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    • 71. 发明申请
    • Method, apparatus and program for protecting content
    • 用于保护内容的方法,装置和程序
    • US20060206945A1
    • 2006-09-14
    • US11154716
    • 2005-06-17
    • Taku KatoAtsushi Ishihara
    • Taku KatoAtsushi Ishihara
    • H04L9/32
    • H04L63/06H04L9/083H04L9/3247H04L2209/603H04L2463/101
    • According to a first aspect of the present invention, a recording medium manufactured without using the latest key management information can be detected and accuracy of content protection can be improved. A license association apparatus generates a digital signature uniquely corresponding to the latest key management information and content data. A disc manufacturer apparatus writes this digital signature together with the key management information, encrypted content, content feature information onto a DVD. Accordingly, the recording media manufactured without using the latest key management information can be detected by confirming unique correspondence among the key management information, the content feature information and the digital signature and unique correspondence between the encrypted content and the content feature information, in advance of playback.
    • 根据本发明的第一方面,可以检测不使用最新密钥管理信息而制造的记录介质,并且可以提高内容保护的精度。 许可关联装置生成与最新密钥管理信息和内容数据唯一对应的数字签名。 盘制造商将该数字签名与密钥管理信息,加密内容,内容特征信息一起写入DVD。 因此,可以通过在密钥管理信息,内容特征信息和数字签名之间的唯一对应关系和加密内容与内容特征信息之间的唯一对应关系来检测在不使用最新密钥管理信息的情况下制造的记录介质 回放。
    • 74. 发明授权
    • Circuit network measurement device and calibration method
    • 电路网络测量装置及校准方法
    • US5661404A
    • 1997-08-26
    • US503092
    • 1995-07-17
    • Koichi YanagawaAtsushi IshiharaHiroyuki IwaiTatsuo Furukawa
    • Koichi YanagawaAtsushi IshiharaHiroyuki IwaiTatsuo Furukawa
    • G01R27/28G01R27/30G01R35/00
    • G01R35/005G01R27/30
    • A system and a method are presented which reduce the number of times of connection and disconnection of calibration standards in a circuit network measurement device provided with many measurement ports. The circuit network measurement device generally includes a network analyzer and a test set. A calibration port is provided and typically placed in the test set. The calibration port consists of a connector and three standards (open, short, and load impedances) connected to the connector internally by means of a selection switch. The measurement port of the circuit network measurement device is calibrated by using the three external impedance standards. The calibrator is calibrated by connecting the measurement port calibrated at the former step. Other measurement ports are then connected to the calibrator to be calibrated. Because the three impedances of the internal calibrator are automatically selected by a switch of the calibrator, by means of logical control, the number of times the standards are connected and disconnected is reduced.
    • 本发明提供一种系统和方法,其减少了具有许多测量端口的电路网络测量装置中校准标准的连接和断开次数。 电路网络测量装置通常包括网络分析器和测试装置。 提供校准端口,通常放置在测试仪中。 校准端口由连接器和通过选择开关内部连接到连接器的三个标准(开路,短路和负载阻抗)组成。 电路网络测量设备的测量端口使用三个外部阻抗标准进行校准。 校准器通过连接在前一步骤校准的测量端口进行校准。 然后将其他测量端口连接到校准器进行校准。 由于内部校准器的三个阻抗由校准器的开关自动选择,通过逻辑控制,标准品的连接和断开次数减少了。
    • 78. 发明授权
    • Rotating machinery
    • 旋转机械
    • US07786642B2
    • 2010-08-31
    • US11619777
    • 2007-01-04
    • Kazuhiko TakahashiKenichi HattoriMasami SukedaAtsushi IshiharaTakahiko Sano
    • Kazuhiko TakahashiKenichi HattoriMasami SukedaAtsushi IshiharaTakahiko Sano
    • H02K1/00
    • H02K3/12H02K3/14H02K15/0081
    • In a rotating machinery having armature windings constituted by a lot of strands, when the armature winding is constituted by four layers, a step number of the strands becomes half with respect to two layers of armature windings so as to facilitate manufacturing an armature winding of 540 degree transposition in which a transposition pitch is elongated and a circulating current loss is reduced, but since an output voltage becomes twice, for securing a voltage limit value caused by an isolation resisting force, one layer of armature windings are constituted by sub windings separated into at least two layers in a vertical direction, a transposition is independently applied to each of the sub windings, the sub windings are connected to the armature windings of the other slot while keeping an isolation of the sub winding at an armature winding end region by at least two connecting methods, and the sub winding constructs a parallel circuit by the armature windings of a plurality of slots.
    • 在具有由大量绞线构成的电枢绕组的旋转机械中,当电枢绕组由四层构成时,相对于两层电枢绕组,绞合线的数量变为一半,以便于制造540的电枢绕组 转位间距变长并且循环电流损失减小,但由于输出电压变为两倍,为了确保由隔离阻力引起的电压限制值,一层电枢绕组由分为 在垂直方向上至少两层,转置被独立地施加到每个子绕组,子绕组连接到另一槽的电枢绕组,同时保持子绕组在电枢绕组端区域处的隔离 至少两个连接方法,并且子绕组由多个槽的电枢绕组构成并联电路。