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
  • G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
  • G01S1/46—Broad-beam systems producing at a receiver a substantially continuous sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon, e.g. cardioid system
  • G01S1/50—Broad-beam systems producing at a receiver a substantially continuous sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon, e.g. cardioid system wherein the phase angle of the direction-dependent envelope signal is compared with a non-direction-dependent reference signal, e.g. VOR

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)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19781386

Family Applications (2)

Family Applications After (1)

Country Status (7)

Family Cites Families (6)

• 0
  • NL NL63179D patent/NL63179C/xx active
  • NO NO79258D patent/NO79258A/no unknown
  • NL NL115101D patent/NL115101B/xx unknown
  • NL NL68562D patent/NL68562C/xx active
  • NL NL115136D patent/NL115136B/xx unknown
  • BE BE462328D patent/BE462328A/xx unknown
  • BE BE462690D patent/BE462690A/xx unknown
• 1945
  • 1945-12-21 CH CH257762D patent/CH257762A/de unknown
• 1946
  • 1946-01-22 CH CH262175D patent/CH262175A/de unknown
  • 1946-01-29 FR FR54666D patent/FR54666E/fr not_active Expired
• 1947
  • 1947-02-03 GB GB3205/47A patent/GB642181A/en not_active Expired
  • 1947-02-07 GB GB3674/47A patent/GB642183A/en not_active Expired
  • 1947-02-11 US US727766A patent/US2596537A/en not_active Expired - Lifetime

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