Data transmission device for random access network, with improved collision resolution, and corresponding method

摘要: A data processing station wherein a network interface monitors the transmission channel and generates event signals, e.g. “transmission start” “collision detected” “channel back to vacant condition”. If collision occurs in local transmission, is maintained with indication for at least one period before being cut off. An observation register receives signals responds by generating signal which may be OK” slot” “vacant slot”. When of fresh packet requested, first or not attempted (normal mode) depending on condition register. attempt unsuccessful (transmission refused collision), suitably reset mechanism incrementing/decrementing common integer determines right transmit, so that response request made regardless channel's operating record, upstream from last normal mode executed.