JPS51142288A - Direction indicator - Google Patents

Direction indicator

Info

Publication number
JPS51142288A
JPS51142288A JP5127075A JP5127075A JPS51142288A JP S51142288 A JPS51142288 A JP S51142288A JP 5127075 A JP5127075 A JP 5127075A JP 5127075 A JP5127075 A JP 5127075A JP S51142288 A JPS51142288 A JP S51142288A
Authority
JP
Japan
Prior art keywords
direction indicator
directional antenna
pointer
arrival
combining
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.)
Pending
Application number
JP5127075A
Other languages
Japanese (ja)
Inventor
Mikio Hosono
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.)
KOUDEN SEISAKUSHIYO KK
Koden Electronics Co Ltd
Original Assignee
KOUDEN SEISAKUSHIYO KK
Koden Electronics Co Ltd
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 KOUDEN SEISAKUSHIYO KK, Koden Electronics Co Ltd filed Critical KOUDEN SEISAKUSHIYO KK
Priority to JP5127075A priority Critical patent/JPS51142288A/en
Publication of JPS51142288A publication Critical patent/JPS51142288A/en
Pending 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
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
    • G01S3/42—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal the desired condition being maintained automatically

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To indicate the direction of the arrival of radio waves and sound waves with a pointer by combining a directional antenna and a non-directional antenna.
JP5127075A 1975-04-30 1975-04-30 Direction indicator Pending JPS51142288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5127075A JPS51142288A (en) 1975-04-30 1975-04-30 Direction indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5127075A JPS51142288A (en) 1975-04-30 1975-04-30 Direction indicator

Publications (1)

Publication Number Publication Date
JPS51142288A true JPS51142288A (en) 1976-12-07

Family

ID=12882244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5127075A Pending JPS51142288A (en) 1975-04-30 1975-04-30 Direction indicator

Country Status (1)

Country Link
JP (1) JPS51142288A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168177A (en) * 1981-05-07 1981-12-24 Koden Electronics Co Ltd Direction indicating device
US7255220B2 (en) 2002-12-20 2007-08-14 Honda Motor Co., Ltd. Conveyance system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168177A (en) * 1981-05-07 1981-12-24 Koden Electronics Co Ltd Direction indicating device
US7255220B2 (en) 2002-12-20 2007-08-14 Honda Motor Co., Ltd. Conveyance system

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