JPS57193809A - Generator for quadric curve signal - Google Patents

Generator for quadric curve signal

Info

Publication number
JPS57193809A
JPS57193809A JP7889981A JP7889981A JPS57193809A JP S57193809 A JPS57193809 A JP S57193809A JP 7889981 A JP7889981 A JP 7889981A JP 7889981 A JP7889981 A JP 7889981A JP S57193809 A JPS57193809 A JP S57193809A
Authority
JP
Japan
Prior art keywords
end point
value
quadric curve
curve signal
coincidence
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.)
Granted
Application number
JP7889981A
Other languages
Japanese (ja)
Other versions
JPS6312283B2 (en
Inventor
Yuji Yamaguchi
Takao Asaka
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP7889981A priority Critical patent/JPS57193809A/en
Priority to US06/365,938 priority patent/US4484298A/en
Publication of JPS57193809A publication Critical patent/JPS57193809A/en
Publication of JPS6312283B2 publication Critical patent/JPS6312283B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Computational Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Numerical Control (AREA)
  • Image Generation (AREA)

Abstract

PURPOSE:To simplify the setting of an end point of a quadric curve signal and its discrimination algorithm, by detecting the end point through the coincidence between a sign of a differential coefficient of the end point and either value of X or Y coordinate. CONSTITUTION:In equations of a quadric curve signal generating section CC, the coincidence between a value Y of the Y coordinate outputted to a Y counter CUY and a value YE of end point coordinae set to an end point register R4 and that between a value of an SFX(1-bit) and a signal SFXE of the differential coefficient of the end point set to an end point register R1 are detected at coincidence detecting circuits EX01 and EX02, and when the two are coincident, the point is detected at the end point. A completion signal from a gate circuit GO is given to the section CC to stop a quadric curve signal output.
JP7889981A 1981-04-30 1981-05-25 Generator for quadric curve signal Granted JPS57193809A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7889981A JPS57193809A (en) 1981-05-25 1981-05-25 Generator for quadric curve signal
US06/365,938 US4484298A (en) 1981-04-30 1982-04-05 Method and device for generation of quadratic curve signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7889981A JPS57193809A (en) 1981-05-25 1981-05-25 Generator for quadric curve signal

Publications (2)

Publication Number Publication Date
JPS57193809A true JPS57193809A (en) 1982-11-29
JPS6312283B2 JPS6312283B2 (en) 1988-03-18

Family

ID=13674663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7889981A Granted JPS57193809A (en) 1981-04-30 1981-05-25 Generator for quadric curve signal

Country Status (1)

Country Link
JP (1) JPS57193809A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143685U (en) * 1989-04-27 1990-12-05

Also Published As

Publication number Publication date
JPS6312283B2 (en) 1988-03-18

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