| EGALAX_EMPIA TECHNOLOGY INC. Patent applications |
| Patent application number | Title | Published |
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| 20120075250 | METHOD AND DEVICE FOR ANALYZING TWO-DIMENSION SENSING INFORMATION - The method and device for analyzing two-dimension sensing information are disclosed. The two-dimension (2D) sensing information is analyzed for determining touch related sensing information. The touch related sensing information may include touch related sensing information with inner low values within outer high values and with inner higher values within outer low values. | 03-29-2012 |
| 20120075248 | METHOD AND DEVICE FOR ANALYZING POSITIONS - A method and device for analyzing positions are disclosed. In sensing information, at least one position is determined according to a first characteristic of a touch related sensing information. The sensing information also has a touch related sensing information with a second characteristic, which is opposite to the first characteristic. The touch related sensing information with the second characteristic is neglected or filtered. In addition, another method and device for analyzing positions are disclosed. An AC signal is provided through a pen, and a first characteristic of a touch related sensing information corresponding to a finger is opposite to the second characteristic of the touch related sensing information corresponding to the pen. The first characteristic and the second characteristic can be used to distinguish the touch of the finger from the touch of the pen or for palm rejection. | 03-29-2012 |
| 20120075247 | METHOD AND DEVICE FOR ANALYZING POSITIONS - A method and device for analyzing positions are disclosed. In sensing information, at least one position is determined according to a first characteristic of a touch related sensing information. The sensing information also has a touch related sensing information with a second characteristic, which is opposite to the first characteristic. The touch related sensing information with the second characteristic is neglected or filtered. In addition, another method and device for analyzing positions are disclosed. An AC signal is provided through a pen, and a first characteristic of a touch related sensing information corresponding to a finger is opposite to the second characteristic of the touch related sensing information corresponding to the pen. The first characteristic and the second characteristic can be used to distinguish the touch of the finger from the touch of the pen or for palm rejection. | 03-29-2012 |
| 20120075246 | METHOD AND DEVICE FOR ANALYZING POSITIONS - A method and device for analyzing positions are disclosed. In sensing information, at least one position is determined according to a first characteristic of a touch related sensing information. The sensing information also has a touch related sensing information with a second characteristic, which is opposite to the first characteristic. The touch related sensing information with the second characteristic is neglected or filtered. In addition, another method and device for analyzing positions are disclosed. An AC signal is provided through a pen, and a first characteristic of a touch related sensing information corresponding to a finger is opposite to the second characteristic of the touch related sensing information corresponding to the pen. The first characteristic and the second characteristic can be used to distinguish the touch of the finger from the touch of the pen or for palm rejection. | 03-29-2012 |
| 20120075245 | METHOD AND DEVICE FOR CAPACITIVE POSITION DETECTION - The method and device for capacitive position detection are disclosed. The touch related sensors within a sensing device with a plurality of sensors are detected first. Therefore at least a range of the mutual capacitance detection for detecting sensing information can be determined according to the touch related sensors. The sensing information within the range of the mutual capacitance detection can be used for generating a two-dimension sensing information. | 03-29-2012 |
| 20120075228 | METHOD AND DEVICE FOR ANALYZING TWO-DIMENSION SENSING INFORMATION - The method and device for analyzing two-dimension sensing information are disclosed. The two-dimension (2D) sensing information is analyzed for determining touch related sensing information. The touch related sensing information may include touch related sensing information with inner low values within outer high values and with inner higher values within outer low values. | 03-29-2012 |
| 20120075224 | METHOD AND DEVICE FOR DUAL-DIFFERENTIAL SENSING - A method and device for dual-differential sensing is disclosed. The sensing information can be generated from signals provided by a sensing device with a plurality of sensors. Each value of the sensing information corresponds to signals of three sensors, respectively. The sensing device is flexible and configured on a display. The noise effect of the display on the signal of each sensor corresponds to the distance between the display and the sensor. Besides, the noise effect of the display on each value of the sensing information corresponds to the distances between the display and the three sensors, respectively. | 03-29-2012 |
