Electrical audio signal processing systems and devices – Electro-acoustic audio transducer
Patent
1987-09-28
1989-01-17
Hix, L. T.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
181145, 181146, 181163, 181166, H04R 726
Patent
active
047992646
ABSTRACT:
A speaker system comprises a housing and at least one speaker mounted in said housing. An acoustical filter for intercepting and reradiating sound waves is mounted in front of the cone of the speaker. The acoustical filter includes a frame having a central aperture and at least one membrane mounted to the frame covering the aperture and having a resonant frequency of vibration. A plurality of slots are formed in the frame adjacent the aperture. A dispersion grid for increasing the spacial angular dispersion of sound waves generated by the speaker is mounted in front of the frame.
REFERENCES:
patent: 1882974 (1932-10-01), Schlenker
patent: 1990409 (1935-02-01), Lawrance
patent: 2110908 (1938-03-01), Hartmann
patent: 2256270 (1941-09-01), Swift
patent: 2761912 (1956-09-01), Touger et al.
patent: 2979150 (1961-04-01), Irby, Jr.
patent: 3909531 (1975-09-01), Plummer
patent: 4029171 (1977-06-01), Manger
patent: 4119799 (1978-10-01), Merlino
patent: 4275278 (1981-06-01), Sakursi et al.
patent: 4319098 (1982-03-01), Baitcher
patent: 4387787 (1983-06-01), King
patent: 4511768 (1985-04-01), Patel
Brown Brian W.
Hix L. T,.
Norris Jerome J.
LandOfFree
Speaker system 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speaker system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2416620