GB1498146A - Indication device in plan position indication system - Google Patents

Indication device in plan position indication system

Info

Publication number
GB1498146A
GB1498146A GB38262/75A GB3826275A GB1498146A GB 1498146 A GB1498146 A GB 1498146A GB 38262/75 A GB38262/75 A GB 38262/75A GB 3826275 A GB3826275 A GB 3826275A GB 1498146 A GB1498146 A GB 1498146A
Authority
GB
United Kingdom
Prior art keywords
degrees
counter
output
angle
count
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
GB38262/75A
Other languages
English (en)
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Publication of GB1498146A publication Critical patent/GB1498146A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G01S7/62—Cathode-ray tube displays
    • G01S7/6218—Cathode-ray tube displays providing two-dimensional coordinated display of distance and direction
    • G01S7/6227—Plan-position indicators, i.e. P.P.I.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Road Signs Or Road Markings (AREA)
GB38262/75A 1974-11-15 1975-09-17 Indication device in plan position indication system Expired GB1498146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13235274A JPS5513556B2 (enrdf_load_stackoverflow) 1974-11-15 1974-11-15

Publications (1)

Publication Number Publication Date
GB1498146A true GB1498146A (en) 1978-01-18

Family

ID=15079338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38262/75A Expired GB1498146A (en) 1974-11-15 1975-09-17 Indication device in plan position indication system

Country Status (5)

Country Link
JP (1) JPS5513556B2 (enrdf_load_stackoverflow)
CA (1) CA1046615A (enrdf_load_stackoverflow)
DE (1) DE2546961C3 (enrdf_load_stackoverflow)
GB (1) GB1498146A (enrdf_load_stackoverflow)
NO (1) NO140867C (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077037A (en) * 1976-08-06 1978-02-28 Raytheon Company Variable range marker
JPS53108957U (enrdf_load_stackoverflow) * 1977-02-03 1978-08-31
CA1116732A (en) * 1977-03-30 1982-01-19 Alan I. Wiener Optical encoder device
JPS586151B2 (ja) * 1977-10-11 1983-02-03 株式会社光電製作所 超音波探知表示装置
JPS5841506Y2 (ja) * 1978-05-31 1983-09-19 日本無線株式会社 水中物体表示装置
FR2544504B1 (fr) * 1983-04-12 1985-07-05 Thomson Csf Dispositif de visualisation pour sonars

Also Published As

Publication number Publication date
NO140867B (no) 1979-08-20
DE2546961C3 (de) 1978-06-15
DE2546961B2 (de) 1977-10-27
NO753064L (enrdf_load_stackoverflow) 1976-05-19
DE2546961A1 (de) 1976-05-26
JPS5157470A (enrdf_load_stackoverflow) 1976-05-19
JPS5513556B2 (enrdf_load_stackoverflow) 1980-04-09
CA1046615A (en) 1979-01-16
NO140867C (no) 1979-11-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee