Portable audio listening apparatus

Details Portable audio listening apparatus Portable audio listening apparatus

2007-02-20

2007-02-20

Mei, Xu (Department: 2615)

Electrical audio signal processing systems and devices

One-way audio signal program distribution

C381S079000, C381S074000

Reexamination Certificate

active

09705035

ABSTRACT:
A portable audio listening apparatus includes, for example, a portable audio playback apparatus serving as a portable transmission apparatus and a headphone serving as a portable receiving apparatus. The portable audio playback apparatus has an electrode at its side. The headphone includes an ear pad made from an electrically conductive material and an electric-circuit unit. The ear pad serves as an electrode and is connected to the electric-circuit unit by wiring. The electric-circuit unit includes a signal processing circuit and a battery. When the user wears the portable audio playback apparatus and the headphone, a transmission path is formed through the body of the user. A signal reproduced by the portable audio playback apparatus is sent through the body of the user and the ear pad to the electric-circuit unit of the headphone.

REFERENCES:
patent: 4450495 (1984-05-01), Naruki
patent: 5247293 (1993-09-01), Nakagawa
patent: 5444768 (1995-08-01), Lemaire et al.
patent: 5551065 (1996-08-01), Honore
patent: 5796827 (1998-08-01), Coppersmith et al.
patent: 5914701 (1999-06-01), Gersheneld et al.
patent: 6118882 (2000-09-01), Haynes
patent: 6285867 (2001-09-01), Boling
patent: 7-170215 (1995-04-01), None

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