发明名称 |
Color video drive circuit |
摘要 |
A gain control and signal conversion stage in a data converter for a color video CRT display system is disclosed. The disclosed circuit includes capacitors for supplying current at a selected output voltage level, voltage followers for charging the capacitors, and modulators for forming low-level analog color signals for control of video amplifiers in a color CRT display. Digital control of video brightness or contrast and precise color tracking are features which are discussed.
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申请公布号 |
US4630100(A) |
申请公布日期 |
1986.12.16 |
申请号 |
US19840637082 |
申请日期 |
1984.08.02 |
申请人 |
NCR CORPORATION |
发明人 |
DELSIGNORE, II, JAMES R.;SHEEHAN, PAUL;FRIEDMAN, ROBERT H. |
分类号 |
G09G1/00;G09G1/28;G09G5/02;(IPC1-7):H04N9/64 |
主分类号 |
G09G1/00 |
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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