Linear image sensing device with image matching function

Details Linear image sensing device with image matching function Linear image sensing device with image matching function

2006-03-16

2009-10-20

Kassa, Yosef (Department: 2624)

Image analysis

Image transformation or preprocessing

Combining image portions

C382S115000, C382S124000

Reexamination Certificate

active

07606440

ABSTRACT:
In a linear image sensing device with image matching function, a linear sensors array senses a finger, which is moving over it, to obtain fragment image analog signals, which are amplified, by a programmable gain amplifier, into amplified signals. An analog-to-digital converter sequentially converts the amplified signals into digital image signals. An image matching module sequentially receives and processes adjacent two of the digital image signals, and outputs continuous non-overlapped fragment images through an input/output interface. A control logic controls operations and communications of the above-mentioned components. A terminal system receives the non-overlapped fragment images and assembles the non-overlapped fragment images into a complete fingerprint image in a manner of stacking the images side by side.

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