Multiplex communications – Wide area network – Packet switching
Patent
1982-04-23
1985-02-05
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 312
Patent
active
044981708
ABSTRACT:
A time divided digital signal transmission system includes a transmitter for converting plural analog signals to digit signals, generating multiplexed time divided signals from the digital signals, and transmitting the multiplexed time divided signals by a digital data transmission circuit. The system further includes a receiver for receiving the multiplexed time divided signals, demultiplexing the multiplexed time divided signals so as to thereby obtain the original digital signals and converting the original digital signals back into the original analog signals. The system is arranged to effectively utilize both synchronizing signals and clock signals for the analog to digital conversion and the digital to analog conversion in the system.
REFERENCES:
patent: 3710056 (1973-01-01), Tomozawa
patent: 3872255 (1975-03-01), Nance et al.
patent: 4313033 (1982-01-01), Walker et al.
patent: 4325139 (1982-04-01), Van Dine
IEEE Transactions on Communications, vol. COM-26, #11, (Nov. 1978), Auger et al., The Space Shuttle Ground Terminal Delta Modulation System.
Kaneko Mamoru
Nakayama Kenjiro
Nishimura Tadafumi
Noguchi Toyota
Okamoto Michio
Matsushita Electric - Industrial Co., Ltd.
Olms Douglas W.
Rokoff Kenneth I.
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