BE64T1 - SECURITY ALARM SYSTEMS - Google Patents

SECURITY ALARM SYSTEMS

Info

Publication number
BE64T1
BE64T1 BEBTR64A BE79301754A BE64T1 BE 64 T1 BE64 T1 BE 64T1 BE BTR64 A BEBTR64 A BE BTR64A BE 79301754 A BE79301754 A BE 79301754A BE 64 T1 BE64 T1 BE 64T1
Authority
BE
Belgium
Prior art keywords
alarm systems
security alarm
security
systems
alarm
Prior art date
Application number
BEBTR64A
Other languages
French (fr)
Inventor
J Sadler
Original Assignee
Chubb Electronics Ltd
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 Chubb Electronics Ltd filed Critical Chubb Electronics Ltd
Application granted granted Critical
Publication of BE64T1 publication Critical patent/BE64T1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • G08B29/08—Signalling of tampering with the line circuit
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/123—Checking intermittently signalling or alarm systems of line circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)
BEBTR64A 1978-08-28 1979-08-28 SECURITY ALARM SYSTEMS BE64T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/937,577 US4292628A (en) 1978-08-28 1978-08-28 Fibre optic security system

Publications (1)

Publication Number Publication Date
BE64T1 true BE64T1 (en) 1980-05-16

Family

ID=25470123

Family Applications (1)

Application Number Title Priority Date Filing Date
BEBTR64A BE64T1 (en) 1978-08-28 1979-08-28 SECURITY ALARM SYSTEMS

Country Status (9)

Country Link
US (1) US4292628A (en)
AT (1) AT381403B (en)
BE (1) BE64T1 (en)
CA (1) CA1128165A (en)
CH (1) CH636461A5 (en)
FR (1) FR2453455A1 (en)
GB (1) GB2044971B (en)
IT (1) IT1149216B (en)
NL (1) NL7915030A (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5683895U (en) * 1979-12-01 1981-07-06
US4355237A (en) * 1980-08-04 1982-10-19 Texas Instruments Incorporated High speed AC/DC coupler
US4482890A (en) * 1981-01-22 1984-11-13 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Weight responsive intrusion detector using dual optical fibers
DE3278887D1 (en) * 1981-03-12 1988-09-15 Ici Plc Level and interface detection
CH645765A5 (en) * 1982-03-02 1984-10-15 Cabloptic Sa Method for detection of interruption of transmission signal lights and device for implementing the method.
US4523186A (en) * 1982-08-12 1985-06-11 The United States Of America As Represented By The United States Department Of Energy Seal system with integral detector
SE438396B (en) * 1983-09-01 1985-04-15 Ericsson Telefon Ab L M DEVICE TO DETECT LIGHT ENERGY DRAINAGE FROM OPTICAL FIBERS
IL78728A (en) * 1986-05-08 1990-07-12 Magal Security Systems Ltd Security fence
IL78856A (en) * 1986-05-20 1990-07-12 Magal Security Systems Ltd Sensor for a security fence
FR2599532A1 (en) * 1986-05-30 1987-12-04 Commissariat Energie Atomique FIBER OPTIC MONITORING DEVICE
SE459052B (en) * 1987-09-09 1989-05-29 Foersvarets Forskningsanstalt SET TO DETECT EXTERNAL POWER ON AN OPTICAL CABLE
US4920334A (en) * 1989-04-24 1990-04-24 Devolpi Dean R Security system for bicycles, ski racks and coat racks
US5119065A (en) * 1991-01-14 1992-06-02 Wiehagen Fred A Vehicle protection system
US5111184A (en) * 1991-02-25 1992-05-05 Atlantic Research Corporation Tamper-proof device for detecting opening and closing of a secure container
US6714895B2 (en) * 2000-06-28 2004-03-30 A.L. Air Data, Inc. Lamp monitoring and control unit and method
US6359555B1 (en) * 1997-04-16 2002-03-19 A.L. Airdata, Inc. Alarm monitoring and control system and method
US6035266A (en) * 1997-04-16 2000-03-07 A.L. Air Data, Inc. Lamp monitoring and control system and method
AUPQ420699A0 (en) * 1999-11-24 1999-12-16 Future Fibre Technologies Pty Ltd A method of perimeter barrier monitoring and systems formed for that purpose
US6574022B2 (en) * 2001-03-19 2003-06-03 Alan Y. Chow Integral differential optical signal receiver
US7683312B2 (en) 2007-10-23 2010-03-23 Us Sensor Systems, Inc. Fiber-optic interrogator with normalization filters
US8965150B2 (en) 2008-05-29 2015-02-24 Commscope, Inc. Of North Carolina Optical switch assembly for detecting movement
US8368534B2 (en) * 2008-05-29 2013-02-05 Commscope Inc. Of North Carolina Optical fiber systems and methods for monitoring remote door access
WO2011050275A2 (en) 2009-10-23 2011-04-28 Us Sensor Systems, Inc. Fiber optic microseismic sensing systems
US9158032B2 (en) 2010-02-18 2015-10-13 US Seismic Systems, Inc. Optical detection systems and methods of using the same
US8983287B2 (en) 2010-02-18 2015-03-17 US Seismic Systems, Inc. Fiber optic personnel safety systems and methods of using the same
US8401354B2 (en) * 2010-02-23 2013-03-19 US Seismic Systems, Inc. Fiber optic security systems and methods of using the same
US8701481B2 (en) 2010-07-06 2014-04-22 US Seismic Systems, Inc. Borehole sensing and clamping systems and methods of using the same
WO2012103085A2 (en) 2011-01-25 2012-08-02 US Seismic Systems, Inc. Light powered communication systems and methods of using the same
US9217801B2 (en) 2011-03-08 2015-12-22 Pacific Western Bank Fiber optic acoustic sensor arrays and systems, and methods of fabricating the same
CN103186962A (en) * 2011-12-29 2013-07-03 鸿富锦精密工业（深圳）有限公司 Device capable of protecting anti-theft alertor and method for protecting anti-theft alertor
US9441433B2 (en) 2012-07-27 2016-09-13 Avalon Sciences, Ltd Remotely actuated clamping devices for borehole seismic sensing systems and methods of operating the same

