公开(公告)号：US5241164A

公开(公告)日：1993-08-31

申请号：US970654

申请日：1992-10-30

申请人： Theodosios Pavlidis ,  Joseph Cai ,  Frederick Schuessler ,  Jiali D. Chen

发明人： Theodosios Pavlidis ,  Joseph Cai ,  Frederick Schuessler ,  Jiali D. Chen

IPC分类号： G06K7/016 ,  G06K7/14

CPC分类号： G06K7/1491 ,  G06K7/0166 ,  G06K7/14

摘要： A method for decoding bar code symbols in which a bar code reader and associated components scan a bar code symbol produce a representation of the symbol, and attempt to decode that representation in order to produce a character message. The method consists of the steps of storing a first representation of the bar code symbol corresponding to a first scan path through a first portion of said symbol smaller than the entire symbol, and storing a second representation of the bar code symbol corresponding to a second scan path through the symbol. The method then processes these representations in the event a successful decode has not taken place by utilizing the signal from a first scan with the signal from a subsequent scan to determine whether the information from successive scans can be concatenated to form a combined signal. The process is repeated with different subsequent scans until successful decoding of the combined signal. Specifically, timing information associated with the flying beam spot as it scans the bar code symbol in successive scan paths is used to determine where the scans will be stitched together.

摘要翻译： 用于解码条形码符号的方法，其中条形码读取器和相关联的部件扫描条形码符号产生符号的表示，并尝试对该表示进行解码以产生字符消息。 该方法包括以下步骤：将与第一扫描路径相对应的条形码符号的第一表示存储在小于整个符号的所述符号的第一部分上，并且存储对应于第二扫描的条形码符号的第二表示 通过符号的路径。 该方法然后在通过利用来自后续扫描的信号的第一次扫描的信号来确定来自连续扫描的信息是否可以级联以形成组合信号的情况下未发生成功解码的情况下处理这些表示。 以不同的后续扫描重复该过程，直到组合信号的成功解码。 具体地说，在扫描连续扫描路径中的条形码符号时，使用与飞行光点相关联的定时信息来确定扫描将在哪里缝合在一起。