公开(公告)号：US06293466B1

公开(公告)日：2001-09-25

申请号：US09007146

申请日：1998-01-14

申请人： Mikio Fujita ,  Atsuharu Yamamoto ,  Toyoki Kawahara ,  Kunio Yoshida ,  Toru Asano ,  Shigeo Komizo

发明人： Mikio Fujita ,  Atsuharu Yamamoto ,  Toyoki Kawahara ,  Kunio Yoshida ,  Toru Asano ,  Shigeo Komizo

IPC分类号： G06K710

CPC分类号： G06K7/14

摘要： An image input section enters a document image including a bar code, and converts the document image into a binary image. A small pattern removing section removes small patterns from a binary image sent from the input section. A labeling section separates the binary image into labeled regions and calculates the feature quantity including a center position of each labeled region. A region detecting section makes a group of labeled regions spaced at a predetermined positional relationship based on their feature quantities and detects a bar code candidate region. A decoding section decodes the bar code based on the feature quantity involved in the bar code candidate region.

摘要翻译： 图像输入部分输入包括条形码的文档图像，并将文档图像转换为二进制图像。 小图案去除部分从输入部分发送的二进制图像中移除小图案。 标记部分将二进制图像分成标记区域，并计算包括每个标记区域的中心位置的特征量。 区域检测部分基于其特征量使一组标记区域以预定的位置关系间隔，并且检测条形码候选区域。 解码部分根据条形码候选区域中涉及的特征量对条形码进行解码。

公开(公告)号：US06070800A

公开(公告)日：2000-06-06

申请号：US987110

申请日：1997-12-08

申请人： Mikio Fujita ,  Atsuharu Yamamoto ,  Toyoki Kawahara ,  Kuinio Yoshida ,  Toru Asano ,  Shigeo Komizo

发明人： Mikio Fujita ,  Atsuharu Yamamoto ,  Toyoki Kawahara ,  Kuinio Yoshida ,  Toru Asano ,  Shigeo Komizo

IPC分类号： G06K7/00 ,  G06K7/10 ,  G06K7/14 ,  G02B7/08 ,  G06K15/12

CPC分类号： G06K7/1443 ,  G06K7/14 ,  G06K7/1456

摘要： An image input section enters a document image including a bar code, and converts the document image into a binary image. An image memory section memorizes the binary image supplied from the image input section. A mask judging section performs a scanning operation using an M.times.M pixel window for detecting an alternate pattern from the binary image supplied from the image input section. A small pattern removing section removes small patterns from a binary image sent from the mask judging section. An expanding section expands a pattern involved in a binary image by an amount equivalent to k1 pixels when this binary image is sent from the small pattern removing section. A contracting section contracts a pattern involved in a binary image by an amount equivalent to k2 pixels when this binary image is sent from the expanding section. A region detecting section obtains the feature quantity of each pattern involved in a binary image sent from the contracting section, and detects a bar code candidate region based on the detected feature quantity. And, a decoding section decodes a detected bar code by reading a specific image region from the image memory section when the specific image region corresponds to the bar code candidate region detected by the region detecting section.

摘要翻译： 图像输入部分输入包括条形码的文档图像，并将文档图像转换为二进制图像。 图像存储部存储从图像输入部提供的二值图像。 掩模判定部分使用从图像输入部分提供的二进制图像中检测替代图案的MxM像素窗口进行扫描操作。 小图案去除部分从掩模判断部分发送的二进制图像中去除小图案。 当从小图案去除部分发送二进制图像时，扩展部分将涉及二进制图像的图案扩展相当于k1个像素的量。 当从扩展部分发送二进制图像时，收缩部分将涉及二进制图像的模式收合相当于k2个像素的量。 区域检测部分获得从收缩部分发送的二进制图像中涉及的每个模式的特征量，并且基于检测到的特征量检测条形码候选区域。 并且，当特定图像区域对应于由区域检测部分检测到的条形码候选区域时，解码部分通过从图像存储部分读取特定图像区域来解码检测到的条形码。

