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:
Oct. 22, 2013
Filed:
May. 23, 2008
Edward B. Harris, Fogelsville, PA (US);
Richard Hogg, Laurys Station, PA (US);
Ross A. Kohler, Allentown, PA (US);
Richard J. Mcpartland, Nazareth, PA (US);
Wayne E. Werner, Coopersburg, PA (US);
Edward B. Harris, Fogelsville, PA (US);
Richard Hogg, Laurys Station, PA (US);
Ross A. Kohler, Allentown, PA (US);
Richard J. McPartland, Nazareth, PA (US);
Wayne E. Werner, Coopersburg, PA (US);
Agere Systems LLC, Allentown, PA (US);
Abstract
A random number generator circuit includes a first memory having multiple storage elements. Each of the storage elements has an initial state corresponding thereto when powered up by a voltage supply source applied to the first memory. The first memory is operative to generate a first signal including multiple bits indicative of the respective initial states of the storage elements. The random number generator circuit further includes an error correction circuit coupled to the first memory. The error correction circuit is operative to receive the first signal and to correct at least one bit in the first signal that is not repeatable upon successive applications of power to the first memory to thereby generate a second signal. The second signal is a random number that is repeatable upon successive applications of power to the first memory.