公开(公告)号：US07055748B2

公开(公告)日：2006-06-06

申请号：US11067342

申请日：2005-02-28

申请人： Hideo Miyazawa ,  Isao Iwaguchi ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuo Watanabe ,  Takashi Kaku

发明人： Hideo Miyazawa ,  Isao Iwaguchi ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuo Watanabe ,  Takashi Kaku

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/14

摘要： A signal fetching unit fetches a signal that includes binarized information disposed with a predetermined information length, from a barcode. A module-frequency extracting unit extracts a module frequency equivalent to a basic unit length in the binarized information from the signal. A frequency shifting unit shifts a frequency to 0 Hz based on the module frequency for the signal. A low pass filter passes a low frequency component included in an output signal from the frequency shifting unit. A module-point extracting unit extracts a module point synchronized with the signal and that has the module frequency, based on the module frequency extracted and an output signal of the low pass filter. A demodulating unit demodulates a character of the barcode based on the module point extracted.

摘要翻译： 信号取出单元从条形码获取包含以预定信息长度布置的二值化信息的信号。 模块频率提取单元从信号中提取与二值化信息中的基本单位长度相当的模块频率。 频移单元根据信号的模块频率将频率移动到0Hz。 低通滤波器通过来自频移单元的输出信号中包含的低频分量。 模块点提取单元基于提取的模块频率和低通滤波器的输出信号，提取与信号同步的模块点，并具有模块频率。 解调单元根据提取的模块点解调条形码的字符。

公开(公告)号：US06978937B2

公开(公告)日：2005-12-27

申请号：US10622469

申请日：2003-07-21

申请人： Isao Iwaguchi ,  Takashi Kaku ,  Hiroyasu Murata ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuo Watanabe ,  Hideo Miyazawa

发明人： Isao Iwaguchi ,  Takashi Kaku ,  Hiroyasu Murata ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuo Watanabe ,  Hideo Miyazawa

IPC分类号： G06K7/14 ,  G06K19/06 ,  G06K7/10

CPC分类号： G06K7/14

摘要： A method of reading information which makes it possible to suppress the size of hardware and a price thereof and to improve an S/N ratio of a reading signal and reading resolution, wherein even if depth of field for reading is enlarged or a concave/convex portion or a blurred portion is left on the reading face, reading precision can be improved. The method includes steps of acquiring from a medium 1, a signal containing binary digit information having a predetermined information length and a one-dimensional arrangement, extracting information concerning an elemental unit length of the information length of the binary digit information from the acquired signal, and reading a ratio of the binary digit information to the information length based on the extracted elemental unit length information.

摘要翻译： 一种读取信息的方法，其可以抑制硬件的尺寸和价格，并且提高读取信号和读取分辨率的S / N比，其中即使用于读取的景深或扩大的凹凸 部分或模糊部分留在读取面上，可以提高读取精度。 该方法包括以下步骤：从介质1获取包含具有预定信息长度的二进制数字信息和一维排列的信号，从获取的信号中提取关于二进制数字信息的信息长度的元素单位长度的信息， 以及基于所提取的基本单位长度信息读取二进制数字信息与信息长度的比率。

公开(公告)号：US20050139676A1

公开(公告)日：2005-06-30

申请号：US11067342

申请日：2005-02-28

申请人： Hideo Miyazawa ,  Isao Iwaguchi ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuo Watanabe ,  Takashi Kaku

发明人： Hideo Miyazawa ,  Isao Iwaguchi ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuo Watanabe ,  Takashi Kaku

IPC分类号： G06K7/10 ,  G06K7/14 ,  G02B26/10 ,  G06K9/22 ,  G06K19/06

CPC分类号： G06K7/10851 ,  G06K7/14

摘要： A signal fetching unit fetches a signal that includes binarized information disposed with a predetermined information length, from a barcode. A module-frequency extracting unit extracts a module frequency equivalent to a basic unit length in the binarized information from the signal. A frequency shifting unit shifts a frequency to 0 Hz based on the module frequency for the signal. A low pass filter passes a low frequency component included in an output signal from the frequency shifting unit. A module-point extracting unit extracts a module point synchronized with the signal and that has the module frequency, based on the module frequency extracted and an output signal of the low pass filter. A demodulating unit demodulates a character of the barcode based on the module point extracted.

