发明名称 Variable color digital multimeter
摘要 A multimeter with variable color digital display indicates measured values in a digital format and in a variable color. The multimeter includes a color control circuit for controlling the color of the digital display in accordance with the measurement quantity, method, unit, mode, function, range, location, modifier, control, limits, and the like. A color converter circuit is disclosed for converting analog voltage to variable color.
申请公布号 US5122733(A) 申请公布日期 1992.06.16
申请号 US19900628328 申请日期 1990.12.14
申请人 HAVEL, KAREL 发明人 HAVEL, KAREL
分类号 G01R13/02;G01R13/26;G01R13/40;G01R15/12;G09G3/14 主分类号 G01R13/02
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