JPS55112692A - Error prevention system in ultrasonic wave alarm - Google Patents

Error prevention system in ultrasonic wave alarm

Info

Publication number
JPS55112692A
JPS55112692A JP1845479A JP1845479A JPS55112692A JP S55112692 A JPS55112692 A JP S55112692A JP 1845479 A JP1845479 A JP 1845479A JP 1845479 A JP1845479 A JP 1845479A JP S55112692 A JPS55112692 A JP S55112692A
Authority
JP
Japan
Prior art keywords
ultrasonic wave
prevention system
error prevention
wave alarm
alarm
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
JP1845479A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6342236B2 (enrdf_load_stackoverflow
Inventor
Shirou Shirai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON KEIBI HOSHO KK
Original Assignee
NIPPON KEIBI HOSHO KK
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 NIPPON KEIBI HOSHO KK filed Critical NIPPON KEIBI HOSHO KK
Priority to JP1845479A priority Critical patent/JPS55112692A/ja
Publication of JPS55112692A publication Critical patent/JPS55112692A/ja
Publication of JPS6342236B2 publication Critical patent/JPS6342236B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP1845479A 1979-02-21 1979-02-21 Error prevention system in ultrasonic wave alarm Granted JPS55112692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1845479A JPS55112692A (en) 1979-02-21 1979-02-21 Error prevention system in ultrasonic wave alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1845479A JPS55112692A (en) 1979-02-21 1979-02-21 Error prevention system in ultrasonic wave alarm

Publications (2)

Publication Number Publication Date
JPS55112692A true JPS55112692A (en) 1980-08-30
JPS6342236B2 JPS6342236B2 (enrdf_load_stackoverflow) 1988-08-22

Family

ID=11972069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1845479A Granted JPS55112692A (en) 1979-02-21 1979-02-21 Error prevention system in ultrasonic wave alarm

Country Status (1)

Country Link
JP (1) JPS55112692A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020936A1 (en) * 1993-03-11 1994-09-15 Arakawa & Co., Ltd. Instrument for exhibition with burglar alarm device, and method and apparatus for controlling burglar alarm for exhibit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4984269A (enrdf_load_stackoverflow) * 1972-12-15 1974-08-13
JPS53114397A (en) * 1977-03-14 1978-10-05 Tokai Kagaku Kogyo Kk Supersonic alarm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4984269A (enrdf_load_stackoverflow) * 1972-12-15 1974-08-13
JPS53114397A (en) * 1977-03-14 1978-10-05 Tokai Kagaku Kogyo Kk Supersonic alarm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020936A1 (en) * 1993-03-11 1994-09-15 Arakawa & Co., Ltd. Instrument for exhibition with burglar alarm device, and method and apparatus for controlling burglar alarm for exhibit
US5914658A (en) * 1993-03-11 1999-06-22 Arakawa; Hideo Crime prevention display device, exhibit crime prevention alarm control method and apparatus therefor

Also Published As

Publication number Publication date
JPS6342236B2 (enrdf_load_stackoverflow) 1988-08-22

Similar Documents

Publication Publication Date Title
DE3279800D1 (en) Pressure measuring system with ultrasonic wave
JPS5444375A (en) Ultrasonic wave reflection system
GB2151357B (en) Ultrasonic echo sounding systems
DE3071890D1 (en) Ultrasonic warning system
JPS56132897A (en) Acoustic wave projecting or receiving device
JPS569898A (en) Sound alarm
GB2013341B (en) Ultrasonic detection system
JPS54138000A (en) Ultrasonic wave warning system
JPS52146598A (en) Ultrasonic wave transmitter for burglar alarm system
GB8319858D0 (en) Interrogation device
JPS57154055A (en) Ultrasonic wave inspector
JPS56120948A (en) Ultrasonic wave type detector
JPS55115194A (en) Guard range detection system in ultrasonic alarm
GB2040454B (en) Doppler log
JPS5356061A (en) Obstacle detector using ultrasonic wave
GB2082769B (en) Improvements in ultrasonic diagnosis systems
JPS55112692A (en) Error prevention system in ultrasonic wave alarm
GB2042725B (en) Sonar detection system
GB2102607B (en) Improvements in alarms
GB2145905B (en) Audible warning device
JPS55112693A (en) Alram system using ultrasonic wave
JPS55140987A (en) Ultrasonic alarm
DE3267649D1 (en) Temperature-independent acoustical wave treating system
GB8411766D0 (en) Alarm means
JPS5614395A (en) Ultrasonic alarm