公开(公告)号：US06343740B1

公开(公告)日：2002-02-05

申请号：US08982188

申请日：1997-12-17

申请人： Paul P. Ju ,  Ynjiun P. Wang

发明人： Paul P. Ju ,  Ynjiun P. Wang

IPC分类号： G06K710

CPC分类号： G06K7/1456 ,  G06K7/10722 ,  G11C7/005 ,  G11C8/12

摘要： An image sensor array system is arranged to enable oblique access for readout of image data from a stepped pixel pattern of sensor cells. The stepped pixel pattern represents an oblique line component of an image portion containing a 2-D bar code or other dataform. An obliquely aligned bar code image can thus be read out along oblique lines which follow rows of bar code elements traversing the elements. The sensor array (16) is accessed by horizontal and vertical readout circuits (22 and 24) under the control of address signals from an address unit (20). Location signals, from a source (12), indicative of a selected image portion (39) may be used by the address unit (20) to provide address signals representative of the stepped pixel pattern for a particular oblique line component. Under the control of the address signals, image data from cells at the intersection of array lines and columns are sampled by sampling devices (26-32) and provided as output signals representative of the selected oblique line component. The output signals are then usable for decoding the bar code or other dataform.

摘要翻译： 图像传感器阵列系统被布置成使得能够从传感器单元的阶梯状像素图案读出图像数据的倾斜访问。 阶梯状像素图案表示包含2-D条形码或其他数据形式的图像部分的斜线分量。 因此，可以沿着遍历元件的条形码元素行的斜线读出倾斜对准的条形码图像。 在来自地址单元（20）的地址信号的控制下，传感器阵列（16）由水平和垂直读出电路（22和24）访问。 指示所选择的图像部分（39）的来自源（12）的位置信号可以由地址单元（20）使用，以提供表示特定斜线分量的阶梯状像素图案的地址信号。 在地址信号的控制下，通过采样装置（26-32）对阵列线和列交叉处的单元的图像数据进行采样，并将其作为表示所选斜线分量的输出信号提供。 然后输出信号可用于解码条形码或其他数据形式。

公开(公告)号：US6129278A

公开(公告)日：2000-10-10

申请号：US245613

申请日：1994-05-19

申请人： Ynjiun P. Wang ,  Paul Pay-Lun Ju

发明人： Ynjiun P. Wang ,  Paul Pay-Lun Ju

IPC分类号： G06K7/14 ,  G06K7/10

CPC分类号： G06K7/1452 ,  G06K7/14 ,  G06K7/1469

摘要： By providing subpixel accuracy in the detection of the position of an element of a pixel data image, the invention makes possible reductions in scanner and storage resolution of the order of 65 percent or greater for two-dimensional applications. Methods use normalized gray level values to determine the extent of coverage of an image cell by individual pixels. By then applying such gray level values of a plurality of successive pixels to a preconstructed lookup table, ambiguities are resolved to determine the position of cell edges. The cell edge data can be used to determine cell position or used directly in edge-based bar code decoding techniques. Cell position data is used for construction of a virtual image of a bar code or other dataform of interest and virtual image information may then be used for purposes of decoding the bar code or other dataform. For two-dimensional applications, the gray level values of a plurality of successive pixels, as referred to, may be implemented as a sliding window of three such gray level values along successive lines in a first dimension which are applied to a lookup table, followed by repetition for successive lines in a perpendicular dimension, to derive cell edge data for both dimensions.

摘要翻译： 通过在对像素数据图像的元素的位置的检测中提供子像素精度，本发明可以将二维应用的扫描器和存储分辨率降低65％或更高的量级。 方法使用归一化灰度值来确定单个像素对图像单元的覆盖范围。 然后将多个连续像素的这种灰度值应用于预先构造的查找表，解决模糊度以确定单元边缘的位置。 小区边缘数据可以用于确定小区位置或直接用于基于边缘的条码解码技术。 单元位置数据用于构建条形码或感兴趣的其他数据形式的虚拟图像，然后可以将虚拟图像信息用于解码条形码或其他数据形式。 对于二维应用，如参考的多个连续像素的灰度值可以被实现为沿着第一维中的连续行的三个这样的灰度值的滑动窗口，其被应用于查找表，随后 通过重复在垂直维度上的连续行，以导出两个维度的单元格边缘数据。

