GB2477917B - Proximity sensors - Google Patents

Proximity sensors

Info

Publication number
GB2477917B
GB2477917B GB1002476.8A GB201002476A GB2477917B GB 2477917 B GB2477917 B GB 2477917B GB 201002476 A GB201002476 A GB 201002476A GB 2477917 B GB2477917 B GB 2477917B
Authority
GB
United Kingdom
Prior art keywords
proximity sensors
proximity
sensors
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 - Fee Related
Application number
GB1002476.8A
Other versions
GB2477917A (en
GB201002476D0 (en
Inventor
John Anderson
Aled Hughes
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.)
Guidance IP Ltd
Original Assignee
Guidance IP 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 Guidance IP Ltd filed Critical Guidance IP Ltd
Priority to GB1002476.8A priority Critical patent/GB2477917B/en
Publication of GB201002476D0 publication Critical patent/GB201002476D0/en
Priority to ES10008747T priority patent/ES2859780T3/en
Priority to PT100087477T priority patent/PT2290391T/en
Priority to EP10008747.7A priority patent/EP2290391B1/en
Priority to NZ587538A priority patent/NZ587538A/en
Priority to US12/862,761 priority patent/US8629771B2/en
Priority to AU2010214710A priority patent/AU2010214710B2/en
Priority to IL207866A priority patent/IL207866A0/en
Publication of GB2477917A publication Critical patent/GB2477917A/en
Application granted granted Critical
Publication of GB2477917B publication Critical patent/GB2477917B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/20—Integrity monitoring, fault detection or fault isolation of space segment
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • 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
    • 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
    • G08B21/0275—Electronic Article Surveillance [EAS] tag technology used for parent or child unit, e.g. same transmission technology, magnetic tag, RF tag, RFID
    • 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
    • G08B21/0286—Tampering or removal detection of the child unit from child or article

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)
GB1002476.8A 2009-09-01 2010-02-15 Proximity sensors Expired - Fee Related GB2477917B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB1002476.8A GB2477917B (en) 2010-02-15 2010-02-15 Proximity sensors
ES10008747T ES2859780T3 (en) 2009-09-01 2010-08-23 Proximity sensors
PT100087477T PT2290391T (en) 2009-09-01 2010-08-23 Proximity sensors
EP10008747.7A EP2290391B1 (en) 2009-09-01 2010-08-23 Proximity sensors
NZ587538A NZ587538A (en) 2009-09-01 2010-08-24 Proximity sensor for a transmitter or receiver to detect blocking of a signal
US12/862,761 US8629771B2 (en) 2009-09-01 2010-08-25 Proximity sensors
AU2010214710A AU2010214710B2 (en) 2009-09-01 2010-08-30 Proximity sensors
IL207866A IL207866A0 (en) 2009-09-01 2010-08-30 Proximity sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1002476.8A GB2477917B (en) 2010-02-15 2010-02-15 Proximity sensors

Publications (3)

Publication Number Publication Date
GB201002476D0 GB201002476D0 (en) 2010-03-31
GB2477917A GB2477917A (en) 2011-08-24
GB2477917B true GB2477917B (en) 2012-02-22

Family

ID=42110688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1002476.8A Expired - Fee Related GB2477917B (en) 2009-09-01 2010-02-15 Proximity sensors

Country Status (1)

Country Link
GB (1) GB2477917B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2588371A (en) * 2019-09-30 2021-04-28 G4S Monitoring Tech Limited Electronic tag

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959533A (en) * 1997-05-27 1999-09-28 Pro Tech Monitoring, Inc. Tamper detection for body worn transmitter
US20090160708A1 (en) * 2006-01-25 2009-06-25 Fujitsu Ten Limited Radar apparatus and interference detection method
GB2473067A (en) * 2009-09-01 2011-03-02 Guidance Monitoring Ltd Proximity sensor for detecting an attempt to disable a monitoring tag or portable GPS tracking device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959533A (en) * 1997-05-27 1999-09-28 Pro Tech Monitoring, Inc. Tamper detection for body worn transmitter
US20090160708A1 (en) * 2006-01-25 2009-06-25 Fujitsu Ten Limited Radar apparatus and interference detection method
GB2473067A (en) * 2009-09-01 2011-03-02 Guidance Monitoring Ltd Proximity sensor for detecting an attempt to disable a monitoring tag or portable GPS tracking device

Also Published As

Publication number Publication date
GB2477917A (en) 2011-08-24
GB201002476D0 (en) 2010-03-31

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20141218 AND 20141223

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20141229 AND 20141231

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180215