FR948715A - Perfectionnements aux systèmes de signalisation radio-électriques dirigés - Google Patents

Perfectionnements aux systèmes de signalisation radio-électriques dirigés

Info

Publication number
FR948715A
FR948715A FR948715DA FR948715A FR 948715 A FR948715 A FR 948715A FR 948715D A FR948715D A FR 948715DA FR 948715 A FR948715 A FR 948715A
Authority
FR
France
Prior art keywords
signaling systems
electric signaling
directed radio
radio
directed
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
Other languages
English (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.)
Decca Record Co Ltd
Original Assignee
Decca Record Co 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 Decca Record Co Ltd filed Critical Decca Record Co Ltd
Application granted granted Critical
Publication of FR948715A publication Critical patent/FR948715A/fr
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
    • G01S1/00—Beacons 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
    • G01S1/02—Beacons 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/20—Systems 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
    • G01S1/24—Systems 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 pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
FR948715D 1946-02-06 1947-07-02 Perfectionnements aux systèmes de signalisation radio-électriques dirigés Expired FR948715A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3723/46A GB620487A (en) 1946-02-06 1946-02-06 Improvements in or relating to radio navigation systems

Publications (1)

Publication Number Publication Date
FR948715A true FR948715A (fr) 1949-08-09

Family

ID=9763742

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948715D Expired FR948715A (fr) 1946-02-06 1947-07-02 Perfectionnements aux systèmes de signalisation radio-électriques dirigés

Country Status (3)

Country Link
US (1) US2531919A (fr)
FR (1) FR948715A (fr)
GB (1) GB620487A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671897A (en) * 1945-07-03 1954-03-09 Roger B Woodbury Automatically synchronized long range navigation pulse transmitter
US2768374A (en) * 1953-06-01 1956-10-23 Exxon Research Engineering Co Radio frequency surveying system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1615712A (en) * 1924-03-07 1927-01-25 Soc Ind Des Procedes Loth System of navigation and plant for carrying it out
DE546000C (de) * 1930-05-20 1932-03-08 Meint Harms Dr Verfahren einer selbsttaetigen Ortsbestimmung beweglicher Empfaenger
US2144203A (en) * 1937-09-23 1939-01-17 John P Shanklin Method for direct indication of position in a given area
BE441446A (fr) * 1939-05-30
US2405238A (en) * 1940-04-13 1946-08-06 Rca Corp Position determining system
NL80104C (fr) * 1941-06-28
US2406970A (en) * 1941-11-29 1946-09-03 Rca Corp Radio pulse indicator
BE474927A (fr) * 1941-11-29
US2403600A (en) * 1941-11-29 1946-07-09 Rca Corp Receiver for pulse position indicating systems
US2408773A (en) * 1942-03-31 1946-10-08 Bell Telephone Labor Inc Position determining system
US2419525A (en) * 1942-10-08 1947-04-29 Standard Telephones Cables Ltd Radio beacon
US2433283A (en) * 1942-11-02 1947-12-23 Rca Corp Radio position finding
US2422386A (en) * 1943-11-22 1947-06-17 Rca Corp Frequency measurement
US2428966A (en) * 1944-05-08 1947-10-14 Edward G Gage Unifrequency radio beacon system

Also Published As

Publication number Publication date
US2531919A (en) 1950-11-28
GB620487A (en) 1949-03-25

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