Image sensing device and exposure time adjusting method thereof
A technology of exposure time and image sensing, which is applied in image communication, print image collection, fingerprint/palmprint acquisition/sorting, etc., can solve the problems of exposure time adjustment failure, increased production cost, poor efficiency, etc., to avoid signal The effect of converting errors, improving efficiency, and reducing production costs
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[0012] figure 1 is a schematic diagram of an image sensing device according to an embodiment of the present invention, please refer to figure 1 . The image sensing device may include a light sensing unit 102 and an exposure time adjustment circuit 104 , and the light sensing unit 102 is coupled to the exposure time adjustment circuit 104 . The image sensing device can be, for example, a fingerprint sensor or an X-ray flat panel sensor, but is not limited thereto. The light sensing unit 102 can receive a light signal including image information to generate a sensing signal S1, and the image information can include fingerprint information or palmprint information. The exposure time adjustment circuit 104 is integrated into a chip connected to the light sensing unit 102, such as a fingerprint image reading chip, a fingerprint recognition algorithm chip, etc. limit.
[0013] The exposure time adjustment circuit 104 can adjust the exposure time of the photo-sensing unit 102 acc...
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