JPS56115969A - Scan conversion method - Google Patents

Scan conversion method

Info

Publication number
JPS56115969A
JPS56115969A JP1994580A JP1994580A JPS56115969A JP S56115969 A JPS56115969 A JP S56115969A JP 1994580 A JP1994580 A JP 1994580A JP 1994580 A JP1994580 A JP 1994580A JP S56115969 A JPS56115969 A JP S56115969A
Authority
JP
Japan
Prior art keywords
frame
picture element
polar
element position
circuit
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
JP1994580A
Other languages
Japanese (ja)
Inventor
Shozo Shibuya
Kiyoaki Munemaru
Yoshinori Fujiwara
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
Priority to JP1994580A priority Critical patent/JPS56115969A/en
Publication of JPS56115969A publication Critical patent/JPS56115969A/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/295—Means for transforming co-ordinates or for evaluating data, e.g. using computers
    • G01S7/298—Scan converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To perform the coordinate conversion of the picture element position between the polar frame and the X-Y frame with a memory circuit of comparatively small capacity by employing the first and second position designating circuits which store specified data. CONSTITUTION:The first and second position designating circuits 10 and 11 are used to convert the picture element position between the X-Y frame and the polar frame. The first position designating circuit 10 stores the picture element position on the X-Y frame corresponding to the reference position of the scanning lines on the polar frame. On the other hand, the second position designating circuit 11 stores the changing amount of the picture element position of the X-Y frame following the scanning of the picture element on the polar frame. Because the number of the digits for the changing amount of the picture element position is one over several to one over ten odd of that for the picture element position, the capacity of the second position designating circuit 11 can be small.
JP1994580A 1980-02-19 1980-02-19 Scan conversion method Pending JPS56115969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1994580A JPS56115969A (en) 1980-02-19 1980-02-19 Scan conversion method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1994580A JPS56115969A (en) 1980-02-19 1980-02-19 Scan conversion method

Publications (1)

Publication Number Publication Date
JPS56115969A true JPS56115969A (en) 1981-09-11

Family

ID=12013336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1994580A Pending JPS56115969A (en) 1980-02-19 1980-02-19 Scan conversion method

Country Status (1)

Country Link
JP (1) JPS56115969A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59117881A (en) * 1982-12-25 1984-07-07 Shimadzu Corp Video memory device for x-ray television

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299797A (en) * 1976-02-16 1977-08-22 Hollandse Signaalapparaten Bv Digital scanning transducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299797A (en) * 1976-02-16 1977-08-22 Hollandse Signaalapparaten Bv Digital scanning transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59117881A (en) * 1982-12-25 1984-07-07 Shimadzu Corp Video memory device for x-ray television

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