Patent application number | Description | Published |
20100066673 | Laser pointer capable of detecting a gesture associated therewith and representing the gesture with a function - Described is a laser pointer capable of detecting a gesture associated therewith and representing the gesture with a function, comprising a light emitting unit for emitting a laser light; a detection unit for detecting a set of accelerations composed of at least an acceleration of the gesture and outputting an acceleration signal set; a control unit for receiving and outputting the acceleration signal set or outputting a processed acceleration signal set; and a communications unit for receiving and transmitting the acceleration signal set or the processed acceleration signal set through a communications channel to be received by an electronic device in order to determine the gesture and perform the corresponding function according to the acceleration signal set or the processed acceleration signal set. | 03-18-2010 |
20100263943 | Method and Device for Resistive Multi-point Touch - A resistive multi-point touch device and method is disclosed. A plurality of wires intersect each other to form a plurality of intersecting regions. The intersecting wires are separated from each other by a plurality of insulating particles. First, suppressed intersecting regions are sensed, and then contact points on the suppressed intersecting regions are sensed based on the suppressed intersecting regions. Sensing of the suppressed intersecting regions is performed by first sensing suppressed wires, and then determining possibly suppressed intersecting regions based on the suppressed wires, and sensing suppressed intersecting regions based on these possibly suppressed intersecting regions. | 10-21-2010 |
20100264938 | Method and Device for Position Detection - A method and the device for position detection are disclosed. The device comprises a plurality of conductive strips intersecting each other to form a plurality of intersecting regions. A pair of depressed strips intersecting on any intersecting region contact each other to form a depressed intersecting region. When a high voltage and a low voltage are separately provided to the first ends of each pair of overlapping strips, the voltages at the second ends of each pair of overlapping strips are detected so as to determine each depressed intersecting regions. | 10-21-2010 |
20100328271 | METHOD AND APPARATUS FOR GENERATING DRIVER SIGNALS OF SAW TOUCH PANEL - The present invention relates to a method and apparatus for generating driver signals of SAW touch panel. The method includes the steps of: sending a trigger signal continuously by referring to an input signal, wherein the trigger signal is sent when the input signal is within a predetermined range; generating a surface acoustic wave according to the trigger signal; transmitting the surface acoustic wave to at least one transducer via a touch surface; and detecting the input signal via at least one transducer. Moreover, the input signal is kept on a predetermined level when the surface acoustic wave has not been received by the transducer and when a noise signal from circuits outside the transducer has not been added in the input signal. The predetermined level is within the predetermined range. The sensing accuracy of the SAW touch panel can be enhanced because the noise signal has less effect on the driver signals. | 12-30-2010 |
20110011651 | METHOD AND DEVICE FOR DETECTING TERMINAL CONNECTION OF 4-TERMINAL OR 5-TERMINAL RESISTIVE TOUCH PANEL - A device and method for detecting connections of a 4- or 5-terminal resistive touch panel are disclosed. The device includes five terminals and a detecting unit. When the five terminals are connected to the touch panel, the detecting unit provides a high potential and a low potential to first and last of the five terminals, respectively, thereby determining whether the touch panel is a 4- or 5-terminal resistive touch panel by determining if there is a closed circuit between the two terminals. | 01-20-2011 |
20110012847 | METHOD AND DEVICE FOR DETECTING TERMINAL CONNECTION OF 4-TERMINAL OR 5-TERMINAL RESISTIVE TOUCH PANEL - A device and method for detecting connections of a 4- or 5-terminal resistive touch panel are disclosed. The device includes five terminals and a detecting unit. When the five terminals are connected to the touch panel, the detecting unit provides a high potential and a low potential to first and last of the five terminals, respectively, thereby determining whether the touch panel is a 4- or 5-terminal resistive touch panel by determining if there is a closed circuit between the two terminals. | 01-20-2011 |
20110012855 | METHOD AND DEVICE FOR PALM REJECTION - The present invention carries out palm rejection on a multi-touch panel. The panel is first touched by a palm before the detection of a finger or pen to define a rejection region and the touch location of the finger or pen is detected outside that rejection region. The present invention, when the rejection region and the touch location of the finger or pen have been detected, is able to continuously detecting a region touched by the palm using a detected range defined by the rejection region to determine whether the rejection region needs to be updated. | 01-20-2011 |
