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.:
Date of Patent:
Jul. 06, 2004
Filed:
Mar. 01, 2001
Richard J. Takahashi, Phoenix, AZ (US);
Corrent Corporation, Tempe, AZ (US);
Abstract
A system and method for generating an indeterminate random digital data string based on a sampling source, which varies in frequency and phase, sampling an entropy source that also varies in frequency and phase, and additionally based on the principles of permutation and substitution. The system includes a random number generation circuit and a data substitution circuit coupled to receive random data output from the random number generation circuit. A data permutation circuit is coupled to receive substituted random data output from the data substitution circuit. A data compression circuit is coupled to receive permuted and substituted random data output from the permutation circuit and output at least a portion of the indeterminate random data string. A plurality of variable frequency clocks, each operating at different clock frequencies, are selectively coupled to various of the circuits within the system.