CA1051118A - Coded information-reading device - Google Patents

Coded information-reading device

Info

Publication number
CA1051118A
CA1051118A CA216,882A CA216882A CA1051118A CA 1051118 A CA1051118 A CA 1051118A CA 216882 A CA216882 A CA 216882A CA 1051118 A CA1051118 A CA 1051118A
Authority
CA
Canada
Prior art keywords
circuit
counter
bit
reading
information
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
CA216,882A
Other languages
English (en)
French (fr)
Inventor
Toshio Kashio
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co Ltd
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 JP48144074A external-priority patent/JPS5935061B2/ja
Priority claimed from JP5226674A external-priority patent/JPS50145220A/ja
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Application granted granted Critical
Publication of CA1051118A publication Critical patent/CA1051118A/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
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0166—Synchronisation of sensing process by means of clock-signals derived from the code marks, e.g. self-clocking code

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
CA216,882A 1973-12-26 1974-12-23 Coded information-reading device Expired CA1051118A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48144074A JPS5935061B2 (ja) 1973-12-26 1973-12-26 バ−コ−ド読み出し装置
JP5226674A JPS50145220A (enExample) 1974-05-13 1974-05-13

Publications (1)

Publication Number Publication Date
CA1051118A true CA1051118A (en) 1979-03-20

Family

ID=26392870

Family Applications (1)

Application Number Title Priority Date Filing Date
CA216,882A Expired CA1051118A (en) 1973-12-26 1974-12-23 Coded information-reading device

Country Status (5)

Country Link
US (1) US3959625A (enExample)
CA (1) CA1051118A (enExample)
DE (1) DE2461380C3 (enExample)
FR (1) FR2256480B1 (enExample)
GB (1) GB1488172A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230119A (en) * 1975-09-02 1977-03-07 Matsushita Electric Ind Co Ltd Bar code discrimination logical circuit
US4205781A (en) * 1975-10-02 1980-06-03 Interroll Fordertechnik Gmbh & Co. K.G. Arrangement for synchronizing an information reading device with the speed of an information medium
DE2544119A1 (de) * 1975-10-02 1977-04-14 Interroll Foerdertechnik Gmbh Anordnung zur synchronisierung einer informations-leseeinrichtung mit der geschwindigkeit eines informationstraegers
US4176259A (en) * 1976-10-04 1979-11-27 Honeywell Information Systems, Inc. Read apparatus
US4086477A (en) * 1977-06-27 1978-04-25 International Business Machines Corporation Decoding method and circuit
NL7801041A (nl) * 1978-01-30 1979-08-01 Philips Nv Werkwijze voor het adresseren en/of terugzoeken van informatie op een registratiedrager.
US4260979A (en) * 1979-12-31 1981-04-07 International Business Machines Corporation Apparatus for sensing non-coded images
US4611335A (en) * 1981-09-30 1986-09-09 Hitachi, Ltd. Digital data synchronizing circuit
US5502297A (en) * 1992-10-22 1996-03-26 Intermec Corporation Method and apparatus for detecting the presence of a surface bearing a bar code symbol
US6222697B1 (en) * 1997-02-07 2001-04-24 International Business Machines Corporation Apparatus with the method of unique disk identification for magnetic hard disk drives

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731064A (en) * 1970-07-28 1973-05-01 Pitney Bowes Alpex Data processing system and reader therefor
US3838251A (en) * 1971-06-29 1974-09-24 Monarch Marking Systems Inc Method of interpreting a coded record
US3737632A (en) * 1972-03-23 1973-06-05 R Barnes Rate adaptive nonsynchronous demodulator apparatus for biphase binary signals

Also Published As

Publication number Publication date
FR2256480B1 (enExample) 1977-11-10
FR2256480A1 (enExample) 1975-07-25
DE2461380A1 (de) 1975-07-03
US3959625A (en) 1976-05-25
GB1488172A (en) 1977-10-05
DE2461380C3 (de) 1981-02-12
DE2461380B2 (de) 1977-02-17

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