公开(公告)号：US20050098633A1

公开(公告)日：2005-05-12

申请号：US10837911

申请日：2004-05-03

申请人： Paul Poloniewicz ,  Mehul Patel ,  Sundeep Kumar ,  Joseph Cai ,  Duanfeng He

发明人： Paul Poloniewicz ,  Mehul Patel ,  Sundeep Kumar ,  Joseph Cai ,  Duanfeng He

IPC分类号： G06K7/10

CPC分类号： G07G1/0054 ,  G06K7/10722 ,  G06K7/10732

摘要： A bar code scanning system and method for reading and processing bar code symbology uses a scanning station installed above the check-out stand and a receiving station at some distance away from the scanning station. The scanning station projects light onto a surface of the check-out stand. The projected light can have a well defined border indicating where a user should place items to be scanned. Alternatively, a pattern coincident with the projected light can be projected onto the surface and which includes a target indicating where items should be placed for scanning. Light reflected by items in the target region is processed to decode optical symbology on the item and produce a signal that is representative of said sensed symbology. Information about the scanned item can be processed and displayed by the receiving station for use in, e.g., a point-of-sale transaction. The system can also be configured to capture images of a user's payment card for use in payment processing and to store images of at least selected scanned items for use in subsequent processes.

摘要翻译： 条形码扫描系统和读取和处理条形码符号系统的方法使用安装在退房台上方的扫描台和距离扫描站一定距离的接收站。 扫描台将光投射到退房台的表面上。 投影光可以有一个明确定义的边界，指示用户应该放置要扫描的物品的位置。 或者，与投影光一致的图案可以投影到表面上，并且其包括指示应该放置物品以进行扫描的目标。 处理由目标区域中的项目反射的光，以对该物品上的光学符号进行解码，并产生代表所述检测到的符号系统的信号。 关于被扫描物品的信息可以被接收站处理和显示，以用于例如销售点交易。 该系统还可以被配置为捕获用于用于支付处理的用户的支付卡的图像，并且存储用于后续处理的至少所选扫描项目的图像。

公开(公告)号：US07395970B2

公开(公告)日：2008-07-08

申请号：US10837911

申请日：2004-05-03

申请人： Paul Poloniewicz ,  Mehul Patel ,  Sundeep Kumar ,  Joseph Cai ,  Duanfeng He

发明人： Paul Poloniewicz ,  Mehul Patel ,  Sundeep Kumar ,  Joseph Cai ,  Duanfeng He

IPC分类号： G06K7/10

CPC分类号： G07G1/0054 ,  G06K7/10722 ,  G06K7/10732

摘要： A bar code scanning system and method for reading and processing bar code symbology uses a scanning station installed above the check-out stand and a receiving station at some distance away from the scanning station. The scanning station projects light onto a surface of the check-out stand. The projected light can have a well defined border indicating where a user should place items to be scanned. Alternatively, a pattern coincident with the projected light can be projected onto the surface and which includes a target indicating where items should be placed for scanning. Light reflected by items in the target region is processed to decode optical symbology on the item and produce a signal that is representative of said sensed symbology. Information about the scanned item can be processed and displayed by the receiving station for use in, e.g., a point-of-sale transaction. The system can also be configured to capture images of a user's payment card for use in payment processing and to store images of at least selected scanned items for use in subsequent processes.

摘要翻译： 条形码扫描系统和读取和处理条形码符号系统的方法使用安装在退房台上方的扫描台和距离扫描站一定距离的接收站。 扫描台将光投射到退房台的表面上。 投影光可以有一个明确定义的边界，指示用户应该放置要扫描的物品的位置。 或者，与投影光一致的图案可以投影到表面上，并且其包括指示应该放置物品以进行扫描的目标。 处理由目标区域中的项目反射的光，以对该物品上的光学符号进行解码，并产生代表所述检测到的符号系统的信号。 关于被扫描物品的信息可以被接收站处理和显示，以用于例如销售点交易。 该系统还可以被配置为捕获用于用于支付处理的用户的支付卡的图像，并且存储用于后续处理的至少所选扫描项目的图像。

公开(公告)号：US08960550B2

公开(公告)日：2015-02-24

申请号：US12317846

申请日：2008-12-30

申请人： Dariusz J. Madej ,  Joseph Cai ,  Duanfeng He ,  Miroslav Trajkovic ,  Dayou Wang ,  Michelle Wang

发明人： Dariusz J. Madej ,  Joseph Cai ,  Duanfeng He ,  Miroslav Trajkovic ,  Dayou Wang ,  Michelle Wang

IPC分类号： G02B26/10 ,  G06K7/10

CPC分类号： G06K7/10871

摘要： An arrangement for, and a method of, minimizing misdecodes of GS1 DataBar Limited (Databar-limited) symbols in a reader for electro-optically reading symbols of different symbologies, such as Universal Product Code (UPC) Version A (UPC-A) symbols, includes a data capture assembly for capturing light from a target symbol, and for generating an electrical signal indicative of the captured light; and a controller for processing and decoding the electrical signal, and for determining whether the decoded signal is indicative of a Databar-limited symbol, and for determining whether the decoded signal has characteristics indicative of a different symbology, such as the UPC-A symbol, to indicate whether a misdecode of the Databar-limited symbol has occurred.

