The invention discloses a VGA signal line transmission system and method, video output cable transmission system with series resistance and shunt resistance, series resistance and parallel resistance are variable resistor, variable resistor is arranged after the video output cable current feedback amplifier. By changing the output resistance of the cable to compensate, so as to achieve the matching resistance of series resistance is adjusted to adjust the signal contrast; on the parallel resistance adjustment, adjust the brightness. By adjusting the resistance value of the output cable, the video output signal is clear and fluent.
【技术实现步骤摘要】
【技术保护点】
一种VGA信号长线传输系统,包括至少一路视频输出电缆,所述视频输出电缆上串联有串联电阻,其特征在于,所述的串联电阻为可变电阻。
【技术特征摘要】
【专利技术属性】
技术研发人员:张爱军,曹伟,徐兴建,王金柱,
申请(专利权)人:北京竞业达数码科技有限公司,
类型:发明
国别省市:11[中国|北京]
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