FR444805A - Improvements to acoustic receivers for ships and others - Google Patents

Improvements to acoustic receivers for ships and others

Info

Publication number
FR444805A
FR444805A FR444805DA FR444805A FR 444805 A FR444805 A FR 444805A FR 444805D A FR444805D A FR 444805DA FR 444805 A FR444805 A FR 444805A
Authority
FR
France
Prior art keywords
ships
acoustic receivers
receivers
acoustic
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
Aurel Meckel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR444805A publication Critical patent/FR444805A/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)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
FR444805D 1911-06-10 1912-06-10 Improvements to acoustic receivers for ships and others Expired FR444805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE256747T 1911-06-10

Publications (1)

Publication Number Publication Date
FR444805A true FR444805A (en) 1912-10-26

Family

ID=32604293

Family Applications (1)

Application Number Title Priority Date Filing Date
FR444805D Expired FR444805A (en) 1911-06-10 1912-06-10 Improvements to acoustic receivers for ships and others

Country Status (3)

Country Link
DE (3) DE256747C (en)
FR (1) FR444805A (en)
GB (1) GB191213615A (en)

Also Published As

Publication number Publication date
GB191213615A (en) 1913-06-10
DE256747C (en)
DE257211C (en)
DE257212C (en)

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