摘要翻译： 读取器中用于电光学读取不同符号的符号（例如通用产品代码（UPC）版本A（UPC-A）符号）的GS1 DataBar Limited（Databar限制）符号的错误解码的装置和方法， 包括用于从目标符号捕获光并用于产生指示所捕获的光的电信号的数据捕获组件; 以及控制器，用于处理和解码电信号，并且用于确定解码信号是否指示数据限制符号，并且用于确定解码信号是否具有指示不同符号的特征，例如UPC-A符号， 以指示是否发生了Databar限制符号的错误解码。

公开(公告)号：US20100163625A1

公开(公告)日：2010-07-01

申请号：US12317846

申请日：2008-12-30

申请人： Dariusz J. Madej ,  Joseph Cai ,  Duanfeng He ,  Miroslav Trajkovic ,  Dayou Wang ,  Michelle Wang

发明人： Dariusz J. Madej ,  Joseph Cai ,  Duanfeng He ,  Miroslav Trajkovic ,  Dayou Wang ,  Michelle Wang

IPC分类号： G06K7/10

CPC分类号： G06K7/10871

摘要： An arrangement for, and a method of, minimizing misdecodes of GS1 DataBar Limited (Databar-limited) symbols in a reader for electro-optically reading symbols of different symbologies, such as Universal Product Code (UPC) Version A (UPC-A) symbols, includes a data capture assembly for capturing light from a target symbol, and for generating an electrical signal indicative of the captured light; and a controller for processing and decoding the electrical signal, and for determining whether the decoded signal is indicative of a Databar-limited symbol, and for determining whether the decoded signal has characteristics indicative of a different symbology, such as the UPC-A symbol, to indicate whether a misdecode of the Databar-limited symbol has occurred.

摘要翻译： 读取器中用于电光学读取不同符号的符号（例如通用产品代码（UPC）版本A（UPC-A）符号）的GS1 DataBar Limited（Databar限制）符号的错误解码的装置和方法， 包括用于从目标符号捕获光并用于产生指示所捕获的光的电信号的数据捕获组件; 以及控制器，用于处理和解码电信号，并且用于确定解码信号是否指示数据限制符号，并且用于确定解码信号是否具有指示不同符号的特征，例如UPC-A符号， 以指示是否发生了Databar限制符号的错误解码。

公开(公告)号：US06405925B2

公开(公告)日：2002-06-18

申请号：US09809216

申请日：2001-03-16

申请人： Duanfeng He ,  Eugene Joseph ,  Joseph Cai

发明人： Duanfeng He ,  Eugene Joseph ,  Joseph Cai

IPC分类号： G06K922

CPC分类号： G06K7/14

摘要： Optical image readers have a two-dimensional image sensor and an auto-discrimination function. The auto-discrimination function identifies optical codes by type for pixel clusters and, in some cases, tilt angle and start/stop coordinates. The clustered pixel data is passed to an appropriate decoder identified by the auto-discrimination function based upon a likelihood that the cluster contains an optical code of a particular type. Line drawing technique provide for adequate sampling of the clustered pixel data code based on the tilt angle of the code relative to an image sensor array.

摘要翻译： 光学图像读取器具有二维图像传感器和自动识别功能。 自动识别功能根据像素簇的类型识别光学代码，并且在某些情况下识别倾斜角度和起始/停止坐标。 基于簇包含特定类型的光码的可能性，将聚类像素数据传送到由自动识别功能识别的适当解码器。 线绘制技术提供了基于代码相对于图像传感器阵列的倾斜角的聚类像素数据代码的适当采样。

公开(公告)号：US08915442B2

公开(公告)日：2014-12-23

申请号：US12322134

申请日：2009-01-29

申请人： Joseph Cai ,  Duanfeng He ,  Dayou Wang ,  Michelle Wang

发明人： Joseph Cai ,  Duanfeng He ,  Dayou Wang ,  Michelle Wang

IPC分类号： G06K7/10 ,  G06K5/04 ,  G06K7/14

CPC分类号： G06K7/14 ,  G06K7/1491

摘要： An arrangement for, and a method of, enhancing performance of an imaging reader for imaging symbols to be read, include a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a symbol as pixel data over a field of view, and a controller operatively connected to the imager, for mapping a virtual scan line in the field of view, for determining whether the virtual scan line extends entirely over the symbol, for remapping the virtual scan line as a remapped virtual scan line that extends entirely over the symbol upon determining that the virtual scan line extends partially over the symbol, and for decoding the pixel data that lies on the remapped virtual scan line.

