发明申请
- 专利标题: Video signal transmitting apparatus and video signal receiving apparatus
- 专利标题(中): 视频信号发送装置和视频信号接收装置
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申请号: US11819199申请日: 2007-06-26
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公开(公告)号: US20070248320A1公开(公告)日: 2007-10-25
- 发明人: Toshimitsu Watanabe , Hitoaki Owashi , Kazuhiko Yoshizawa
- 申请人: Toshimitsu Watanabe , Hitoaki Owashi , Kazuhiko Yoshizawa
- 申请人地址: JP Tokyo
- 专利权人: HITACHI, LTD.
- 当前专利权人: HITACHI, LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2001-094528 20010329
- 主分类号: H04N9/79
- IPC分类号: H04N9/79
摘要:
An interface is realized that can prevent video signals from being copied easily and which uses a luminance/color difference signal transmission scheme with an excellent harmony with a television circuit. In a video transmission using a digital interface, colorimetry information for defining the conversion from the luminance/color difference signal into a primary color signal and video aspect ratio information are transmitted along with the luminance/color difference type video signal. This allows reproduction of video with high quality and high resolution and also realizes a copyright protection which allows only the users authorized by key information to use the content of the video. With this transmission scheme, it is possible to provide a transmitting apparatus, a receiving apparatus and an interface which highly harmonize with a rationalized television-based circuit.