公开(公告)号：US07127012B2

公开(公告)日：2006-10-24

申请号：US09963297

申请日：2001-09-25

申请人： Kyungtae Han ,  In-Gi Lim ,  Ik-Soo Eo ,  Hye-Ju Seo ,  Kyung-Soo Kim ,  Hee-Bum Jung ,  Han-Jin Cho

发明人： Kyungtae Han ,  In-Gi Lim ,  Ik-Soo Eo ,  Hye-Ju Seo ,  Kyung-Soo Kim ,  Hee-Bum Jung ,  Han-Jin Cho

IPC分类号： H04B7/10 ,  H04B1/707

CPC分类号： H04L5/06 ,  H04B1/7115

摘要： In the apparatus and method for separating carrier of multicarrier wireless communication receiver system, each carrier separation is performed after a quantization in a wireless communication receiver system such as a received multicarrier CDMA (Code Division Multiple Access) etc., to thereby reduce the whole number of quantizers and separate multicarrier from a received signal. For that, the apparatus for separating the carrier of the multicarrier wireless communication receiver system includes an internal oscillating unit for generating internal multicarrier; a plurality of frequency transition units for respectively down-converting the multicarrier generated by the internal oscillating unit and moving it to frequency of “0” as a frequency center; and a plurality of filtering units for individually filtering the respective carrier moved by the plurality of frequency transition units to the frequency center as the frequency of “0”, through a low frequency pass band and for providing it as an input of a rake receiver.

公开(公告)号：US06850579B2

公开(公告)日：2005-02-01

申请号：US09753258

申请日：2000-12-29

申请人： In-Gi Lim ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Han-Jin Cho

发明人： In-Gi Lim ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Han-Jin Cho

IPC分类号： H03H17/02 ,  H03H17/06 ,  H03K5/159

CPC分类号： H03H17/0607 ,  H03H17/0226 ,  H03H17/0621 ,  H03H17/0657

摘要： A finite impulse response filter of 1:4 interpolation with 108 taps for outputting filter output data of 8 bits with respect to filter input data of 4 bits includes four shifting and storing unit of 27 bits for unifying bits of filter input data of 4 bits, which is 2's complement to shift and store the bi-unified input data, first selection unit for selecting any one of the input data stored in the four shifting and storing unit of 27 bits, address generating unit for generating addresses of lookup tables corresponding to each of a plurality of filter coefficients groups, first to fourth lookup table groups for generating filter outputs of each filter coefficients group, four accumulating unit for shifting the filter outputs of the filter coefficients groups respectively outputted in parallel from the first to the fourth lookup table groups, and second selection unit for serially converting the outputs from each of the four accumulators in accordance with filter coefficients groups.

摘要翻译： 对于4位的滤波器输入数据，输出8位的8位滤波器输出数据，具有108抽头的1：4内插有限脉冲响应滤波器包括4位的4位移位和存储单元，用于4位滤波器输入数据的位的统一， 其是用于移位和存储双统一输入数据的补码，用于选择存储在27位的四个移位和存储单元中的任何一个输入数据的第一选择单元，用于生成与每个对应的查找表的地址的地址生成单元 多个滤波器系数组的第一至第四查找表组，用于产生每个滤波器系数组的滤波器输出;四个累加单元，用于将由第一至第四查找表组并行输出的滤波器系数组的滤波器输出移位; 以及第二选择单元，用于根据滤波器系数组串行转换四个累加器中的每一个的输出。

公开(公告)号：US07529663B2

公开(公告)日：2009-05-05

申请号：US11216430

申请日：2005-08-30

申请人： Kyung-Jin Byun ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

发明人： Kyung-Jin Byun ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

IPC分类号： G10L19/12 ,  G10L19/10

CPC分类号： G10L19/107 ,  G10L19/24

摘要： Provided are a flexible bit rate code vector generation method and a wideband vocoder employing the same. This invention implements a flexible bit rate by getting three code vectors which are composed of 24, 16, and 8 pulses, at a time in a search process, through improvement of an algebraic codebook search process in a wideband AMR-WB vocoder. The method includes the steps of: performing a preprocess, wherein the preprocess divides a sub-frame by tracks and decides a pulse position having a maximum value in each track; among a plurality of pulses to be searched, fixing a same number of pulses as the tracks to the position with the maximum value of each track sequentially, and searching optimal positions having a minimum error with a target signal by combining two pulses in two consecutive tracks for the remaining pulses; and creating a code vector with flexible bit rate.

