Directional capacitor microphone

Details Directional capacitor microphone Directional capacitor microphone

2006-05-23

2006-05-23

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S174000, C381S369000

Reexamination Certificate

active

07050597

ABSTRACT:
It is a primary object of the present invention to suppress the variability of an acoustic resistance of sound passing from a rear acoustic terminal to the back surface of a vibration plate by sufficiently obtaining the contact area between an acoustic resistor and its storage portion even in a capacitor microphone having a small diameter.In order to achieve the object, as shown in FIG.3, a support140of a fixed electrode130is formed as an electrically conductive column including a large and a small diameter-columns with the both columns disposed concentrically. The difference between each of the inner diameters of the large and the small diameter-columns is increased as possible as it can so that the contact area between the acoustic resistor151housed in the large diameter-column141and the bottom141aof the large diameter-column can be increased. Therefore, the variability of the acoustic resistance can be suppressed.

REFERENCES:
patent: 5703957 (1997-12-01), McAteer
patent: 5878147 (1999-03-01), Killion et al.
patent: 6567526 (2003-05-01), Killion et al.
patent: 6757399 (2004-06-01), Cheng

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3609760