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:
Mar. 29, 2022

Filed:

Oct. 22, 2020
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Yue Chao, San Diego, CA (US);

Yinghan Wang, San Diego, CA (US);

Marco Zanuso, Encinitas, CA (US);

Rajagopalan Rangarajan, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03L 7/093 (2006.01); H03L 7/08 (2006.01);
U.S. Cl.
CPC ...
H03B 5/1215 (2013.01); H03B 5/1228 (2013.01); H03B 5/1243 (2013.01); H03B 5/1253 (2013.01); H03B 5/1293 (2013.01); H03L 7/08 (2013.01); H03L 7/093 (2013.01); H03B 2200/009 (2013.01); H03B 2200/0034 (2013.01);
Abstract

A voltage controlled oscillator (VCO) and buffer circuit includes a voltage controlled oscillator (VCO), a buffer circuit configured to receive a signal generated by the VCO, the buffer circuit comprising a first transistor having a parasitic gate-source capacitance (Cgs), and a second transistor coupled across the first transistor, wherein a gate of the first transistor is coupled to a drain and a source of the second transistor, and a gate of the second transistor is coupled to a source of the first transistor.


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