Method of correcting coin data and apparatus for inspecting coin

Details Method of correcting coin data and apparatus for inspecting coin Method of correcting coin data and apparatus for inspecting coin

1989-01-31

1990-08-28

Rolla, Joseph J.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

194303, 209571, 364579, G07F 302

Patent

active

049517996

ABSTRACT:
A method of correcting coin data and an apparatus for inspecting coins in which determination data is formed on the basis of data read out from a permanent memory, and authenticity and determination of coins are determined on the basis of the readout data. At the same time, maximum and minimum values corresponding to physical characteristics of coins are obtained. When the number of stored coins reaches a predetermined number or an operating time reaches a predetermined duration, the maximum and minimum values are updated. When such updating is performed a predetermined number of times, a standard deviation is also updated.

REFERENCES:
patent: 4538719 (1985-09-01), Gray et al.
patent: 4556140 (1985-12-01), Okada
patent: 4572349 (1986-02-01), Furuya et al.
patent: 4749074 (1988-06-01), Ueki et al.

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