ES2106539T3 - Circuito inhibidor de codigo de barras incorrecto. - Google Patents

Circuito inhibidor de codigo de barras incorrecto.

Info

Publication number
ES2106539T3
ES2106539T3 ES94915970T ES94915970T ES2106539T3 ES 2106539 T3 ES2106539 T3 ES 2106539T3 ES 94915970 T ES94915970 T ES 94915970T ES 94915970 T ES94915970 T ES 94915970T ES 2106539 T3 ES2106539 T3 ES 2106539T3
Authority
ES
Spain
Prior art keywords
bar code
circuit
result
inhibitor
transition
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 - Lifetime
Application number
ES94915970T
Other languages
English (en)
Inventor
Edward C Bremer
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.)
PSC Inc
Original Assignee
PSC 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 PSC Inc filed Critical PSC Inc
Application granted granted Critical
Publication of ES2106539T3 publication Critical patent/ES2106539T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electronic Switches (AREA)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

UN INHIBIDOR DE CODIGOS DE BARRAS FALSOS INCLUYE UN DETECTOR, UN CIRCUITO RESTAURADOR DE SEÑAL, UN COMPARADOR, UN SOFTWARE DE CONTROL, Y UN CIRCUITO DE BLOQUEO DE ALTA IMPEDANCIA. BASICAMENTE, EL CIRCUITO DETECTOR DETECTA LA PRIMERA TRANSICION TANTO DE UNA REFLECTIVIDAD ALTA A UNA BAJA COMO DE UNA REFLECTIVIDAD BAJA A UNA ALTA. LA TRANSICION PONE EN MARCHA EL CIRCUITO DE RESTAURACION DE SEÑAL PROGRAMADO PARA UN TIEMPO CONSTANTE QUE ES MAS LARGO QUE EL TIEMPO MAS LARGO POSIBLE NECESARIO PARA ENCONTRAR OTRA TRANSICION DURANTE LA LECTURA DE UN CODIGO DE BARRAS VALIDO. CADA VEZ QUE SE ENCUENTRA UNA TRANSICION, EL CIRCUITO DE RESTAURACION DE SEÑAL SE PONE EN MARCHA. EL CIRCUITO DE COMPARACION AJUSTABLE EXTERNAMENTE, COMPARA EL RESULTADO DEL CIRCUITO DE RESTAURACION DE SEÑAL CON UN LIMITE, QUE PUEDE AJUSTARSE MEDIANTE EL SOFTWARE DE CONTROL. EL RESULTADO DEL COMPARADOR ACTIVA UN BLOQUEO QUE CONTROLA CUANDO EL DIGITALIZADOR DEL CODIGO DE BARRAS PUEDE ACEPTAR UN RESULTADO. CON EL SOFTWARE DE CONTROL EL RESULTADO DEL COMPARADOR PUEDE CONTROLARSE PERMITIENDO EL CONTROL SOBRE EL RESULTADO DEL DIGITALIZADOR. CON EL INHIBIDOR DE LOS CODIGOS DE BARRAS FALSOS, UNA FALSA BARRA GENERADA AL PRINCIPIO DEL ESCANEO DE UN CODIGO DE BARRAS PUEDE ENMASCARARSE. EL INHIBIDOR TAMBIEN CREA UNA "VENTANA" QUE SE UTILIZA PARA DESENMASCARAR UN CODIGO DE BARRAS VALIDO A PARTIR DE UNA SEÑAL. ADEMAS, EL CIRCUITO INHIBIDOR PERMITE EL CONTROL EXTERNO PARA AJUSTAR LOS NIVELES DEL UMBRAL Y PARA EL CONTROL EXTERNO SOBRE EL RESULTADO DEL DIGITALIZADOR DE CODIGOS DE BARRAS.
ES94915970T 1993-05-10 1994-05-09 Circuito inhibidor de codigo de barras incorrecto. Expired - Lifetime ES2106539T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/059,797 US5382783A (en) 1993-05-10 1993-05-10 False bar code inhibitor circuit

Publications (1)

Publication Number Publication Date
ES2106539T3 true ES2106539T3 (es) 1997-11-01

Family

ID=22025299

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94915970T Expired - Lifetime ES2106539T3 (es) 1993-05-10 1994-05-09 Circuito inhibidor de codigo de barras incorrecto.

