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:
May. 19, 2020
Filed:
Dec. 15, 2016
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 21/00 (2006.01); H03L 7/095 (2006.01); H03L 7/089 (2006.01); H03L 7/099 (2006.01); H03L 7/197 (2006.01); H03L 7/107 (2006.01); H03L 7/093 (2006.01); H03K 19/20 (2006.01);
U.S. Cl.
CPC ...
H03L 7/095 (2013.01); H03L 7/089 (2013.01); H03L 7/0891 (2013.01); H03L 7/093 (2013.01); H03L 7/099 (2013.01); H03L 7/107 (2013.01); H03L 7/197 (2013.01); H03K 19/20 (2013.01);
Abstract
A lock detector () detects an unlocked state from an output of a phase frequency comparator (). A counter () counts a reference signal, in a case where an unlocked state is detected by the lock detector (). A parameter controlling circuit () acquires the count value of the counter (), and controls switching on and off of a switch () for a D/A converter () that generates a signal to be added to an output of a loop filter (), and the output voltage of the D/A converter () so that the count value of the counter () falls within a set value.