Abstract: A touch panel device includes a touch panel and a controller. The touch panel includes a first region and a second region. The first region includes a plurality of first driving conductors extended along a first direction, and a plurality of first sensing conductors extended along a second direction perpendicular to the first direction. The second region includes a plurality of second driving conductors extended along the first direction, and a plurality of second sensing conductors extended along the second direction. The controller is used for outputting a plurality of driving signals in an ordered sequence of the second direction to drive the plurality of first driving conductors and the plurality of second driving conductors, and for receiving a plurality of sensing signals from the plurality of first sensing conductors and the plurality of second sensing conductors in an ordered sequence of the first direction.

Abstract: A touch panel includes a first substrate, first conductive circuits, second conductive circuits, and a shield circuit. The first conductive circuits are disposed on a first surface of the first substrate. Each of the first conductive circuits includes first electrodes. The second conductive circuits are disposed on the second first substrate. Each of the second conductive circuits includes second electrodes. The shield circuit is disposed on the second surface of the first substrate. The shield circuit for blocking out noise includes a transparent conducting layer and a conductive ring disposed on the transparent conducting layer. The conductive ring is electrically connected to a voltage supply.

Abstract: An electronic device includes a touch panel, a driving circuit, and a sensing circuit. The driving circuit generates a driving signal, and superposes phase information on the driving signal. The touch panel includes multiple crossing conductors, for providing a sensing signal in response to a contact of an object on one of the sensing conductors and to a driving signal applied on the sensing element. The sensing circuit includes a signal extractor and a tag detector. The signal extractor generates a demodulation signal based on the period of the driving signal, width of the phase information, and for demodulating the sensing signal by using the demodulation signal to determine a sensing value. The tag detector enables the signal extractor as soon as a magnitude of the sensing signal is over a predetermined threshold. The signal demodulates the sensing signal by using a demodulation signal whose period is the same as the driving signal to determine the sensing value.

Abstract: An electronic device includes a touch panel, a driving circuit, and a sensing circuit. The driving circuit generates a driving signal, and superposes phase information on the driving signal. The touch panel includes multiple crossing conductors, for providing a sensing signal in response to a contact of an object on one of the sensing conductors and to a driving signal applied on the sensing element. The sensing circuit includes a signal extractor and a tag detector. The signal extractor generates a demodulation signal based on the period of the driving signal, width of the phase information, and for demodulating the sensing signal by using the demodulation signal to determine a sensing value. The tag detector enables the signal extractor as soon as a magnitude of the sensing signal is over a predetermined threshold. The signal demodulates the sensing signal by using a demodulation signal whose period is the same as the driving signal to determine the sensing value.

Abstract: A system for detecting the processing speed of an integrated circuit (IC) includes a flip-flop, a delay module, and a judge unit. The flip-flop receives a clock signal as a trigger signal and generates an inverted output signal. The delay module receives the inverted output signal, adjusts the delay time of the inverted output signal according to a selection signal, and outputs a delay signal to the flip-flop to have the flip-flop generate the output signal. The judge unit receives the output signal and generates a judge signal, which is enabled when the clock period of the output signal is longer than that of the clock signal.