DE2641856A1 - Anordnung zur ueberwachung mindestens eines geschlossenen raumes - Google Patents

Anordnung zur ueberwachung mindestens eines geschlossenen raumes

Info

Publication number
DE2641856A1
DE2641856A1 DE19762641856 DE2641856A DE2641856A1 DE 2641856 A1 DE2641856 A1 DE 2641856A1 DE 19762641856 DE19762641856 DE 19762641856 DE 2641856 A DE2641856 A DE 2641856A DE 2641856 A1 DE2641856 A1 DE 2641856A1
Authority
DE
Germany
Prior art keywords
receiver
transmitter
arrangement according
signal
received
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.)
Pending
Application number
DE19762641856
Other languages
German (de)
English (en)
Inventor
Ernst Dipl Ing Spirig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE2641856A1 publication Critical patent/DE2641856A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
DE19762641856 1975-09-30 1976-09-17 Anordnung zur ueberwachung mindestens eines geschlossenen raumes Pending DE2641856A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1268675A CH595668A5 (xx) 1975-09-30 1975-09-30

Publications (1)

Publication Number Publication Date
DE2641856A1 true DE2641856A1 (de) 1977-04-07

Family

ID=4385455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762641856 Pending DE2641856A1 (de) 1975-09-30 1976-09-17 Anordnung zur ueberwachung mindestens eines geschlossenen raumes

Country Status (15)

Country Link
JP (1) JPS5243398A (xx)
AT (1) AT357066B (xx)
BE (1) BE846153A (xx)
BR (1) BR7606514A (xx)
CH (1) CH595668A5 (xx)
DE (1) DE2641856A1 (xx)
DK (1) DK437176A (xx)
ES (1) ES451130A1 (xx)
FI (1) FI762481A (xx)
FR (1) FR2326749A1 (xx)
GB (1) GB1554880A (xx)
NL (1) NL7609139A (xx)
NO (1) NO762694L (xx)
SE (1) SE7608698L (xx)
ZA (1) ZA764670B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608674A (en) * 1982-08-06 1986-08-26 American District Telegraph Company Constant range ultrasonic motion detector
CH702416A2 (de) * 2009-12-21 2011-06-30 Glasfreunde Gmbh Einrichtung zur Detektion von Glasbeschädigung bei Isolierverglasung.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721972A (en) * 1972-02-22 1973-03-20 Seabord Electric Ultrasonic burglar alarm system

Also Published As

Publication number Publication date
ATA694276A (de) 1979-10-15
FR2326749B1 (xx) 1981-09-25
AU1659376A (en) 1978-02-09
DK437176A (da) 1977-03-31
ZA764670B (en) 1977-07-27
GB1554880A (en) 1979-10-31
JPS5243398A (en) 1977-04-05
SE7608698L (sv) 1977-03-31
CH595668A5 (xx) 1978-02-15
ES451130A1 (es) 1977-08-16
NL7609139A (nl) 1977-04-01
NO762694L (xx) 1977-03-31
BE846153A (fr) 1976-12-31
AT357066B (de) 1980-06-10
FI762481A (xx) 1977-03-31
FR2326749A1 (fr) 1977-04-29
BR7606514A (pt) 1977-06-28

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