公开(公告)号：US07059527B2

公开(公告)日：2006-06-13

申请号：US11005272

申请日：2004-12-06

申请人： Barry M. Mergenthaler ,  Paul Oliver Detwiler ,  John Kenneth Burkey ,  Yeming Gu

发明人： Barry M. Mergenthaler ,  Paul Oliver Detwiler ,  John Kenneth Burkey ,  Yeming Gu

IPC分类号： G02B26/10

CPC分类号： G06K7/1096 ,  G06K7/10792

摘要： Techniques for using imaging information computed from examining a scanner signal are described. When one or more objects passes within a field of view of a scanner, scan patterns emerging from one or more scanner windows and reflected from the objects back into the scanner windows produce one or more scanner signals. The scanner signals are processed to obtain beam position and beam length information to improve the accuracy of bar code decoding and to compute imaging information for objects within the field of view of the scanner. The imaging information for the objects is compared with bar code information for the objects. The expected number, size and shapes of objects indicated by the bar code information is compared with the actual number, size and shapes of objects in order to determine if valid scans occurred or if missed, double or otherwise erroneous scans occurred.

摘要翻译： 描述了使用从检查扫描仪信号计算出的成像信息的技术。 当一个或多个物体在扫描仪的视野内通过时，从一个或多个扫描器窗口出现并从物体反射回扫描仪窗口的扫描图案产生一个或多个扫描器信号。 处理扫描仪信号以获得波束位置和波束长度信息，以提高条形码解码的精度并计算扫描仪视野内的物体的成像信息。 将对象的成像信息与对象的条形码信息进行比较。 将条形码信息指示的物体的预期数量，大小和形状与物体的实际数量，大小和形状进行比较，以确定是否发生有效扫描，或者是否发生错误，双重或其他错误扫描。

公开(公告)号：US06827266B2

公开(公告)日：2004-12-07

申请号：US10264798

申请日：2002-10-04

申请人： Barry M. Mergenthaler ,  Paul Oliver Detwiler ,  John Kenneth Burkey ,  Yeming Gu

发明人： Barry M. Mergenthaler ,  Paul Oliver Detwiler ,  John Kenneth Burkey ,  Yeming Gu

IPC分类号： G06K710

CPC分类号： G06K7/1096 ,  G06K7/10792

摘要： Techniques for using imaging information computed from examining a scanner signal are described. When one or more objects passes within a field of view of a scanner, scan patterns emerging from one or more scanner windows and reflected from the objects back into the scanner windows produce one or more scanner signals. The scanner signals are processed to obtain beam position and beam length information to improve the accuracy of bar code decoding and to compute imaging information for objects within the field of view of the scanner. The imaging information for the objects is compared with bar code information for the objects. The expected number, size and shapes of objects indicated by the bar code information is compared with the actual number, size and shapes of objects in order to determine if valid scans occurred or if missed, double or otherwise erroneous scans occurred.