Transducer assembly for automatic message system

Details Transducer assembly for automatic message system Transducer assembly for automatic message system

1988-12-19

1990-05-15

Oberley, Alvin

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Driven diverse static structure

381197, H04R 906

Patent

active

049264869

ABSTRACT:
An automatic message system employs a transducer to provide sound reproduction through a sounding surface which is isolated from the environment, as in museum display cases and the like or in outdoor displays. The sounding surface can be any semicompliant surface, including glass, and the system can be switched by means of a remote sensor which may act through the sounding surface. The device may be removably mounted on the sounding surface by use of suction cups or other devices. The sound reproduction system eliminates conventional speaker diaphragms, which may be damaged by weather or abuse. A stiff inverted cone is used to transmit the sound vibrations from the voice coil of the transducer directly to the sounding surface for amplification.

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