发明名称 |
Video signal processing apparatus and signal transmitting method |
摘要 |
RGB signals and sync signals H and V are inputted from a personal computer or the like. Additional information is superimposed to a vertical blanking period of the R signal. A timing generating unit generates a sampling pulse on the basis of the sync signals. A data extracting unit extracts the additional information by using the pulse. Processes such as discrimination of a category of the additional information and a parity check are executed by an information decoding unit. A converter converts the RGB signals into an NTSC signal. VBI data and a copy prevention signal are formed in response to a decoded result of the information decoding unit. The VBI data and copy prevention signal are superimposed to the NTSC signal in adders.
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申请公布号 |
US6268889(B1) |
申请公布日期 |
2001.07.31 |
申请号 |
US19970921927 |
申请日期 |
1997.08.27 |
申请人 |
SONY CORPORATION |
发明人 |
KOORI TERUHIKO |
分类号 |
H04N5/91;H04N5/781;H04N5/85;H04N5/913;H04N7/08;H04N7/081;H04N7/083;H04N7/084;H04N7/085;H04N7/087;H04N7/088;H04N9/79;H04N9/804;(IPC1-7):H04N9/65;H04N9/76;H04N7/167 |
主分类号 |
H04N5/91 |
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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