Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate
2004-12-22
2008-05-27
Ensey, Brian (Department: 2615)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Plural or compound reproducers
C381S370000
Reexamination Certificate
active
07379557
ABSTRACT:
A headset includes a body and an earphone securely connected to the body. An auxiliary positioning device is provided on the body so that, after the earphone is inserted into an ear channel and the auxiliary positioning device is urged against a concha cartilage, the headset is positioned.
REFERENCES:
patent: 6819762 (2004-11-01), Jones et al.
AirDigit Incorporation
Ensey Brian
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