JPH0393251U - - Google Patents

Info

Publication number
JPH0393251U
JPH0393251U JP1990001902U JP190290U JPH0393251U JP H0393251 U JPH0393251 U JP H0393251U JP 1990001902 U JP1990001902 U JP 1990001902U JP 190290 U JP190290 U JP 190290U JP H0393251 U JPH0393251 U JP H0393251U
Authority
JP
Japan
Prior art keywords
noise
white noise
speaker
vehicle
generator
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
JP1990001902U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1990001902U priority Critical patent/JPH0393251U/ja
Priority to KR1019910000231A priority patent/KR910014266A/en
Publication of JPH0393251U publication Critical patent/JPH0393251U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第一実施例を示す車両のノイ
ズ消去装置のブロツク図、第２図は本考案の第二
実施例を示す車両のノイズ消去装置のブロツク図
、第３図は本考案の第三実施例を示す車両のノイ
ズ消去装置のブロツク図、第４図はスピーカの配
設位置を示す車両の概略平面図、第５図はホワイ
トノイズを周波数の広い帯域で出力したときのノ
イズ消去効果を示す線図、第６図はホワイトノイ
ズをノイズ近傍の周波数帯域でのみ出力したとき
のノイズ消去効果を示す線図、第７図は暗騒音レ
ベル中に発生するノイズを説明するための線図で
ある。 １……パルスジエネレータ、３……制御回路、
４……ホワイトノイズ発生器、５……増幅器、６
……スピーカ、７……マイクロフオン、８……プ
リアンプ、９……バイパスフイルタ、１０……周
波数帯域フイルタ、Ｃ……暗騒音レベル、Ａ，Ｂ
……ノイズ。 FIG. 1 is a block diagram of a vehicle noise canceling device showing a first embodiment of the present invention, FIG. 2 is a block diagram of a vehicle noise canceling device showing a second embodiment of the present invention, and FIG. 3 is a block diagram of a vehicle noise canceling device showing a second embodiment of the present invention. Fig. 4 is a schematic plan view of the vehicle showing the arrangement position of the speakers, and Fig. 5 shows the noise when white noise is output in a wide frequency band. Figure 6 is a diagram showing the noise elimination effect when white noise is output only in the frequency band near the noise. Figure 7 is a diagram showing the noise generated in the background noise level. It is a line diagram. 1... Pulse generator, 3... Control circuit,
4...White noise generator, 5...Amplifier, 6
... Speaker, 7 ... Microphone, 8 ... Preamplifier, 9 ... Bypass filter, 10 ... Frequency band filter, C ... Background noise level, A, B
……noise.

Claims (1)

【実用新案登録請求の範囲】 暗騒音レベルより突出して発生している、歯車
の噛合い音の如き固有の周波数を持つノイズを算
出するノイズ検知手段と、 可聴域の周波数からなるホワイトノイズを発す
るホワイトノイズ発生器と、 このホワイトノイズ発生器の発するホワイトノ
イズを車室内に向けて出力するスピーカと、 少なくとも上記ノイズが発生する周波数帯域に
おいて、上記ノイズの音量より僅かに小さい音量
のホワイトノイズを上記スピーカから出力するよ
うに制御する制御回路とを具備する車両のノイズ
消去装置。[Scope of claim for utility model registration] Noise detection means that calculates noise with a unique frequency, such as the sound of meshing gears, that is generated above the background noise level, and that emits white noise consisting of frequencies in the audible range. a white noise generator; a speaker that outputs white noise emitted by the white noise generator into the vehicle interior; A noise canceling device for a vehicle, comprising a control circuit that controls output from a speaker.
JP1990001902U 1990-01-12 1990-01-12 Pending JPH0393251U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1990001902U JPH0393251U (en) 1990-01-12 1990-01-12
KR1019910000231A KR910014266A (en) 1990-01-12 1991-01-10 Vehicle noise canceller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990001902U JPH0393251U (en) 1990-01-12 1990-01-12

Publications (1)

Publication Number Publication Date
JPH0393251U true JPH0393251U (en) 1991-09-24

Family

ID=31505789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990001902U Pending JPH0393251U (en) 1990-01-12 1990-01-12

Country Status (2)

Country Link
JP (1) JPH0393251U (en)
KR (1) KR910014266A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006526921A (en) * 2003-06-02 2006-11-24 フェオニック ピーエルシー Audio system
JP2009293881A (en) * 2008-06-06 2009-12-17 Corona Corp Negative ion and nano-sized mist generating device
JP2010523207A (en) * 2007-04-02 2010-07-15 バクスター・インターナショナル・インコーポレイテッド User selectable masking sounds for medical devices
KR101452239B1 (en) * 2013-02-08 2014-10-23 주식회사 제이엠 Anion generator
US10290295B2 (en) 2016-12-09 2019-05-14 Panasonic Intellectual Property Management Co., Ltd. Sound masking device, vehicle, and sound masking method
CN110040086A (en) * 2018-01-17 2019-07-23 哈曼国际工业有限公司 System and method for vehicle noise masking

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030050260A (en) * 2001-12-18 2003-06-25 현대자동차주식회사 Whine noise control device and the method for the interior of a room in vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006526921A (en) * 2003-06-02 2006-11-24 フェオニック ピーエルシー Audio system
JP2010523207A (en) * 2007-04-02 2010-07-15 バクスター・インターナショナル・インコーポレイテッド User selectable masking sounds for medical devices
JP2009293881A (en) * 2008-06-06 2009-12-17 Corona Corp Negative ion and nano-sized mist generating device
KR101452239B1 (en) * 2013-02-08 2014-10-23 주식회사 제이엠 Anion generator
US10290295B2 (en) 2016-12-09 2019-05-14 Panasonic Intellectual Property Management Co., Ltd. Sound masking device, vehicle, and sound masking method
DE102017129097B4 (en) 2016-12-09 2023-03-09 Panasonic Intellectual Property Management Co., Ltd. Sound masking device, vehicle and sound masking method
CN110040086A (en) * 2018-01-17 2019-07-23 哈曼国际工业有限公司 System and method for vehicle noise masking
JP2019124931A (en) * 2018-01-17 2019-07-25 ハーマン インターナショナル インダストリーズ インコーポレイテッド System and method for vehicle noise masking
CN110040086B (en) * 2018-01-17 2024-06-11 哈曼国际工业有限公司 System and method for vehicle noise masking

Also Published As

Publication number Publication date
KR910014266A (en) 1991-08-31

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