| 20120068954 | METHOD AND DEVICE FOR CONVERTING SENSING INFORMATION - The method and device for converting sensing information are disclosed. A dual-differential sensing information is obtained and then converted into a sensing information, wherein the touch related sensing information having two peaks in a pair of zero-crossings is converted into quasi signal values. | 03-22-2012 |
| 20120068953 | METHOD AND DEVICE FOR POSITION DETECTION - The method and device for position detection are disclosed. Corresponding to a first touch related sensing information, a second touch related sensing information is acquired for determining at least one position. Each position is used separately for determining the position of a centroid according to the first touch related sensing information or the second touch related sensing information. | 03-22-2012 |
| 20120016628 | METHOD AND DEVICE FOR ANALYZING POSITIONS - The method and device for analyzing position are disclosed. By analyzing sensing information with at least one zero-crossing, each position can be analyzed. The number of analyzed positions may be different from the number of zero-crossings. When the number of analyzed positions is different from the number of zero-crossing, the number of analyzed positions is more than one. | 01-19-2012 |
| 20120013561 | METHOD AND DEVICE FOR DETERMINING A TOUCH OR TOUCHES - A method and device for determining a single touch or multiple touches is disclosed. A touch related sensing information with a single zero-crossing is used for determining a pair of values, and the locations of a pair of centroids are calculated depending on the pair of values. The distance between the locations of the pair of centroids can be used to determine whether the number of touches is one or more. | 01-19-2012 |
| 20120013393 | METHOD AND DEVICE FOR ANALYZING POSITIONS - The method and device for analyzing position are disclosed. By analyzing sensing information with at least one zero-crossing, each position can be analyzed. The number of analyzed positions may be different from the number of zero-crossings. When the number of analyzed positions is different from the number of zero-crossing, the number of analyzed positions is more than one. | 01-19-2012 |
| 20120007831 | METHOD AND DEVICE FOR POSITION DETECTION - A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position. One or more 2-D positions can be provided according to the one or more second 1-D positions corresponding to each first 1-D position. Besides, during the self-capacitance detection, the first mutual-capacitance detection, and the second mutual-capacitance detection, a touch related sensing information corresponding to a touch that covers a wide area can be neglected for palm rejection. | 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20110304585 | METHOD AND DEVICE FOR SIGNAL DETECTION - A method and device for signal detection is disclosed. At least one detection period is predefined for detecting a signal of a signal source, a differential signal of a pair of signal sources, or a dual-differential signal of three signal sources during at least one clock cycle, wherein the detection evades the period of a predictable noise. | 12-15-2011 |
| 20110291669 | METHOD AND DEVICE FOR AUTOMATICALLY CALIBRATING TOUCH DETECTION - A method and device for automatically calibrating touch detection is disclosed. The present invention includes providing a sensing layer including a plurality of sensors, and each sensor senses a sensing range, and the sensing ranges of the sensors intersecting each other to form a crossing array; continuously detecting signals of the sensors as a detection signal set; performing update of an initial signal set based on the detection signal set; and when a default signal set does not match the initial signal set and the default signal set matches the detection signal set, performing update of the initial signal set. | 12-01-2011 |
| 20110205175 | METHOD AND DEVICE FOR DETERMINING ROTATION GESTURE - The method and device for determining a rotation gesture are disclosed. By separating a touch trace into a plurality of segments, the orientation of each segment of the trace can be determined. According to these orientations, it can be determined whether the trace is a rotation gesture, and if so, the direction of the rotation gesture. | 08-25-2011 |
| 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 |
| 20110087455 | Method and device for analyzing positions - The method and device for analyzing position are disclosed. By analyzing sensing information with at least one zero-crossing, each position can be analyzed. The number of analyzed positions may be different from the number of zero-crossings. When the number of analyzed positions is different from the number of zero-crossing, the number of analyzed positions is more than one. | 04-14-2011 |
| 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 |
