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:
Jan. 17, 1989
Filed:
Mar. 09, 1987
Applicant:
Inventors:
Toshiyuki Makino, Kanagawa, JP;
Tsuyoshi Yamaguchi, Kanagawa, JP;
Assignee:
Hitachi Seiko, Ltd., Kanagawa, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ; G01N / ; G01R / ; G08C / ;
U.S. Cl.
CPC ...
178 19 ; 324208 ; 324225 ;
Abstract
In a coordinates detecting device comprising: a cursor; a tablet in which conductors are arranged in a predetermined periodic pattern; and arithmetic means for calculating the position of the cursor according to the outputs of the tablet, correction values for correcting the errors which are caused in common with all the periods of the pattern and in correspondence to the positions in each of the periods have been stored in memory, and the position of the cursor calculated by the arithmetic means is corrected by using the respective correction value.