公开(公告)号：EP2382583A2

公开(公告)日：2011-11-02

申请号：EP09835659.5

申请日：2009-12-18

申请人： Datalogic Scanning, Inc.

发明人： OLMSTEAD, Brian L. ,  WENLIANG, Gao

IPC分类号： G06K7/10 ,  G06K9/20

CPC分类号： H04N5/2354 ,  H04N5/23248 ,  H04N5/2329

摘要： A data reader preferably includes an imaging device that operates on a rolling reset basis to capture images of a moving target (540). Images of moving targets (540) are preferably analyzed to determine the ambient light intensity, and a processor (470) in the data reader preferably adjusts operation of the imager and of a light source (460) based on the intensity of the ambient light. Other data readers may use an imager with a mechanical shutter (1200) that is designed for rapid, frequent operation.