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公开(公告)号：EP0856808A2
公开(公告)日：1998-08-05
申请号：EP97309912.0
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 the invention reads a bar code (7) based on bar-code data obtained by scanning the bar code (7) with light (L2). The method includes the steps of a) obtaining bar-code data, b) obtaining a sum of bar-data widths with respect to a predetermined number of bar data provided in at least one of a preceding portion and a following portion of the bar-code data, c) repeating the steps a) and b) once to obtain another sum, and d) making a comparison of the sum with another sum. The methods further includes a step of accepting the bar-code data as valid data when a result of the comparison satisfies a predetermined condition.
摘要翻译： 本发明的方法基于通过用光（L2）扫描条形码（7）获得的条形码数据来读取条形码（7）。 该方法包括以下步骤：a）获得条形码数据，b）相对于在条形码数据的前一部分和后续部分中的至少一个中提供的预定数量的条形数据获得条形数据宽度之和， 代码数据，c）重复步骤a）和b）一次以获得另一个总和，以及d）对所述和与另一个和进行比较。 所述方法还包括当比较结果满足预定条件时接受条形码数据作为有效数据的步骤。
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公开(公告)号：EP0390162A3
公开(公告)日：1991-01-02
申请号：EP90106055.8
申请日：1990-03-29
申请人： FUJITSU LIMITED
发明人： Kawai, Hiroaki , Sato, Shinichi
IPC分类号： G06K7/14
CPC分类号： G06K7/1434 , G06K7/0166 , G06K7/14 , G06K7/1491 , G06K19/06056
摘要： A second bar code such as an add-on code which comprises only a character bar and is added to the side of the first bar code such as UPC, EAN and JAN and having a center bar and a guard bar can be correctly read out. When the scanning is made from the first bar code side to the second bar code side, a write address produces, when the right guard bar of the first bar code is recognized, a signal which is used to access the data of the second bar code. Conversely, where the scanning is made from the second bar code side to the first bar code side, the write address produces, when the center bar of the first bar code is recognized, a signal which is used to access the second bar code after subjecting to some arithmethic operation. Therefore, the first bar code can be clearly distinguished from the second bar code which is different in the bar code system and the second bar code can be correctly read out.
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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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14.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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16.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：EP0441709A3
公开(公告)日：1992-01-22
申请号：EP91400295.1
申请日：1991-02-07
发明人： Yoshikawa, Yukio , Ishii, Takeshi , Oyama, Yoshihiro , Sasaki, Tatsuo , Takahashi, Tamotsu , Sato, Shinichi , Moriya, Kazumasa , Shinoda, Ichiro , Itoh, Motohiko , Kashiwazaki, Tomoyuki , Kawai, Hiroaki , Watanabe, Mitsuo
CPC分类号： G06K7/10851 , G06K2207/1018 , H01S5/06825 , H01S5/06835
摘要： A semiconductor laser driving circuit has a semiconductor laser (1) for emitting a laser beam according to a drive power. A photodetector (1b) is provided for effecting photo-electric conversion of the laser beam to output a corresponding electric signal. A monitoring circuit (101) is connected for monitoring the electric signal to output a monitor signal indicative of variation in intensity of the laser beam. A controlling signal (102) is connected for comparing the monitor signal with a given reference signal to output a control signal according to difference therebetween. A powering circuit (103) is operative according to the control signal to apply to the semiconductor laser a drive power effective to eliminate the difference. An abnormality detecting circuit is provided for comparing the monitor signal with a given limit signal which is set defferent from the reference signal to detect any abnormality and output a corresponding signal.
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公开(公告)号：EP0390162A2
公开(公告)日：1990-10-03
申请号：EP90106055.8
申请日：1990-03-29
申请人： FUJITSU LIMITED
发明人： Kawai, Hiroaki , Sato, Shinichi
IPC分类号： G06K7/14
CPC分类号： G06K7/1434 , G06K7/0166 , G06K7/14 , G06K7/1491 , G06K19/06056
摘要： A second bar code such as an add-on code which comprises only a character bar and is added to the side of the first bar code such as UPC, EAN and JAN and having a center bar and a guard bar can be correctly read out. When the scanning is made from the first bar code side to the second bar code side, a write address produces, when the right guard bar of the first bar code is recognized, a signal which is used to access the data of the second bar code. Conversely, where the scanning is made from the second bar code side to the first bar code side, the write address produces, when the center bar of the first bar code is recognized, a signal which is used to access the second bar code after subjecting to some arithmethic operation. Therefore, the first bar code can be clearly distinguished from the second bar code which is different in the bar code system and the second bar code can be correctly read out.
摘要翻译： 可以正确地读出第二条形码，例如仅包括字符栏并且被添加到诸如UPC，EAN和JAN的第一条形码的一侧并具有中心条和保护条的附加代码。 当从第一条形码侧到第二条形码侧进行扫描时，当识别到第一条形码的右侧保护条时，写入地址产生用于访问第二条形码数据的信号 。 相反，在从第二条形码侧到第一条形码侧进行扫描的情况下，当识别出第一条形码的中心条时，写入地址产生用于访问第二条形码的信号， 进行一些算术操作。 因此，可以将第一条形码与条形码系统中不同的第二条形码清楚地区分开，并且可以正确读出第二条形码。
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公开(公告)号：EP1727071A3
公开(公告)日：2007-07-11
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.
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公开(公告)号：EP0919946B1
公开(公告)日：2006-08-09
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
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