US Patent 11086443 Touch apparatus, touch driving device and operation method thereof

A touch apparatus, a touch driving device and an operation method are provided. The touch driving device includes a first routing circuit, a second routing circuit, and a processing circuit. The first routing circuit connects a first current electrode of first sensing electrodes to a first common terminal of the first routing circuit. The second routing circuit connects a second current electrode of second sensing electrodes to a second common terminal of the second routing circuit. The same input terminal of the processing circuit is coupled to the first common terminal and the second common terminal. In the case where a touch sensing result corresponding to the input terminal indicates that a touch event has occurred, the processing circuit checks whether the touch event also occurs on an adjacent sensing electrode adjacent to the first current electrode to determine whether the touch event occurs on the first current electrode.