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11. 发明申请

WO2007111761A3 AUTOMATIC EXPOSURE SYSTEM FOR IMAGING-BASED BAR CODE READER 审中-公开
公开(公告)号：WO2007111761A3
公开(公告)日：2007-10-04
申请号：PCT/US2007/000511
申请日：2007-01-09
申请人： SYMBOL TECHNOLOGIES, INC. , JOSEPH, Eugene, B. , CARLSON, Bradley, S.
发明人： JOSEPH, Eugene, B. , CARLSON, Bradley, S.
IPC分类号： G06K7/10
摘要： An automatic exposure system for an imaging-based bar code reader. The automatic identification system includes: an aiming apparatus generating a beam to aid in aiming the system at a target object when the system is actuated; an imaging system including a pixel array, a focusing lens to focus an image of the target object onto the pixel array; and an automatic exposure system to determine an integration time for capturing an image of the target object. The automatic exposure system, determines an integration time by: projecting an aiming pattern on the target object and capturing an image of the aiming pattern; determining a target distance from the imaging system to the target object based on a location of the aiming pattern within the captured image; determining a gain-integration time product utilizing an equation wherein the gain-integration time product is a function of a predetermined target image brightness and the target distance; and determining the integration time by selecting a gain value and solving for integration time given the gain-integration time product.

12. 发明申请

WO2010120633A1 FRACTIONAL DOWN-SAMPLING IN IMAGING BARCODE SCANNERS 审中-公开
标题翻译：成像扫描仪中的下降采样
公开(公告)号：WO2010120633A1
公开(公告)日：2010-10-21
申请号：PCT/US2010/030463
申请日：2010-04-09
申请人： SYMBOL TECHNOLOGIES, INC. , HE, Duanfeng , CARLSON, Bradley, S. , DRZYMALA, Mark
发明人： HE, Duanfeng , CARLSON, Bradley, S. , DRZYMALA, Mark
IPC分类号： G06K7/10
CPC分类号： G06K7/10722 , G06K7/10851
摘要： A method of improving the performance of an imaging reader includes (1) illuminating a symbol by projecting illuminating light on the symbol from the imaging reader, (2) capturing return light form the symbol as pixel data over a two-dimensional field of view of a solid-state imager having a matrix of image sensors, (3) reducing the number of pixels to generate reduced pixel data, (4) transmitting the reduced pixel data to a decoding circuit.
摘要翻译：一种提高成像读取器的性能的方法包括：（1）通过从成像读取器将符号投射照明光来照亮符号，（2）在二维视场中将作为像素数据的返回光形成为像素数据，具有图像传感器矩阵的固态成像器，（3）减少像素数以产生减少的像素数据，（4）将缩小像素数据传送到解码电路。

13. 发明申请

WO2005008565B1 SYSTEM AND METHOD FOR READING AND DECODING OPTICAL CODES USING MULTIPLE COLOR ILLUMINATION 审中-公开
标题翻译：使用多种颜色照明读取和解码光学编码的系统和方法
公开(公告)号：WO2005008565B1
公开(公告)日：2005-03-31
申请号：PCT/US2004023172
申请日：2004-07-16
申请人： SYMBOL TECHNOLOGIES INC , CARLSON BRADLEY S
发明人： CARLSON BRADLEY S
IPC分类号： G06K7/10 , G06K7/12
CPC分类号： G06K7/10851 , G06K7/10732
摘要： An optical code reading system and method are provided for reading and decoding an optical code. The system includes a plurality of light sources, a color image sensor, a processor and a decoder. Each light source produces a unique wavelength/color of light to illuminate the optical code, such as a direct mark optical code. The image sensor detects the reflected light from the optical code and generates an integrated multi-colored image. The processor separates the integrated image into individual color channels, where each color channel includes data representative of the imaged optical code in one color. The processor analyzes the contrast for each color channel and determines which color channel has the optimum contrast. The data corresponding to the color channel having the optimum contrast is then decoded by a decoder.
摘要翻译：提供了用于读取和解码光学代码的光学代码读取系统和方法。该系统包括多个光源，彩色图像传感器，处理器和解码器。每个光源产生独特的波长/颜色的光以照亮光学代码，例如直接标记光学代码。图像传感器检测来自光学代码的反射光，并产生一个集成的多色图像。处理器将集成的图像分离成单独的颜色通道，其中每个颜色通道包括表示一种颜色的成像光学代码的数据。处理器分析每个颜色通道的对比度，并确定哪个颜色通道具有最佳对比度。对应于具有最佳对比度的彩色通道的数据由解码器解码。

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