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1. 发明授权

US5712880A Traceback-performing apparatus in viterbi decoder 失效
标题翻译：维特比解码器中的追溯执行装置
公开(公告)号：US5712880A
公开(公告)日：1998-01-27
申请号：US557539
申请日：1995-11-14
申请人： Min-joong Rim , Young-uk Oh
发明人： Min-joong Rim , Young-uk Oh
IPC分类号： H04N19/00 , G11B20/18 , H03M13/23 , H03M13/41 , H04N19/42 , H04N19/423 , H04N19/65 , H04N21/438 , H03D1/00
CPC分类号： H03M13/6502 , H03M13/3961 , H03M13/41 , H03M13/4169 , H03M13/6505
摘要： A traceback-performing apparatus includes a first storing portion which receives and stores new path metric values and minimum path metric value so that the first input value is output later and the later input value is output first. A first trace logic portion which receives outputs of the first storing portion and the minimum path metric value and generates a first state which is the next state to be traced. A second storing portion which receives and stores the output of the first storing portion so that the first input value is output first and the later input value is output later. A second trace logic portion which receives the output of the second storing portion and the first state and generates a second state which is the next state to be traced. And, a third storing portion which receives and stores the second state so that the first input value is output later and the later input value is output first so as to find the decoded bits. Therefore, cost is saved in embodying the Viterbi decoder in a VLSI by reducing the required chip area, simplifying address-generation and eliminating the need for global interconnection.
摘要翻译：回溯执行装置包括第一存储部分，其接收并存储新的路径量度值和最小路径度量值，使得第一输入值稍后输出，并且稍后输入的值被首先输出。第一跟踪逻辑部分，其接收第一存储部分的输出和最小路径量度值，并产生作为要跟踪的下一状态的第一状态。第二存储部分，其接收并存储第一存储部分的输出，使得第一输入值首先被输出，后来的输入值稍后输出。第二跟踪逻辑部分，其接收第二存储部分的输出和第一状态，并产生作为要跟踪的下一个状态的第二状态。以及第三存储部分，其接收并存储第二状态，使得第一输入值稍后输出，并且先输出稍后的输入值以便找到解码的位。因此，通过减少所需的芯片面积，简化地址生成并消除对全局互连的需要，可以节省在VLSI中体现维特比解码器的成本。

2. 发明申请

US20050271154A1 System for allocating radio resources in multiband OFDM system 审中-公开
标题翻译：用于在多频带OFDM系统中分配无线电资源的系统
公开(公告)号：US20050271154A1
公开(公告)日：2005-12-08
申请号：US11147162
申请日：2005-06-08
申请人： Jae-ho Roh , Jae-hyun Koo , Jae-Min Ahn , Min-joong Rim , Sung-hyun Chung
发明人： Jae-ho Roh , Jae-hyun Koo , Jae-Min Ahn , Min-joong Rim , Sung-hyun Chung
IPC分类号： H04L1/08 , H04J11/00 , H04K1/10 , H04L27/26 , H04L27/28 , H04W16/00
CPC分类号： H04L1/08 , H04K1/04 , H04K1/10 , H04L5/0046
摘要： A method for seamlessly receiving a symbol from a transmitting end at a receiving end even when error occurs in a certain radio resource of a multiband OFDM system that transmits a same symbol at least two times. The multiband OFDM system includes a transmitting end selecting two radio resources from at least three radio resources and consecutively transmitting a symbol using the selected radio resources, and a receiving end receiving the symbol from the transmitting end.
摘要翻译：即使发送至少两次发送相同符号的多频带OFDM系统的某个无线资源发生错误，也可以在接收端从发送端无缝地接收符号的方法。多频带OFDM系统包括从至少三个无线电资源中选择两个无线电资源并使用所选择的无线电资源连续发送符号的发送端，以及从发送端接收该符号的接收端。

3. 发明申请

US20070075709A1 Method and apparatus for detecting minute oscillation and WiBro repeater having the same 失效
标题翻译：用于检测微振荡的方法和装置以及具有该振荡的WiBro中继器
公开(公告)号：US20070075709A1
公开(公告)日：2007-04-05
申请号：US11516399
申请日：2006-09-06
申请人： Sung-hyun Chung , Min-joong Rim , Hyun-uk Shin
发明人： Sung-hyun Chung , Min-joong Rim , Hyun-uk Shin
IPC分类号： G01R19/00 , G01R31/00
CPC分类号： H04B7/15585
摘要： Disclosed are a method and apparatus for detecting minute oscillation in a WiBro repeater, and the WiBro repeater having the same. The method of detecting minute oscillation in a WiBro repeater includes: calculating an autocorrelation value of an input signal inputted to the repeater; calculating energy of the input signal; calculating the amount of oscillation by dividing the autocorrelation value by the energy; and comparing the amount of oscillation with a predetermined threshold value to determine whether or not the minute oscillation occurs in the repeater.
摘要翻译：公开了一种用于检测WiBro中继器中的微小振荡的方法和装置，以及具有该WiBro中继器的WiBro中继器。在WiBro中继器中检测微小振荡的方法包括：计算输入到中继器的输入信号的自相关值; 计算输入信号的能量; 通过将自相关值除以能量来计算振荡量; 以及将振荡量与预定阈值进行比较，以确定在中继器中是否发生微小振荡。

