Check-actuated control mechanisms – Including means to test validity of check – Having means to test size
Patent
1985-09-05
1987-03-03
Bartuska, F. J.
Check-actuated control mechanisms
Including means to test validity of check
Having means to test size
250223R, G07D 502
Patent
active
046469044
ABSTRACT:
A coin sizing circuit and method of operation therefor for use with a coin-operated vending system for distinguishing between various deposited coins as they travel along a predefined path, comprising first and second spaced sensors positioned to detect the movement of a deposited coin thereby, the sensors being responsive to movement of the deposited coin to produce an initial sensing status signal and two further sensing status signals as the coin moves along the predefined path by the sensors and reaches particular positions relative thereto, a memory having predetermined coin sizing data stored therein, and processing circuitry, preferably a programmed microprocessor, operatively connected to the sensors to receive the sensing status signals produced thereby and also operatively connected to the memory to permit the retrieval therefrom of the data stored therein. The processing circuitry is responsive to production of the initial sensing status signal and the first occurring of the two further sensing status signals to establish a time window interval, and is subsequently responsive to production within the time window interval of the second occurring of the two further sensing status signals so as to distinguish a coin whose movement past the sensors effects production within the time window interval of the second occurring of the two further sensing status signals from other coins whose movements past the sensors effect productions of the second occurring of the two further sensing status signals at times outside of the time window interval.
REFERENCES:
patent: 4474281 (1984-10-01), Roberts et al.
patent: 4509633 (1985-04-01), Chow
patent: 4585936 (1986-04-01), Sellier
Bartuska F. J.
Coin Acceptors, Inc.
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