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:
Sep. 06, 2022

Filed:

Nov. 30, 2020
Applicant:

Silicon Laboratories Inc., Austin, TX (US);

Inventors:

Michael A. Wu, Austin, TX (US);

Wentao Li, Austin, TX (US);

Yan Zhou, Spicewood, TX (US);

Assignee:

Silicon Laboratories Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01); H03L 7/23 (2006.01); H04L 27/00 (2006.01); H03D 7/16 (2006.01);
U.S. Cl.
CPC ...
H04L 27/06 (2013.01); H03D 7/165 (2013.01); H03L 7/23 (2013.01); H04L 27/0014 (2013.01); H03D 2200/0082 (2013.01); H04L 2027/0016 (2013.01);
Abstract

A method for communicating between a first radio frequency communications device including a first local oscillator and a second radio frequency communications device including a second local oscillator includes receiving a packet using a receiver of the first radio frequency communications device. The method includes detecting an average frequency offset based on sequential samples of the packet. The method includes applying a first adjustment to the first local oscillator to reduce a frequency offset between the first local oscillator and the second local oscillator. The first adjustment is based on the average frequency offset. The method includes, after adjusting the first local oscillator, transmitting a second packet to the second radio frequency communications device by the first radio frequency communications device using the first adjustment and the first local oscillator.


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