GB2040142B - Transponder type burglar alarm operated by vibration - Google Patents

Transponder type burglar alarm operated by vibration

Info

Publication number
GB2040142B
GB2040142B GB7944604A GB7944604A GB2040142B GB 2040142 B GB2040142 B GB 2040142B GB 7944604 A GB7944604 A GB 7944604A GB 7944604 A GB7944604 A GB 7944604A GB 2040142 B GB2040142 B GB 2040142B
Authority
GB
United Kingdom
Prior art keywords
vibration
burglar alarm
transponder type
type burglar
alarm operated
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
GB7944604A
Other versions
GB2040142A (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.)
New Japan Radio Co Ltd
Original Assignee
New Japan Radio Co 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 New Japan Radio Co Ltd filed Critical New Japan Radio Co Ltd
Publication of GB2040142A publication Critical patent/GB2040142A/en
Application granted granted Critical
Publication of GB2040142B publication Critical patent/GB2040142B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB7944604A 1978-12-31 1979-12-31 Transponder type burglar alarm operated by vibration Expired GB2040142B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16495178A JPS55112582A (en) 1978-12-31 1978-12-31 Radar for guard

Publications (2)

Publication Number Publication Date
GB2040142A GB2040142A (en) 1980-08-20
GB2040142B true GB2040142B (en) 1983-01-06

Family

ID=15802953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7944604A Expired GB2040142B (en) 1978-12-31 1979-12-31 Transponder type burglar alarm operated by vibration

Country Status (3)

Country Link
JP (1) JPS55112582A (en)
FR (1) FR2445566A1 (en)
GB (1) GB2040142B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58200180A (en) * 1982-05-17 1983-11-21 San Power Kogyo Kk Frequency sensor
GB8322258D0 (en) * 1983-08-18 1983-09-21 Holmes A Security and protection screens
DE29504013U1 (en) * 1995-03-09 1995-07-06 Hahn, Hans-Alfred, Dipl.-Ing., 58540 Meinerzhagen Integration of the alarm sensors (especially for glass breakage) for alarm systems in the glass of windows, doors, winter gardens (on car windows), further processing electronics in the window frame
FR2808380A1 (en) * 2000-04-28 2001-11-02 Jay Electronique Sa Small distance object state control/protection having remote located transmitter/receiver /control mechanism radiating object placed transponder with object state setting/removing radiated signal oscillator return
DE102012002427A1 (en) * 2012-02-09 2013-08-14 Wolfgang Beyer Method for releasing alarm functions by acquisition of movements and vibrations during e.g. burglaries entry into buildings, involves carrying-out power supply and/or energy storage for alarm components during retrieving operation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088652A5 (en) * 1970-04-20 1972-01-07 Domergue Maurice
US3859652A (en) * 1972-06-26 1975-01-07 North American Systems Corp Method and apparatus for detecting the theft of articles
US4092636A (en) * 1976-07-14 1978-05-30 Texas Instruments Incorporated Protective alarm system for window using reflected microwave energy

Also Published As

Publication number Publication date
FR2445566B1 (en) 1984-11-30
JPS55112582A (en) 1980-08-30
GB2040142A (en) 1980-08-20
FR2445566A1 (en) 1980-07-25

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Legal Events

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

Effective date: 19931231