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:
Jun. 10, 2025
Filed:
Jan. 21, 2022
Applicant:
Acacia Technology, Inc., San Jose, CA (US);
Inventor:
Hongbin Zhang, Maynard, MA (US);
Assignee:
ACACIA TECHNOLOGY, INC., SAN JOSE, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/14 (2006.01); H04B 1/12 (2006.01);
U.S. Cl.
CPC ...
H04L 27/14 (2013.01); H04B 1/123 (2013.01);
Abstract
In part, the disclosure relates to a method of carrier frequency estimation. The method includes selecting a first group of symbols from a constellation of a carrier signal, wherein the first group includes one or more subgroups of symbols from the constellation; estimating a carrier frequency or carrier frequency offset of the carrier signal by approximating the carrier frequency offset as Δf, wherein and determining cos(θ) and sin(θ) using a coordinate rotation digital computer (CORDIC) algorithm, wherein the CORDIC algorithm calculates rotation of a two-dimensional vector by θ using add and/or shift operations.