Underwater non-conductive touch tracking
First Claim
1. A method, comprising:
- at an electronic device having at least one processor and a capacitive sense array that includes a plurality of sensor electrodes;
detecting submersion of at least a portion of the capacitive sense array, including detecting increased electrode responses from at least a subset of the plurality of sensor electrodes that exceed a predetermined electrode response criterion;
normalizing the capacitive sense array to form a substantially uniform baseline response across at least the submerged portion of the capacitive sense array;
identifying one or more subsequent electrode responses from the submerged portion of the capacitive sense array that differ from the substantially uniform baseline response by at least a threshold amount; and
inverting the one or more subsequent electrode responses such that negative electrode responses are inverted into positive electrode responses relative to the normalized uniform baseline response and positive electrode responses are inverted into negative electrode responses relative to the normalized uniform baseline response.
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Accused Products
Abstract
The various implementations described herein include systems, methods and/or devices used to enable underwater non-conductive touch tracking. An exemplary method is performed at a touch sensitive device and includes: detecting submersion of a capacitive sense array (CSA), including detecting increased electrode responses from at least a subset of a plurality of sensor electrodes of the CSA that exceed a predetermined electrode response criterion. The method further includes: (1) identifying one or more normalization factors for the CSA based on the detected increased electrode responses from the subset of the plurality of sensor electrodes, and (2) normalizing, using the one or more normalization factors, the CSA to form a substantially uniform baseline response across the CSA. The method further includes during the submersion, and subsequent to the normalizing, identifying one or more subsequent electrode responses that differ from the substantially uniform baseline response by at least a threshold amount.
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Citations
22 Claims
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1. A method, comprising:
at an electronic device having at least one processor and a capacitive sense array that includes a plurality of sensor electrodes; detecting submersion of at least a portion of the capacitive sense array, including detecting increased electrode responses from at least a subset of the plurality of sensor electrodes that exceed a predetermined electrode response criterion; normalizing the capacitive sense array to form a substantially uniform baseline response across at least the submerged portion of the capacitive sense array; identifying one or more subsequent electrode responses from the submerged portion of the capacitive sense array that differ from the substantially uniform baseline response by at least a threshold amount; and inverting the one or more subsequent electrode responses such that negative electrode responses are inverted into positive electrode responses relative to the normalized uniform baseline response and positive electrode responses are inverted into negative electrode responses relative to the normalized uniform baseline response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a capacitive sense array that includes a plurality of sensor electrodes; and a processing device coupled to the capacitive sense array, the processing device configured to; detect submersion of at least a portion of the capacitive sense array, including detecting increased electrode responses from at least a subset of the plurality of sensor electrodes that exceed a predetermined electrode response criterion; normalize the capacitive sense array to form a substantially uniform baseline response across at least the submerged portion of the capacitive sense array; identify one or more subsequent electrode responses from the submerged portion of the capacitive sense array that differ from the substantially uniform baseline response by at least a threshold amount; and invert the one or more subsequent electrode responses such that negative electrode responses are inverted into positive electrode responses relative to the normalized uniform baseline response and positive electrode responses are inverted into negative electrode responses relative to the normalized uniform baseline response. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A non-transitory computer readable storage medium, storing one or more programs configured for execution by one or more processors of a sensing system, the one or more programs including instructions, which when executed by the one or more processors cause the sensing system to:
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detect submersion of at least a portion of a capacitive sense array, including detecting increased electrode responses from at least a subset of a plurality of sensor electrodes of the capacitive sense array that exceed a predetermined electrode response criterion; normalize the capacitive sense array to form a substantially uniform baseline response across at least the submerged portion of the capacitive sense array; identify one or more subsequent electrode responses from the submerged portion of the capacitive sense array that differ from the substantially uniform baseline response by at least a threshold amount; and invert the one or more subsequent electrode responses such that negative electrode responses are inverted into positive electrode responses relative to the normalized uniform baseline response and positive electrode responses are inverted into negative electrode responses relative to the normalized uniform baseline response. - View Dependent Claims (19, 20, 21)
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22. A method comprising:
at an electronic device having at least one processor and a capacitive sense array that includes a plurality of sensor electrodes; detecting submersion of at least a portion the capacitive sense array, including detecting increased electrode responses from at least a subset of the plurality of sensor electrodes that exceed a predetermined electrode response criterion; inverting the increased electrode responses such that positive electrode responses are inverted into negative electrode responses; normalizing the capacitive sense array to form a substantially uniform baseline response across at least the submerged portion of the capacitive sense array; and identifying one or more subsequent electrode responses from the submerged portion of the capacitive sense array that differ from the substantially uniform baseline response by at least a threshold amount.
Specification