发明授权
- 专利标题: Computer and program recording medium
- 专利标题(中): 计算机和程序记录介质
-
申请号: US09673422申请日: 2000-02-21
-
公开(公告)号: US07146498B1公开(公告)日: 2006-12-05
- 发明人: Hideaki Takechi , Masazumi Yamada , Hiroyuki Iitsuka , Takuya Nishimura , Yoshiki Kuno , Shoichi Gotoh
- 申请人: Hideaki Takechi , Masazumi Yamada , Hiroyuki Iitsuka , Takuya Nishimura , Yoshiki Kuno , Shoichi Gotoh
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: RatnerPrestia
- 优先权: JPH11-043870 19990222
- 国际申请: PCT/JP00/00956 WO 20000221
- 国际公布: WO00/50989 WO 20000831
- 主分类号: H04L9/00
- IPC分类号: H04L9/00 ; H04K1/00
摘要:
The problem to be solved is that once copyright claimed AV data is passed to application software, the application software can freely process the AV data for recording, etc., defeating the purpose of copyright protection. The invention provides a computer which comprises a system section 12 and an application software section 13, and which takes in copyright claimed, encrypted data via a digital interface 1 for processing therein, wherein the system section 12 judges that the application software section 13 is legitimate application software for the protection of copyright, and if the application software is a legitimate one, the system section 12 passes a key for the encrypted data to the application software section 13.