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1. 发明授权

US5902986A Bar code reader with means for discriminating between a moving indicia and a stationary indicia 失效
标题翻译：条形码读取器，具有用于区分移动标记和静止标记的手段
公开(公告)号：US5902986A
公开(公告)日：1999-05-11
申请号：US32509
申请日：1998-02-27
申请人： Edward Barkan , Joseph Cai , Daniel R. McGlynn
发明人： Edward Barkan , Joseph Cai , Daniel R. McGlynn
IPC分类号： G06K7/10 , G06K7/14
CPC分类号： G06K7/10851 , G06K7/14 , G06K2207/1012
摘要： A reader generates a scanning beam for reading a bar code symbol on a selected item. The reader includes a motion sensor or software program for discriminating between the selected item and other items also having bar code symbols thereon. The motion sensor or software program for discriminating between the items may discriminate between an item swept past the reader and stationary items, or an item moved into the field of view of the reader, held stationary and moved out of the field of view and stationary or moving items or between an item placed within a predetermined distance range and other items.
摘要翻译：读取器产生用于读取所选项目上的条形码符号的扫描光束。读取器包括运动传感器或软件程序，用于区分所选项目和其上还具有条形码符号的其它项目。用于区分物品的运动传感器或软件程序可以区分经过阅读器扫过的物品和静止物品，或者移动到读取器的视野内的物品，保持静止并移动到视野之外并且静止或移动物品或放置在预定距离范围内的物品和其他物品之间。

2. 发明授权

US5773807A Arrangement for and method of minimizing reading errors in bar code symbol readers 失效
标题翻译：条形码符号阅读器的阅读错误的排列和方法
公开(公告)号：US5773807A
公开(公告)日：1998-06-30
申请号：US508585
申请日：1995-07-28
申请人： Edward Barkan , Joseph Cai , Daniel R. McGlynn
发明人： Edward Barkan , Joseph Cai , Daniel R. McGlynn
IPC分类号： G06K7/10 , G06K7/14 , G06F17/00
CPC分类号： G06K7/10851 , G06K7/14 , G06K2207/1012
摘要： A reader generates a scanning beam for reading a bar code symbol on a selected item. The reader includes a database in which codes for all symbols to be read are stored, and frequency of use data indicative of how often each stored code has been read. A processor compares the code of the symbol being scanned with the stored codes. Upon a successful comparison, the code is processed as a valid code. Upon failure to match the code to one of the stored codes, a most likely code is selected as the valid code. The most likely code is based on the frequency of use data.
摘要翻译：读取器产生用于读取所选项目上的条形码符号的扫描光束。读取器包括存储有要读取的所有符号的代码的数据库，以及指示每个存储的代码被读取的频率的使用频率。处理器将被扫描符号的代码与存储的代码进行比较。成功比较后，代码将作为有效代码进行处理。在将代码与存储的代码之一匹配失败后，选择最可能的代码作为有效代码。最可能的代码是基于使用频率的数据。

3. 发明授权

US5324924A Bar code decoder with changeable working ranges 失效
标题翻译：具有可变工作范围的条码解码器
公开(公告)号：US5324924A
公开(公告)日：1994-06-28
申请号：US880874
申请日：1992-05-11
申请人： Joseph Cai , Glenn S. Spitz , Edward Barkan , Robert Stein , Robert Sanders
发明人： Joseph Cai , Glenn S. Spitz , Edward Barkan , Robert Stein , Robert Sanders
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K2207/1013 , G06K2207/1017
摘要： An arrangement for decoding a bar code symbol in which the data resulting from scanning a bar code symbol with a bar code scanner is evaluated to determine if the scanned bar code symbol is within the working range of the scanner. The data acquired by the bar code scanner is evaluated to determine if the detected widths of the bars and spaces of the scanned bar code symbol are too small, less than a threshold value, which indicates that the bar code symbol is too far and outside of the working range of the scanner. Moreover, the working range of the bar code scanner can be selectively changed by changing the threshold value, which can be easily implemented by having the bar code scanner scan a menu bar code which instructs the decoder to change the threshold value to a selected new value which may be pre-established for the particular operation. The arrangement preferably includes software to process the data acquired by the bar code scanner, and if the data indicates that the scanning distance to the bar code is too far, a flag is set in the software which prevents a new decode result from being recorded. However, the intermediate decode result is retained in memory to indicate that the bar code symbol is still in the scanner's field of view. A second evaluation validation to determine if the detected bar code symbol is valid may also be performed.
摘要翻译：用于对条形码符号进行解码的装置，其中对由条形码扫描器扫描条形码符号得到的数据进行评估，以确定所扫描的条形码符号是否在扫描仪的工作范围内。评估由条形码扫描器获取的数据，以确定扫描的条形码符号的条形和空格的检测宽度是否太小，小于阈值，这表示条形码符号太远并且不在扫描仪的工作范围。此外，可以通过改变阈值来选择性地改变条形码扫描器的工作范围，该阈值可以通过使条形码扫描器扫描指示解码器将阈值改变为所选择的新值的菜单条形码来容易地实现这可能是针对特定操作预先建立的。该装置优选地包括用于处理由条形码扫描器获取的数据的软件，并且如果数据指示到条形码的扫描距离太远，则在软件中设置标志以防止新的解码结果被记录。然而，中间解码结果被保留在存储器中以指示条形码符号仍处于扫描仪的视野中。还可以执行用于确定检测到的条形码符号是否有效的第二评估验证。

