GB581602A - Improvements in or relating to wireless signalling systems - Google Patents

Improvements in or relating to wireless signalling systems

Info

Publication number
GB581602A
GB581602A GB1828742A GB1828742A GB581602A GB 581602 A GB581602 A GB 581602A GB 1828742 A GB1828742 A GB 1828742A GB 1828742 A GB1828742 A GB 1828742A GB 581602 A GB581602 A GB 581602A
Authority
GB
United Kingdom
Prior art keywords
pulses
frequency
time
main
unit
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
GB1828742A
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.)
Individual
Original Assignee
Individual
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 to FR958127D priority Critical patent/FR958127A/fr
Priority to BE478971D priority patent/BE478971A/xx
Priority to NL77666D priority patent/NL77666C/xx
Priority to NL138127D priority patent/NL138127B/xx
Application filed by Individual filed Critical Individual
Priority to GB1828742A priority patent/GB581602A/en
Priority to US527017A priority patent/US2800652A/en
Publication of GB581602A publication Critical patent/GB581602A/en
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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB1828742A 1942-12-23 1942-12-23 Improvements in or relating to wireless signalling systems Expired GB581602A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR958127D FR958127A (enEXAMPLES) 1942-12-23
BE478971D BE478971A (enEXAMPLES) 1942-12-23
NL77666D NL77666C (enEXAMPLES) 1942-12-23
NL138127D NL138127B (enEXAMPLES) 1942-12-23
GB1828742A GB581602A (en) 1942-12-23 1942-12-23 Improvements in or relating to wireless signalling systems
US527017A US2800652A (en) 1942-12-23 1944-03-17 Wireless signalling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1828742A GB581602A (en) 1942-12-23 1942-12-23 Improvements in or relating to wireless signalling systems

Publications (1)

Publication Number Publication Date
GB581602A true GB581602A (en) 1946-10-18

Family

ID=10109866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1828742A Expired GB581602A (en) 1942-12-23 1942-12-23 Improvements in or relating to wireless signalling systems

Country Status (4)

Country Link
BE (1) BE478971A (enEXAMPLES)
FR (1) FR958127A (enEXAMPLES)
GB (1) GB581602A (enEXAMPLES)
NL (2) NL138127B (enEXAMPLES)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513322A (en) * 1948-11-27 1950-07-04 Seismograph Service Corp Radio location system
US2578980A (en) * 1946-03-07 1951-12-18 Decca Record Co Ltd Radio-frequency navigation system
US2689346A (en) * 1945-06-13 1954-09-14 Us Navy Long range navigation system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689346A (en) * 1945-06-13 1954-09-14 Us Navy Long range navigation system
US2578980A (en) * 1946-03-07 1951-12-18 Decca Record Co Ltd Radio-frequency navigation system
US2513322A (en) * 1948-11-27 1950-07-04 Seismograph Service Corp Radio location system

Also Published As

Publication number Publication date
NL138127B (enEXAMPLES)
BE478971A (enEXAMPLES)
FR958127A (enEXAMPLES) 1950-03-03
NL77666C (enEXAMPLES)

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