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
Application number
JP8599590U
Other languages
English (en)
Japanese (ja)
Other versions
JP2569259Y2 (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 JP1990085995U priority Critical patent/JP2569259Y2/ja
Publication of JPH0443281U publication Critical patent/JPH0443281U/ja
Application granted granted Critical
Publication of JP2569259Y2 publication Critical patent/JP2569259Y2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP1990085995U 1990-08-15 1990-08-15 防犯用超音波検知装置 Expired - Fee Related JP2569259Y2 (ja)

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 (en:Method) 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 (en:Method)

Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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

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Legal Events

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