发明授权
US07742681B2 Scrambling content information in a first recording medium when downgrading the quality of content information for storage on a second recording medium
失效
在降低用于存储在第二记录介质上的内容信息的质量时，在第一记录介质中加扰内容信息
- 专利标题： Scrambling content information in a first recording medium when downgrading the quality of content information for storage on a second recording medium
- 专利标题（中）： 在降低用于存储在第二记录介质上的内容信息的质量时，在第一记录介质中加扰内容信息
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申请号： US11124298申请日： 2005-05-09
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公开(公告)号： US07742681B2公开(公告)日： 2010-06-22
- 发明人: Kenji Yamagata , Hiroshi Nakamura , Kyotaro Sato , Kenichiro Tada , Tomohiro Miura , Toshiro Tanikawa , Ken Miyagawa , Takashi Aoki , Shinya Hashimoto
- 申请人： Kenji Yamagata , Hiroshi Nakamura , Kyotaro Sato , Kenichiro Tada , Tomohiro Miura , Toshiro Tanikawa , Ken Miyagawa , Takashi Aoki , Shinya Hashimoto
- 申请人地址： JP Tokyo
- 专利权人： Pioneer Corporation
- 当前专利权人： Pioneer Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Young & Thompson
- 优先权： JP2004-138444 20040507
- 主分类号： H04N5/76
- IPC分类号： H04N5/76
摘要：
An information record apparatus includes: a down-convert device for down-converting a first content information having a first reproduction quality (HD) into a second content information having a second reproduction quality (SD) which is lower quality than the first reproduction quality; a scramble device for generating scramble information by scrambling the first content information, on the basis of a predetermined scramble key; and a first record device for recording the second content information and the scramble information into a first record medium.
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