Servo valve loudspeaker

Details Servo valve loudspeaker Servo valve loudspeaker

1991-04-22

1992-08-18

Ng, Jin F.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

381165, 381153, 340404, 340405, H04R 2500

Patent

active

051406411

ABSTRACT:
Low frequency, high intensity sound is produced using a conduit having a flow of high velocity and low pressure air. A pair of sound ports are provided in the conduit, and a rotary valve connected to a reversible servomotor and audio source is employed to direct the flow of air toward and away from the ports.

REFERENCES:
patent: 3936606 (1976-02-01), Wanke
patent: 4649853 (1987-03-01), Powell
patent: 4763358 (1988-08-01), Danley
patent: 4847590 (1989-07-01), Gosswiller

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