4. 发明授权

US08960550B2 Minimizing misdecodes in electro-optical readers 有权
标题翻译：最大限度地减少电光读取器的误码
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。

5. 发明授权

US5929420A Method for reading distorted bar codes 失效
标题翻译：读取扭曲条形码的方法
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。

6. 发明授权

US5278398A Decoding bar code symbols by determining the best alignment of partial scans 失效
标题翻译：通过确定部分扫描的最佳对齐来解码条形码符号
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。

7. 发明授权

US08162224B2 Method of setting amount of exposure for photodetector array in barcode scanner 有权
标题翻译：条形码扫描仪中光电检测器阵列曝光量的设置方法
公开(公告)号：US08162224B2
公开(公告)日：2012-04-24
申请号：US12511485
申请日：2009-07-29
申请人： Dayou Wang , Joseph Cai , Michelle Wang
发明人： Dayou Wang , Joseph Cai , Michelle Wang
IPC分类号： G06K7/10
CPC分类号： G06K7/14 , G06K7/10722 , G06K7/10851
摘要： A method and apparatus for setting the amount of exposure for the photodetector array in a barcode scanner. An image is captured with the photodetector array. The type for each sub-region in the multiple sub-regions in the image captured is determined. Each sub-region in the multiple sub-regions is assigned a weight based on the type of the sub-region. The amount of exposure for the photodetector array in the barcode scanner is set automatically based on the weight for each sub-region in the multiple sub-regions. In some embodiments, the predetermined image area are repartitioned into new multiple sub-regions based on the image captured, and the amount of exposure for the photodetector array in the barcode scanner is set automatically based on the weight for each sub-region in the new multiple sub-regions.
摘要翻译：一种用于设置条形码扫描器中的光电检测器阵列的曝光量的方法和装置。用光电检测器阵列捕获图像。确定拍摄的图像中的多个子区域中的每个子区域的类型。根据子区域的类型为多个子区域中的每个子区域分配权重。基于多个子区域中的每个子区域的权重，自动设置条形码扫描器中的光电检测器阵列的曝光量。在一些实施例中，基于所捕获的图像将预定图像区域重新分割成新的多个子区域，并且基于新的每个子区域的权重自动设置条形码扫描器中的光电检测器阵列的曝光量多个子区域。

8. 发明申请

US20080093457A1 Imaging reader and method with visual aiming prompts 审中-公开
标题翻译：成像阅读器和方法与视觉瞄准提示
公开(公告)号：US20080093457A1
公开(公告)日：2008-04-24
申请号：US11583548
申请日：2006-10-19
申请人： Dayou Wang , Joseph Cai
发明人： Dayou Wang , Joseph Cai
IPC分类号： G06K7/10
CPC分类号： G06K7/10722 , G06K7/10732
摘要： An aiming assembly supported by a mobile imaging reader projects a visual prompt, preferably one or more arrows, on a symbol to indicate a direction in which a field of view of an imager in the housing is to be moved in order to position the symbol entirely within the field of view prior to electro-optically reading the symbol.
摘要翻译：由移动成像读取器支持的瞄准组件在符号上投射视觉提示，优选地一个或多个箭头，以指示要移动壳体中的成像器的视野以便将符号完全定位的方向在电光学读取符号之前的视场内。

9. 发明申请

US20050098633A1 Zero-footprint camera-based point-of-sale bar code presentation scanning system 有权
标题翻译：零占地面积相机的销售点条形码显示扫描系统
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。

10. 发明申请

US20100163625A1 Minimizing misdecodes in electro-optical readers 有权
标题翻译：最大限度地减少电光读取器的误码
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。

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