FR949253A - Perfectionnements aux systèmes de radio-phares - Google Patents

Perfectionnements aux systèmes de radio-phares

Info

Publication number
FR949253A
FR949253A FR949253DA FR949253A FR 949253 A FR949253 A FR 949253A FR 949253D A FR949253D A FR 949253DA FR 949253 A FR949253 A FR 949253A
Authority
FR
France
Prior art keywords
radio
headlight systems
headlight
systems
radio headlight
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 FR949253A publication Critical patent/FR949253A/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

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)
FR949253D 1945-08-27 1947-07-09 Perfectionnements aux systèmes de radio-phares Expired FR949253A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US613000A US2504573A (en) 1945-08-27 1945-08-27 Radio beacon receiver

Publications (1)

Publication Number Publication Date
FR949253A true FR949253A (fr) 1949-08-25

Family

ID=24455470

Family Applications (1)

Application Number Title Priority Date Filing Date
FR949253D Expired FR949253A (fr) 1945-08-27 1947-07-09 Perfectionnements aux systèmes de radio-phares

Country Status (3)

Country Link
US (1) US2504573A (fr)
FR (1) FR949253A (fr)
GB (1) GB626870A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871473A (en) * 1956-01-03 1959-01-27 Seismograph Service Corp Radio location system
US3289206A (en) * 1963-12-09 1966-11-29 Hazeltine Research Inc Phase-comparison navigation system utilizing spiral phase contours

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206637A (en) * 1937-08-14 1940-07-02 Rca Corp Direction indicating radio receiver
US2282030A (en) * 1937-09-17 1942-05-05 Int Standard Electric Corp System of guiding vehicles
US2223547A (en) * 1938-11-30 1940-12-03 Rca Corp Receiving system
US2256619A (en) * 1940-06-01 1941-09-23 Rca Corp Directional antenna
US2361953A (en) * 1941-07-10 1944-11-07 Jr Eugene F Mcdonald Radio receiver
US2408773A (en) * 1942-03-31 1946-10-08 Bell Telephone Labor Inc Position determining system

Also Published As

Publication number Publication date
US2504573A (en) 1950-04-18
GB626870A (en) 1949-07-22

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