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.:

US 6872934 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 29, 2005

Filed:

May. 30, 2001
Applicants:

Hideki Suzuki, Fukushima-ken, JP;

Kouichi Ogino, Fukushima-ken, JP;

Inventors:

Hideki Suzuki, Fukushima-ken, JP;

Kouichi Ogino, Fukushima-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D005/34 ; H03M001/22 ;
U.S. Cl.
CPC ...
Abstract

In a detector apparatus, voltage signals of phase A and phase B are mixed, the mixed signal is divided to obtain a low-voltage signal, and the low-voltage signal is integrally smoothed. The integrally smoothed low-voltage signal is added to each of the voltages obtained by smoothing the voltage signals of the phase A and phase B. The results are used as threshold voltages of comparators constituting a wave-shaping circuit. The threshold voltages change in accordance with the voltage signals of phase A and phase B, achieving a high accuracy of binarization even when the voltage signals Sa and Sb have variations.


Find Patent Forward Citations

Suzuki, Hideki. (2005). Optical detector apparatus (U.S. Patent No. 6872934). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6872934

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