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. 14, 1997
Filed:
Oct. 25, 1994
Applicant:
Inventor:
David W Caldwell, Lapeer, MI (US);
Assignee:
Integrated Controls, Lapeer, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
200600 ; 341 33 ;
Abstract
A low impedance touch sensor detects manual contact of a dielectric substrate by a human user. The touch sensor includes a first conductive electrode pad having a closed, continuous geometric form and a second conductive electrode which substantially co-planarly surrounds the first electrode and is spaced from the first electrode by a channel. The first and second electrodes are disposed on the same surface of the substrate. An active electrical component, such as a transistor is located on the substrate proximate the first and second electrodes, and is electrically coupled to the first and second electrodes.
Published as:
CA2203695A1; WO9613098A1; AU4134596A; US5594222A; EP0795233A1; EP0795233A4; MX9703068A; CN1220786A; AU706850B2; NZ296672A; JP2001503205A; EP1204209A1; EP0795233B1; CA2203695C; ATE221708T1; DE69527646D1; DK0795233T3; HK1045224A1; ES2179890T3; DE69527646T2; CN1155154C; EP1204209B1; ATE276606T1; DE69533529D1; DK1204209T3; ES2227330T3; HK1045224B; DE69533529T2; JP2006085741A; JP3798428B2;