Headphone

Details Headphone Headphone

1975-11-04

1977-05-31

Cooper, William C.

179182R, H04R 128

Patent

active

040271170

ABSTRACT:
A headphone supported at the ear position for reproducing sound comprises (a) an oscillating member for sound reproduction, (b) a frame to support the oscillating member, (c) at least one opening constituting a path from the space, defined by the inside of the oscillating member, an ear pad and the ear to the free space on the outside of the oscillating member, and (d) an acoustic resistance member disposed in the opening.

REFERENCES:
patent: 2249161 (1941-07-01), Mott
patent: 2540498 (1951-02-01), Tallman
patent: 3586794 (1971-06-01), Michaelis

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