Procedure for processing electrical signals used in verifying co

Details Procedure for processing electrical signals used in verifying co Procedure for processing electrical signals used in verifying co

1993-05-28

1994-11-29

Huppert, Michael S.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

G07D 508

Patent

active

053681495

ABSTRACT:
Procedure for verifying coins in which an analog electrical signal is generated when a coin passes in front of a sensor. This signal is subjected to analog-digital conversion. In a first filtration step, each of the measured digital values (D.sub.n) obtained in this manner is compared with at least one value (S.sub.1 to S.sub.n) stored in a memory. In the event of predetermined conditions being met or not being met, the average digital value (D.sub.n) is either stored or eliminated.

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