Active plus selective headset

Details Active plus selective headset Active plus selective headset

1997-07-23

1998-09-29

Harvey, Minsun Oh

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Adjacent ear

381 72, A61F 1106, H03B 2900

Patent

active

058155821

ABSTRACT:
An active plus selective headset system for provision of active attenuation of broadband noise as well as speech filtering comprising a headset with reference microphones, residual microphones and speakers on each of a pair of open backed muffs and a controller means.

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patent: 5105377 (1992-04-01), Ziegler, Jr.
patent: 5182774 (1993-01-01), Bourk

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