CA946069A - Document with chemically developable precisely defined alphanumeric characters - Google Patents

Document with chemically developable precisely defined alphanumeric characters

Info

Publication number
CA946069A
CA946069A CA118,595A CA118595A CA946069A CA 946069 A CA946069 A CA 946069A CA 118595 A CA118595 A CA 118595A CA 946069 A CA946069 A CA 946069A
Authority
CA
Canada
Prior art keywords
document
alphanumeric characters
precisely defined
defined alphanumeric
developable
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
CA118,595A
Other languages
English (en)
Other versions
CA118595S (en
Inventor
Arden A. Parker
John J. Kotla
Donald W. Carlsen
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA946069A publication Critical patent/CA946069A/en
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
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • 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
    • G06V30/22—Character recognition characterised by the type of writing
    • G06V30/224—Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Color Printing (AREA)
  • Character Discrimination (AREA)
CA118,595A 1970-08-31 1971-07-20 Document with chemically developable precisely defined alphanumeric characters Expired CA946069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6827370A 1970-08-31 1970-08-31

Publications (1)

Publication Number Publication Date
CA946069A true CA946069A (en) 1974-04-23

Family

ID=22081527

Family Applications (1)

Application Number Title Priority Date Filing Date
CA118,595A Expired CA946069A (en) 1970-08-31 1971-07-20 Document with chemically developable precisely defined alphanumeric characters

Country Status (6)

Country Link
US (1) US3676646A (ja)
JP (1) JPS536819B1 (ja)
CA (1) CA946069A (ja)
DE (1) DE2142814A1 (ja)
FR (1) FR2101511A5 (ja)
GB (1) GB1323405A (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860790A (en) * 1973-01-22 1975-01-14 Minnesota Mining & Mfg Data processing form
US4249072A (en) * 1979-06-13 1981-02-03 Micr-Shield Co. Method of correcting erroneously encoded optical character recognition encoding
FR2590053A1 (fr) * 1985-06-10 1987-05-15 Herbault Patrick Procede de traitement automatique de caracteres
US5548107A (en) * 1988-08-26 1996-08-20 Accu-Sort Systems, Inc. Scanner for reconstructing optical codes from a plurality of code fragments
US5124538B1 (en) * 1988-08-26 1995-01-31 Accu Sort Systems Inc Scanner
GB2271316A (en) * 1992-10-09 1994-04-13 Soc Corp OCR cards for use in a computer-aided management system.
US6985600B2 (en) 1994-03-17 2006-01-10 Digimarc Corporation Printing media and methods employing digital watermarking
GB2374569B (en) * 2001-04-17 2003-03-19 Paul Ware Postal system
US20060078673A1 (en) * 2004-09-03 2006-04-13 Jacqueline Ripstein Method for printing using invisible inks
US8073237B2 (en) * 2008-05-27 2011-12-06 Xerox Corporation Job integrity sensing with clear toner, output management and control system
US10474858B2 (en) 2011-08-30 2019-11-12 Digimarc Corporation Methods of identifying barcoded items by evaluating multiple identification hypotheses, based on data from sensors including inventory sensors and ceiling-mounted cameras

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732223A (en) * 1927-10-04 1929-10-22 Underwood Elliott Fisher Co Check protecting
US1884197A (en) * 1930-11-13 1932-10-25 Hans J Peterson Self-instructor and tester
NL93527C (ja) * 1954-06-12
US3031961A (en) * 1959-01-02 1962-05-01 Interchem Corp Method of typographic printing
US3011905A (en) * 1959-09-09 1961-12-05 Columbia Ribbon & Carbon Manifold system comprising reactant donor and receptor sheets
US3088841A (en) * 1960-03-01 1963-05-07 American Bank Note Co Safety inks and documents
NL129561C (ja) * 1964-09-09
US3485168A (en) * 1967-02-20 1969-12-23 Meredith Publishing Co Method for forming written symbols to be read by automatic character recognition equipment
US3438927A (en) * 1967-04-28 1969-04-15 Meredith Publishing Co Invisible ink

Also Published As

Publication number Publication date
FR2101511A5 (ja) 1972-03-31
GB1323405A (en) 1973-07-18
DE2142814A1 (de) 1972-03-09
JPS536819B1 (ja) 1978-03-11
US3676646A (en) 1972-07-11

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