CA2013386A1 - Methode et dispositif de correction des erreurs dans les codes de niveau de symbole - Google Patents

Methode et dispositif de correction des erreurs dans les codes de niveau de symbole

Info

Publication number
CA2013386A1
CA2013386A1 CA2013386A CA2013386A CA2013386A1 CA 2013386 A1 CA2013386 A1 CA 2013386A1 CA 2013386 A CA2013386 A CA 2013386A CA 2013386 A CA2013386 A CA 2013386A CA 2013386 A1 CA2013386 A1 CA 2013386A1
Authority
CA
Canada
Prior art keywords
error correction
symbol
symbol level
coding
providing error
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.)
Granted
Application number
CA2013386A
Other languages
English (en)
Other versions
CA2013386C (fr
Inventor
Douglas C. Bossen
Chin L. Chen
Mu Y. Hsiao
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
Publication of CA2013386A1 publication Critical patent/CA2013386A1/fr
Application granted granted Critical
Publication of CA2013386C publication Critical patent/CA2013386C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/07—Arithmetic codes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/14—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • General Physics & Mathematics (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)
  • Character Discrimination (AREA)
CA002013386A 1989-06-23 1990-03-29 Methode et dispositif de correction des erreurs dans les codes de niveau de symbole Expired - Lifetime CA2013386C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/370,935 US5070504A (en) 1989-06-23 1989-06-23 Method and apparatus for providing error correction to symbol level codes
US370,935 1989-06-23

Publications (2)

Publication Number Publication Date
CA2013386A1 true CA2013386A1 (fr) 1990-12-23
CA2013386C CA2013386C (fr) 1994-03-29

Family

ID=23461801

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002013386A Expired - Lifetime CA2013386C (fr) 1989-06-23 1990-03-29 Methode et dispositif de correction des erreurs dans les codes de niveau de symbole

Country Status (5)

Country Link
US (1) US5070504A (fr)
EP (1) EP0405099B1 (fr)
JP (1) JP2567973B2 (fr)
CA (1) CA2013386C (fr)
DE (1) DE69029539T2 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337361C1 (en) * 1990-01-05 2001-05-15 Symbol Technologies Inc Record with encoded data
US5489158A (en) * 1990-01-05 1996-02-06 Symbol Technologies, Inc. Printer system for removable machine readable code
US5349588A (en) * 1992-02-06 1994-09-20 Motorola, Inc. Error detecting method and apparatus for data communications
US5412194A (en) * 1992-03-25 1995-05-02 Storage Technology Corporation Robust coding system
US5479418A (en) * 1992-07-10 1995-12-26 Canon Inc. Error and loss correction in a data base stored on a two dimensional medium and method
US5748807A (en) * 1992-10-09 1998-05-05 Panasonic Technologies, Inc. Method and means for enhancing optical character recognition of printed documents
JPH0757038A (ja) * 1993-08-20 1995-03-03 Nec Corp バーコード読み取りシステム
US5537431A (en) * 1994-06-15 1996-07-16 International Business Machines Corporation Method and apparatus for bar code reading and decoding
US5602382A (en) * 1994-10-31 1997-02-11 Canada Post Corporation Mail piece bar code having a data content identifier
JPH08255233A (ja) * 1995-03-16 1996-10-01 Toshiba Corp バーコード符号化システム
FR2740925A1 (fr) * 1995-11-08 1997-05-09 Canon Kk Procede et dispositif de detection et de correction d'une eventuelle erreur dans une suite de nombres
US6747692B2 (en) 1997-03-28 2004-06-08 Symbol Technologies, Inc. Portable multipurpose recording terminal and portable network server
US5761221A (en) * 1995-12-11 1998-06-02 International Business Machines Corporation Memory implemented error detection and correction code using memory modules
US5691996A (en) * 1995-12-11 1997-11-25 International Business Machines Corporation Memory implemented error detection and correction code with address parity bits
US5768294A (en) * 1995-12-11 1998-06-16 International Business Machines Corporation Memory implemented error detection and correction code capable of detecting errors in fetching data from a wrong address
US8577026B2 (en) 2010-12-29 2013-11-05 Ternarylogic Llc Methods and apparatus in alternate finite field based coders and decoders
US7659839B2 (en) * 2007-08-15 2010-02-09 Ternarylogic Llc Methods and systems for modifying the statistical distribution of symbols in a coded message
US10397287B2 (en) * 2017-03-01 2019-08-27 Microsoft Technology Licensing, Llc Audio data transmission using frequency hopping

