| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an improved digital subscriber line communication system. Ž<P>SOLUTION: A modem for use in digital subscriber line communication transmits and receives data over a local subscriber loop, in common with voice information over the loop, while avoiding the need for voice/data splitters. The modem responds to disruptions associated with "disturbance events", such as on-hook to off-hook transitions and the like, by rapidly switching between pre-stored channel parameter control sets defining communications over the loop under varying conditions. In addition to changing parameter control sets, in response to the disturbance event, the modem can also change the transmission power levels and other system parameters, such as the frequency domain or equalizer characteristics. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