4. 发明申请

US20070014254A1 Method and apparatus for measuring uplink data throughput in WiBro repeater 审中-公开
标题翻译：用于测量WiBro中继器上行数据吞吐量的方法和装置
公开(公告)号：US20070014254A1
公开(公告)日：2007-01-18
申请号：US11432786
申请日：2006-05-11
申请人： Sung-hyun Chung , Min-joong Rim , Mi-seon Jeong
发明人： Sung-hyun Chung , Min-joong Rim , Mi-seon Jeong
IPC分类号： H04B7/185
CPC分类号： H04B17/345 , H04B17/327 , H04L43/50
摘要： Disclosed is a method of measuring the throughput of uplink data in a WiBro repeater, the method including the operations of: (a) extracting a plurality of tiles from a predetermined number of symbols that are collected over a plurality of times by performing frequency conversion on the uplink data; (b) calculating power values for the respective extracted tiles; (c) calculating an average noise value from the calculated power values; (d) calculating a threshold value, which is used to identify noise, from the average noise value, and calculating the number of tiles having power values more than the threshold value; and (e) calculating the throughput by estimating based on the number of the tiles the number of subchannels carrying data.
摘要翻译：本发明公开了一种测量WiBro中继器中的上行数据吞吐量的方法，该方法包括以下操作的方法：（a）通过对多个片段进行频率转换，从多个符号中抽出多个片段，上行数据; （b）计算各抽取瓦片的功率值; （c）从所计算的功率值计算平均噪声值; （d）从所述平均噪声值计算用于识别噪声的阈值，以及计算功率值大于所述阈值的瓦片的数量; 以及（e）通过基于瓦片的数量估计携带数据的子信道的数量来计算吞吐量。

5. 发明授权

US07797617B2 Interleaving method in OFDM system 有权
标题翻译： OFDM系统中的交织方法
公开(公告)号：US07797617B2
公开(公告)日：2010-09-14
申请号：US11268473
申请日：2005-11-08
申请人： Jeong-sang Lee , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim
发明人： Jeong-sang Lee , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim
IPC分类号： H03M13/03
CPC分类号： H04L1/0041 , H04L1/0071 , H04L27/2608
摘要： Provided is an interleaving method that can reduce error occurring during transmission at a receiving end in an Orthogonal Frequency Division Multiplexing (OFDM) system. According to the interleaving method, transmitted data bits are recorded in an interleaving memory; and the stored data bits are read based on a predetermined sequence to perform symbol interleaving, tone interleaving and cyclic shift simultaneously. Also, to simplify the logic of the OFDM system, the data bits transmitted from an interleaver go through Fast Fourier Transform (FFT) mapping, and the FFT mapped data bits are modulated. In short, the logic can be simplified by performing FFT mapping followed by modulation.
摘要翻译：提供了一种可以减少在正交频分复用（OFDM）系统中的接收端发送期间发生的错误的交织方法。根据交织方法，发送的数据位被记录在交织存储器中; 并且基于预定的顺序读取存储的数据位，以同时进行符号交织，色调交织和循环移位。此外，为了简化OFDM系统的逻辑，从交织器发送的数据位通过快速傅里叶变换（FFT）映射，并且对FFT映射的数据位进行调制。简而言之，可以通过执行FFT映射并进行调制来简化逻辑。

6. 发明申请

US20060129620A1 FFT apparatus for high data rate and method thereof 有权
标题翻译：用于高数据速率的FFT装置及其方法
公开(公告)号：US20060129620A1
公开(公告)日：2006-06-15
申请号：US11233138
申请日：2005-09-23
申请人： Jeong-sang Lee , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim
发明人： Jeong-sang Lee , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim
IPC分类号： G06F17/14
CPC分类号： G06F17/142
摘要： An FFT apparatus for quickly processing input signals and method thereof is disclosed. In performing the FFT for processing N input signals, four N/4-point FFT units implemented by radix-2 single-path delay feedback (R2SDF) units performs the FFT with respect to the input signals, and a radix-4 computation unit performs a radix-4 computation with respect to the signals transferred from the N/4-point FFT units. Accordingly, the input signals are processed in parallel through the N/4-point FFT units, and thus a quick process of the input signals can be performed.
摘要翻译：公开了一种用于快速处理输入信号的FFT装置及其方法。在执行用于处理N个输入信号的FFT时，由基数2单路延迟反馈（R2SDF）单元实现的四个N / 4点FFT单元相对于输入信号执行FFT，并且基数-4计算单元执行相对于从N / 4点FFT单元传送的信号的基数-4计算。因此，输入信号通过N / 4点FFT单元并行处理，因此可以执行输入信号的快速处理。