摘要翻译： 包括用于对要读取的符号进行成像的成像读取器的性能的装置和方法，包括由读取器支持的固态成像器，并且具有用于将来自符号的返回光作为像素数据捕获的图像传感器阵列 视场，以及可操作地连接到成像器的控制器，用于在视场中映射虚拟扫描线，用于确定虚拟扫描线是否完全延伸穿过符号，用于将虚拟扫描线重新映射为重新映射的虚拟扫描 在确定虚拟扫描线部分地延伸到符号之上并且用于对位于重新映射的虚拟扫描线上的像素数据进行解码时，线完全在符号上延伸。

公开(公告)号：US20100187314A1

公开(公告)日：2010-07-29

申请号：US12322134

申请日：2009-01-29

申请人： Joseph Cai ,  Duanfeng He ,  Dayou Wang ,  Michelle Wang

发明人： Joseph Cai ,  Duanfeng He ,  Dayou Wang ,  Michelle Wang

IPC分类号： G06K7/10

CPC分类号： G06K7/14 ,  G06K7/1491

摘要： An arrangement for, and a method of, enhancing performance of an imaging reader for imaging symbols to be read, include a solid-state imager supported by the reader and having an array of image sensors for capturing return light from a symbol as pixel data over a field of view, and a controller operatively connected to the imager, for mapping a virtual scan line in the field of view, for determining whether the virtual scan line extends entirely over the symbol, for remapping the virtual scan line as a remapped virtual scan line that extends entirely over the symbol upon determining that the virtual scan line extends partially over the symbol, and for decoding the pixel data that lies on the remapped virtual scan line.

摘要翻译： 包括用于对要读取的符号进行成像的成像读取器的性能的装置和方法，包括由读取器支持的固态成像器，并且具有用于将来自符号的返回光作为像素数据捕获的图像传感器阵列 视场，以及可操作地连接到成像器的控制器，用于在视场中映射虚拟扫描线，用于确定虚拟扫描线是否完全延伸穿过符号，用于将虚拟扫描线重新映射为重新映射的虚拟扫描 在确定虚拟扫描线部分地延伸到符号之上并且用于对位于重新映射的虚拟扫描线上的像素数据进行解码时，线完全在符号上延伸。

公开(公告)号：US06250551B1

公开(公告)日：2001-06-26

申请号：US09096348

申请日：1998-06-12

申请人： Duanfeng He ,  Eugene Joseph ,  Joseph Cai

发明人： Duanfeng He ,  Eugene Joseph ,  Joseph Cai

IPC分类号： G06K710

CPC分类号： G06K7/14

摘要： The disclosure relates to optical image readers having a two-dimensional image sensor and an auto-discrimination function. The auto-discrimination function identifies optical codes by type for pixel clusters and, in some cases, tilt angle and start/stop coordinates. The clustered pixel data is passed to an appropriate decoder identified by the auto-discrimination function based upon a likelihood that the cluster contains an optical code of a particular type. Line drawing techniques provide for adequate sampling of the clustered pixel data code based on the tilt angle of the code relative to a image sensor array.

公开(公告)号：US5929420A

公开(公告)日：1999-07-27

申请号：US843751

申请日：1997-04-22

申请人： Joseph Cai

发明人： Joseph Cai

IPC分类号： G06K7/14 ,  G06K7/10

CPC分类号： G06K7/14

摘要： Bar code decoding methods and apparatus are disclosed wherein prototype characters are generated using calculated bar code distortion attributes. The vector distance measurements between the scanned bar code characters and the prototype characters are advantageously utilized to provide advanced and improved decoding.

摘要翻译： 公开了条形码解码方法和装置，其中使用计算的条形码失真属性生成原型字符。 扫描的条形码字符与原型字符之间的向量距离测量有利地用于提供先进和改进的解码。

公开(公告)号：US5278398A

公开(公告)日：1994-01-11

申请号：US783412

申请日：1991-10-28

申请人： Theodosios Pavlidis ,  Joseph Cai

发明人： Theodosios Pavlidis ,  Joseph Cai

IPC分类号： G06K7/10 ,  G06K7/016 ,  G06K7/14

CPC分类号： G06K7/1491 ,  G06K7/0166 ,  G06K7/14

摘要： A method for decoding bar code symbols in which a bar code reader and associated components scan a bar code symbol, produce a representation of the symbol, and attempt to decode that representation in order to produce a character message. The method consists of the steps of storing a first representation of the bar code symbol corresponding to a first scan path through a first portion of said symbol smaller than the entire symbol, and storing a second representation of the bar code symbol corresponding to a second scan path through the symbol. The method then processes said representations in the event a successful decode has not taken place by utilizing the signal from a first scan with the signal from a subsequent scan to determine the best alignment at which successive scans can be concatenated to form a combined signal. The process is repeated with different subsequent scans until successful decoding of the combined signal.

摘要翻译： 一种用于解码条形码符号的方法，其中条形码读取器和相关联的部件扫描条形码符号，产生符号的表示，并尝试对该表示进行解码以产生字符消息。 该方法包括以下步骤：将与第一扫描路径相对应的条形码符号的第一表示存储在小于整个符号的所述符号的第一部分上，并且存储对应于第二扫描的条形码符号的第二表示 通过符号的路径。 该方法然后在通过利用来自第一次扫描的信号与来自后续扫描的信号来确定连续扫描可以级联以形成组合信号的最佳对准的情况下未发生成功的解码的情况下处理所述表示。 以不同的后续扫描重复该过程，直到组合信号的成功解码。