JPS499197A - - Google Patents
Info
- Publication number
- JPS499197A JPS499197A JP48033990A JP3399073A JPS499197A JP S499197 A JPS499197 A JP S499197A JP 48033990 A JP48033990 A JP 48033990A JP 3399073 A JP3399073 A JP 3399073A JP S499197 A JPS499197 A JP S499197A
- 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
- G08B13/22—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
-
- 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)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23774572A | 1972-03-24 | 1972-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS499197A true JPS499197A (US20080293856A1-20081127-C00150.png) | 1974-01-26 |
Family
ID=22894985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48033990A Pending JPS499197A (US20080293856A1-20081127-C00150.png) | 1972-03-24 | 1973-03-24 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS499197A (US20080293856A1-20081127-C00150.png) |
| GB (1) | GB1365475A (US20080293856A1-20081127-C00150.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60168330A (ja) * | 1984-02-08 | 1985-08-31 | 川村 文六 | 養殖用のり網の施設方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227141A (en) * | 1989-01-11 | 1990-07-18 | Philips Electronic Associated | Integratable transceiver |
| EP2875500A1 (en) * | 2012-07-20 | 2015-05-27 | Lince Italia S.p.A. | Intrusion system comprising at least a microwave detecting device |
| GB2553133B (en) * | 2016-08-24 | 2022-02-02 | Orisec Ltd | Motion detector |
-
1973
- 1973-03-14 GB GB1226873A patent/GB1365475A/en not_active Expired
- 1973-03-24 JP JP48033990A patent/JPS499197A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60168330A (ja) * | 1984-02-08 | 1985-08-31 | 川村 文六 | 養殖用のり網の施設方法 |
| JPH0234575B2 (US20080293856A1-20081127-C00150.png) * | 1984-02-08 | 1990-08-03 | Bunroku Kawamura |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1365475A (en) | 1974-09-04 |
