公开(公告)号：US20050194449A1

公开(公告)日：2005-09-08

申请号：US10858247

申请日：2004-06-01

申请人： Duanfeng He ,  Eugene Joseph

发明人： Duanfeng He ,  Eugene Joseph

IPC分类号： G06K7/10

CPC分类号： G06K7/10732 ,  G06K7/10742

摘要： An optical code reading system and method are provided for reading optical codes imprinted or displayed on, or behind, reflective surfaces. The system includes an extended light source, including one of a backlight assembly and a frontlight assembly, emitting an extended-beam light for directly illuminating an optical code, at least one image sensor for sensing light reflected by the optical code and generating signals related to at least one image of the optical code, and at least one processor for processing at least a portion of the signals, generating a decodable image corresponding to the signals, and decoding at least a portion of the decodable image.

公开(公告)号：US06766955B2

公开(公告)日：2004-07-27

申请号：US09873302

申请日：2001-06-05

申请人： Mehul Patel ,  Duanfeng He ,  Eugene Joseph ,  Mark Correa

发明人： Mehul Patel ,  Duanfeng He ,  Eugene Joseph ,  Mark Correa

IPC分类号： G08K710

CPC分类号： G06K7/10861 ,  G07G1/0054 ,  H04N7/183

摘要： An imaging optical code reader is adapted for use in producing video displays and for use in motion detection surveillance using video compression and narrow band width communication links. An optical system including a plane parallel plate may be employed to change the system focal distance.

摘要翻译： 成像光学代码读取器适用于制作视频显示器，并用于使用视频压缩和窄带宽通信链路的运动检测监视。 可以采用包括平面平行板的光学系统来改变系统焦距。

公开(公告)号：US06328213B1

公开(公告)日：2001-12-11

申请号：US09096164

申请日：1998-06-12

申请人： Duanfeng He ,  Eugene Joseph

发明人： Duanfeng He ,  Eugene Joseph

IPC分类号： G02B2610

CPC分类号： G06K7/1452 ,  G06K7/14

摘要： Processing an analog electrical signal containing information representative of reflected light from indicia including regions of different light reflectivity, wherein the analog electrical signal contains edge transitions corresponding to boundaries between adjoining regions of different light reflectivity of the indicia. The edge transitions of at least a part of the analog electrical signal are analyzed to determine a level of blur in that part of the electrical signal. Based on the determined level of blur, one of a plurality of different techniques is selected for processing that part of the electrical signal to produce a digitized electrical signal in which transitions in the digital level of the signal correspond to boundaries between adjoining regions of different light reflectivity of the indicia.

摘要翻译： 处理包含表示来自包括不同光反射率的区域的标记的反射光的信息的模拟电信号，其中模拟电信号包含对应于标记的不同光反射率的相邻区域之间的边界的边缘变换。 分析模拟电信号的至少一部分的边缘跃迁以确定该电信号的该部分中的模糊度。 基于确定的模糊水平，选择多种不同技术中的一种来处理电信号的该部分以产生数字化的电信号，其中信号的数字电平的转变对应于不同光的相邻区域之间的边界 标记的反射率。

公开(公告)号：US06234397B1

公开(公告)日：2001-05-22

申请号：US09594093

申请日：2000-06-15

申请人： Duanfeng He ,  Kevin Hunter ,  Eugene Joseph

发明人： Duanfeng He ,  Kevin Hunter ,  Eugene Joseph

IPC分类号： G06K1906

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

摘要： The disclosure relates to techniques for determining the presence, orientation and location of features in an image of a two dimensional optical code. The techniques are adapted for use in mapping data in an image pixel plane with grid locations in a grid-based two dimensional code to account for size, rotation, tilt, warping and distortion of the code symbol. Where such a code is a MaxiCode, techniques are disclosed for determining the presence and location of the MaxiCode bulls-eye, orientation modules, primary data modules and secondary data modules.

