Electrical audio signal processing systems and devices – Hearing protectors – electrical
Patent
1996-03-11
2000-07-18
Chang, Vivian
Electrical audio signal processing systems and devices
Hearing protectors, electrical
A61F 1106
Patent
active
06091825&
ABSTRACT:
A sound baffling device comprising an enclosure containing a homogeneous means for attenuating sound, the shape and composition of said enclosure crafted to vary the sound baffling characteristics of said enclosure, and another embodiment showing how a workable material comprised of a plurality of enclosures containing a homogeneous means for attenuating sound may be used to baffle sound. A method for constructing the workable material is given and various applications to sound baffling requirements involving previous as well as new uses are set out, including a description of how dynamic sound baffling may be implemented.
More specifically, the invention shows improvements to the sound baffling cups of ear protectors and the application of sound baffling cups to head phone sets, including some of the new art required to render these applications more effective. Several fitting means are described and improvements to the connecting means of head phone sets are discussed. The combination of previously known sound baffling cups with head phone sets is also set out.
REFERENCES:
patent: 4658931 (1987-04-01), Curry
patent: 4809811 (1989-03-01), Gorkike
patent: 4989271 (1991-02-01), Sapiejewski et al.
patent: 5148887 (1992-09-01), Murphy
patent: 5182774 (1993-01-01), Bourk
patent: 5208868 (1993-05-01), Sapiejewski
patent: 5241971 (1993-09-01), Lundin
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