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Class Information
Number: 380/36
Name: Cryptography > Communication system using cryptography > Time segment interchange
Description: Subject matter which divides the message signal into time interval segments the order of which are interchanged.

Sub-classes under this class:

Class Number Class Name Patents
380/37 Block/data stream enciphering 732

Patents under this class:
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Patent Number Title Of Patent Date Issued
8553880 Pseudorandom number generating system, encryption system, and decryption system Oct. 8, 2013
8520843 Method and apparatus for encrypting a discrete signal, and method and apparatus for decrypting Aug. 27, 2013
8509428 High-speed pipelined ARIA encryption apparatus Aug. 13, 2013
8503679 Short message encryption Aug. 6, 2013
8442220 Transmission apparatus and transmission method May. 14, 2013
8417934 Method and apparatus for integrating precise time protocol and media access control security in network elements Apr. 9, 2013
8295483 Mobile terminal device, wireless communication unit, wireless communication system, and wireless communication method Oct. 23, 2012
8230462 Fast channel switching for encrypted mobile multimedia multicast system Jul. 24, 2012
8218767 Security system and method for use in network Jul. 10, 2012
8121287 System, method, and service for performing unified broadcast encryption and traitor tracing for digital content Feb. 21, 2012
8015416 Memory information protection system and methods Sep. 6, 2011
8005209 Invariance based concurrent error detection for the advanced encryption standard Aug. 23, 2011
7953221 Method for processing multiple operations May. 31, 2011
7801297 Communication device and communication control method Sep. 21, 2010
7787621 Secure transmission using adaptive transformation and plural channels Aug. 31, 2010
7688972 Method and system for implementing FO function in KASUMI algorithm for accelerating cryptography in GSM (global system for mobile communication)GPRS (general packet radio service)edge(enhanced Mar. 30, 2010
7688974 Rijndael block cipher apparatus and encryption/decryption method thereof Mar. 30, 2010
7630492 Secure audio stream scramble system Dec. 8, 2009
7613298 System and process for adaptive and progressive scrambling of video streams Nov. 3, 2009
7602908 System and method for using a streaming protocol Oct. 13, 2009
7502463 Methods and apparatus for implementing a cryptography engine Mar. 10, 2009
7298840 Method and system for data integrity protection Nov. 20, 2007
7260217 Speculative execution for data ciphering operations Aug. 21, 2007
7246235 Time varying presentation of items based on a key hash Jul. 17, 2007
7209556 Encryption apparatus and method, and decryption apparatus and method based on block encryption Apr. 24, 2007
7155011 Encryption method, decryption method, and recording and reproducing apparatus Dec. 26, 2006
7142671 Methods and apparatus for implementing a cryptography engine Nov. 28, 2006
7124442 System and method for insertion and retrieval of microthreads in transmitted data Oct. 17, 2006
7076060 Cipher Jul. 11, 2006
7062651 Network printer registration protocol Jun. 13, 2006
7058178 Synchronous stream cipher Jun. 6, 2006
7051203 Data watermarks created by using an uneven sampling period May. 23, 2006
6970561 Encryption and decryption with endurance to cryptanalysis Nov. 29, 2005
6873707 Hardware-based encryption/decryption employing cycle stealing Mar. 29, 2005
6393126 System and methods for generating trusted and authenticatable time stamps for electronic documents May. 21, 2002
6320965 Secure watermark method and apparatus for digital signals Nov. 20, 2001
6249583 On-line signal processing method Jun. 19, 2001
6182214 Exchanging a secret over an unreliable network Jan. 30, 2001
6072873 Digital video broadcasting Jun. 6, 2000
6032258 Apparatus and methods for transmission security in a computer network Feb. 29, 2000
5999566 Method and apparatus for providing error-tolerant communication of information Dec. 7, 1999
5933431 Frame-based modulus interleaver Aug. 3, 1999
5892775 Method and apparatus for providing error-tolerant storage of information Apr. 6, 1999
5892899 Tamper resistant methods and apparatus Apr. 6, 1999
5818934 Method and apparatus for providing a cryptographically secure interface between the decryption engine and the system decoder of a digital television receiver Oct. 6, 1998
5535275 Apparatus and method for producing scrambled digital video signals Jul. 9, 1996
5335275 Television scrambler Aug. 2, 1994
5303302 Network packet receiver with buffer logic for reassembling interleaved data packets Apr. 12, 1994
5253296 System for resisting interception of information Oct. 12, 1993
5208857 Method and device for scrambling-unscrambling digital image data May. 4, 1993

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