Two circuit board touch-sensor device
First Claim
1. A method, comprising:
- providing a first circuit board including a sensor array of sensor elements of a touchpad, wherein the first circuit board comprises no active electronic components to measure capacitance; and
detecting a presence of a conductive object on the touchpad of the first circuit board using active electronic components of a second circuit board coupled to the first circuit board.
6 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for detecting a presence of a conductive object on a sensor array of a first circuit board using active electronic components of a second circuit board, which is coupled to the first circuit board. The apparatus may include a first circuit board, which includes a sensor array of sensor elements, and a second circuit board, coupled to the first circuit board, including sensing circuitry to measure capacitance on the sensor array of the first circuit board. The method may include measuring a capacitance on the sensor array using the active electronic components of the second circuit board, and processing the measured capacitance.
215 Citations
37 Claims
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1. A method, comprising:
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providing a first circuit board including a sensor array of sensor elements of a touchpad, wherein the first circuit board comprises no active electronic components to measure capacitance; and detecting a presence of a conductive object on the touchpad of the first circuit board using active electronic components of a second circuit board coupled to the first circuit board. - View Dependent Claims (2, 3)
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4. A method, comprising:
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providing a first circuit board including one or more substrates with a plurality of capacitance sensor elements and interconnecting sensor traces, wherein the first circuit board comprises no active electronic components to measure capacitance; providing a second circuit board, wherein the second circuit board comprises active electronic components to measure capacitance; and coupling the first and second circuit boards. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. An apparatus, comprising:
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a first circuit board including a sensor array of sensor elements of a touchpad; and a second circuit board coupled to the first circuit board, including sensing circuitry to measure capacitance on the sensor array of the first circuit board. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30)
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29. An apparatus, comprising:
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a first circuit board comprising a plurality of capacitance sensor elements; and means for detecting a presence of a conductive object on the plurality of capacitance sensor elements of the first circuit board, wherein the means for detecting the presence of the conductive object is disposed on a second circuit board that is not the first circuit board. - View Dependent Claims (31, 32)
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33. A system, comprising:
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a sensor array of sensor elements disposed on a first circuit board, wherein the first circuit board comprises no active electronic components to detect the presence of a conductive object on the sensor array; a keyboard matrix of conductive traces disposed on the first circuit board; and a second circuit board coupled to the first circuit board, wherein the second circuit comprises active electronic components to detect the presence of the conductive object on the sensor array. - View Dependent Claims (34, 35, 36, 37)
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Specification