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:
Jul. 27, 2010
Filed:
Sep. 23, 2008
Manu Seth, San Jose, CA (US);
David Brubaker, Los Altos, CA (US);
Andrew Mccraith, Orinda, CA (US);
Richard Steven Miller, Los Altos, CA (US);
Mir Bahram Ghaderi, Cupertino, CA (US);
Manu Seth, San Jose, CA (US);
David Brubaker, Los Altos, CA (US);
Andrew McCraith, Orinda, CA (US);
Richard Steven Miller, Los Altos, CA (US);
Mir Bahram Ghaderi, Cupertino, CA (US);
Silicon Labs SC, Inc., Sunnyvale, CA (US);
Abstract
A frequency-control circuit, which is configured to receive a first signal having a first untuned frequency from a first oscillator, and to alter one or more pulses of the first signal to tune an output frequency of an output clock signal to have an average frequency at the desired target frequency. In some embodiments, the two oscillators of intentionally different frequencies are periodically switched at a duty factor, which is dependent on an absolute temperature, to generate a calibrated, precise, and temperature-stable clock.