GB2138187B - Burglar alarm system - Google Patents
Burglar alarm systemInfo
- Publication number
- GB2138187B GB2138187B GB08309551A GB8309551A GB2138187B GB 2138187 B GB2138187 B GB 2138187B GB 08309551 A GB08309551 A GB 08309551A GB 8309551 A GB8309551 A GB 8309551A GB 2138187 B GB2138187 B GB 2138187B
- Authority
- GB
- United Kingdom
- Prior art keywords
- alarm system
- burglar alarm
- burglar
- alarm
- 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
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08309551A GB2138187B (en) | 1983-04-08 | 1983-04-08 | Burglar alarm system |
EP84302290A EP0125011A1 (en) | 1983-04-08 | 1984-04-04 | Burglar alarm system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08309551A GB2138187B (en) | 1983-04-08 | 1983-04-08 | Burglar alarm system |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2138187A GB2138187A (en) | 1984-10-17 |
GB2138187B true GB2138187B (en) | 1986-09-10 |
Family
ID=10540804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08309551A Expired GB2138187B (en) | 1983-04-08 | 1983-04-08 | Burglar alarm system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0125011A1 (en) |
GB (1) | GB2138187B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2425187B (en) * | 2005-04-15 | 2010-09-22 | P G Drives Technology Ltd | Electronic control system |
FR2897968B1 (en) * | 2006-02-24 | 2008-11-21 | Airbus France Sas | FIRE DETECTION SYSTEM AND AIRCRAFT EQUIPPED WITH SUCH A SYSTEM |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2239318A1 (en) * | 1972-08-10 | 1974-02-21 | Nigel Wickham Lewis | ELECTRIC ALARM SYSTEM |
US4118700A (en) * | 1977-05-31 | 1978-10-03 | Rca Corporation | Single wire transmission of multiple switch operations |
US4359721A (en) * | 1978-10-16 | 1982-11-16 | American District Telegraph Company | Two-wire multi-zone alarm system |
DE2935335C2 (en) * | 1979-08-31 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | DC alarm system |
DE3043357C2 (en) * | 1980-11-17 | 1985-01-17 | Siemens AG, 1000 Berlin und 8000 München | Method and device for measuring resistance on a signal line |
GB2117150B (en) * | 1982-02-26 | 1986-03-19 | Morrison John M | Intruder alarm system |
-
1983
- 1983-04-08 GB GB08309551A patent/GB2138187B/en not_active Expired
-
1984
- 1984-04-04 EP EP84302290A patent/EP0125011A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0125011A1 (en) | 1984-11-14 |
GB2138187A (en) | 1984-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |