Microphone with adjustable properties

Details Microphone with adjustable properties Microphone with adjustable properties

2004-05-06

2009-08-04

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Microphone capsule only

C381S170000

Reexamination Certificate

active

07570772

ABSTRACT:
The invention concerns a microphone with a membrane. The membrane has a first side which is in fluid contact with the surroundings and a second side which is facing a back chamber, where a barometric relief opening or vent opening is provided between the back chamber and the surroundings. According to the invention control means are provided for controlling the barometric relief opening.

REFERENCES:
patent: 3940575 (1976-02-01), Bauer
patent: 4142072 (1979-02-01), Berland
patent: 6075867 (2000-06-01), Bay et al.
patent: 6160896 (2000-12-01), Macaluso et al.
patent: 6549635 (2003-04-01), Gebert
patent: 2002/0067663 (2002-06-01), Loeppert et al.
patent: 0 982 971 (2000-03-01), None

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