发明名称 |
Wide-screen TV signal transmission apparatus. |
摘要 |
<p>A wide-screen TV signal transmission apparatus at the transmitting side comprises: wide-screen TV signal generator to generate a wide-screen TV signal source; scanning line converter for down-converting a wide-screen TV signal with integer conversion ratio to obtain a conventional TV-compatible signal with upper and bottom black bars; vertical augmentation signal generator to generate vertical augmentation signal to enhance the vertical resolution at the receiving side; adder to add a conventional TV-compatible signal and a vertical augmentation signal to obtain a conventional TV-compatible composed signal; and transmitter to transmit a conventional TV-compatible composed signal. A wide-screen TV signal transmission apparatus at the receiving side comprises: video signal detector for detecting a video signal from a transmitted modulated conventional TV-compatible composed signal to obtain a base-band video signal; signal separater for separating said base-band video signal into luminance and chrominance signals with upper and bottom black bars; scan-convertor for up-converting said luminance and chrominance signals with upper and bottom black bars into luminance and chrominance signals without upper and bottom black bars with integer conversion ratio; vertical augmentation signal processor for recovering vertical augmentation signal; adder to add luminance and chrominance signals without upper and bottom black bars and vertical augmentation signal to obtain wide-screen TV signal with high vertical resolution; and display device for displaying said wide-screen TV signal with high vertical resolution.</p> |
申请公布号 |
EP0434301(B1) |
申请公布日期 |
1995.06.07 |
申请号 |
EP19900313586 |
申请日期 |
1990.12.13 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YASUMOTO, YOSHIO;KAGEYAMA, SADASHI;INOUE, SHUJI;UWABATA, HIDEYO |
分类号 |
H04N7/015;H04N7/00;H04N7/01;H04N11/24;(IPC1-7):H04N7/00;H04N11/00 |
主分类号 |
H04N7/015 |
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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