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:
Aug. 08, 2023
Filed:
Dec. 15, 2017
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Hidemi Noguchi, Tokyo, JP;
Junichi Abe, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 17/32 (2020.01); G01S 17/18 (2020.01); G01C 3/08 (2006.01);
U.S. Cl.
CPC ...
G01S 17/32 (2013.01); G01S 17/18 (2020.01); G01C 3/08 (2013.01);
Abstract
A distance-measuring apparatus () generates transmission light by generating a distance measurement signal, and subjecting an optical carrier wave to quadrature modulation on the basis of the generated distance measurement signal. The distance-measuring apparatus () outputs transmission light, and receives reflected light generated by reflecting the transmission light on an object () to be measured. The distance-measuring apparatus () compares the received reflected light with reference light to compute a distance from the distance-measuring apparatus () to the object () to be measured.