Acoustics – Anatomic or prosthetic relation – Ear and mouth
Patent
1980-01-31
1982-05-18
Brown, Thomas W.
Acoustics
Anatomic or prosthetic relation
Ear and mouth
179 1AT, 181144, H04R 312, H04R 2700
Patent
active
043306918
ABSTRACT:
A loudspeaker is formed integrally with a rectangular ceiling tile which is provided with electrical contacts for connecting the loudspeaker in series or parallel combinations with other loudspeaker-tile assemblies and for supplying power to the loudspeaker from a bus, such as the T-bar which supports the ceiling tile in a typical suspended ceiling installation. A plurality of these loudspeaker-tile assemblies can be used as part of either the ceiling or wall of a large room into which sound is to be transmitted. The loudspeakers are completely concealed from view. Different electrical delay lines can be connected to various speakers in the array of speakers to produce desired acoustical effects.
REFERENCES:
patent: 3008013 (1961-11-01), Williamson et al.
patent: 3135838 (1964-06-01), Wright
patent: 4057689 (1977-11-01), Stallings, Jr.
Brown Thomas W.
The Futures Group, Inc.
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