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:
Nov. 04, 2014
Filed:
Sep. 12, 2012
Applicant:
Yun-shiang Shu, Zhubei, TW;
Inventor:
Yun-Shiang Shu, Zhubei, TW;
Assignee:
MediaTek Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H03K 3/45179 (2013.01); H03F 3/45197 (2013.01); H03F 2203/45492 (2013.01); H03F 2203/45466 (2013.01); H03F 2203/45482 (2013.01); H03F 3/45 (2013.01); H03K 5/2472 (2013.01);
Abstract
A comparator has a differential pair circuit, a current control circuit, and a latch. The differential pair circuit has first and second comparator transistors, and is arranged to compare a first input and a second input according to a clock signal to generate a result indicating whether a difference of the first and second inputs exceeds an internal offset. The current control circuit is coupled in series with the differential pair circuit, and configured to provide unequal abilities of drawing currents for the first and second comparator transistors.