JPS5625892A - Microphone - Google Patents

Microphone

Info

Publication number
JPS5625892A
JPS5625892A JP10072279A JP10072279A JPS5625892A JP S5625892 A JPS5625892 A JP S5625892A JP 10072279 A JP10072279 A JP 10072279A JP 10072279 A JP10072279 A JP 10072279A JP S5625892 A JPS5625892 A JP S5625892A
Authority
JP
Japan
Prior art keywords
oscillation
external
microphone
unit
opposite phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10072279A
Other languages
Japanese (ja)
Inventor
Hideo Suyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP10072279A priority Critical patent/JPS5625892A/en
Publication of JPS5625892A publication Critical patent/JPS5625892A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To reduce the noise level produced by external oscillation independently of the number of frequencies, by connecting the sound reception microphone unit and the oscillation noise reduction unit so that the outputs are in opposite phase each other. CONSTITUTION:In the case 5 of cylindrical shape constituting the microphone main body, the sound reception microphone unit 7 supported elastically with the oscillation-proof member 6 and the oscillation noise reduction microphone unit 8 to reduce the nois produced with external mechanical oscillation are contained up and down. The units 7 and 8 are connected in series and so that the outputs are in opposite phase each other, and when mechanical external oscillation is exerted to the microphone, the oscillation plates of the units 7 and 8 are going to move toward the same direction, thereby causing an electromotiveforce at each voice coil instantly, but they are cancelled due to opposite phase connection. Since the unit 8 is contained in a closed space, it is not subjected to the effect of external sound pressure.
JP10072279A 1979-08-09 1979-08-09 Microphone Pending JPS5625892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10072279A JPS5625892A (en) 1979-08-09 1979-08-09 Microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10072279A JPS5625892A (en) 1979-08-09 1979-08-09 Microphone

Publications (1)

Publication Number Publication Date
JPS5625892A true JPS5625892A (en) 1981-03-12

Family

ID=14281515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10072279A Pending JPS5625892A (en) 1979-08-09 1979-08-09 Microphone

Country Status (1)

Country Link
JP (1) JPS5625892A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775192A (en) * 1993-08-31 1995-03-17 Nec Corp Microphone
US8311236B2 (en) 2007-10-04 2012-11-13 Panasonic Corporation Noise extraction device using microphone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775192A (en) * 1993-08-31 1995-03-17 Nec Corp Microphone
US8311236B2 (en) 2007-10-04 2012-11-13 Panasonic Corporation Noise extraction device using microphone

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