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.

Date of Patent:
Jan. 28, 2025

Filed:

Jul. 04, 2022
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Fong-Wen Lee, Hsinchu, TW;

Wen-Chieh Wang, Hsinchu, TW;

Yu-Hsin Lin, Hsinchu, TW;

Assignee:

MEDIATEK INC., Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/087 (2006.01); H03K 17/687 (2006.01); H03L 7/07 (2006.01); H03L 7/107 (2006.01);
U.S. Cl.
CPC ...
H03L 7/087 (2013.01); H03K 17/687 (2013.01); H03L 7/07 (2013.01); H03L 7/107 (2013.01);
Abstract

The present invention provides a quadrature phase detector including a detection circuit. The detection circuit includes a first switch, a second switch and a first filter, wherein the first switch is controlled by a second clock signal to selectively couple a first clock signal to a first node, the second switch is controlled by the second clock signal to selectively coupled the first node to a reference voltage, and the first filter is configured to filter voltages at the first node to generate a first detection result.


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