EP0474232A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Transparent touch-sensitive panel

Assignee: Sharp Corp

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Filing: 1991-09-05

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Granted: —

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Expires: 2011-09-05

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Abstract

Abstract A signal input device which includes an operation panel (8) having an input area in which data are input by touching the operation panel, a plurality of sensors (S₁ to S₄) located at different places on the operation panel, the sensors receiving vibrations propagated from a touched point on the operation panel, a detection circuit (C₁ to C₄) for detecting times at which the sensors receive the vibrations, an arithmetic means (45) for identifying the position of the touched point, a memory means (46) for storing numerical values whereby the input area is divided into a plurality of minor areas, and means (47,45) for judging which minor areas the touched points belong to, on the basis of the arithmetic results of the numerical values and data about the positions of the touched points.Used as editing panel in a copying apparatus.

Inventors

👤 Yoshihisa Miwa
👤 Shunju Anzai
👤 Hideo Matsuda
👤 Takashi Kubo
👤 Toshiki Ohgita

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-10-26 17:16

CPC Classifications

G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G03; G03G; G03G15/00; G03G15/50; G03G15/5016; G06F3/041; G06F3/043

Claims Analysis

Total Claims: 3

Claim 1

Independent Claim 132 words

A signal input device comprising an operation panel (8) including an input area in which data are input by touching the operation panel, a plurality of sensors (S₁ to S₄) located at different places on the operation panel, the sensors receiving vibrations propagated from a touched point on the operation panel, a detection circuit (C₁ to C₄) for detecting times at which the sensors receive the vibrations, an arithmetic means (45) for identifying the position of the touched point, a memory means (46) for storing numerical values whereby the input area is divided into a plurality of minor areas, and means (45,47) for judging which minor areas the touched points belong to, on the basis of the arithmetic results of the numerical values and data about the positions of the touched points.

Claim 2

Dependent Claim 191 words

A signal input device comprising a transparent glass panel (1) a first area (2) in which an original (3) is placed and a second area (8) in which the original is not placed, a plurality of sensors (S₁ to S₄) located at the second area the sensors receiving vibrations propagated from a touched point on the glass panel, a detection circuit (C₁ to C₄) for detecting times at which the sensors receive the vibrations, an arithmetic means (45) for identifying the position of the touched point on the basis of the detected times, a memory means (46) for storing the second area of the glass panel as an input area for allowing copying data to be input, means (47,45) for judging to see whether the position of a touched point identified by the arithmetic means is in the first area or not, on the basis of the data stored in the memory means, and a control means for using the result obtained by the judging means as input about the original when it arises from the first area or as input about copying data when it arises from the second area.

Claim 3

Dependent Claim 164 words

A signal input device for use in a copying machine, the device comprising an operation panel having an input area allowing a touched input therein, a plurality of sensors located at different places on the operation panel, the sensors receiving vibrations propagated from a touched point on the operation panel, a detection circuit for detecting times at which the sensors receive the vibrations, an arithmetic means for identifying the position of the touched point on the basis of the detected times, a memory means for storing numerical values whereby the input area is divided into a plurality of minor areas, means for judging which minor areas the touched points belong to, on the basis of the arithmetic results of the numerical values and data about the positions of the touched points, wherein the arithmetic means comprises means for starting the arithmetic operation by treating the received times detected by the detection circuit as effective, when the copying machine is in a stable operation state.

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