摘要翻译： 提供了一种灵活的比特率码矢量生成方法和采用该方法的宽带声码器。 本发明通过在宽带AMR-WB声码器中改进代数码本搜索处理，通过在搜索过程中一次获得由24,16和8脉冲组成的三个码向量来实现灵活的比特率。 该方法包括以下步骤：执行预处理，其中预处理通过磁道划分子帧，并确定每个磁道中具有最大值的脉冲位置; 在要搜索的多个脉冲之间，将相同数量的脉冲固定到具有每个磁道的最大值的位置，并且通过在两个连续的轨道中组合两个脉冲来搜索具有目标信号的最小误差的最佳位置 剩下的脉冲; 并创建一个具有灵活位速率的码矢量。

公开(公告)号：US20060136802A1

公开(公告)日：2006-06-22

申请号：US11263443

申请日：2005-10-31

申请人： In-San Jeon ,  Hyuk Kim ,  Kyung-Soo Kim ,  Ik-Soo Eo ,  Hee-Bum Jung

发明人： In-San Jeon ,  Hyuk Kim ,  Kyung-Soo Kim ,  Ik-Soo Eo ,  Hee-Bum Jung

IPC分类号： H03M13/03

CPC分类号： H03M13/395 ,  H03M13/4107 ,  H03M13/4192

摘要： A hybrid trace back apparatus and a high-speed Viterbi decoding system having the same are disclosed. The hybrid trace back apparatus includes: a register exchanging unit for receiving survivor values of each states from a path metric calculator, and obtaining a block survival value through a register exchange operation as much as a bit length for a block trace back operation; a first storing unit for the register exchange operation; a second storing unit for storing the block survival value obtained through the register exchange operation until the block survival value is written in a block trace back memory; and a block trace back unit for outputting decoded data by performing a block trace back operation while writing a value of the second storing unit.

公开(公告)号：US20060116872A1

公开(公告)日：2006-06-01

申请号：US11216430

申请日：2005-08-30

申请人： Kyung-Jin Byun ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

发明人： Kyung-Jin Byun ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

IPC分类号： G10L19/12

CPC分类号： G10L19/107 ,  G10L19/24

摘要： Provided are a flexible bit rate code vector generation method and a wideband vocoder employing the same. This invention implements a flexible bit rate by getting three code vectors which are composed of 24, 16, and 8 pulses, at a time in a search process, through improvement of an algebraic codebook search process in a wideband AMR-WB vocoder. The method includes the steps of: performing a preprocess, wherein the preprocess divides a sub-frame by tracks and decides a pulse position having a maximum value in each track; among a plurality of pulses to be searched, fixing a same number of pulses as the tracks to the position with the maximum value of each track sequentially, and searching optimal positions having a minimum error with a target signal by combining two pulses in two consecutive tracks for the remaining pulses; and creating a code vector with flexible bit rate.

公开(公告)号：US07530010B2

公开(公告)日：2009-05-05

申请号：US11263443

申请日：2005-10-31

申请人： In-San Jeon ,  Hyuk Kim ,  Kyung-Soo Kim ,  Ik-Soo Eo ,  Hee-Bum Jung

发明人： In-San Jeon ,  Hyuk Kim ,  Kyung-Soo Kim ,  Ik-Soo Eo ,  Hee-Bum Jung

IPC分类号： H03M13/03

CPC分类号： H03M13/395 ,  H03M13/4107 ,  H03M13/4192

摘要： A hybrid trace back apparatus and a high-speed Viterbi decoding system having the same are disclosed. The hybrid trace back apparatus includes: a register exchanging unit for receiving survivor values of each states from a path metric calculator, and obtaining a block survival value through a register exchange operation as much as a bit length for a block trace back operation; a first storing unit for the register exchange operation; a second storing unit for storing the block survival value obtained through the register exchange operation until the block survival value is written in a block trace back memory; and a block trace back unit for outputting decoded data by performing a block trace back operation while writing a value of the second storing unit.

摘要翻译： 公开了具有该混合追溯装置和高速维特比解码系统。 混合追溯装置包括：寄存器交换单元，用于从路径度量计算器接收每个状态的幸存值，并通过寄存器交换操作获得块存活值，作为块追溯操作的位长; 用于寄存器交换操作的第一存储单元; 第二存储单元，用于存储通过寄存器交换操作获得的块存活值，直到块存储值被写入块追溯存储器; 以及块追溯单元，用于通过在写入第二存储单元的值的同时执行块追溯操作来输出解码数据。

公开(公告)号：US07428563B2

公开(公告)日：2008-09-23

申请号：US10969504

申请日：2004-10-19

申请人： Ik-Soo Eo ,  Young-Seok Baek ,  Jung-Bum Kim ,  Hee-Bum Jung ,  Kyung-Soo Kim

发明人： Ik-Soo Eo ,  Young-Seok Baek ,  Jung-Bum Kim ,  Hee-Bum Jung ,  Kyung-Soo Kim

IPC分类号： G06F17/14

CPC分类号： G06F17/142 ,  G06F17/145

摘要： Disclosed is an apparatus for performing both FHT (Fast Hadamard Transform) and FFT (Fast Fourier Transform). This apparatus determines the phase coefficients as constantly “1” when performing the FHT, and changes the input order of input data to a reverse order of bits when performing the FFT. In addition, the apparatus, which can process a plurality of input data sets simultaneously, classifies the received signals into multi-path signals and multi-antenna signals, thus processing the multi-path signals separately from the multi-antenna signals, or directly processes multi-antenna signals.

