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:
Oct. 19, 2021
Filed:
Aug. 16, 2018
Wei Chen, Ellicott City, MD (US);
Shan Zhong, Clarksville, MD (US);
Jin Zhang, Ellicott City, MD (US);
Zhonghua Zhu, Clarksville, MD (US);
Lei Wu, Pleasanton, CA (US);
Wei Chen, Ellicott City, MD (US);
Shan Zhong, Clarksville, MD (US);
Jin Zhang, Ellicott City, MD (US);
Zhonghua Zhu, Clarksville, MD (US);
Lei Wu, Pleasanton, CA (US);
Other;
Abstract
The present disclosure relates to a FMCW Light Detection and Ranging system, a wave train of carrier frequency is modulated in narrow-band sequence, an delay interferometer with in-phase and quadrature outputs extracts the phase of this frequency modulation, and a coherent receiver with in-phase and quadrature outputs detects the phase of reflected light from a remote object, the ratio between two phases determines the distance of the remote object.