LU73740A1 - - Google Patents
Info
- Publication number
- LU73740A1 LU73740A1 LU73740A LU73740A LU73740A1 LU 73740 A1 LU73740 A1 LU 73740A1 LU 73740 A LU73740 A LU 73740A LU 73740 A LU73740 A LU 73740A LU 73740 A1 LU73740 A1 LU 73740A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
-
- 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)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
- Burglar Alarm Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK581574AA DK135353B (da) | 1974-11-07 | 1974-11-07 | Anlæg til detektering af bevægelige objekter inden for et overvåget område ved mikrobølgediffraktion. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU73740A1 true LU73740A1 (it) | 1976-06-11 |
Family
ID=8145444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU73740A LU73740A1 (it) | 1974-11-07 | 1975-11-06 |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4010459A (it) |
| JP (1) | JPS5169996A (it) |
| BE (1) | BE835341A (it) |
| DE (1) | DE2550123A1 (it) |
| DK (1) | DK135353B (it) |
| ES (1) | ES442400A1 (it) |
| FI (1) | FI753076A (it) |
| FR (1) | FR2290714A1 (it) |
| GB (1) | GB1491578A (it) |
| IT (1) | IT1048772B (it) |
| LU (1) | LU73740A1 (it) |
| NL (1) | NL7512761A (it) |
| NO (1) | NO139019C (it) |
| PH (1) | PH12105A (it) |
| SE (1) | SE401871B (it) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035798A (en) * | 1974-03-27 | 1977-07-12 | Pittway Corporation | Ultrasonic intrusion detection system |
| FR2315733A1 (fr) * | 1975-06-23 | 1977-01-21 | Tacussel Maurice | Radar, notamment pour la surveillance d'un local |
| JPS5910630Y2 (ja) * | 1976-03-19 | 1984-04-03 | ホーチキ株式会社 | 移動物体警報装置 |
| US4484182A (en) * | 1981-07-01 | 1984-11-20 | Shorrock Developments Limited | Intruder detection apparatus for functioning free of disturbance while in close proximity to high-power pulse-moldulated radars |
| US4392068A (en) * | 1981-07-17 | 1983-07-05 | General Electric Company | Capacitive commutating filter |
| FR2538935A1 (fr) * | 1982-12-30 | 1984-07-06 | Thomson Csf | Barriere hyperfrequence a grande sensibilite |
| GB2141853A (en) * | 1983-04-29 | 1985-01-03 | Edward Desmond Bishop | Improvements in or relating to automatic light switches |
| US4605922A (en) * | 1984-09-14 | 1986-08-12 | Racon, Inc. | Intrusion detector |
| FR2628556A1 (fr) * | 1988-03-11 | 1989-09-15 | Milin Marcel | Detection de modification d'un volume par un corps conducteur |
| US5576627A (en) * | 1994-09-06 | 1996-11-19 | The Regents Of The University Of California | Narrow field electromagnetic sensor system and method |
| FR2730578B1 (fr) * | 1995-02-09 | 1997-03-14 | Tranie Bernard | Systeme de detection par barriere de champ electromagnetique |
| US10773740B2 (en) * | 2018-06-19 | 2020-09-15 | Dwayne Carter | Oncoming train alarm assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3569923A (en) * | 1967-10-30 | 1971-03-09 | Us Navy | Adaptive acoustic detector apparatus |
| GB1210181A (en) * | 1968-04-10 | 1970-10-28 | Rank Organisation Ltd | Improvements in or relating to electrical filter devices |
| US3725888A (en) * | 1971-04-05 | 1973-04-03 | Pyrotector Inc | Detector system |
| US3761816A (en) * | 1972-09-08 | 1973-09-25 | Bell Telephone Labor Inc | Data set employing a commutating capacitor, tracking, notch filter |
| US3877002A (en) * | 1973-05-25 | 1975-04-08 | Omni Spectra Inc | Intrusion detecting system |
-
1974
- 1974-11-07 DK DK581574AA patent/DK135353B/da not_active IP Right Cessation
-
1975
- 1975-10-31 NL NL7512761A patent/NL7512761A/xx not_active Application Discontinuation
- 1975-11-04 FI FI753076A patent/FI753076A/fi not_active Application Discontinuation
- 1975-11-05 FR FR7533800A patent/FR2290714A1/fr active Granted
- 1975-11-05 US US05/628,973 patent/US4010459A/en not_active Expired - Lifetime
- 1975-11-05 NO NO753701A patent/NO139019C/no unknown
- 1975-11-06 SE SE7512466A patent/SE401871B/xx unknown
- 1975-11-06 LU LU73740A patent/LU73740A1/xx unknown
- 1975-11-06 JP JP50133562A patent/JPS5169996A/ja active Pending
- 1975-11-06 ES ES442400A patent/ES442400A1/es not_active Expired
- 1975-11-07 IT IT29082/75A patent/IT1048772B/it active
- 1975-11-07 DE DE19752550123 patent/DE2550123A1/de not_active Withdrawn
- 1975-11-07 PH PH17747A patent/PH12105A/en unknown
- 1975-11-07 BE BE161665A patent/BE835341A/xx unknown
- 1975-11-07 GB GB46235/75A patent/GB1491578A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE401871B (sv) | 1978-05-29 |
| FR2290714B3 (it) | 1979-09-21 |
| DK581574A (it) | 1976-05-08 |
| SE7512466L (sv) | 1976-05-10 |
| NO753701L (it) | 1976-05-10 |
| GB1491578A (en) | 1977-11-09 |
| NL7512761A (nl) | 1976-05-11 |
| DE2550123A1 (de) | 1976-05-20 |
| US4010459A (en) | 1977-03-01 |
| FR2290714A1 (fr) | 1976-06-04 |
| IT1048772B (it) | 1980-12-20 |
| AU8642875A (en) | 1977-05-12 |
| NO139019B (no) | 1978-09-11 |
| FI753076A (it) | 1976-05-08 |
| PH12105A (en) | 1978-11-02 |
| BE835341A (fr) | 1976-03-01 |
| DK135353C (it) | 1977-08-29 |
| ES442400A1 (es) | 1977-05-01 |
| JPS5169996A (it) | 1976-06-17 |
| DK135353B (da) | 1977-04-12 |
| NO139019C (no) | 1978-12-20 |