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:
Mar. 08, 2011
Filed:
Dec. 08, 2006
Choongyeun Cho, Hopewell Junction, NY (US);
Dae Ik Kim, Fishkill, NY (US);
Jonghae Kim, Fishkill, NY (US);
Moon J. Kim, Wappingers Falls, NY (US);
Choongyeun Cho, Hopewell Junction, NY (US);
Dae Ik Kim, Fishkill, NY (US);
Jonghae Kim, Fishkill, NY (US);
Moon J. Kim, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a random number generator, a first converter converts a first analog noise signal into a random digital clock signal and a second converter samples a second analog noise signal asynchronous to the first analog noise signal in response to the random digital clock signal and generates a random digital number stream. In one aspect, a random number generator output block samples the second converter random digital number stream in response to the random digital clock signal and generates a random number generator block output. In another aspect a pseudo noise source state machine generates the random digital clock signal in response to a first seed generated from the first analog noise signal, a second seed from process variation digital amplifier, and a past machine state.