发明授权
- 专利标题： Television signal transmission system
- 专利标题（中）： 电视信号传输系统
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申请号： US578528申请日： 1984-02-09
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公开(公告)号： US4660072A公开(公告)日： 1987-04-21
- 发明人: Takahiko Fukinuki
- 申请人： Takahiko Fukinuki
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX58-44238 19830318
- 主分类号： H04N11/12
- IPC分类号： H04N11/12 ; H04N5/92 ; H04N7/12 ; H04N11/02 ; H04N11/24 ; H04N11/14
摘要：
A television signal transmission system is improved to be able to transmit a video signal having a frequency band wider than existing transmission frequency bands while maintaining compatibility with existing television systems. On the sending side, a wide-band luminance signal is frequency-shifted and inserted into a vacant frequency spectrum of a television signal in the existing television systems before transmission.
公开/授权文献
- US3993050A Spirometer 公开/授权日：1976-11-23