FR74207E - Dispositif électronique pour l'exploration de courbes - Google Patents

Dispositif électronique pour l'exploration de courbes

Info

Publication number
FR74207E
FR74207E FR775357A FR775357A FR74207E FR 74207 E FR74207 E FR 74207E FR 775357 A FR775357 A FR 775357A FR 775357 A FR775357 A FR 775357A FR 74207 E FR74207 E FR 74207E
Authority
FR
France
Prior art keywords
exploring
curves
electronic device
electronic
exploring curves
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
FR775357A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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
Priority claimed from US618553A external-priority patent/US3015730A/en
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Priority to FR775357A priority Critical patent/FR74207E/fr
Application granted granted Critical
Publication of FR74207E publication Critical patent/FR74207E/fr
Expired 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
    • G06K11/02—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve
    • G06K11/04—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve using an auxiliary scanning pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/12—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means
    • B23Q35/127—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using non-mechanical sensing
    • B23Q35/128—Sensing by using optical means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/144—Image acquisition using a slot moved over the image; using discrete sensing elements at predetermined points; using automatic curve following means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Artificial Intelligence (AREA)
  • Algebra (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Software Systems (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
FR775357A 1956-10-26 1958-09-26 Dispositif électronique pour l'exploration de courbes Expired FR74207E (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR775357A FR74207E (fr) 1956-10-26 1958-09-26 Dispositif électronique pour l'exploration de courbes

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US618553A US3015730A (en) 1956-10-26 1956-10-26 Electronic curve follower
US67951257A 1957-08-21 1957-08-21
US687113A US2986643A (en) 1956-10-26 1957-09-30 Form recognition method and system
US687112A US2983822A (en) 1956-10-26 1957-09-30 Form recognition method and system therefor
FR775357A FR74207E (fr) 1956-10-26 1958-09-26 Dispositif électronique pour l'exploration de courbes

Publications (1)

Publication Number Publication Date
FR74207E true FR74207E (fr) 1960-11-07

Family

ID=31192400

Family Applications (1)

Application Number Title Priority Date Filing Date
FR775357A Expired FR74207E (fr) 1956-10-26 1958-09-26 Dispositif électronique pour l'exploration de courbes

Country Status (1)

Country Link
FR (1) FR74207E (fr)

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