Modem with remote speed-change capability
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United States of America Patent
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Sep 11, 1990
Grant Date -
N/A
app pub date -
May 25, 1988
filing date -
May 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A modem which can automatically switch between protocols at different signalling rates. The protocal with non-standard signalling rates has a training sequence which initially has distinctive frequency-domain characteristics. Thus, as soon as one modem begins to send a training sequence, the other modem can distinguish which training sequence has been started. Thus, speed changes between protocols at different signalling rates can be remotely initiated.
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