Apparatus and method for communicating voice and data between a customer premises and a central office
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United States of America Patent
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Oct 31, 2006
Grant Date -
Sep 16, 2004
app pub date -
Mar 29, 2004
filing date -
Dec 17, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods are provided for communicating data over a subscriber loop using a modem. One such method includes: transmitting data on the loop in a first frequency band; sensing an indication that simultaneous transmission on the loop in a POTS frequency band is imminent; and adjusting transmit power in the first band, in response to the sensing step. One such system includes an input/output connection in communication with the loop, a processor operable in at least two states, a means for sensing demand for simultaneous usage of the loop, and a means for controlling the state. The first state is characterized by a first transmit power spectrum in the first band. The second state is characterized by a second transmit power spectrum in the first band, reduced relative to the first spectrum. Upon sensing demand, the control means causes the processor to operate in the second state.
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