A Biometric Access Control Device that is Inexpensive and Inviolable

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A novel flat pressure-sensitive array which underlies a display screen in a device, preferably having the dimensions of a smart phone. In an access control embodiment, the initial procedure would preferably take place in a secure environment: (1) an individual whose identity is known places preferably four fingertips of one hand upon the screen of the device, in a normal manner; (2) the contact points of each fingertip as well as the pressure thereat are measured by a proprietary program; (3) the program resolves each oval tip to a point; (4) the vectors and distances between those points are measured; (5) at least three trial sets of the fingertips of each known individual are taken, utilizing those same characteristics indicated above and from these data, the CPU computes an algorithm. Preferably the program that calculates the algorithm and the resulting algorithm would not be encrypted, but the algorithm would be transmitted to a secure computer over a secure line, and then scanned to assure that it contains only a certain type of data, before being treated as an identity authorization request.

The secure CPU, using secret formulae, computes a secret algorithm from the data of those sets, which algorithm becomes that individual's “authorized user template”; it remains in that secure database, to be compared with the algorithm of all future identity authorization requests


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  • Name:
    Harold Goldbaum
  • Type of entry:
  • Patent status: