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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7142675 B1

PDFFull Text
Date of Patent:
Nov. 28, 2006

Filed:

Feb. 12, 2002

Sequence generator and method of generating a pseudo random sequence

Applicants:

Lee Ming Cheng, Hong Kong, HK;

Chi Kwong Chan, Hong Kong, HK;

Inventors:

Lee Ming Cheng, Hong Kong, HK;

Chi Kwong Chan, Hong Kong, HK;

Assignee:

City University of Hong Kong, Hong Kong, HK;

Attorney:

Jackson Walker, LLP

Primary Examiner:

Ayaz Sheikh

Assistant Examiner:

Longbit Chai

Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04K 1/00 (2006.01); H04L 9/28 (2006.01); H04L 9/06 (2006.01); G06F 1/02 (2006.01); G06F 7/58 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sequence generator for generating a pseudo random sequence for random number generation or a stream cipher engine includes a plurality of linear feedback shift registers operable to generate a plurality of binary sequences. A plurality of nonlinear functions having the binary sequences as their input and operable to generate a second plurality of binary sequences. There are at least two switches and a controller including a shift register operable to control said first and second switches. The first switch is operative to select one of the second plurality of binary sequences to the first bit of the shift register, and the second switch is operative to select one of said second plurality of binary sequences to the output of the sequence generator.

Find Patent Forward Citations

Cheng, Lee. (2006). Sequence generator and method of generating a pseudo random sequence (U.S. Patent No. 7142675). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7142675

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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