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:
Apr. 25, 2006
Filed:
Jun. 11, 2002
Applicants:
Hiroto Tokutome, Tokyo, JP;
Seiji Sawada, Tokyo, JP;
Inventors:
Hiroto Tokutome, Tokyo, JP;
Seiji Sawada, Tokyo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 7/00 (2006.01); H03D 3/24 (2006.01); H03L 7/06 (2006.01); H03L 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A delay locked loop (DLL) circuit comprising: a fundamental phase comparator for detecting a fundamental phase difference of two input signals; a delay circuit; a delay control circuit for adjusting a delay time of the delay circuit in response to an output signal of the fundamental phase comparator; and at least one further phase comparator for detecting a phase difference other than the fundamental phase difference such that an amount of change of the delay time is changed in accordance with the fundamental phase difference.