Howling phenomena removing apparatus for video display appliance

Details Howling phenomena removing apparatus for video display appliance Howling phenomena removing apparatus for video display appliance

1996-05-16

1997-10-28

Dang, Khanh

Acoustics

Diaphragm

With damping means

181199, 181 207, H04R 700

Patent

active

056820216

ABSTRACT:
The present invention relates to an apparatus that removes howling phenomena in a video display appliance capable of absorbing and damping vibrations arising from the output of a loudspeaker to remove the howling phenomena produced by the transfer of the vibrations to a cathode-ray tube. The apparatus includes a vibration-absorbing section mounted on the loudspeaker for absorbing vibrations generated and propagated from the loudspeaker due to the output of the loudspeaker, and a vibration-damping section having a predetermined space for receiving the vibration-absorbing section therein. The vibration-damping section disperses and damps the remaining vibrations passing through the vibration-absorbing section in the space.

REFERENCES:
patent: 3086078 (1963-04-01), Sharma
patent: 3571509 (1971-03-01), Cross
patent: 4152544 (1979-05-01), Sanpei et al.
patent: 5036946 (1991-08-01), Yoshino
patent: 5162619 (1992-11-01), Thiele et al.
patent: 5400408 (1995-03-01), Lundgren et al.

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