NL7310524A - Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device - Google Patents

Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device

Info

Publication number
NL7310524A
NL7310524A NL7310524A NL7310524A NL7310524A NL 7310524 A NL7310524 A NL 7310524A NL 7310524 A NL7310524 A NL 7310524A NL 7310524 A NL7310524 A NL 7310524A NL 7310524 A NL7310524 A NL 7310524A
Authority
NL
Netherlands
Prior art keywords
electronic
matrix
ciphers
utilises
pickup device
Prior art date
Application number
NL7310524A
Other languages
Dutch (nl)
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Priority to NL7310524A priority Critical patent/NL7310524A/en
Priority to NL7403516A priority patent/NL7403516A/en
Priority to CH905674A priority patent/CH591726A5/xx
Priority to DE2432129A priority patent/DE2432129C3/en
Priority to CA204,920A priority patent/CA1045246A/en
Priority to US05/490,653 priority patent/US3999161A/en
Priority to SE7409726A priority patent/SE412965B/en
Priority to JP49087452A priority patent/JPS6259350B2/ja
Priority to FR7426481A priority patent/FR2239723B1/fr
Priority to GB3361174A priority patent/GB1472443A/en
Priority to BE7000555A priority patent/BE818282A/en
Publication of NL7310524A publication Critical patent/NL7310524A/en

Links

Classifications

    • 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
    • G06V30/18—Extraction of features or characteristics of the image
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Testing Of Coins (AREA)

Abstract

The automatic reader for tokens comprises a pattern recognition cct. in which portions of the design are projected on a matrix. A secondary image is formed and the pattern analysed according to a statistical distribution of densities. Light pattern configuration are converted to electronic impulses which are registered on a logarithmic scale, by scanning in both horizontal and vertical directions. Data analysis is performed by an electronic cct. with rectifiers and gate elements.
NL7310524A 1973-07-30 1973-07-30 Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device NL7310524A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NL7310524A NL7310524A (en) 1973-07-30 1973-07-30 Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device
NL7403516A NL7403516A (en) 1973-07-30 1974-03-15 Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device
CH905674A CH591726A5 (en) 1973-07-30 1974-07-02
DE2432129A DE2432129C3 (en) 1973-07-30 1974-07-04 Method for machine reading of characters and device for carrying out the method
CA204,920A CA1045246A (en) 1973-07-30 1974-07-17 Method and device for the recognition of characters, preferably of figures
US05/490,653 US3999161A (en) 1973-07-30 1974-07-22 Method and device for the recognition of characters, preferably of figures
SE7409726A SE412965B (en) 1973-07-30 1974-07-26 SET AND DEVICE FOR MACHINELY READ THE SIGNS INSERT IN CERTAIN FIELDS OF A COMPUTER
JP49087452A JPS6259350B2 (en) 1973-07-30 1974-07-30
FR7426481A FR2239723B1 (en) 1973-07-30 1974-07-30
GB3361174A GB1472443A (en) 1973-07-30 1974-07-30 Method of and apparatus for recognition of characters
BE7000555A BE818282A (en) 1973-07-30 1974-07-30 METHOD AND DEVICE FOR READING SIGNS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7310524A NL7310524A (en) 1973-07-30 1973-07-30 Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device

Publications (1)

Publication Number Publication Date
NL7310524A true NL7310524A (en) 1975-02-03

Family

ID=19819342

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7310524A NL7310524A (en) 1973-07-30 1973-07-30 Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device

Country Status (1)

Country Link
NL (1) NL7310524A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed