发明名称 |
Television signal scan conversion system with reduced noise sensitivity |
摘要 |
A television signal receiver processes a television signal representing a letterbox image display format with a main image region, and a bar region containing auxiliary "helper" information to help convert from interlaced to progressive scanning. In the presence of image motion, a main image component and the helper component are combined and conveyed to a video processor. In the absence of motion, other image information, e.g., field repeated information, is conveyed to the video processor. The information conveyed to the video processor is determined by a switching network responsive to an control signal from a motion detector which senses low frequency luminance image information substantially exclusive of high frequency image information.
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申请公布号 |
US5225907(A) |
申请公布日期 |
1993.07.06 |
申请号 |
US19920857899 |
申请日期 |
1992.03.26 |
申请人 |
RCA THOMSON LICENSING CORPORATION |
发明人 |
CASAVANT, SCOTT D.;PERLMAN, STUART S. |
分类号 |
H04N7/01;H04N7/00;H04N7/08;H04N7/081;H04N11/00 |
主分类号 |
H04N7/01 |
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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