SWITCHING OPERATION SENSING APPARATUS WITH TOUCH INPUT MEMBER IDENTIFICATION

SWITCHING OPERATION SENSING APPARATUS WITH TOUCH INPUT MEMBER IDENTIFICATION

A switching operation sensing apparatus includes an input operation unit, an oscillation circuit, a frequency digital converter, and a touch detection circuit. The input operation unit includes a first switching member integrally formed with a housing. The oscillation circuit is configured to genera...

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Hauptverfasser: LEE, Jong Woo, RYU, Je Hyuk, KO, Joo Yul, JI, Yong Woon, HONG, Byung Joo
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
PULSE TECHNIQUE
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creator LEE, Jong Woo
RYU, Je Hyuk
KO, Joo Yul
JI, Yong Woon
HONG, Byung Joo
description A switching operation sensing apparatus includes an input operation unit, an oscillation circuit, a frequency digital converter, and a touch detection circuit. The input operation unit includes a first switching member integrally formed with a housing. The oscillation circuit is configured to generate an oscillation signal having a resonant frequency, varying based on a capacitive change or an inductive change, depending on a touch input member in contact with the first switching member during an input operation. The frequency digital converter is configured to convert the oscillation signal into a count value. The touch detection circuit is configured to detect capacitive sensing and inductive sensing based on a slope change of the count value received from the frequency digital converter, and output corresponding touch detection signals of different levels based on the detection.
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subjects BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
PULSE TECHNIQUE
title SWITCHING OPERATION SENSING APPARATUS WITH TOUCH INPUT MEMBER IDENTIFICATION
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