BE748053A - Systeme de surveillance electronique - Google Patents
Systeme de surveillance electroniqueInfo
- Publication number
- BE748053A BE748053A BE748053DA BE748053A BE 748053 A BE748053 A BE 748053A BE 748053D A BE748053D A BE 748053DA BE 748053 A BE748053 A BE 748053A
- Authority
- BE
- Belgium
- Prior art keywords
- monitoring system
- electronic monitoring
- electronic
- monitoring
- Prior art date
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
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/755—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using delay lines, e.g. acoustic delay lines
-
- 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
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/753—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using frequency selective elements, e.g. resonator
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Burglar Alarm Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU5297069 | 1969-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE748053A true BE748053A (fr) | 1970-09-28 |
Family
ID=3739082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE748053D BE748053A (fr) | 1969-04-02 | 1970-03-27 | Systeme de surveillance electronique |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5122797B1 (de) |
AR (1) | AR211833A1 (de) |
BE (1) | BE748053A (de) |
BR (1) | BR7017853D0 (de) |
CH (1) | CH522259A (de) |
DE (1) | DE2015319C3 (de) |
FR (1) | FR2038186A1 (de) |
GB (1) | GB1290097A (de) |
IL (1) | IL34201A0 (de) |
LU (1) | LU60651A1 (de) |
NL (1) | NL172893C (de) |
SE (1) | SE341363B (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4481428A (en) * | 1981-05-19 | 1984-11-06 | Security Tag Systems, Inc. | Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation |
US4413254A (en) * | 1981-09-04 | 1983-11-01 | Sensormatic Electronics Corporation | Combined radio and magnetic energy responsive surveillance marker and system |
US4642640A (en) * | 1983-04-25 | 1987-02-10 | Sensormatic Electronics Corporation | Signal receptor-reradiator and surveillance tag using the same |
US4736207A (en) * | 1986-01-31 | 1988-04-05 | Sensormatic Electronics Corporation | Tag device and method for electronic article surveillance |
US4951057A (en) * | 1989-11-13 | 1990-08-21 | X-Cyte, Inc. | Inductive input/output coupling for a surface acoustic wave device |
US5095240A (en) * | 1989-11-13 | 1992-03-10 | X-Cyte, Inc. | Inductively coupled saw device and method for making the same |
WO2019238201A1 (en) * | 2018-06-11 | 2019-12-19 | Hivetracker Sa | A sytem for determining the location of mobile units in a warehouse and a warehouse provided with such system |
-
1970
- 1970-03-24 GB GB1290097D patent/GB1290097A/en not_active Expired
- 1970-03-27 BE BE748053D patent/BE748053A/xx not_active IP Right Cessation
- 1970-03-30 IL IL34201A patent/IL34201A0/xx unknown
- 1970-03-31 BR BR217853/70A patent/BR7017853D0/pt unknown
- 1970-03-31 SE SE04419/70A patent/SE341363B/xx unknown
- 1970-03-31 DE DE2015319A patent/DE2015319C3/de not_active Expired
- 1970-04-01 CH CH481470A patent/CH522259A/fr not_active IP Right Cessation
- 1970-04-02 JP JP45028260A patent/JPS5122797B1/ja active Pending
- 1970-04-02 NL NLAANVRAGE7004749,A patent/NL172893C/xx not_active IP Right Cessation
- 1970-04-02 LU LU60651D patent/LU60651A1/xx unknown
- 1970-04-02 FR FR7011981A patent/FR2038186A1/fr active Pending
- 1970-04-03 AR AR227854A patent/AR211833A1/es active
Also Published As
Publication number | Publication date |
---|---|
LU60651A1 (de) | 1971-06-14 |
BR7017853D0 (pt) | 1973-04-17 |
DE2015319B2 (de) | 1979-06-28 |
NL172893B (nl) | 1983-06-01 |
NL7004749A (de) | 1970-10-06 |
CH522259A (fr) | 1972-06-15 |
JPS5122797B1 (de) | 1976-07-12 |
IL34201A0 (en) | 1970-05-21 |
NL172893C (nl) | 1983-11-01 |
GB1290097A (de) | 1972-09-20 |
FR2038186A1 (de) | 1971-01-08 |
DE2015319A1 (de) | 1970-10-15 |
AR211833A1 (es) | 1978-03-31 |
DE2015319C3 (de) | 1980-02-21 |
SE341363B (de) | 1971-12-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: UNISEARCH LTD Effective date: 19900327 |