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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 12567909 B1

PDFFull Text
Date of Patent:
Mar. 03, 2026

Filed:

Dec. 10, 2020

Coherent receiving device and anemometry lidar system

Applicant:

Accelink Technologies Co., Ltd., Wuhan, CN;

Inventors:

Chuan Shi, Wuhan, CN;

Bo Zhang, Wuhan, CN;

Honggang Chen, Wuhan, CN;

Xuerui Liang, Wuhan, CN;

Xuanxuan Cheng, Wuhan, CN;

Assignee:

ACCELINK TECHNOLOGIES CO., LTD., Wuhan, CN;

Attorney:

Knobbe Martens Olson & Bear LLP

Primary Examiner:

Vladimir Magloire

Assistant Examiner:

Ashley Brown Raynal

Int. Cl.
CPC ...
H04B 10/61 (2013.01); G01P 5/26 (2006.01); G01S 7/4912 (2020.01); G01S 7/499 (2006.01); G01S 17/58 (2006.01); G01S 17/95 (2006.01);
U.S. Cl.
CPC ...
H04B 10/614 (2013.01); G01P 5/26 (2013.01); G01S 7/4917 (2013.01); G01S 7/499 (2013.01); G01S 17/58 (2013.01); G01S 17/95 (2013.01); H04B 10/616 (2013.01);
Abstract

A coherent receiving device and anemometry lidar system. The device includes: a polarization maintaining optical fiber pin for receiving local oscillation light and outputting it to frequency mixer; a polarization beam splitting prism for receiving signal light, splitting it into first and second signal light, and outputting them to the frequency mixer; the frequency mixer for mixing the first and second signal light with the local oscillation light and outputting the mixed light to PD array; the PD array for converting the mixed light to differential current signal; and a signal processing circuit for converting the differential current signal to differential voltage signal whose derivation formula includes part of frequency difference between the signal light and local oscillation light, detecting a frequency of the differential voltage signal to obtain a value of the frequency difference, and obtaining Doppler frequency shift amount of the signal light according to the value.

Find Patent Forward Citations

Shi, Chuan. (2026). Coherent receiving device and anemometry lidar system (U.S. Patent No. 12567909). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12567909

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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