Multiplex communications – Wide area network – Packet switching
Patent
1991-09-25
1993-11-16
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
307260, 363 87, H04J 306
Patent
active
052630277
ABSTRACT:
A multiplex transmitter-receiver system comprising a synchronizing signal generator for producing a plurality of multiplex transmission-receiving synchronizing signals from a three-phase alternating current, and a signal processor for effecting signal processing based on the synchronizing signals for transmitting and/or receiving a plurality of signals through a single signal transmission line. The signal generator comprises a polyphase rectangular wave generator for producing polyphase rectangular waves by shaping the waveform of the three-phase alternating current, and an arithmetic logic unit for producing a plurality of multiplex transmission-receiving synchronizing signals by logic elements based on combinations of the polyphase rectangular waves.
REFERENCES:
patent: 4086537 (1978-04-01), Asakawa et al.
patent: 4156275 (1979-05-01), Loberg
patent: 4164015 (1979-08-01), Espelage et al.
patent: 4329595 (1982-05-01), Watson
patent: 4599685 (1986-07-01), Hombu et al.
Jung Min
Nakanishi Metal Works Co. Ltd.
Olms Douglas W.
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