GB1515386A - Optical reader correlation circuit - Google Patents

Optical reader correlation circuit

Info

Publication number
GB1515386A
GB1515386A GB33195/75A GB3319575A GB1515386A GB 1515386 A GB1515386 A GB 1515386A GB 33195/75 A GB33195/75 A GB 33195/75A GB 3319575 A GB3319575 A GB 3319575A GB 1515386 A GB1515386 A GB 1515386A
Authority
GB
United Kingdom
Prior art keywords
signals
sensors
centre
phosphor screen
image
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
GB33195/75A
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.)
Raytheon Co
Original Assignee
E Systems Inc
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 E Systems Inc filed Critical E Systems Inc
Publication of GB1515386A publication Critical patent/GB1515386A/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
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • 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
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
GB33195/75A 1974-11-20 1975-08-08 Optical reader correlation circuit Expired GB1515386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52538774A 1974-11-20 1974-11-20

Publications (1)

Publication Number Publication Date
GB1515386A true GB1515386A (en) 1978-06-21

Family

ID=24093041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33195/75A Expired GB1515386A (en) 1974-11-20 1975-08-08 Optical reader correlation circuit

Country Status (9)

Country Link
US (1) US4092525A (https=)
JP (1) JPS5848947B2 (https=)
AU (1) AU498576B2 (https=)
BE (1) BE832612A (https=)
CA (1) CA1054717A (https=)
DE (1) DE2551420A1 (https=)
FR (1) FR2292288A1 (https=)
GB (1) GB1515386A (https=)
IL (1) IL47931A (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636906C3 (de) * 1976-08-17 1983-12-29 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Verfahren zur Erzeugung eines Schaltsignals beim Durchgang eines Kontrastsprunges und Schaltungsanordnung zur Ausführung des Verfahrens
DE3014467A1 (de) * 1980-04-15 1981-11-12 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum erkennen von strichfoermigen markierungen
US4542528A (en) * 1981-04-09 1985-09-17 Recognition Equipment Incorporated OCR and bar code reader with optimized sensor
FR2569022B1 (fr) * 1984-08-10 1986-11-21 Thomson Csf Procede de detection de codes-barres et dispositif pour la mise en oeuvre du procede
US4757189A (en) * 1986-03-04 1988-07-12 Daboub Henry A Apparatus for coding reusable envelopes
US5086215A (en) * 1988-10-26 1992-02-04 National Computer Systems, Inc. Method and apparatus for discriminating or locating bar codes for an optical mark reader
US5326963A (en) * 1992-10-02 1994-07-05 Kronos Incorporated Electro-optic barcode reader
US6772948B2 (en) * 2000-12-28 2004-08-10 Ericsson Inc. Manual bar code scanner with improved reliability
US20060087622A1 (en) * 2004-10-21 2006-04-27 Brown Stephen J Projector apparatus and methods

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266029B (de) * 1962-05-02 1968-04-11 Olympia Werke Ag Einrichtung zur zeitlichen Anpassung der von einem Taktgeber gelieferten Impulsfolge an den Vorlauf einer ohne Transportlochungen ausgebildeten Lochkarte
US3628031A (en) * 1969-02-06 1971-12-14 Automata Corp Closed loop control system for automatic sensitivity control of transducer
US3643066A (en) * 1970-02-12 1972-02-15 Calculagraph Co Arrangement for the automatic identification of information on a nonperforated data processing card
US3716699A (en) * 1971-04-02 1973-02-13 A Eckert Method and apparatus for optical code reading
US3723710A (en) * 1971-06-28 1973-03-27 Ibm Method and device for reading and decoding a high density self-clocking bar code
GB1399256A (en) * 1971-10-22 1975-07-02 Sick Erwin Method and apparatus for detecting the passing of a straight contrast boundary
US3727202A (en) * 1972-01-10 1973-04-10 Telex Computer Products Application of an automatic pulse width controlled, monostable multivibrator for detecting phase encoded information on magnetic tape
JPS4914038A (https=) * 1972-05-16 1974-02-07
US3763351A (en) * 1972-07-14 1973-10-02 Ibm Bar code scanner
US3854035A (en) * 1972-07-31 1974-12-10 Ferranti Packard Ltd Method and means for reading coded information
JPS4967524A (https=) * 1972-11-01 1974-07-01

Also Published As

Publication number Publication date
FR2292288B1 (https=) 1981-08-21
FR2292288A1 (fr) 1976-06-18
IL47931A0 (en) 1975-11-25
DE2551420A1 (de) 1976-05-26
JPS5165833A (https=) 1976-06-07
AU498576B2 (en) 1979-03-15
CA1054717A (en) 1979-05-15
AU8371475A (en) 1977-02-10
IL47931A (en) 1977-01-31
JPS5848947B2 (ja) 1983-11-01
BE832612A (fr) 1975-12-16
US4092525A (en) 1978-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee