Patent application number | Description | Published |
20090289908 | TOUCH DETECTING DEVICE CAPABLE OF SAVING ELECTRICITY - A touch detecting device capable of saving power for a touch panel includes a touch sensing unit, a micro control unit and a mode detecting unit. The touch sensing unit is coupled to the touch panel and used for being triggered by a first control signal to generate sensing data according to a touch state of the touch panel. The micro control unit is coupled to the touch sensing unit and used for being triggered by a second control signal to generate the first control signal. The mode detecting unit is coupled to the micro control unit and the touch panel, and used for generating the second control signal according to the touch state of the touch panel. | 11-26-2009 |
20100207905 | Method of Performing Timely Calibration of a Touch Parameter and Related Apparatus and System - A method of performing timely calibration of a touch parameter for a capacitive touch panel is disclosed. The method includes storing the touch parameter into a control register, sensing an analog touch signal according to the touch parameter stored in the control register and transforming the analog touch signal into a digital touch signal, reading the digital touch signal according to a calibrating read command, calculating a modified touch parameter according to the digital touch signal and transmitting the modified touch parameter to the capacitive touch panel, changing the touch parameter stored in a control register for the modified touch parameter according to a calibrating write command, determining an optimal touch parameter according to the digital touch signal sensed by using the modified touch parameter, and changing the touch parameter stored in a storage unit for the optimal touch parameter according to an updating write command. | 08-19-2010 |
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 |
20100321328 | COORDINATES ALGORITHM AND POSITION SENSING SYSTEM OF TOUCH PANEL - A position sensing system of a touch panel including a sensing unit and a decision unit is provided. When the touch panel is touched, the sensing unit obtains the sensing capacitances of p x-directional sensing lines and q y-directional sensing lines, wherein the sensing capacitances generated by these sensing lines exceed a threshold. The decision unit takes the central coordinates of the sensing lines with peak sensing capacitances as an x base coordinate and a y base coordinate, and adjusts the x base coordinate and the y base coordinate according to the ratios of the sensing capacitances of the other sensing lines to the peak sensing capacitance respectively to obtain an interpolated x coordinate and an interpolated y coordinate. | 12-23-2010 |
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 |
20110083042 | Touch Control Device and Controller, Testing Method and System of the Same - A testing method for testing a touch control device is disclosed. In a controller of the touch control device, a processor executes an operating firmware to realize a touch control function. The testing method includes a host testing device outputting a test requirement command to the controller, the controller outputting data corresponding to an operating stage selected from a plurality of operating stages of executing the operating firmware to the host testing device according to the test requirement command, and the host testing device determining an operating status of the touch device according to data provided by the touch control device. | 04-07-2011 |
20110157076 | Method and Apparatus for Adjusting Touch Control Parameter - A method utilized for adjusting touch control parameters, for deciding time for updating a touch control parameter of a touch control device, is disclosed. The touch control parameter includes an equivalent value of base capacitance corresponding to an environmental capacitance and a threshold value corresponding to a touch event. The method includes determining an amount of a touch sensing signal being located in an invalid range when the touch sensing signal is located in the invalid range, and starting to update the equivalent value of base capacitance when the amount of the touch sensing signal being located in the invalid range is greater than a first default value. | 06-30-2011 |
20110316794 | TOUCH SENSING METHOD AND TOUCH SENSING SYSTEM - A touch sensing system including a touch interface and a processing unit is provided. The touch interface has multiple independent touch blocks. The processing unit is coupled to the touch interface. The processing unit includes an interpolating unit. The interpolating unit interpolates multiple spacing points between two adjacent touch blocks along a first direction to generate multiple first coordinate values. The processing unit determines a central block according to a threshold value and sensing values corresponding to the touch blocks, selects at least one touch block adjacent to the central block as a peripheral block, and determines a touch position on the touch interface according to the number of the spacing points, the sensing value corresponding to the peripheral block, a position of the peripheral block, the sensing value corresponding to the central block, and a position of the central block. | 12-29-2011 |
20120044158 | ELECTRONIC APPARATUS WITH TOUCH PANEL AND METHOD FOR UPDATING TOUCH PANEL - An electronic apparatus with a touch panel including a host controller, an interface unit, and a touch panel control unit is provided. The host controller is used to control an electronic apparatus implemented with the host controller. The touch panel control unit is coupled to the host controller through the interface unit. The host controller transmits an updating information to the touch panel control unit with a format of the interface unit, in which the updating data is used to update the touch panel control unit. The touch panel control unit decodes the updating data to accordingly update. | 02-23-2012 |
