FR948579A - Perfectionnements aux appareils émetteurs à fréquence radioélectrique - Google Patents

Perfectionnements aux appareils émetteurs à fréquence radioélectrique

Info

Publication number
FR948579A
FR948579A FR948579DA FR948579A FR 948579 A FR948579 A FR 948579A FR 948579D A FR948579D A FR 948579DA FR 948579 A FR948579 A FR 948579A
Authority
FR
France
Prior art keywords
radio frequency
transmitting devices
frequency transmitting
devices
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 FR948579A publication Critical patent/FR948579A/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)
  • Transmitters (AREA)
FR948579D 1945-08-27 1947-06-27 Perfectionnements aux appareils émetteurs à fréquence radioélectrique Expired FR948579A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US260892XA 1945-08-27 1945-08-27

Publications (1)

Publication Number Publication Date
FR948579A true FR948579A (fr) 1949-08-04

Family

ID=21829824

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948579D Expired FR948579A (fr) 1945-08-27 1947-06-27 Perfectionnements aux appareils émetteurs à fréquence radioélectrique

Country Status (4)

Country Link
BE (1) BE471793A (enrdf_load_stackoverflow)
CH (1) CH260892A (enrdf_load_stackoverflow)
DE (1) DE862631C (enrdf_load_stackoverflow)
FR (1) FR948579A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE546000C (de) * 1930-05-20 1932-03-08 Meint Harms Dr Verfahren einer selbsttaetigen Ortsbestimmung beweglicher Empfaenger

Also Published As

Publication number Publication date
DE862631C (de) 1953-01-12
BE471793A (enrdf_load_stackoverflow)
CH260892A (de) 1949-04-15

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