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:
Jan. 17, 2017
Filed:
May. 14, 2014
Applicant:
Dan Ozasa, Yokohama, JP;
Inventor:
Dan Ozasa, Yokohama, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/087 (2006.01); H03L 7/089 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0891 (2013.01); H03L 7/087 (2013.01); H03L 7/089 (2013.01);
Abstract
A phase-detector circuit is disclosed. The phase-detector circuit comprises a plurality of phase comparators which detects a phase difference between receipt data and a clock signal of a plurality of clock signals having the same frequency and phase difference of a predetermined angle with each other, and generates and outputs signals for up/down signals for synchronizing a phase. The phase comparator generates and outputs a signal for the up/down signals having a pulse width including a detected phase-time difference and a predetermined delay time.