Entertainment machines that have built in facility for communication with remote central unit over network has integral modem plugged into circuit board of central unit

摘要

Entertainment machines, e.g. music players, has a remote connection to a central unit (2) that has an integral modem (12) plugged into circuit board of central unit, connected to telephone connection (14) for bidirectional communication. A number of distributed units may be connected in this way. The central unit has peripherals such as keys, indicators, money checkers.