Patent application number | Description | Published |
20100214255 | Energy-efficient Touch Panel Device and Related Method - An energy-efficient touch panel control device includes a touch panel, a buffer memory, an interrupt initiation unit, for outputting an interrupt signal, an analog to digital conversion unit, for converting analog output voltage to digital trace data and storing the digital trace data in the buffer memory, and according to a control signal, switching an operating mode, an operation unit, generating a detecting result according to the digital trace data, switching the operating mode according to the control signal, a mode control unit, for generating the control signal according to the interrupt signal, and a host interface unit. | 08-26-2010 |
20100253639 | METHOD OF DETECTING A TOUCH EVENT FOR A TOUCH PANEL AND RELATED DEVICE - A method of detecting a touch event for a touch panel which comprises a plurality of intersecting traces. The method includes outputting a charge control signal to a trace of the plurality of traces, and keeping other traces except for the trace floating and determining whether the touch event happens according to a voltage signal on the trace. | 10-07-2010 |
20110001491 | CAPACITANCE MEASUREMENT CIRCUIT AND METHOD - A capacitance measurement circuit and method are provided. A storage capacitor is pre-charged. Charge transfer is performed between an under-test capacitor and the storage capacitor. The storage capacitor is discharged and charged according to a relationship between a voltage of the storage capacitor and a reference voltage. The capacitance of the under-test capacitor is measured according to the voltage on the storage capacitor. | 01-06-2011 |
20110273192 | CAPACITANCE MEASUREMENT DEVICE FOR A TOUCH CONTROL DEVICE - A capacitance measurement device includes a charging control unit for charging a measured capacitor, a discharging control unit for discharging the measured capacitor, a first switch coupled to the measured capacitor and the charging control unit for controlling a connection between the measured capacitor and the charging control unit according to a first switching signal, a second switch coupled to the measured capacitor and the discharging control unit for controlling a connection between the measured capacitor and the discharging control unit according to a second switching signal, a first A/D converter coupled to the measured capacitor for converting a voltage signal on the measured capacitor into a first signal, and a duty cycle detecting circuit coupled to the measured capacitor for converting the voltage signal on the measured capacitor into a count value that represents the capacitance of the measured capacitor and outputting the count value to a processing unit. | 11-10-2011 |
20110273193 | TOUCH DETECTION METHOD AND RELATED TOUCH CONTROL DEVICE - A touch detection method for a touch control device including a touch panel includes examining whether a charging capacity for charging a measured capacitor of the touch panel and a discharging capacity for discharging the measured capacitor are determined; charging and discharging the measured capacitor by using the charging capacity and the discharging capacity when the charging capacity and the discharging capacity are determined and receiving a count value representing the capacitance of the measured capacitor, examining whether a base count value is set, calculating a difference between the count value and the base count value when the base count value is set, for determining whether the touch panel is touched, examining whether the count value is in a predetermined range, and performing a charging and discharging capacity setting process when the count value is out of the predetermined range, for adjusting the charging capacity and the discharging capacity. | 11-10-2011 |
20120105372 | Energy-efficient Touch Panel Device and Related Method - An energy-efficient touch panel control device includes a touch panel, a buffer memory, an analog to digital conversion unit, for converting analog output voltage to digital trace data and storing the digital trace data in the buffer memory, and according to a control signal, switching an operating mode, an operation unit, generating a detecting result according to the digital trace data, switching the operating mode according to an interrupt signal, and including a mode control unit, for generating the control signal according to the interrupt signal, and a host interface unit. | 05-03-2012 |
20120249446 | TOUCH-SENSING APPARATUS - A touch-sensing apparatus including a touch panel and a touch-sensing controller is provided. The touch panel includes a plurality of touch blocks. Each of the touch blocks includes a first portion and a second portion. The touch-sensing controller includes a driving line and a plurality of sensing lines. The driving line is coupled to the first portions of the touch blocks, and the sensing lines are respectively coupled to the second portions of the touch blocks. The touch-sensing controller outputs a driving signal to the first portions through the driving line and receives a plurality of sensing signals generated by the second portions according to the driving signal through the sensing lines, so as to determine a touch coordinates corresponding to one of the touch blocks. | 10-04-2012 |
20130271420 | TOUCH CONTROL APPARATUS AND TOUCH DETECTION METHOD THEREOF - A touch detection method is used in a touch panel. The touch panel is capacitive touch panel integrated with a display panel. The method includes at least obtaining at least one control signal carrying synchronous information from the display panel. The control signal is used to control the display panel to display an image. The method also includes analyzing the control signal to obtain an interference time period, at which the touch panel is possibly interfered, and generating a trigger signal. A driving voltage signal and a sensing period of the touch panel are controlled according to the trigger signal, so that the sensing period is not overlapped with the interference time period. | 10-17-2013 |
20140184939 | TOUCH STRUCTURE - A touch structure is provided. The touch structure includes a first sensing electrode, a second sensing electrode, a first dummy pattern and a second dummy pattern. The first sensing electrode and the second sensing electrode are arranged in a staggered manner and electrically insulated from each other. The first dummy pattern is adjacent to the first sensing electrode and has a first pattern acute angle. The second dummy pattern is adjacent to the second sensing electrode and has a second pattern acute angle. The first dummy pattern and the second dummy pattern are separated from each other. The first pattern acute angle and the second pattern acute angle are faced toward the same overlapped portion between the first sensing electrode and the second sensing electrode substantially. | 07-03-2014 |
20140247244 | CAPACITIVE TOUCH SCREEN AND CONTROL METHOD THEREOF - A capacitive touch screen includes a plurality of touch sensing electrodes and a touch controller. Each of the plurality of touch sensing electrodes includes at least one driving area and at least one receiving area. The at least one driving area and the at least one receiving area are located in a same layer of the capacitive touch screen. The touch controller, electrically connected to the at least one driving area and the at least one receiving area in the plurality of touch sensing electrodes, is utilized for scanning the at least one driving area in order and detecting signals received by the at least one receiving area, or scanning the at least one receiving area in order and detecting signals received by the at least one driving area. | 09-04-2014 |
20140368223 | CAPACITANCE MEASUREMENT DEVICE AND ELECTRONIC DEVICE THEREOF - A capacitance measurement device for measuring the capacitance of a measured capacitor includes a charging control unit for charging the measured capacitor; a discharging control unit for discharging the measured capacitor; a voltage converting circuit coupled to the measured capacitor, for converting a voltage signal on the measured capacitor into a value that represents the capacitance of the measured capacitor; wherein in a first period, one of the charging control unit and the discharge control unit charges/discharges the measured capacitor and in a second period after the first period, the other one of the charging control unit and the discharge control unit discharges/charges the measured capacitor. | 12-18-2014 |