公开(公告)号：US06450405B1

公开(公告)日：2002-09-17

申请号：US09453572

申请日：1999-12-02

申请人： Isao Iwaguchi ,  Hiroaki Kawai ,  Mitsuo Watanabe ,  Kozo Yamazaki

发明人： Isao Iwaguchi ,  Hiroaki Kawai ,  Mitsuo Watanabe ,  Kozo Yamazaki

IPC分类号： G02B2610

CPC分类号： G06K7/10851

摘要： A differentiation signal DF differentiated by a differentiation unit is inputted to a slice level generation unit and to comparators. A first peak-hold circuit and a voltage division circuit generate a slice level having a slice ratio SLR that is constant to a peak value VDF of the differentiation signal DF. A second peak-hold circuit generates a slice level the slice ratio SLR of which changes in accordance with the peak value VDF. The slice level generation unit outputs their synthetic slice level SLL, which is compared by the comparators with the level of the differentiation signal DF, outputting thereby binarized signals W-GATE and B-GATE. When the level of the differentiation signal DF is high, the slice level SLL approaches the peak value VDF. Therefore, noise components contained in the differentiation signal DF cannot exceed the slice level SLL. When the level of the differentiation signal DF is low, the slice level SLL has a constant ratio to the peak value VDF. Consequently, the peak value of the amplitude of the differentiation signal DF can be detected reliably.

摘要翻译： 由微分单元区分的微分信号DF被输入到限幅电平生成单元和比较器。 第一峰值保持电路和分压电路产生具有恒定到微分信号DF的峰值VDF的限幅比SLR的限幅电平。 第二峰值保持电路产生切片电平，其切片比SLR根据峰值VDF而变化。 限幅电平生成单元输出合成限幅电平SLL，其由比较器与微分信号DF的电平进行比较，从而输出二进制化信号W-GATE和B-GATE。 当微分信号DF的电平高时，限幅电平SLL接近峰值VDF。 因此，差分信号DF中包含的噪声分量不能超过限幅电平SLL。 当微分信号DF的电平低时，限幅电平SLL与峰值VDF具有恒定的比率。 因此，可以可靠地检测微分信号DF的振幅的峰值。

公开(公告)号：US20070119936A1

公开(公告)日：2007-05-31

申请号：US11368463

申请日：2006-03-07

申请人： Masanori Ohkawa ,  Mitsuharu Ishii ,  Mitsuo Watanabe ,  Masakazu Yokota ,  Shunji Shimada ,  Taku Ando

发明人： Masanori Ohkawa ,  Mitsuharu Ishii ,  Mitsuo Watanabe ,  Masakazu Yokota ,  Shunji Shimada ,  Taku Ando

IPC分类号： G06K7/10

CPC分类号： G06K7/10

摘要： A barcode reader outputs a beep sound upon successfully reading a barcode. The barcode reader includes separate buttons for changing an output volume level and output tine level of the beep sound. The buttons are provided on a surface of the barcode reader.

摘要翻译： 条形码读取器在成功读取条形码后会输出哔声。 条形码读取器包括单独的按钮，用于改变输出音量水平并输出蜂鸣音的尖音。 按钮设置在条形码读取器的表面上。

公开(公告)号：US20070119934A1

公开(公告)日：2007-05-31

申请号：US11362234

申请日：2006-02-27

申请人： Masanori Ohkawa ,  Mitsuharu Ishii ,  Mitsuo Watanabe ,  Masakazu Yokota ,  Shunji Shimada

发明人： Masanori Ohkawa ,  Mitsuharu Ishii ,  Mitsuo Watanabe ,  Masakazu Yokota ,  Shunji Shimada

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划分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。

公开(公告)号：US06619548B1

公开(公告)日：2003-09-16

申请号：US09598702

申请日：2000-06-21

申请人： Motohiko Itoh ,  Shinichi Satoh ,  Mitsuo Watanabe ,  Hiroaki Kawai ,  Isao Iwaguchi