20110012860 | METHOD AND DEVICE FOR DETECTING TERMINAL CONNECTION OF 4-TERMINAL OR 5-TERMINAL RESISTIVE TOUCH PANEL - A device and method for detecting connections of a 4- or 5-terminal resistive touch panel are disclosed. The device includes five terminals and a detecting unit. When the five terminals are connected to the touch panel, the detecting unit provides a high potential and a low potential to first and last of the five terminals, respectively, thereby determining whether the touch panel is a 4- or 5-terminal resistive touch panel by determining if there is a closed circuit between the two terminals. | 01-20-2011 |
20110012861 | METHOD AND DEVICE FOR DETECTING TERMINAL CONNECTION OF 4-TERMINAL OR 5-TERMINAL RESISTIVE TOUCH PANEL - A device and method for detecting connections of a 4- or 5-terminal resistive touch panel are disclosed. The device includes five terminals and a detecting unit. When the five terminals are connected to the touch panel, the detecting unit provides a high potential and a low potential to first and last of the five terminals, respectively, thereby determining whether the touch panel is a 4- or 5-terminal resistive touch panel by determining if there is a closed circuit between the two terminals. | 01-20-2011 |
20110084941 | SENSING DEVICE OF SURFACE ACOUSTIC WAVE TOUCH PANEL - Described is a sensing device of a surface acoustic wave (SAW) touch panel having a new reflector columns and rows arrangement. As compared to the conventional design in the art where each of the reflector columns and rows are arranged from thinness to thickness, each of the arrangements of the reflector columns and rows herein is composed of a plurality of uniformly disposed reflectors having several sub-reflectors isolated with a gap or gaps. | 04-14-2011 |
20110096038 | METHOD AND DEVICE FOR CONVERTING SENSING INFORMATION - A surface acoustic wave (SAW) touch panel with improved touching precision is provided. By forming a matte surface that diffuses a back wave generated by the edge of the SAW touch panel due to discontinuity, the touching precision of the SAW touch panel is improved. | 04-28-2011 |
20120007609 | Method and Device for Position Detection - A method and the device for position detection are disclosed. The device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of depressed strips intersecting on an intersecting region contact to each other to form a depressed intersecting region. According to the depressed intersecting regions, each depression can be determined. The total contact impedance of a depressing crossover a plurality of intersecting regions is the parallel contact impedance of the contact impedances of all intersecting regions corresponding to the same depression. | 01-12-2012 |
20120007610 | Method and Device for Determining Impedance of Depression - A method and the device for position detection are disclosed. The device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of depressed strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region, wherein the contact impedance of the contact point is determined according to the position of the contact point and the voltages on the contact point of one and the other of the pair depressed strips. | 01-12-2012 |
20120007611 | Method and Device for Correcting Position Error - A method and the device for position detection are disclosed. The device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of depressed strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region. According to the voltages of each strip before and after the strip is depressed, an error ratio can be determined. Based on the error ration, the position error caused by the contact impedance crossover strips can be corrected. | 01-12-2012 |
20120007612 | Method and Device for Position Detection - A device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region. The erroneously determined intersecting regions can be detected by comparing the contact points with the corresponding intersecting regions so as to provide the only correct contact points. | 01-12-2012 |
20120007614 | Method and Device for Position Detection with Palm Rejection - The method and the device for position detection with palm rejection are disclosed. The invention provides a sensor and a controller for controlling the sensor. The sensor includes a plurality of strips. The controller execute a first kind of position detection and a second kind of position detection on the sensor. The first kind of position detection identifies an ignored zone, and the second kind of position detection executes the position detection outside the ignored zone. | 01-12-2012 |
20120007616 | Method and Device for Determining Impedance of Depression - A method and the device for position detection are disclosed. The device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of depressed strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region, wherein the contact impedance of the contact point is determined according to the position of the depressed intersecting region and the voltages on the contact point of one and the other of the pair depressed strips. | 01-12-2012 |
