FR751952A - Improvements to electrical compensators for underwater signaling and listening - Google Patents

Improvements to electrical compensators for underwater signaling and listening

Info

Publication number
FR751952A
FR751952A FR751952DA FR751952A FR 751952 A FR751952 A FR 751952A FR 751952D A FR751952D A FR 751952DA FR 751952 A FR751952 A FR 751952A
Authority
FR
France
Prior art keywords
compensators
listening
electrical
underwater signaling
underwater
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 FR751952A publication Critical patent/FR751952A/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)
  • Near-Field Transmission Systems (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR751952D 1932-03-21 1933-03-02 Improvements to electrical compensators for underwater signaling and listening Expired FR751952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US600191A US2070570A (en) 1932-03-21 1932-03-21 Electrical compensator

Publications (1)

Publication Number Publication Date
FR751952A true FR751952A (en) 1933-09-13

Family

ID=24402651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR751952D Expired FR751952A (en) 1932-03-21 1933-03-02 Improvements to electrical compensators for underwater signaling and listening

Country Status (4)

Country Link
US (1) US2070570A (en)
DE (1) DE605775C (en)
FR (1) FR751952A (en)
GB (1) GB411599A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921288A (en) * 1946-03-20 1960-01-12 John P O'neill Underwater signalling
US3283269A (en) * 1962-03-12 1966-11-01 Bel Fuse Inc Tapped delay line

Also Published As

Publication number Publication date
GB411599A (en) 1934-06-14
DE605775C (en) 1934-11-28
US2070570A (en) 1937-02-16

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