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:
Sep. 10, 2013
Filed:
Mar. 11, 2009
Applicant:
Markus Dichtl, München, DE;
Inventor:
Markus Dichtl, München, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 29/00 (2006.01); H03K 3/03 (2006.01); G06F 7/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device () for generating a random bit sequence has a digital ring oscillator circuit () having at least one first feedback path (R) and one second feedback path (R). To this end, a changeover is performed between the feedback paths (R, R) at times which can be predetermined, and a random signal (OS) having a random level history can be tapped at an output node () of the ring oscillator circuit ().