Power-saving full duplex nodal communications systems
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United States of America Patent
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Oct 25, 1994
Grant Date -
N/A
app pub date -
May 15, 1992
filing date -
May 15, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inter-nodal communication system employs full duplex transmission links to connect asynchronously operating nodes. Links between nodes are quiesced to a no-current flow state in the absence of message traffic. The system employs a communication protocol that incorporates time-outs which (1) enable a broken link to be detected at the inception of a message and (2) prevent a receiver from listening to a link which has been quiesced by a transmitter at the other end of a link that is shutting-off. All synchronization messages in the inter-nodal communication network are carried by data links and no additional communication wires are required.
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