FR925541A - Perfectionnements aux émetteurs radioélectriques - Google Patents

Perfectionnements aux émetteurs radioélectriques

Info

Publication number
FR925541A
FR925541A FR925541DA FR925541A FR 925541 A FR925541 A FR 925541A FR 925541D A FR925541D A FR 925541DA FR 925541 A FR925541 A FR 925541A
Authority
FR
France
Prior art keywords
radio transmitters
transmitters
radio
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)
French (fr)
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 FR925541A publication Critical patent/FR925541A/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
    • G01S1/30—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 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR925541D 1942-04-13 1946-04-12 Perfectionnements aux émetteurs radioélectriques Expired FR925541A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US579170XA 1942-04-13 1942-04-13

Publications (1)

Publication Number Publication Date
FR925541A true FR925541A (fr) 1947-09-05

Family

ID=22013532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR925541D Expired FR925541A (fr) 1942-04-13 1946-04-12 Perfectionnements aux émetteurs radioélectriques

Country Status (4)

Country Link
BE (1) BE466299A (xx)
CH (1) CH254567A (xx)
FR (1) FR925541A (xx)
GB (1) GB579170A (xx)

Also Published As

Publication number Publication date
CH254567A (de) 1948-05-15
GB579170A (en) 1946-07-25
BE466299A (xx)

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