Patent ID: 8494032

Claim:
A network communications device capable of promoting connection quality, and comprising: a plurality of transmitting units, comprising: a first transmitting unit for outputting a first analog transmit-signal to another network communications device based on a first digital transmit-signal; and (n) transmitting units for outputting (n) analog transmit-signals to said another network communications device based on (n) digital transmit-signals, wherein (n) is a positive integer; a plurality of receiving units, comprising: a first receiving unit for outputting a first digital receive-signal based on a first analog receive-signal sent from said another network communications device; and (m) receiving units for outputting (m) digital receive-signals based on (m) analog receive-signals sent from said another network communications device, wherein (m) is a positive integer; an echo canceller for providing an echo canceling signal based on the first digital transmit-signal so as to cancel an echo in the first digital receive-signal; a near end crosstalk canceller for providing a near end crosstalk canceling signal based on the (n) digital transmit-signals so as to cancel near end crosstalk in the first digital receive-signal; a decoding circuit for generating a decoded signal based on the first digital receive-signal subsequent to cancellation of the echo and the near end crosstalk therein; a power-increasing control circuit for increasing operating power of said network communications device based on the first digital receive-signal so as to promote connection quality; and a far end crosstalk canceller for providing a far end crosstalk canceling signal based on the (m) digital receive-signals so as to cancel far end crosstalk in the first digital receive-signal; wherein said decoding circuit generates the decoded signal based on the first digital receive-signal subsequent to cancellation of the echo, the near end crosstalk and the far end crosstalk in the first digital receive-signal.