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:
Oct. 29, 2002
Filed:
May. 11, 1999
Applicant:
Inventor:
Hitosi Matui, Tokyo, JP;
Assignee:
NEC Corp., , JP;
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/18 ; H03D 3/24 ;
U.S. Cl.
CPC ...
H03D 3/18 ; H03D 3/24 ;
Abstract
In a phase-locked loop circuit with a signal estimator such as MLSE or DDFSE for correctly detecting and correcting a phase deviation, the phase deviation is held within a predetermined value by amplitude limiting a phase deviation signal obtained from a received signal and a replica signal. Thus, the phase deviation signal is free from a large error irrespective of generation of an estimation error in the MLSE or DDFSE.