CHANNEL DETECTION METHOD AND SYSTEM THEREOF

摘要

A channel detection method for an echo canceller of a communication device is provided. The method includes the following steps. A first detection signal is transmitted to an end of a channel coupled to the communication device. A plurality of taps corresponding to a reflected signal of the first detection signal are received by an echo canceller at the end of the channel. The taps corresponding to the reflected signal are compared with a reference value corresponding to each of the taps so as to determine whether each of the taps is larger than or equal to the corresponding reference value. When the tap is determined to be larger than or equal to the reference value corresponding to the tap, the tap and a position of the tap are recorded.

主权项

1. A channel detection method for at least one echo canceller of a communication device, comprising:
transmitting a first detection signal to an end of a channel coupled to said communication device; receiving, by said at least one echo canceller, a plurality of taps corresponding to a reflected signal of said first detection signal at said end of said channel; comparing each of said plurality of taps corresponding to said reflected signal with a corresponding reference value so as to determine whether each of said plurality of taps is larger than or equal to said corresponding reference value; and recording one of said plurality of taps and a position of said one of plurality of taps when said one of said plurality of taps is determined to be larger than or equal to said corresponding reference value.