Headset loop antenna

Details Headset loop antenna Headset loop antenna

2004-06-29

2008-08-12

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

Body-attached or connected

C343S744000, C343S870000, C455S575700

Reexamination Certificate

active

07411559

ABSTRACT:
A headset has a first and an optional second earpiece12, 16respectively coupled to a plug30via first and an optional second conductors14, 20, 18, 22. An antenna loop section36has a first loop section31at least partially bound to a portion of the first conductor20, and a second loop section33bound to at least a portion of the second conductor22. Where bound, the first conductor and first loop section may be coaxial or side-by-side. The loop sections include inductors42,44, and the conductors include ferrite rings38,40near the earpieces. A connector24mechanically holds the first and second conductors in proximity to one another, and also includes a conductive bridge34to electrically couple the first and second loop segments, which may be via a contact connection or a capacitive connection. Audio and RF signals are separated by frequency in a device50to which the headset is coupled.

REFERENCES:
patent: 2475641 (1949-07-01), Rosenberg
patent: 5438698 (1995-08-01), Burton et al.
patent: 5757332 (1998-05-01), Hanaoka et al.
patent: 6008761 (1999-12-01), Harano
patent: 6456246 (2002-09-01), Saito
patent: 6597320 (2003-07-01), Maeda et al.
patent: 6856288 (2005-02-01), Apostolos et al.
patent: 58-108879 (1983-06-01), None

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