发明授权
US5442398A Method and apparatus for transmitting a video signal, and apparatus for
receiving a video signal
失效
用于发送视频信号的方法和装置，以及用于接收视频信号的装置
- 专利标题： Method and apparatus for transmitting a video signal, and apparatus for receiving a video signal
- 专利标题（中）： 用于发送视频信号的方法和装置，以及用于接收视频信号的装置
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申请号： US88031申请日： 1993-07-06
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公开(公告)号： US5442398A公开(公告)日： 1995-08-15
- 发明人: Natsuki Koshiro , Tatsuya Ishikawa
- 申请人： Natsuki Koshiro , Tatsuya Ishikawa
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX4-177266 19920706
- 主分类号： H04N5/265
- IPC分类号： H04N5/265 ; H04N5/44 ; H04N7/08 ; H04N7/081 ; H04N7/26 ; H04N7/46 ; H04N21/2365 ; H04N21/434 ; H04N7/12
摘要：
A video transmission apparatus that has a first input terminal for receiving a low-resolution TV signal. The apparatus also has a second input terminal for receiving a high-resolution TV signal and for outputting said high-resolution TV signal. The apparatus converts the low-resolution TV signal into a signal having a format which is equal to that of the high-resolution TV signal. The apparatus selects either the signal, which has been produced by converting low-resolution TV signal into a signal having a format which is equal to that of the high-resolution TV signal, or the high-resolution TV signal, which is outputted from the second input terminal The signal, which has been produced by converting low-resolution TV signal into a signal having a format which is equal to that of the high-resolution TV signal, is fitted into the high-resolution TV signal. The apparatus encodes the selected signal into a digital high-efficiency coded signal, and outputs a signal indicative thereof. Finally, the apparatus transmits the signal produced by encoding the selected signal.
公开/授权文献
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