Patent ID: 9746960
Date: 2017-08-29
CPC Classifications: G06F

Claim:
1. A method operable in a touch-sensitive apparatus for measuring noise, wherein the touch-sensitive apparatus comprises a touch-sensitive module having a plurality of first electrodes and a plurality of second electrodes that intersect in multiple regions of the touch sensitive module, said method comprising the steps of: disconnecting the first electrodes from a driving voltage source; acquiring a plurality of voltage values of noise by measuring a plurality of voltage signals associated with the second electrodes over a plurality of measurement cycles at a predetermined operating frequency during no driving voltage supplied to the first electrodes; and calculating respectively an evaluation of noise corresponding with each of designed measurement modes according to the acquired voltage values of noise, wherein each designed measurement mode corresponds to a combination of a plurality of forward operations and a plurality of reverse operations, and the number of the plurality of measurement cycles is M*N*K where N represents the number of the plurality of designed measurement modes, M represents the number of cycles to be performed for each mode, and K presents the number of measurement cycles taken for average.