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:
Dec. 03, 2018
Applicants:
Stmicroelectronics (Grenoble 2) Sas, Grenoble, FR;
Stmicroelectronics (Alps) Sas, Grenoble, FR;
Inventors:
Benoit Marchand, Fontanil-Cornillon, FR;
Francois Druilhe, Le Versoud, FR;
Assignees:
STMicroelectronics (Grenoble 2) SAS, Grenoble, FR;
STMicroelectronics (Alps) SAS, Grenoble, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03C 3/09 (2006.01); H03L 7/099 (2006.01); H03B 5/36 (2006.01); H03L 1/02 (2006.01); H03L 7/183 (2006.01); H03L 1/00 (2006.01); H03B 5/04 (2006.01);
U.S. Cl.
CPC ...
H03B 5/366 (2013.01); H03B 5/04 (2013.01); H03L 1/00 (2013.01); H03L 1/026 (2013.01); H03L 1/028 (2013.01); H03L 7/0991 (2013.01); H03L 7/183 (2013.01);
Abstract
A quartz crystal resonator is connected to an array of switchable capacitors or resistors. The switched actuation of elements of the array is controlled by bits of a control word. At least one of the bits of the control word is controlled by pulse width modulation to effectuate a tuning of the oscillation frequency of the quartz crystal resonator.