Patent ID: 7840242

Claim:
An earphone antenna comprising: earphone cords having a first end side and a second end side; an earphone portion having earphones at the first end side of the earphone cords, and an earphone connector element at the second end side of the earphone cords; a coaxial cable having a core wire including at least two conductor lines kept electrically insulated from each other, a shielded line electrically shielded from the core wire, a connector body interconnecting the conductor lines and the earphone cords, the earphone connector element being withdrawably attached to a first end side of the coaxial cable, a pin plug connector portion mounted at a second end side of the coaxial cable, the pin plug connector portion being connectable to a mobile wireless electronic device, and a separation-superimposition circuit portion housed in the pin plug connector portion of the coaxial cable and which acts to separate RF signals and audio signals and to superimpose the audio signals, wherein the earphone cords cooperate with the shielded line of the coaxial cable using a connection point with the coaxial cable as a feeding point to constitute an antenna for receiving RF signals, and wherein the conductor lines constituting the core wire of the coaxial cable form signal lines for transmitting audio signals and form a ground line.