NL50149C - - Google Patents

Info

Publication number
NL50149C
NL50149C NL50149DA NL50149C NL 50149 C NL50149 C NL 50149C NL 50149D A NL50149D A NL 50149DA NL 50149 C NL50149 C NL 50149C
Authority
NL
Netherlands
Application number
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.)
Publication of NL50149C publication Critical patent/NL50149C/xx

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
    • 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
    • G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Superheterodyne Receivers (AREA)
NL50149D 1937-05-28 NL50149C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB207371X 1937-05-28

Publications (1)

Publication Number Publication Date
NL50149C true NL50149C (xx)

Family

ID=10150795

Family Applications (1)

Application Number Title Priority Date Filing Date
NL50149D NL50149C (xx) 1937-05-28

Country Status (5)

Country Link
US (1) US2213874A (xx)
CH (1) CH207371A (xx)
FR (1) FR838506A (xx)
GB (1) GB496239A (xx)
NL (1) NL50149C (xx)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475412A (en) * 1949-07-05 Torcheux
US2415954A (en) * 1942-02-28 1947-02-18 Rca Corp Radio direction finding
US2415955A (en) * 1942-02-28 1947-02-18 Rca Corp Radio direction finding
US2720647A (en) * 1942-04-30 1955-10-11 Sperry Rand Corp Radio range indicating system
US2422073A (en) * 1942-07-30 1947-06-10 Rca Corp Radio direction finder
US2666192A (en) * 1944-07-27 1954-01-12 Frederick V Hunt Apparatus for determining the direction of underwater targets
US2642473A (en) * 1944-12-07 1953-06-16 Bell Telephone Labor Inc Wave translating system
US2524768A (en) * 1944-12-16 1950-10-10 Standard Telephones Cables Ltd Radio direction finder
US2485642A (en) * 1945-03-05 1949-10-25 Standard Telephones Cables Ltd Electronic switching system
US2444439A (en) * 1945-03-26 1948-07-06 Standard Telephones Cables Ltd Beacon receiver means
US2449553A (en) * 1945-09-14 1948-09-21 Paul G Hansel Radio compass
US2913721A (en) * 1953-06-20 1959-11-17 Csf Radio direction finding system
DE965501C (de) * 1955-12-01 1957-06-13 Lorenz C Ag Peilanordnung unter Benutzung von mehr als zwei sternfoermig gekreuzten, auf je einer Basis aufbauenden Antennensystemen
US7307595B2 (en) * 2004-12-21 2007-12-11 Q-Track Corporation Near field location system and method
US6963301B2 (en) * 2002-08-19 2005-11-08 G-Track Corporation System and method for near-field electromagnetic ranging
US7298314B2 (en) * 2002-08-19 2007-11-20 Q-Track Corporation Near field electromagnetic positioning system and method
US7414571B2 (en) * 2002-08-19 2008-08-19 Q-Track Corporation Low frequency asset tag tracking system and method
US8774837B2 (en) 2011-04-30 2014-07-08 John Anthony Wright Methods, systems and apparatuses of emergency vehicle locating and the disruption thereof
CN107037394B (zh) * 2016-02-03 2020-06-23 希姆通信息技术（上海）有限公司 方向定位设备及方法

Also Published As

Publication number Publication date
US2213874A (en) 1940-09-03
FR838506A (fr) 1939-03-08
GB496239A (en) 1938-11-28
CH207371A (de) 1939-10-31

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