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. 05, 2002
Filed:
May. 13, 1998
Hideo Nishikawa, Uji, JP;
Nidec-Read Corporation, Kyoto, JP;
Abstract
Position detection electrodes are disposed so as to be point-symmetrical relative to an arbitrary point on a line X that extends almost along the center of a printed pattern on an opposite circuit board and is parallel with the Y axis. Position detector electrodes are disposed in the same manner. A probe selector switch section can provide a probe selection signal, and a position detector sensor selection which section can provide a signal for selecting among the position detection electrodes. A detected voltage varies depending on how the position detection electrode is opposed to a printed pattern. Thus, misalignment can be detected by detecting the opposition relationship between each of the position detection electrodes and the printed pattern.