Touch detection device used in water handling equipment, and faucet apparatus including the same
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United States of America Patent
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May 1, 2018
Issued Date -
N/A
app pub date -
Jun 22, 2016
filing date -
Jul 1, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A touch detection device capable of operation by a light touch, and of preventing false operations even when used in water handling equipment includes a sensing portion for sensing contact by a target object; a vibration excitation element attached to this sensing portion, a drive circuit for exciting vibration in the sensing portion, and a contact determining circuit for determining whether a target object is contacting a sensing portion based on vibration of the sensing portion after stopping the application of an AC voltage to the vibration excitation element by this drive circuit.
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International Classification(s)
- H03K:PULSE TECHNIQUE
- G01H:MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC....
- F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
- G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- G06F:ELECTRIC DIGITAL DATA PROCESSING
- E03C:DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR....
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