20120007618 | Method and Device for Position Detection with Palm Rejection - A method and the device for palm ignoring disclosed. The device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region. The depression depressed by the palm can be determined by comparing the total impedance of the depression with a threshold so as to be ignored. | 01-12-2012 |
20130038575 | SYSTEM AND METHOD FOR COMMUNICATION THROUGH TOUCH SCREENS - The invention discloses a system and method for communication through touch screens that uses a first touch screen and a second touch screen for communication to form a communication system. The first and the second touch screens have a detecting mode for detecting an approach or touch of an external conductive object. In addition, the first and the second touch screens have a communication mode in which capacitively coupled communications between the first and the second touch screens are performed in order to exchange or communicate a message. | 02-14-2013 |
20130076694 | APPARATUS FOR DETECTING POSITION BY INFRARED RAYS AND TOUCH PANEL USING THE SAME - An apparatus for detecting a position by infrared rays is disclosed. The apparatus includes a plurality of IR sources, a plurality of receivers and a processor electrically coupled to the receivers. The IR sources and the receivers are interlacedly configured along a frame. The IR sources emit IR signals in at least two dimensions, and the IR sources in each dimension comprise two sets of IR signals running contrarily in direction. The receivers receive the IR signals from the corresponding IR sources. Even if the IR signals in one direction of one dimension are subject to interference, the IR signals in the other direction of the dimension can still be measured by the corresponding receivers. When at least one object is set in at least one position within the frame, the processor determines the position according to the coordinates of the receivers and strength variations of the received IR signals. | 03-28-2013 |
20130155013 | CAPACITIVE TOUCH SENSOR AND CAPACITIVE PEN - When a touch sensor is approached or touched by a capacitive pen in a small area, the corresponding approach or touch signal might be slightly less than the threshold originally used for normal detection. By comparing the sum of the corresponding approach or touch signal and some adjacent signals with the threshold, the approach or touch of a small-area object that otherwise would not be detected by the original method can be determined. The capacitive pen can be made of bonded conductive fibers. | 06-20-2013 |
20130155014 | CAPACITIVE CORDLESS WRITING DEVICE - When a touch sensor is approached or touched by a capacitive pen in a small area, the corresponding approach or touch signal might be slightly less than the threshold originally used for normal detection. By comparing the sum of the corresponding approach or touch signal and some adjacent signals with the threshold, the approach or touch of a small-area object that otherwise would not be detected by the original method can be determined. The capacitive pen can be made of bonded conductive fibers. | 06-20-2013 |
20130155016 | CAPACITIVE TOUCH SENSOR AND CAPACITIVE PEN - When a touch sensor is approached or touched by an object having a small area, the corresponding approach or touch signal might be slightly less than the threshold originally used for normal detection. By comparing the sum of the corresponding approach or touch signal and some adjacent signals with the threshold, the approach or touch of a small-area object that otherwise would not be detected by the original method can be determined. | 06-20-2013 |
20130257818 | METHOD AND DEVICE FOR POSITION DETECTION - The present invention provides a method and device for position detection. For detection of a touch position, a segment of surface acoustic wave (SAW) is provided multiple times to be propagated on a SAW touch panel, and the multiple SAW segments are received by the SAW touch panel. In addition, during or after reception, partial output electrical signals are provided based on different portions of each received SAW segment to construct a complete output electrical signal. | 10-03-2013 |
20130257819 | METHOD AND DEVICE FOR POSITION DETECTION - The present invention provides a method and device for position detection. For detection of a touch position, a segment of surface acoustic wave (SAW) is provided multiple times to be propagated on a SAW touch panel, and the multiple SAW segments are received by the SAW touch panel. In addition, during or after reception, partial output electrical signals are provided based on different portions of each received SAW segment to construct a complete output electrical signal. | 10-03-2013 |
20130257820 | METHOD AND DEVICE FOR POSITION DETECTION - The present invention provides a method and device for position detection. For detection of a touch position, a segment of surface acoustic wave (SAW) is provided multiple times to be propagated on a SAW touch panel, and the multiple SAW segments are received by the SAW touch panel. In addition, during or after reception, partial output electrical signals are provided based on different portions of each received SAW segment to construct a complete output electrical signal. | 10-03-2013 |
