发明授权
US6123264A Apparatus and method for determining a distance to a target 失效
用于确定到目标​​的距离的装置和方法

Apparatus and method for determining a distance to a target
摘要:
A range finder for use with a bar code scanner. An image of a scan line is detected by a sensor array. Distance from the scanner to the bar code symbol is determined from the length of the detected scan line image.
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