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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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公开(公告)号：EP1450293B1
公开(公告)日：2009-04-01
申请号：EP04250497.7
申请日：2004-01-29
CPC分类号： G06K7/10851 , G06K7/10554 , G06K7/14
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公开(公告)号：EP1418529B1
公开(公告)日：2005-10-26
申请号：EP03256915.4
申请日：2003-10-31
发明人： Watanabe, Mitsuo , Yamazaki, Kozo , Ishii, Mitsuharu , Ohkawa, Masanori , Iwaguchi, Isao , Miyazawa, Hideo
CPC分类号： G06K7/10851 , G06K2017/0067 , G07G1/0045 , G07G1/14
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4.发明公开Method and apparatus for optically reading identification information from commodity 审中-公开Verfahren und Vorrichtung zum optischen Lesen von Identifikationsinformationen einer Ware
公开(公告)号：EP1793327A1
公开(公告)日：2007-06-06
申请号：EP06110536.7
申请日：2006-02-28
IPC分类号： G06K7/10
CPC分类号： G06K7/10693
摘要： A scan beam formed by the optical scanning unit is divided by the first scan beam dividing unit and the second scan beam dividing unit. The first scan beam dividing unit and the second scan beam dividing unit are disposed in such a manner that the scan beams divided by the first scan beam dividing unit traverse a rotation axis of the optical scanning unit before reaching the second scan beam dividing unit.
摘要翻译： 由光学扫描单元形成的扫描光束被第一扫描光束分割单元和第二扫描光束分割单元划分。 第一扫描光束分割单元和第二扫描光束分割单元被布置成使得由第一扫描光束分割单元分割的扫描光束在到达第二扫描光束分割单元之前穿过光学扫描单元的旋转轴。
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5.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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6.发明公开
公开(公告)号：EP1450292A1
公开(公告)日：2004-08-25
申请号：EP04250495.1
申请日：2004-01-29
CPC分类号： G06K7/1452 , G06K7/10554 , G06K7/14
摘要： A bar-code reader has an optical scanner (2) which optically scans a bar code (1) to obtain signal strength of light reflected from black bars and white bars of the bar code (1). An extracting unit (5a) then extracts edge data, which includes a plurality of edges and the signal strength of which changes corresponding to a change from a black bar to a white bar and vice versa, and an edge-emphasizing unit (5f) emphasizes edge data of an edge that satisfies a predetermined condition. A judgment unit (5h) is then used to make a ternary judgment of each edge based on the edge emphasized to obtain a ternary result, and a decoder (5i) decodes bar-code characters from the ternary result.
摘要翻译： 条形码阅读器具有光学扫描器（2），其光学扫描条形码（1）以获得从条形码（1）的黑条和白条反射的光的信号强度。 然后提取单元（5a）提取边缘数据，其包括多个边缘，并且其信号强度对应于从黑色条到白色条的改变并且反之亦然改变，并且边缘加强单元（5f）强调 满足预定条件的边缘的边缘数据。 接着使用判断单元（5h）基于强调的边缘对每个边缘进行三元判断以获得三元结果，并且解码器（5i）从三元结果中解码条码字符。
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公开(公告)号：EP1418529A1
公开(公告)日：2004-05-12
申请号：EP03256915.4
申请日：2003-10-31
发明人： Watanabe, Mitsuo , Yamazaki, Kozo , Ishii, Mitsuharu , Ohkawa, Masanori , Iwaguchi, Isao , Miyazawa, Hideo
CPC分类号： G06K7/10851 , G06K2017/0067 , G07G1/0045 , G07G1/14
摘要： A bar code reader (100) is arranged to communicate with a host apparatus (200). The bar code reader includes a read unit that reads a bar code (50) attached to an article, and outputs bar code information corresponding to the read bar code; a term information acquisition unit that acquires term information included in the bar code information; and a term expiration check unit that checks whether the shelf life of the article has expired based on the term information. A notification unit notifies that the shelf life of the article has expired upon determination by the term expiration check unit to the host apparatus (200). By performing its own expiration check, the bar code reader reduces the load on the host apparatus.
摘要翻译： 条形码读取器（100）被布置成与主机设备（200）通信。 条形码读取器包括：读取单元，读取附着在物品上的条形码（50），并输出与所读取的条形码对应的条形码信息; 术语信息获取单元，其获取包括在条形码信息中的术语信息; 以及术语到期检查单元，其基于所述术语信息来检查所述物品的保质期是否已经过期。 通知单元通知由主机设备（200）通过期限检查单元确定的物品的保质期已到期。 通过执行自己的到期检查，条形码读取器减少主机设备的负载。
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公开(公告)号：EP0779591A3
公开(公告)日：1999-07-28
申请号：EP96309129.3
申请日：1996-12-13
申请人： FUJITSU LIMITED
IPC分类号： G06K7/10
CPC分类号： G06K7/1096 , G06K7/10623 , G06K7/10693 , G06K7/10702 , G06K7/10871 , G06K2007/10514 , Y10S359/90
摘要： A bar code reader has two reading windows, i.e., a bottom window (5) and a side window (4). An increased number of scanning lines are used for constituting scanning patterns for scanning bar codes, and the arrangement of the optical system is contrived to decrease the whole size of the bar code reader and, particularly, to decrease the depth of the bar code reader. A source (21) of laser light, a splitter (22) for splitting the laser beam emitted from the laser light source into two, a reflection mirror (23, 24) for transmitting one beam from the splitter to a polygon mirror (25) which rotates to scan the incident laser beam, a mirror system (26) for emitting the beam reflected by the polygon mirror through the reading window (5), and a focusing member (30) for focusing the beam reflected by the bar code onto a detector (28) that detects the beam reflected by the bar code, are arranged on the same line in the bar code reader. By using a concave mirror (30), furthermore, the beam reflected by the bar code is folded back to one detector (28). The light-receiving surface of another detector (29) is faced downward to receive the beam reflected by the bar code through a Fresnel lens (32) and mirror (33), thereby to decrease the depth of the bar code reader. Furthermore, the beam passage from the reflection mirror goes through the lower surface of the polygon mirror intersecting the axis of rotation of the polygon mirror.
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公开(公告)号：EP0578499A2
公开(公告)日：1994-01-12
申请号：EP93305360.5
申请日：1993-07-08
申请人： FUJITSU LIMITED
发明人： Takashima, Yuichirou , Yamazaki, Koza , Ishii, Mitsuharu , Kumagai, Toshimitsu , Ohkawa, Masanori
CPC分类号： G06K7/10653 , G02B6/4204 , G06K7/10643
摘要： A laser diode module includes a laser diode emitting a laser beam, and a lens for collimating the laser beam. The lens is tilted with respect to an optical axis along which the laser beam is propagated.
摘要翻译： 激光二极管模块包括发射激光束的激光二极管和用于准直激光束的透镜。 透镜相对于传播激光束的光轴倾斜。
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10.发明授权Optical scanner code reader and bar code reader having increased degree of freedom in placement of optical parts 有权光学扫描代码读取器和条码读取器与自由的光学部件的定位的程度增加
公开(公告)号：EP0996077B1
公开(公告)日：2007-09-26
申请号：EP99120078.3
申请日：1999-10-20
申请人： FUJITSU LIMITED
CPC分类号： G06K7/1096 , G06K7/10574 , G06K7/10623
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