发明人： Motohiko Itoh ,  Shinichi Satoh ,  Mitsuo Watanabe ,  Hiroaki Kawai ,  Isao Iwaguchi

IPC分类号： G06K710

CPC分类号： G06K7/10851 ,  G06K7/10574 ,  G06K7/14 ,  G06K7/1486

摘要： A method of the invention reads a bar code based on bar-code data obtained by scanning the bar code with light. 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扫描条形码而获得的条形码数据来读取条形码。 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。

公开(公告)号：US06222178B1

公开(公告)日：2001-04-24

申请号：US09231841

申请日：1999-01-15

申请人： Hiroaki Kawai ,  Shinichi Satoh ,  Motohiko Itoh ,  Mitsuo Watanabe ,  Isao Iwaguchi ,  Ichiro Shinoda

发明人： Hiroaki Kawai ,  Shinichi Satoh ,  Motohiko Itoh ,  Mitsuo Watanabe ,  Isao Iwaguchi ,  Ichiro Shinoda

IPC分类号： H01J4014

CPC分类号： G06K7/10584

摘要： A proximity sensor receives light beams reflected from a goods. A proximity sensor control unit determines that the goods exists when a light quantity of the reflected light received by the proximity sensor exceeds a determination threshold value. The determination threshold value increases as elapsed time since the bar code was read last time becomes longer, and, as a result, a detection sensitivity decreases. A CPU restores a duty of irradiation of the laser beam back to 100% and resumes rotations of a motor for driving an operation optical system when the proximity sensor control unit determines that the goods exists.

摘要翻译： 接近传感器接收从商品反射的光束。 当接近传感器接收的反射光的光量超过确定阈值时，接近传感器控制单元确定商品存在。 判定阈值随着从上次读取条形码的时间变长而增加，结果检测灵敏度降低。 当接近传感器控制单元确定存在商品时，CPU将激光束照射的占空比恢复到100％，并恢复用于驱动操作光学系统的电动机的旋转。

公开(公告)号：US06189796B1

公开(公告)日：2001-02-20

申请号：US09356024

申请日：1999-07-16

申请人： Motohiko Itoh ,  Shinichi Satoh ,  Mitsuo Watanabe ,  Hiroaki Kawai ,  Isao Iwaguchi

发明人： Motohiko Itoh ,  Shinichi Satoh ,  Mitsuo Watanabe ,  Hiroaki Kawai ,  Isao Iwaguchi

IPC分类号： G06K710

CPC分类号： G06K7/10851 ,  G06K7/10574 ,  G06K7/14 ,  G06K7/1486

摘要： A method and apparatus for selectively reading a bar code in accordance with first and second scan patterns emitted by a scan unit. A button is manually operable by an operator for switching from the first scan pattern to a second scan pattern. A controller controls the scanning unit to switch from the first scan pattern to the second scan pattern, responsive to operation of the button by the operator and, a predetermined time after relative of the button, to switch from the second scan pattern to the first scan pattern.

摘要翻译： 一种用于根据由扫描单元发射的第一和第二扫描图案选择性地读取条形码的方法和装置。 按钮可由操作者手动操作，用于从第一扫描图案切换到第二扫描图案。 控制器控制扫描单元从第一扫描图案切换到第二扫描图案，响应于操作者按钮的操作，以及相对于按钮之后的预定时间，从第二扫描图案切换到第一扫描 模式。

公开(公告)号：US6145744A

公开(公告)日：2000-11-14

申请号：US356025

申请日：1999-07-16

申请人： Motohiko Itoh ,  Shinichi Satoh ,  Mitsuo Watanabe ,  Hiroaki Kawai ,  Isao Iwaguchi

发明人： Motohiko Itoh ,  Shinichi Satoh ,  Mitsuo Watanabe ,  Hiroaki Kawai ,  Isao Iwaguchi

IPC分类号： G06K7/00 ,  G06K7/10 ,  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 based on bar-code data obtained by scanning the bar code with light. 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.