公开(公告)号：US5966463A

公开(公告)日：1999-10-12

申请号：US556311

申请日：1995-11-13

申请人： Ynjiun P. Wang

发明人： Ynjiun P. Wang

IPC分类号： G06K9/50 ,  G06K9/46

CPC分类号： G06K9/50

摘要： Line-by-line dataform readers and methods are enabled to operate with reduced buffer memory capacity. Storage and retention of image data are controlled on an interactive basis by concurrent analysis while lines of image data are coupled from a linear scanner. In a first embodiment lines of image data are analyzed for recognition of a feature unique to a type of dataform. Upon successful feature recognition a series of earlier and later lines of image data adequate to include a complete dataform image are retained in memory for decoding purposes. Prior to successful feature recognition, as lines of image data exceeding a limited memory storage capacity are received the earliest stored lines are discarded on a first-in-first-out basis. In a second embodiment, a buffer memory has a storage capacity adequate to store only a partial dataform image. Upon successful dataform feature recognition the type and size of the dataform are determined and decoding of the earliest lines including dataform image data is initiated, before the full dataform image is stored. As decoding progresses, the earliest lines of dataform image data are discarded as later lines of dataform image data are still being coupled from the scanner. Cost and power usage are lowered by reduction of required memory capacity.

摘要翻译： 逐行数据读取器和方法使得能够以减少的缓冲存储器容量进行操作。 图像数据的存储和保留通过并行分析在交互的基础上进行控制，而图像数据的线从线性扫描器耦合。 在第一实施例中，分析线图像数据以识别对于数据形式类型唯一的特征。 在成功的特征识别之后，足以包括完整的数据形式图像的一系列早期和后期的图像数据被保留在存储器中用于解码目的。 在成功的特征识别之前，由于接收到超过有限的存储器存储容量的图像数据行，所以最早存储的行以先进先出的方式被丢弃。 在第二实施例中，缓冲存储器具有足以仅存储部分数据形式图像的存储容量。 在成功的数据形式特征识别之后，确定数据形式的类型和大小，并且在存储完整的数据形状图像之前启动包括数据形式图像数据的最早行的解码。 随着解码的进行，数据形式图像数据的最早行被丢弃，因为数据形式的后一行图像数据仍然从扫描器耦合。 通过减少所需的内存容量来降低成本和功耗。

公开(公告)号：US5831674A

公开(公告)日：1998-11-03

申请号：US538834

申请日：1995-10-04

申请人： Paul P. Ju ,  Ynjiun P. Wang

发明人： Paul P. Ju ,  Ynjiun P. Wang

IPC分类号： G11C7/00 ,  G11C8/12 ,  H04N5/335

CPC分类号： G11C8/12 ,  G11C7/005

摘要： An image sensor array system is addressable to enable readout of randomly selected image data from any one or more individual sensor cells, for any selected image area (13), or for the entire image area (15). The sensor array (16) is accessed by horizontal and vertical readout circuits (22 and 24) under the control of address signals from an address unit (20). Location signals, from a source (12), indicative of a selected image area (13) may be used by the address unit (20) to provide address signals representative of the location of a specific sensor cell or area (13) of the array including image data of interest. Under the control of the address signals, image data from cells at the intersection of array lines and columns are sampled by sampling devices (26-32) and provided as output signals representative of the selected portion of the image area at an output port (34). Simplified readout can be provided for oblique line components of images. Differing input bus widths enable different levels of cell or line selection.

