发明名称 |
Video signal emphasis and deemphasis method and apparatus. |
摘要 |
<p>An input video signal is applied to a transmission line first through a time direction emphasizer for emphasizing the levels of time direction high frequency components of the video signal, relative to the levels of low frequency components thereof; secondary through a vertical direction emphasizer; and thirdly through a horizontal direction emphasizer. Further, the received video signal is outputted as an output video signal from the transmission line first through a horizontal direction deemphasizer for deemphasizing the levels of horizontal direction high frequency components of the video signal, relative to the levels of low frequency components thereof; secondary through a vertical direction deemphasizer; and thirdly through a time direction deemphasizer. The emphasis and deemphasis method enables the dynamic range of the transmission line to be utilized effectively, while preventing erroneous operation on the reception side. <IMAGE></p> |
申请公布号 |
EP0604154(A2) |
申请公布日期 |
1994.06.29 |
申请号 |
EP19930310291 |
申请日期 |
1993.12.20 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
HIRAYAMA, RYO;KOBAYASHI, KAORU |
分类号 |
H04N5/783;H04N5/923;H04N5/937;H04N9/793;H04N9/81;(IPC1-7):H04N5/92 |
主分类号 |
H04N5/783 |
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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