GB2069206B - Instrusion warning systems - Google Patents

Instrusion warning systems

Info

Publication number
GB2069206B
GB2069206B GB8101157A GB8101157A GB2069206B GB 2069206 B GB2069206 B GB 2069206B GB 8101157 A GB8101157 A GB 8101157A GB 8101157 A GB8101157 A GB 8101157A GB 2069206 B GB2069206 B GB 2069206B
Authority
GB
United Kingdom
Prior art keywords
instrusion
warning systems
warning
systems
instrusion warning
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
GB8101157A
Other versions
GB2069206A (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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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
Priority claimed from JP333080A external-priority patent/JPS56101294A/en
Priority claimed from JP4232480A external-priority patent/JPS56140487A/en
Priority claimed from JP55168918A external-priority patent/JPS603625B2/en
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Publication of GB2069206A publication Critical patent/GB2069206A/en
Application granted granted Critical
Publication of GB2069206B publication Critical patent/GB2069206B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB8101157A 1980-01-15 1981-01-15 Instrusion warning systems Expired GB2069206B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP333080A JPS56101294A (en) 1980-01-15 1980-01-15 Electric field type human body detector
JP4232480A JPS56140487A (en) 1980-03-31 1980-03-31 Electric field type human body detector
JP55168918A JPS603625B2 (en) 1980-11-28 1980-11-28 Electric field human body detector

Publications (2)

Publication Number Publication Date
GB2069206A GB2069206A (en) 1981-08-19
GB2069206B true GB2069206B (en) 1984-07-11

Family

ID=27275768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8101157A Expired GB2069206B (en) 1980-01-15 1981-01-15 Instrusion warning systems

Country Status (6)

Country Link
AU (1) AU542678B2 (en)
DE (2) DE3152533C2 (en)
FR (1) FR2473764B1 (en)
GB (1) GB2069206B (en)
IT (1) IT1210603B (en)
SE (1) SE450673B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140487A (en) * 1980-03-31 1981-11-02 Matsushita Electric Works Ltd Electric field type human body detector
US4621258A (en) * 1983-08-22 1986-11-04 Campman James P Proximity detecting apparatus
DE3439015A1 (en) * 1984-10-25 1986-04-30 Horizont Gerätewerk GmbH, 3540 Korbach ELECTRIC FENCE
IT1218109B (en) * 1986-05-02 1990-04-12 Dei Dispositivi Elettronici In EQUIPMENT FOR DETECTION OF MOVING BODIES ON THE GROUND IN A PROTECTED AREA, IN PARTICULAR FOR MILITARY AND RELATED USES
GB2279757B (en) * 1990-11-16 1995-06-07 Moonstone Technology Ltd Device for determining the presence and/or characteristics of an object or a substance
SE9303582D0 (en) * 1993-10-29 1993-10-29 Goeran Hansson Touch and theft protection for office equipment
JPH11512803A (en) * 1995-09-25 1999-11-02 セレンセン，イェルン Method and apparatus for detecting the distance between a first object and a second object
ITTO980452A1 (en) * 1998-05-26 1999-11-26 Elvis Sas Di Zannier Gian Carl DEVICE AND METHOD OF DETECTION OF THE PRESENCE OF THE HUMAN BODY.
GB0018914D0 (en) * 2000-08-03 2000-09-20 Rees John C Electronic safety control
FR2859302B1 (en) * 2003-08-27 2005-11-11 Serpe Iesm Soc D Etudes Et De SYSTEM FOR DETECTING AND LOCATING FAILURES IN AN ELECTRIFIED FENCE
AT512650B1 (en) * 2012-07-06 2013-10-15 Abatec Group Ag Truck anti-theft device by means of a tariff line
DE102018124389A1 (en) * 2018-10-02 2020-04-02 Livisi Gmbh Method and device for recognizing a person in a room

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421771A (en) * 1942-07-17 1947-06-10 Glenn H Browning Approach protective system
US3230518A (en) * 1961-03-20 1966-01-18 American District Telegraph Co Method of detecting intruders and intruder detection apparatus of the capacity-type utilizing balanced asymmetric fields
US3462755A (en) * 1966-04-26 1969-08-19 Mosler Research Products Inc Capacity alarm
GB1320153A (en) * 1969-06-26 1973-06-13 Brown Y Alarm systems
US3697971A (en) * 1970-12-30 1972-10-10 Siegfried Domin Alarm system
US3829850A (en) * 1971-12-17 1974-08-13 Tyco Laboratories Inc Proximity detector
US4064499A (en) * 1975-09-12 1977-12-20 Stellar Systems, Inc. Intrusion warning system utilizing an electric field

Also Published As

Publication number Publication date
DE3100936A1 (en) 1981-12-03
DE3100936C2 (en) 1985-10-31
AU542678B2 (en) 1985-03-07
DE3152533C2 (en) 1984-06-07
SE450673B (en) 1987-07-13
FR2473764A1 (en) 1981-07-17
FR2473764B1 (en) 1985-08-09
IT8167033A0 (en) 1981-01-14
AU6624081A (en) 1981-07-30
GB2069206A (en) 1981-08-19
SE8100184L (en) 1981-07-16
IT1210603B (en) 1989-09-14

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950619

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970115