Abstract: A touch sensing apparatus for accelerating a sensing signal processing operation is provided. The touch sensing apparatus includes a plurality of sets of horizontal sensing lines, a plurality of sets of vertical sensing lines, a plurality of processing circuits, and a plurality of sensing units. The plurality of sensing units output a plurality of sets of horizontal and vertical sensing signals via the plurality of sets of horizontal and vertical sensing lines respectively. Each processing circuit is coupled to corresponding sets of horizontal and vertical sensing lines.

Abstract: Multipoint tracking is performed by receiving raw data of an image, calculating line average values for a plurality of lines of the raw data, filtering the raw data according to the line average values to generate filtered data, performing a dilation algorithm on the filtered data to generate dilated data, performing an erosion algorithm on the dilated data to generate eroded data, performing edge detection on the eroded data for identifying touch regions of the raw data, performing a labeling algorithm on the touch regions, calculating centers of gravity for the touch regions, and generating a multipoint tracking result according to the centers of gravity.

Abstract: For a multitouch input configuration, tracking touch inputs includes calculating a first center position corresponding to two touch points along a first axis for a first frame, detecting variation of the first center position from the first frame to a second frame, and determining a gesture type according to the variation of the first center position.

Abstract: Multipoint tracking is performed by receiving raw data of an image, calculating line average values for a plurality of lines of the raw data, filtering the raw data according to the line average values to generate filtered data, performing a dilation algorithm on the filtered data to generate dilated data, performing an erosion algorithm on the dilated data to generate eroded data, performing edge detection on the eroded data for identifying touch regions of the raw data, performing a labeling algorithm on the touch regions, calculating centers of gravity for the touch regions, and generating a multipoint tracking result according to the centers of gravity.

Abstract: A touch sensing apparatus for accelerating a sensing signal processing operation is provided. The touch sensing apparatus includes a plurality of sets of horizontal sensing lines, a plurality of sets of vertical sensing lines, a plurality of processing circuits, and a plurality of sensing units. The plurality of sensing units output a plurality of sets of horizontal and vertical sensing signals via the plurality of sets of horizontal and vertical sensing lines respectively. Each processing circuit is coupled to corresponding sets of horizontal and vertical sensing lines.

Abstract: A touch panel circuitry, which is coupled to a controller, comprises a plurality of electrode strips and a plurality of conductive traces. The electrode strip configured to provide touch signals has two strip ends. The conductive trace is configured for electrically coupling the two strip ends of the corresponding electrode strip so as to form a closed loop circuit. Each conductive trace is also connected to the controller to transmit signals generated by the corresponding electrode strip.