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:
Apr. 07, 2020

Filed:

Dec. 08, 2017
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Animesh Paul, Bangalore, IN;

Xinhua Chen, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/017 (2006.01); H03K 5/02 (2006.01); H03K 5/156 (2006.01); H03K 19/20 (2006.01); H03K 19/21 (2006.01); H03K 19/0948 (2006.01); H03K 5/00 (2006.01); H03D 7/14 (2006.01);
U.S. Cl.
CPC ...
H03K 3/017 (2013.01); H03D 7/1458 (2013.01); H03D 7/1466 (2013.01); H03K 5/023 (2013.01); H03K 5/1565 (2013.01); H03K 19/0948 (2013.01); H03K 19/20 (2013.01); H03K 19/215 (2013.01); H03K 2005/00234 (2013.01);
Abstract

In certain aspects, a clock generation circuit couples to a first clock having a first duty cycle and a second clock having the first duty cycle. The second clock lags the first clock by 90 degrees in phase. The clock generation circuit is configured to couple the output terminal to a ground when the first clock and the second clock both are at logic high and decouple the output terminal from the ground when at least one of the first clock and the second clock is at logic low and couple a supply voltage to the output terminal only when the first clock is at logic low and decouple the supply voltage from the output terminal when the first clock is at logic high. The clock generation circuit generates clock signals having a second duty cycle.


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