| 20110084937 | Method and device for analyzing positions - A method and device for analyzing positions are disclosed. In sensing information, at least one position is determined according to a first characteristic of a touch related sensing information. The sensing information also has a touch related sensing information with a second characteristic, which is opposite to the first characteristic. The touch related sensing information with the second characteristic is neglected or filtered. In addition, another method and device for analyzing positions are disclosed. An AC signal is provided through a pen, and a first characteristic of a touch related sensing information corresponding to a finger is opposite to the second characteristic of the touch related sensing information corresponding to the pen. The first characteristic and the second characteristic can be used to distinguish the touch of the finger from the touch of the pen or for palm rejection. | 04-14-2011 |
| 20110084936 | Method and device for capacitive position detection - The method and device for capacitive position detection are disclosed. The touch related sensors within a sensing device with a plurality of sensors are detected first. Therefore at least a range of the mutual capacitance detection for detecting sensing information can be determined according to the touch related sensors. The sensing information within the range of the mutual capacitance detection can be used for generating a two-dimension sensing information. | 04-14-2011 |
| 20110084931 | Method and device for position detection - The method and device for position detection are disclosed. Corresponding to a first touch related sensing information, a second touch related sensing information is acquired for determining at least one position. Each position is used separately for determining the position of a centroid according to the first touch related sensing information or the second touch related sensing information. | 04-14-2011 |
| 20110084930 | Method and device for dual-differential sensing - A method and device for dual-differential sensing is disclosed. The sensing information can be generated from signals provided by a sensing device with a plurality of sensors. Each value of the sensing information corresponds to signals of three sensors, respectively. The sensing device is flexible and configured on a display. The noise effect of the display on the signal of each sensor corresponds to the distance between the display and the sensor. Besides, the noise effect of the display on each value of the sensing information corresponds to the distances between the display and the three sensors, respectively. | 04-14-2011 |
| 20110084929 | Method and device for position detection - A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position. One or more 2-D positions can be provided according to the one or more second 1-D positions corresponding to each first 1-D position. Besides, during the self-capacitance detection, the first mutual-capacitance detection, and the second mutual-capacitance detection, a touch related sensing information corresponding to a touch that covers a wide area can be neglected for palm rejection. | 04-14-2011 |
| 20110084928 | Method and device for analyzing two-dimension sensing information - The method and device for analyzing two-dimension sensing information are disclosed. The two-dimension (2-D) sensing information is analyzed for determining touch related sensing information. The touch related sensing information may include touch related sensing information with inner lower values within outer high values and with inner higher values within outer low values. | 04-14-2011 |
| 20110084927 | Method and device for determining a touch or touches - A method and device for determining a single touch or multiple touches is disclosed. A touch related sensing information with a single zero-crossing is used for determining a pair of values, and the locations of a pair of centroids are calculated depending on the pair of values. The distance between the locations of the pair of centroids can be used to determine whether the number of touches is one or more. | 04-14-2011 |
| 20110084926 | Method and device for converting sensing information - The method and device for converting sensing information are disclosed. Each first touch related sensing information of a first sensing information is detected. At least one of the first touch related sensing information is converted. Each converted first touch related sensing information is replaced by a corresponding second touch related sensing information, whereby the first sensing information is converted into a second sensing information. | 04-14-2011 |
| 20110084924 | METHOD AND DEVICE FOR SIGNAL DETECTION - A method and device for signal detection is disclosed. At least one detection period is predefined for detecting a signal of a signal source, a differential signal of a pair of signal sources, or a dual-differential signal of three signal sources during at least one clock cycle. | 04-14-2011 |
