BE718961A - - Google Patents
Info
- Publication number
- BE718961A BE718961A BE718961DA BE718961A BE 718961 A BE718961 A BE 718961A BE 718961D A BE718961D A BE 718961DA BE 718961 A BE718961 A BE 718961A
- Authority
- BE
- Belgium
- Prior art keywords
- signal
- converter
- coupled
- alarm
- receiver
- Prior art date
Links
- 238000001914 filtration Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000011664 signaling Effects 0.000 description 9
- 230000010287 polarization Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 241001653634 Russula vesca Species 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE718961 | 1968-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE718961A true BE718961A (OSRAM) | 1969-01-16 |
Family
ID=3853339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE718961D BE718961A (OSRAM) | 1968-08-02 | 1968-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE718961A (OSRAM) |
-
1968
- 1968-08-02 BE BE718961D patent/BE718961A/fr unknown
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