In-phase noise suppression device

An in-phase noise suppression device comprising:

• a signal transmitting unit including a number (N) of signal transmitting circuits, where N≥3, each of said signal transmitting circuits having an input terminal and an output terminal, receiving a level signal at said input terminal thereof, and outputting the level signal at said output terminal thereof, said signal transmitting circuits cooperatively constituting at least two signal transmitting circuit sets, each of said signal transmitting circuits being assigned to at least one of said signal transmitting circuit sets, each of said signal transmitting circuit sets including at least two of said signal transmitting circuits, and forming a signal transmitting channel for transmitting a balanced digital signal;
• and
• a grounding unit including a grounding circuit that is connected to said signal transmitting unit;
• wherein the level signals respectively received by said signal transmitting circuits at said input terminals thereof, when being respectively transmitted along said signal transmitting circuits, generate at least two balanced digital signals and in-phase noise;
• wherein said signal transmitting unit and said grounding circuit cooperatively constitute a noise suppression device so as to suppress the in-phase noise generated in said signal transmitting circuits;
• wherein each of said signal transmitting circuits includes a signal transmitting conductor that is connected to said input and output terminals of said signal transmitting circuit;
• wherein said signal transmitting unit further includes a reference conductor that is electromagnetically coupled to said signal transmitting conductors of said signal transmitting circuits and that is connected to said grounding circuit;
• and
• wherein, with respect to each of said signal transmitting circuit sets, net coupling between said signal transmitting conductors of said signal transmitting circuits of said signal transmitting circuit set and the reference conductor is substantially zero.