Discerning between substances
First Claim
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1. A processing device implemented method comprising:
- detecting a presence of a material at a sensing device;
wherein the sensing device comprises a first capacitive sensor configured to detect the presence of the material and an environmental effect on the sensing device, and a second capacitive sensor configured to detect the environmental effect on the sensing device; and
determining whether the material is a first material having a first material property or a second material having a second material property.
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Abstract
A method and apparatus to detect the presence of a material at a sensing device and to determine whether the material is a first material having a first material property or a second material having a second material property.
21 Citations
23 Claims
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1. A processing device implemented method comprising:
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detecting a presence of a material at a sensing device; wherein the sensing device comprises a first capacitive sensor configured to detect the presence of the material and an environmental effect on the sensing device, and a second capacitive sensor configured to detect the environmental effect on the sensing device; and determining whether the material is a first material having a first material property or a second material having a second material property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic system comprising:
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a processing device configured to receive signals from a sensing device, the processing device to determine whether a material present at the sensing device is a first material having a first material property or a second material having a second material property; a first capacitive sensor configured to detect the presence of the material and an environmental effect on the sensing device; and a second capacitive sensor configured to detect the environmental effect on the sensing device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
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means for detecting a presence of a material near a sensing device; and
means for determining whether the material is a first material having a first material property or a second material having a second material property;means for detecting the presence of the material and an environmental effect on the sensing device; and means for detecting the environmental effect on the sensing device. - View Dependent Claims (21, 22, 23)
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Specification