Control system for a coin-operated musical machine

Details Control system for a coin-operated musical machine Control system for a coin-operated musical machine

1975-08-11

1976-10-12

Tollberg, Stanley H.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

340162, G07F 1700

Patent

active

039852172

ABSTRACT:
A control system for the selection and storage of each phonograph record side to be played in a coin-operated juke box having a storage and credit mechanism. A microcomputer operating as a process computer has a number of inputs and outputs limited to a minimum by series-type runs. The microcomputer has a central computer unit, a set-value storage, and a write/read storage with selective access. The microcomputer unit, furthermore, is coupled with a clock or timing generator connected to a BCD for 1 out of 10 decoder, to a BCD for 7-segment decoder, to a BCD for 1 out of 16 decoder, and via these decoders to level converters with series-connected output units and input circuits in the form of a coding table, keyboard, input switch and coin switch.

REFERENCES:
patent: 3555509 (1971-01-01), Arsem
patent: 3701970 (1972-10-01), Jachimek et al.
patent: 3718906 (1973-02-01), Lightner

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