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815495A (en) * 1973-03-09 1974-06-11 G Strackbein Modulus 10 numbering machine
US4013997A (en) * 1975-11-17 1977-03-22 Recognition Equipment Incorporated Error detection/correction system
US4414468A (en) * 1981-05-18 1983-11-08 International Business Machines Corporation Systematic error correction in bar code scanner
JPS60142494A (ja) * 1983-12-28 1985-07-27 大日本印刷株式会社 金券類の真偽判別装置
JPS6124473A (ja) * 1984-07-12 1986-02-03 Tokyo Electric Co Ltd バ−コ−ド情報入力確認方法
NL8403323A (nl) * 1984-11-02 1986-06-02 Philips Nv Leesinrichting voor staafkodes.
NL8501460A (nl) * 1985-05-22 1986-12-16 Philips Nv Werkwijze voor het identificeren van voorwerpen die voorzien zijn van een kodeveld met stipkode, inrichting voor het identificeren van zo een stipkode, en produkt voorzien van zo een stipkode.

Also Published As

Publication number Publication date
DE69029539T2 (de) 1997-07-17
JPH0331980A (ja) 1991-02-12
EP0405099A3 (en) 1993-12-22
EP0405099A2 (fr) 1991-01-02
US5070504A (en) 1991-12-03
EP0405099B1 (fr) 1997-01-02
JP2567973B2 (ja) 1996-12-25
CA2013386C (fr) 1994-03-29
DE69029539D1 (de) 1997-02-13

Similar Documents

Publication Publication Date Title
CA2013386A1 (fr) Methode et dispositif de correction des erreurs dans les codes de niveau de symbole
EP1267581A3 (fr) Système de codage et/ou décodage d'images en mouvement
ES2195237T3 (es) Metodo y aparato para decodificar codigos de barras.
KR970700957A (ko) 인코더/디코더 시스템용 콤팩트 소오스 코딩 테이블(Compact Source Coding Tables For Encoder/Decoder System)
KR960016165A (ko) 동화상(動畵像) 부호화 방법(符號化方法) 및 동화상(動畵像) 복호방법(復號方法)
EP1465363A3 (fr) Système et codage orthogonal dans un environnement de télécommunications utilisant des codes orthogonaux et quasi-orthogonaux
TW345782B (en) Method and apparatus for decoding block codes
CA2171886A1 (fr) Systeme de codage de codes a barres a quatre etats
IL118507A0 (en) Optical symbol (bar code) reading systems and devices
EP0566330A3 (fr) Cadage à plusieurs niveaux utilisant une modulation codée en treillis et des codes Reed-Solomon
CA2074595A1 (fr) Methode et appareil de codage orthogonal pour systeme de communication
KR960706146A (ko) 바코드 기호표시법을 이용한 16비트 및 수치데이타 수집장치 및 방법(Apparatus and method for 16-bit and numeric data collection using bar code symbalogies)
ES2169875T3 (es) Procedimiento y aparato para decodificar simbolos de codigos de barras mediante el analisis de la relacion del tamaño de modulos.
KR880012028A (ko) 부호화 복호화 방법
EP0402058A3 (fr) Dispositif de décodage prévisionnel corrigeant des erreurs de code
CA2086941A1 (fr) Protection contre les erreurs pour donnees codees en mots de longueur variable
EP0880284A3 (fr) Correction d'erreur dans un codage de données
EP0229379A3 (fr) Circuit pour coder/décoder des signaux d'image numériques
ATE219307T1 (de) Verfahren und vorrichtung zur decodierung von faltungscodes
AU3027992A (en) System for encoding data presented with a first coding device and for decoding encoded data with a second coding device, and coding device for use in the system
EP0878915A3 (fr) Méthode et dispositif pour la compression et la décompression de données
ATE172806T1 (de) Anzeigesystem für ideographische zeichen
EP0400551A3 (fr) Système de transmission codé avec séquence d'initialisation
WO2003054877A3 (fr) Procede de codage d'un flux de donnees
MX9300902A (es) Metodo y aparato para utilizar codificacion ortogonal en un sistema de comunicacion

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKEX Expiry

Effective date: 20100329