JPH0443281U - - Google Patents
Info
- Publication number
- JPH0443281U JPH0443281U JP8599590U JP8599590U JPH0443281U JP H0443281 U JPH0443281 U JP H0443281U JP 8599590 U JP8599590 U JP 8599590U JP 8599590 U JP8599590 U JP 8599590U JP H0443281 U JPH0443281 U JP H0443281U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signal wave
- receiver
- sound source
- external sound
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Burglar Alarm Systems (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990085995U JP2569259Y2 (ja) | 1990-08-15 | 1990-08-15 | 防犯用超音波検知装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990085995U JP2569259Y2 (ja) | 1990-08-15 | 1990-08-15 | 防犯用超音波検知装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0443281U true JPH0443281U (US20030199744A1-20031023-C00003.png) | 1992-04-13 |
JP2569259Y2 JP2569259Y2 (ja) | 1998-04-22 |
Family
ID=31635402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990085995U Expired - Fee Related JP2569259Y2 (ja) | 1990-08-15 | 1990-08-15 | 防犯用超音波検知装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2569259Y2 (US20030199744A1-20031023-C00003.png) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS579009A (en) * | 1980-06-18 | 1982-01-18 | Furukawa Electric Co Ltd | Method of producing crosslinked polyolefin insulated power cable |
JPS5919396A (ja) * | 1982-07-26 | 1984-01-31 | 富士通株式会社 | 通信機収容架構造 |
JPS6123298A (ja) * | 1984-07-11 | 1986-01-31 | セコム株式会社 | 電子警報装置 |
JPS62293400A (ja) * | 1986-06-12 | 1987-12-19 | 綜合警備保障株式会社 | 赤外線式侵入者検知器 |
JPH02171997A (ja) * | 1988-12-26 | 1990-07-03 | Seiichi Miyazaki | センサ故障検出装置 |
-
1990
- 1990-08-15 JP JP1990085995U patent/JP2569259Y2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS579009A (en) * | 1980-06-18 | 1982-01-18 | Furukawa Electric Co Ltd | Method of producing crosslinked polyolefin insulated power cable |
JPS5919396A (ja) * | 1982-07-26 | 1984-01-31 | 富士通株式会社 | 通信機収容架構造 |
JPS6123298A (ja) * | 1984-07-11 | 1986-01-31 | セコム株式会社 | 電子警報装置 |
JPS62293400A (ja) * | 1986-06-12 | 1987-12-19 | 綜合警備保障株式会社 | 赤外線式侵入者検知器 |
JPH02171997A (ja) * | 1988-12-26 | 1990-07-03 | Seiichi Miyazaki | センサ故障検出装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2569259Y2 (ja) | 1998-04-22 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |