Patent ID: 8140114

Claim:
A receiving device comprising: a main unit; a conjunction cable detachably connectable to the main unit, the conjunction cable comprising a covered wired and a core-wire-side cable contained within the covered wire, the core-wire-side cable configured for transmitting a signal, the core-wire-side cable having insulated signal and ground potential carrying wires therein, each signal wire carrying a relatively low frequency signal, the ground potential wire carrying a ground potential, the covered wired comprising a conductive portion that surrounds the core-wire-side cable and an insulating layer sheathing the covered wire, the conductive portion of the covered wired acting as an electrical shield for the insulated signal and ground potential carrying wires; a low-pass filter between each insulated signal carrying wire and a respective signal source in the main unit; a low-pass filter between the ground potential carrying wire and a ground potential; a low-pass filter between the ground potential carrying wire and the conductive portion of the covered wire; and a tuner unit that receives a broadcast signal in a first frequency band corresponding to a length of the covered wire and a broadcast signal in a second frequency band corresponding to the length of the core-wire-side cable, the tuner unit being connected to a main-unit-side end of the covered wire, the conductive portion of the covered wired and the insulated ground potential carrying wire serving as antennae.