Abstract: A signal processing method for a touch sensing apparatus includes: sequentially dividing sensing signals of a plurality of sensing points on an entire panel into a plurality of signal sequences according to a batch in a signal generation order of the sensing points; and sequentially performing a plurality of signal processing procedures on the signal sequences.

Abstract: A method for correcting a measurement threshold of a capacitive sensing apparatus and a capacitive sensing apparatus are provided, so that a measurement threshold used when the capacitive sensing apparatus performs touch detection can be set by using a plurality of statistics of various signals at all sensing points on a same electrode, thereby avoiding problems such as non-uniform strength and insufficient strength of a signal at each sensing point on a signal sensor caused by a measurement time difference.

Abstract: A common input read method of an array signal is applicable to a touch sensing apparatus using a drive signal having a characteristic of a continuous function (being differentiable) as a touch basis. The touch sensing apparatus includes a plurality of sensing electrodes and a plurality of drive electrodes. Any sensing electrode initially first undergoes a stabilization process till a signal becomes stable and indicates completion, an initially stabilized same sensing electrode is then read according to a selection order of the drive electrodes, and an initial stabilization action only needs to be performed when a sensing electrode that is not currently processed needs to be processed. In this way, the time it takes to enter a steady state is reduced, so that the sensing speed is further increased.

Abstract: A touch-sensing method with unexpected-touch exclusion includes detecting sensing area to obtain touch point; checking total number of detected points forming the touch point with first and second numbers; determining a touch of the touch point as normal touch when the total number is less than or equal to the first number; determining the touch of the touch point as invalid touch when the total number is greater than or equal to the second number; checking if the touch point belongs to an edge region or not when the total number is greater than the first number and less than the second number; determining the touch of the touch point as the invalid touch when the touch point does not belong to the edge region; and determining the touch of the touch point as an unknown touch when the touch point belongs to the edge region.

Abstract: A sensing method of a touch-sensing device is provided, including: selecting one of a plurality of first electrodes as a background electrode; measuring a plurality of sensing points on the background electrode, to obtain a plurality of background signals; generating a touch-simulating signal that simulates a touch event; selecting another first electrode of the plurality of first electrodes as a selected electrode; measuring a plurality of sensing points on the selected electrode based on the plurality of background signals by using the touch-simulating signal, to obtain a plurality of simulation event signals; calculating a proportional relationship between the plurality of simulation event signals; and using the proportional relationship as a signal compensation coefficient of the plurality of sensing points on the selected electrode.

Abstract: A method for sensing a touch sensing signal is provided and is applicable to a touch sensing device. During touch sensing, any sensing electrode is precharged by using a direct current until a level of the sensing electrode is stable. Then, a scanning operation is performed on a sensing point formed by the stabilized sensing electrode and multiple driving electrodes, to reduce a settling time.

Abstract: A detection and updating method of touch system includes: proceeding an ideal base signal measurement to obtain a plurality of ideal base signals under an ideal state; proceeding a raw base signal measurement to obtain a plurality of raw base signals under a raw state; forming a linear relationship related by the ideal base signals and the raw base signals to obtain two coefficients; calculating a plurality of new base signals according to the two coefficients and the ideal base signals; and, proceeding a base signal updating method by the new base signals.

Abstract: A detection method for an irregular conductive matter in a touch event includes scanning a plurality of detection points to obtain a plurality of sensing signals of the detection points; computing a first signal summation of all positive signals among the sensing signals; obtaining a first change between the first signal summation and a previous first signal summation; computing a second signal summation of all negative signals among the sensing signals; obtaining a second change between the second signal summation and a previous second signal summation; setting a flag according to the first change and the second change when the first change and the second change are positive; clearing the flag according to the first change and the second change when the first change and the second change are negative; and disabling a reporting of at least one touch point when the flag exists.

Abstract: A common input read method of an array signal is applicable to a touch sensing apparatus using a drive signal having a characteristic of a continuous function (being differentiable) as a touch basis. The touch sensing apparatus includes a plurality of sensing electrodes and a plurality of drive electrodes. Any sensing electrode initially first undergoes a stabilization process till a signal becomes stable and indicates completion, an initially stabilized same sensing electrode is then read according to a selection order of the drive electrodes, and an initial stabilization action only needs to be performed when a sensing electrode that is not currently processed needs to be processed. In this way, the time it takes to enter a steady state is reduced, so that the sensing speed is further increased.

Abstract: A capacitive sensing apparatus, an event detection method for a measurement environment of a capacitive sensing apparatus, and a method for determining a correction timing of a capacitive sensing apparatus are applicable to a capacitive sensing apparatus. The capacitive sensing apparatus uses a signal simulation unit to directly simulate signal strength or a sensing signal of a touch, then determines, based on the simulated signal strength or sensing signal and an actually measured sensing signal, whether a measurement condition is suitable, and performs proper adjustment, thereby improving the accuracy and/or the identification rate of the capacitive sensing apparatus.

