JPS6245600B2 - - Google Patents

Info

Publication number
JPS6245600B2
JPS6245600B2 JP1900279A JP1900279A JPS6245600B2 JP S6245600 B2 JPS6245600 B2 JP S6245600B2 JP 1900279 A JP1900279 A JP 1900279A JP 1900279 A JP1900279 A JP 1900279A JP S6245600 B2 JPS6245600 B2 JP S6245600B2
Authority
JP
Japan
Prior art keywords
ultrasonic
area
reflection pattern
pattern
pulse
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.)
Expired
Application number
JP1900279A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55112693A (en
Inventor
Shiro 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.)
SEKOMU KK
Original Assignee
SEKOMU 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 SEKOMU KK filed Critical SEKOMU KK
Priority to JP1900279A priority Critical patent/JPS55112693A/ja
Publication of JPS55112693A publication Critical patent/JPS55112693A/ja
Publication of JPS6245600B2 publication Critical patent/JPS6245600B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
JP1900279A 1979-02-22 1979-02-22 Alram system using ultrasonic wave Granted JPS55112693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1900279A JPS55112693A (en) 1979-02-22 1979-02-22 Alram system using ultrasonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1900279A JPS55112693A (en) 1979-02-22 1979-02-22 Alram system using ultrasonic wave

Publications (2)

Publication Number Publication Date
JPS55112693A JPS55112693A (en) 1980-08-30
JPS6245600B2 true JPS6245600B2 (enExample) 1987-09-28

Family

ID=11987320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1900279A Granted JPS55112693A (en) 1979-02-22 1979-02-22 Alram system using ultrasonic wave

Country Status (1)

Country Link
JP (1) JPS55112693A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0529178Y2 (enExample) * 1985-06-25 1993-07-27
JP5170277B2 (ja) * 2001-03-02 2013-03-27 住友大阪セメント株式会社 監視システム
JP4776807B2 (ja) * 2001-03-02 2011-09-21 住友大阪セメント株式会社 監視システム

Also Published As

Publication number Publication date
JPS55112693A (en) 1980-08-30

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