公开(公告)号：US5134272A

公开(公告)日：1992-07-28

申请号：US379123

申请日：1989-07-13

申请人： Hiroyoshi Tsuchiya ,  Atsuharu Yamamoto ,  Kunio Sannomiya ,  Hiroaki Kotera ,  Katsuo Nakazato ,  Mikio Fujita ,  Shigeo Komizo

发明人： Hiroyoshi Tsuchiya ,  Atsuharu Yamamoto ,  Kunio Sannomiya ,  Hiroaki Kotera ,  Katsuo Nakazato ,  Mikio Fujita ,  Shigeo Komizo

IPC分类号： G06K7/10

CPC分类号： G06K7/10871 ,  G06K7/1093 ,  G06K7/1443 ,  G06K7/1456

摘要： An apparatus for receiving input data values representing an array of picture elements of a source image containing one or more bar code regions, whereby the input data values are converted to bi-level values representing black or white states which are stored in an image memory, while in addition the bi-level values are processed to obtain data representing an image in which a "skeleton" central portion of the bar code region appears as an all-black region, while background black regions are eliminated. A central position and the slope of a central axis of the bar code region are computed based on that "skeleton" region, and data values in the image memory which conform to the central axis are then read out, to read the bar code data.

公开(公告)号：US5309252A

公开(公告)日：1994-05-03

申请号：US787112

申请日：1991-11-04

申请人： Shigeo Komizo ,  Mikio Fujita

发明人： Shigeo Komizo ,  Mikio Fujita

IPC分类号： G07F17/40 ,  B07C3/00 ,  B65G47/48 ,  B65G61/00 ,  G06K7/00 ,  G06K7/10 ,  G06K17/00 ,  G06Q10/10 ,  G06Q50/00 ,  G06Q50/30 ,  G06Q50/32 ,  H04N5/14

CPC分类号： G06Q10/08 ,  G06K7/10861

摘要： Disclosed is a document generator which comprises a memory unit for storing a digital picture signal obtained by picking up an image of a surface of a distributed object in which code information such as an ID number peculiar to the distributed object is provided by a notation tool including a bar code, a code information reading unit for selectively reading code information from the picture signal, and a retry unit for code information reading.

摘要翻译： 公开了一种文件生成器，其包括存储单元，用于存储通过拾取分布对象的表面的图像而获得的数字图像信号，其中通过符号工具提供由分布对象特有的ID号等代码信息，包括 条形码，用于从图像信号中有选择地读取码信息的代码信息读取单元，以及用于代码信息读取的重试单元。

公开(公告)号：US06367698B1

公开(公告)日：2002-04-09

申请号：US09527849

申请日：2000-03-17

申请人： Atsuharu Yamamoto ,  Mikio Fujita

发明人： Atsuharu Yamamoto ,  Mikio Fujita

IPC分类号： G06K710

CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K7/1452

摘要： A bar code reader which is suitable for decoding a four-state bar code such as a Postnet bar code and which is designed to extract a bar code correctly from a background in a captured image. The bar code reader includes a binary coding circuit transforming a captured image into a binary image, an image storage storing therein the binary image, a shrinking circuit shrinking each pattern in the binary image by k pixels, a vertical expansion circuit expanding each pattern in the image outputted from the shrinking circuit vertically by m pixel, an edge detector detecting a contour of each pattern in the image outputted from the vertical expansion circuit to produce an image containing an edge of each pattern, a horizontal expansion circuit expanding each pattern in the image outputted from the edge detector horizontally by n1 pixel, a horizontal contraction circuit contracting each pattern in the image outputted from the horizontal expansion circuit horizontally by n2, an identification circuit labeling patterns in the image outputted from the horizontal contraction circuit to identify the patterns, and a decoder. The identification circuit specifies a bar code area based on shape characteristics of the patterns. The decoder selects data on the image stored in the image storage which belongs in the bar code area specified by the identification circuit to decode the bar code.

