发明授权
US5796090A Microfilm reader for high density, two dimensional bar code symbology 失效
用于高密度,二维条码符号系统的微胶片阅读器

Microfilm reader for high density, two dimensional bar code symbology
摘要:
A microfilm reader, which includes a bar code scanner, a controller, and a keyboard, receives microfilm containing documents and corresponding bar code symbols. Each bar code symbol contains data describing the contents of a respective document. The bar code scanner reads the bar code symbols located on the microfilm and transmits data representing the read bar code symbols to the controller. The controller determines whether the data received from the bar code scanner satisfies search criteria entered into the keyboard.
信息查询
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