FR815905A - Improvements to direction finders - Google Patents

Improvements to direction finders

Info

Publication number: FR815905A
Authority: FR; France
Prior art keywords: direction finders; finders
Prior art date: 1935-10-02
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

Inventor

Hefele Edward J

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.)

1935-10-02

Filing date

1936-10-02

Publication date

1937-07-26

1936-10-02 Application filed filed Critical

1937-07-26 Application granted granted Critical

1937-07-26 Publication of FR815905A publication Critical patent/FR815905A/en

Status Expired legal-status Critical Current

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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

FR815905D 1935-10-02 1936-10-02 Improvements to direction finders Expired FR815905A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US482717XA	1935-10-02	1935-10-02

Publications (1)

Publication Number	Publication Date
FR815905A true FR815905A (en)	1937-07-26

Family

ID=21953633

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR815905D Expired FR815905A (en)	1935-10-02	1936-10-02	Improvements to direction finders

Country Status (2)

Country	Link
FR (1)	FR815905A (en)
GB (1)	GB482717A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2422446A (en) *	1941-05-15	1947-06-17	Bendix Aviat Corp	Sonic direction finding
US2420439A (en) *	1943-11-02	1947-05-13	Morrison Montford	Aircraft range and direction finder
US2529658A (en) *	1944-01-31	1950-11-14	Brush Dev Co	Transducer and system
DE102005011999A1 (en) *	2005-03-16	2006-09-21	Ewation Gmbh	Active receiving antenna system

1936
- 1936-10-01 GB GB26681/36A patent/GB482717A/en not_active Expired
- 1936-10-02 FR FR815905D patent/FR815905A/en not_active Expired

Also Published As

Publication number	Publication date
GB482717A (en)	1938-04-01

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