FR38789E - Improvements in altitude measurement methods and devices - Google Patents

Improvements in altitude measurement methods and devices

Info

Publication number
FR38789E
FR38789E FR38789DA FR38789E FR 38789 E FR38789 E FR 38789E FR 38789D A FR38789D A FR 38789DA FR 38789 E FR38789 E FR 38789E
Authority
FR
France
Prior art keywords
devices
measurement methods
altitude measurement
altitude
methods
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR38789E publication Critical patent/FR38789E/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)
FR38789D 1930-07-09 1930-07-09 Improvements in altitude measurement methods and devices Expired FR38789E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR38789T 1930-07-09

Publications (1)

Publication Number Publication Date
FR38789E true FR38789E (en) 1931-07-18

Family

ID=8675252

Family Applications (1)

Application Number Title Priority Date Filing Date
FR38789D Expired FR38789E (en) 1930-07-09 1930-07-09 Improvements in altitude measurement methods and devices

Country Status (1)

Country Link
FR (1) FR38789E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994229A (en) * 1957-09-17 1976-11-30 The United States Of America As Represented By The Secretary Of The Navy Pulse doppler proximity fuze
US4214241A (en) * 1944-03-11 1980-07-22 Tellier Joseph C Proximity control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214241A (en) * 1944-03-11 1980-07-22 Tellier Joseph C Proximity control system
US3994229A (en) * 1957-09-17 1976-11-30 The United States Of America As Represented By The Secretary Of The Navy Pulse doppler proximity fuze

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