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE671813A (en) * 1965-11-04 1966-05-04 Merlin Gerin
GB1122068A (en) * 1965-12-08 1968-07-31 Ass Elect Ind Improvements relating to data transmission apparatus
US3452205A (en) * 1967-01-13 1969-06-24 Ibm Defect detecting scanner with output analyzed in the frequency domain
US3633035A (en) * 1968-11-16 1972-01-04 Nippon Selfoc Co Ltd Multiplexed optical communications system
US3605082A (en) * 1969-04-16 1971-09-14 Laser Systems Corp Intruder detection system
US3714644A (en) * 1970-11-25 1973-01-30 H Hellstrom Alarms for night latch
US3714647A (en) * 1971-04-26 1973-01-30 A Litman Light pulse burglar alarm
US3938124A (en) * 1971-07-06 1976-02-10 Salient Electronics, Inc. Alarm system sensing device
US3717769A (en) * 1971-08-16 1973-02-20 Bell Telephone Labor Inc Optical fiber equalizer
CA1008146A (en) * 1973-02-26 1977-04-05 Andre Rekai Optical self-checking level detector
US3924253A (en) * 1974-01-16 1975-12-02 Redactron Corp Indicating system using pulsed optical techniques
FR2280072A1 (en) * 1974-07-26 1976-02-20 Douillie Remy MEASUREMENT PROCEDURE AND EQUIPMENT FOR LOCATING A BREAKAGE ON AN OPTICAL CABLE
US3981592A (en) * 1975-03-31 1976-09-21 The United States Of America As Represented By The Secretary Of The Navy System for locating breaks in fiber optic filaments
US4000416A (en) * 1975-07-11 1976-12-28 International Telephone And Telegraph Corporation Multi-core optical communications fiber
FR2331802A1 (en) * 1975-11-14 1977-06-10 Thomson Csf OPTICAL COUPLING DEVICE FOR INTERCONNECTION OF LIGHT GUIDES IN AN OPTICAL TRANSMISSION SYSTEM, AND CORRESPONDING TRANSMISSION SYSTEM
US4060803A (en) * 1976-02-09 1977-11-29 Audio Alert, Inc. Security alarm system with audio monitoring capability
GB1497995A (en) * 1976-04-13 1978-01-12 Standard Telephones Cables Ltd Fibre optic acoustic monitoring arrangement
US4070091A (en) * 1976-04-16 1978-01-24 Northern Telecom Limited Optical fibre with enhanced security

Also Published As

Publication number Publication date
ATA990279A (en) 1986-02-15
CH636461A5 (en) 1983-05-31
GB2044971A (en) 1980-10-22
GB2044971B (en) 1983-01-12
FR2453455B1 (en) 1985-02-15
AT381403B (en) 1986-10-10
NL7915030A (en) 1980-08-29
US4292628A (en) 1981-09-29
CA1128165A (en) 1982-07-20
IT1149216B (en) 1986-12-03
FR2453455A1 (en) 1980-10-31

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Legal Events

Date Code Title Description
ERE Patent lapsed

Free format text: 860831 *CHUBB ELECTRONICS LTD