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:
May. 26, 2020
Filed:
Mar. 18, 2019
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Mohamed Abouzied, La Jolla, CA (US);
Rajagopalan Rangarajan, San Diego, CA (US);
Peter Shah, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06G 7/20 (2006.01); G06F 7/44 (2006.01); G06F 7/552 (2006.01); G05F 3/26 (2006.01); H04B 17/13 (2015.01); G05F 3/24 (2006.01);
U.S. Cl.
CPC ...
G05F 3/262 (2013.01); G05F 3/242 (2013.01); H04B 17/13 (2015.01);
Abstract
A circuit includes a first transistor that conducts a first current responsive to a DC bias voltage and an RF signal. A second transistor conducts a second current responsive to the DC bias voltage. The first current and the second current are mirrored through a pair of current mirrors coupled together through a low-pass filter to filter the envelope of the RF signal.