Face detection with transcapacitive sensing
First Claim
1. 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 an average pixel value of a first plurality of capacitive pixel values in a first capacitive image, wherein the first capacitive image is based on the resulting signals;
determine a maximum pixel value of the first plurality of capacitive pixel values;
determine a transition condition is present based on the first capacitive image, wherein the transition condition is based on the average pixel value satisfying an average pixel value threshold, and that the maximum pixel value is less than a maximum pixel value threshold; and
operate in a large object mode based on the transition condition being present.
3 Assignments
0 Petitions
Accused Products
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.
-
Citations
17 Claims
-
1. 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 an average pixel value of a first plurality of capacitive pixel values in a first capacitive image, wherein the first capacitive image is based on the resulting signals; determine a maximum pixel value of the first plurality of capacitive pixel values; determine a transition condition is present based on the first capacitive image, wherein the transition condition is based on the average pixel value satisfying an average pixel value threshold, and that the maximum pixel value is less than a maximum pixel value threshold; and operate in a large object mode based on the transition condition being present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. 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 an average pixel value of a first plurality of capacitive pixel values in a first capacitive image, wherein the first capacitive image is based on the resulting signals; determining a maximum pixel value of the first plurality of capacitive pixel values; determining a transition condition is present based on the first capacitive image, wherein the transition condition is based on the average pixel value satisfying an average pixel value threshold, and that the maximum pixel value is less than a maximum pixel value threshold; and operating in a large object mode based on the transition condition being present. - View Dependent Claims (10, 11, 12)
-
-
13. 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 an average pixel value of a first plurality of capacitive pixel values in a first capacitive image, wherein the first capacitive image is based on the resulting signals; determine a maximum pixel value of the first plurality of capacitive pixel values; determine a transition condition is present based on the first capacitive image, wherein the transition condition is based on the average pixel value satisfying an average pixel value threshold, and that the maximum pixel value is less than a maximum pixel value threshold; and operate in a large object mode based on the transition condition being present. - View Dependent Claims (14, 15, 16, 17)
-
Specification