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:
Apr. 17, 1990
Filed:
Dec. 22, 1988
Carl E Bohman, New Holland, PA (US);
Ford New Holland, Inc., New Holland, PA (US);
Abstract
A non-contact row crop sensor comprises one or more transmitter/receptor pairs mounted on two row separators of a harvesting machine. Each transmitter transmits an energy beam to one of the receptors and the energy beams cross at a point which defines a position of the harvesting machine relative to a row of crop stalks. A circuit produces steering control signals dependent upon the time of intercept of one beam of a pair relative to the time of intercept of the second beam of the pair. A discriminator circuit is provided for discriminating between crop stalks and weeds. Plural transmitter/receptor pairs permit discrimination between intercepts caused by leaves and those caused by stalks.