Secure video card methods and systems Feb. 26, 2008
7337329 Secure video card methods and systems Feb. 26, 2008
7319755 Image altering apparatus and method for providing confidential viewing of a fundamental display image Jan. 15, 2008
7305088 Video distribution playback method, apparatus to be disposed on video distribution end, apparatus to be disposed on video playback end, computer readable medium, and movie distribution method Dec. 4, 2007
7302573 Computer system and method for controlling output of reproduced video data Nov. 27, 2007
7302586 Secure video card methods and systems Nov. 27, 2007
7299365 Secure video card methods and systems Nov. 20, 2007
7231528 Method of editing/restoring electronic information Jun. 12, 2007
7225385 Optical recording method May. 29, 2007
7221761 Error resilient digital video scrambling May. 22, 2007
7212630 Method and apparatus for encryption using partial information May. 1, 2007
7176791 Security verification method and device Feb. 13, 2007
7162745 Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client Jan. 9, 2007
7146506 Digital video display system Dec. 5, 2006
7080410 Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client Jul. 18, 2006
7065213 In a subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate Jun. 20, 2006
7062047 Signal reproducing/recording/transmitting method and apparatus and signal recording medium Jun. 13, 2006
7058697 Internet linking from image content Jun. 6, 2006
7055038 Method and apparatus for maintaining secure and nonsecure data in a shared memory system May. 30, 2006
7028184 Technique for digitally notarizing a collection of data streams Apr. 11, 2006

1 2 3










 
 
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