The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Low Cost Personal Identification Verification Device Based on Finger Dimensions

IP.com Disclosure Number: IPCOM000050074D
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue


Related People

Svigals, J [+details]


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).