公开(公告)号：WO2007115260A2

公开(公告)日：2007-10-11

申请号：PCT/US2007/065790

申请日：2007-04-02

Applicant: DATALOGIC SCANNING, INC.

Inventor： MCQUEEN, Alexander M. ,  TURKAL, Randy J.

IPC: G06K7/10

CPC classification number: G03B7/093 ,  H04N5/2353

Abstract: A data reader (50) such as for example an imaging reader with a CCD or CMOS imager or the like, that acquires an image of an item to be read. A certain type of sensor (5) has been found to exhibit different outputs depending upon the light intensity level, namely a standard output (20) whereby the sensor outputs a signal corresponding to the image collected; and an inverted output (30) whereby the sensor outputs an inverted signal when the light intensity highly saturates the sensor. Taking advantage of this inverted output, systems and methods are then employed by the data reader to convert or otherwise re-invert this inverted signal in order to read an optical code that, for example, might otherwise have been above the upper exposure limit of the sensor/reader and thus not decodable.

Abstract translation: 数据读取器（50），例如具有CCD或CMOS成像器等的成像读取器，其获取待读取的项目的图像。 已经发现某种类型的传感器（5）根据光强度级别呈现不同的输出，即标准输出（20），由此传感器输出与所收集的图像相对应的信号; 和反相输出（30），由此当光强度使传感器高度饱和时，传感器输出反相信号。 利用该反相输出，数据读取器利用系统和方法来转换或以其他方式重新反转该反相信号，以便读取例如可能已经高于 传感器/读卡器，因此不能解码。