JPS5945136U - Vehicle noise control device - Google Patents

Vehicle noise control device

Info

Publication number
JPS5945136U
JPS5945136U JP14057682U JP14057682U JPS5945136U JP S5945136 U JPS5945136 U JP S5945136U JP 14057682 U JP14057682 U JP 14057682U JP 14057682 U JP14057682 U JP 14057682U JP S5945136 U JPS5945136 U JP S5945136U
Authority
JP
Japan
Prior art keywords
noise
vehicle
control device
vehicle noise
noise control
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.)
Granted
Application number
JP14057682U
Other languages
Japanese (ja)
Other versions
JPH0314720Y2 (en
Inventor
成瀬　清
内山田　竹志
Original Assignee
トヨタ自動車株式会社
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 トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP14057682U priority Critical patent/JPS5945136U/en
Publication of JPS5945136U publication Critical patent/JPS5945136U/en
Application granted granted Critical
Publication of JPH0314720Y2 publication Critical patent/JPH0314720Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案で対象とする高周波ピーク騒音特性図、
第２図は本考案に係る騒音対策装置の車両への好適な配
置図、第３図は本考案に係る騒音対策装置の電気的なブ
ロック回路図、第４．５゜６、　７．　８図は本考案の
作用を示す特性図である。 １０・・・マイクロホン、１２・・・バックグラウンド
騒音信号発生回路、１４・・・スピーカ、１６・・・ホ
ワイトノイズ発生器、２０・・・演算回路。Figure 1 is a high-frequency peak noise characteristic diagram targeted by this invention.
Fig. 2 is a preferred arrangement diagram of the noise control device according to the present invention in a vehicle, and Fig. 3 is an electrical block circuit diagram of the noise control device according to the present invention. FIG. 8 is a characteristic diagram showing the action of the present invention. DESCRIPTION OF SYMBOLS 10... Microphone, 12... Background noise signal generation circuit, 14... Speaker, 16... White noise generator, 20... Arithmetic circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 特定の高周波帯域における車内騒音を電気的に検出する
マイクロホンと、前記特定の高周波帯域を含む周波数領
域にてホワイトノイズを発生するホワイトノイズ発生器
と、前記ホワイトノイズから前記車内騒音を差演算する
演算回路と、前記演算回路の出力に応じたバックグラウ
ンド騒音を車室内に発生するスピーカと、を含み、車内
騒音を所定レベル内のバックグラウンド騒音内に埋没さ
せることにより騒音の識別感度を低下させることを特徴
とする車両用騒音対策装置。a microphone that electrically detects in-vehicle noise in a specific high-frequency band; a white noise generator that generates white noise in a frequency range that includes the specific high-frequency band; and a calculation that calculates the difference between the in-vehicle noise and the white noise. a circuit, and a speaker that generates background noise in the vehicle interior according to the output of the arithmetic circuit, and reduces the noise identification sensitivity by burying the vehicle interior noise within the background noise within a predetermined level. A vehicle noise countermeasure device featuring:
JP14057682U 1982-09-17 1982-09-17 Vehicle noise control device Granted JPS5945136U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14057682U JPS5945136U (en) 1982-09-17 1982-09-17 Vehicle noise control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14057682U JPS5945136U (en) 1982-09-17 1982-09-17 Vehicle noise control device

Publications (2)

Publication Number Publication Date
JPS5945136U true JPS5945136U (en) 1984-03-26
JPH0314720Y2 JPH0314720Y2 (en) 1991-04-02

Family

ID=30314685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14057682U Granted JPS5945136U (en) 1982-09-17 1982-09-17 Vehicle noise control device

Country Status (1)

Country Link
JP (1) JPS5945136U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60244781A (en) * 1984-05-18 1985-12-04 三菱電機株式会社 Acoustic device for elevator cage chamber
JPH09175281A (en) * 1995-12-28 1997-07-08 Fujitsu Ten Ltd Auto-volume device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827922A (en) * 1971-08-17 1973-04-13
JPS5146401A (en) * 1974-10-18 1976-04-20 Matsushita Electric Ind Co Ltd Denkiidohonpuno kuntenboshisochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4827922A (en) * 1971-08-17 1973-04-13
JPS5146401A (en) * 1974-10-18 1976-04-20 Matsushita Electric Ind Co Ltd Denkiidohonpuno kuntenboshisochi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60244781A (en) * 1984-05-18 1985-12-04 三菱電機株式会社 Acoustic device for elevator cage chamber
JPH09175281A (en) * 1995-12-28 1997-07-08 Fujitsu Ten Ltd Auto-volume device

Also Published As

Publication number Publication date
JPH0314720Y2 (en) 1991-04-02

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