Patent ID: 8743067
Filing Date: 2014-06-03
Classification: G06F

Abstract:
1. A touch sensing apparatus, comprising: a logic control module, for generating a plurality of control signals having different control timings, and the plurality of control signals comprising a storage control signal and a decoding control signal; at least one storage control module, coupled to the logic control module, each storage control module comprising a plurality of storage capacitors and respectively storing each of sensed voltages in different storage capacitors at different times according to a storage control timing of the storage control signal, wherein the sensed voltages are analog data sensed from scan lines of an ITO sensor; and at least one decoding control module, coupled to the logic control module and the at least one storage control module, for performing an analog adding process to the sensed voltages stored in the storage capacitors according to a decoding control timing of the decoding control signal to output a decoded analog data with high signal-to-noise ratio; wherein each decoding control module performs the analog adding process by using a charge pump method to add the sensed voltages stored in different storage capacitors to output the decoded analog data with high signal-to-noise ratio.