发明名称 |
Device for transparently displaying characters in a video system by forming a weighted average of a video signal and the video signal after text has been inserted |
摘要 |
A device for displaying characters in a video system, the characters being able to be displayed transparently against a background consisting of the normal television image. The device inserts the text into the original video signal, then forms the weighted average of the signal including the text and the original video signal.
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申请公布号 |
US5602600(A) |
申请公布日期 |
1997.02.11 |
申请号 |
US19960643585 |
申请日期 |
1996.05.06 |
申请人 |
THOMSON CONSUMER ELECTRONICS |
发明人 |
QUEINNEC, OLIVIER |
分类号 |
H04N5/278;H04N5/445;(IPC1-7):H04N9/76;H04N5/265 |
主分类号 |
H04N5/278 |
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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