Patent ID: 9377884
Filing Date: 2016-06-28
CPC Classification: G06F

Claim Text:
1. A method of enabling touch determination based on an output signal from a touch-sensitive apparatus, the touch-sensitive apparatus including a panel, and being configured to conduct signals from a plurality of incoupling points to a plurality of outcoupling points, thereby defining detection lines that extend across a surface portion of the panel between pairs of incoupling and outcoupling points, and including at least one signal generator coupled to the incoupling points to generate the signals, and at least one signal detector coupled to the outcoupling points to generate the output signal which is indicative of one or more objects touching the surface portion, the method comprising, in a sequence of iterations: obtaining, based on the output signal, a current signal value for each detection line; generating a first interaction pattern and a second interaction pattern as a function of the current signal values, such that the first and second interaction patterns are reconstructed two-dimensional distributions of local interaction with the conducted signals across the surface portion; and jointly processing the first and second interaction patterns to determine current touch data representing said one or more objects on the surface portion, the jointly processing including wherein the first and second interaction patterns are generated to represent changes in interaction on different time scales.