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    • 8. 发明申请
    • Authentication System
    • 认证系统
    • US20070294528A1
    • 2007-12-20
    • US11664822
    • 2005-10-07
    • Mamoru ShojiMasaru YamaokaTakahiro SatoShin-ichi Tanaka
    • Mamoru ShojiMasaru YamaokaTakahiro SatoShin-ichi Tanaka
    • H04L9/00
    • G06F21/10G06F21/34G06Q20/341G06Q20/40975G07F7/1008
    • An object is to achieve both the safety and convenience in authentication of an object to be authenticated which is required in various situations. An authentication system (900) includes a first authentication information transmitting device (901) having first authentication information, a second authentication information transmitting device (904) having second authentication information, and an authentication section (905) for authenticating a user or authority of the user. The second authentication information transmitting device (904) sends the second authentication information in only a period during which it receives the first authentication information sent from the first authentication information transmitting device (901). The authentication section (905) receives the second authentication information sent from the second authentication information transmitting device (904), and authenticates the user or the authority of the user based on the second authentication information.
    • 目的是为了在各种情况下需要认证的对象的身份验证的安全性和便利性。 认证系统(900)包括具有第一认证信息的第一认证信息发送装置(901),具有第二认证信息的第二认证信息发送装置(904),以及认证部(905),用于认证用户或权限 用户。 第二认证信息发送装置(904)仅在接收到从第一认证信息发送装置发送的第一认证信息的期间发送第二认证信息(901)。 认证部(905)接收从第二认证信息发送装置(904)发送的第二认证信息,并且基于第二认证信息认证用户或用户的权限。
    • 9. 发明授权
    • Information recording medium, recording apparatus, and reproduction apparatus
    • 信息记录介质,记录装置和再现装置
    • US07136335B2
    • 2006-11-14
    • US10408746
    • 2003-04-07
    • Takashi YumibaMasaru YamaokaTakahiro Nagai
    • Takashi YumibaMasaru YamaokaTakahiro Nagai
    • G11B7/00
    • G11B20/00594G11B20/00086G11B20/00586
    • An information recording medium for recording main information and auxiliary information is provided. The auxiliary information is recorded on the information recording medium in a manner that edge positions of the pits or the recording marks indicating the main information are shifted either in a phase advancing direction or in a phase delaying direction along the track direction. A predetermined frequency is used to determine whether the edge position is shifted in the phase advancing direction or in the phase delaying direction in order to record the auxiliary information. The predetermined frequency is substantially consistently lower than ½ of a reference frequency of a recording clock for creating the pits or the recording marks and is higher than a response frequency of a PLL for generating a reproduction clock for reproducing the main information.
    • 提供用于记录主信息和辅助信息的信息记录介质。 辅助信息被记录在信息记录介质上,使得指示主信息的凹坑或记录标记的边缘位置沿着轨道方向在相位前进方向或相位延迟方向上偏移。 为了记录辅助信息,使用预定频率来确定边缘位置是否在相位前进方向或相位延迟方向上偏移。 预定频率基本上始终低于用于产生凹坑或记录标记的记录时钟的参考频率的1/2,并且高于用于产生用于再现主信息的再现时钟的PLL的响应频率。