Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device
First Claim
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1. A method, comprising:
- detecting a presence of a conductive object in a first area of a sensing device using a first scan of the sensing device, wherein the first area is less than an entire area of the sensing device; and
detecting the presence of the conductive object to determine a position of the conductive object within the first area using a second scan of the first area of the sensing device.
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Abstract
An apparatus and method to reduce an average scan rate to detect a conductive object on a sensing device. The method may include detecting a presence of a conductive object in a first area of a sensing device using a first scan of the sensing device, and detecting the presence of the conductive object to determine a position of the conductive object within the first area using a second scan of the first area of the sensing device. The apparatus may include a plurality of sensor elements coupled to a switch circuit. The switch circuit may include two settings for first and second scans.
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Citations
20 Claims
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1. A method, comprising:
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detecting a presence of a conductive object in a first area of a sensing device using a first scan of the sensing device, wherein the first area is less than an entire area of the sensing device; and
detecting the presence of the conductive object to determine a position of the conductive object within the first area using a second scan of the first area of the sensing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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a plurality of sensor elements to detect a presence of a conductive object on the sensing device; and
a switch circuit coupled to the plurality of sensor elements, wherein the switch circuit is configured to group the plurality of sensor elements into multiple first scan groups and a second scan group. - View Dependent Claims (14, 15, 16, 17)
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18. An apparatus, comprising:
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a plurality of sensor elements of a sensing device;
means for coupling the plurality of sensor elements into first and second scan groups; and
means for determining a position of a presence of a conductive object on the sensing device using the first and second scan groups. - View Dependent Claims (19, 20)
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Specification