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:
Dec. 21, 2021
Filed:
Oct. 03, 2019
Applicant:
Thine Electronics, Inc., Tokyo, JP;
Inventors:
Yusuke Fujita, Tokyo, JP;
Yuji Gendai, Tokyo, JP;
Assignee:
THINE ELECTRONICS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/099 (2006.01); H03L 7/18 (2006.01); H03L 7/089 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0995 (2013.01); H03L 7/0895 (2013.01); H03L 7/18 (2013.01);
Abstract
A PLL circuit includes a phase comparator, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency divider, a frequency difference determination unit, and an FV characteristics adjustment unit. The frequency difference determination unit determines whether or not a frequency difference between a feedback oscillation signal and an input signal is equal to or smaller than a threshold value. The FV characteristics adjustment unit selects a frequency band in the voltage-controlled oscillator and adjusts FV characteristics.