Multiplex communications – Wide area network – Packet switching
Patent
1984-07-24
1986-03-18
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
455 58, 455 68, 455 70, 34082544, H04J 316, H04B 100, H04B 700, G08B 522
Patent
active
045773157
ABSTRACT:
In a time-division multiple access (TDMA) communication network, a power saving system interleaves a power saving control signal at periodic intervals with a selection signal and information signals and transmits the interleaved signals from a master station to slave stations. A plurality of power cut-off circuits are associated respectively with the slave stations for individually cutting off power supplies to the slave stations for a predetermined period in response to the control signal. A detector is provided for detecting the moment a connection is being established, identifying the slave station establishing the connection and selectively inhibiting the power cut-off circuit associated with the identified station from responding to the control signal, while allowing the remainder of the power cut-off means to respond to the control signal.
REFERENCES:
patent: 4245347 (1981-01-01), Hutton et al.
patent: 4367557 (1983-01-01), Stern et al.
patent: 4369443 (1983-01-01), Giallanza et al.
patent: 4424514 (1984-01-01), Fennell et al.
patent: 4506386 (1985-03-01), Ichikawa et al.
patent: 4509199 (1985-04-01), Ichihara
Chin Wellington
NEC Corporation
Olms Douglas W.
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