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:
Sep. 10, 2019
Filed:
Jun. 29, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Takayuki Uozumi, Utsunomiya, JP;
Hiroshi Koike, Utsunomiya, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/36 (2006.01); G01S 17/58 (2006.01); G01S 7/48 (2006.01); G01S 7/491 (2006.01);
U.S. Cl.
CPC ...
G01P 3/36 (2013.01); G01P 3/366 (2013.01); G01S 7/4808 (2013.01); G01S 7/4913 (2013.01); G01S 17/58 (2013.01);
Abstract
A velocimeter configured to detect light modulated by a moving object with a Doppler effect and measure a velocity of the object includes a detector configured to detect the light, and a processor configured to perform binarization of a signal obtained by the detector, and measure a time duration over a predetermined number of pulse intervals in the signal obtained by the binarization to obtain a measurement value of the velocity. The processor is configured to determine the measurement value as an error based on a change in an index relating to the time duration.