US2079620A - Direction finding - Google Patents

Direction finding Download PDF

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Publication number
US2079620A
US2079620A US517510A US51751031A US2079620A US 2079620 A US2079620 A US 2079620A US 517510 A US517510 A US 517510A US 51751031 A US51751031 A US 51751031A US 2079620 A US2079620 A US 2079620A
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US
United States
Prior art keywords
sound
maximum
filter
source
receivers
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 - Lifetime
Application number
US517510A
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English (en)
Inventor
Kunze Willy
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 US2079620A publication Critical patent/US2079620A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
US517510A 1930-04-30 1931-02-21 Direction finding Expired - Lifetime US2079620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2079620X 1930-04-30

Publications (1)

Publication Number Publication Date
US2079620A true US2079620A (en) 1937-05-11

Family

ID=7983917

Family Applications (1)

Application Number Title Priority Date Filing Date
US517510A Expired - Lifetime US2079620A (en) 1930-04-30 1931-02-21 Direction finding

Country Status (2)

Country Link
US (1) US2079620A (fr)
FR (1) FR714774A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893063A (en) * 1944-03-15 1975-07-01 Us Navy Detection streamer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893063A (en) * 1944-03-15 1975-07-01 Us Navy Detection streamer

Also Published As

Publication number Publication date
FR714774A (fr) 1931-11-19

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