GB9216101D0 - Tracking systems - Google Patents

Tracking systems

Info

Publication number
GB9216101D0
GB9216101D0 GB929216101A GB9216101A GB9216101D0 GB 9216101 D0 GB9216101 D0 GB 9216101D0 GB 929216101 A GB929216101 A GB 929216101A GB 9216101 A GB9216101 A GB 9216101A GB 9216101 D0 GB9216101 D0 GB 9216101D0
Authority
GB
United Kingdom
Prior art keywords
tracking systems
tracking
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.)
Granted
Application number
GB929216101A
Other versions
GB2266643B (en
GB2266643A (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.)
MULTILOP Ltd
Original Assignee
MULTILOP 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 MULTILOP Ltd filed Critical MULTILOP Ltd
Publication of GB9216101D0 publication Critical patent/GB9216101D0/en
Priority to EP93911860A priority Critical patent/EP0638192A1/en
Priority to AU51562/93A priority patent/AU5156293A/en
Priority to PCT/GB1993/000844 priority patent/WO1993022754A1/en
Publication of GB2266643A publication Critical patent/GB2266643A/en
Application granted granted Critical
Publication of GB2266643B publication Critical patent/GB2266643B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0227—System arrangements with a plurality of child units
    • 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
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
GB9216101A 1992-05-01 1992-07-29 Tracking system Expired - Fee Related GB2266643B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP93911860A EP0638192A1 (en) 1992-05-01 1993-04-22 Tracking system
AU51562/93A AU5156293A (en) 1992-05-01 1993-04-22 Tracking system
PCT/GB1993/000844 WO1993022754A1 (en) 1992-05-01 1993-04-22 Tracking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929209436A GB9209436D0 (en) 1992-05-01 1992-05-01 Tracking systems

Publications (3)

Publication Number Publication Date
GB9216101D0 true GB9216101D0 (en) 1992-09-09
GB2266643A GB2266643A (en) 1993-11-03
GB2266643B GB2266643B (en) 1996-03-13

Family

ID=10714848

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929209436A Pending GB9209436D0 (en) 1992-05-01 1992-05-01 Tracking systems
GB9216101A Expired - Fee Related GB2266643B (en) 1992-05-01 1992-07-29 Tracking system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929209436A Pending GB9209436D0 (en) 1992-05-01 1992-05-01 Tracking systems

Country Status (1)

Country Link
GB (2) GB9209436D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598144A (en) * 1994-12-30 1997-01-28 Actodyne General, Inc. Anti-theft vehicle system
US5831530A (en) * 1994-12-30 1998-11-03 Lace Effect, Llc Anti-theft vehicle system
WO1998034819A1 (en) 1997-02-07 1998-08-13 Lace Effect, Llc. Anti-theft vehicle system
US6945366B2 (en) 2002-08-16 2005-09-20 Gatekeeper Systems, Llc. Anti-theft vehicle system
CA2891641C (en) 2005-03-18 2018-01-02 Gatekeeper Systems, Inc. Navigation systems and methods for wheeled objects
US9969216B2 (en) * 2015-08-21 2018-05-15 Tome, Inc. Intelligent caster system with occupancy detection and optional solar panel for use with a furniture component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363020A (en) * 1980-12-22 1982-12-07 Borg-Warner Corporation Interrogating system for remotely monitoring tire air pressure
US4609905A (en) * 1984-05-11 1986-09-02 Eaton Corporation Tire condition monitoring system
CA2043127C (en) * 1991-05-23 1996-05-07 Martin Handforth Wireless communication zone management system

Also Published As

Publication number Publication date
GB9209436D0 (en) 1992-06-17
GB2266643B (en) 1996-03-13
GB2266643A (en) 1993-11-03

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Legal Events

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

Effective date: 19990729