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. 28, 2017
Filed:
Aug. 18, 2014
Applicants:
Wangsheng Mei, Suzhou, CN;
Yang Wang, Suzhou, CN;
Jianzhou Wu, Suzhou, CN;
Yan Xiao, Suzhou, CN;
Inventors:
Assignee:
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/58 (2006.01); H03K 3/03 (2006.01); H03K 3/84 (2006.01);
U.S. Cl.
CPC ...
G06F 7/588 (2013.01); H03K 3/0315 (2013.01); H03K 3/84 (2013.01);
Abstract
A true random number generator (RNG) has one or more oscillators and an output register for storing a random number output. Each of the oscillators is activated, successively, in a free-running oscillation phase, and a capture phase during which the oscillator is quiescent. The output register latches during the capture phase of each oscillator an end state of that oscillator at or close to the end of its oscillation phase. The random number output is derived from the latched end states.