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:
Jan. 13, 2015
Filed:
Dec. 21, 2012
Mediatek Singapore Pte. Ltd., Singapore, CA (US);
I-Chang Wu, Fremont, CA (US);
Alireza Shirvani-Mahdavi, San Jose, CA (US);
MediaTek Singapore Pte. Ltd., Singapore, SG;
Abstract
A duty cycle detector and calibration system is disclosed. In some embodiments, a duty cycle calibration system includes a first tuning circuit operative to receive an input signal, tune a duty cycle of the input signal to within a first error range, and provide a first output signal. A second tuning circuit tunes a duty cycle of the first output signal to within a second error range and provides a second output signal, where the second error range has more precision than the first error range. A duty cycle detector provides a duty cycle detection signal indicative of a duty cycle of the second output signal, and logic controls the first and second tuning circuits based upon the duty cycle detection signal.