Abstract: A signal processing method for a touch sensing apparatus includes: sequentially dividing sensing signals of a plurality of sensing points on an entire panel into a plurality of signal sequences according to a batch in a signal generation order of the sensing points; and sequentially performing a plurality of signal processing procedures on the signal sequences.

Abstract: A method for obtaining a safety reference point of a capacitive sensing device is applicable to a capacitive sensing device. In the method, a signal simulation unit is used to generate a touch simulation signal simulating a touch and a touch sensing signal simulating a touch detection result that a touch event occurs for a signal sensor, then whether a measurement condition is proper is judged according to the touch simulation signal, an actually measured sensing signal, and the simulated touch detection result, and corresponding adjustment is performed properly, so as to improve accuracy and/or a recognition rate of the capacitive sensing device.

Abstract: A method for correcting a measurement threshold of a capacitive sensing apparatus and a capacitive sensing apparatus are provided, so that a measurement threshold used when the capacitive sensing apparatus performs touch detection can be set by using a plurality of statistics of various signals at all sensing points on a same electrode, thereby avoiding problems such as non-uniform strength and insufficient strength of a signal at each sensing point on a signal sensor caused by a measurement time difference.

Abstract: A capacitive sensing device, a method for obtaining touch thresholds under different control conditions of the same, and a correction method for the same are applicable to a capacitive sensing device. Herein, by simulating a touch event, reaction ranges of touch sensing signals of a signal sensor under different control conditions are found, and corresponding standard touch references are set according to the reaction ranges, so as to obtain and maintain clean references under the different conditions, and then improve accuracy of distinguishing touch sensing signals.

Abstract: A refreshing method of sensing baseline values for a capacitive sensor device and the capacitive sensor device are applied to confirm whether the differences between the current measured values and the factory or record baseline values are approximately equal, to determine whether to use current measured values as the sensing baseline values used in the following sensing procedure. When the differences are approximately equal, the current measured values are used as the sensing baseline values. When the differences are not approximately equal, the factory baseline values are used as the sensing baseline values, and the correcting procedure of the sensing baseline values of the sensing points is executed. In the correcting procedure, the signal characteristic of the measured value of each sensing point is detected to be high frequency or low frequency, to determine whether to refresh the corresponding sensing baseline values by the current measured values.

Abstract: A sensing method of touch point includes: detecting an edge region to obtain one or more effective touch point; and determining whether the effective touch point is a valid touch point according to a number of the effective touch point(s) and an area of each of the effective touch point(s). The valid touch point is the effective touch point with the number being equal to 1 and the area satisfying a size condition.

Abstract: An object identification method of touch system is disclosed. The object identification method includes: repeating an object measurement to obtain a plurality of object signals; conducting a liquid measurement to obtain a liquid signal; determining whether the value of the liquid signal is greater than a first default value or less than a second default value, wherein the first default value is larger than the second default value; proceeding with an elimination step if the value of the liquid signal is greater than the first default value; and, proceeding with a start step if the value of the liquid signal is less than the second default value.

Abstract: A capacitive sensing method includes detecting present measured values of plural reference points selected from plural sensing points, generating a present difference value according to the present measured values of the reference points and one or more reference measured values, obtaining a selected adjustment factor according to a relation setting and the present difference value, detecting present measured values of the sensing points, generating plural position signals of the sensing points according to the present difference values of the sensing points, adjusting the position signals according to the selected adjustment factor, and controlling the output of the adjusted position signals according to a reference signal. The sensing points are defined by electrodes intersected with one another and configured to form an array. The reference points are located at the periphery of the array. The relation setting is the relationship between signal difference values and adjustment factors.

Abstract: A method for position detection is adapted to a sensing device. The sensing device includes a plurality of sensing blocks arranged in a 2D array, with each block having a plurality of sensing points arranged in a 2D array. The method includes conducting a block-scan to determine if a touched block exists, and conducting a point-scan to obtain a touched point if the touched block exists. In order to obtain a touched point, the sensing device applying the method conducts a block-scan within the sensing area and then a point-scan within the touched block instead of point-scanning the whole sensing area. Accordingly, the sensing device could obtain the touched point faster than before.

Abstract: A detection and updating method of touch system includes: proceeding an ideal base signal measurement to obtain a plurality of ideal base signals under an ideal state; proceeding a raw base signal measurement to obtain a plurality of raw base signals under a raw state; forming a linear relationship related by the ideal base signals and the raw base signals to obtain two coefficients; calculating a plurality of new base signals according to the two coefficients and the ideal base signals; and, proceeding a base signal updating method by the new base signals.