JPS5627598A - Microphone - Google Patents

Microphone

Info

Publication number
JPS5627598A
JPS5627598A JP10180179A JP10180179A JPS5627598A JP S5627598 A JPS5627598 A JP S5627598A JP 10180179 A JP10180179 A JP 10180179A JP 10180179 A JP10180179 A JP 10180179A JP S5627598 A JPS5627598 A JP S5627598A
Authority
JP
Japan
Prior art keywords
unit
sound
units
noise
outputs
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
JP10180179A
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 JP10180179A priority Critical patent/JPS5627598A/en
Publication of JPS5627598A publication Critical patent/JPS5627598A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones

Landscapes

  • 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 prevent the sound pressure sensitivity of a sound receiving unit from lowering by making impedance for noise-reduction less than that for sound reception, by connecting sound-receiving and vibration-noise-reducing microphone units together so that their outputs will be out of phase each other. CONSTITUTION:Sound-receiving unit 7 and noise-reducing unit 8 are connected together in series so that their outputs will be out of phase mutually. When mechanical, external vibration is applied to enclosure 5, diaphragms 10 and 14 of units 7 and 8 are to move in the same direction according to the law of inertia. At the same time, electromotive force is generated by voice coils 11 and 15. For this purpose, units 8 and 7 are connected in series with their outputs out of phase with each other so as to cancel electromotive forces of units 7 and 8. To prevent the sound pressure sensitivity of unit 7 from deteriorating, the impedance of unit 8 is made less than that of unit 7.
JP10180179A 1979-08-11 1979-08-11 Microphone Pending JPS5627598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10180179A JPS5627598A (en) 1979-08-11 1979-08-11 Microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10180179A JPS5627598A (en) 1979-08-11 1979-08-11 Microphone

Publications (1)

Publication Number Publication Date
JPS5627598A true JPS5627598A (en) 1981-03-17

Family

ID=14310239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10180179A Pending JPS5627598A (en) 1979-08-11 1979-08-11 Microphone

Country Status (1)

Country Link
JP (1) JPS5627598A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5962295A (en) * 1982-09-30 1984-04-09 Matsushita Electric Ind Co Ltd Microphone
US6560345B1 (en) 2000-02-29 2003-05-06 Yasuhiro Hachisuka Microphone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5962295A (en) * 1982-09-30 1984-04-09 Matsushita Electric Ind Co Ltd Microphone
US6560345B1 (en) 2000-02-29 2003-05-06 Yasuhiro Hachisuka Microphone

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