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. 17, 1991
Filed:
Oct. 31, 1990
Applicant:
Inventor:
Dean H Symonds, Cherryvale, KS (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ; H03M / ;
U.S. Cl.
CPC ...
341 10 ; 341 13 ; 341-2 ;
Abstract
A position encoder includes a plurality of encoded elements or disks, each of which has indicia representative of a bit of a five bit digital word of a Gray code. Each disk is mechanically coupled to a lever or movable member. A sensor is positioned adjacent to each disk so that the sensors produce digital signals in response to the indicia. The indicia are arranged so that if only one bit of any word is changed, then the modified word will either be a) identical to a word representing an adjacent position of the lever, or b) different from all the words which represent lever positions.