摘要翻译： 一种适用于解码诸如Postnet条形码之类的四状态条形码的条码阅读器，其设计用于从拍摄图像的背景中正确提取条形码。 条形码读取器包括二进制编码电路，将拍摄图像变换为二进制图像，存储二进制图像的图像存储器，将二进制图像中的每个图案缩小为k个像素的缩小电路， 从收缩电路垂直输出的像素为m像素，边缘检测器检测从垂直扩展电路输出的图像中的每个图案的轮廓，以产生包含每个图案的边缘的图像;水平扩展电路，其扩展图像中的每个图案 从边缘检测器水平地输出n1像素的水平收缩电路，水平收缩电路将从水平扩展电路输出的图像中的每个图案水平地收缩n2，识别电路标记从水平收缩电路输出的图像中的图案以识别图案，以及 一个解码器 识别电路基于图案的形状特征来指定条形码区域。 解码器选择存储在由识别电路指定的条形码区域中的图像存储器中的图像上的数据，以解码条形码。

公开(公告)号：US20060212500A1

公开(公告)日：2006-09-21

申请号：US11434281

申请日：2006-05-16

申请人： Mikio Fujita ,  Naofumi Waku

发明人： Mikio Fujita ,  Naofumi Waku

IPC分类号： G06F15/00

CPC分类号： H03M7/24

摘要： In order to provide an exponent encoder circuit for obtaining an exponent constituted by a left shift amount for normalizing input data with code bits, there is provided a first logic circuit for inverting data portions other than code bits and shifting the code bits to least significant bit positions when inputted data is a negative number and allowing data portions other than the code bits to pass as is and moving the code bits to least significant bit positions when the inputted data is a positive number, and a second logic circuit for putting a plurality of logic operation equations for obtaining each bit of an exponent from output of the first logic circuit as decided by a truth table for outputs of the first logic circuit and corresponding exponents in a form where common terms are cancelled out.

公开(公告)号：US06275420B1

公开(公告)日：2001-08-14

申请号：US09552690

申请日：2000-04-19

申请人： Mikio Fujita ,  Hisaki Ishida

发明人： Mikio Fujita ,  Hisaki Ishida

IPC分类号： G11C700

CPC分类号： G11C7/1075 ,  G11C7/1006 ,  G11C2207/104

摘要： A semiconductor device includes a memory cell part which has data input terminals and which stores data received at the data input terminals and a data bus which is supplied with data. The semiconductor device also includes a transfer circuit which is coupled between the data bus and the data input terminals and which transfers the data from the data bus to the data input terminals in response to a transfer selection signal. The semiconductor device also includes a transfer control circuit which receives a bit selection signal and outputs the transfer selection signal.

摘要翻译： 半导体器件包括具有数据输入端并存储在数据输入端子处接收的数据的存储单元部分和被提供有数据的数据总线。 半导体器件还包括耦合在数据总线和数据输入端之间的传送电路，并且响应传输选择信号将数据从数据总线传送到数据输入端。 半导体器件还包括接收位选择信号并输出​​传输选择信号的传输控制电路。

公开(公告)号：US07096241B2

公开(公告)日：2006-08-22

申请号：US10152779

申请日：2002-05-23

申请人： Mikio Fujita ,  Naofumi Waku

发明人： Mikio Fujita ,  Naofumi Waku

IPC分类号： G06F15/00

CPC分类号： H03M7/24

摘要： In order to provide an exponent encoder circuit for obtaining an exponent constituted by a left shift amount for normalizing input data with code bits, there is provided a first logic circuit for inverting data portions other than code bits and shifting the code bits to least significant bit positions when inputted data is a negative number and allowing data portions other than the code bits to pass as is and moving the code bits to least significant bit positions when the inputted data is a positive number, and a second logic circuit for putting a plurality of logic operation equations for obtaining each bit of an exponent from output of the first logic circuit as decided by a truth table for outputs of the first logic circuit and corresponding exponents in a form where common terms are cancelled out.