Communications terminal having a single transducer for handset a

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having bi-directional transducer

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381188, 379420, 379428, 379433, H04R 2500, H04M 100, H04M 900

Patent

active

057906793

ABSTRACT:
A wireless terminal for personal communication systems is provided with selective handsfree or handset receive mode of operation utilizing a single transducer. The transducer is mounted within a specially designed enclosure having front and back chambers each with strategically located acoustic ports for shaping the frequency response and providing good quality audio in each mode. Electronic equalization may be employed to further adjust the amplifier gain and shape the frequency response for dual mode operation.

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