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:
Jan. 30, 2024
Filed:
Dec. 03, 2021
Applicant:
U-blox Ag, Thalwil, CH;
Inventor:
Zhenlan Cheng, Thalwil, CH;
Assignee:
u-blox AG, Thalwil, CH;
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/233 (2006.01); H04L 27/227 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2338 (2013.01); H04L 27/227 (2013.01);
Abstract
A method and apparatus are provided for demodulating a wireless signal modulated by phase-shift keying. The signal comprises a plurality of symbols. The method includes: obtaining a first sequence of samples based on the signal; converting the first sequence of samples to a first sequence of frequency domain samples; selecting, as a decision variable, the sample that has the maximum magnitude among the first sequence of frequency domain samples; and identifying a symbol or a symbol-transition based on the decision variable.