Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The invention provides a method and a device for image segmentation. After obtaining an image constructed of a plurality of 1D sensing information, each line piece in each 1D sensing information, which corresponds to touch or proximity of one or more external conductive objects, is determined. Next, the line pieces corresponding to touch or proximity of different external conductive objects are segmented based on overlapping relationships between the adjacent line pieces.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The method and device for capacitive position detection are disclosed. A capacitive sensing device including pluralities of first sensors and second sensors. A controller obtains a 2-D sensing information, the 2-D sensing information comprises a plurality of first 1-D sensing information from the capacitive sensing device, and obtains at least one second 1-D sensing information, wherein the value of the at least one second 1-D sensing information is generated based on the sum of the sensed values of one of first 1-D sensing information, determines at least one detected range in the 2-D sensing information based on the at least one second 1-D sensing information when the capacitive sensing device is being touched or approached by at least one external object, and determines each touch related sensing information corresponding to the at least one external object in the at least one detected range.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.