Low Cost Personal Identification Verification Device Based on Finger Dimensions
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10
As described in U.S. Patent 3,576,537, finger dimensions provide a simple low cost verification of the identity of a person representing to be a particular person. In this article, a person's hand, illuminated from above, is placed on a matrix of optical sensors, the little finger against a side plate and the middle finger touching a back plate. Finger dimensions are determined from the pattern of covered sensors and are compared with stored dimensions known to be correct for the authorized account holder, for example. Indent points between the fingers are used as the critical measurement points to avoid variations in finger length (e.g., fingernail growth).