Method of controlling the electric power supplied to a modem
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United States of America Patent
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-
Feb 26, 1991
Issued Date -
N/A
app pub date -
May 1, 1989
filing date -
Dec 2, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method is disclosed for controlling the supply or electric power to a modem in a data communication interface circuit. A power supplying and blocking circuit is additionally combined with the interface. The power supplying and blocking circuit which is controlled by a controller supplies only the controller and a ring detector of a data access circuit with the electric power when the interface circuit is placed in a stand-by mode. The modem is supplied with power only when transmitting or receiving data.
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