KR910011082A - microphone - Google Patents

microphone Download PDF

Info

Publication number
KR910011082A
KR910011082A KR1019900018825A KR900018825A KR910011082A KR 910011082 A KR910011082 A KR 910011082A KR 1019900018825 A KR1019900018825 A KR 1019900018825A KR 900018825 A KR900018825 A KR 900018825A KR 910011082 A KR910011082 A KR 910011082A
Authority
KR
South Korea
Prior art keywords
microphone
omnidirectional
directional
output signal
noise
Prior art date
Application number
KR1019900018825A
Other languages
Korean (ko)
Inventor
키미노리 오노
미찌오 마쯔모또
히로유끼 나오노
히로시 고바야시
유지 야마시나
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR910011082A publication Critical patent/KR910011082A/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/01—Noise reduction using microphones having different directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/07—Mechanical or electrical reduction of wind noise generated by wind passing a microphone

Landscapes

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

Abstract

내용 없음No content

Description

마이크로폰microphone

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 제1실시예에 있어서 마이크폰장치의 블록도.1 is a block diagram of a microphone device according to a first embodiment of the present invention.

제2(a)도는 음원으로부터 1m거리에 있는 제1도의 무지향성 마이크론폰의 압력응답도.FIG. 2 (a) is the pressure response of the omnidirectional micron phone of FIG. 1 at a distance of 1 m from the sound source.

제2(b)도는 음원으로부터 2cm거리에 있는 제1도의 무지향성 마이크로폰의 압력 응답도.FIG. 2 (b) is the pressure response of the omnidirectional microphone of FIG. 1 at a distance of 2 cm from the sound source.

제3(a)도는 마이크로폰이 음원으로부터 1m 떨어져 있는 경우 제1도에 있어서 이퀼라이저 출력의 압력 응답도.3 (a) is the pressure response of the equalizer output in FIG. 1 when the microphone is 1m away from the sound source.

제3(b)도는 마이크로폰이 음원으로부터 2cm 떨어져 있는 경우 제1도에 있어서 이퀼라이저 출력의 압력 응답도.FIG. 3 (b) is the pressure response of the equalizer output in FIG. 1 when the microphone is 2 cm away from the sound source.

Claims (2)

잡음원에 근접하여 위치된 무지향성 마이크로폰과, 주축이 상기 무지향성 마이크로폰의 주축과 평행하도록 상기 무지향성 마이크로폰에 인접하여 위치된 지향성 마이크로폰과, 상기 두 마이크로폰에 같은 진동을 전송하도록 상기 무지향성 마이크로폰 및 지향성 마이크로폰을 고정하기 위한 마이크로폰홀올더와 잡음원의 소정방향에서 음원에 근접하여 위치된다면, 상기 지향성 마이크로폰의 압력응답을 상기 무지향성 마이크로폰의 압력응답과 등가화시키기 위해서 상기 지향성 마이크로폰의 출력신호를 필터링하기 위한 이퀼라이저와, 음향 잡음 및 진동잡음을 저감하기 위하여 상기 무지향성 마이크로폰의 출력신호 및 상기 이퀼라이저의 출력신호를 처리하기 위한 동작유닛으로 구성된 것을 특징으로 하는 마이크로폰장치.An omnidirectional microphone positioned in proximity to the noise source, a directional microphone positioned adjacent to the omnidirectional microphone such that its main axis is parallel to the main axis of the omnidirectional microphone, and the omnidirectional microphone and the directional microphone to transmit the same vibration to the two microphones. A microphone holder for securing the microphone and a filter holder for filtering the output signal of the directional microphone so as to equalize the pressure response of the directional microphone with the pressure response of the omnidirectional microphone, if located close to the sound source in a predetermined direction of the noise source. And an equalizer and an operation unit for processing an output signal of the omnidirectional microphone and an output signal of the equalizer to reduce acoustic noise and vibration noise. 제1항에 있어서, 상기 지향성 마이크로폰의 진동판의 표면밀도는, 음원에 근접하여 위치된 경우 상기 마이크로폰의 뒤쪽 방향에서의 압력응답이 상기 마이크로폰의 진동 응답과 대략 같도록 설비되는 것을 특징으로 하는 마이크로폰장치.2. The microphone apparatus according to claim 1, wherein the surface density of the diaphragm of the directional microphone is provided such that the pressure response in the rearward direction of the microphone is approximately equal to the vibration response of the microphone when located near the sound source. . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900018825A 1989-11-20 1990-11-20 microphone KR910011082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1301699A JPH03162100A (en) 1989-11-20 1989-11-20 Microphone equipment and video integration camera mounted with the microphone equipment
JP1-301699 1989-11-20

Publications (1)

Publication Number Publication Date
KR910011082A true KR910011082A (en) 1991-06-29

Family

ID=17900089

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900018825A KR910011082A (en) 1989-11-20 1990-11-20 microphone

Country Status (3)

Country Link
EP (1) EP0429264A3 (en)
JP (1) JPH03162100A (en)
KR (1) KR910011082A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29902393U1 (en) * 1999-02-10 2000-07-20 Peiker Andreas Device for detecting sound waves in a vehicle
JP2003249003A (en) 2002-02-25 2003-09-05 Canon Inc Recorder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412097A (en) * 1980-01-28 1983-10-25 Victor Company Of Japan, Ltd. Variable-directivity microphone device
JPS5852780Y2 (en) * 1980-07-19 1983-12-01 パイオニア株式会社 microphone
GB2113952B (en) * 1982-01-27 1985-07-24 Racal Acoustics Ltd Improvements in and relating to communications systems

Also Published As

Publication number Publication date
EP0429264A3 (en) 1992-03-04
EP0429264A2 (en) 1991-05-29
JPH03162100A (en) 1991-07-12

Similar Documents

Publication Publication Date Title
KR910011083A (en) Microphone
DE69028423D1 (en) Electro-acoustic system
US3665122A (en) Hearing aid construction utilizing a vented transducer compartment for reducing feedback
KR970707665A (en) NOISE CANCELLATION APPARATUS
KR860007841A (en) An electroacoustic device
KR920005665A (en) Electroacoustic Transducer and Sound Regeneration System
CA1200308A (en) Directional microphone assembly
PL325245A1 (en) Musical instrument with built-in loudspeakers
DE3650087D1 (en) LOUDSPEAKERS SUITABLE FOR USE IN A CORNER.
FI980649A0 (en) Foerfarande och anordning Foer att behandla riktad ljud i en acoustik virtualmiljoe
AU2001235692A1 (en) Method and device for comparing signals to control transducers and transducer control system
JPH06505132A (en) noise canceling handset
KR910011082A (en) microphone
CA2281117A1 (en) Mfb speaker system with controllable speaker vibration characteristic
ATE353523T1 (en) DEVICE FOR USE ON OR REMOVED FROM THE EAR
CA2229424A1 (en) Circuit to improve transducer separation in handsfree telephone
KR970702680A (en) Microphone Device
ATE226781T1 (en) LOW TONE MEMBRANE SPEAKER
JPS6161597B2 (en)
ATE230916T1 (en) MICROPHONE
NO953888L (en) Unidirectional multi-aperture microphone
FR2338616A1 (en) High fidelity loudspeaker system - has coaxial loudspeakers acoustically in-phase and in common enclosure
KR920003799A (en) Speaker system for active noise control
JPS6087598A (en) Speaker device
KR830002886B1 (en) Body phone

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application