20130314144 | DETECTING METHOD AND DEVICE FOR SUPPRESSING INTERFERENCE OF LOW-FREQUENCY NOISE - The invention, upon receiving an input signal, sums the absolute values of the difference of each pair of values adjacent to each other within a series of detected signal values to suppress the interference of low-frequency noise. Furthermore, the invention sums the absolute values of the moving averages of the differences of each pair of values adjacent to each other within a series of detected signal values to suppress both the interference of low-frequency noise and the interference of high-frequency noise. No synchronization with the input signal is necessary. The detection can be started at any phase of the input signal. | 11-28-2013 |
20130314370 | DETECTING METHOD AND DEVICE FOR SUPPRESSING INTERFERENCE OF LOW-FREQUENCY NOISE - The invention detects the difference between the maximum signal and the minimum signal at each of a plurality of cycles separately when a sine wave is received. All differences are summed for generating a single detected signal for suppressing the interference of low-frequency noise. No synchronization with the sine wave is necessary and the detection can start at any phase of the sine wave. | 11-28-2013 |
20140062949 | Touch sensing method, processor and system - The invention provides a touch sensing method. The touch sensing method comprises the following steps: obtaining a first 1-D sensing information, wherein the first 1-D sensing information comprises a plurality of first values; obtaining a second 1-D sensing information, wherein the second 1-D sensing information comprises a plurality of second values, wherein the positions of the first values respectively correspond to the positions of the second values, and the first 1-D sensing information is generated when no external conductive object approaches or touches; determining a plurality of first variations based on the differences between the first values and the corresponding second values; determining an average variation based on all or part of the first variations; and determining a plurality of second variations based on the differences between the first variations and the average variation. | 03-06-2014 |
20140062950 | Touch sensing method, processor and system - The invention provides a touch sensing method. The touch sensing method comprises the following steps: searching each line piece of a line piece group in a 1-D sensing information which comprising a plurality of values, and each line piece comprises part of the values; keeping a first line piece in the line piece group if at least one value of the first line piece of all line pieces is higher than a preset range; and excluding a second line piece from the line piece group if at least one value of the second line piece of all line pieces is lower than the preset range. | 03-06-2014 |
20140071360 | TOUCH DISPLAY AND METHOD FOR DRIVING A PLURALITY OF TOUCH DRIVING ELECTRODES OF TOUCH DISPLAY - A touch display provided by the present invention includes a control unit and a display. The control unit outputs driving signals to a plurality of touch driving electrodes and receives sensing signals from a plurality of touch sensing electrodes so as to detect touch or proximity of at least one external object based on the capacitive coupling between the driving and sensing electrodes. The display includes a liquid crystal layer, a pixel electrode and a common electrode, wherein the liquid crystal layer is driven by the pixel electrode and the common electrode. The common electrode includes the touch driving electrodes, and the common electrode except the touch driving electrodes are electrically coupled to a DC potential to form a shielded region. | 03-13-2014 |
20140078085 | PREDICTION-BASED TOUCH CONTACT TRACKING - When an external object approaches or touches a touch sensor, predicted locations of the external object can be generated by detected locations according to signals from the touch sensor. The latest predicted location is shifted backwards towards the latest reported location for a portion of the distance between the predicted location and the latest reported location to generate a new reported location, whereby jittering of the reported locations caused by noise in the signals of the touch sensor can be reduced or filtered. | 03-20-2014 |
20140168155 | METHOD, STORAGE MEDIUM, AND ELECTRONIC APPARATUS FOR CALIBRATING TOUCH SCREEN - The present invention provides a calibration method of a touch screen which comprises a display module and a sensor module. The calibration method comprises the following steps: receiving coordinate values of multiple display points shown on the display module; receiving coordinate values of multiple sensing points received by the sensor module, wherein the multiple sensing points are corresponding to the multiple display points, respectively, for forming at least four multiple correspondences; calculating a first set of calibration formulas according to the multiple correspondences; adjusting the multiple sensing points according to the first set of calibration formulas; and calculating a second set of calibration formulas according to the adjusted sensing points. | 06-19-2014 |
