Touch sensor system and method
AssigneeStoneridge Control Devices, Inc.
InventorsLouis R. Lamborghini, Benjamin K. Yuen, Thomas E. Babington
Life of this patent
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Abstract
A touch sensor assembly. The touch sensor assembly may include a housing, at least one touch sensor and a sensor cover. The sensor cover may identify a touch area associated with each touch sensor. The housing may form a water tight cavity for the sensor cover and the touch sensor when coupled to an housing cover. A raised dome may be provided, e.g. on the sensor cover or another element, to provided tactile feed back. LEDs may be provided for illuminating the touch areas and/or sensing ambient light. A controller may control the illumination level of the LEDs in response to sensed ambient light. Adjacent key suppression algorithms are also provided.
Claims13
A method of monitoring a plurality of touch areas of a touch sensor assembly, said method comprising:
- identifying a first signal of a plurality of signals that exceeds a threshold level for a first time interval, each one of said plurality of signals corresponding to a different one of said plurality of touch areas, said first signal corresponding to a first touch area of said plurality of touch areas;
- providing a first output signal associated with said first signal;
- identifying a second signal of said plurality of signals that also exceeds said threshold level for said first time interval, said second signal corresponding to a second touch area of said plurality of touch areas;
- and
- changing said first output signal to a second output signal associated with a simultaneous touching of said first touch area and said second touch area if no other of said plurality of signals exceeds said threshold level for said first time interval.
A method of monitoring a plurality of touch areas of a touch sensor assembly, said method comprising:
- identifying a first signal of a plurality of signals that exceeds a threshold level for a first time interval, each one of said plurality of signals corresponding to a different one of said plurality of touch areas, said first signal corresponding to a first touch area of said plurality of touch areas;
- providing a first output signal associated with said first signal;
- identifying a second signal of said plurality of signals that also exceeds said threshold level for said first time interval, said second signal corresponding to a second touch area of said plurality of touch areas;
- and
- changing said first output signal to a second output signal associated with a simultaneous touching of said first touch area and said second touch area if a reference signal corresponding to a reference electrode does not exceed said threshold level for said first time interval.
Dependencies are inferred from the claim text.