JPS4986036A - - Google Patents
Info
- Publication number
- JPS4986036A JPS4986036A JP48070903A JP7090373A JPS4986036A JP S4986036 A JPS4986036 A JP S4986036A JP 48070903 A JP48070903 A JP 48070903A JP 7090373 A JP7090373 A JP 7090373A JP S4986036 A JPS4986036 A JP S4986036A
- Authority
- JP
- Japan
- 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
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
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
- G08B13/1681—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using infrasonic detecting means, e.g. a microphone operating below the audible frequency range
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7208873A NL7208873A (xx) | 1972-06-28 | 1972-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4986036A true JPS4986036A (xx) | 1974-08-17 |
Family
ID=19816393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48070903A Pending JPS4986036A (xx) | 1972-06-28 | 1973-06-25 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4986036A (xx) |
| DE (1) | DE2329593A1 (xx) |
| FR (1) | FR2191180B1 (xx) |
| IT (1) | IT986585B (xx) |
| NL (1) | NL7208873A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2560701B1 (fr) * | 1984-03-05 | 1987-04-17 | Sogesec Sarl | Detecteur d'acces a pression differentielle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1267874A (fr) * | 1960-06-14 | 1961-07-28 | Wattson Sa | Procédé et dispositif détecteur de franchissement localisant |
| IL29843A (en) * | 1967-08-24 | 1971-07-28 | Westinghouse Electric Corp | Intruder detecting apparatus |
-
1972
- 1972-06-28 NL NL7208873A patent/NL7208873A/xx unknown
-
1973
- 1973-06-09 DE DE19732329593 patent/DE2329593A1/de active Pending
- 1973-06-25 IT IT6889273A patent/IT986585B/it active
- 1973-06-25 JP JP48070903A patent/JPS4986036A/ja active Pending
- 1973-06-26 FR FR7323346A patent/FR2191180B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2191180A1 (xx) | 1974-02-01 |
| DE2329593A1 (de) | 1974-01-10 |
| IT986585B (it) | 1975-01-30 |
| NL7208873A (xx) | 1974-01-02 |
| FR2191180B1 (xx) | 1976-09-17 |