摘要翻译： 图像传感器阵列系统可寻址以使得能够从任何一个或多个单独的传感器单元，对于任何选择的图像区域（13）或整个图像区域（15）读出随机选择的图像数据。 在来自地址单元（20）的地址信号的控制下，传感器阵列（16）由水平和垂直读出电路（22和24）访问。 指示所选择的图像区域（13）的源（12）的位置信号可以由地址单元（20）使用，以提供表示阵列的特定传感器单元或区域（13）的位置的地址信号 包括感兴趣的图像数据。 在地址信号的控制下，通过采样装置（26-32）对阵列线和列交叉处的单元的图像数据进行采样，并将其作为输出端口（34）输出，代表图像区域的选定部分 ）。 可以为图像的斜线分量提供简化的读数。 不同的输入总线宽度可以实现不同级别的单元格或行选择。

公开(公告)号：US5818023A

公开(公告)日：1998-10-06

申请号：US611126

申请日：1996-03-05

申请人： Robert F. Meyerson ,  Ynjiun P. Wang ,  Timothy P. O'Hagan

发明人： Robert F. Meyerson ,  Ynjiun P. Wang ,  Timothy P. O'Hagan

IPC分类号： G06K7/10 ,  G06K7/14

CPC分类号： G06K7/1093 ,  G06K7/14

摘要： A portable ID card verification apparatus is disclosed. The apparatus includes a housing defining an interior region supporting electrical circuitry including a processor. A two dimensional imaging assembly is at least partially enclosed within the housing. A display screen in electrically coupled to the imaging assembly. An upper surface of the housing supports a glass window on which an ID card is positioned for reading a dataform imprinted thereon. The dataform includes a compressed digitized representation of an attribute of the authorized card holder, such as a photograph of the card holder. The imaging assembly images and decodes the 2D dataform on the ID card and the processor in conjunction with display driver circuitry causes an image of the card holder's photograph to be displayed on the display screen.

摘要翻译： 公开了便携式身份证验证装置。 该装置包括限定支持包括处理器的电路的内部区域的壳体。 二维成像组件至少部分地封装在壳体内。 电耦合到成像组件的显示屏。 壳体的上表面支撑玻璃窗，ID玻璃在其上定位，用于读取印在其上的数据。 数据形式包括授权持卡人的属性的压缩数字化表示，例如持卡人的照片。 成像组件对ID卡和处理器上的2D数据形式图像和解码结合显示驱动器电路使得卡持有人的照片的图像显示在显示屏上。

公开(公告)号：US5811774A

公开(公告)日：1998-09-22

申请号：US698428

申请日：1996-08-15

申请人： Paul P. Ju ,  Ynjiun P. Wang

发明人： Paul P. Ju ,  Ynjiun P. Wang

IPC分类号： G06K7/00 ,  G01J3/10 ,  G01J3/28 ,  G01J3/51 ,  G01J5/08 ,  G06K7/10

CPC分类号： G01J3/51 ,  G06K7/10564 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10752 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/10891 ,  G06K7/1092 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/2803 ,  G01J5/08 ,  G06K2007/10524 ,  G06K2207/1011

摘要： An extended working range dataform reader with reduced power consumption having a camera assembly and a circuit control board including game control circuitry and exposure control circuitry configured to set an initial gain value and an initial exposure period, respectively, resulting from a previous dataform reading session. Subsequent fields of image data are captured by the camera which are used to correct the gain and exposure relative to the initial values for gain and exposure period, thereby reducing the latency period for realizing correct values and reducing power consumption during power up. Furthermore, the gain control system and the exposure control system each utilize an open loop feedback such that successive fields of image data captured by the camera are utilized to calculate correct values, thereby reducing the latency time for realizing a correct value. Additionally, a reader module is provide for use in a dataform reader that emulates a laser module such that the dataform reader module can be readily integrated into existing laser-based dataform reading systems. Preferably, laser model emulation circuitry included in the dataform reader module emulates output of a laser scan module and a control circuit board in which the emulation circuitry is realized has an output port constructed and arranged to communicate with devices configured for use with a laser scanner.

