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    • 51. 发明授权
    • Content usage-right management system and management method
    • 内容使用权管理制度和管理办法
    • US07496756B2
    • 2009-02-24
    • US10415852
    • 2002-08-15
    • Makoto OkaYoshihito IshibashiHiroshi AbeNoboru ShimadaMasahiko EnariKenji Yoshino
    • Makoto OkaYoshihito IshibashiHiroshi AbeNoboru ShimadaMasahiko EnariKenji Yoshino
    • H04L9/00
    • G06Q30/06G06F21/10
    • A system in which content usage conditions can be upgraded without the need for a service provider to control content-usage rights of a user. In the system in which encrypted content is distributed and is allowed to be utilized only by authorized users, the service provider receives a content usage-right certificate from the user, and on the condition that it is determined that data is not tampered with by verifying a digital signature of an issuing entity of the content usage-right certificate, the service provider obtains user information and content purchase information of the user from the content usage-right certificate, and performs upgrade processing by, for example, changing the usage conditions. It is thus possible to change the content usage conditions without the need for the service provider to possess usage control data.
    • 可以在不需要服务提供者来控制用户的内容使用权限的情况下升级内容使用条件的系统。 在加密内容被分发且仅被授权用户被允许使用的系统中,服务提供商从用户接收内容使用权证书,并且在确定数据未被篡改的情况下通过验证 内容使用权证书的发行实体的数字签名,服务提供者从内容使用权证书中获取用户的用户信息和内容购买信息,并且通过例如改变使用条件来执行升级处理。 因此,可以在不需要服务提供者拥有使用控制数据的情况下改变内容使用条件。
    • 53. 发明申请
    • Communication System, Communication Device And Method, And Program
    • 通信系统,通信设备与方法及程序
    • US20080123599A1
    • 2008-05-29
    • US11662209
    • 2006-07-13
    • Yoshihito IshibashiSusumu KusakabeFumio KubonoShoji NagaiYuko Yoshida
    • Yoshihito IshibashiSusumu KusakabeFumio KubonoShoji NagaiYuko Yoshida
    • H04B7/216
    • H04B13/005
    • The present invention relates to a communication system, a communication device and a method, and a program, wherein appropriate communication settings according to the communication environment can be easily made. A status confirmation unit 1014 performs processing for confirmation of the status regarding communication of a transmission device 1001, i.e., regarding confirmation of the communication environment, such as the relative position relation of the transmission device 1001 and communication medium 1003, and so forth, for example. A handling processing unit 1015 performs processing regarding control of the transmission unit 1011 in response to the status confirmed by the status confirmation unit 1014. A status confirmation unit 1034 performs processing for confirmation of the status regarding communication of a reception device 1002, i.e., regarding confirmation of the communication environment, such as the relative position relation of the reception device 1002 and communication medium 1003, and so forth, for example. A handling processing unit 1035 performs processing regarding control of the reception unit 1031 in response to the status confirmed by the status confirmation unit 1034. The present invention can be applied to a communication system.
    • 本发明涉及通信系统,通信设备和方法以及程序,其中可以容易地进行根据通信环境的适当的通信设置。 状态确认单元1014执行用于确认关于发送设备1001的通信的状态的处理,即,关于通信环境的确认,诸如发送设备1001和通信介质1003的相对位置关系等,用于 例。 处理处理单元1015响应于由状态确认单元1014确认的状态来执行关于发送单元1011的控制的处理。 状态确认单元1034执行用于确认关于接收设备1002的通信的状态的处理,即关于通信环境的确认,诸如接收设备1002和通信介质1003的相对位置关系等等, 例。 处理处理单元1035响应于由状态确认单元1034确认的状态来执行关于接收单元1031的控制的处理。 本发明可以应用于通信系统。
    • 59. 发明授权
    • Contactless data processing apparatus
    • 非接触式数据处理装置
    • US5354975A
    • 1994-10-11
    • US70789
    • 1993-06-03
    • Yoshihito IshibashiMasakatsu MatsumotoShin-ichi Hayakawa
    • Yoshihito IshibashiMasakatsu MatsumotoShin-ichi Hayakawa
    • G06K7/00G07B15/02G06K5/00G06F11/00H04K1/00
    • G06K7/0008G06Q20/367G07B15/02
    • When a control section of a data carrier discriminates a command from a reader/writer, either one of two kinds of pseudo random signals is returned in accordance with a bit 0 or 1 of response data. When two autocorrelation values obtained by correlation arithmetic operations are simultaneously equal to or greater than a predetermined threshold value, the reader/writer determines that a communication has been executed with two or more data carriers, so that an error warning, an access stop, a retry, or the like is executed. The reader/writer compares the autocorrelation peak value obtained from the pseudo random signal from the data carrier with a threshold value. When it is equal to or greater than the threshold value, the reading operation is executed. In the reading operation of continuous data bits from the data carrier, the reader/writer selects the minimum value from among the autocorrelation peak values of the bits obtained by the correlation arithmetic operations and stores the selected minimum value. When the minimum memory value is smaller than a threshold value, it is determined that data could not correctly be read, so that an error is indicated.
    • 当数据载体的控制部分识别来自读/写器的命令时,根据响应数据的位0或1返回两种伪随机信号中的任一种。 当通过相关算术运算获得的两个自相关值同时等于或大于预定阈值时,读取器/写入器确定已经用两个或更多个数据载体执行通信,使得错误警告,访问停止, 重试等。 读取器/写入器将从数据载体的伪随机信号获得的自相关峰值与阈值进行比较。 当其等于或大于阈值时,执行读取操作。 在来自数据载体的连续数据位的读取操作中,读取器/写入器从通过相关算术运算获得的位的自相关峰值中选择最小值,并存储所选择的最小值。 当最小存储器值小于阈值时,确定数据无法正确读取,从而指示错误。