| 20110084923 | Device and Method for Parallel-scanning Differential Touch Detection - A method for parallel-scanning differential touch detection is disclosed herein. The method includes generating a plurality of first outputs by a differential unit according to a plurality of first inputs provided by a plurality of sensors of a touch panel in each scan of total i scans, herein, the kth first output in the jth scan of the total i scans is the (i*(k−1)+j)th output in the continuous first outputs, i≧2, j≧1, k≧1, and i, j, k are natural numbers. Wherein, the differential unit has a plurality of subtractors and the inputs of the subtractors are connected in series. By doing so, the noises between a touch panel and a display can be eliminated. | 04-14-2011 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20100259505 | System and Method for Scanning Control of a Capacitive Touch Panel - This invention provides a system for scanning control of a capacitive touch panel. The system includes a driving unit driving a partially neighboring of a plurality of first axial conductive strips of the capacitive touch panel, wherein the plurality of first axial conductive strips are parallel to each other, and a first detecting unit detecting one of the partially neighboring of first axial conductive strips. By doing so, the influence caused by unintended conducting materials can be kept from the touch point detection for the capacitive touch panel, and the electro-magnetic interference of the capacitive touch panel can be also decreased. | 10-14-2010 |
| 20100007631 | Touch Method and Device for Distinguishing True Touch - This invention discloses a touch device for distinguishing true touch. The touch device includes a touch screen, a driving unit, and a sensing unit. The touch screen has a plurality of first conductive lines and second conductive lines where the first and second conductive lines are electrically isolated from each other and stacked to form a plurality of coupling intersections. The driving unit operatively drives the first conductive lines. The sensing unit determines the first conductive lines touched or approached by a plurality of objects and also determines the coupling intersections touched or approached by the objects when the first conductive lines touched or approached by the objects are driven. By doing so, the true touch and the false touch caused by the objects can be determined and distinguished. | 01-14-2010 |
| 20100007630 | METHOD AND DEVICE FOR CAPACITIVE SENSING - This invention discloses a capacitive sensing device. The device includes a plurality of first conductive lines electrically isolated from each other; a plurality of second conductive lines electrically isolated from each other and electrically isolated from and stacked with the first conductive lines to form a plurality of intersecting points; and a plurality of electrical conductors electrically isolated from each other and correspondingly crossing the first and the second conductive lines and being around the intersecting points, wherein the first and second conductive lines and the electrical conductors are electrically isolated from each other. By doing so, when an electrical signal is driven to any first conductive lines, the first conductive lines is capacitively coupled to the second conductive lines with which it intersects, and the electrical conductors crossing the first conductive lines are respectively capacitively coupled to the first conductive lines and the second conductive lines which intersect with the first conductive lines to provide a higher compound capacitance. | 01-14-2010 |
| 20100007629 | METHOD AND DEVICE FOR CAPACITIVE SENSING - This invention discloses a capacitive sensing device. The device includes a plurality of first conductive lines electrically isolated from each other; a plurality of second conductive lines electrically isolated from each other and electrically isolated from and stacked with the first conductive lines to form a plurality of intersecting points; and a plurality of electrical conductors electrically isolated from each other and correspondingly crossing the first and the second conductive lines and being around the intersecting points, wherein the first and second conductive lines and the electrical conductors are electrically isolated from each other. By doing so, when an electrical signal is driven to any first conductive line, the first conductive line is capacitively coupled to the second conductive lines with which it intersects, and the electrical conductors crossing the first conductive line are respectively capacitively coupled to the first conductive line and the second conductive lines which intersect with the first conductive line to provide a higher compound capacitance. | 01-14-2010 |
| 20090255737 | Device and Method for Preventing the Influence of Conducting Material from Point Detection of Projected Capacitive Touch Panel - This invention provides a device for preventing the influence of conducting material from point detection of projected capacitive touch panel. The device includes a first sensing layer having a plurality of first axial conductive lines isolated from each other and electrically connected to a plurality of first outside-connection conducting wires correspondingly, a second sensing layer having a plurality of second axial conductive lines isolated from each other and electrically connected to a plurality of second outside-connection conducting wires correspondingly, a signal driving line electrically connecting to the first and the second outside-connection conducting wires to provide a first sensing signal, and a sensing unit electrically connecting the first and the second outside-connection conducting wires to sense the sensing signal on the first and the second axial conductive lines. Wherein, the second sensing layer is on a dielectric layer, the first sensing layer, and a substrate in sequence. | 10-15-2009 |