摘要翻译： 信号取出单元从条形码获取包含以预定信息长度布置的二值化信息的信号。 模块频率提取单元从信号中提取与二值化信息中的基本单位长度相当的模块频率。 频移单元根据信号的模块频率将频率移动到0Hz。 低通滤波器通过来自频移单元的输出信号中包含的低频分量。 模块点提取单元基于提取的模块频率和低通滤波器的输出信号，提取与信号同步的模块点，并具有模块频率。 解调单元根据提取的模块点解调条形码的字符。

公开(公告)号：US07431214B2

公开(公告)日：2008-10-07

申请号：US10751885

申请日：2004-01-07

申请人： Isao Iwaguchi ,  Hideo Miyazawa ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

发明人： Isao Iwaguchi ,  Hideo Miyazawa ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

IPC分类号： G06K5/04

CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K7/1491

摘要： A plurality of bar-code candidate areas are calculated from scan data that is acquired by scanning a bar code. Feature data, which represents a specific feature, is calculated for each of the bar-code candidate areas. The bar-code candidate areas are evaluated based on their feature data to thereby determine a bar-code candidate area that has the highest probability of being a bar code. The specific feature includes any one or more of length of a differential waveform, average energy, and number of peaks in the differential waveform.

摘要翻译： 从通过扫描条形码获取的扫描数据计算多个条形码候选区域。 针对每个条形码候选区域计算代表特定特征的特征数据。 根据其特征数据对条形码候选区域进行评价，从而确定条形码候选区域的条形码候选面积最高。 具体特征包括差分波形的长度，平均能量和差分波形中的峰值数量中的任何一个或多个。

公开(公告)号：US07222032B2

公开(公告)日：2007-05-22

申请号：US10745610

申请日：2003-12-29

申请人： Mitsuo Watanabe ,  Isao Iwaguchi ,  Hideo Miyazawa ,  Kozo Yamazaki ,  Masanori Ohkawa

发明人： Mitsuo Watanabe ,  Isao Iwaguchi ,  Hideo Miyazawa ,  Kozo Yamazaki ,  Masanori Ohkawa

IPC分类号： G01R19/00 ,  G06F11/30

CPC分类号： H04B10/564 ,  H01S5/0021 ,  H01S5/042 ,  H01S5/0683

摘要： A time for replacement of a laser diode is decided based on a value of operating current of the laser diode and a value of intensity of laser light output from the laser diode.

摘要翻译： 基于激光二极管的工作电流的值和从激光二极管输出的激光的强度值来决定激光二极管的更换时间。

公开(公告)号：US07051936B2

公开(公告)日：2006-05-30

申请号：US10694274

申请日：2003-10-29

申请人： Mitsuo Watanabe ,  Kozo Yamazaki ,  Mitsuharu Ishii ,  Masanori Ohkawa ,  Isao Iwaguchi ,  Hideo Miyazawa

发明人： Mitsuo Watanabe ,  Kozo Yamazaki ,  Mitsuharu Ishii ,  Masanori Ohkawa ,  Isao Iwaguchi ,  Hideo Miyazawa

IPC分类号： G06K15/00 ,  G06K7/10

CPC分类号： G06K7/10851 ,  G06K2017/0067 ,  G07G1/0045 ,  G07G1/14

摘要： A bar code reader has an arrangement to communicate with a host apparatus. The bar code reader includes a read unit that reads a bar code 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 term of the article has expired based on the term information. A notification unit notifies that the term of the article has expired upon determination by the term expiration check unit that the term of the article has expired.

摘要翻译： 条形码读取器具有与主机设备通信的布置。 条形码读取器包括：读取单元，读取附在物品上的条形码，并输出与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，其基于术语信息检查文章的术语是否已经过期。 通知单位通知文章的期限在期限检查单元确定文章的期限已经到期时已过期。

公开(公告)号：US07021545B2

公开(公告)日：2006-04-04

申请号：US10763338

申请日：2004-01-26

申请人： Isao Iwaguchi ,  Hideo Miyazawa ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

发明人： Isao Iwaguchi ,  Hideo Miyazawa ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10554 ,  G06K7/14

摘要： In an optical bar-code reader, an optical scanner optically scans a bar code to obtain optical power of light reflected from white bars and black bars of the bar code, a differentiation unit calculates a differential of the optical power to obtain a differential waveform, a dividing unit divides the differential waveform into a positive waveform and a negative waveform, a bar-code correcting unit 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 converts the corrected bar-code data into character data that is an array of numerals and alphabets.

