Surface shape sensor, identification device using this sensor, a

Details Surface shape sensor, identification device using this sensor, a Surface shape sensor, identification device using this sensor, a

1996-07-10

1998-04-28

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

382312, 178 18, 235380, H04Q 100

Patent

active

057450463

ABSTRACT:
A device for performing identification by sensing the fingerprint of a finger includes an input unit. The input unit is constituted by a plurality of linear contact electrodes formed on a substrate, and a pressure-sensitive sheet formed on the linear contact electrodes and a resistance thereof changes in accordance with a pressure applied thereto. When the finger touches the surface of the pressure-sensitive sheet, a change in resistance is caused between the electrodes, and this change is converted to data of a one-dimensional electrical signal distribution. The obtained data is compared with registered data, thereby performing identification. The time required for signal processing necessary in the identification device can be decreased.

REFERENCES:
patent: 4032889 (1977-06-01), Nassimbene
patent: 4210899 (1980-07-01), Swonger
patent: 4353056 (1982-10-01), Tsikos
patent: 4577345 (1986-03-01), Abramov
patent: 5079949 (1992-01-01), Tamori
patent: 5180901 (1993-01-01), Hiramatsu
patent: 5559504 (1996-09-01), Itsumi

Affiliated with

Also associated with

Rating

Surface shape sensor, identification device using this sensor, a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface shape sensor, identification device using this sensor, a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface shape sensor, identification device using this sensor, a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1536264