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Class Information
Number: 705/57
Name: Data processing: financial, business practice, management, or cost/price determination > Business processing using cryptography > Usage protection of distributed data files > Copy protection or prevention
Description: Subject matter which prevents rerecording of a distributed data file.










Sub-classes under this class:

Class Number Class Name Patents
705/58 Having origin or program id 423


Patents under this class:
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Patent Number Title Of Patent Date Issued
7752433 Content-duplication management system, apparatus and method, playback apparatus and method, and computer program Jul. 6, 2010
7752138 Dynamic licensing in a distributed system Jul. 6, 2010
7748045 Method and system for providing cryptographic document retention with off-line access Jun. 29, 2010
7748044 System and method for processing DRM-enabled files Jun. 29, 2010
7747864 DVD identification and managed copy authorization Jun. 29, 2010
7747532 Content use management system, content playback apparatus, content use management method, content playback method, and computer program including system date/time information validation Jun. 29, 2010
7734550 Method and system for identifying the controlling license for installed software Jun. 8, 2010
7734047 Information recording medium, information processing device, information processing method, and computer program Jun. 8, 2010
7733530 Method and system for printing secure value documents and non-secure documents utilizing the same printing device Jun. 8, 2010
7730539 Authenticating third party products via a secure extensibility model Jun. 1, 2010
7729495 System and method for detecting unauthorized copying of encrypted data Jun. 1, 2010
7725401 Method and apparatus for establishing usage rights for digital content to be created in the future May. 25, 2010
7725399 Content usage device and network system, and license information acquisition method May. 25, 2010
7720768 Enhancing copyright revenue generation for a copyright protected frame-based work May. 18, 2010
7720766 Digital data selling and buying transaction system, auxiliary digital data selling and buying system, digital data selling and buying transaction method, auxiliary digital data selling and buy May. 18, 2010
7716291 Method and apparatus for a message targeting and filtering database system May. 11, 2010
7716137 System and method for automatically tracking and enabling the operation of a product May. 11, 2010
7711648 Method and apparatus for obtaining content license rights via a document link resolver May. 4, 2010
7707641 Method and apparatus for secure content delivery over broadband access networks Apr. 27, 2010
7707114 Enabling modification of control information, which controls the rights to content, where access to a key for decrypting the content requires a particular value that becomes modified when the Apr. 27, 2010
7706531 Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods Apr. 27, 2010
7703143 Information processing apparatus, image forming apparatus, and electronic data movement canceling method Apr. 20, 2010
7703113 Copy protection arrangement Apr. 20, 2010
7702592 Secure transfer of content to writable media Apr. 20, 2010
7702590 Trial access for media files from a media list Apr. 20, 2010
7702109 Content recording/reproducing system, distribution device, reproducing device, and recording device Apr. 20, 2010
7698743 Authentication server, method and system for detecting unauthorized terminal Apr. 13, 2010
7698664 Secure exchange of information in electronic design automation Apr. 13, 2010
7698223 Pluggable file-based digital rights management API layer for applications and engines Apr. 13, 2010
7689511 Method for providing measured values for end customers Mar. 30, 2010
7689510 Methods and system for use in network management of content Mar. 30, 2010
7685641 Copy-protected digital audio compact disc, and method and system for producing same Mar. 23, 2010
7685071 Mobile communication terminal Mar. 23, 2010
7685070 Method and system for using entertainment files as ring tones Mar. 23, 2010
7676437 Real-time license enforcement system and method Mar. 9, 2010
7676436 Digital content distribution systems and methods Mar. 9, 2010
7672905 Apparatus and method for rendering digital content Mar. 2, 2010
7668783 System and method for providing rental software, and rental software providing server and wireless terminal thereof Feb. 23, 2010
7665145 Apparatus and method for moving contents having a restricted number of copies between storage media Feb. 16, 2010
7665144 Apparatus and method for moving contents having a restricted number of copies between storage media Feb. 16, 2010
7664288 Digital watermarking method robust against local and global geometric distortions and projective transforms Feb. 16, 2010
RE41112 Recording and reproducing apparatus and terminal apparatus Feb. 9, 2010
7661144 Apparatus and method for moving contents having a restricted number of copies between storage media Feb. 9, 2010
7660769 System and method for digital content player with secure processing vault Feb. 9, 2010
7657847 Copy control information deciding apparatus Feb. 2, 2010
7653532 Content recording/reproducing apparatus, storage medium and computer program Jan. 26, 2010
7653206 Digital audio device Jan. 26, 2010
7650646 Information-recording apparatus, information reproduction apparatus, information-recording method, information reproduction method and computer program Jan. 19, 2010
7650312 Method and system to enable continuous monitoring of integrity and validity of a digital content Jan. 19, 2010
7650311 Read-only recording medium containing sample data and reproducing method thereof Jan. 19, 2010

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