Country Status (11)

Country Link
US (1) US5382783A (es)
EP (1) EP0698251B1 (es)
JP (1) JPH08510073A (es)
CN (1) CN1123060A (es)
AU (1) AU6779694A (es)
BR (1) BR9406523A (es)
CA (1) CA2162579A1 (es)
DE (1) DE69404836T2 (es)
ES (1) ES2106539T3 (es)
TW (1) TW248601B (es)
WO (1) WO1994027245A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949054A (en) * 1995-10-23 1999-09-07 Welch Allyn, Inc. Bar code reader for reading high to low contrast bar code symbols
US5864129A (en) * 1997-05-05 1999-01-26 Psc Inc. Bar code digitizer including a voltage comparator
US5984186A (en) 1997-10-29 1999-11-16 Psc Inc. CCD-base bar code scanner
US6296187B1 (en) 1999-11-12 2001-10-02 Psc Inc. CCD-based bar code scanner
US7652268B2 (en) * 2006-01-31 2010-01-26 Jp Laboratories, Inc General purpose, high accuracy dosimeter reader
US8672917B2 (en) * 2009-01-05 2014-03-18 Medtronic, Inc. Pressure monitoring to control delivery of therapeutic agent
US8648317B2 (en) * 2010-01-12 2014-02-11 Landauer, Inc. Reading mechanism for dosimeter
KR101548042B1 (ko) 2010-04-09 2015-08-27 랜다우어, 인크. 선량계 판독기를 위한 전력시스템
US8695880B2 (en) 2011-12-22 2014-04-15 Honeywell International, Inc. Imaging devices and methods for inhibiting or removing captured aiming pattern
US8964417B1 (en) * 2013-12-02 2015-02-24 Grenergy Opto Inc. Power controllers and control methods suitable for operating a switched mode power supply in quasi-resonant mode
CN110620576B (zh) * 2019-08-26 2022-11-25 长春光华科技发展有限公司 一种自反射光电管抗干扰电路

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
US4091379A (en) * 1976-05-03 1978-05-23 Litton Business Systems, Inc. Analog to digital wave shaping system
US4158436A (en) * 1977-07-25 1979-06-19 Amp Incorporated Variable timing circuit for card readers and the like
US4146782A (en) * 1977-08-05 1979-03-27 Process Computer Systems, Inc. Decoder system for light pen bar code reader
US4148010A (en) * 1977-10-31 1979-04-03 Ncr Canada Ltd. - Ncr Canada Ltee Magnetic ink character reader system
US4431912A (en) * 1981-11-13 1984-02-14 International Business Machines Corp. Method for controlling the operation of an optical scanner
US4578570A (en) * 1984-08-14 1986-03-25 Ncr Canada Ltd.-Ncr Canada Ltee Bar code processing apparatus
US4665318A (en) * 1984-10-11 1987-05-12 Canon Kabushiki Kaisha Recording medium mark detector
US4713785A (en) * 1985-04-18 1987-12-15 International Business Machines Corporation Method of inhibiting processing of duplicative coded label signals
US5036183A (en) * 1988-08-25 1991-07-30 Alps Electric Co., Ltd. Code reading device
JP2761265B2 (ja) * 1989-11-07 1998-06-04 富士通株式会社 バーコード読取方式
US5103080A (en) * 1990-12-10 1992-04-07 Symbol Technologies, Inc. Digitizer signal processing circuit for a bar code

Also Published As

Publication number Publication date
CN1123060A (zh) 1996-05-22
US5382783A (en) 1995-01-17
BR9406523A (pt) 1996-01-02
DE69404836T2 (de) 1998-03-05
WO1994027245A1 (en) 1994-11-24
DE69404836D1 (de) 1997-09-11
EP0698251A1 (en) 1996-02-28
CA2162579A1 (en) 1994-11-24
EP0698251B1 (en) 1997-08-06
JPH08510073A (ja) 1996-10-22
AU6779694A (en) 1994-12-12
TW248601B (es) 1995-06-01

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