发明名称 |
Screen-noise eliminating apparatus and cathode-ray tube display apparatus |
摘要 |
A screen-noise eliminating apparatus including beam-spot-length control means for increasing or decreasing the vertical length of a beam spot on a display screen generated by an electron of a cathode-ray tube for displaying a TV signal; vertical enhancement means for enhancing a given vertical-direction spatial frequency characteristic of said TV signal; and noised elimination control means for controlling said beam-spot-length control means and said vertical enhancement means so as to compensate according to the increase of decrease of said beam spot length.
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申请公布号 |
US2002030761(A1) |
申请公布日期 |
2002.03.14 |
申请号 |
US20010909951 |
申请日期 |
2001.07.23 |
申请人 |
HIBI TAKETOSHI;SASAKI HIROSHI |
发明人 |
HIBI TAKETOSHI;SASAKI HIROSHI |
分类号 |
H04N3/26;H04N3/32;H04N3/34;(IPC1-7):H04N5/217 |
主分类号 |
H04N3/26 |
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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