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. 04, 2006
Filed:
Dec. 13, 2004
Applicants:
Han-chang Kang, Taipei Hsien, TW;
Chao-cheng Lee, Hsin-Chu, TW;
Inventors:
Han-Chang Kang, Taipei Hsien, TW;
Chao-Cheng Lee, Hsin-Chu, TW;
Assignee:
Realtek Semiconductor Corp., HsinChu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for detecting a phase difference between a first input signal and a second input signal is provided. The method contains: detecting the phase difference of the first and the second input signals to produce an output signal; generating a first voltage according to a first level of the output signal; generating a second voltage according to a second level of the output signal; and comparing the first voltage and the second voltage to produce the information regarding the phase difference between the first and the second input signals.