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:
Jun. 17, 2008
Filed:
Nov. 24, 2004
Catalin Baetoniu, Toronto, CA;
Catalin Baetoniu, Toronto, CA;
Xilinx, Inc., San Jose, CA (US);
Abstract
Method and apparatus for true random number generation is described. One aspect of the invention relates to a digital logic circuit that includes N logic gates, where N is an integer greater than two. For each logic gate in the N logic gates: a first input terminal thereof is coupled to an output terminal thereof; a second input terminal thereof is coupled to an output terminal of a left neighbor thereof; and a third input terminal thereof is coupled to an output terminal of a right neighbor thereof. A sampling logic circuit may be provided to sample the output of the N logic gates to produce N-bit binary numbers. The N-bit binary numbers are true random numbers produced using pure digital logic without using an external source of randomness. A linear hybrid cellular automaton (LHCA) may be provided for scrambling output data of the sampling circuit.