Title:
【発明の名称】風雑音減衰効果を有するマイクロンホンユニツト
Document Type and Number:
Japanese Patent JPS6017191
Kind Code:
B2
Abstract:
A telephone transmitter in which a cavity is formed in front of a vibrating membrane of the microphone transmitter to thereby reduce wind-noise. The cross-sectional area and volume of the cavity are larger respectively than the cumulative total cross-sectional area and volume of the apertures formed in the mouthpiece of the telephone transmitter. At least one of the apertures may be formed to serve a shielding function to prevent an air stream from directly blowing onto the vibrating membrane, thereby further reducing wind-noise pickup by the transmitter.
Inventors:
HISATSUNE YOSHINOBU
SUZUKI MASAHARU
SUZUKI MASAHARU
Application Number:
JP16046077A
Publication Date:
May 01, 1985
Filing Date:
December 30, 1977
Export Citation:
Assignee:
AIPPON KK
International Classes:
H04M1/19; H04R1/08; H04R1/22; H04R19/00; H04R19/01; (IPC1-7): H04M1/19; H04R1/08; H04R19/01
Attorney, Agent or Firm:
Moriya Kazuo
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