FR683003A - Improvements in the methods of locating an alignment by radio waves - Google Patents

Improvements in the methods of locating an alignment by radio waves

Info

Publication number
FR683003A
FR683003A FR683003DA FR683003A FR 683003 A FR683003 A FR 683003A FR 683003D A FR683003D A FR 683003DA FR 683003 A FR683003 A FR 683003A
Authority
FR
France
Prior art keywords
locating
alignment
methods
radio waves
waves
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
French (fr)
Inventor
Andre Blondel
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 filed Critical
Application granted granted Critical
Publication of FR683003A publication Critical patent/FR683003A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR683003D 1929-01-21 1929-01-21 Improvements in the methods of locating an alignment by radio waves Expired FR683003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR683003T 1929-01-21

Publications (1)

Publication Number Publication Date
FR683003A true FR683003A (en) 1930-06-05

Family

ID=9023638

Family Applications (1)

Application Number Title Priority Date Filing Date
FR683003D Expired FR683003A (en) 1929-01-21 1929-01-21 Improvements in the methods of locating an alignment by radio waves

Country Status (1)

Country Link
FR (1) FR683003A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755783C (en) * 1934-01-27 1953-04-16 Marconi Wireless Telegraph Co Antenna arrangement for defining a landing line for aircraft
DE754630C (en) * 1934-01-27 1953-06-08 Marconi Wireless Telegraph Co Device for the alternating release and blocking of energy transmission on a high-frequency line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755783C (en) * 1934-01-27 1953-04-16 Marconi Wireless Telegraph Co Antenna arrangement for defining a landing line for aircraft
DE754630C (en) * 1934-01-27 1953-06-08 Marconi Wireless Telegraph Co Device for the alternating release and blocking of energy transmission on a high-frequency line

Similar Documents

Publication Publication Date Title
FR717872A (en) Acoustic pavilion for diffusers
FR683003A (en) Improvements in the methods of locating an alignment by radio waves
FR683719A (en) Adjustable school bench
FR704953A (en) Wave projector
FR714356A (en) Cello bag
FR711876A (en) Instrument for measuring angles
DK54507C (en) Apparatus for Receiving and Determining Direction of Sound Waves.
FR692556A (en) Improvements to antennas for electro-magnetic waves
FR712794A (en) Device for presenting sound films
ES116716A1 (en) Improvements in the methods of transmitting signals that simulate the conversation by high frequency transport waves.
FR644881A (en) Super-reaction receiver device for radiotelephony
FR722282A (en) Improvements to radiophonic antenna systems for directed waves
SU21457A1 (en) Apparatus for dividing angles into three equal parts
FR691623A (en) Wristwatch improvements
FR682440A (en) Perfected marquise
FR815810A (en) Secret radio beacon on very short waves
FR695644A (en) Improvements to radio wave receiving devices
FR704207A (en) Advanced portable phonograph
FR38929E (en) Musical instruments by electromagnetic waves
FR716324A (en) Improvements to radio wave receiving stations
DK44635C (en) Sound reproducing apparatus.
FR688317A (en) Method for determining distances using sound waves
FR711947A (en) Advanced sound film
DK54468C (en) Apparatus for Receiving Sound Waves.
FR688340A (en) Advanced navigation devices