NL7403516A - 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
NL7403516A
NL7403516A NL7403516A NL7403516A NL7403516A NL 7403516 A NL7403516 A NL 7403516A NL 7403516 A NL7403516 A NL 7403516A NL 7403516 A NL7403516 A NL 7403516A NL 7403516 A NL7403516 A NL 7403516A
Authority
NL
Netherlands
Prior art keywords
electronic
matrix
ciphers
utilises
pickup device
Prior art date
Application number
NL7403516A
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
Priority claimed from NL7310524A external-priority patent/NL7310524A/en
Priority to NL7403516A priority Critical patent/NL7403516A/en
Application filed by Nederlanden Staat filed Critical Nederlanden Staat
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 BE7000555A priority patent/BE818282A/en
Priority to FR7426481A priority patent/FR2239723B1/fr
Priority to GB3361174A priority patent/GB1472443A/en
Priority to JP49087452A priority patent/JPS6259350B2/ja
Publication of NL7403516A publication Critical patent/NL7403516A/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.
NL7403516A 1973-07-30 1974-03-15 Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device NL7403516A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
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
BE7000555A BE818282A (en) 1973-07-30 1974-07-30 METHOD AND DEVICE FOR READING SIGNS
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

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
NL7403516A true NL7403516A (en) 1975-09-17

Family

ID=26644900

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (1)

Country Link
NL (1) NL7403516A (en)

Similar Documents

Publication Publication Date Title
ES360956A1 (en) A system of graphic communication. (Machine-translation by Google Translate, not legally binding)
US3846752A (en) Character recognition apparatus
GB1074858A (en) Pattern identification apparatus
GB1166759A (en) Character Readers
ES477151A1 (en) Recognition apparatus
DE3266906D1 (en) Method and apparatus for the reproduction of an image with a coarser resolution than during picture scanning
EP0296516A3 (en) Signs and objects recognition process
FR1392472A (en) Method and apparatus for reading information, for example on cards
US3238357A (en) Photo-responsive clock for card reader
ES2058188T3 (en) CIRCUIT PROVISION FOR THE PREPARATION OF INCLINED CHARACTERS, ESPECIALLY MANUSCRIPT CHARACTERS.
NL7310524A (en) Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device
NL7403516A (en) Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device
NL7405344A (en) Electronic appts. for reading tokens - utilises ciphers projected onto a matrix with an electronic pickup device
GB987146A (en) Improvements in or relating to photographic storage systems
US3413602A (en) Data conversion techniques for producing autocorrelation functions
GB911905A (en) Character reading system
JPS57203177A (en) Character recognizing system
GB951014A (en) Improvements in or relating to character recognition systems
JPS54152806A (en) Noise eliminating circuit for picture process
JPS55138603A (en) Detecting system of pattern position
US3262098A (en) Pattern data converter employing bandwidth filters
JPS57136284A (en) Optical character reader
JPS53138630A (en) Picture processing method
JPS55135972A (en) Character line direction discrimination circuit
JPS57157381A (en) Character recognizing device

Legal Events

Date Code Title Description
BV The patent application has lapsed