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公开(公告)号：EP0896291B1
公开(公告)日：2005-09-07
申请号：EP98302707.9
申请日：1998-04-07
申请人： FUJITSU LIMITED
CPC分类号： G06K7/1465 , G06K7/14
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公开(公告)号：EP1450293A3
公开(公告)日：2004-11-10
申请号：EP04250497.7
申请日：2004-01-29
CPC分类号： G06K7/10851 , G06K7/10554 , G06K7/14
摘要： In an optical bar-code reader, an optical scanner (11) optically scans a bar code (1) to obtain optical power of light reflected from white bars and black bars of the bar code (1), a differentiation unit (22) calculates a differential of the optical power to obtain a differential waveform, a dividing unit (23) divides the differential waveform into a positive waveform and a negative waveform, a bar-code correcting unit (24, 25) calculates correct widths of black bars in the bar code from the positive waveform and the negative waveform to create corrected bar-code data, and a converter (28) converts the corrected bar-code data into character data that is an array of numerals and letters.
摘要翻译： 在光学条形码读取器中，光学扫描仪（11）光学扫描条形码（1）以获得从条形码（1）的白条和黑条反射的光的光强度，微分单元（22）计算 用于获得差分波形的光功率的差分，分割单元（23）将差分波形分成正波形和负波形，条形码校正单元（24,25）计算所述差分波形中的黑条的正确宽度 来自正波形和负波形的条形码以生成校正的条形码数据，并且转换器（28）将校正后的条形码数据转换成字符数据，该字符数据是数字和字母的数组。
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3.发明公开
公开(公告)号：EP0896292A3
公开(公告)日：2001-03-14
申请号：EP98302709.5
申请日：1998-04-07
申请人： FUJITSU LIMITED
CPC分类号： G06K7/14
摘要： Demodulated data B containing the whole of a right block and a part of a left block is obtained after demodulated data A containing a start guard bar (SGB) and based on a division reading process has been at first obtained. When demodulated data C containing an end guard bar (EGB) and numerical data of three characters is thereafter obtained, the demodulated data C is aligned with modulus 10-OK data obtained by synthesizing the demodulated data A with the demodulated data B on the basis of the end guard bar (EGB), and compares the tenth through twelfth characters (of the numerical data) of both of the data with each other. As a result of this comparison, if the tenth through twelfth characters (of the numerical data) of both of the data are coincident with each other, an identical character counter is incremented.
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公开(公告)号：EP0919946A3
公开(公告)日：2000-08-30
申请号：EP98304432.2
申请日：1998-06-04
申请人： FUJITSU LIMITED
IPC分类号： G06K7/10
CPC分类号： G06K7/1473 , G06K7/14
摘要： The present invention introduce a bar code reader capable of inferring data coded into one character failing in demodulation when one character can not be demodulated. The CPU demodulates the data obtained by reading bar code for each data character. Concerning the data character failing in demodulation, bar width data for four bars before demodulation is stored in the temporary saving buffer. When 11 data characters are successful in demodulation, the CPU calculates back the modulus 10 check based on the demodulated data corresponding to 11 data characters, and infers a value of the demodulated data corresponding to the data character failing in demodulation. The CPU, when the data character failing in demodulation is contained in the left data block, infers an ODD/EVEN configuration of the demodulated data corresponding to the data character failing in demodulation based on five pieces of demodulated data corresponding to data characters successful in demodulation in the left data block.
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5.发明公开Bar code reader, bar code reading method and computer readable medium 失效Vorrichtung und Verfahren zum Lesen eines Strichkodes und computerlesbares Medium
公开(公告)号：EP0898238A2
公开(公告)日：1999-02-24
申请号：EP98302708.7
申请日：1998-04-07
申请人： FUJITSU LIMITED
发明人： Watanabe, Mitsuo , Iwaguchi, Isao , Satoh,Shinichi, c/o Fujitsu Limited , Kawai, Hiroaki , Itoh, Motohiko
IPC分类号： G06K7/10
CPC分类号： G06K7/10
摘要： A bar code reading method deals, as valid data, with demodulated data obtained by synthesizing demodulated data obtained by reading a first data block A of an upper stage of a bar code (having two column codes structured by arranging WPC codes up and down in two columns) with demodulated data obtained by reading a second data block B of the upper stage, and demodulated data obtained by synthesizing demodulated data obtained by reading a first data block C of a lower stage of the bar code with demodulated data obtained by reading a second data block D of the lower stage, only if both of the demodulated data obtained by reading the first data block A of the upper stage and the demodulated data obtained by reading the first data block C of the lower stage, contain a portion corresponding to data characters of the second data block (B, D), and further only if these sets of demodulated data are different from each other.
