FR825438A - Perfectionnements aux radiophares - Google Patents

Perfectionnements aux radiophares

Info

Publication number
FR825438A
FR825438A FR825438DA FR825438A FR 825438 A FR825438 A FR 825438A FR 825438D A FR825438D A FR 825438DA FR 825438 A FR825438 A FR 825438A
Authority
FR
France
Prior art keywords
radiobeacons
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR825438A publication Critical patent/FR825438A/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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • 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)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Aerials With Secondary Devices (AREA)
FR825438D 1936-08-15 1937-08-10 Perfectionnements aux radiophares Expired FR825438A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2212110X 1936-08-15

Publications (1)

Publication Number Publication Date
FR825438A true FR825438A (fr) 1938-03-03

Family

ID=7990336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825438D Expired FR825438A (fr) 1936-08-15 1937-08-10 Perfectionnements aux radiophares

Country Status (2)

Country Link
US (1) US2212110A (fr)
FR (1) FR825438A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432984A (en) * 1940-04-05 1947-12-23 Bell Telephone Labor Inc Electromagnetic wave reflection system
US2461005A (en) * 1940-04-05 1949-02-08 Bell Telephone Labor Inc Ultra high frequency transmission
US2520008A (en) * 1940-04-05 1950-08-22 Bell Telephone Labor Inc Radio marker system

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2589249A (en) * 1941-03-07 1952-03-18 Int Standard Electric Corp Direction and distance finding equipment
US2444031A (en) * 1941-03-08 1948-06-29 Int Standard Electric Corp Electromagnetic wave obstacle detection system
US2453970A (en) * 1941-05-31 1948-11-16 Rca Corp Recognition system for pulse echo radio locators
BE481269A (fr) * 1942-03-23
US3311912A (en) * 1942-12-11 1967-03-28 Verne R Philpott Radar recognition system
US2568265A (en) * 1943-03-18 1951-09-18 Luis W Alvarez Radio beacon and system utilizing it
US2502974A (en) * 1943-05-14 1950-04-04 Us Sec War Blind landing system
US3153236A (en) * 1943-06-23 1964-10-13 Rines Robert Harvey System and method for detection
US2537102A (en) * 1944-07-26 1951-01-09 Stokes Irving Radio system for identifying friendly aircraft and the like
US2463474A (en) * 1945-03-05 1949-03-01 Standard Telephones Cables Ltd Air navigation system
US2472212A (en) * 1945-07-09 1949-06-07 Emmett L Hudspeth Method of locating beacons
US2461181A (en) * 1945-08-08 1949-02-08 Rosenberg Paul Reflecting device
US2481509A (en) * 1945-09-05 1949-09-13 Paul G Hansel Directional system
US2769902A (en) * 1945-10-11 1956-11-06 Irving H Page Receiver for pulse signaling system
US2490050A (en) * 1945-11-07 1949-12-06 Paul G Hansel Navigation system
US2703881A (en) * 1945-12-10 1955-03-08 Robert J Bergemann Simulated signal source
US2807798A (en) * 1945-12-18 1957-09-24 Frank G Dunnington Frequency indicator
US2917739A (en) * 1946-01-15 1959-12-15 Halpern Otto Corner reflector
US2918671A (en) * 1946-01-15 1959-12-22 Halpern Otto Identifying reflector with reflection dissymmetry
US2543130A (en) * 1946-07-03 1951-02-27 Bell Telephone Labor Inc Reflecting system
US2580921A (en) * 1947-10-01 1952-01-01 Rca Corp Radio reflector
US2697828A (en) * 1949-12-29 1954-12-21 Standard Oil Dev Co Reflector for electromagnetic waves
US3141635A (en) * 1953-02-16 1964-07-21 Marion F Davis Missile guidance system
US2927321A (en) * 1956-01-26 1960-03-01 Donald B Harris Radio transmission systems with modulatable passive responder
US3016532A (en) * 1957-02-25 1962-01-09 Del Mar Eng Lab Tow target
US3019430A (en) * 1957-06-04 1962-01-30 Research Corp Distance-measuring apparatus and method
US3172106A (en) * 1960-12-22 1965-03-02 Gen Precision Inc Semi-passive beacon
US3357014A (en) * 1965-11-29 1967-12-05 Atlas David Standard target radar
NO333526B1 (no) * 2003-06-12 2013-07-01 Vestas Wind Sys As System for å avverge kollisjon mellom luftfartøy og et hinder
DE102007027648A1 (de) * 2007-06-15 2008-12-18 Robert Bosch Gmbh Lokalisierungssystem für ein Roboterfahrzeug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432984A (en) * 1940-04-05 1947-12-23 Bell Telephone Labor Inc Electromagnetic wave reflection system
US2461005A (en) * 1940-04-05 1949-02-08 Bell Telephone Labor Inc Ultra high frequency transmission
US2520008A (en) * 1940-04-05 1950-08-22 Bell Telephone Labor Inc Radio marker system

Also Published As

Publication number Publication date
US2212110A (en) 1940-08-20

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