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. 22, 2009
Filed:
Aug. 04, 2006
Applicants:
Werner Bachhuber, München, DE;
Osman Doertok, München, DE;
Parag Parikh, Allentown, PA (US);
Inventors:
Assignee:
Agere Systems Inc., Allentown, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
G04F 8/00 (2006.01); H03H 11/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a circuit for testing a delay module. An output of a ring oscillator formed with the delay module is transmitted to a counter. The counter generates a plurality of counts, each count associated with a setting of control lines of the delay module. One of the plurality of counts is then compared with a previous one of the plurality of counts.