发明名称 |
Video monitor color control system. |
摘要 |
<p>A video monitor color control system including means for calibrating the intensity response of CRT phosphor sets to each of a plurality of electron gun control levels. Provided is a processor (24) that generates a sequence of discrete DAC signals, each DAC signal identifying an electron gun and a DAC value for driving the electron gun at a selected control level. Also provided is a monitor driver (22) connected to the processor (24) and to the monitor (20) and controllable in response to a DAC signal for driving the electron gun identified by the DAC signal at the control level identified by the DAC signal. The driven electron gun excites the associated phosphor set. A sensor (28) is provided for detecting the luminous intensity level of the phosphor excited by the electron gun, and for converting the detected intensity into a representative signal. The processor (24) receives for each discrete DAC signal the representative signals produced by the sensor and generates a look-up table for each gun defining intensity levels for each of the plurality of electron gun control levels.</p> |
申请公布号 |
EP0313795(A1) |
申请公布日期 |
1989.05.03 |
申请号 |
EP19880115230 |
申请日期 |
1988.09.16 |
申请人 |
TEKTRONIX, INC. |
发明人 |
MCMANUS, PAUL ALBERT;BEATON, ROBERT JOHN |
分类号 |
G09G1/28;G09G5/00;G09G5/02;H04N5/68;H04N9/18;H04N9/73;H04N17/04 |
主分类号 |
G09G1/28 |
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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