GB8722913D0 - Intruder detection - Google Patents

Intruder detection

Info

Publication number
GB8722913D0
GB8722913D0 GB878722913A GB8722913A GB8722913D0 GB 8722913 D0 GB8722913 D0 GB 8722913D0 GB 878722913 A GB878722913 A GB 878722913A GB 8722913 A GB8722913 A GB 8722913A GB 8722913 D0 GB8722913 D0 GB 8722913D0
Authority
GB
United Kingdom
Prior art keywords
intruder detection
intruder
detection
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.)
Withdrawn
Application number
GB878722913A
Other versions
GB2196161A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Woon K M
Original Assignee
Woon K M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Woon K M filed Critical Woon K M
Publication of GB8722913D0 publication Critical patent/GB8722913D0/en
Publication of GB2196161A publication Critical patent/GB2196161A/en
Withdrawn legal-status Critical Current

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
    • G08B25/06—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 using power transmission lines

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)
GB08722913A 1986-10-18 1987-09-30 Intruder detection Withdrawn GB2196161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868625020A GB8625020D0 (en) 1986-10-18 1986-10-18 Intruder detector

Publications (2)

Publication Number Publication Date
GB8722913D0 true GB8722913D0 (en) 1987-11-04
GB2196161A GB2196161A (en) 1988-04-20

Family

ID=10605979

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868625020A Pending GB8625020D0 (en) 1986-10-18 1986-10-18 Intruder detector
GB08722913A Withdrawn GB2196161A (en) 1986-10-18 1987-09-30 Intruder detection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868625020A Pending GB8625020D0 (en) 1986-10-18 1986-10-18 Intruder detector

Country Status (1)

Country Link
GB (2) GB8625020D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226901A (en) * 1989-01-10 1990-07-11 Austen Cleeton Alarm system
GB2245398A (en) * 1990-06-20 1992-01-02 Glazertron Ltd Detector and signalling system
GB9204733D0 (en) * 1992-03-05 1992-04-15 Fenmill Limited Alarm units and systems
GB2346469A (en) * 1999-01-21 2000-08-09 I T Guard Limited Security system
GB2447636A (en) * 2006-10-25 2008-09-24 Led Lighting Consultants Linit A led lighting system that can handle large amounts of power and have multiple units separately addressable along a single cable

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2264025A1 (en) * 1971-12-30 1973-07-05 Yukio Honda INFORMATION SYSTEM
US3886534A (en) * 1973-01-08 1975-05-27 Polar Corp Security system
US4117462A (en) * 1976-06-01 1978-09-26 Engineering Systems Corporation Ultrasonic transmitter for burglar alarm system
US4290056A (en) * 1979-07-05 1981-09-15 Ellsworth, Chow & Murphy, Inc. Protective system
GB2095014B (en) * 1981-03-18 1984-06-27 Casswell Peter Henry Alarm system
DE3370387D1 (en) * 1982-08-27 1987-04-23 Monicell Ltd Alarm system
CA1260100A (en) * 1985-06-13 1989-09-26 Donald E. Pezzolo Security control system

Also Published As

Publication number Publication date
GB2196161A (en) 1988-04-20
GB8625020D0 (en) 1986-12-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)