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:
Jan. 26, 2010
Filed:
Aug. 19, 2005
Mark Alvin Schmidt, Charlotte, NC (US);
Kenneth Edward Hunt, Rock Hill, SC (US);
David Roy Holm, Oconomowoc, WI (US);
Scott Adam Stephens, Phoenix, AZ (US);
Mark Alvin Schmidt, Charlotte, NC (US);
Kenneth Edward Hunt, Rock Hill, SC (US);
David Roy Holm, Oconomowoc, WI (US);
Scott Adam Stephens, Phoenix, AZ (US);
Deere & Company, Moline, IL (US);
Abstract
A method and system for determining the position of a vehicle comprises a transmitter or transceiver for transmitting a transmission signal from a vehicle to beacons associated with the work area. A data processor determines an elapsed time including at least one of a first propagation duration and a second propagation duration. The first propagation duration refers to a propagation time of the transmission signal from the vehicle to the particular beacon; the second propagation duration refers to a propagation time of a return signal from the particular beacon to the vehicle. A compensator compensates for the following associated with the transmitter and the particular beacon: bias delay, noise, and measurement error. A data processor processes the elapsed times into corresponding position curves or temporal curves to estimate a position of a vehicle at a confluence or intersection of the position curves or temporal curves.