摘要翻译： 在光学条形码读取器中，光学扫描器光学扫描条形码以获得从条形码的白条和黑条反射的光的光功率，微分单元计算光功率的差分以获得差分波形， 分割单元将差分波形分成正波形和负波形，条形码校正单元从正波形和负波形计算条形码中的黑条的正确宽度，以产生校正条形码数据，以及 转换器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。

公开(公告)号：US07007847B2

公开(公告)日：2006-03-07

申请号：US10750876

申请日：2004-01-05

申请人： Isao Iwaguchi ,  Hideo Miyazawa ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

发明人： Isao Iwaguchi ,  Hideo Miyazawa ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

IPC分类号： G06K7/10 ,  G06K19/06

CPC分类号： G06K7/10851 ,  G06K7/14

摘要： A signal obtained by optically scanning a bar code is subjected to differentiation to obtain differential data. Peak-to-peak distances are calculated from the differential data. When a peak-to-peak ΔTx distance is y times of a basic width, frequency f(x,y) will be, f(x,y)=y/ΔTx. A frequency map is prepared from the frequencies calculated. Transition routes in which one frequency each is selected from each of the peak-to-peak distances, are formed. A transition route for which an error in frequencies is the least is taken as the most suitable transition route. An average of the frequencies included in the transition route is taken as a frequency f0 of the basic width.

摘要翻译： 将通过光学扫描条形码获得的信号进行微分，得到差分数据。 从差分数据计算峰间距离。 当峰 - 峰DeltaTx距离为基本宽度的y倍时，频率f（x，y）将为f（x，y）= y / DeltaTx。 从所计算的频率准备频率图。 形成了从每个峰到峰距离中选择一个频率的转换路线。 将频率误差最小的转换路径作为最适合的转换路由。 将过渡路径中包括的频率的平均值作为基本宽度的频率f 0。

公开(公告)号：US07137559B2

公开(公告)日：2006-11-21

申请号：US10748232

申请日：2003-12-31

申请人： Mitsuo Watanabe ,  Isao Iwaguchi ,  Hideo Miyazawa ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuharu Ishii

发明人： Mitsuo Watanabe ,  Isao Iwaguchi ,  Hideo Miyazawa ,  Kozo Yamazaki ,  Masanori Ohkawa ,  Mitsuharu Ishii

IPC分类号： G06K7/10

CPC分类号： G06K7/10 ,  G06K2207/1017

摘要： Management information, which is information about hardware in or software installed in the bar-code reader, is stored in a storage unit in the bar-code reader. The management information may be acquired from an external unit or read from a bar code.

摘要翻译： 作为条形码阅读器中安装的硬件或软件的信息的管理信息被存储在条形码读取器中的存储单元中。 可以从外部单元获取管理信息或从条形码读取。

公开(公告)号：US07077322B2

公开(公告)日：2006-07-18

申请号：US10748238

申请日：2003-12-31

申请人： Hideo Miyazawa ,  Isao Iwaguchi ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

发明人： Hideo Miyazawa ,  Isao Iwaguchi ,  Mitsuo Watanabe ,  Kozo Yamazaki ,  Masanori Ohkawa

IPC分类号： G06K7/10

CPC分类号： G06K7/1452 ,  G06K7/10554 ,  G06K7/14

摘要： An extractor extracts a part that is apparently a bar-code signal from a signal that is subjected to opto-electric conversion. A narrow-band differential processor forms a waveform of an edge by differentiating by using a module frequency. The module point extractor extracts the module point from the waveform. The maximum likelihood judgment processor 5f performs ternarizing based on a maximum likelihood method by using broader information.

摘要翻译： 提取器从经受光电转换的信号中提取显然是条形码信号的部分。 窄带差分处理器通过使用模块频率进行微分来形成边缘的波形。 模块点提取器从波形中提取模块点。 最大似然判定处理器5f通过使用更广泛的信息，基于最大似然法进行三值化。