AU3245271A - Improvements in or relating to vehicle location systems - Google Patents

Improvements in or relating to vehicle location systems

Info

Publication number
AU3245271A
AU3245271A AU32452/71A AU3245271A AU3245271A AU 3245271 A AU3245271 A AU 3245271A AU 32452/71 A AU32452/71 A AU 32452/71A AU 3245271 A AU3245271 A AU 3245271A AU 3245271 A AU3245271 A AU 3245271A
Authority
AU
Australia
Prior art keywords
relating
vehicle location
location systems
systems
vehicle
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
AU32452/71A
Inventor
Arthur Tyler Ronald
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.)
Amalgamated Wireless Australasia Ltd
Original Assignee
AWA 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 AWA Ltd filed Critical AWA Ltd
Publication of AU3245271A publication Critical patent/AU3245271A/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
    • G01S13/751—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 wherein the responder or reflector radiates a coded signal
    • G01S13/753—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 wherein the responder or reflector radiates a coded signal using frequency selective elements, e.g. resonator
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
AU32452/71A 1970-09-04 1971-08-17 Improvements in or relating to vehicle location systems Expired AU3245271A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB423747 1970-09-04
GB4237470 1970-09-04

Publications (1)

Publication Number Publication Date
AU3245271A true AU3245271A (en) 1973-02-22

Family

ID=10424145

Family Applications (1)

Application Number Title Priority Date Filing Date
AU32452/71A Expired AU3245271A (en) 1970-09-04 1971-08-17 Improvements in or relating to vehicle location systems

Country Status (3)

Country Link
AU (1) AU3245271A (en)
CA (1) CA948730A (en)
GB (1) GB1296410A (en)

Also Published As

Publication number Publication date
CA948730A (en) 1974-06-04
GB1296410A (en) 1972-11-15

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