GB2190192B - Improvements in or relating to security systems - Google Patents

Improvements in or relating to security systems

Info

Publication number
GB2190192B
GB2190192B GB8709443A GB8709443A GB2190192B GB 2190192 B GB2190192 B GB 2190192B GB 8709443 A GB8709443 A GB 8709443A GB 8709443 A GB8709443 A GB 8709443A GB 2190192 B GB2190192 B GB 2190192B
Authority
GB
United Kingdom
Prior art keywords
relating
security systems
security
systems
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
Application number
GB8709443A
Other versions
GB8709443D0 (en
GB2190192A (en
Inventor
Christopher Newton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8709443D0 publication Critical patent/GB8709443D0/en
Publication of GB2190192A publication Critical patent/GB2190192A/en
Application granted granted Critical
Publication of GB2190192B publication Critical patent/GB2190192B/en
Expired 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
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • 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
    • G08B25/10—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 wireless transmission systems
GB8709443A 1986-04-23 1987-04-21 Improvements in or relating to security systems Expired GB2190192B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868609947A GB8609947D0 (en) 1986-04-23 1986-04-23 Security systems

Publications (3)

Publication Number Publication Date
GB8709443D0 GB8709443D0 (en) 1987-05-28
GB2190192A GB2190192A (en) 1987-11-11
GB2190192B true GB2190192B (en) 1989-12-06

Family

ID=10596717

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868609947A Pending GB8609947D0 (en) 1986-04-23 1986-04-23 Security systems
GB8709443A Expired GB2190192B (en) 1986-04-23 1987-04-21 Improvements in or relating to security systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868609947A Pending GB8609947D0 (en) 1986-04-23 1986-04-23 Security systems

Country Status (1)

Country Link
GB (2) GB8609947D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8915818D0 (en) * 1989-07-11 1989-11-08 M L Aviat Limited Infra red intruder detector
GB2260401A (en) * 1991-08-10 1993-04-14 Christopher Newton Security systems
GB2273593A (en) * 1992-12-18 1994-06-22 Dynamic Signal Processing Ltd Monitoring landfill sites
GB2293038A (en) * 1994-09-08 1996-03-13 John Beddow Security alarm system

Also Published As

Publication number Publication date
GB8609947D0 (en) 1986-05-29
GB8709443D0 (en) 1987-05-28
GB2190192A (en) 1987-11-11

Similar Documents

Publication Publication Date Title
GB2185670B (en) Improvements in or relating to viewdata systems
EP0245943A3 (en) Improvements in or relating to electric graphic systems
GB8701956D0 (en) Security system
GB8712661D0 (en) Security system
GB2225976B (en) Improvement in or relating to marking-out
GB8604622D0 (en) Security system
GB2215281B (en) Improvements in or relating to minehunting systems
GB8829201D0 (en) Improvements in or relating to organic systems
GB9016048D0 (en) Improvements in or relating to safety systems
GB2190192B (en) Improvements in or relating to security systems
GB2191733B (en) Security system
GB2190409B (en) Improvements in or relating to acoustic systems
GB2199885B (en) Improvements in or relating to fastening devices
GB8603049D0 (en) Security system
GB2218063B (en) Improvements in or relating to security arrangements
GB2180880B (en) Improvements in or relating to locking arrangements
GB8729726D0 (en) Improvements in/relating to organic systems
GB8806484D0 (en) Improvements in & relating to security devices
GB2227395B (en) Improvements in or relating to communications systems
GB2240360B (en) Improvements in or relating to locking devices
GB8922268D0 (en) Improvements in or relating to drainage systems
GB2188786B (en) Improvements in or relating to pulse-shapers
GB2328575B (en) Improvements in or relating to range detection
GB8606400D0 (en) Security system
GB8622581D0 (en) Security system

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940421