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10 条记录 (耗时 0.033 秒)

    LSF quantizer for wideband speech coder
    8.
    发明授权
    LSF quantizer for wideband speech coder 有权

    公开(公告)号：US06988067B2

    公开(公告)日：2006-01-17

    申请号：US10033649

    申请日：2001-12-27

    申请人： Dae-Sik Kim ,  Song-In Choi ,  Byung-Sik Yoon ,  Hyung-Jung Kim ,  Sang-Won Kang ,  Sang-Hyun Chi

    发明人： Dae-Sik Kim ,  Song-In Choi ,  Byung-Sik Yoon ,  Hyung-Jung Kim ,  Sang-Won Kang ,  Sang-Hyun Chi

    IPC分类号： G10L19/04 ,  G10L19/14

    CPC分类号： G10L19/07

    摘要： The LSF quantizer for a wideband speech coder comprises a subtracter for receiving an input LSF coefficient vector and removing a DC component from it; a memory-based vector quantizer and a memoryless vector quantizer for respectively receiving the DC-component-removed LSF coefficient vector and independently quantizing the same; a switch for receiving quantized vectors respectively quantized by the memory-based vector quantizer and the memoryless vector quantizer, selecting a quantized vector that has less quantized error that is a difference between the received quantized vector and the input LSF coefficent vector from among the received quantized vectors, and outputting the same; and an adder for adding the quantized vector selected by the switch to the DC component of the LSF coefficient vector.

    Apparatus and method for transmitting/receiving signal
    9.
    发明授权
    Apparatus and method for transmitting/receiving signal 有权
    发送/接收信号的装置和方法

    公开(公告)号：US08868013B2

    公开(公告)日：2014-10-21

    申请号：US12888216

    申请日：2010-09-22

    申请人： Jinkyu Choi ,  Hyung-Jung Kim ,  Seok Seo ,  Jin-Up Kim

    发明人： Jinkyu Choi ,  Hyung-Jung Kim ,  Seok Seo ,  Jin-Up Kim

    IPC分类号： H01Q11/12 ,  H01Q1/24

    CPC分类号： H01Q1/24

    摘要： A signal transmitting apparatus includes a signal distributor, a frequency converter, and a frequency synthesizer. The signal distributor is configured to baseband signals corresponding respectively to a plurality of frequency band. The frequency converter is configured to convert each of the distributed baseband signals into one of a positive frequency signal and a negative frequency signal according to the frequency band. The frequency synthesizer is configured to synthesize the positive frequency signal and the negative frequency signal to generate a transmission signal. Herein, the positive frequency signal and the negative frequency signal are signals included in one predetermined intermediate frequency band.

    摘要翻译： 信号发送装置包括信号分配器，频率转换器和频率合成器。 信号分配器被配置为分别对应于多个频带的基带信号。 变频器被配置为根据频带将分布式基带信号中的每一个转换成正频率信号和负频率信号之一。 频率合成器被配置为合成正频率信号和负频率信号以产生发送信号。 这里，正频率信号和负频率信号是包括在一个预定中频带中的信号。

    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNAL
    10.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING SIGNAL 有权
    发送/接收信号的装置和方法

    公开(公告)号：US20110092174A1

    公开(公告)日：2011-04-21

    申请号：US12888216

    申请日：2010-09-22

    申请人： Jinkyu CHOI ,  Hyung-Jung Kim ,  Seok Seo ,  Jin-Up Kim

    发明人： Jinkyu CHOI ,  Hyung-Jung Kim ,  Seok Seo ,  Jin-Up Kim

    IPC分类号： H01Q11/12

    CPC分类号： H01Q1/24

    摘要： A signal transmitting apparatus includes a signal distributor, a frequency converter, and a frequency synthesizer. The signal distributor is configured to baseband signals corresponding respectively to a plurality of frequency band. The frequency converter is configured to convert each of the distributed baseband signals into one of a positive frequency signal and a negative frequency signal according to the frequency band. The frequency synthesizer is configured to synthesize the positive frequency signal and the negative frequency signal to generate a transmission signal. Herein, the positive frequency signal and the negative frequency signal are signals included in one predetermined intermediate frequency band.

    摘要翻译： 信号发送装置包括信号分配器，频率转换器和频率合成器。 信号分配器被配置为分别对应于多个频带的基带信号。 变频器被配置为根据频带将分布式基带信号中的每一个转换成正频率信号和负频率信号之一。 频率合成器被配置为合成正频率信号和负频率信号以产生发送信号。 这里，正频率信号和负频率信号是包括在一个预定中频带中的信号。