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    • 6. 发明授权
    • Data distribution server and terminal apparatus
    • 数据分发服务器和终端设备
    • US07508760B2
    • 2009-03-24
    • US10649702
    • 2003-08-28
    • Yasuhiro AkiyamaJunichi KimuraToru Yokoyama
    • Yasuhiro AkiyamaJunichi KimuraToru Yokoyama
    • G01R31/08
    • H04N21/234354H04N7/17318H04N21/41407H04N21/44209H04N21/4621H04N21/6131H04N21/6373H04N21/8126
    • A radio line is easily influenced in its nature by attenuation or reflection of an electromagnetic wave or the like and the surrounding environment. Due to this fact, a variation of the data transfer speed frequently occurs at the time of image streaming so as to become a hindrance to reproduction of an image at the receiving terminal. A distribution server is provided with a multiplexer for multiplexing information indicating the transmission start time for the image data and a switching unit for switching an image bit rate in response to a request from the receiving terminal. The receiving terminal uses information indicating a transmission start time for the image data, monitors the receiving bit rate and sends out a request for transmission of the most-suitable image bit rate in response to a comparison thereof.
    • 无线电线路通过电磁波等的衰减或反射以及周围的环境容易地影响其性质。 由于这个事实,数据传送速度的变化在图像传送时频繁地发生,从而成为在接收终端再现图像的障碍。 配送服务器设置有多路复用器,用于复用指示图像数据的传输开始时间的信息,以及响应于来自接收终端的请求切换图像比特率的切换单元。 接收终端使用指示图像数据的发送开始时间的信息,监视接收比特率,并响应于其比较发送出最合适的图像比特率的发送请求。
    • 9. 发明授权
    • Apparatus for system decoder and method for error correction of packet data
    • 用于系统解码器的装置和用于分组数据的纠错的方法
    • US07131048B2
    • 2006-10-31
    • US09940576
    • 2001-08-29
    • Yoshinori SuzukiToru YokoyamaJunichi Kimura
    • Yoshinori SuzukiToru YokoyamaJunichi Kimura
    • G08C25/02H04L1/18H03M13/00
    • H04L1/0082H04L1/0045H04L1/16H04L1/1838H04N19/61H04N19/70H04N19/89H04N21/41407H04N21/4382H04N21/6131H04N21/64322
    • When a non-error-resilient application decoder receives a data stream containing syntax error due to transmission errors, such as packet losses in wireless communication, an application decoder cannot usually continue decoding the stream data anymore. According to the present invention, the data stream containing syntax error along with error correction data generated by error-detectable transmission system is inputted into an error correction part before inputted into the application decoder. The error correction part detects the error position in the data stream using the error detection data, corrects the syntax error in the stream data, and generates a stream data which is possible to be decoded by the application decoder. As a result, the data stream containing syntax error can continue decoding or be decoded in better quality by a non-error-resilient application decoder, without adding any error correcting function in the existing application decoder.
    • 当无错误弹性的应用解码器接收到由于诸如无线通信中的分组丢失的传输错误而包含语法错误的数据流时,应用解码器通常不能再继续解码流数据。 根据本发明,在输入到应用解码器之前,将包含语法错误的数据流与由错误检测的传输系统生成的纠错数据一起输入到纠错部分。 纠错部分使用错误检测数据检测数据流中的错误位置,纠正流数据中的语法错误,并生成可由应用解码器解码的流数据。 结果,包含语法错误的数据流可以通过无错误弹性的应用解码器继续解码或以更好的质量解码,而不会在现有应用解码器中增加任何纠错功能。
    • 10. 发明授权
    • Medical drilling machine
    • 医用钻床
    • US07074225B2
    • 2006-07-11
    • US10637024
    • 2003-08-08
    • Junichi Kimura
    • Junichi Kimura
    • A61B17/16A61B17/17
    • A61B17/1725A61B17/1622A61B17/1703A61B17/1717
    • To facilitate positioning of a drill bit and alleviate burden to a user, a medical drill machine including a drive shaft gripping a drill bit, a casing constituted of X-ray transparent material and capable of housing the drive shaft, and a force transferring mechanism for transferring rotational force to the drive shaft is provided. In this medical drill machine, a first guide and a second guide constituted of X-ray opaque material are fixed at given positions along an axial direction of the drive shaft in the casing. Both guides are arranged coaxially with the axis of the drive shaft, and are formed in mutually different shapes. A slant direction of the drill bit can be recognized from any relative misalignment of the mutually different shapes of the guides included in an X-ray image along the ideal axial line.
    • 为了便于钻头的定位和减轻使用者的负担,包括夹持钻头的驱动轴的医疗钻机,由X射线透明材料构成并能够容纳驱动轴的壳体,以及力传递机构, 提供将旋转力传递到驱动轴。 在该医用钻机中,由X射线不透明材料构成的第一引导件和第二引导件沿着壳体中的驱动轴的轴向固定在给定位置。 两个引导件与驱动轴的轴线同轴地布置,并且形成为彼此不同的形状。 可以从沿着理想轴线的X射线图像中包括的导轨的相互不同形状的任何相对的未对准来识别钻头的倾斜方向。