Array sensor and sensing method thereof
First Claim
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1. An array sensor, comprising:
- a sensing array comprising a plurality of sensing units, wherein each of the sensing units comprises a sensing electrode;
a memory array comprising a plurality of memory units, wherein each of the memory units is disposed below or adjacent to the corresponding sensing unit and is configured to store sensing data of the corresponding sensing unit;
an amplifier, comprising two input terminals and one output terminal, wherein one of the input terminals is coupled to the sensing array, the other of the input terminals is coupled to the memory array and the output terminal is coupled to a processor, configured to non-simultaneously access the sensing array and the memory array, wherein for each of the sensing units in the sensing array, the amplifier reads a sensing value of the sensing electrode of the sensing unit from the sensing array and outputs the sensing value to the processor, and reads the sensing data from the corresponding memory unit of the memory array and outputs the sensing data to the processor, wherein the sensing value and the sensing data do not co-exist in the amplifier; and
the processor, configured to, for each of the sensing units in the sensing array, generate a sensing result according to the sensing value of the sensing electrode of the sensing unit and the sensing data in the corresponding memory unit and produce a fingerprint pattern according to the sensing results.
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Abstract
An array sensor is provided. The array sensor includes a sensing array, a memory array, and an access module. The sensing array includes a plurality of sensing units, wherein each of the sensing units includes a sensing electrode. The memory array includes a plurality of memory units, wherein each of the memory units is disposed below the corresponding sensing unit or between the two adjacent sensing units. The access module selectively reads a sensing value of the sensing electrode of the sensing unit to provide a sensing output, or accesses the memory unit.
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18 Claims
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1. An array sensor, comprising:
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a sensing array comprising a plurality of sensing units, wherein each of the sensing units comprises a sensing electrode; a memory array comprising a plurality of memory units, wherein each of the memory units is disposed below or adjacent to the corresponding sensing unit and is configured to store sensing data of the corresponding sensing unit; an amplifier, comprising two input terminals and one output terminal, wherein one of the input terminals is coupled to the sensing array, the other of the input terminals is coupled to the memory array and the output terminal is coupled to a processor, configured to non-simultaneously access the sensing array and the memory array, wherein for each of the sensing units in the sensing array, the amplifier reads a sensing value of the sensing electrode of the sensing unit from the sensing array and outputs the sensing value to the processor, and reads the sensing data from the corresponding memory unit of the memory array and outputs the sensing data to the processor, wherein the sensing value and the sensing data do not co-exist in the amplifier; and the processor, configured to, for each of the sensing units in the sensing array, generate a sensing result according to the sensing value of the sensing electrode of the sensing unit and the sensing data in the corresponding memory unit and produce a fingerprint pattern according to the sensing results. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A sensing method for an array sensor, wherein the array sensor comprises a sensing array comprising a plurality of sensing units, a memory array comprising a plurality of memory units, an amplifier comprising two input terminals and one output terminal and a processor, wherein each of the sensing units comprises a sensing electrode, and each of the memory units is disposed below or adjacent to the corresponding sensing unit, wherein one of the input terminals of the amplifier is coupled to the sensing array, the other of the input terminals of the amplifier is coupled to the memory array and the output terminal of the amplifier is coupled to the processor, and wherein the sensing method comprises:
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non-simultaneously accessing the sensing array and the memory array to, for each of the sensing units in the sensing array, read a sensing value of the sensing electrode of the sensing unit from the sensing array and output the sensing value to the processor by the amplifier, and read the sensing data from the corresponding memory unit of the memory array and output the sensing data to the processor by the amplifier, wherein the sensing value and the sensing data do not co-exist in the amplifier; and for each of the sensing units in the sensing array, generating a sensing result according to the sensing value of the sensing electrode of the sensing unit and the sensing data in the corresponding memory unit and producing a fingerprint pattern according to the sensing results by the processor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification