Invention Grant
US07827111B2 Recording medium reproducer, cryptocommunication system and program license system
有权
记录介质再现器，密码通信系统和程序许可证系统
- Patent Title: Recording medium reproducer, cryptocommunication system and program license system
- Patent Title (中): 记录介质再现器，密码通信系统和程序许可证系统
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Application No.: US10809904Application Date: 2004-03-26
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Publication No.: US07827111B2Publication Date: 2010-11-02
- Inventor: Mitsuaki Oshima , Yoshiho Gotoh , Shinichi Tanaka , Kenji Koishi , Mitsurou Moriya , Yoshinari Takemura
- Applicant: Mitsuaki Oshima , Yoshiho Gotoh , Shinichi Tanaka , Kenji Koishi , Mitsurou Moriya , Yoshinari Takemura
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Steptoe & Johnson LLP
- Priority: JP7-261247 19951009; JP8-008910 19960123; JP8-211304 19960809
- Main IPC: G06F21/00
- IPC: G06F21/00 ; H04N7/167
Abstract:
The operating and other procedures of a disk or recording medium application system of the type for which a network is used are simplified. Disks or recording media have auxiliary data recording areas, where different IDs for individual disk, and/or cipher keys and/or decoding keys for ciphers are recorded in advance in a factory. By using the IDs to release the soft ciphers, and using the cipher keys when sending the ciphers, and using the decoding keys when receiving the ciphers, user authorization procedures are simplified.
Public/Granted literature
- US20040181489A1 Recording medium reproducer, cryptocommunication system and program license system Public/Granted day:2004-09-16
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