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.:

US 10045343 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 07, 2018

Filed:

Feb. 24, 2014
Applicant:

Agency for Science, Technology and Research, Singapore, SG;

Inventor:

Xi Chen, Singapore, SG;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04L 27/22 (2006.01); H04L 27/00 (2006.01); H03J 7/04 (2006.01); H04B 17/318 (2015.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04W 72/0453 (2013.01); H03J 7/04 (2013.01); H04B 17/318 (2015.01); H04L 27/0014 (2013.01); H04L 27/22 (2013.01); H04L 27/2657 (2013.01); H04L 2027/0028 (2013.01); H04L 2027/0055 (2013.01); H04L 2027/0065 (2013.01); H04L 2027/0069 (2013.01); H04L 2027/0073 (2013.01);
Abstract

An automatic frequency control (AFC) device is provided. The AFC device includes an input module, a received signal strength indicator (RSSI) module and a carrier frequency offset (CFO) estimation module. The input module down converts and samples a received signal. The RSSI module is coupled to the input module and calculates a RSSI signal in response to the down converted and sampled received signal. The CFO estimation module is coupled to the input module and the RSSI module and calculates a moving average of binary elements of the down converted and sampled received signal. The CFO estimation module continues to calculate the moving average until the AFC converges.


Find Patent Forward Citations

Chen, Xi. (2018). Digital auto frequency control for a general purpose if subsystem with multi-modulation schemes (U.S. Patent No. 10045343). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10045343

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