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:
Aug. 10, 1999
Filed:
Nov. 26, 1997
Applicant:
Inventors:
Robert Setbacken, Santa Barbara, CA (US);
Donald E Barnett, West Chester, PA (US);
Assignee:
Renco Encoders, Inc., Goleta, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
25023113 ; 25023116 ;
Abstract
A method and device for generating a reference signal for comparison with scanning signals generated by a position measuring device. The reference signal is generated using the same components used to scan a scale by averaging the scanning signals so that the reference signal is always less than the higher state of any scanning signal.