Signal transceiver circuit

摘要

The present invention provides a signal transceiver circuit including a band-stop filter, a first band-pass filter, and a second band-pass filter. The band-stop filter blocks signals between a first frequency and a second frequency for letting signals outside of the first frequency and the second frequency of the first multi-channel signal and the second multi-channel signal pass. The first band-pass filter blocks signals output by the band-stop filter outside of a third frequency and a fourth frequency for letting signals output by the band-stop filter between the third frequency and the fourth frequency pass. The second band-pass filter blocks signals outside of a fifth frequency and a sixth frequency of the first multi-channel signal and the second multi-channel signal for letting signals between the fifth frequency and the sixth frequency of the first multi-channel signal and the second multi-channel signal pass.

主权项

1. A signal transceiver circuit, comprising:
a signal transceiver terminal, arranged to receive one of a first multi-channel signal and a second multi-channel signal, and to transmit the received first multi-channel signal and the received second multi-channel signal to a first node; a band-stop filter, having an output terminal and an input terminal coupled to the first node, and arranged to block the one of the first multi-channel signal and the second multi-channel signal between a first frequency and a second frequency for letting signals outside of the first frequency and the second frequency of the one of the first multi-channel signal and the second multi-channel signal pass; a first band-pass filter, having an output terminal and an input terminal coupled to the output terminal of the band-stop filter, and arranged to block signals output from the band-stop filter outside of a third frequency and a fourth frequency for letting signals output by the band-stop filter between the third frequency and the fourth frequency pass; and a second band-pass filter, having an output terminal and an input terminal coupled to the first node, and arranged to block the one of the first multi-channel signal and the second multi-channel signal outside of a fifth frequency and a sixth frequency for letting signals between the fifth frequency and the sixth frequency of the one of the first multi-channel signal and the second multi-channel signal pass; wherein the frequency band of a first signal of the first multi-channel signal and the second multi-channel signal is between the first frequency and the second frequency, the frequency band of a second signal of the first multi-channel signal is between the first frequency and the third frequency, and the frequency band of a third signal of the second multi-channel signal is between the second frequency and the fourth frequency, wherein the first multi-channel signal comprises the first signal and the second signal, the second multi-channel signal comprises the first signal and the third signal, the second frequency is higher than the first frequency, the fourth frequency is higher than the third frequency, the first frequency is higher than the third frequency, and the second frequency is lower than the fourth frequency.