GB280235A - Improvements in or relating to directional wireless apparatus - Google Patents

Improvements in or relating to directional wireless apparatus

Info

Publication number
GB280235A
GB280235A GB29660/27A GB2966027A GB280235A GB 280235 A GB280235 A GB 280235A GB 29660/27 A GB29660/27 A GB 29660/27A GB 2966027 A GB2966027 A GB 2966027A GB 280235 A GB280235 A GB 280235A
Authority
GB
United Kingdom
Prior art keywords
electron stream
sector
voltages
signals
impact
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
GB29660/27A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB280235A publication Critical patent/GB280235A/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
    • 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)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

280,235. Telefunken Ges. f³r Drahtlose Telegraphie. Nov. 5, 1926, [Convention date]. Vacuum tubes.-The path of the electron stream from a cathoderay tube is controlled by voltages derived from a pair of directional aerials. The incoming signal voltages are applied across two pairs of control electrodes a, a, b, b, which may be either plates or coils. For a definite ratio of applied voltages, the path of the electron stream will strike a sector-shaped metal screen S. and will induce currents which may be detected in a suitable external circuit (not shown). Other ratios, corresponding to signals coming from directions other than that desired, will not be recorded in the external detecting circuit. A screening device may be incorporated in the tube further to protect the sector S against undesired signals. Alternatively the sector S may be replaced by a screen adapted to be illuminated by the impact of the electron stream, the luminescence, in turn, exciting a photoelectric cell inserted in series with a suitable indicating circuit. Or secondary emission created by the impact of the electron stream may be utilized to record the incoming signals. Specification 247,344 is referred to.
GB29660/27A 1926-11-05 1927-11-05 Improvements in or relating to directional wireless apparatus Expired GB280235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE280235X 1926-11-05

Publications (1)

Publication Number Publication Date
GB280235A true GB280235A (en) 1928-06-21

Family

ID=6029929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29660/27A Expired GB280235A (en) 1926-11-05 1927-11-05 Improvements in or relating to directional wireless apparatus

Country Status (2)

Country Link
US (1) US1892220A (en)
GB (1) GB280235A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726385A (en) * 1942-11-28 1955-12-06 James R Moore Double lobe pulse echo locator display
US2942121A (en) * 1957-06-14 1960-06-21 Geoffrey A Hotham Displacement follower

Also Published As

Publication number Publication date
US1892220A (en) 1932-12-27

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