20120068947 | TOUCH DETECTION METHOD AND TOUCH DETECTOR USING THE SAME - A method for double click detection includes the following steps. Firstly whether first event is detected is determined, if so, first corresponding position is obtained, a period counting is triggered, and first flag is set. Then whether the period ends is judged; if not and the first flag exists, a counter is incremented and second flag is set when first ending event is detected; if not and the second flag exists, second corresponding position is obtained and third flag is set when second event is detected; if not and the third flag exists, the counter is incremented when second ending event is detected; if so, a double click event is determined when the incremented value is greater than a threshold and a distance between the first and the second positions is smaller a threshold. | 03-22-2012 |
20120098759 | COORDINATE ALGORITHM OF TOUCH PANEL - A coordinate algorithm of a touch panel is provided, in which the touch panel includes a plurality of first-direction sensing lines and a plurality of second-direction sensing lines. The coordinate algorithm of a touch panel includes following steps. A first edge coordinate is obtained. A first coordinate compensation parameter is defined. The first edge coordinate is taken as a first base coordinate, and the first base coordinate is adjusted according to the first coordinate compensation parameter to obtain a first interpolation coordinate when an edge of the touch panel is touched. | 04-26-2012 |
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 |
20120146927 | METHOD FOR DETECTING SINGLE-FINGER ROTATE GESTURE AND THE GESTURE DETECTING CIRCUIT THEREOF - A method for detecting a single-finger rotation gesture and a gesture detecting circuit thereof are provided. The gesture detecting circuit comprises a quadrant dividing unit, a register, a control unit, a comparing unit, and an outputting unit. The quadrant dividing unit, according to the center point, divides a touch panel into at least three quadrants and sets a plurality of data codes respectively corresponding to the quadrants. Within a predetermined time, the control unit controls the register to sequentially record the data codes respectively corresponding to the touched quadrants. When the predetermined time is reached, the comparing unit compares to judge whether the temporary data buffered in the register is the same with the default data. If the temporary data is the same with the default data, then the outputting unit outputs a rotation gesture signal. | 06-14-2012 |
20120194445 | Moving Point Gesture Determination method, Touch Control Chip, Touch Control System and Computer System - A moving point gesture determination method is disclosed for a touch sense device mapped to a screen according to absolute position. The moving point gesture determination method includes steps of comparing one or more signal values of one or more detecting signals generated by the touch sense device with one or more threshold values, to determine whether any touch event occurs, and determining that a moving point gesture occurs once the determination indicates that a touch event occurs. | 08-02-2012 |
20120249442 | DRIVING METHOD FOR TOUCH-SENSING DISPLAY DEVICE AND TOUCH-SENSING DEVICE THEREOF - A driving method adapted to a touch-sensing display device is provided. The touch-sensing display device includes a display panel and a touch panel. The driving method includes following steps. A plurality of first scan signals of the touch panel are sequentially received, so that a plurality of first data values are obtained. It is determined whether the first data values are less than a difference between a baseline value and a threshold value. When one of the first data values is less than the difference between the baseline value and the threshold value, reporting of a touch coordinate of the touch panel is terminated. Furthermore, a touch-sensing device is also provided. | 10-04-2012 |
20130027331 | ZOOM GESTURE DETERMINATION METHOD AND TOUCH CONTROL CHIP - A zoom gesture determination method for a touch control device includes detecting a first touch point and a second touch point; determining a position difference between the first touch point and the second touch point; and deciding a zoom gesture represented by the first touch point and the second touch point according to variations in the position difference. | 01-31-2013 |
20130246821 | Serial Interface Transmitting method and Peripheral Device Chip - The present invention discloses a serial interface transmitting method utilized in a serial interface for connecting between a master controller and a peripheral device. The serial interface transmitting method comprises receiving a saving power signal from the master controller, a peripheral clock source and a serial interface clock source for generating a clock source selection result, switching an operational mode of the peripheral device according to the clock source selection result, and transmitting a datum to a peripheral-device register or a serial interface register according to the saving power signal and the operational mode. | 09-19-2013 |
20140092033 | TOUCH DETECTION METHOD FOR TOUCH PANEL - A touch detection method for a touch panel. The touch panel has a plurality of sensing nodes. Each sensing node has a baseline value. Each sensing node is sensed to obtain a scanned value. A touch event is detected according to a comparison with a finger-on threshold. When there is no touch event, the method detects whether or not an abnormal object has entered the sensing node. When entered, the method judges whether a difference count between the scanned value and baseline value is larger than a calibration level. When the difference count is larger, then the scanned value is used to update the baseline value. When no abnormal object, then the method judges whether the difference count is larger than a noise threshold. When the difference count is larger, then the scanned value is used to update the baseline value. The calibration level is smaller than finger-on threshold. | 04-03-2014 |
20140267146 | TOUCHING APPARATUS AND TOUCHING DETECTING METHOD THEREOF - A touching apparatus and a touching detecting method thereof are provided. The touching detecting method is adapted for a touch panel. The touch panel has a plurality of touching rows and a plurality of touching columns. The touching detecting method includes: performing a mutual-capacitor touching detection and a self-capacitor touching detection alternatively to the touch panel for obtaining a mutual-capacitor detection result and a self-capacitor detection result, respectively; and obtaining position information of at least one touch point on the touch panel by an operation based on the mutual-capacitor detection result and the self-capacitor detection result. | 09-18-2014 |