公开(公告)号：US6095420A

公开(公告)日：2000-08-01

申请号：US771254

申请日：1996-12-20

申请人： Hiroaki Kawai ,  Shinichi Sato ,  Motohiko Itoh ,  Mitsuo Watanabe ,  Isao Iwaguchi

发明人： Hiroaki Kawai ,  Shinichi Sato ,  Motohiko Itoh ,  Mitsuo Watanabe ,  Isao Iwaguchi

IPC分类号： G06K7/00 ,  G06K7/10 ,  G06K7/14

CPC分类号： G06K7/1465 ,  G06K7/14 ,  G06K7/1486

摘要： A bar code reader decodes a bar code in different directions if the bar code contains special characters whose bar widths have been corrected. The bar code reader compares the decoded results in the different directions with each other, to improve the bar code reading reliability. If the decoded results agree with each other, the results are accepted, and if not, they are discarded.

摘要翻译： 如果条形码包含已经更正了条宽的特殊字符，则条形码阅读器将解码不同方向的条形码。 条形码读取器将不同方向的解码结果彼此进行比较，以提高条形码读取的可靠性。 如果解码结果彼此一致，则结果被接受，如果不是，则将被丢弃。

公开(公告)号：US6032862A

公开(公告)日：2000-03-07

申请号：US69946

申请日：1998-04-30

申请人： Mitsuo Watanabe ,  Motohiko Itoh ,  Hiroaki Kawai ,  Isao Iwaguchi ,  Shinichi Sato

发明人： Mitsuo Watanabe ,  Motohiko Itoh ,  Hiroaki Kawai ,  Isao Iwaguchi ,  Shinichi Sato

IPC分类号： G06K7/00 ,  G06K7/10 ,  G06K7/14

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.

摘要翻译： 本发明引入一种条形码阅读器，当一个字符不能被解调时，能够将编码成一个字符的解码失败的数据推断出来。 CPU解调通过读取每个数据字符的条形码获得的数据。 关于解调中的数据字符失败，解调之前的四个条的条宽数据被存储在临时保存缓冲器中。 当11个数据字符解调成功时，CPU根据与11个数据字符相对应的解调数据，计算出10次模数，并推断与数据字符对应的数据字符解调失败的值。 当解调中的数据字符包含在左数据块中时，CPU根据对应于在解调中成功的数据字符的五个解调数据来推测与解调中的数据字符相对应的解调数据的ODD / EVEN配置 在左数据块中。

公开(公告)号：US6006992A

公开(公告)日：1999-12-28

申请号：US45899

申请日：1998-03-23

申请人： Mitsuo Watanabe ,  Isao Iwaguchi ,  Shinichi Sato ,  Hiroaki Kawai ,  Motohiko Itoh

发明人： Mitsuo Watanabe ,  Isao Iwaguchi ,  Shinichi Sato ,  Hiroaki Kawai ,  Motohiko Itoh

IPC分类号： G06K7/00 ,  G06K7/10

CPC分类号： G06K7/10

摘要： A CPU deals, as valid data, with demodulated data obtained by synthesizing demodulated data obtained by reading a first data block of an upper stage with demodulated data obtained by reading a second data block of the upper stage, and demodulated data obtained by synthesizing demodulated data obtained by reading a first data block of a lower stage with demodulated data obtained by reading a second data block of the lower stage, as far as both of the demodulated data obtained by reading the first data block of the upper stage of two column codes structured by arranging WPC codes up and down at two columns and the demodulated data obtained by reading the first data block of the lower stage, contain a portion corresponding to data characters of the second data block, and as far as these sets of demodulated data are different from each other.

摘要翻译： 通过合成通过读取上级的第一数据块获得的解调数据而获得的解调数据获得的解调数据，以及通过合成解调数据获得的解调数据，作为有效数据， 通过读取下级的第二数据块获得的解调数据读取下级的第一数据块，只要通过读取两列列码的上级的第一数据块获得的两个解调数据结构化 通过在两列上下配置WPC代码，并且通过读取下级的第一数据块而获得的解调数据包含对应于第二数据块的数据字符的部分，并且只要这些解调数据组不同 从彼此。