Electret capacitor microphone

Details Electret capacitor microphone Electret capacitor microphone

2007-11-06

2007-11-06

Ni, Suhan (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Microphone capsule only

C381S174000, C181S158000

Reexamination Certificate

active

10503653

ABSTRACT:
The present invention is an electret condenser microphone that includes an electro-acoustic transducer (M) having an electret portion (E) including a diaphragm (6) acting as an electrode and a stationary electrode (2, 25) disposed in opposition to the diaphragm (6), and a FET (10) effecting an impedance conversion on an output from the electro-acoustic transducer (M) and then outputting the converted output on a signal line (L). A capacitor (11) and a varistor (12) are provided in parallel between the signal line (L) and a ground (18) and a resistor (13) is incorporated in series in the signal line (L).

REFERENCES:
patent: 3946422 (1976-03-01), Yagi et al.
patent: 4466120 (1984-08-01), Walker et al.
patent: 6914992 (2005-07-01), van Halteren et al.
patent: 02-35319 (1990-02-01), None
patent: 07-240424 (1995-09-01), None
patent: 10-098796 (1998-04-01), None
patent: 2001-078297 (2001-03-01), None
patent: 2001-102875 (2001-04-01), None
patent: 2001-231098 (2001-08-01), None
patent: 2003-526299 (2003-09-01), None

Affiliated with

Also associated with

Rating

Electret capacitor microphone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electret capacitor microphone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electret capacitor microphone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3822194