GB1379764A - Method and device for identifying documents - Google Patents

Method and device for identifying documents

Info

Publication number
GB1379764A
GB1379764A GB5603071A GB5603071A GB1379764A GB 1379764 A GB1379764 A GB 1379764A GB 5603071 A GB5603071 A GB 5603071A GB 5603071 A GB5603071 A GB 5603071A GB 1379764 A GB1379764 A GB 1379764A
Authority
GB
United Kingdom
Prior art keywords
card
value
filter
dec
degrees
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
GB5603071A
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.)
NETHERLANDS CENTRAL ORGANISATI
Original Assignee
NETHERLANDS CENTRAL ORGANISATI
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 NETHERLANDS CENTRAL ORGANISATI filed Critical NETHERLANDS CENTRAL ORGANISATI
Publication of GB1379764A publication Critical patent/GB1379764A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB5603071A 1970-12-03 1971-12-02 Method and device for identifying documents Expired GB1379764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7017662A NL7017662A (https=) 1970-12-03 1970-12-03

Publications (1)

Publication Number Publication Date
GB1379764A true GB1379764A (en) 1975-01-08

Family

ID=19811714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5603071A Expired GB1379764A (en) 1970-12-03 1971-12-02 Method and device for identifying documents

Country Status (5)

Country Link
CH (1) CH546448A (https=)
DE (1) DE2160179A1 (https=)
GB (1) GB1379764A (https=)
NL (1) NL7017662A (https=)
SE (1) SE7115490L (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8781204B2 (en) 2007-06-01 2014-07-15 Kba-Notasys Sa Authentication of security documents, in particular of banknotes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69015238T2 (de) * 1989-04-12 1995-05-04 Oki Electric Ind Co Ltd Reliefbildabtaster.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8781204B2 (en) 2007-06-01 2014-07-15 Kba-Notasys Sa Authentication of security documents, in particular of banknotes

Also Published As

Publication number Publication date
NL7017662A (https=) 1972-06-06
DE2160179A1 (de) 1972-06-08
SE7115490L (https=) 1972-06-05
CH546448A (de) 1974-02-28

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees