专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060129621A1 Apparatus of selectively performing fast hadamard transform and fast fourier transform, and CCK modulation and demodulation apparatus using the same 失效
标题翻译：选择性地执行快速hasamard变换和快速傅里叶变换的装置，以及使用其的CCK调制和解调装置
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。

2. 发明授权

US07391632B2 Apparatus of selectively performing fast hadamard transform and fast fourier transform, and CCK modulation and demodulation apparatus using the same 失效
标题翻译：选择性地执行快速hasamard变换和快速傅里叶变换的装置，以及使用其的CCK调制和解调装置
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。

3. 发明授权

US07529663B2 Method for flexible bit rate code vector generation and wideband vocoder employing the same 失效
标题翻译：用于灵活比特率码矢量生成的方法和采用该方法的宽带声码器
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。

4. 发明申请

US20060136802A1 Hybrid trace back apparatus and high-speed viterbi decoding system using the same 有权
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.

5. 发明申请

US20060116872A1 Method for flexible bit rate code vector generation and wideband vocoder employing the same 失效
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.

6. 发明授权

US07530010B2 Hybrid trace back apparatus and high-speed viterbi decoding system using the same 有权
标题翻译：混合追溯装置和使用相同的高速维特比解码系统
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。

7. 发明授权

US07428563B2 Apparatus and method for selectively performing Fast Hadamard Transform or Fast Fourier Transform 失效
标题翻译：用于选择性地执行快速Hadamard变换或快速傅立叶变换的装置和方法
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。

8. 发明授权

US07127012B2 Apparatus and method for separating carrier of multicarrier wireless communication receiver system 有权
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.

9. 发明申请

US20050144209A1 Apparatus and method for selectively performing Fast Hadamard Transform or fast fourier transform 失效
标题翻译：用于选择性地执行快速Hadamard变换或快速傅立叶变换的装置和方法
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。

10. 发明授权

US07012951B2 Symbol combining method for reducing the number of FIFO registers of finger, rake receiver and method for driving the rake receiver 有权
公开(公告)号：US07012951B2
公开(公告)日：2006-03-14
申请号：US09871995
申请日：2001-05-31
申请人： Ik-Soo Eo , Kyung-Soo Kim , Seong-Joo Lee , Jae-Seok Kim
发明人： Ik-Soo Eo , Kyung-Soo Kim , Seong-Joo Lee , Jae-Seok Kim
IPC分类号： H04K1/00
CPC分类号： H04B1/7115 , H04B1/7117 , H04B2201/70707
摘要： A symbol combining method in a Rake receiver, which relates to a method for combining the demodulated multi-path signals in a demodulation process of a code division multiple access communication system. The symbol combining method, a Rake receiver using the symbol combining method and a method for driving the Rake receiver, remarkably reduce a hardware complexity of a FIFO register used to regulate a timing synchronization of each finger in Rake receiver by using a new algorithm in a combining process when a CDMA communication system combines a plurality of multi-path signals therebetween. Whereas a conventional combining algorithm uses an individual FIFO register every finger so as to adjust a timing synchronization of each symbol before combining a demodulated symbol, the inventive combining algorithm performs a symbol combining operation as well as a timing synchronization of a symbol at the same time, and performs a combining action by using only one FIFO register irrespective of the number of fingers.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式