Microphone

Details Microphone Microphone

2006-07-18

2006-07-18

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S356000, C381S357000, C381S360000

Reexamination Certificate

active

07079663

ABSTRACT:
A microphone comprising a diaphragm which has a front diaphragm surface on which sound waves impinge and a rear diaphragm surface which is at least partially acoustically separated from the front diaphragm surface, and a sound inlet, through which sound waves can go to the rear diaphragm surface. In order to improve a strongly frequency-dependent frequency response characteristic in respect of the directional effect of the microphone, the microphone includes at least one damping element and the slot-shaped sound inlet forms substantially an acoustic inductance so that at least a part of the sound waves to be picked up is passed with a delay to the rear diaphragm surface.

REFERENCES:
patent: 3513270 (1970-05-01), Warning
patent: 3585317 (1971-06-01), Dvorsky
patent: 4410770 (1983-10-01), Hagey
patent: 5148492 (1992-09-01), Uzawa et al.
patent: 5781644 (1998-07-01), Chang
patent: 37 08 747 (1987-09-01), None

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