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:
Oct. 27, 2020

Filed:

Aug. 15, 2019
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:

Radha Srinivasan, Irvine, CA (US);

Brima Babatunde Ibrahim, Laguna Hills, CA (US);

Edward Youssoufian, Irvine, CA (US);

Assignee:

NXP B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 3/00 (2006.01); H03G 3/30 (2006.01); H03F 3/30 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3036 (2013.01); H03F 3/3052 (2013.01); H03G 3/3078 (2013.01); H04K 3/22 (2013.01);
Abstract

A communication system including an analog front end and an automatic gain controller. The analog front end includes at least one amplifier for amplifying a received analog signal and an analog to digital converter that converts the analog signal to digital samples. The automatic gain controller includes comparator circuitry, counter circuitry, and a gain controller. The comparator circuitry compares each of the digital samples with an upper threshold and a lower threshold. The counter circuitry counts a high count number of the digital samples having magnitudes that are greater than the upper threshold during each count window and counts a low count number of the digital samples having magnitudes that are less than the lower threshold during the count window. The gain controller adjusts a gain of the at least one amplifier by an amount based on the high count number and the low count number.


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