Patent ID: 8629358
Filing Date: 2014-01-14
Classification: G06F

Abstract:
1. A method for identifying that an object configured for interacting with a digitizer sensor is hovering over the digitizer sensor, the method comprising: triggering circuitry of the object with a triggering signal to produce a response from the object; detecting the presence of the object in the vicinity of the digitizer sensor from the response of the object as detected from a peak formed by signal outputs obtained from a plurality of sensing elements of the digitizer sensor, wherein each of the plurality of sensing elements is associated with a different area on the digitizer sensor; identifying at least one sensing element providing a highest amplitude signal output from the plurality of sensing elements; characterizing a width of the peak with at least one ratio between amplitude of signal output from the at least one sensing element identified and amplitude of signal output from at least one other sensing element and with a defined distance between the at least one sensing element and the at least one other sensing element; and identifying that the object is hovering based on the characterization of the width by comparing the at least one ratio to a threshold level for hovering, the threshold level associated with the defined distance between the sensing elements.