20140169137 | SYSTEM AND PROCESSING APPARATUS FOR MEASURING SURFACE ACOUSTIC WAVE SENSITIVE AREA SIZE AND METHOD THEREOF - A measuring method of touch sensitive area size of a SAW sensor module is provided. The SAW sensor module comprises a substrate configured for propagating SAW, a first transmitter and a first receiver corresponding to a first axis, a second transmitter and a second receiver corresponding to a second axis. The SAWs emitted by the first transmitter at least pass through a first initial distance xi, propagate through a second axis length y after reflected by a first SAW reflecting bar, and enter the first receiver after reflected by a second SAW reflecting bar. The SAWs emitted by the second transmitter at least pass through a second initial distance yi, propagate through a first axis length x after reflected by a third SAW reflecting bar, and enter the second receiver after reflected by a fourth SAW reflecting bar. | 06-19-2014 |
20140184541 | Processing Apparatus of Optical Touch System and Operating Method Thereof - An operating method of an optical touch system is provided. The method includes the following steps of: performing at least one test sensing step for obtaining a luminance characteristic value until the luminance characteristic value is smaller than a first threshold value, the test sensing period of each test sensing step is shorter than the period of the previous test sensing step; performing at least one subsequent sensing step based on the test sensing period of the last test sensing step for obtaining a subsequent image; calculating a sensing image based on the at least one subsequent image; and performing a position determining step of each object shown on the sensing image. | 07-03-2014 |
20140184563 | Touch Sensing Circuit, Apparatus, and System and Operating Method thereof - A touch sensing circuit is provided. The circuit is configured to connect to a conducting wire in a touch area for measuring a signal variation. In a driving mode, the wire is coupled to AC voltage. If a first voltage variation which exceeds a first threshold is measured by the circuit, it is determined that something is approaching the touch area near the wire. In a passive mode, the wire is coupled to DC voltage. If a second voltage variation which exceeds a second threshold is measured by the circuit, it is determined that something is approaching the touch area near the wire. When measuring the second voltage variation, no AC voltage is coupled to the wire. | 07-03-2014 |
20140184564 | METHOD AND DEVICE FOR LOCATION DETECTION - The changes of capacitances of a plurality of detecting locations on a touch screen are detected for determining a profile corresponding to each external object approaching or touching the touch screen. Then the location of each external object is generated separately by two or four values in the corresponding profile. | 07-03-2014 |
20140184565 | METHOD AND DEVICE FOR DETECTING TOUCH OR PROXIMITY - When at least one external object approaches or touches a touch sensor, profiles in a scanning signal corresponding to each external object will appear. The smallest value between the profiles corresponding to a first and a second external object is designated as a division value when the profiles corresponding to the first and the second external objects overlap. The overlapping profiles can be divided into the portion of the first external object and the portion of the second external object, respectively. | 07-03-2014 |
20140198075 | DETECTION METHOD AND DEVICE FOR TOUCH SCREEN - A detection method and device for a touch screen is provided. When a pen touching or approaching the touch screen is detected, only the location of the pen in a predetermined range is provided, and the locations of all other objects within the predetermined range are not provided, such as the location of a palm. Only when the pen is no longer detected over a predetermined period of time, then the locations of objects other than the pen in the predetermined range are provided again. | 07-17-2014 |
20140333557 | ELECTRONIC DEVICE, PROCESSING MODULE, AND METHOD FOR DETECTING TOUCH TRACE STARTING BEYOND TOUCH AREA - The present invention provides a method for detecting a touch trace starting beyond a touch area. The method comprises the following steps: receiving touch events happened in the touch area detected by a touch module; plotting a touch trace according to the touch events outputted from the touch module; determining whether a first touch trace beginning with a first point as the touch trace starting beyond the touch area; and determining whether a second touch trace beginning with a second point as the touch trace starting beyond the touch area, wherein the first point is within a first range to a boundary of the touch area and the second point is within a second range to the boundary, and the second range is larger than the first range. | 11-13-2014 |