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. 22, 2019
Filed:
Mar. 14, 2017
Applicant:
Plethron Inc., a Delaware Corporation, Palo Alto, CA (US);
Inventor:
Charles Chu, Cupertino, CA (US);
Assignee:
PLETHRON INC., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/497 (2006.01); G01S 17/36 (2006.01);
U.S. Cl.
CPC ...
G01S 7/497 (2013.01); G01S 17/36 (2013.01);
Abstract
Embodiments of the present disclosure use an 'on chip' silicon LED to generate a light signal for calibration of a range finder. The light signal from the silicon LED may be detected by photo detectors in a reference path and a receive path of the range finder to generate a calibration phase offset, which may be subtracted out from a phase offset measurement of the range finder to correct the phase offset measurement for component mismatch due to, for example, environment, process variation, aging, etc.