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:
Feb. 15, 2011
Filed:
Aug. 16, 2005
David William Boerstler, Round Rock, TX (US);
Eskinder Hailu, Austin, TX (US);
Harm Peter Hofstee, Austin, TX (US);
John Samuel Liberty, Round Rock, TX (US);
David William Boerstler, Round Rock, TX (US);
Eskinder Hailu, Austin, TX (US);
Harm Peter Hofstee, Austin, TX (US);
John Samuel Liberty, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A random number generator, a method, and a computer program product are provided for producing a random number seed. Each oscillator within an array of oscillators operates at a different frequency. The operating frequencies of each oscillator are not harmonically related, such that no integer multiple exists between the frequencies of any two oscillators. In one embodiment, the outputs of the array of oscillators connect to a multiple input latch. The multiple input latch also receives a sample signal, which is a clock signal. The clock signal samples the outputs of the array of oscillators, and the multiple input latch in conjunction with the random number determination logic ('RNDL') produces a digital output (0 or 1) for each oscillator within the array. The RNDL uses these digital outputs to create a random number seed.