Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2006-06-13
2006-06-13
Le, Huyen (Department: 2646)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S370000, C381S382000
Reexamination Certificate
active
07062059
ABSTRACT:
A headset microphone boom that includes a hollow tubular member with a reflective interior surface. A light disperser is coupled to the hollow tubular member at one end and a light emitting device is coupled to the hollow tubular member at the other end. Light is transmitted from the light emitting device through the hollow tubular member to the light disperser. Sound waves are simultaneously transmitted from an acoustic port through the hollow tubular member to a microphone.
REFERENCES:
patent: 5210791 (1993-05-01), Krasik
patent: 5608794 (1997-03-01), Larson
patent: 2005/0129259 (2005-06-01), Garner
Chuang Thomas
Le Huyen
Plantronics, Inc
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