FR2029253A5 - - Google Patents
Info
- Publication number
- FR2029253A5 FR2029253A5 FR6901018A FR6901018A FR2029253A5 FR 2029253 A5 FR2029253 A5 FR 2029253A5 FR 6901018 A FR6901018 A FR 6901018A FR 6901018 A FR6901018 A FR 6901018A FR 2029253 A5 FR2029253 A5 FR 2029253A5
- Authority
- FR
- France
- 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
Links
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
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- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6901018A FR2029253A5 (fr) | 1969-01-21 | 1969-01-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6901018A FR2029253A5 (fr) | 1969-01-21 | 1969-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2029253A5 true FR2029253A5 (fr) | 1970-10-16 |
Family
ID=9028041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6901018A Expired FR2029253A5 (fr) | 1969-01-21 | 1969-01-21 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2029253A5 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2506976A1 (fr) * | 1981-06-02 | 1982-12-03 | Btr Sa | Dispositif autonome de detection d'intrusion dans une zone gardee |
-
1969
- 1969-01-21 FR FR6901018A patent/FR2029253A5/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2506976A1 (fr) * | 1981-06-02 | 1982-12-03 | Btr Sa | Dispositif autonome de detection d'intrusion dans une zone gardee |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |