Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Patent
1988-02-10
1990-02-20
Ng, Jin F.
Electrical audio signal processing systems and devices
Hearing aids, electrical
Specified casing or housing
181153, 181164, 181166, 181171, 181172, 181173, 381153, 381185, 381186, 381193, 381194, 381195, H04R 702, H04R 102, H04R 712, H04R 904
Patent
active
049033085
ABSTRACT:
An improved audio transducer includes a diaphragm having a pair of cylindrically-shaped webs that provide greater bandwidth, reduced distortion and greater horizontal dispersion of sound. The audio output of the transducer is further improved by forming the diaphragm of a polyvinyl fluoride film. Other improvements include the use of damping pads to damp internal sound waves and damping strips on the diaphragm to minimize distortion at the resonant frequency of the transducer.
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"Tedlar PVF Film," Du Pont Company Fabricated Products Department, E-42048 (6/87).
Geist Steven R.
Paddock Paul W.
Byrd Danita R.
Linaeum Corporation
Ng Jin F.
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