| 20090211817 | TOUCH PANEL DEVICE OPERABLE BY MULTIPLE USERS AND A METHOD FOR CONTROLLING THE TOUCH PANEL - A touch panel device has a capacitive touch panel, a current sensing unit, a control unit and a switch. The control unit computes a coordinate of a press position based on current changes occurring at all corners of the touch panel, and provides an AC signal being output through multiple output terminals of the switch in turn. When the AC signal is applied to different users and then conducted to the touch panel, the control unit recognizes which user is pressing the touch panel. Therefore, the touch panel device has the capability of being operated my multiple users. | 08-27-2009 |
| 20090079709 | 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. In this manner, a vibration wave transmitted through each of the reflector columns or rows can be reflected and then collected at a target transducer in an uniform pattern with respect to each portion of each of the reflecting columns and rows, thereby avoiding the problem encountered in the prior art. | 03-26-2009 |
| 20090058818 | DEVICE AND METHOD FOR DETERMINING TOUCH POSITION ON SENSING AREA OF CAPACITIVE TOUCH PANEL - Described is a device and a method for determining a touch position on a sensing area of a capacitive touch panel. In the device and method, an alternating current (AC) scan signal having a frequency and a current value is supplied to each of four corners of the capacitive touch panel. Next, the frequencies of the AC scan signals are each rapidly switched among a group of specific frequencies. The current values of the AC scan signals detected. In response, a group of selected frequencies is selected according to a noise filtering procedure from the group of specific frequencies based on the current values. Final current values are obtained by calculating the current values of the AC scan signals of the group of selected frequencies. Finally, the touch position on the capacitive touch panel is determined based on the final current values. | 03-05-2009 |
| 20090049505 | MULTI-PURPOSE PORTABLE ELECTRONIC DEVICE - Described is a multi-purpose portable electronic device which is capable of providing both TV and storage functions. By using the portable electronic device, a user can watch a TV program received externally, store the TV program in a single portable electronic device and watch the stored TV program on different computers at different locations. In addition, an application software necessary for operating the portable electronic device on the computer may be directly stored in the portable electronic device itself. As such, a promoted convenience and lower cost are achieved by the multi-purpose portable electronic device. | 02-19-2009 |
| 20090049504 | MULTIVIDEO-PURPOSE PORTABLE ELECTRONIC DEVICE - Described is a multivideo-purpose portable electronic device which is capable of providing TV and PC camera functions, and even a storage function. By using the multivideo-purpose portable electronic device, a user can watch a TV program received externally and get involved in a video conference/chat process concurrently, store the TV program and a content of the video conference/chat process and watch the stored TV program and the content of the video conference/chat process on different computers. In addition, a specific application software necessary for operating the multivideo-purpose portable electronic device on the computer may be directly stored in the multivideo-purpose portable electronic device itself. As such, a promoted convenience and lower cost are achieved. | 02-19-2009 |
| 20090046209 | MULTI-VIDEO/AUDIO PURPOSE PORTABLE ELECTRONIC DEVICE - Described is a multi-video/audio purpose portable electronic device which is capable of providing both TV and broadcast functions, and even a storage function. By using the multi-video/audio purpose portable electronic device, a user can watch or listen to a TV/broadcast program received externally, store the TV/broadcast program and watch the stored TV/broadcast program on different computers at different locations. In addition, an application software necessary for operating the portable electronic device on the computer may be directly stored in the portable electronic device itself. As such, a promoted convenience and lower cost are achieved for the multi-video/audio purpose portable electronic device. | 02-19-2009 |
| 20090044988 | DEVICE AND METHOD FOR DETERMINING FUNCTION REPRESENTED BY CONTINUOUS RELATIVE MOTION BETWEEN/AMONG MULTITOUCH INPUTS ON SIGNAL SHIELDING-BASED POSITION ACQUISITION TYPE TOUCH PANEL - Described is a device and method for determining a function represented by a specific continuous relative motion between/among multitouch inputs on signal shield-based position acquisition type touch panel. The method comprises the steps of acquiring a minimum and maximum ordinate and abscissa values between/among the multitouch inputs; forming a rectangle based on the minimum and maximum ordinate and abscissa values; monitoring a sequential variation of an contour of the rectangle; and determining a gesture associated with the specific continuous relative motion of the multitouch inputs based on the sequential variation of the rectangle and relating the gesture to the function. | 02-19-2009 |