摘要翻译： 本公开涉及用于确定二维光学代码的图像中特征的存在，取向和位置的技术。 这些技术适用于在基于网格的二维码中的网格位置的图像像素平面中映射数据以考虑码符号的大小，旋转，倾斜，翘曲和失真。 在这样的代码是MaxiCode的情况下，公开了用于确定MaxiCode多眼睛，定向模块，主数据模块和辅助数据模块的存在和位置的技术。

公开(公告)号：US6088482A

公开(公告)日：2000-07-11

申请号：US176894

申请日：1998-10-22

申请人： Duanfeng He ,  Kevin Hunter ,  Eugene Joseph

发明人： Duanfeng He ,  Kevin Hunter ,  Eugene Joseph

IPC分类号： G06K7/14 ,  G06K9/46

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

摘要： The disclosure relates to techniques for determining the presence, orientation and location of features in an image of a two dimensional optical code. The techniques are adapted for use in mapping data in an image pixel plane with grid locations in a grid-based two dimensional code to account for size, rotation, tilt, warping and distortion of the code symbol. Where such a code is a MaxiCode, techniques are disclosed for determining the presence and location of the MaxiCode bulls-eye, orientation modules, primary data modules and secondary data modules.

摘要翻译： 本公开涉及用于确定二维光学代码的图像中特征的存在，取向和位置的技术。 这些技术适用于在基于网格的二维码中的网格位置的图像像素平面中映射数据以考虑码符号的大小，旋转，倾斜，翘曲和失真。 在这样的代码是MaxiCode的情况下，公开了用于确定MaxiCode多眼睛，定向模块，主数据模块和辅助数据模块的存在和位置的技术。

公开(公告)号：US5889269A

公开(公告)日：1999-03-30

申请号：US789660

申请日：1997-01-27

申请人： Raj Bridgelall ,  Duanfeng He ,  Eugene Joseph ,  William John Sakoda

发明人： Raj Bridgelall ,  Duanfeng He ,  Eugene Joseph ,  William John Sakoda

IPC分类号： G06K7/10

CPC分类号： G06K7/10702 ,  G06K7/10693

摘要： An optical scanner for reading two-dimensional indicia such as bar code symbols and the like includes a scan element arranged to create a two-dimensional raster pattern which may be scanned across the indicia to be read. In order to improve linearity of response in the vertical direction, perpendicular to the direction of the scan lines, the scan element is driven in that direction by a modified triangle waveform in which the amplitude and/or the phase of at least one of the harmonics has been altered. A scanning synchronization signal is provided by a long thin photodetector which is swept by the scanning beam at the left hand end of each scan path. This enables reading of vertically-modulated bar code symbologies such as POSTNET and PostBar.

摘要翻译： 用于读取诸如条形码符号等二维标记的光学扫描器包括扫描元件，其被布置成产生二维光栅图案，该二维光栅图案可跨过待读取的标记进行扫描。 为了提高垂直于扫描线方向的垂直方向的响应线性，扫描元件沿着该方向被驱动，其中至少一个谐波的幅度和/或相位被修改为三角波形 已被改变。 扫描同步信号由在每个扫描路径的左端由扫描光束扫描的长的细光电检测器提供。 这样可以读取垂直调制的条形码符号，如POSTNET和PostBar。

公开(公告)号：US5767496A

公开(公告)日：1998-06-16

申请号：US439926

申请日：1995-05-12

申请人： Jerome Swartz ,  Eugene Joseph ,  Joseph Katz

发明人： Jerome Swartz ,  Eugene Joseph ,  Joseph Katz

IPC分类号： G06K17/00 ,  G07C9/00 ,  G06K7/10

CPC分类号： G06K17/00 ,  G07C9/00047

摘要： Document information is encoded in a graphic symbol applied to the document. The symbol is read to retrieve the document information which is then translated into a humanly discernible form different from that appearing on the document. In particular, encoded symbols are used to uniquely identify or memorialize persons named on credit cards.

摘要翻译： 文档信息被编码在应用于文档的图形符号中。 读取该符号以检索文档信息，然后将该文档信息翻译成与文档上出现的不同于人类可辨别的形式。 特别地，编码符号用于唯一地识别或纪念信用卡上​​的人。

公开(公告)号：US08167209B2

公开(公告)日：2012-05-01

申请号：US12624071

申请日：2009-11-23

申请人： Eugene Joseph ,  Duanfeng He

发明人： Eugene Joseph ,  Duanfeng He

IPC分类号： G06K7/10

CPC分类号： G06K7/10722

摘要： The exemplary system requires a 2D barcode be located on an object, a portion of which is to be captured in an image. The module size of the 2D barcode is chosen to match the smallest feature to be preserved on the output image. While the target is moving with respect to the imager the 2D bar code is also moving and the resulting image is degraded. The imager will properly decode the 2D barcode only if the bar code is stationary (or moving very slowly) and hence will provide an acceptable image in the region of the 2D bar code.

