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:
Nov. 15, 2005
Filed:
May. 16, 2003
Applicant:
George Michael Hey, San Jose, CA (US);
Inventor:
George Michael Hey, San Jose, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R023/12 ; H03L007/06 ;
U.S. Cl.
CPC ...
Abstract
A test circuit receives a reference signal having a reference frequency and generates a synchronizer input signal having a synchronizer input frequency for inputting into a synchronizer circuit. A frequency generator is configured to offset the synchronizer input frequency at selectable frequencies from a nominal frequency value. An offset measurement circuit is configured to compare the frequency offset for the synchronizer input frequency with the frequency offset of a synchronizer output signal.