摘要翻译： 公开了一种用于执行FHT（Fast Hadamard Transform）和FFT（快速傅立叶变换）的装置。 该装置在执行FHT时确定相位系数恒定为“1”，并且在执行FFT时将输入数据的输入顺序改变为相反的位数。 另外，可以同时处理多个输入数据集的装置将接收到的信号分类成多径信号和多天线信号，从而与多天线信号分开处理多路信号，或直接处理 多天线信号。

公开(公告)号：US20060129621A1

公开(公告)日：2006-06-15

申请号：US11273727

申请日：2005-11-14

申请人： Tae-Joon Kim ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

发明人： Tae-Joon Kim ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

IPC分类号： G06F17/14

CPC分类号： G06F17/142 ,  G06F17/145

摘要： A Fast Fourier Transform (FFT) apparatus for selectively performing Fast Hadamard transform (FHT), and a complementary code keying (CCK) modulation/demodulation apparatus using the same are disclosed. In the present invention, OFDM module and CCK module are integrated as one module having lower complexity compared to conventional scheme by embodying the CCK modulation using FFT structure in the OFDM module, and embodying the suboptimal and the optimized CCK modulations using FFT structure in OFDM module. Furthermore, according to the present invention, CDMA, OFDM, CCK modules may be integrated as single module.

摘要翻译： 公开了一种用于选择性地执行快速Hadamard变换（FHT）的快速傅里叶变换（FFT）装置，以及使用该快速傅立叶变换的补码编码密钥（CCK）调制/解调装置。 在本发明中，通过在OFDM模块中实现使用FFT结构的CCK调制，将OFDM模块和CCK模块集成为具有比常规方案更低复杂度的一个模块，并且在OFDM模块中体现了使用FFT结构的次优和优化的CCK调制 。 此外，根据本发明，可以将CDMA，OFDM，CCK模块集成为单个模块。

公开(公告)号：US07391632B2

公开(公告)日：2008-06-24

申请号：US11273727

申请日：2005-11-14

申请人： Tae-Joon Kim ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

发明人： Tae-Joon Kim ,  Ik-Soo Eo ,  Kyung-Soo Kim ,  Hee-Bum Jung

IPC分类号： G11C19/08

CPC分类号： G06F17/142 ,  G06F17/145

摘要： A Fast Fourier Transform (FFT) apparatus for selectively performing Fast Hadamard transform (FHT), and a complementary code keying (CCK) modulation/demodulation apparatus using the same. An OFDM module and CCK module are integrated as one module having lower complexity compared to conventional scheme by embodying the CCK modulation using FFT structure in the OFDM module, and embodying the suboptimal and the optimized CCK modulations using FFT structure in OFDM module. CDMA, OFDM, CCK modules may be integrated as single module.

摘要翻译： 用于选择性地执行快速Hadamard变换（FHT）的快速傅里叶变换（FFT）装置和使用该快速傅立叶变换的补码代码键控（CCK）调制/解调装置。 通过在OFDM模块中实现使用FFT结构的CCK调制，将OFDM模块和CCK模块集成为具有比传统方案更低复杂度的模块，并且在OFDM模块中体现了使用FFT结构的次优和优化的CCK调制。 CDMA，OFDM，CCK模块可以集成为单个模块。

公开(公告)号：US20050144209A1

公开(公告)日：2005-06-30

申请号：US10969504

申请日：2004-10-19

申请人： Ik-Soo Eo ,  Young-Seok Baek ,  Jung-Bum Kim ,  Hee-Bum Jung ,  Kyung-Soo Kim

发明人： Ik-Soo Eo ,  Young-Seok Baek ,  Jung-Bum Kim ,  Hee-Bum Jung ,  Kyung-Soo Kim

IPC分类号： H04L27/38 ,  G06F15/00 ,  G06F17/14

CPC分类号： G06F17/142 ,  G06F17/145

摘要： Disclosed is an apparatus for performing both FHT (Fast Hadamard Transform) and FFT (Fast Fourier Transform). This apparatus determines the phase coefficients as constantly “1” when performing the FHT, and changes the input order of input data to a reverse order of bits when performing the FFT. In addition, the apparatus, which can process a plurality of input data sets simultaneously, classifies the received signals into multi-path signals and multi-antenna signals, thus processing the multi-path signals separately from the multi-antenna signals, or directly processes multi-antenna signals.

摘要翻译： 公开了一种用于执行FHT（Fast Hadamard Transform）和FFT（快速傅立叶变换）的装置。 该装置在执行FHT时确定相位系数恒定为“1”，并且在执行FFT时将输入数据的输入顺序改变为相反的位数。 另外，可以同时处理多个输入数据集的装置将接收到的信号分类成多径信号和多天线信号，从而与多天线信号分开处理多路信号，或直接处理 多天线信号。