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:
Jun. 30, 2020
Filed:
May. 05, 2017
Applicant:
Mtd Products Inc, Valley City, OH (US);
Inventors:
Christopher J. Churavy, Lakewood, OH (US);
Edward J. Blanchard, Indianapolis, IN (US);
Assignee:
MTD PRODUCTS INC, Valley City, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 1/02 (2020.01); A01D 34/00 (2006.01); H03M 13/15 (2006.01); G01S 5/00 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
G05D 1/0276 (2013.01); A01D 34/008 (2013.01); G05D 1/0265 (2013.01); H03M 13/156 (2013.01); A01D 2101/00 (2013.01); G01S 5/00 (2013.01); G05D 2201/0208 (2013.01);
Abstract
A method for autonomous mower navigation includes receiving a return-to-zero encoded signal including a pseudo-random sequence, transforming the received signal to a non-return-to-zero representation, digitally sampling the non-return-to-zero signal representation in a time domain, filtering the sampled signal utilizing a reference data array based on the return-to-zero encoded signal to produce a filter output, and determining a location of the autonomous mower relative to a defined work area based on an evaluation of the filter output.