Pressure transducing apparatus for use in a signature identifica

Details Pressure transducing apparatus for use in a signature identifica Pressure transducing apparatus for use in a signature identifica

1975-12-29

1977-02-15

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

73432R, 336130, G06K 900

Patent

active

040084574

ABSTRACT:
A pressure transducing apparatus which is responsive to the pressure variations which are produced when an individual signs his signature, for generating an electrical signal representative of such characteristic pressure variations for use in a signature identification system. The apparatus employs a handwriting surface which is positioned for receiving the handwritten signature by a pair of soft rubber supports. A permanent magnetic bar is affixed to the underside of the writing surface and is vertically displaced as the pressure applied to the writing surface is varied. A magnetic sensing coil is positioned around the path of vertical displacement of the permanent magnetic bar such that an electrical current is generated in the sensing coil in response to the displacement of the permanent magnetic member so as to provide an electrical signal which is representative of the characteristic pressure variations produced when an individual writes his signature.

REFERENCES:
patent: 3170987 (1965-02-01), O'Brien
patent: 3199078 (1965-08-01), Gaffney, Jr. et al.
patent: 3480911 (1969-11-01), Danna
patent: 3618019 (1971-11-01), Nemirovsky et al.
patent: 3621720 (1971-11-01), Clark
patent: 3781798 (1973-12-01), Hinks

Affiliated with

Also associated with

Rating

Pressure transducing apparatus for use in a signature identifica does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure transducing apparatus for use in a signature identifica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure transducing apparatus for use in a signature identifica will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1439198