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 symboleInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 4
- 238000012015 optical character recognition Methods 0.000 abstract 1
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; 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
- G06K19/06—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)
- General Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Error Detection And Correction (AREA)
- Detection And Correction Of Errors (AREA)
- Character Discrimination (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US370,935 | 1989-06-23 | ||
US07/370,935 US5070504A (en) | 1989-06-23 | 1989-06-23 | Method and apparatus for providing error correction to symbol level codes |
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)
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 |
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 |
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 |
US7659839B2 (en) * | 2007-08-15 | 2010-02-09 | Ternarylogic Llc | Methods and systems for modifying the statistical distribution of symbols in a coded message |
US8577026B2 (en) | 2010-12-29 | 2013-11-05 | Ternarylogic Llc | Methods and apparatus in alternate finite field based coders and decoders |
US10397287B2 (en) * | 2017-03-01 | 2019-08-27 | Microsoft Technology Licensing, Llc | Audio data transmission using frequency hopping |
Family Cites Families (7)
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. |
-
1989
- 1989-06-23 US US07/370,935 patent/US5070504A/en not_active Expired - Lifetime
-
1990
- 1990-03-29 CA CA002013386A patent/CA2013386C/fr not_active Expired - Lifetime
- 1990-05-10 EP EP90108765A patent/EP0405099B1/fr not_active Expired - Lifetime
- 1990-05-10 DE DE69029539T patent/DE69029539T2/de not_active Expired - Lifetime
- 1990-06-20 JP JP2160068A patent/JP2567973B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0331980A (ja) | 1991-02-12 |
EP0405099A2 (fr) | 1991-01-02 |
JP2567973B2 (ja) | 1996-12-25 |
CA2013386C (fr) | 1994-03-29 |
DE69029539D1 (de) | 1997-02-13 |
US5070504A (en) | 1991-12-03 |
EP0405099A3 (en) | 1993-12-22 |
DE69029539T2 (de) | 1997-07-17 |
EP0405099B1 (fr) | 1997-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 20100329 |