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:
May. 05, 2020

Filed:

Dec. 19, 2018
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventor:

Yi-Hung Tseng, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/099 (2006.01); H03L 7/093 (2006.01); H03L 7/18 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0991 (2013.01); H03L 7/093 (2013.01); H03L 7/18 (2013.01); H03L 2207/50 (2013.01);
Abstract

Certain aspects of the present disclosure are directed to a digitally controlled oscillator (DCO). The DCO generally includes an oscillator, a current mirror having a first branch coupled to a control input of the oscillator, a first current source, and a first transistor having a drain coupled to the first current source and a gate of the first transistor, a source of the first transistor being coupled to the control input of the oscillator. The DCO may also include a second current source coupled to the source of the first transistor, and a second transistor having a gate coupled to the gate of the first transistor, a drain of the second transistor being coupled to a second branch of the current mirror.


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