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Class Information
Number: 380/201
Name: Cryptography > Video cryptography > Copy protection or prevention
Description: Subject matter which prevents rerecording of a stored picture signal representative of a time varying object or image.

Sub-classes under this class:

Class Number Class Name Patents
380/203 Having copy protect signal 561
380/202 Having origin or program id 384
380/204 Modifying sync signal 166

Patents under this class:
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Patent Number Title Of Patent Date Issued
7454018 Transfer of DVD decode key on a window by window basis to an attached device Nov. 18, 2008
7451490 Media data protection with secure installer Nov. 11, 2008
7451317 Apparatus for and method of embedding watermark into original information, transmitting watermarked information, and reconstructing the watermark Nov. 11, 2008
7451309 Signature specification for encrypted packet streams Nov. 11, 2008
7447315 System for determining successful reception of a message Nov. 4, 2008
7447313 Pointers to encrypted data in RTP header Nov. 4, 2008
7444064 Broadcast receiver, program recording method and program product Oct. 28, 2008
7441124 Recording apparatus and method Oct. 21, 2008
7437768 Information processing apparatus and method, and program storage medium Oct. 14, 2008
7436978 System and method for applying watermarks Oct. 14, 2008
7436960 Methods of use of ipmp data for mpeg-n ipmp (intellectual property management and protection) Oct. 14, 2008
7436959 Data recording apparatus and recording method Oct. 14, 2008
7436958 Method of distributed IPMP device messaging and carriage of rights in MPEG IPMP content Oct. 14, 2008
7434056 Watermark-based copy management system and method for digital media copy protection Oct. 7, 2008
7434055 Recording medium, recording method of recording medium, recording and/or reproducing method of recording medium, and data copy control method Oct. 7, 2008
7433471 MPEG-21 digital content protection system Oct. 7, 2008
7430294 Method and apparatus for the encryption of data Sep. 30, 2008
7428591 Content authorization system over networks including the Internet and method for transmitting same Sep. 23, 2008
7428307 Data reproduction apparatus capable of safely controlling reproduction time of encrypted content data and data reproduction circuit and data recording apparatus used for the same Sep. 23, 2008
7426751 Recording medium, information transmission method, terminal, server, and recording method Sep. 16, 2008
7424747 Method and system for detecting pirated content Sep. 9, 2008
7421579 Multiplexing a secure counter to implement second level secure counters Sep. 2, 2008
7421412 Computerized method and system for monitoring use of a licensed digital good Sep. 2, 2008
7421411 Digital rights management in a mobile communications environment Sep. 2, 2008
7412606 Copy protection using detailed copy control information Aug. 12, 2008
7409431 Server apparatus, communications method, program for making computer execute the communications method, and computer-readable storage medium containing the program Aug. 5, 2008
7409142 Receiving apparatus, receiving method, and supplying medium Aug. 5, 2008
7406593 Method and apparatus for protecting information and privacy Jul. 29, 2008
7406446 System and method for trustworthy metering and deactivation Jul. 29, 2008
7406177 Recording medium, recording method, recording apparatus, and reproduction method Jul. 29, 2008
7403616 Electronic apparatus, data recording method for the electronic apparatus, and storage medium storing program for executing the data recording method Jul. 22, 2008
7400729 Secure delivery of encrypted digital content Jul. 15, 2008
7400727 Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media Jul. 15, 2008
7400726 Apparatus for preventing unauthorized use of a copyrighted medium Jul. 15, 2008
7400725 Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein Jul. 15, 2008
7400465 Recording medium cartridge and recording/reproducing apparatus therefor Jul. 15, 2008
7398557 Accessing in a rights locker system for digital content access control Jul. 8, 2008
7398556 System and method for managing copyrighted electronic media Jul. 8, 2008
7398395 Using multiple watermarks to protect content material Jul. 8, 2008
7398008 Copy protection for analog video signals from computing devices Jul. 8, 2008
7397919 Access control method and storage apparatus Jul. 8, 2008
7395545 Method and apparatus for providing copy protection using a transmittal mode command Jul. 1, 2008
7395431 Data encryption method, recording medium, data transfer apparatus, and encrypted data decryption method Jul. 1, 2008
7393108 Imaging disturbing method and system Jul. 1, 2008
7391866 Broadcast apparatus and reception apparatus for providing a storage service by which scrambled content is stored and descrambled using scrambling key list Jun. 24, 2008
7391865 Secure data parser method and system Jun. 24, 2008
7389428 Data processing system, data processing method, and program providing medium Jun. 17, 2008
7389272 Information recording device and information reproducing device Jun. 17, 2008
7386515 Fee imposition system for application software Jun. 10, 2008
7386159 Magnetic watermark for text documents Jun. 10, 2008

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