GB2215933B - Position determining equipment - Google Patents

Position determining equipment

Info

Publication number
GB2215933B
GB2215933B GB8807620A GB8807620A GB2215933B GB 2215933 B GB2215933 B GB 2215933B GB 8807620 A GB8807620 A GB 8807620A GB 8807620 A GB8807620 A GB 8807620A GB 2215933 B GB2215933 B GB 2215933B
Authority
GB
United Kingdom
Prior art keywords
position determining
determining equipment
equipment
determining
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
GB8807620A
Other versions
GB2215933A (en
GB8807620D0 (en
Inventor
Ian James Forster
Patrick John Marriott
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.)
General Electric Co PLC
GE Power Conversion Brazil Holdings Ltd
Original Assignee
General Electric Co PLC
GEC Electrical Projects 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 General Electric Co PLC, GEC Electrical Projects Ltd filed Critical General Electric Co PLC
Publication of GB8807620D0 publication Critical patent/GB8807620D0/en
Priority to AU31442/89A priority Critical patent/AU3144289A/en
Priority to EP19890302642 priority patent/EP0333495A3/en
Publication of GB2215933A publication Critical patent/GB2215933A/en
Application granted granted Critical
Publication of GB2215933B publication Critical patent/GB2215933B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
GB8807620A 1988-03-18 1988-03-30 Position determining equipment Expired - Fee Related GB2215933B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU31442/89A AU3144289A (en) 1988-03-18 1989-03-17 Position determining equipment
EP19890302642 EP0333495A3 (en) 1988-03-18 1989-03-17 Position determining equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888806455A GB8806455D0 (en) 1988-03-18 1988-03-18 Position determining equipment

Publications (3)

Publication Number Publication Date
GB8807620D0 GB8807620D0 (en) 1988-05-05
GB2215933A GB2215933A (en) 1989-09-27
GB2215933B true GB2215933B (en) 1992-07-08

Family

ID=10633666

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888806455A Pending GB8806455D0 (en) 1988-03-18 1988-03-18 Position determining equipment
GB8807620A Expired - Fee Related GB2215933B (en) 1988-03-18 1988-03-30 Position determining equipment

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888806455A Pending GB8806455D0 (en) 1988-03-18 1988-03-18 Position determining equipment

Country Status (1)

Country Link
GB (2) GB8806455D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467640B (en) * 1990-11-21 1992-08-17 Hans Loefberg ELECTRONIC SEARCH SYSTEM
US6414626B1 (en) * 1999-08-20 2002-07-02 Micron Technology, Inc. Interrogators, wireless communication systems, methods of operating an interrogator, methods of operating a wireless communication system, and methods of determining range of a remote communication device
US6396438B1 (en) 1999-09-24 2002-05-28 Slc Technologies System and method for locating radio frequency identification tags using three-phase antenna
US6693511B1 (en) 1999-09-24 2004-02-17 Ge Interlogix, Inc. System and method for communicating with dormant radio frequency identification tags
US6452504B1 (en) 1999-09-24 2002-09-17 Ge Interlogix, Inc. System and method for communication with radio frequency identification tags using tow message DFM protocol
AU1328901A (en) * 1999-09-24 2001-04-24 Interlogix, Inc. System and method for locating radio frequency identification tags using three-phase antenna
US6661335B1 (en) 1999-09-24 2003-12-09 Ge Interlogix, Inc. System and method for locating radio frequency identification tags
JP2003512218A (en) * 1999-10-01 2003-04-02 シーメンス ヴィディーオー オートモーティヴ コーポレイション Relay Attack Detection for Secure Communication of Vehicle Commands
EP1091316B1 (en) * 1999-10-02 2006-03-29 Auergesellschaft Gmbh Transponder device work safety products
FR2801998B1 (en) * 1999-12-07 2003-01-31 Dalloz Fall Prot INDIVIDUAL PROTECTION EQUIPMENT
GB2428342B (en) * 2005-07-12 2007-05-23 Robotics Ltd Const Proximity sensing
NL1029879C2 (en) * 2005-09-05 2007-03-06 Nedap Nv Method and apparatus are intended to trace household pets who have run away, to follow animals for biological research and other purposes whereby objects and persons need to be followed or traced
GB2473860A (en) * 2009-09-25 2011-03-30 Michael William Anthony Cartwright Accident mitigation system
JP7268313B2 (en) * 2018-09-11 2023-05-08 株式会社デンソー PASSIVE ENTRY DEVICE FOR VEHICLE AND DISTANCE MEASUREMENT METHOD IN PASSIVE ENTRY DEVICE FOR VEHICLE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431252A (en) * 1973-10-29 1976-04-07 Furuno Electric Co Position detecting device for an omega receiving system
GB2100951A (en) * 1981-01-08 1983-01-06 Marconi Co Ltd A navigation radar system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431252A (en) * 1973-10-29 1976-04-07 Furuno Electric Co Position detecting device for an omega receiving system
GB2100951A (en) * 1981-01-08 1983-01-06 Marconi Co Ltd A navigation radar system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Microwave Journal-April 1986 pp34-59 *

Also Published As

Publication number Publication date
GB8806455D0 (en) 1988-04-20
GB2215933A (en) 1989-09-27
GB8807620D0 (en) 1988-05-05

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060330