发明授权
- 专利标题： Apparatus for reading a bar code
- 专利标题（中）： 读取条形码的装置
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申请号： US654676申请日： 1996-05-29
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公开(公告)号： US5670771A公开(公告)日： 1997-09-23
- 发明人: Mitsuo Watanabe , Shinichi Sato , Ichiro Shinoda
- 申请人： Mitsuo Watanabe , Shinichi Sato , Ichiro Shinoda
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX7-227822 19950905
- 主分类号： G06K7/00
- IPC分类号： G06K7/00 ; G06K7/10 ; G06K7/14
摘要：
A DMA controller DMA-transfers a bar width data set generated by a bar width counter to an external RAM. The DMA controller simultaneously DMA-transfers the bar width data set written in the external RAM to an internal RAM. An MPU reads the bar width data set written in the internal RAM at a high speed and demodulates the read bar width data set between the reading processes.
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