Peak cancellation apparatus of base station transmission unit
    1.
    发明申请
    Peak cancellation apparatus of base station transmission unit 有权
    基站传输单元的峰值消除装置

    公开(公告)号:US20030086480A1

    公开(公告)日:2003-05-08

    申请号:US10284258

    申请日:2002-10-31

    CPC classification number: H04B1/707 H04B2201/70706

    Abstract: A peak cancellation apparatus is included in a base station transmission unit to cancel the peak component of the peak signal. Thus, the base station transmission unit can be implemented with a lower capacity power amplifier. In addition, an existing power amplifier can be replaced with a low-priced power amplifier, so that an expense can be reduced. Moreover, since only the digital signal having the limited PAR is used, the degradation of the signal quality caused in conversion of the digital signal to the analog signal can be prevented. The peak cancellation apparatus includes a peak cancellation unit positioned between a multiplier and a pulse shaping filter or between the pulse shaping filter and a D/A converter and removing a peak component of the peak signal.

    Abstract translation: 峰值消除装置包括在基站传输单元中以消除峰值信号的峰值分量。 因此,基站传输单元可以用较低容量的功率放大器来实现。 此外,现有的功率放大器可以用低价功率放大器代替,从而可以降低费用。 此外,由于仅使用具有有限PAR的数字信号,可以防止在将数字信号转换为模拟信号时引起的信号质量的劣化。 峰值消除装置包括位于乘法器和脉冲整形滤波器之间或在脉冲整形滤波器和D / A转换器之间并去除峰值信号的峰值分量的峰值消除单元。

    Multimedia reproducing apparatus and method
    2.
    发明申请
    Multimedia reproducing apparatus and method 有权
    多媒体再现装置及方法

    公开(公告)号:US20030229847A1

    公开(公告)日:2003-12-11

    申请号:US10457444

    申请日:2003-06-10

    Inventor: Tae-Hyun Kim

    Abstract: An apparatus for controlling the reproduction of multimedia includes an input unit for receiving a SMIL document, a SMIL analyzer for analyzing the SMIL document and generating a DOM tree based thereon, a control table generator for generating a predetermined control table with reference to the DOM tree and a media reproducing unit for reproducing a media data of the SMIL document. The apparatus also includes a controller for controlling the media reproducing unit with reference to the control table. A method for controlling reproduction of multimedia also analyzes a SMIL document. Through the apparatus and method, the multimedia data is effectively controlled in a limited resource system in which a multi-processing is not supported.

    Abstract translation: 用于控制多媒体再现的装置包括用于接收SMIL文档的输入单元,用于分析SMIL文档并根据其生成DOM树的SMIL分析器,用于参照DOM树生成预定控制表的控制表生成器 以及用于再现SMIL文档的媒体数据的媒体再现单元。 该装置还包括参照控制表控制媒体重放单元的控制器。 用于控制多媒体再现的方法还分析了SMIL文档。 通过该装置和方法,在不支持多处理的有限资源系统中有效地控制多媒体数据。

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