JPH0119198B2 - - Google Patents

Info

Publication number
JPH0119198B2
JPH0119198B2 JP55112646A JP11264680A JPH0119198B2 JP H0119198 B2 JPH0119198 B2 JP H0119198B2 JP 55112646 A JP55112646 A JP 55112646A JP 11264680 A JP11264680 A JP 11264680A JP H0119198 B2 JPH0119198 B2 JP H0119198B2
Authority
JP
Japan
Prior art keywords
pattern
calculation circuit
average
reflected wave
ultrasonic
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
JP55112646A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5739493A (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 JP11264680A priority Critical patent/JPS5739493A/ja
Publication of JPS5739493A publication Critical patent/JPS5739493A/ja
Publication of JPH0119198B2 publication Critical patent/JPH0119198B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
JP11264680A 1980-08-18 1980-08-18 Supersonic warning system Granted JPS5739493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11264680A JPS5739493A (en) 1980-08-18 1980-08-18 Supersonic warning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11264680A JPS5739493A (en) 1980-08-18 1980-08-18 Supersonic warning system

Publications (2)

Publication Number Publication Date
JPS5739493A JPS5739493A (en) 1982-03-04
JPH0119198B2 true JPH0119198B2 (cs) 1989-04-10

Family

ID=14591938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11264680A Granted JPS5739493A (en) 1980-08-18 1980-08-18 Supersonic warning system

Country Status (1)

Country Link
JP (1) JPS5739493A (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2310720B (en) * 1996-02-29 2000-07-12 Denso Corp Intrusion detecting apparatus for a vehicle
JP2006317356A (ja) * 2005-05-13 2006-11-24 Toto Ltd 超音波人体センサ及びそれを有するトイレ装置、並びに人体検出方法
JP5761942B2 (ja) * 2010-08-06 2015-08-12 セコム株式会社 物体検出センサ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041793B2 (ja) * 1978-04-19 1985-09-18 日本警備保障株式会社 超音波による警戒方式

Also Published As

Publication number Publication date
JPS5739493A (en) 1982-03-04

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