JPH0459898U - - Google Patents
Info
- Publication number
- JPH0459898U JPH0459898U JP10314990U JP10314990U JPH0459898U JP H0459898 U JPH0459898 U JP H0459898U JP 10314990 U JP10314990 U JP 10314990U JP 10314990 U JP10314990 U JP 10314990U JP H0459898 U JPH0459898 U JP H0459898U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- controller
- transfer function
- interior
- microphone
- 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
Links
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
第１図は、本考案に係る電子式車内騒音低減装
置に用いるワイヤレス・マイクの実施例を示した
外観図、第２図は、本考案に係る電子式車内騒音
低減装置の一実施例を示したブロツク図、第３図
は、従来の電子式車内騒音低減装置の一例を示し
たブロツク図、第４図は、適応フイルタの一般的
な構成を示したブロツク図、である。
図において、１は車両、２はコントローラ、１
０は車室、１１はエンジン、１３０はワイヤレス
・マイク、１３１は受信機、１４はスピーカ、２
２は適応フイルタ、をそれぞれ示す。図中、同一
符号は同一又は相当部分を示す。
Fig. 1 is an external view showing an embodiment of the wireless microphone used in the electronic in-vehicle noise reduction device according to the present invention, and Fig. 2 shows an embodiment of the electronic in-vehicle noise reduction device according to the present invention. FIG. 3 is a block diagram showing an example of a conventional electronic in-vehicle noise reduction device, and FIG. 4 is a block diagram showing a general configuration of an adaptive filter. In the figure, 1 is a vehicle, 2 is a controller, 1
0 is the vehicle interior, 11 is the engine, 130 is the wireless microphone, 131 is the receiver, 14 is the speaker, 2
2 indicates an adaptive filter. In the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
段と、該基準信号から車体の振動系の耳元までの
伝達関数の逆伝達関数を同定する適応フイルタ型
コントローラと、該コントローラの出力信号を車
内に出力するスピーカと、所望の位置に取り付け
られて全車内騒音を検出するワイヤレス・マイク
手段とを備え、該コントローラが該マイクの入力
が最小になるように該スピーカを制御することを
特徴とした電子式車内騒音低減装置。 means for generating a signal based on engine vibration; an adaptive filter type controller that identifies the inverse transfer function of the transfer function from the reference signal to the ear of the vibration system of the vehicle; and outputting the output signal of the controller to the interior of the vehicle. and wireless microphone means mounted at a desired position to detect all vehicle interior noise, the controller controlling the speaker so that input to the microphone is minimized. In-car noise reduction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10314990U JPH0459898U (en) | 1990-09-28 | 1990-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10314990U JPH0459898U (en) | 1990-09-28 | 1990-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0459898U true JPH0459898U (en) | 1992-05-22 |
Family
ID=31847919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10314990U Pending JPH0459898U (en) | 1990-09-28 | 1990-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0459898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687335A (en) * | 1992-07-06 | 1994-03-29 | Mazda Motor Corp | Vibration reducing device for vehicle |
-
1990
- 1990-09-28 JP JP10314990U patent/JPH0459898U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687335A (en) * | 1992-07-06 | 1994-03-29 | Mazda Motor Corp | Vibration reducing device for vehicle |
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