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    • 67. 发明授权
    • Variable impedance circuits
    • 可变阻抗电路
    • US4179650A
    • 1979-12-18
    • US864266
    • 1977-12-27
    • Isao FukushimaAkihiro AsadaKazuya Takahashi
    • Isao FukushimaAkihiro AsadaKazuya Takahashi
    • H01L29/66H03G1/00H03H11/24H03H11/46G05F1/48
    • H03H11/46H03G1/0035H03G1/0082H03H11/24
    • A variable impedance circuit comprises a differential current circuit having a diode and a first transistor connected so as to operate differentially with respect to each other, and a current control circuit for controlling current flowing through the differential current circuit, whereby variation of the operative resistance of the differential current circuit causes variation of impedance thereof. The current control circuit comprises a second transistor having a collector connected with the differential connection of the differential current circuit, and an emitter grounded via a resistor, and a third transistor having a base applied with a control voltage and an emitter connected with the emitter of the second transistor. A fourth transistor is also provided having a collector connected to the base of the second transistor, a base connected to the collector of the third transistor and an emitter applied with source voltage independently from the current flowing through the differential current circuit. The current control circuit is connected with the differential current circuit through only the collector of the second transistor to establish a high impedance of the current control circuit as seen by the differential current circuit.
    • 可变阻抗电路包括具有二极管和第一晶体管的差分电流电路,所述第二晶体管被连接成相对于彼此差分地工作;以及电流控制电路,用于控制流过差分电流电路的电流,由此, 差分电流电路导致其阻抗的变化。 电流控制电路包括第二晶体管,其具有与差分电流电路的差分连接的集电极,以及通过电阻器接地的发射极,以及具有施加有控制电压的基极和与发射极连接的发射极的第三晶体管 第二晶体管。 还提供第四晶体管,其具有连接到第二晶体管的基极的集电极,连接到第三晶体管的集电极的基极和独立于流过差分电流电路的电流施加源电压的发射极。 电流控制电路仅通过第二晶体管的集电极与差分电流电路连接,以建立电流控制电路的高阻抗,如差分电流电路所示。
    • 69. 发明授权
    • Content distribution system and content distribution method
    • 内容分发系统和内容分发方式
    • US08401909B2
    • 2013-03-19
    • US12673657
    • 2008-12-16
    • Kazuya TakahashiMasaya AiharaAkira YamashitaOsamu IkedaJun Iwasaki
    • Kazuya TakahashiMasaya AiharaAkira YamashitaOsamu IkedaJun Iwasaki
    • G06Q30/00
    • G06F21/10G06Q30/06G06Q30/0607
    • A content distribution system which assures reliability of content is provided. Permitted-user information corresponding to a user who is permitted to use content to be distributed is associated with the content. In the case where user specific information which specifies a user and the permitted-user information do not have a predetermined relation, a user terminal transmits the user specific information and the permitted-user information to a server. The server generates user-related information in which the received user specific information is set as a distribution destination and the permitted-user information is set as a distributor, generates new permitted-user information so as to have the predetermined relation with the user specific information, and provides the new permitted-user information to the user terminal. The user terminal which obtains the new permitted-user information changes the permitted-user information to the new permitted-user information.
    • 提供确保内容可靠性的内容分发系统。 与允许使用内容分发的用户对应的允许用户信息与内容相关联。 在指定用户的用户特定信息和允许用户信息不具有预定关系的情况下,用户终端向服务器发送用户特定信息和允许用户信息。 服务器产生用户相关信息,其中接收的用户特定信息被设置为分发目的地,并且允许用户信息被设置为分发者,生成新的允许用户信息,以便与用户特定信息具有预定关系 并向用户终端提供新的允许用户信息。 获取新的许可用户信息的用户终端将允许用户信息改变为新的允许用户信息。
    • 70. 发明授权
    • Human pursuit system, human pursuit apparatus and human pursuit program
    • 人的追求体系,追求人的追求和追求的方案
    • US08144929B2
    • 2012-03-27
    • US12193150
    • 2008-08-18
    • Kazuya TakahashiWataru ItoMitsue Ito
    • Kazuya TakahashiWataru ItoMitsue Ito
    • G06K9/00
    • G06K9/00771G06K9/00369
    • A human pursuit system includes a plurality of cameras, shooting directions of which are directed toward a floor, are installed on a ceiling, a parallax of an object reflected in an overlapping image domain is calculated on the basis of at least a portion of the overlapping image domain where images are overlapped among shot images shot by the plurality of cameras, the object equal to or greater than a threshold value predetermined by the calculated parallax is detected as a human, a pattern image including the detected human object is extracted, and a pattern matching is applied to the extracted pattern image and the image shot by the camera to thereby pursue a human movement trajectory.
    • 人的追求系统包括多个摄像机,其拍摄方向指向地板,安装在天花板上,基于重叠图像的至少一部分来计算在重叠图像域中反射的物体的视差 检测由多个照相机拍摄的拍摄图像之间的图像重叠的图像域,被检测为等于或大于由计算出的视差预定的阈值的对象作为人,提取包括检测到的人物的图案图像, 图案匹配被应用于提取的图案图像和由相机拍摄的图像,从而追求人的移动轨迹。