GB2064910B - Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such process - Google Patents
Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such processInfo
- Publication number
- GB2064910B GB2064910B GB8038543A GB8038543A GB2064910B GB 2064910 B GB2064910 B GB 2064910B GB 8038543 A GB8038543 A GB 8038543A GB 8038543 A GB8038543 A GB 8038543A GB 2064910 B GB2064910 B GB 2064910B
- Authority
- GB
- United Kingdom
- Prior art keywords
- surveyance
- premises
- installation
- carrying
- pulse waves
- Prior art date
- 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
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/187—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interference of a radiation field
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8038543A GB2064910B (en) | 1980-01-11 | 1980-01-11 | Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8038543A GB2064910B (en) | 1980-01-11 | 1980-01-11 | Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such process |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2064910A GB2064910A (en) | 1981-06-17 |
GB2064910B true GB2064910B (en) | 1985-01-30 |
Family
ID=10517693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8038543A Expired GB2064910B (en) | 1980-01-11 | 1980-01-11 | Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such process |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2064910B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0107042B1 (en) * | 1982-10-01 | 1987-01-07 | Cerberus Ag | Infrared detector for spotting an intruder in an area |
DE4119797C2 (en) * | 1991-06-15 | 1994-02-24 | Leuze Electronic Gmbh & Co | A transmitter, a receiver and a circuit arrangement for signal evaluation monitoring device |
-
1980
- 1980-01-11 GB GB8038543A patent/GB2064910B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2064910A (en) | 1981-06-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2121319B (en) | Showerhead | |
AU551291B2 (en) | Energy from waves | |
DE3175683D1 (en) | Radar apparatus | |
GB2107777B (en) | Process and apparatus for the installation of curtain walls | |
ZA783612B (en) | Method and apparatus for coating the inside of pipe | |
DE3065999D1 (en) | Logic apparatus for the preprocessing of alarm signals | |
JPS571726A (en) | Single wall vessel by blowing forming and its method | |
GB2116182B (en) | Intermediates for the production of picropodphyllin and picrosikkimotoxin | |
DE3031406D2 (en) | Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such process | |
DE3173570D1 (en) | Method and device for the acoustic control of an industrial installation | |
DE3176009D1 (en) | Methods and intermediates for the synthesis of 3-aryl-3-hydroxy-phthalimidines | |
DE3174392D1 (en) | Electromagnetic transducer | |
GB2085251B (en) | Radar apparatus | |
DE3169867D1 (en) | Coating process | |
GB2092417B (en) | Reverberation apparatus | |
GB2064910B (en) | Process for the surveyance of premises by means of directional pulse waves and installation for carrying out such process | |
GB2083725B (en) | Radar apparatus | |
JPS5724997A (en) | Acoustic alarm | |
DE3168356D1 (en) | Process for the carbazolation of anthrimides | |
JPS57162021A (en) | Coder utilizing audio wave having initial polarity controlled | |
EP0052882A3 (en) | Shower enclosure | |
GB2067442B (en) | Nut installation apparatus | |
YU71781A (en) | Electromagnetic siren | |
IL54894A (en) | Production of fructose-base syrups and means for carrying out such production | |
JPS57291A (en) | Sound isolated door |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19970111 |