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:
Oct. 18, 2022
Filed:
Oct. 09, 2020
Applicant:
Dmg Mori Co., Ltd., Nara, JP;
Inventors:
Akira Kimura, Kanagawa, JP;
Katsuhiko Ono, Kanagawa, JP;
Assignee:
DMG Mori Co., Ltd., Nara, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/249 (2006.01); G01D 5/347 (2006.01);
U.S. Cl.
CPC ...
G01D 5/34746 (2013.01); G01D 5/34784 (2013.01);
Abstract
This invention provides a linear encoder having an arbitrary size while maintaining high producibility. An absolute linear encoder includes a long scale formed by continuously connecting a first short scale and a second short scale in which a first cyclic bit string and a second cyclic bit siring generated using the same initial value for different generator polynomials are arranged, and at least two sensors arranged at positions facing the long scale side by side in a longitudinal direction of the long scale.