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Class Information
Number: 380/268
Name: Cryptography > Communication system using cryptography > Pseudo-random sequence scrambling
Description: Subject matter wherein modification of a digital data signal is affected to randomly distribute consecutive appearance of ones and zeros.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7403574 |
Simplified scrambling scheme for satellite broadcasting systems |
Jul. 22, 2008 |
| 7392450 |
Method and apparatus of compensating for signal receiving error at receiver in packet-based communication system |
Jun. 24, 2008 |
| 7376243 |
Apparatus and method for watermarking a digital image |
May. 20, 2008 |
| RE40334 |
Method and apparatus for encrypted data stream transmission |
May. 20, 2008 |
| 7366302 |
Apparatus and method for an iterative cryptographic block |
Apr. 29, 2008 |
| 7362867 |
Apparatus and method for generating scrambling code in UMTS mobile communication system |
Apr. 22, 2008 |
| 7362864 |
Framing of transmit encoded data and linear feedback shifting |
Apr. 22, 2008 |
| 7352862 |
Encryption method, communication system, transmission device, and data input device |
Apr. 1, 2008 |
| 7340059 |
Programmable scrambler and De-scrambler for digital telephony equipment |
Mar. 4, 2008 |
| 7333614 |
System and method for encypting spread spectrum carrier |
Feb. 19, 2008 |
| 7321666 |
Multilayered digital watermarking system |
Jan. 22, 2008 |
| 7319712 |
Orthogonal code generation apparatus, scrambling code generation apparatus and portable radio terminal using such apparatus |
Jan. 15, 2008 |
| 7308104 |
Forward multiple scrambling code generating method and apparatus |
Dec. 11, 2007 |
| 7302565 |
Terminal identity masking in a wireless network |
Nov. 27, 2007 |
| 7280659 |
Pseudorandom number generating apparatus or encryption or decryption apparatus using the same |
Oct. 9, 2007 |
| 7277543 |
Cryptographic combiner using two sequential non-associative operations |
Oct. 2, 2007 |
| 7269742 |
Microprocessor configuration with encryption |
Sep. 11, 2007 |
| 7266685 |
Time certification in a wireless communications network |
Sep. 4, 2007 |
| 7260223 |
Data transfer system |
Aug. 21, 2007 |
| 7257655 |
Embedded PCI-Express implementation |
Aug. 14, 2007 |
| 7248696 |
Dynamic system bus encryption using improved differential transitional encoding |
Jul. 24, 2007 |
| 7248698 |
System for generating pseudorandom sequences |
Jul. 24, 2007 |
| 7248699 |
Encryption method using synchronized continuously calculated pseudo-random key |
Jul. 24, 2007 |
| 7236594 |
Random generator description |
Jun. 26, 2007 |
| 7231044 |
Method and apparatus for real-time digital certification of electronic files and transactions using entropy factors |
Jun. 12, 2007 |
| 7227956 |
Simple encrypted transmission system suitable for intermittent signals |
Jun. 5, 2007 |
| 7227949 |
Separate self-synchronizing packet-based scrambler having replay variation |
Jun. 5, 2007 |
| 7224796 |
Pseudorandom number generating apparatus or encryption or decryption apparatus using the same |
May. 29, 2007 |
| 7221762 |
Authenticated ID-based cryptosystem with no key escrow |
May. 22, 2007 |
| 7215769 |
Non-autonomous dynamical orbit cryptography |
May. 8, 2007 |
| 7212634 |
Data distribution |
May. 1, 2007 |
| 7210166 |
Method and system for secure, one-time password override during password-protected system boot |
Apr. 24, 2007 |
| 7206945 |
Parallel distributed sample descrambling apparatus of passive optical network and method thereof |
Apr. 17, 2007 |
| 7200233 |
System and method for fast data encryption/decryption using time slot numbering |
Apr. 3, 2007 |
| 7191345 |
BIOS lock encode/decode driver |
Mar. 13, 2007 |
| 7188361 |
Method of transmitting signals |
Mar. 6, 2007 |
| 7178168 |
Shift device and method for shifting |
Feb. 13, 2007 |
| 7178036 |
Method and system for providing copy-protection on a storage medium and storage medium for use in such a system |
Feb. 13, 2007 |
| 7177426 |
Electronic file protection using location |
Feb. 13, 2007 |
| 7177424 |
Cryptographic apparatus and method |
Feb. 13, 2007 |
| 7174013 |
Efficient universal hashing method |
Feb. 6, 2007 |
| 7170997 |
Method of generating pseudo-random numbers in an electronic device, and a method of encrypting and decrypting electronic data |
Jan. 30, 2007 |
| 7155016 |
Communication device and method for using non-self-synchronizing scrambling in a communication system |
Dec. 26, 2006 |
| 7155015 |
Optical disk apparatus and data randomizing method using for optical disk apparatus |
Dec. 26, 2006 |
| 7149308 |
Cryptographic communications using in situ generated cryptographic keys for conditional access |
Dec. 12, 2006 |
| 7142670 |
Space-efficient, side-channel attack resistant table lookups |
Nov. 28, 2006 |
| 7124434 |
Information transmission system, and information sending apparatus and information receiving apparatus used therein |
Oct. 17, 2006 |
| 7116783 |
Non-deterministic method for secured data transfer |
Oct. 3, 2006 |
| 7113595 |
Generation of a random number that is non-divisible by a set of prime numbers |
Sep. 26, 2006 |
| 7110539 |
Method and apparatus for encrypting and decrypting data |
Sep. 19, 2006 |
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