摘要翻译： 示例性系统要求2D条形码位于物体上，其一部分将被捕获在图像中。 选择2D条形码的模块尺寸以匹配要保留在输出图像上的最小特征。 当目标相对于成像器移动时，2D条形码也在移动，并且所得到的图像劣化。 如果条形码是静止的（或移动非常缓慢），则成像器将正确解码2D条形码，因此将在2D条形码区域中提供可接受的图像。

公开(公告)号：US20110315773A1

公开(公告)日：2011-12-29

申请号：US12824342

申请日：2010-06-28

申请人： Bradley S. Carlson ,  Duanfeng He ,  Eugene Joseph

发明人： Bradley S. Carlson ,  Duanfeng He ,  Eugene Joseph

IPC分类号： G06K7/10

CPC分类号： G06K7/10881 ,  H02J7/0036 ,  H02J2007/0062

摘要： A method and apparatus for powering a handheld device. The method includes measuring a current withdrawn by the handheld device from a USB port of the handheld device. The handheld device can include a barcode reading arrangement for reading a barcode on a target object. The method also includes withdrawing a supplementary current from an energy storage element in the handheld device if the current withdrawn from the USB port reaches a threshold current value.

摘要翻译： 一种用于为手持设备供电的方法和装置。 该方法包括测量手持设备从手持设备的USB端口提取的电流。 手持设备可以包括用于读取目标对象上的条形码的条形码读取装置。 如果从USB端口撤出的电流达到阈值电流值，该方法还包括从手持设备中的能量存储元件撤回辅助电流。

公开(公告)号：US07975067B2

公开(公告)日：2011-07-05

申请号：US12499192

申请日：2009-07-08

申请人： John Mason ,  Richard Watson ,  Arman Nikzad ,  Eugene Joseph

发明人： John Mason ,  Richard Watson ,  Arman Nikzad ,  Eugene Joseph

IPC分类号： G06F15/16

CPC分类号： H04L29/12009 ,  G06F1/181 ,  G06F3/03545 ,  G06F17/30017 ,  G06F17/30876 ,  G06F17/30879 ,  H04L29/12594 ,  H04L61/30 ,  H04L67/02 ,  H04L67/04 ,  H04W4/00 ,  H04W40/02 ,  H04W68/00 ,  H04W84/12

摘要： A method and apparatus for implementing alerts on a browser running on a portable handheld device is disclosed. The method generates an asynchronous notification action from the server and in response transmits an alert containing a message indicating availability of HTML pages that describe the nature of the alert. The alert is received at a node on a network and translated into the original message. An alert receipt acknowledgment is transmitted to the server. Access to the alert HTML page is provided through a URL containing the appropriate query strings necessary to present the appropriate HTML page. The invention also discloses a wireless local area network (WLAN) adapter associated with a wireless network that receives paging signals from a server on the network and returns an acknowledgment signal back to the server. The invention also discloses a client/server based method of delivering messages initiated by a client. After a connection is established between a client and server, the client requests a message from the server. In response, the server retrieves and returns the message back to the client.

摘要翻译： 公开了一种用于在便携式手持设备上运行的浏览器上实现警报的方法和装置。 该方法从服务器生成异步通知操作，并且作为响应传输包含描述警报性质的HTML页面的可用性的消息的警报。 在网络上的节点处接收到警报，并将其转换为原始消息。 警报收据确认被发送到服务器。 通过包含必需的相应查询字符串的URL提供对警报HTML页面的访问，以提供适当的HTML页面。 本发明还公开了一种与无线网络相关联的无线局域网（WLAN）适配器，其从网络上的服务器接收寻呼信号，并将确认信号返回给服务器。 本发明还公开了一种基于客户端/服务器的方式来传递由客户端发起的消息。 在客户端和服务器之间建立连接后，客户端从服务器请求一条消息。 作为响应，服务器检索并将消息返回给客户端。