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Patent Searching and Data


Title:
POSITION DETECTOR
Document Type and Number:
Japanese Patent JPS5890234
Kind Code:
A
Abstract:

PURPOSE: To increase the detecting accuracy and at the same time to decrease the power consumption for a flat plate type position detector, by detecting the potential of a conductive electrode which is in contact with plural thin electrode elements and ten detecting the pressed position.

CONSTITUTION: An electrode plate 6 is formed in a plane form by laminating alternately the thin electrode elements 3-1W3-n and 5-1W5-n and the thin insulated members 4-1W4-n. A conductive plate 7 is in close contact with the plate 6. Then the different potentials are applied to those thin electrode elements respectively by means of a means such as a resistance voltage dividing circuit, etc. Thus the potential of the thin electrode element is transmitted to the plate 7 at the pressed area and only when pressure is applied. The pressed position is detected by detecting the potential of the plate 7. As a result, the equipotential line distribution can be set at each part within the position detecting surface in an accurate, parallel and even way.


Inventors:
KITAMURA NOBUO
SHIKAKURA KUNIO
SAKANO AKIO
YOSHIDA KIMIYOSHI
TAMARU EIJI
Application Number:
JP18721481A
Publication Date:
May 28, 1983
Filing Date:
November 22, 1981
Export Citation:
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Assignee:
SONY CORP
International Classes:
G06F3/045; G01B7/00; G06F3/033; (IPC1-7): G01B7/00; G06F3/03; G06K11/06
Attorney, Agent or Firm:
Sadaaki Kambara