Capacitive Proximity Sensor With User

A sensing system for sensing the proximity of a part of a user to a control input, such as a control panel ( 14 ), for a vehicle subsystem ( 10 ), includes a transmitter ( 26 ) for transmitting a signal, a primary receivers ( 22 ) for receiving the signal via the user as a primary signal and a refer...

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Hauptverfasser: PARKINSON RICHARD D, THORP IAN R, PICKERING CARL A
Format: Patent
Sprache:eng
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Zusammenfassung:A sensing system for sensing the proximity of a part of a user to a control input, such as a control panel ( 14 ), for a vehicle subsystem ( 10 ), includes a transmitter ( 26 ) for transmitting a signal, a primary receivers ( 22 ) for receiving the signal via the user as a primary signal and a reference receiver ( 28 ) for receiving the signal via the user as a reference signal. One of the transmitter and primary receiver is associated with the user and the other with the control input ( 14 ). The reference receiver ( 28 ) is associated with the user and a controller ( 12 ) is provided to receive and process the primary and reference signals to provide a measure of the proximity between the part of the user and the control input ( 14 ).