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.

Date of Patent:
May. 28, 2019

Filed:

Oct. 01, 2015
Applicant:

Sony Semiconductor Solutions Corporation, Kanagawa, JP;

Inventors:

Shingo Seto, Kanagawa, JP;

Satoshi Suda, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 21/00 (2006.01); H03L 7/081 (2006.01); H03L 7/16 (2006.01); H03L 7/10 (2006.01); H03L 7/18 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0812 (2013.01); H03L 7/101 (2013.01); H03L 7/104 (2013.01); H03L 7/16 (2013.01); H03L 7/1806 (2013.01);
Abstract

A phase-locked loop according to the present disclosure includes a reference-phase generation circuit that sequentially generates a reference phase value, and an oscillating circuit that generates a first clock on a basis of a difference between the reference phase value and a feedback phase value. The phase-locked loop further includes a signal generation circuit that generates, on a basis of the first clock, a plurality of second clocks varying in phase, and generates a third clock by switching the plurality of second clocks a plurality of times in each of cycle periods each corresponding to one cycle of the reference clock. The phase-locked loop further includes a phase detection circuit that determines a phase value of the third clock and outputs the determined phase value as the feedback phase value.


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