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:
Oct. 18, 2016
Filed:
Mar. 09, 2015
Applicant:
Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 1/00 (2006.01); H03K 3/03 (2006.01); H03L 1/02 (2006.01);
U.S. Cl.
CPC ...
H03L 1/00 (2013.01); H03K 3/0315 (2013.01); H03L 1/022 (2013.01);
Abstract
An oscillator circuit includes a voltage-controlled oscillator configured to output an AC output signal having a predetermined frequency, which changes due to temperature and fabrication process variations and a control voltage generating circuit configured to provide a voltage signal to the voltage-controlled oscillator to maintain the predetermined frequency by compensating for the temperature and fabrication process variations.