Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2006-06-20
2006-06-20
Le, Hoanganh (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S718000, C343S823000
Reexamination Certificate
active
07064720
ABSTRACT:
An earphone antenna has an earphone unit including an earphone, an earphone cable for supplying audio signals to the earphone, and a first pin jack connector portion on one end of the earphone cable, the earphone cable functioning as an antenna wire. The earphone antenna further includes a shielded cable having a coaxial core, an insulation-covered signal wire for audio signals, and a ground wire. The coaxial core has a center conductor for transmitting high frequency signals surrounded by an insulator and further surrounded by a shield wire. A multi-pole connector arranged on one end of the shielded cable is adapted to electrically connect the shielded cable to an electronic apparatus. A connection block connects the other end of the shielded cable to the earphone unit, the connection block including a circuit device for separating audio signals and high frequency signals, and a second pin jack connector portion for removably receiving the first pin jack connector portion to removably connect the earphone unit to the connection block.
REFERENCES:
patent: 5757332 (1998-05-01), Hanaoka et al.
patent: 6356773 (2002-03-01), Rinot
patent: 2003/0160725 (2003-08-01), Baxter et al.
patent: 2004/0142676 (2004-07-01), Sim et al.
patent: 2006/0014560 (2006-01-01), Yoshino
patent: 2 380 861 (2003-04-01), None
patent: 59-89004 (1984-05-01), None
patent: 07-298384 (1995-11-01), None
patent: 2003-163529 (2003-06-01), None
patent: 2005-064742 (2005-03-01), None
Le Hoang-anh
Lerner David Littenberg Krumholz & Mentlik LLP
Sony Corporation
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