Hard press rejection
AssigneeCypress Semiconductor Corporation
InventorsPetro Ksondzyk, Jae-Bum Ahn
Life of this patent
Estimating the term…
Abstract
Techniques for hard press rejection are described herein. In an example embodiment, a touch area on a sensor array is determined, where the touch area corresponds to a detected object and is associated with multiple signal values. A slope value for the detected object is computed based on a ratio of a signal distribution value in the touch area to a metric indicating a size of the touch area with respect to the sensor array. The slope value is compared to a threshold in order to determine whether to accept or to reject the detected object, and the detected object is rejected based on the comparison.
Claims20
A method for hard press rejection, the method comprising:
- accessing a set of signal values representing an object that is detected on a sensor array during a scan operation;
- determining a touch area corresponding to the detected object on the sensor array, wherein the touch area is associated with multiple signal values from the set of signal values;
- computing a slope value for the detected object based on a ratio of a signal distribution value in the touch area to a metric indicating a size of the touch area with respect to the sensor array;
- and
- rejecting the detected object based at least on a comparison of the slope value to a threshold.
A non-transitory firmware storing a set of instructions that comprise firmware instructions which, when executed by a computing device, cause the computing device to perform operations comprising:
- accessing a set of signal values representing an object that is detected on a sensor array during a scan operation;
- determining a touch area corresponding to the detected object on the sensor array, wherein the touch area is associated with multiple signal values from the set of signal values;
- computing a slope value for the detected object based on a ratio of a signal distribution value in the touch area to a metric indicating a size of the touch area with respect to the sensor array;
- and
- rejecting the detected object based at least on a comparison of the slope value to a threshold.
Dependencies are inferred from the claim text.