Channel emulating device

A channel emulating device disposed between a testing device and a device-under-test, the channel emulating device receiving a first input signal and at least one second input signal, which are generated by the testing device, and generating and outputting a first output signal and at least one second output signal to the device-under-test, the channel emulating device comprising:

• a first choosing module having at least one first channel and at least one second channel, the first choosing module receiving the second input signal and outputting the second input signal through the first channel or the second channel;
• a first signal integrating module generating at least one first integrated signal in accordance with the first input signal and the second input signal outputted through the second channel of the first choosing module;
• a first parameter adjusting module generating at least one first parameter signal in accordance with the first integrated signal;
• a second parameter adjusting module generating at least one second parameter signal in accordance with the second input signal outputted through the first channel of the first choosing module;
• a second choosing module having at least one third channel and at least one fourth channel, the second choosing module receiving the second parameter signal and outputting the second parameter signal through the third channel or the fourth channel;
• a second signal integrating module generating a plurality of second integrated signals in accordance with the first parameter signal and the second parameter signal, and one of the plurality of second integrated signals acts as the first output signal;
• and
• a third choosing module having at least one fifth channel and at least one sixth channel, the third choosing module receiving the second parameter signal and outputting the second parameter signal through the fifth channel or receiving the rest of the plurality of second integrated signals and outputting the rest of the plurality of second integrated signals through the sixth channel to act as the second output signal.