Multiplex communications – Wide area network – Packet switching
Patent
1987-05-29
1988-11-22
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
455 6, 381 2, H04J 312
Patent
active
047870850
ABSTRACT:
A digital signal transmitting system includes a plurality of digital signal reproducers, each outputting a digital data signal to be time-division multiplexed; a digital signal multiplexer supplied with a frame synchronizing signal, a service bit signal and the output digital signals from the reproducers and for producing a block data signal including the frame synchronizing signal, the service bit signal and a plurality of slot data bits arranged with the digital data signals, each one bit within a multiple-frame, in which the service bit signal is indicative of the transmission mode and the slot data associated with each of the plurality of digital data signals being transmitted.
REFERENCES:
patent: 3985965 (1976-10-01), Field et al.
patent: 4380064 (1983-04-01), Ishikawa et al.
patent: 4554658 (1985-11-01), Marten et al.
Fukami Takeshi
Sakamoto Akira
Sugiyama Hisayoshi
Suto Kohichi
Terauchi Toshiro
Nippon Telegraph and Telephone Corporation
Olms Douglas W.
Scutch III Frank M.
Sony Corporation
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