Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate
2006-08-21
2010-11-09
Nguyen, Tuan D (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Housed microphone
C381S374000, C381S381000
Reexamination Certificate
active
07831058
ABSTRACT:
A microphone positioning structure is connected to an audio output device, and is composed of a sound tube, an end of which is connected with the audio output device; an earplug part which is located at a tail end of the aforementioned sound tube; an ear-hook part, an end of which is connected with the aforementioned sound tube. An end of the sound tube is plugged into the audio output device such as a trumpet or a loudspeaker, the ear-hook part is hung on a user's auricle for positioning, and the earplug part is inserted into the user's ear. In addition, while listening, the ear-hook part is hung and fixed on the user's auricle; therefore, the earplug part will not be subjected to a force, and it will not be fallen off due to a force of gravity and a shaking.
REFERENCES:
patent: 3851123 (1974-11-01), Lipinski et al.
JDI Jing Deng Industrial Co., Ltd.
Muncy Geissler Olds & Lowe, PLLC
Nguyen Tuan D
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