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:
Aug. 26, 2025
Filed:
Feb. 14, 2024
Applicant:
Nuvoton Technology Corporation Japan, Kyoto, JP;
Inventors:
Mayuko Fujita, Osaka, JP;
Akinori Shimmyo, Hyogo, JP;
Assignee:
NUVOTON TECHNOLOGY CORPORATION JAPAN, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/099 (2006.01); H03K 5/1252 (2006.01); H03L 7/083 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0992 (2013.01); H03K 5/1252 (2013.01); H03L 7/083 (2013.01);
Abstract
A phase-locked loop (PLL) circuit generates an output clock signal and includes: a selection circuit that selects one of a plurality of clock signals as a reference clock signal of the PLL circuit; and a control circuit that when a switch is made for the selection of the reference clock signal, temporarily reduces a division ratio used by a frequency divider that generates a feedback clock signal to be compared with the reference clock signal.