摘要翻译： 一种具有降低的功耗的扩展工作范围数据形式读取器，具有相机组件和包括游戏控制电路和曝光控制电路的电路控制板，所述电路控制电路和曝光控制电路被配置为分别设置由先前数据形式读取会话产生的初始增益值和初始曝光周期。 图像数据的后续字段由照相机拍摄，用于相对于增益和曝光周期的初始值来校正增益和曝光，从而减少用于实现正确值的等待时间周期，并降低加电期间的功耗。 此外，增益控制系统和曝光控制系统各自利用开环反馈，使得由相机拍摄的图像数据的连续场被用于计算正确的值，从而减少实现正确值的等待时间。 此外，读取器模块提供用于模拟激光模块的数据形式读取器，使得数据形式读取器模块可以容易地集成到现有的基于激光的数据形式读取系统中。 优选地，包括在数据形式读取器模块中的激光模型仿真电路模拟激光扫描模块的输出和其中仿真电路被实现的控制电路板，其输出端口被构造和布置成与被配置为与激光扫描器一起使用的器件通信。

公开(公告)号：US5703349A

公开(公告)日：1997-12-30

申请号：US580063

申请日：1995-12-20

申请人： Robert F. Meyerson ,  Ynjiun P. Wang

发明人： Robert F. Meyerson ,  Ynjiun P. Wang

IPC分类号： G01J3/10 ,  G01J3/28 ,  G01J3/51 ,  G01J5/08 ,  G06K7/10

CPC分类号： G06K7/10891 ,  G01J3/51 ,  G01J3/513 ,  G06K7/10564 ,  G06K7/10722 ,  G06K7/10732 ,  G06K7/10752 ,  G06K7/10792 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/1092 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/2803 ,  G01J5/08 ,  G06K2007/10524 ,  G06K2207/1011

摘要： A portable data collection device is disclosed. The device includes a two dimensional (2D) photosensor array imaging assembly selectively actuatable for reading bar code dataforms and recording an image of an item in the imaging assembly's target area or field. The portable data collection device includes two triggers, a first trigger actuatable for reading a bar code dataform and a second trigger actuatable for recording an image of an item in the target area. In one embodiment of the portable data collection device of the present invention, a radio module is provided for transmitting an output signal to a remote device. In another embodiment of the portable data collection device of the present invention, an output signal is coupled to a terminal processing board for further processing and storage.

摘要翻译： 公开了一种便携式数据收集装置。 该装置包括二维（2D）光电传感器阵列成像组件，其可选择性地致动以用于读取条形码数据形式并在成像组件的目标区域或场中记录项目的图像。 便携式数据收集装置包括两个触发器，可触发读取条形码数据形式的第一触发器和可触发的用于在目标区域中记录物品的图像的第二触发器。 在本发明的便携式数据收集装置的一个实施例中，提供了一种用于将输出信号发送到远程设备的无线电模块。 在本发明的便携式数据采集装置的另一个实施例中，输出信号耦合到终端处理板以进一步处理和存储。

公开(公告)号：US5602377A

公开(公告)日：1997-02-11

申请号：US396519

申请日：1995-03-01

申请人： William E. Beller ,  Ynjiun P. Wang

发明人： William E. Beller ,  Ynjiun P. Wang

IPC分类号： G07G1/12 ,  B65C9/46 ,  G06K1/12 ,  G06K7/00 ,  G06K7/10 ,  G06K17/00

CPC分类号： G06K1/14 ,  G06K1/121 ,  G06K17/00 ,  G06K19/06009 ,  Y10S235/90

摘要： A bar code scanning and labeling apparatus for scanning and decoding a bar code associated with a product and generating a two dimensional bar code dataform incorporating selected data including at least a portion of the decoded, product related data from the product's bar code and additional data related to the product is disclosed. The apparatus includes a microprocessor having data selection circuitry adapted to retrieve the selected data and to assemble the retrieved selected into a format suitable for encoding. A method of providing a modified bar code dataform using the apparatus is also disclosed. The steps of the method include: scanning and decoding a product's bar code dataform; selecting data to comprise the modified bar code dataform, the selected data including decoded data relating to the product from the product's bar code dataform and additional data related to the product; and utilizing the selected data to produce the modified bar code dataform.

