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. 21, 2003
Filed:
Mar. 13, 2001
Applicant:
Inventors:
Tetsuro Kiriyama, Kawasaki, JP;
Toshiharu Miyata, Kawasaki, JP;
Nobuyuki Hayashi, Kawasaki, JP;
Kouji Sasaki, Kawasaki, JP;
Yoshiaki Shiraishi, Kawasaki, JP;
Assignee:
Mitutoyo Corporation, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/00 ; G01B 7/14 ; G01R 3/102 ;
U.S. Cl.
CPC ...
G01B 7/00 ; G01B 7/14 ; G01R 3/102 ;
Abstract
In an electronic caliper, a detecting circuit detects displacement of a grid with respect to a scale, on the basis of a signal from a transducer A CPU displays the detected position on a display device . The CPU performs error detection on the transducer, only when the relative speed of the grid with respect the scale is zero, or becomes equal to or smaller than a predetermined value. Since error detection is performed only at a predetermined timing, power consumption can be reduced.