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Your search returned 211 patents.
( 380/268 in Current US Classification )
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Patent IDTitleDate Filed
6909783 Alphabet soup cryptography July 24, 2003
6889325 Transaction method and system for data networks, like internet April 28, 2000
6888943 Multimedia adaptive scrambling system (MASS) October 19, 2000
6885747 Cryptographic key split combiner February 13, 1998
6853731 Digital video recorder employing a unique ID to interlock with encrypted video programs stored on a storage device September 30, 2000
6851063 Digital video recorder employing a file system encrypted using a pseudo-random sequence generated from a unique ID September 30, 2000
6848050 System and method for alternative encryption techniques April 15, 1999
6845159 Processing method and apparatus for converting information from a first format into a second format October 7, 1999
6839847 Information processing equipment and IC card November 29, 1999
6823457 Method and system for verifying control accesses between a device on a non-proprietary bus and a device on a proprietary bus November 22, 1999
6813716 Secure calling card and authentication process April 24, 2000
6792566 Method and apparatus of pre-loading a seed for a test code of a physical layer device March 23, 2001
6760442 Method and apparatus for adjusting the quality of digital media December 18, 1998
6754349 Cryptographic key, or other secret material, recovery June 1, 2000
6745231 System for securing electronic mail August 8, 2000
6744747 Method & apparatus for W-CDMA handoff searching August 22, 2001
6725374 Method for the execution of an encryption program for the encryption of data in a microprocessor-based portable data carrier August 20, 1999
6721423 Lost cost countermeasures against compromising electromagnetic computer emanations January 28, 1999
6697871 System and method for efficient encoding and decoding of protocol messages September 21, 1999
6643775 Use of code obfuscation to inhibit generation of non-use-restricted versions of copy protected software applications November 20, 1998
6577732 Hierarchical encryption technique for dense wavelength division multiplexed systems using a wavelength bus architecture February 16, 1999
6570990 Method of protecting high definition video signal November 13, 1998
6535687 Method and system for deterring electronic video piracy through image rearrangement June 12, 2000
6504931 Method and apparatus for encrypting data November 9, 2000
6496929 Generating RSA moduli including a predetermined portion April 12, 2002
6496583 Digital data transfer apparatus and method December 28, 1998
6487293 Method and apparatus for reproducing ciphered data September 14, 1998
6459794 Process for scrambling and process for descrambling digital video data and devices implementing the processes November 20, 1998
6452959 Method of and apparatus for generating data sequences for use in communications May 28, 1999
6445797 Method and system for performing secure electronic digital streaming December 16, 1998
6438693 Modular broadcast receiver system and memo September 28, 1998
6424953 Encrypting secrets in a file for an electronic micro-commerce system March 19, 1999
6421780 System for creating high and low speed non-algorithmic random numbers for encryption/decryption August 14, 2001
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