(19)
(11) EP 0 429 264 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.03.1992 Bulletin 1992/10

(43) Date of publication A2:
29.05.1991 Bulletin 1991/22

(21) Application number: 90312516.9

(22) Date of filing: 16.11.1990
(51) International Patent Classification (IPC)5: H04R 3/00, H04R 1/08
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 20.11.1989 JP 301699/89

(71) Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Kadoma-shi, Osaka-fu, 571 (JP)

(72) Inventors:
  • Ono, Kiminori
    Katano-shi, Osaka-fu 576 (JP)
  • Matsumoto, Michio
    Sennan-shi, Osaka-fu 590-05 (JP)
  • Naono, Hiroyuki
    Yawata-shi, Kyoto-fu 614 (JP)
  • Kobayashi, Hiroshi
    Moriguchi-shi, Osaka-fu 570 (JP)
  • Yamashina, Yuuji
    Takatsuki-shi, Osaka-fu 569 (JP)

(74) Representative: Crawford, Andrew Birkby et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)


(56) References cited: : 
   
       


    (54) Microphone apparatus


    (57) A microphone apparatus using a non-directional microphone and a directional microphone equalizes the pressure and vibration responses of the directional microphone located near a sound source to respective counterparts of the non-directional microphone, and processes signals to cancel acoustic noise and vibration noise generated from the sound source near the microphones. This microphone apparatus, when built in an appliance having an acoustic noise and vibration source within it, reduces acoustic noise, vibration noise, and wind noise, to prevent reduction of the S/N ratio at the time of sound pick up, enabling best-quality sound recording.







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