发明名称 |
Noise reduction system for video signal |
摘要 |
A noise reduction system for reducing noise in a video signal comprises a pre-emphasis circuit for subjecting the video signal which is supplied to a transmission system to a pre-emphasis in a vertical direction of a picture and in a direction oblique to the vertical direction, and a de-emphasis circuit for subjecting the pre-emphasized video signal obtained through the transmission system to a de-emphasis complementary to the pre-emphasis.
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申请公布号 |
US4750037(A) |
申请公布日期 |
1988.06.07 |
申请号 |
US19860915816 |
申请日期 |
1986.10.06 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
KIDO, KOICHI;MATSUO, YASUTOSHI |
分类号 |
H04N5/923;(IPC1-7):H04N5/21 |
主分类号 |
H04N5/923 |
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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