Telephone mouthpiece for preventing wind noises and method for r

Details Telephone mouthpiece for preventing wind noises and method for r Telephone mouthpiece for preventing wind noises and method for r

1995-10-10

1997-12-23

Kuntz, Curtis

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

381168, 381169, 181242, 379433, H04R 2500

Patent

active

057013543

ABSTRACT:
The telephone mouthpiece of the present invention comprises a microphone unit 3, a unit housing section 1 and an acoustic duct section 2 tightly fitted to the unit housing section 1. The unit housing section 1 comprises a flat plate 11 and a cylindrical housing 12 housing the microphone unit 3 provided on the flat plate 11. The acoustic duct section 2 comprises: an acoustic duct box 21 in the form of a box in close contact with the corresponding flat plate 11; and a cylindrical box 22 in close contact with the cylindrical box 12 at an end of the acoustic duct box 21; partitions 23 and 24 for partitioning inside of the acoustic duct box 21 into a plurality of air chambers; and slits 29 and 30 provided on the partitions 23 and 24.

REFERENCES:
patent: 3553374 (1971-01-01), Wolf
patent: 3796842 (1974-03-01), Guille
patent: 4817168 (1989-03-01), Fidi
patent: 5144656 (1992-09-01), Oku
patent: 5239578 (1993-08-01), Regen et al.
patent: 5282245 (1994-01-01), Anderson
patent: 5288955 (1994-02-01), Staple et al.
patent: 5343523 (1994-08-01), Bartlett
patent: 5491747 (1996-02-01), Barltlett et al.
patent: 5606607 (1997-02-01), Yamaguchi et al.

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