Earphone antenna

Details Earphone antenna Earphone antenna

2006-10-04

2010-11-23

Pérez-Gutiérrez, Rafael (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C381S074000, C381S370000

Reexamination Certificate

active

07840242

ABSTRACT:
An earphone antenna includes: earphone cords; an earphone portion; a coaxial cable; and a pin plug connector portion; wherein the earphone cords cooperate with a 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; wherein conductor lines constituting a core wire of the coaxial cable form signal lines for transmitting audio signals and a ground line; and wherein the coaxial cable is connected with a separation-superimposition circuit portion which is mounted at a side of the pin plug connector portion or at a side of a wireless electronic device and acts to separate the RF signals and the audio signals and to superimpose the audio signals.

REFERENCES:
patent: 4369521 (1983-01-01), Sawada
patent: 5581626 (1996-12-01), Palmer
patent: 7292705 (2007-11-01), Harano
patent: 2006/0166719 (2006-07-01), Arad et al.
patent: 9-199237 (1997-07-01), None
patent: 2003-163529 (2003-06-01), None

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