FR24794E - Apparatus for discovering the approach and locating the direction of an underwater or aerial sound source - Google Patents

Apparatus for discovering the approach and locating the direction of an underwater or aerial sound source

Info

Publication number
FR24794E
FR24794E FR24794A FR24794DA FR24794E FR 24794 E FR24794 E FR 24794E FR 24794 A FR24794 A FR 24794A FR 24794D A FR24794D A FR 24794DA FR 24794 E FR24794 E FR 24794E
Authority
FR
France
Prior art keywords
discovering
underwater
locating
approach
sound source
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
FR24794A
Other languages
French (fr)
Inventor
Pierre Le Goaziou
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.)
PIERRE LE GOAZIOU
Original Assignee
PIERRE LE GOAZIOU
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 PIERRE LE GOAZIOU filed Critical PIERRE LE GOAZIOU
Application granted granted Critical
Publication of FR24794E publication Critical patent/FR24794E/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
    • G01S1/72—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 ultrasonic, sonic or infrasonic 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)
FR24794A 1921-04-29 1921-04-29 Apparatus for discovering the approach and locating the direction of an underwater or aerial sound source Expired FR24794E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR24794T 1921-04-29

Publications (1)

Publication Number Publication Date
FR24794E true FR24794E (en) 1922-10-14

Family

ID=8663369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR24794A Expired FR24794E (en) 1921-04-29 1921-04-29 Apparatus for discovering the approach and locating the direction of an underwater or aerial sound source

Country Status (1)

Country Link
FR (1) FR24794E (en)

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