公开(公告)号：US6000614A

公开(公告)日：1999-12-14

申请号：US996345

申请日：1997-12-22

申请人： Xuhua Yang ,  Masahiro Hara

发明人： Xuhua Yang ,  Masahiro Hara

IPC分类号： G06K7/14 ,  G06K7/10

CPC分类号： G06K7/1473 ,  G06K7/14

摘要： A two-dimensional code reading apparatus uses the image of a reference pattern of a known shape in the two-dimensional code to compute areas, shapes and positions of cells in the image of the two-dimensional code and corrects these computed values using correction values obtained by identifying cells isolated from cells of the same type in at least one direction whenever they appear and extracting their actual boundary coordinates directly from the image data. As a result, even if there is distortion in the image of the two-dimensional a reading scope for each cell to be read is set to a suitable area and the reading position of each cell is determined accurately in correspondence with the distortion and the content of the two-dimensional code is thereby read correctly.

摘要翻译： 二维码读取装置使用二维码中已知形状的参考图案的图像来计算二维码图像中的小区的区域，形状和位置，并使用校正值来校正这些计算值 通过从图像数据直接提取它们的实际边界坐标来识别从至少一个方向上的相同类型的细胞分离出来的细胞。 结果，即使二维图像中的失真将要读取的每个单元的读取范围设置为适当的区域，并且与畸变和内容相对应地精确地确定每个单元的读取位置 的二维码被正确读取。

公开(公告)号：US4516017A

公开(公告)日：1985-05-07

申请号：US458022

申请日：1983-01-14

申请人： Masahiro Hara ,  Atsutoshi Okamoto ,  Toshiyasu Sakai

发明人： Masahiro Hara ,  Atsutoshi Okamoto ,  Toshiyasu Sakai

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10881

摘要： In an optical reading apparatus having an image sensor for converting optically readable information into an electrical signal, a sensor driving circuit is arranged to produce at least two clocks with which two or more groups of optical imaging elements of the image sensor are respectively driven. In one embodiment, the two clocks have a time or phase difference therebetween so that signal charges from one group of the imaging elements are derived at once after signal charges of another group are derived. The derived signal charges are read out in a sequence within a period equal to the time difference. This enables a charging time to be twice or more the time difference providing high sensitivity. Since at least two or more read data can be obtained within a single charging time, high-speed reading is also resulted. In another embodiment, the optical reader is switched so that one of high-speed mode and high-resolution mode is selected. In a further embodiment, the invention is adapted to a reader having an area image sensor.

摘要翻译： 在具有用于将光学可读信息转换为电信号的图像传感器的光学读取装置中，传感器驱动电路被布置成产生分别驱动图像传感器的两组或更多组光学成像元件的至少两个时钟。 在一个实施例中，两个时钟之间具有时间或相位差，使得来自一组成像元件的信号电荷在得到另一组的信号电荷之后立即导出。 导出的信号电荷以等于时间差的周期内的顺序读出。 这使得充电时间是提供高灵敏度的时间差的两倍或更多。 由于在单个充电时间内可以获得至少两个以上的读取数据，因此也产生高速读数。 在另一个实施例中，光学读取器被切换，使得选择高速模式和高分辨率模式中的一个。 在另一实施例中，本发明适用于具有区域图像传感器的读取器。

公开(公告)号：US4488678A

公开(公告)日：1984-12-18

申请号：US384749

申请日：1982-06-03

申请人： Masahiro Hara ,  Atsutoshi Okamoto ,  Toshiyasu Sakai

发明人： Masahiro Hara ,  Atsutoshi Okamoto ,  Toshiyasu Sakai

IPC分类号： G06K7/016 ,  G06K7/10 ,  G11B7/00 ,  G11B7/0033 ,  G06K7/14

CPC分类号： G06K7/10881 ,  G06K7/0166

摘要： A bar code having parallel bars carrying information is divided into a plurality of regions so that each region is detected by a field of vision of an image sensor of a bar code reader. The bars in each region are detected by a scanning operation to store data indicative of the width of each bar into a memory. When scanning of a region is completed, detection of another region follows to store data in the same manner. After all the regions are scanned to obtain their data, these data are combined to produce a combined data. Some superfluous data due to overlapping of two consecutive regions are removed from the combined data. In one embodiment, the superfluous data are removed by using data indicative separation bars provided between the two consecutive regions, while in another embodiment, the superfluous data are removed by using a predetermined value indicative of the actual number of bars of the bar code.

摘要翻译： 具有携带信息的平行条的条形码被划分成多个区域，以便通过条形码阅读器的图像传感器的视场检测每个区域。 通过扫描操作检测每个区域中的条，以将指示每个条的宽度的数据存储到存储器中。 当扫描区域完成时，以相同的方式检测另一区域以存储数据。 在扫描所有区域以获得其数据之后，将这些数据组合以产生组合数据。 从组合数据中删除由于两个连续区域的重叠导致的一些多余数据。 在一个实施例中，通过使用在两个连续区域之间提供的指示分隔杆的数据来去除多余数据，而在另一个实施例中，通过使用指示条形码的实际条数的预定值去除多余的数据。

公开(公告)号：US4408120A

公开(公告)日：1983-10-04

申请号：US352564

申请日：1982-02-26

申请人： Masahiro Hara ,  Toshiyasu Sakai ,  Atsutoshi Okamoto

发明人： Masahiro Hara ,  Toshiyasu Sakai ,  Atsutoshi Okamoto

IPC分类号： G02B26/10 ,  G06K7/10

CPC分类号： G06K7/10722

摘要： A bar code scanner for scanning bar codes having a plurality of parallel bar symbols recorded in different light reflective colors on a record medium. The scanner has a light source, an image sensor comprising a plurality of light responsive elements which are aligned and activated one by one, and diaphragm having an aperture which is longitudinally extending in orthogonal relation with the straight line of the aligned elements.

摘要翻译： 一种用于扫描条形码的条形码扫描器，其具有以不同的光反射颜色记录在记录介质上的多个平行条形符号。 扫描器具有光源，图像传感器包括多个被一个一个对准和激活的光响应元件，以及具有与对准元件的直线正交关系纵向延伸的孔的光阑。

公开(公告)号：US4216014A

公开(公告)日：1980-08-05

申请号：US957809

申请日：1978-11-06

申请人： Kaoru Horiuchi ,  Akio Matsui ,  Masahiro Hara ,  Hiroshi Takahashi

发明人： Kaoru Horiuchi ,  Akio Matsui ,  Masahiro Hara ,  Hiroshi Takahashi

IPC分类号： C22C38/00 ,  C21D6/00 ,  C22C38/44 ,  C22C39/20

CPC分类号： C22C38/44

摘要： Low temperature steel alloys having a high toughness and hardness, consisting essentially of from 0.20 to 0.30 wt % of carbon, from 1.20 to 2.00 wt % of silicon, from 0.30 to 0.80 wt % of manganese, from 1.70 to 2.40 wt % of nickel, from 2.50 to 3.50 wt % of chromium, from 0.30 to 0.55 wt % of molybdenum, and the balance essentially iron.

摘要翻译： 具有高韧性和硬度的低温钢合金基本上由0.20至0.30重量％的碳，1.20至2.00重量％的硅，0.30至0.80重量％的锰，1.70至2.40重量％的镍， 铬的2.50〜3.50重量％，钼的0.30〜0.55重量％，余量基本上为铁。