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:
Feb. 07, 2006
Filed:
Dec. 18, 2003
Moojin Kim, Kyungsangbuk-do, KR;
Wonkyu Moon, Kyungsangbuk-do, KR;
Wankyun Chung, Kyungsangbuk-do, KR;
Moojin Kim, Kyungsangbuk-do, KR;
Wonkyu Moon, Kyungsangbuk-do, KR;
Wankyun Chung, Kyungsangbuk-do, KR;
POSTECH Foundation, Kyungsangbuk-do, KR;
Abstract
A capacitive motion sensor includes a primary plate including a primary pattern replicated periodically, a secondary plate including a plurality of pattern regions with an insulated region inserted there between, wherein each of the pattern regions has a secondary pattern replicated periodically, a signal source for sending a plate input signal to the primary plate, and a displacement measuring unit for receiving a plurality of plate output signals from the secondary plate to measure a displacement of a moving one of the plates with respect to the other one of the plates. The primary plate is arranged in parallel with the secondary plate in such a manner that the primary pattern is confronted with the secondary pattern and the pattern regions of the secondary plate are arranged in a two-dimensional array.