发明名称 |
Video display apparatus with scan conversion and reversion and a video display method using scan conversion and reversion |
摘要 |
A video signal of an interlaced scanning system having 525 scanning lines and a vertical scanning frequency of 60 Hz is converted to a video signal having 1050 scanning lines and a vertical scanning frequency of 120 Hz, for displaying an image by bidirectional scanning. A vertical synchronizing signal is subjected to offset processing by a ¼ horizontal scanning period when an odd field is started, thereby keeping interlaced relation between odd and even fields. The vertical synchronizing signal is subjected to offset processing by a ½ horizontal scanning period every frame, so that the scanning direction for each scanning line is reversed every frame.
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申请公布号 |
US6429899(B1) |
申请公布日期 |
2002.08.06 |
申请号 |
US19990351847 |
申请日期 |
1999.07.13 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NIO YUTAKA;OKUMURA NAOJI;TERAI KATSUMI;TANAKA KAZUTO;OKAMOTO SATOSHI;FUJITA MASAAKI;MIYATA MINORU |
分类号 |
H04N3/16;G09G1/16;H04N3/30;H04N5/44;H04N7/01;(IPC1-7):H04N11/00 |
主分类号 |
H04N3/16 |
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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