Driver circuit for a contact imaging array

Details Driver circuit for a contact imaging array Driver circuit for a contact imaging array

1996-03-04

1998-07-07

Boudreau, Leo H.

Image analysis

Applications

Personnel identification

34082534, 250556, G06K 900

Patent

active

057780897

ABSTRACT:
A fingerprint sensing device and recognition system includes an array of closely spaced apart sensing elements each comprising a sensing electrode and an amplifier circuit. The device is used to sense electrical charge on a fingertip and obviates the need to pre-charge the sensing electrode. The device may be constructed with a single die or with multiple dies.

REFERENCES:
patent: 3781855 (1973-12-01), Killen
patent: 4429413 (1984-01-01), Edwards
patent: 4695716 (1987-09-01), Tandon et al.
patent: 5079949 (1992-01-01), Tamori
patent: 5325442 (1994-06-01), Knapp
patent: 5373181 (1994-12-01), Scheiter et al.
patent: 5400662 (1995-03-01), Tamori
Mosley et al, "CCD Imaging Arrays", EDN Special Report, v35, n17, p. 116 (10), Aug. 20, 1990.

Affiliated with

Also associated with

Rating

Driver circuit for a contact imaging array does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driver circuit for a contact imaging array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driver circuit for a contact imaging array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1215268