Patent ID: 11972074
Assignee: SHARP KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A touch operation detection device that, in a touch panel provided with a plurality of drive lines arranged in parallel, and a plurality of sense lines arranged in parallel and intersecting the plurality of drive lines, inputs an input signal with respect to the plurality of drive lines in parallel and drives the plurality of drive lines, detects an output signal from the plurality of sense lines in parallel, and detects a touch operation made with respect to the touch panel based on a linear element sequence corresponding to a magnitude of a capacitance at each intersection between the plurality of drive lines and the plurality of sense lines calculated based on a matrix operation of an input sequence corresponding to a magnitude of the input signal and an output sequence corresponding to a magnitude of the output signal, the touch operation detection device comprising:
a drive processing circuit that inputs the input signal with respect to the plurality of drive lines;
an output detection processing circuit that detects the output signal that is output from the plurality of sense lines;
a grouping processing circuit that groups the plurality of drive lines into a plurality of groups each having a set grouped number of adjacent drive lines; and
a touch operation detection processing circuit that detects a touch operation made with respect to the touch panel based on the linear element sequence calculated by a matrix operation of the input sequence and the output sequence; wherein
the drive processing circuit inputs the input signal having the same pattern to each of the grouped number of drive lines that have been grouped by the grouping processing circuit.