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:
Mar. 09, 2021
Filed:
Nov. 13, 2019
Applicant:
Anapass Inc., Seoul, KR;
Inventors:
Hyung Ki Huh, Seoul, KR;
Dong Joon Lee, Seoul, KR;
Assignee:
Anapass Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/08 (2006.01); H03L 7/099 (2006.01); H03L 7/081 (2006.01); H03L 7/091 (2006.01); H03L 7/087 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0802 (2013.01); H03L 7/087 (2013.01); H03L 7/0812 (2013.01); H03L 7/0816 (2013.01); H03L 7/091 (2013.01); H03L 7/0992 (2013.01); H03L 2207/18 (2013.01);
Abstract
Disclosed is a phase-locked loop which alternately operates in a sleep state and an active state. A frequency-divided output signal of the phase-locked loop is synchronized with a frequency-divided reference signal. When the phase-locked loop switches from a sleep state to an active state, a frequency of the frequency-divided output signal is identical to a frequency of a frequency-divided output signal which has been synchronized in a previous active state. Information corresponding to the frequency of the frequency-divided output signal which has been synchronized in the previous active state is stored in a memory device.