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. 25, 2002
Filed:
Apr. 02, 1999
Applicant:
Inventor:
Hiroshi Kanno, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/095 ; H03L 7/06 ;
U.S. Cl.
CPC ...
H03L 7/095 ; H03L 7/06 ;
Abstract
A phase lock signal generation unit includes a phase difference signal generation unit for generating a phase difference signal between a reference clock signal and an internal clock signal; a phase shift detection unit for generating a signal indicating a release of a phase lock signal LOCK when phase shifts occur continuously two times in predetermined intervals in a phase different signal; and a wait time count unit which is controlled by an output from the phase shift detection unit, and releases the phase lock signal.