发明名称 |
Pull-down signal detecting apparatus, pull-down signal detecting method, and interlace-progressive converter |
摘要 |
According to the invention, a pull-down signal detecting apparatus includes: an interfield motion detecting module configured to determine whether or not an interfield motion between a first field signal and a second field signal exists by comparing a first counted number with a first threshold; an interframe motion determining module configured to determine whether or not an interframe motion between the first field signal and a third field signal exists by comparing a second counted number with a second threshold; a determination module configured to determine whether or not the video signal is pull-down signal based on the determination result of the interfield motion determining module and the interframe motion determining module; and a threshold control module configured to vary the first threshold, when the determination result of the interframe motion determining module corresponds with a second pull-down pattern and when the determination result of the interfield motion determining module does not correspond to a first pull-down pattern.
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申请公布号 |
US7728908(B2) |
申请公布日期 |
2010.06.01 |
申请号 |
US20090393939 |
申请日期 |
2009.02.26 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
TOKUTOMI HIDEAKI |
分类号 |
H04N3/36;H04N5/46;H04N7/01;H04N9/11;H04N9/64;H04N11/20 |
主分类号 |
H04N3/36 |
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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