Face detection with transcapacitive sensing
AssigneeSynaptics Incorporated
InventorsTyler Moore, Derek Solven
Life of this patent
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Abstract
A processing system configured to detect large objects includes a sensor module with sensor circuitry coupled to transmitter electrodes and receiver electrodes, and configured to transmit transmitter signals with the transmitter electrode and receive resulting signals with the receiver electrodes, the resulting signals including effects corresponding to transmitter signals. The processing system further includes a determination module configured to determine a transition condition is present using a capacitive image, based on the resulting signals, having capacitive pixel values, and operate in large object mode based on the transition condition being present.
Claims20
A processing system configured to detect large objects, comprising:
- a sensor module comprising sensor circuitry coupled to a plurality of transmitter electrodes and a plurality of receiver electrodes, wherein the sensor module is configured to transmit transmitter signals with the plurality of transmitter electrode and receive resulting signals with the plurality of receiver electrodes, and wherein the resulting signals comprise effects corresponding to transmitter signals;
- and
- a determination module configured to:
- determine a transition condition is present based on a first capacitive image, wherein the first capacitive image is based on the resulting signals, and wherein the first capacitive image comprises a first plurality of capacitive pixel values;
- and
- operate in a large object mode based on the transition condition being present.
A method for detecting large objects using a processing system, comprising:
- driving transmitter signals onto a plurality of transmitter sensor electrodes;
- receiving resulting signals with a plurality of receiver sensor electrodes;
- determining a transition condition is present based on a first capacitive image, wherein the first capacitive image is based on the resulting signals, and wherein the first capacitive image comprises a first plurality of capacitive pixel values;
- and
- operating in a large object mode based on the transition condition being present.
An input device for detecting large objects, comprising:
- a plurality of transmitter electrodes;
- a plurality of receiver electrodes,
- a processing system, the processing system coupled to the plurality of transmitter electrodes and the plurality of receiver electrodes, the processing system configured to:
- drive transmitter signals onto a plurality of transmitter sensor electrodes;
- receive resulting signals with a plurality of receiver sensor electrodes;
- determine a transition condition is present based on a first capacitive image, wherein the first capacitive image is based on the resulting signals, and wherein the first capacitive image comprises a first plurality of capacitive pixel values;
- and
- operate in a large object mode based on the transition condition being present.
Dependencies are inferred from the claim text.