JPH0476568U - - Google Patents
Info
- Publication number
- JPH0476568U JPH0476568U JP12105490U JP12105490U JPH0476568U JP H0476568 U JPH0476568 U JP H0476568U JP 12105490 U JP12105490 U JP 12105490U JP 12105490 U JP12105490 U JP 12105490U JP H0476568 U JPH0476568 U JP H0476568U
- Authority
- JP
- Japan
- Prior art keywords
- reference level
- level
- initial setting
- setting switch
- theft device
- 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
Links
- 239000005357 flat glass Substances 0.000 claims 1
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Description
第１図は、この考案による車載用盗難防止装置
の構成図、第２図は第１図の実施例における基準
レベル設定の処理手順を示すフローチヤート、第
３図は、第１図の実施例における基準レベル設定
処理を説明するためのタイミングチヤート、第４
図は従来の車載盗難防止装置の構成図である。
１１……マイクロフオン、１２……増幅器、１
３……フイルタ、１４……整流器、１５……ＣＰ
Ｕ、１６……初期設定スイツチ。
FIG. 1 is a block diagram of the vehicle-mounted anti-theft device according to the invention, FIG. 2 is a flowchart showing the procedure for setting a reference level in the embodiment of FIG. 1, and FIG. 3 is an embodiment of the embodiment of FIG. 1. 4th timing chart for explaining the reference level setting process in
The figure is a configuration diagram of a conventional vehicle-mounted theft prevention device. 11...Microphone, 12...Amplifier, 1
3... Filter, 14... Rectifier, 15... CP
U, 16...Initial setting switch.
Claims (1)
検出した音信号レベルが所定の基準レベル以上で
あるとき窓ガラスが破壊されたと判断して警報を
発生する車載用盗難防止装置において、 初期設定スイツチと、 前記初期設定スイツチＯＮ動作時、前記マイク
ロフオンから入力する入力信号レベルのうち最大
レベルを保持し、前記初期設定スイツチＯＦＦ時
に前記保持された最大レベルを前記基準レベルに
設定する基準レベル設定手段と、 を備えて成ることを特徴とする車載用盗難防止装
置。[Scope of claim for utility model registration] Automotive anti-theft device that determines that the window glass has been broken and issues an alarm when the sound signal level detected by a microphone installed at a predetermined position inside the car is higher than a predetermined reference level. In the apparatus, an initial setting switch; when the initial setting switch is ON, a maximum level of the input signal input from the microphone is held; when the initial setting switch is OFF, the held maximum level is set to the reference level. A vehicle-mounted anti-theft device comprising: a reference level setting means for setting a reference level;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12105490U JP2530047Y2 (en) | 1990-11-19 | 1990-11-19 | In-vehicle anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12105490U JP2530047Y2 (en) | 1990-11-19 | 1990-11-19 | In-vehicle anti-theft device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0476568U true JPH0476568U (en) | 1992-07-03 |
| JP2530047Y2 JP2530047Y2 (en) | 1997-03-26 |
Family
ID=31868932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12105490U Expired - Fee Related JP2530047Y2 (en) | 1990-11-19 | 1990-11-19 | In-vehicle anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530047Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007245988A (en) * | 2006-03-17 | 2007-09-27 | Fujitsu Ten Ltd | Vehicular security device |
| JP2010023745A (en) * | 2008-07-23 | 2010-02-04 | Denso Corp | Vehicular security system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450059A (en) * | 1990-06-20 | 1992-02-19 | Mazda Motor Corp | Burglar preventing device for vehicle |
-
1990
- 1990-11-19 JP JP12105490U patent/JP2530047Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450059A (en) * | 1990-06-20 | 1992-02-19 | Mazda Motor Corp | Burglar preventing device for vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007245988A (en) * | 2006-03-17 | 2007-09-27 | Fujitsu Ten Ltd | Vehicular security device |
| JP2010023745A (en) * | 2008-07-23 | 2010-02-04 | Denso Corp | Vehicular security system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2530047Y2 (en) | 1997-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |