发明名称 |
Ghost signal eliminating system |
摘要 |
A ghost signal eliminating system which eliminates a ghost by delaying a video signal through a variable delay line by the delay time of the ghost from the true image and subtracting the delayed video signal from the original video signal. The variable delay line comprises a fine adjusting circuit for fine-adjusting the delay time and a coarse adjusting circuit for coarse-adjusting the delay time, the coarse adjusting circuit being controlled by a detection voltage for a control voltage level and the fine adjusting circuit being controlled by a voltage which is the difference between the control voltage and the detection voltage.
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申请公布号 |
US4053932(A) |
申请公布日期 |
1977.10.11 |
申请号 |
US19750636720 |
申请日期 |
1975.12.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMAGUTI, NAMIO;MIYATA, MINORU;YAMAMOTO, KEISUKE |
分类号 |
H04N5/21;(IPC1-7):H04N5/21;H04B1/12 |
主分类号 |
H04N5/21 |
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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