NL7217117A - - Google Patents

Info

Publication number
NL7217117A
NL7217117A NL7217117A NL7217117A NL7217117A NL 7217117 A NL7217117 A NL 7217117A NL 7217117 A NL7217117 A NL 7217117A NL 7217117 A NL7217117 A NL 7217117A NL 7217117 A NL7217117 A NL 7217117A
Authority
NL
Netherlands
Application number
NL7217117A
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 FR7145492A external-priority patent/FR2169707B1/fr
Priority claimed from FR7227058A external-priority patent/FR2193981B2/fr
Priority claimed from FR7227059A external-priority patent/FR2193982B2/fr
Application filed filed Critical
Publication of NL7217117A publication Critical patent/NL7217117A/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08Systems for determining direction or position line
    • G01S1/20Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
    • G01S1/30Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radio Relay Systems (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Superheterodyne Receivers (AREA)
NL7217117A 1971-12-17 1972-12-15 NL7217117A (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7145492A FR2169707B1 (da) 1971-12-17 1971-12-17
FR7227058A FR2193981B2 (da) 1971-12-17 1972-07-27
FR7227059A FR2193982B2 (da) 1971-12-17 1972-07-27

Publications (1)

Publication Number Publication Date
NL7217117A true NL7217117A (da) 1973-06-19

Family

ID=27249728

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7217117A NL7217117A (da) 1971-12-17 1972-12-15

Country Status (21)

Country Link
US (1) US3983559A (da)
JP (1) JPS528155B2 (da)
AR (1) AR203368A1 (da)
BE (1) BE792781A (da)
CA (1) CA1011439A (da)
CH (1) CH574610A5 (da)
DD (1) DD107345A5 (da)
DE (1) DE2261555C2 (da)
ES (1) ES409994A1 (da)
GB (1) GB1420440A (da)
IE (1) IE37516B1 (da)
IL (1) IL41095A (da)
IT (1) IT976068B (da)
LU (1) LU66677A1 (da)
MC (1) MC973A1 (da)
NL (1) NL7217117A (da)
NO (1) NO139937C (da)
OA (1) OA04235A (da)
PL (1) PL93282B1 (da)
SE (1) SE395549B (da)
YU (1) YU314472A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119271A (en) * 1981-01-17 1982-07-24 Fujitsu Ltd Decca receiving device
CA1274876A (en) * 1986-10-15 1990-10-02 Myles Mcmillan Apparatus for measuring the frequency of microwave signals
JPH11281725A (ja) * 1998-03-26 1999-10-15 Nec Corp 多重伝搬波パラメータ計測方法及び装置並びにプログラムを記録した機械読み取り可能な記録媒体
US6700535B2 (en) * 2001-06-01 2004-03-02 Texas Instruments Incorporated Location estimation in narrow bandwidth wireless communication systems
GB2445595A (en) * 2007-01-08 2008-07-16 Turftrax Racing Data Ltd Location system
CN109891308B (zh) * 2016-10-03 2022-08-23 凸版印刷株式会社 调光片材以及图像拍摄系统
CN113281700B (zh) * 2021-04-20 2023-10-31 宜宾学院 一种无线电磁定位系统及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086733A (en) * 1964-07-31 1967-10-11 Decca Ltd Improvements in or relating to phase comparison radio navigation systems
US3774215A (en) * 1970-11-23 1973-11-20 Gen Systems Dev Corp Position locating system

Also Published As

Publication number Publication date
IL41095A0 (en) 1973-03-30
CA1011439A (fr) 1977-05-31
NO139937B (no) 1979-02-26
DE2261555C2 (de) 1984-02-16
JPS528155B2 (da) 1977-03-07
DD107345A5 (da) 1974-07-20
PL93282B1 (da) 1977-05-30
YU314472A (en) 1982-02-25
IE37516B1 (en) 1977-08-17
LU66677A1 (da) 1974-07-10
AR203368A1 (es) 1975-09-08
CH574610A5 (da) 1976-04-15
OA04235A (fr) 1979-12-31
AU5005372A (en) 1974-06-20
ES409994A1 (es) 1976-04-16
JPS4869489A (da) 1973-09-20
MC973A1 (fr) 1974-02-01
US3983559A (en) 1976-09-28
SE395549B (sv) 1977-08-15
NO139937C (no) 1979-06-06
BE792781A (fr) 1973-06-15
IE37516L (en) 1973-06-17
IL41095A (en) 1975-12-31
DE2261555A1 (de) 1973-06-28
GB1420440A (en) 1976-01-07
IT976068B (it) 1974-08-20

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
CNR Transfer of rights (patent application after its laying open for public inspection)

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BV The patent application has lapsed