Directional microphone assembly

Details Directional microphone assembly Directional microphone assembly

1983-11-25

1985-07-09

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

179179, 381 88, H04R 128

Patent

active

045284261

ABSTRACT:
A directional microphone assembly in which an electroacoustic transducer housed in a capsule, having a directional response characteristic, is mounted in the assembly housing and surrounded by an acoustically transparent foam covering. As a result acoustic waves reflected off surfaces of the housing are dispersed so as to minimize the effect of the surfaces on the directional response characteristic.

REFERENCES:
patent: 3536862 (1970-10-01), Weingartner
patent: 3560668 (1971-02-01), Warning
patent: 4127751 (1978-11-01), Kinoshita
patent: 4151378 (1979-04-01), Watson
patent: 4151777 (1979-05-01), Sugiyama et al.
patent: 4168762 (1979-09-01), Griffin, Jr.
patent: 4174469 (1979-11-01), Kusuyama
patent: 4340787 (1982-07-01), Gorike
"New Audio Test Report-Electro-Voice Unidirectional Mike", Electronics World, p. 114.
"A New Cardioid Microphone", Tele Tech and Electronic Industries, Oct. 1955, pp. 70-72.

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