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:
Apr. 01, 2008
Filed:
Nov. 16, 2006
Applicant:
Yasukazu Hayashi, Aichi, JP;
Inventor:
Yasukazu Hayashi, Aichi, JP;
Assignee:
Okuma Corporation, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
An absolute position detector for accurately reading a code recorded on an absolute track is provided. Output signals from sensors that read a code recorded on an absolute track are input into a binarization processor. A compensator provided within the binarization processor functions to correct and determine the value of a read target bit based on an output signal from a read sensor which is the sensor located closest to the center of the one-bit width of the read target bit, and an output signal from a compensation sensor, which is a sensor separated from the read sensor by a distance within the range from λ/2 to 3·λ/2.