Abstract: Touch events are detected on a touch sensing surface coupled to a capacitive sense array and one or more force electrodes. During a plurality of scan cycles, a plurality of capacitive sense signals and one or more force signals are obtained from capacitive sense electrodes of the capacitive sense array and the one or more force electrodes, respectively, and applied to determine a temporal sequence of touches on the touch sensing surface. For each touch of the temporal sequence of touches, a touch location on the touch sensing surface is identified based on the capacitive sense signals, and a force value associated with force applied at the touch location is determined based on the force signals. A gesture associated with the temporal sequence of touches is thereby identified based on the touch locations and the force values of the temporal sequence of touches.

Abstract: This application is directed to detecting touch events on a touch sensing surface coupled to a capacitive sense array and one or more force electrodes. The capacitive sense array includes a plurality of sense electrodes configured to provide a plurality of capacitive sense signals. The force electrodes are configured to provide one or more force signals. A subset of sense electrodes are determined to be associated with a candidate touch based on the capacitive sense signals and their associated baseline values. When force associated with the force signals is below a predetermined force threshold, the candidate touch is determined as an invalid touch (e.g., coverage by a water drop on an area of the touch sensing surface corresponding to the subset of sense electrodes). Baseline values are adjusted for the subset of sense electrodes for determining subsequent touch events associated with the subset of sense electrodes.

Abstract: This application is directed to detecting touch events on a touch sensing surface coupled to a capacitive sense array and one or more force sensors. The capacitive sense array includes a plurality of sense electrodes configured to provide a plurality of capacitive sense signals. The force electrodes are configured to provide one or more force signals. In accordance with the capacitive sense signals, one or more candidate touches are detected on the touch sensing surface, and the detected candidate touches include a first candidate touch. When it is determined that force associated with the one or more force signals is associated with a grip on an edge area of the touch sensing surface, the first candidate touch is associated with the grip on the edge area of the touch sensing surface, and is designated as an invalid touch.

Abstract: The various implementations described herein include methods, devices, and systems for detecting touch inputs. In one aspect, a device includes: (1) a touch surface; (2) a plurality of sense electrodes coupled to the touch surface and configured to sense capacitance of a touch input; (3) one or more force electrodes coupled to the touch surface and configured to sense force of the touch input; and (4) a sensing module configured to: (a) determine capacitance of at least a subset of the plurality of sense electrodes; (b) determine force of at least one of the one or more force electrodes; and (c) if the capacitance meets one or more first predefined criteria indicative of a touch input and if force meets one or more second predefined criteria indicative of a touch input, determine that the touch input is present on the touch-sensitive surface.

Abstract: The various implementations described herein include methods, devices, and systems for detecting touch inputs. In one aspect, a device includes: (1) a touch surface; (2) a plurality of sense electrodes configured to sense capacitance of a touch input; (3) one or more force electrodes configured to sense force of the touch input; and (4) a sensing module configured to: (a) determine a first capacitance; (b) determine whether the first capacitance exceeds an adaptive threshold; (c) if the first capacitance does not exceed the adaptive threshold, determine a force; (d) if the force meets one or more predefined criteria indicative of a touch input, lower the adaptive threshold; (e) determine a second capacitance; (f) determine whether the second capacitance exceeds the lowered threshold; and (g) if the second capacitance exceeds the lowered threshold, determine that the touch input is present on the touch surface.

Abstract: The various implementations described herein include methods, devices, and systems for detecting touch inputs. In one aspect, a device includes: (1) a touch surface; (2) a plurality of sense electrodes configured to sense capacitance of a touch input; (3) one or more force electrodes configured to sense force of the touch input; and (4) a sensing module configured to: (a) determine a first capacitance; (b) determine whether the first capacitance exceeds an adaptive threshold; (c) if the first capacitance does not exceed the adaptive threshold, determine a force; (d) if the force meets one or more predefined criteria indicative of a touch input, lower the adaptive threshold; (e) determine a second capacitance; (f) determine whether the second capacitance exceeds the lowered threshold; and (g) if the second capacitance exceeds the lowered threshold, determine that the touch input is present on the touch surface.

Abstract: The various implementations described herein include methods, devices, and systems for detecting touch inputs. In one aspect, a device includes: (1) a touch surface; (2) a plurality of sense electrodes coupled to the touch surface and configured to sense capacitance of a touch input; (3) one or more force electrodes coupled to the touch surface and configured to sense force of the touch input; and (4) a sensing module configured to: (a) determine capacitance of at least a subset of the plurality of sense electrodes; (b) determine force of at least one of the one or more force electrodes; and (c) if the capacitance meets one or more first predefined criteria indicative of a touch input and if force meets one or more second predefined criteria indicative of a touch input, determine that the touch input is present on the touch-sensitive surface.

Abstract: This application is directed to detecting touch events on a touch sensing surface coupled to a capacitive sense array and one or more force electrodes. The capacitive sense array includes a plurality of sense electrodes configured to provide a plurality of capacitive sense signals. The force electrodes are configured to provide one or more force signals. A subset of sense electrodes are determined to be associated with a candidate touch based on the capacitive sense signals and their associated baseline values. When force associated with the force signals is below a predetermined force threshold, the candidate touch is determined as an invalid touch (e.g., coverage by a water drop on an area of the touch sensing surface corresponding to the subset of sense electrodes). Baseline values are adjusted for the subset of sense electrodes for determining subsequent touch events associated with the subset of sense electrodes.

Abstract: Touch events are detected on a touch sensing surface coupled to a capacitive sense array and one or more force electrodes. During a plurality of scan cycles, a plurality of capacitive sense signals and one or more force signals are obtained from capacitive sense electrodes of the capacitive sense array and the one or more force electrodes, respectively, and applied to determine a temporal sequence of touches on the touch sensing surface. For each touch of the temporal sequence of touches, a touch location on the touch sensing surface is identified based on the capacitive sense signals, and a force value associated with force applied at the touch location is determined based on the force signals. A gesture associated with the temporal sequence of touches is thereby identified based on the touch locations and the force values of the temporal sequence of touches.

Abstract: This application is directed to detecting touch events on a touch sensing surface coupled to a capacitive sense array and one or more force sensors. The capacitive sense array includes a plurality of sense electrodes configured to provide a plurality of capacitive sense signals. The force electrodes are configured to provide one or more force signals. In accordance with the capacitive sense signals, one or more candidate touches are detected on the touch sensing surface, and the detected candidate touches include a first candidate touch. When it is determined that force associated with the one or more force signals is associated with a grip on an edge area of the touch sensing surface, the first candidate touch is associated with the grip on the edge area of the touch sensing surface, and is designated as an invalid touch.