FR440768A - Improvements to submarine signal transmission devices - Google Patents

Improvements to submarine signal transmission devices

Info

Publication number
FR440768A
FR440768A FR440768DA FR440768A FR 440768 A FR440768 A FR 440768A FR 440768D A FR440768D A FR 440768DA FR 440768 A FR440768 A FR 440768A
Authority
FR
France
Prior art keywords
signal transmission
transmission devices
submarine signal
submarine
devices
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR440768A publication Critical patent/FR440768A/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)
FR440768D 1912-02-29 1912-02-29 Improvements to submarine signal transmission devices Expired FR440768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR440768T 1912-02-29

Publications (1)

Publication Number Publication Date
FR440768A true FR440768A (en) 1912-07-20

Family

ID=1482090

Family Applications (1)

Application Number Title Priority Date Filing Date
FR440768D Expired FR440768A (en) 1912-02-29 1912-02-29 Improvements to submarine signal transmission devices

Country Status (1)

Country Link
FR (1) FR440768A (en)

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