发明名称 |
Apparatus for reading a bar code |
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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申请公布号 |
US5670771(A) |
申请公布日期 |
1997.09.23 |
申请号 |
US19960654676 |
申请日期 |
1996.05.29 |
申请人 |
FUJITSU LIMITED |
发明人 |
WATANABE, MITSUO;SATO, SHINICHI;SHINODA, ICHIRO |
分类号 |
G06K7/00;G06K7/10;G06K7/14;(IPC1-7):G06K7/10 |
主分类号 |
G06K7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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