Speaker system having directivity

Details Speaker system having directivity Speaker system having directivity

1989-12-21

1992-05-26

Dwyer, James L.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

381 90, 181159, 181180, H04R 2500, H04R 102, H04R 700, G10K 1100

Patent

active

051174634

ABSTRACT:
A speaker system comprises an acoustic panel. The acoustic panel is constructed of a plurality of thin plate-like sound absorbing panels provided close to the loudspeaker and arranged such that major surfaces thereof are disposed with a predetermined space therebetween so that the front space of the loudspeaker is opened for guiding a sound wave forwardly to radiate along the surface of the panels, while components of the sound wave having a radiation direction oblique to the major central axis of the sound absorbing panels are attenuated due to propagation through the sound absorbing panels. The sound absorbing panels are made of a porous sound absorbing material in which metal powders of Al, Ni, Cu, and others are sintered. In the case where one side of the acoustic panel is opened, it is preferable to provide a sound absorbing material at least at that opening and to further enclose the periphery of the sound absorbing material with a sound insulating material.

REFERENCES:
patent: 2193399 (1940-03-01), Fisher
patent: 2463762 (1949-03-01), Giannini
patent: 2921993 (1960-01-01), Beaverson
patent: 3105113 (1963-09-01), Olson
patent: 3506087 (1970-04-01), Ishikawa
patent: 3816672 (1974-06-01), Gefvert et al.
patent: 3867996 (1975-02-01), Lou
patent: 4109983 (1978-08-01), Kinoshita
patent: 4665549 (1987-05-01), Eriksson et al.
patent: 4690244 (1987-09-01), Dickie
patent: 4893695 (1990-01-01), Tamura et al.

Affiliated with

Also associated with

Rating

Speaker system having directivity 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 system having directivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speaker system having directivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-425731