Method and apparatus for tooth bone conduction microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Body contact wave transfer

Reexamination Certificate

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C381S326000

Reexamination Certificate

active

07486798

ABSTRACT:
A two-way communication system particularly valuable for noisy environments where a user has a tooth bone conduction microphone in his mouth normally controlled by a tongue switch that transmits an electrical signal representing speech to a retransmit module usually worn on the user's body or mounted on an earphone or headset where the speech electrical signal is retransmitted to a second user usually by RF. The retransmit module can also receive signals from the second user and transmit them to the earphone or headset thus providing two-way communication.

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