FR501550A - 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
FR501550A
FR501550A FR501550A FR501550DA FR501550A FR 501550 A FR501550 A FR 501550A FR 501550 A FR501550 A FR 501550A FR 501550D A FR501550D A FR 501550DA FR 501550 A FR501550 A FR 501550A
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
FR501550A
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 FR501550A publication Critical patent/FR501550A/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)
FR501550A 1916-02-22 1916-02-22 Apparatus for discovering the approach and locating the direction of an underwater or aerial sound source Expired FR501550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR501550T 1916-02-22

Publications (1)

Publication Number Publication Date
FR501550A true FR501550A (en) 1920-04-16

Family

ID=8905787

Family Applications (1)

Application Number Title Priority Date Filing Date
FR501550A Expired FR501550A (en) 1916-02-22 1916-02-22 Apparatus for discovering the approach and locating the direction of an underwater or aerial sound source

Country Status (1)

Country Link
FR (1) FR501550A (en)

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