Transcapacitive sensor devices with seams
First Claim
1. A processing system for a transcapacitive sensing device comprising a plurality of sensor electrodes sectioned by a seam, wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes, said processing system comprising:
- a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of said plurality of sensor electrodes;
a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said first SEIC and said second SEIC are configured to operate said plurality of sensor electrodes in synchrony to transmit with said plurality of transmitter electrodes a set of transmitter signals and receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals, wherein said first SEIC comprises a first receiver circuit configured to provide a first value proportional to a first response of said set of responses, and wherein said second SEIC comprises a second receiver circuit configured to provide a second value proportional to a second response of said set of responses; and
memory configured for storing calibration information, said calibration information configured for adjusting said first value to produce a first adjusted value, wherein a first proportionality of said first adjusted value to said first response is substantially equal to a second proportionality of said second value or an adjusted second value to said second response.
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Accused Products
Abstract
A processing system for a transcapacitive sensing device comprises a plurality of sensor electrodes sectioned by a seam, a first sensor electrode integrated circuit, and a second sensor electrode integrated circuit. The plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes. The first sensor electrode integrated circuit is communicatively coupled to a first subset of the plurality of sensor electrodes. The second sensor electrode integrated circuit is communicatively coupled to a second subset of the plurality of sensor electrodes. The first sensor electrode integrated circuit and the second sensor electrode integrated circuit are configured to operate the plurality of sensor electrodes in synchrony to transmit with the plurality of transmitter electrodes a set of transmitter signals and receive with the plurality of receiver electrodes a set of responses corresponding to the set of transmitter signals.
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Citations
18 Claims
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1. A processing system for a transcapacitive sensing device comprising a plurality of sensor electrodes sectioned by a seam, wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes, said processing system comprising:
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a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of said plurality of sensor electrodes; a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said first SEIC and said second SEIC are configured to operate said plurality of sensor electrodes in synchrony to transmit with said plurality of transmitter electrodes a set of transmitter signals and receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals, wherein said first SEIC comprises a first receiver circuit configured to provide a first value proportional to a first response of said set of responses, and wherein said second SEIC comprises a second receiver circuit configured to provide a second value proportional to a second response of said set of responses; and memory configured for storing calibration information, said calibration information configured for adjusting said first value to produce a first adjusted value, wherein a first proportionality of said first adjusted value to said first response is substantially equal to a second proportionality of said second value or an adjusted second value to said second response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a transcapacitive sensing device comprising:
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providing, with a central controller, a synchronization signal to a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of a plurality of sensor electrodes and a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said plurality of sensor electrodes is sectioned by a seam, and wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes; operating said first SEIC and said second SEIC in synchrony with said synchronization signal to transmit with said plurality of transmitter electrodes a set of transmitter signals and to receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals; storing calibration information; producing a first adjusted value by adjusting according to said calibration information a first value proportional to a first response received by the central controller from said first SEIC; and producing a second adjusted value by adjusting according to said calibration information a second value proportional to a second response received by the central controller from said second SEIC, wherein a first proportionality of said first adjusted value to said first response is substantially equal to a second proportionality of said second adjusted value to said second response. - View Dependent Claims (12, 13, 14)
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15. A transcapacitive sensing device comprising:
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a plurality of sensor electrodes sectioned by a seam, wherein said plurality of sensor electrodes comprises a plurality of transmitter electrodes intersecting a plurality of receiver electrodes; and a processing system comprising; a first sensor electrode integrated circuit (SEIC) communicatively coupled to a first subset of said plurality of sensor electrodes; a second sensor electrode integrated circuit (SEIC) communicatively coupled to a second subset of said plurality of sensor electrodes, wherein said first SEIC and said second SEIC are configured to operate said plurality of sensor electrodes in synchrony to transmit with said plurality of transmitter electrodes a set of transmitter signals and receive with said plurality of receiver electrodes a set of responses corresponding to said set of transmitter signals, wherein said first SEIC comprises a first receiver circuit configured to provide a first value proportional to a first response of said set of responses, and wherein said second SEIC comprises a second receiver circuit configured to provide a second value proportional to a second response of said set of responses; and memory configured for storing calibration information, said calibration information configured for adjusting said first value to produce a first adjusted value, wherein a first proportionality of said first adjusted value to said first response is substantially equal to a second proportionality of said second value or an adjusted second value to said second response. - View Dependent Claims (16, 17, 18)
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Specification