Personal amplifier system

Details Personal amplifier system Personal amplifier system

1976-11-05

1980-01-01

Brown, Thomas W.

179 1G, 179 1VL, 179107FD, H04M 119

Patent

active

041818180

ABSTRACT:
A personal amplifier system wherein sound attenuating ear defenders provided with earphones ideally exclude all airborne sound and permit only electronically reproduced sound to be heard. A pair of spaced microphones are coupled to the earphones through amplifying channels, the gains of which are synchronously varied preferably in response to the greater of the output signals of the two channels.

REFERENCES:
patent: 2290992 (1942-07-01), Peterson
patent: 3057960 (1962-09-01), Kaiser
patent: 3238304 (1966-03-01), Yaita
patent: 3361971 (1968-01-01), Eaves
patent: 3509289 (1970-04-01), Briskey
patent: 3725583 (1973-04-01), Gunderson et al.
patent: 3755625 (1973-08-01), Mastin
patent: 3893038 (1975-07-01), Omata et al.
patent: 3952158 (1976-04-01), Kyle et al.
patent: 3992584 (1976-11-01), Dugan
patent: 3995113 (1976-11-01), Tani
patent: 4006427 (1977-02-01), Nishikawa
patent: 4021612 (1977-05-01), Takahashi
J. O'Connell et al., "Stereophonic Signal Compression System", RCA TN No. 400, 1960.

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