Imaging device with sense and couple electrodes

Details Imaging device with sense and couple electrodes Imaging device with sense and couple electrodes

2011-06-14

2011-06-14

Werner, Brian P (Department: 2624)

Image analysis

Applications

Personnel identification

Reexamination Certificate

active

07961919

ABSTRACT:
An imaging device for sensing an image of an object includes a negative feedback amplifier, a substrate, a sense electrode, a couple electrode and an insulation protection layer. The sense and couple electrodes are disposed above the substrate. The insulation protection layer covers the sense and couple electrodes. The sense electrode and the object form a sense capacitor. The couple electrode and the object form a couple capacitor. A negative input terminal of the negative feedback amplifier is directly electrically connected to the sense electrode, and the couple electrode is directly electrically connected to one of a signal output terminal of the negative feedback amplifier and a signal input terminal of the imaging device.

REFERENCES:
patent: 2003/0099380 (2003-05-01), Gozzini
patent: 2008/0069413 (2008-03-01), Riedijk et al.

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