TOUCH PROCESSOR AND METHOD
First Claim
1. A touch processor, electrically coupled with a touch screen including M drive electrodes and N sense electrodes, wherein the touch processor executes the following steps:
- determining at least one first drive electrode and at least one first sense electrode touched or approached by a first external object; and
performing a first mutual capacitive detection of X of the M drive electrodes and Y of the N sense electrodes, wherein the X drive electrodes comprises the at least one first drive electrode, and the Y sense electrodes comprises the at least one first sense electrode, wherein X is less than M, and Y is less than or equal to N.
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Accused Products
Abstract
The invention discloses a touch processor and method, applied to a touch screen including M drive electrodes and N sense electrodes, wherein the touch processor executes the following steps: determining at least one first drive electrode and at least one first sense electrode touched or approached by a first external object; and performing a first mutual capacitive detection of X of the M drive electrodes and Y of the N sense electrodes, wherein the X drive electrodes comprises the at least one first drive electrode, and the Y sense electrodes comprises the at least one first sense electrode, wherein X is less than M, and Y is less than or equal to N.
52 Citations
20 Claims
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1. A touch processor, electrically coupled with a touch screen including M drive electrodes and N sense electrodes, wherein the touch processor executes the following steps:
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determining at least one first drive electrode and at least one first sense electrode touched or approached by a first external object; and performing a first mutual capacitive detection of X of the M drive electrodes and Y of the N sense electrodes, wherein the X drive electrodes comprises the at least one first drive electrode, and the Y sense electrodes comprises the at least one first sense electrode, wherein X is less than M, and Y is less than or equal to N. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A touch method, applied to a touch screen including M drive electrodes and N sense electrodes, wherein the touch method comprises the following steps:
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determining at least one first drive electrode and at least one first sense electrode touched or approached by a first external object; and performing a first mutual capacitive detection of X of the M drive electrodes and Y of the N sense electrodes, wherein the X drive electrodes comprises the at least one first drive electrode, and the at least one Y sense electrodes comprises the first sense electrode, wherein X is less than M, and Y is less than or equal to N. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A touch processor, electrically coupled with a touch screen including M drive electrodes and N sense electrodes, wherein the touch processor executes the following steps:
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sequentially providing driving signals to all of the first conductive strips; while one first conductive strip is provided with a driving signal, detecting signals of the second conductive strips to obtain a first one-dimensional (1D) sensing information corresponding to the first conductive strip; generating a first two-dimensional (2D) sensing information based on all the first 1D sensing information; determining whether at least one external object is touching or approaching the touch screen based on the 2D sensing information; when determining at least one external object is touching or approaching the touch screen based on the 1D sensing information, the touch processor further executes the following steps; determining at least one first 1D coordinate and at least one second 1D coordinate of the touch screen touched or approached by at least one external object based on the first 2D sensing information; determining at least one mutual capacitive detection range based on the at least one first 1D coordinate and the at least one second 1D coordinate, and performing a mutual capacitive detection in the at least one mutual capacitive detection range to generate a second 2D sensing information corresponding to the at least one mutual capacitive detection range; and determining at least one third 1D coordinate and at least one fourth 1D coordinate based on the second 2D sensing information. - View Dependent Claims (18, 19, 20)
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Specification