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:
Aug. 24, 1982
Filed:
Jun. 18, 1980
Applicant:
Inventor:
Akio Takahama, Kawasaki, JP;
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06J / ; G06G / ; G01D / ;
U.S. Cl.
CPC ...
364560 ; 2502 / ; 3403 / ; 364603 ; 364606 ; 364817 ;
Abstract
A device for dividing two sine signals out of phase with each other obtained from a detector in accordance with a position change and to enable a greater resolution and accuracy in the determination of displacement comprises a division circuit connected to the detector to provide an output representative of the ratio of the two sine signals, and conversion means for causing the output of the division circuit to correspond to a displacement.