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. 10, 2024
Filed:
Feb. 17, 2022
Applicant:
Novanta Corporation, Bedford, MA (US);
Inventor:
Chia-Pin Liang, Wayland, MA (US);
Assignee:
Novanta Corporation, Bedford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/26 (2006.01); G01D 5/26 (2006.01);
U.S. Cl.
CPC ...
G01B 11/26 (2013.01); G01D 5/26 (2013.01);
Abstract
A rotary position encoder includes a detection unit and a scale co-configured and co-operative to detect a relative rotational position and to generate a position output accordingly. The scale has a scale pattern according to a linear-feedback shift register (LFSR) pseudo-random code, which is a non-maximal length code having a seed value, tap positions, and modified least-significant bit position(s) of code words that satisfy rotary constraint by which each code word follows in sequence from the adjacent code word.