Fingerprint sensor apparatus and a method for controlling the fingerprint sensor apparatus
First Claim
1. A fingerprint sensor apparatus, comprising:
- a processor;
a sampling unit comprising an image sampling circuit and a sensor circuit, coupled to the processor, and configured to sense a fingerprint image;
an image analysing unit, coupled to the sampling unit and the processor, and the processor is configured to execute the image analysing unit to analyse an image parameter of the fingerprint image to obtain an image data, and compare the image data to a reference data to obtain a comparison result, wherein the comparison result comprises that the image data correspond to one of a plurality of stages,wherein the image parameter is one of a grayscale value, an image resolution, an image brightness, an image spectral distribution, an image discrepancy, an image relevancy and an image color depth of the fingerprint image, wherein the plurality of stages are determined according to the image parameter, and the plurality of different stages correspond to different pressure regions,wherein the processor is further configured to control an electronic device to execute a predetermined operation according to the stage corresponding to the image data, wherein the processor outputs a signal representative of a pressure value of a fingerprint according to the stage corresponding to the image data.
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Abstract
A fingerprint sensor apparatus including a sampling unit, an image analysing unit and a processor is provided. The sampling unit senses a fingerprint image. The image analysing unit analyses an image parameter of the fingerprint image to obtain an image data, and compares the image data to a reference data to obtain a comparison result. The comparison result includes that the image data corresponds to one of a plurality of stages. The stages are determined based on the image parameter, and the different stages correspond to different pressure regions. The processor controls an electronic device to execute a predetermined operation according to the stage corresponding to the image data. In addition, a method for controlling the fingerprint sensor apparatus is also provided.
34 Citations
14 Claims
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1. A fingerprint sensor apparatus, comprising:
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a processor; a sampling unit comprising an image sampling circuit and a sensor circuit, coupled to the processor, and configured to sense a fingerprint image; an image analysing unit, coupled to the sampling unit and the processor, and the processor is configured to execute the image analysing unit to analyse an image parameter of the fingerprint image to obtain an image data, and compare the image data to a reference data to obtain a comparison result, wherein the comparison result comprises that the image data correspond to one of a plurality of stages, wherein the image parameter is one of a grayscale value, an image resolution, an image brightness, an image spectral distribution, an image discrepancy, an image relevancy and an image color depth of the fingerprint image, wherein the plurality of stages are determined according to the image parameter, and the plurality of different stages correspond to different pressure regions, wherein the processor is further configured to control an electronic device to execute a predetermined operation according to the stage corresponding to the image data, wherein the processor outputs a signal representative of a pressure value of a fingerprint according to the stage corresponding to the image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling a fingerprint sensor apparatus, comprising:
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sensing a fingerprint image by a sampling unit comprising an image sampling circuit and a sensor circuit; executing the image analysing unit by a processor to analyse an image parameter of the fingerprint image to obtain an image data, and compare the image data to a reference data to obtain a comparison result, wherein the comparison result comprises that the image data correspond to one of a plurality of stages, wherein the image parameter is one of a grayscale value, an image resolution, an image brightness, an image spectral distribution, an image discrepancy, an image relevancy and an image color depth of the fingerprint image, wherein the plurality of stages are determined according to the image parameter, and the plurality of different stages correspond to different pressure regions; and outputting a signal representative of a pressure value of a fingerprint according to the stage corresponding to the image data and controlling an electronic device by the processor to execute a predetermined operation according to the stage corresponding to the image data. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification