FR2394857A1 - Photoelectric curve tracing system - uses different coloured curves , with detector which will only detect colour assigned to it - Google Patents

Photoelectric curve tracing system - uses different coloured curves , with detector which will only detect colour assigned to it

Info

Publication number
FR2394857A1
FR2394857A1 FR7632168A FR7632168A FR2394857A1 FR 2394857 A1 FR2394857 A1 FR 2394857A1 FR 7632168 A FR7632168 A FR 7632168A FR 7632168 A FR7632168 A FR 7632168A FR 2394857 A1 FR2394857 A1 FR 2394857A1
Authority
FR
France
Prior art keywords
curves
detector
uses different
tracing system
different coloured
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
FR7632168A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7632168A priority Critical patent/FR2394857A1/en
Publication of FR2394857A1 publication Critical patent/FR2394857A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

The system is designed to simultaneously read two curves by means of photo electric detectors. The detectors are designed so that each of them only sees the curve assigned to it. The curves to be detected are drawn in red and green. A transparent red screen is placed in front of one of the detection and a transparent green screen in front of the other. The green screen detector will be insensitive to the green curve but will see the red and vice versa. The photo electric detection used a sensitive to a certain wavelength band and the curves are drawn in a corresp. colour.
FR7632168A 1976-10-26 1976-10-26 Photoelectric curve tracing system - uses different coloured curves , with detector which will only detect colour assigned to it Pending FR2394857A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7632168A FR2394857A1 (en) 1976-10-26 1976-10-26 Photoelectric curve tracing system - uses different coloured curves , with detector which will only detect colour assigned to it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7632168A FR2394857A1 (en) 1976-10-26 1976-10-26 Photoelectric curve tracing system - uses different coloured curves , with detector which will only detect colour assigned to it

Publications (1)

Publication Number Publication Date
FR2394857A1 true FR2394857A1 (en) 1979-01-12

Family

ID=9179188

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7632168A Pending FR2394857A1 (en) 1976-10-26 1976-10-26 Photoelectric curve tracing system - uses different coloured curves , with detector which will only detect colour assigned to it

Country Status (1)

Country Link
FR (1) FR2394857A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031502A2 (en) * 1979-12-31 1981-07-08 International Business Machines Corporation Hand-held apparatus for sensing non-coded images

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999938A (en) * 1958-04-22 1961-09-12 Hunting Eng Ltd Automatic line follower

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999938A (en) * 1958-04-22 1961-09-12 Hunting Eng Ltd Automatic line follower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031502A2 (en) * 1979-12-31 1981-07-08 International Business Machines Corporation Hand-held apparatus for sensing non-coded images
EP0031502A3 (en) * 1979-12-31 1982-03-24 International Business Machines Corporation Hand-held apparatus for sensing non-coded images

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