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.

Date of Patent:
May. 19, 2020

Filed:

Oct. 19, 2018
Applicant:

Trimble Inc., Sunnyvale, CA (US);

Inventors:

James G. Quaderer, Sunnyvale, CA (US);

Aubrey Jason Calder, Mountain View, CA (US);

Xin Zhao, San Jose, CA (US);

Assignee:

Trimble Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 21/25 (2006.01); G01J 9/00 (2006.01); A01M 21/00 (2006.01); H05B 45/10 (2020.01);
U.S. Cl.
CPC ...
G01N 33/0098 (2013.01); A01M 21/00 (2013.01); G01J 9/00 (2013.01); G01N 21/255 (2013.01); H05B 45/10 (2020.01);
Abstract

Methods for controlling a plant detection system include determining a target phase delay based on a first phase delay of reflected portions of a first light beam and a second phase delay of reflected portions of a second light beam. A composite light beam comprising the first light beam and the second light beam is emitter towards bare soil, and reflected portions of the composite light beam are detected. An intensity of at least one of the first light beam or the second light beam is adjusted so that a phase delay of the composite light beam is approximately equal to the target phase delay.


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