Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate
2006-02-02
2010-10-12
Ni, Suhan (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Housed microphone
C381S337000, C381S338000, C381S358000
Reexamination Certificate
active
07813519
ABSTRACT:
A microphone assembly includes a housing including at least one first tube in communication with at least one first cavity, at least one second tube in communication with at least one second cavity, one third tube in communication with at least one third cavity, and at least one microphone element separating the first, second and third cavities, wherein sound waves are received in the first, second, and third tubes and directed into the cavities and received by the microphone element. A method for converting sound waves into an electrical signal includes receiving the sound waves through at least three tube openings and directing the received sound waves along tube pathways into at least a first, second, and third cavity to a microphone separating the first, second, and third cavity. The method further includes converting the received sound waves into an electrical signal with the microphone.
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Earlite™ 1100/Step 1100 Bluetooth Earpiece, http://www.stepcommunications.com/products/earlite 1100.htm.
Step 1150™ Bluetooth® Wireless Headset, http://www.stepcommunications.com/products/step1150.htm.
General Motors LLC
Ni Suhan
Reising Ethington P.C.
Simon Anthony Luke
LandOfFree
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