摘要翻译： 条形码读取方法作为有效数据处理通过合成通过读取条形码上级的第一数据块A获得的解调数据而获得的解调数据（具有通过在两 列），其具有通过读取上级的第二数据块B而获得的解调数据，以及通过将通过读取条形码的下级的第一数据块C获得的解调数据合成的解调数据与通过读取第二 只有通过读取上级的第一数据块A获得的解调数据和通过读取下级的第一数据块C获得的解调数据都包含对应于数据的部分，则下级的数据块D 第二数据块（B，D）的字符，并且仅当这些解调数据组彼此不同时。
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公开(公告)号：EP1727071A2
公开(公告)日：2006-11-29
申请号：EP06017426.5
申请日：1997-12-09
申请人： FUJITSU LIMITED
IPC分类号： G06K7/14
CPC分类号： G06K7/10851 , G06K7/10574 , G06K7/14 , G06K7/1486
摘要： A method of reading a bar code (7) based on bar-code data obtained by scanning said bar code (7) with light (L2), comprises the steps of: a) obtaining bar-code data; b) obtaining a number as to how many bar data are provided in at least one of a preceding portion and a following portion of said bar-code data; and c) accepting said bar-code data as valid data when said number is smaller than a predetermined number.
摘要翻译： 基于通过用光（L2）扫描所述条形码（7）获得的条形码数据来读取条形码（7）的方法包括以下步骤：a）获得条形码数据; b）获得关于在所述条形码数据的前一部分和后续部分中的至少一个中提供多少条数据的数量; 以及c）当所述数量小于预定数量时，接受所述条形码数据作为有效数据。
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8.发明授权
公开(公告)号：EP0898238B1
公开(公告)日：2005-06-29
申请号：EP98302708.7
申请日：1998-04-07
申请人： FUJITSU LIMITED
IPC分类号： G06K7/10
CPC分类号： G06K7/10
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9.发明公开Bar-code reader, method of reading a bar code and computer product 有权Strichcode-Leser，Methode zum Lesen eines Strichcodes und Computerprodukt
公开(公告)号：EP1450293A2
公开(公告)日：2004-08-25
申请号：EP04250497.7
申请日：2004-01-29
CPC分类号： G06K7/10851 , G06K7/10554 , G06K7/14
摘要： In an optical bar-code reader, an optical scanner (11) optically scans a bar code (1) to obtain optical power of light reflected from white bars and black bars of the bar code (1), a differentiation unit (22) calculates a differential of the optical power to obtain a differential waveform, a dividing unit (23) divides the differential waveform into a positive waveform and a negative waveform, a bar-code correcting unit (24, 25) calculates correct widths of black bars in the bar code from the positive waveform and the negative waveform to create corrected bar-code data, and a converter (28) converts the corrected bar-code data into character data that is an array of numerals and letters.
摘要翻译： 在光学条形码阅读器中，光学扫描器（11）光学扫描条形码（1）以获得从条形码（1）的白条和黑条反射的光的光焦度，微分单元（22）计算 光功率的差分以获得差分波形，分割单元（23）将差分波形分成正波形和负波形，条形码校正单元（24,25）计算正确波形的正确宽度， 来自正波形和负波形的条形码以产生校正的条形码数据，并且转换器（28）将校正后的条形码数据转换为数字和字母数组的字符数据。
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10.发明公开
公开(公告)号：EP0898238A3
公开(公告)日：2002-08-07
申请号：EP98302708.7
申请日：1998-04-07
申请人： FUJITSU LIMITED
发明人： Watanabe, Mitsuo , Iwaguchi, Isao , Satoh,Shinichi, c/o Fujitsu Limited , Kawai, Hiroaki , Itoh, Motohiko
IPC分类号： G06K7/10
CPC分类号： G06K7/10
摘要： A bar code reading method deals, as valid data, with demodulated data obtained by synthesizing demodulated data obtained by reading a first data block A of an upper stage of a bar code (having two column codes structured by arranging WPC codes up and down in two columns) with demodulated data obtained by reading a second data block B of the upper stage, and demodulated data obtained by synthesizing demodulated data obtained by reading a first data block C of a lower stage of the bar code with demodulated data obtained by reading a second data block D of the lower stage, only if both of the demodulated data obtained by reading the first data block A of the upper stage and the demodulated data obtained by reading the first data block C of the lower stage, contain a portion corresponding to data characters of the second data block (B, D), and further only if these sets of demodulated data are different from each other.
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