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:
Apr. 07, 2015
Filed:
May. 17, 2012
Applicant:
Ming-chung Huang, Taichung, TW;
Inventor:
Ming-Chung Huang, Taichung, TW;
Assignee:
Realtek Semiconductor Corp., Science Park, HsinChu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L 1/00 (2006.01); H03L 1/02 (2006.01);
U.S. Cl.
CPC ...
H03L 1/027 (2013.01);
Abstract
An oscillating frequency drift detecting method, which comprises: receiving an oscillating signal with an oscillating frequency, wherein the oscillating signal is generated by a crystal oscillator; generating a self-mixing signal according to the oscillating signal; obtaining a self-mixing frequency of a maximum power of the self-mixing signal in a specific frequency range; and computing a frequency drift of the oscillating frequency, according to the self-mixing frequency of the maximum power, and the oscillating frequency.