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:
Mar. 07, 1989
Filed:
Jul. 08, 1987
Applicant:
Inventors:
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
178 19 ;
Abstract
A frequency coupling position coordinates determination apparatus includes sheet means on which N (positive integer) one-turn coils for detecting a magnetic force and M (less than N) signal lines to which at least one predetermined one-turn coil of the N one-turn coils is connected are arranged, and detecting means for detecting the amplitudes of currents respectively flowing through the M signal lines.