Speaker with acoustic damped port

Details Speaker with acoustic damped port Speaker with acoustic damped port

2011-03-01

2011-03-01

Le, Huyen D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S345000, C381S348000

Reexamination Certificate

active

07899201

ABSTRACT:
Systems, methods, and devices for improving speaker performance with an acoustic damped port are disclosed. In accordance with various embodiments of the present invention, a damping material is placed around a vented frame of a speaker driver, and substantially covers or fills the vents of the frame. In some embodiments, the damping material results in improved impedance matching with acoustic delay, without required dimensional tuning (as with conventional ports). In some embodiments, it also reduces the air velocity gradients minimizing higher order frequency distortion components. In some embodiments, the damping material also acts as an absorber of energy by coupling to the sound wave. In some embodiments, low-frequency performance is improved in a small-scale design.

REFERENCES:
patent: 3443660 (1969-05-01), Olson et al.
patent: 4256198 (1981-03-01), Kawakami et al.
patent: 4550429 (1985-10-01), Burbank et al.
patent: 5440645 (1995-08-01), Freadman
patent: 2007/0280498 (2007-12-01), Rodman et al.

Affiliated with

Also associated with

Rating

Speaker with acoustic damped port does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2655697