US 10,592,027 B2 · State-based touch threshold

Abstract

A touch sensitivity of a touch-sensitive surface can be adjusted based on a state of a device including the touch-sensitive surface. The state of the device can be a first state or a second state. In the first state, for example, the touch sensing system of the device can be programmed to recognize and process a wide range of touch signals including relatively weak touch signals, which may correspond to water, liquid or other unintentional touches. In the second state, for example, the touch detection threshold can be adjusted to better reject water or unintended touches. In some examples, a ratio of measurements captured using the different types of scans of a selected touch node can be used to determine the state of the device.

Claims25

Dependent claims

An electronic device comprising:

a touch-sensitive surface;
and
one or more processors coupled to the touch-sensitive surface configured to:
acquire a first touch image including first measurements from a plurality of touch nodes of the touch-sensitive surface;
acquire a second touch image including second measurements from the plurality of touch nodes of the touch-sensitive surface;
determine a state from a first state and a second state based on at least one of the first measurements and at least one of the second measurements;
in accordance with a determination that the state is the first state, set a first threshold to a first threshold value;
in accordance with a determination that the state is the second state, set the first threshold to a second threshold value different than the first threshold value;
and
determine whether an input patch corresponds to a touch input patch or the non-touch input patch using the first threshold.

7 more elements

Dependencies are inferred from the claim text.

State-based touch threshold

Life of this patent

State-based touch threshold

Life of this patent

Abstract

Claims25