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:
Jun. 16, 2015
Filed:
Nov. 21, 2011
Applicant:
Ken Atsumi, Kawasaki, JP;
Inventor:
Ken Atsumi, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03L 7/085 (2006.01); G01R 25/00 (2006.01); H02J 17/00 (2006.01); H03L 7/081 (2006.01);
U.S. Cl.
CPC ...
H03L 7/085 (2013.01); G01R 25/00 (2013.01); H02J 17/00 (2013.01); H03L 7/0814 (2013.01);
Abstract
A method used by a phase difference detection circuit for detecting a phase difference between two signals includes shifting a detected phase difference between the two signals by an offset value, outputting the detected phase difference, and controlling the offset value such that the outputted detected phase difference falls within a phase difference range between a lower limit and an upper limit.