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.

Date of Patent:
Mar. 06, 2012

Filed:

May. 23, 2006
Applicants:

Kouichi Arai, Utsunomiya, JP;

Kazuhiko Kodama, Utsunomiya, JP;

Inventors:

Kouichi Arai, Utsunomiya, JP;

Kazuhiko Kodama, Utsunomiya, JP;

Assignee:

Mitutoyo Corporation, Kawasaki-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/30 (2006.01); G01C 11/12 (2006.01); G06K 9/00 (2006.01); G05B 11/18 (2006.01); H04N 1/46 (2006.01); H04N 1/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

When generating an origin signal of an encoder having a scale on which an incremental pattern and the origin pattern are formed, an origin signal having a necessary position and width is generated by software based on an origin waveform obtained from the origin pattern. This enables origin detection with excellent repeatability, S/N ratio (pulse width), and bidirectionality while maintaining ease of mounting and adjustment.


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