发明名称 General purpose data terminal system with display line refreshing and keyboard scanning using pulsewidth modulation
摘要 A General purpose terminal system included microprocessor-controlled line refresh apparatus wherein an internal address table is updated, in real time, to control the line refreshing of the CRT display; a pulse width modulated serial keyboard scanning apparatus; and smooth scrolling/double-height/double-width apparatus.
申请公布号 US4434472(A) 申请公布日期 1984.02.28
申请号 US19800220279 申请日期 1980.12.29
申请人 FALCO DATA PRODUCTS 发明人 KACHUN, LEE
分类号 G09G5/26;G09G5/34;(IPC1-7):G06F3/02;G06F3/15 主分类号 G09G5/26
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