Reversible electroacoustic transducer device having a constant d

Details Reversible electroacoustic transducer device having a constant d Reversible electroacoustic transducer device having a constant d

1979-11-02

1982-02-02

Stellar, George G.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

179 1DM, 181175, 367151, H04R 120

Patent

active

043140980

ABSTRACT:
A device capable of operating over a wide frequency band with a constant angular width of the radiation lobe of elastic waves. It comprises in combination at least one omnidirectional reversible electroacoustic transducer and an assembly of reflecting surfaces of zero acoustic impedance which define a space inside which said transducer is arranged.

REFERENCES:
patent: 2544536 (1951-03-01), Kettler
patent: 2922140 (1960-01-01), Levine et al.
patent: 3243768 (1966-03-01), Roshon, Jr. et al.
patent: 3302163 (1967-01-01), Andrews
patent: 3502811 (1970-03-01), Schroeder et al.
Journal of the Acoustical Society of America, vol. 40, No. 6, 1966, pp. 1556-1557, Letters to the Editor, Unique Directional Reflectors for Omnidirectional Underwater Acoustic Transducers, A. A. Crews et al.
Audio Engineering, Mar. 1950, pp. 16-17, A Symmetrical Corner Speaker, Gilson et al.

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