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. 15, 2020
Filed:
Feb. 21, 2019
Applicant:
Trimble Inc., Sunnyvale, CA (US);
Inventor:
James G. Quaderer, Sunnyvale, CA (US);
Assignee:
Trimble Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/27 (2006.01); G01N 33/00 (2006.01); G01N 21/35 (2014.01); A01M 7/00 (2006.01); A01M 21/04 (2006.01);
U.S. Cl.
CPC ...
G01N 21/274 (2013.01); A01M 7/0089 (2013.01); A01M 21/043 (2013.01); G01N 21/35 (2013.01); G01N 33/0098 (2013.01); G01N 2201/0627 (2013.01); G01N 2201/12746 (2013.01);
Abstract
A Light Emitting Diode (LED) is added to a weed control system for calibrating the weed control system. A detector generates an electrical signal based on receiving light emitted by the LED. An electronically-tunable capacitor of a bandpass filter is adjusted based the signal received from the detector to adjust a center frequency of the bandpass filter so that light from an optical source, different from the LED, can more efficiently be detected by the weed control system.