摘要翻译： 一种用于扫描和解码与产品相关联的条形码的条形码扫描和标签装置，并且产生包含所选数据的二维条形码数据形式，所述二维条形码数据包括来自产品的条形码和附加数据的解码的与产品相关的数据的至少一部分 向产品披露。 该装置包括具有数据选择电路的微处理器，该数据选择电路适于检索所选择的数据并将所检索的所选组合组合成适于编码的格式。 还公开了使用该装置提供经修改的条形码数据形式的方法。 该方法的步骤包括：扫描和解码产品的条形码数据; 选择数据以包括修改的条形码数据形式，所选择的数据包括与产品的条形码数据形式相关的解码数据和与产品相关的附加数据; 并利用所选择的数据产生经修改的条形码数据。

公开(公告)号：US5521366A

公开(公告)日：1996-05-28

申请号：US332592

申请日：1994-10-31

申请人： Ynjiun P. Wang ,  Paul P. Ju

发明人： Ynjiun P. Wang ,  Paul P. Ju

IPC分类号： G06K7/015 ,  G06K7/10

CPC分类号： G06K7/1092 ,  G06K7/10564 ,  G06K7/10722 ,  G06K7/10752 ,  G06K7/10851

摘要： Dataform readers and methods provide operation with a sequence of overlapping exposure periods for successive lines of sensor elements of an array. Also, the exposure periods for successive lines of sensor elements, or successive subsets of lines, can be independently determined. In operation of a dataform reader illumination of a target area is turned on before exposure of the first line of sensor elements, each line of sensor elements is exposed by reflected illumination in an exposure period which overlaps with the exposure period of one or more other lines, and illumination is then turned off. Using a CMOS construction, for example, the level of image signals read from one line of sensor elements is referred to a look-up table to determine an appropriate exposure period for a subsequent line or lines of elements of an array. This process is repeated to achieve exposure periods adjusted for localized exposure conditions for each successive line or subset of lines of sensor elements.

摘要翻译： 数据格式读取器和方法为阵列的传感器元件的连续行提供了一系列重叠曝光周期的操作。 此外，可以独立地确定传感器元件的连续线或连续的子集的曝光周期。 在数据形式的操作中，在曝光第一行传感器元件之前，目标区域的读取器照明被打开，每一行传感器元件在与一个或多个其它行的曝光周期重叠的曝光时间段内被反射照明曝光 ，然后关闭照明。 使用CMOS结构，例如，从一行传感器元件读取的图像信号的电平被称为查找表，以确定阵列的后续行或元素线的适当曝光周期。 重复该过程以实现针对传感器元件的每个连续行或子集的局部曝光条件调整的曝光周期。

公开(公告)号：US5481103A

公开(公告)日：1996-01-02

申请号：US280490

申请日：1994-07-26

申请人： Ynjiun P. Wang

发明人： Ynjiun P. Wang

IPC分类号： G06K7/00 ,  G06K19/06

CPC分类号： G06K19/06075 ,  G06K19/06028 ,  G06K19/06037

摘要： A machine readable code in a form such as a bar code uses self-addressed address/data packets which can be positioned in arbitrary orders and configurations. Additional benefits, such as ability to use extended scan angles for decoding and reduction in required code management data, also result from the self-contained nature of the address/data packet components of packet codes. A sequence of data is separated into units of data which are encoded in data portions of packets each also including an address portion which identifies the position of such data unit relative to the original sequence of data. The individual packets may then be positioned in a wide variety of configurations, rectangular and otherwise, with the individual packets in any order, sequential or otherwise. Even where packets are aligned in an extended row, the usable scan angle range is determined by the width to height aspect ratio of individual packets and not limited by the much higher aspect ratio of the row of packets. Methods and systems for encoding and decoding packet codes are described.

摘要翻译： 诸如条形码之类的机器可读代码使用可以以任意顺序和配置定位的自寻址地址/数据分组。 另外的好处，例如使用扩展扫描角度进行解码和减少所需代码管理数据的能力也是由分组代码的地址/数据分组组件的独立性质产生的。 数据序列被分成数据单元，它们被编码在数据包的数据部分中，每个数据部分还包括一个地址部分，该地址部分标识这个数据单元相对于原始数据序列的位置。 然后可以按照任何顺序或其他顺序将各个分组以各种各样的配置（矩形或其他方式）与各个分组进行定位。 即使在分组在延伸行中对齐的情况下，可用的扫描角度范围由单个分组的宽高比宽高比来确定，并且不受分组行高得多的纵横比的限制。 描述了用于编码和解码分组码的方法和系统。