7. 发明申请

US20060072689A1 Matched filter and cross correlation method 审中-公开
标题翻译：匹配滤波器和互相关法
公开(公告)号：US20060072689A1
公开(公告)日：2006-04-06
申请号：US11236596
申请日：2005-09-28
申请人： Yun-young Kim , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim , Jae-ho Roh , Jae-hyun Koo
发明人： Yun-young Kim , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim , Jae-ho Roh , Jae-hyun Koo
IPC分类号： H04L27/06
CPC分类号： H03H17/0254 , H04B1/7093 , H04B1/71637
摘要： Disclosed is a matched filter and a method for performing cross correlation thereof. The matched filter includes a demultiplexer for demultiplexing an input sample signal into a predetermined number of signals; and cross correlators that perform a cross correlation of each of the demultiplexed sample signals with a predetermined sequence. Therefore, when the matched filter of the present invention is applied to a UWB system having a high sampling rate, the cross correlation operation can be performed at a high rate simply by using low-rate multipliers.
摘要翻译：公开了一种匹配滤波器及其互相关的方法。匹配滤波器包括用于将输入采样信号解复用为预定数量的信号的解复用器; 以及交叉相关器，其执行每个解复用的采样信号与预定序列的互相关。因此，当将本发明的匹配滤波器应用于具有高采样率的UWB系统时，可以简单地通过使用低速率乘法器以高速率执行互相关运算。

8. 发明授权

US07680870B2 FFT apparatus for high data rate and method thereof 有权
标题翻译：用于高数据速率的FFT装置及其方法
公开(公告)号：US07680870B2
公开(公告)日：2010-03-16
申请号：US11233138
申请日：2005-09-23
申请人： Jeong-sang Lee , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim
发明人： Jeong-sang Lee , Sung-hyun Chung , Jae-min Ahn , Min-joong Rim
IPC分类号： G06F17/14
CPC分类号： G06F17/142
摘要： An FFT apparatus for quickly processing input signals and method thereof is disclosed. In performing the FFT for processing N input signals, four N/4-point FFT units implemented by radix-2 single-path delay feedback (R2SDF) units performs the FFT with respect to the input signals, and a radix-4 computation unit performs a radix-4 computation with respect to the signals transferred from the N/4-point FFT units. Accordingly, the input signals are processed in parallel through the N/4-point FFT units, and thus a quick process of the input signals can be performed.
摘要翻译：公开了一种用于快速处理输入信号的FFT装置及其方法。在执行用于处理N个输入信号的FFT时，由基数2单路延迟反馈（R2SDF）单元实现的四个N / 4点FFT单元相对于输入信号执行FFT，并且基数-4计算单元执行相对于从N / 4点FFT单元传送的信号的基数-4计算。因此，输入信号通过N / 4点FFT单元并行处理，因此可以执行输入信号的快速处理。

9. 发明授权

US07304468B2 Method and apparatus for detecting minute oscillation and WiBro repeater having the same 失效
公开(公告)号：US07304468B2
公开(公告)日：2007-12-04
申请号：US11516399
申请日：2006-09-06
申请人： Sung-hyun Chung , Min-joong Rim , Hyun-uk Shin
发明人： Sung-hyun Chung , Min-joong Rim , Hyun-uk Shin
IPC分类号： G01R23/00 , H04B7/15
CPC分类号： H04B7/15585
摘要： Disclosed are a method and apparatus for detecting minute oscillation in a WiBro repeater, and the WiBro repeater having the same. The method of detecting minute oscillation in a WiBro repeater includes: calculating an autocorrelation value of an input signal inputted to the repeater; calculating energy of the input signal; calculating the amount of oscillation by dividing the autocorrelation value by the energy; and comparing the amount of oscillation with a predetermined threshold value to determine whether or not the minute oscillation occurs in the repeater.

10. 发明申请

US20070014252A1 Method and apparatus for positioning portable subscriber station in WiBro network, and repeater having the same 审中-公开
标题翻译：用于在WiBro网络中定位便携式用户台的方法和装置，以及具有相同的中继器
公开(公告)号：US20070014252A1
公开(公告)日：2007-01-18
申请号：US11300238
申请日：2005-12-14
申请人： Sung-hyun Chung , Min-joong Rim
发明人： Sung-hyun Chung , Min-joong Rim
IPC分类号： H04J3/08
CPC分类号： G01S5/0273 , G01S5/14 , H04W64/00
摘要： Disclosed is a method and apparatus for positioning a portable subscriber station (PSS) using a WiBro repeater, and a repeater having the apparatus. The method of positioning the portable subscriber station in a network having a radio access station (RAS) and a repeater, including the operations of: detecting a preamble signal transmitted from the RAS; generating a reference time by measuring a receiving time of the preamble signal and by compensating the receiving time of the preamble signal by taking into consideration a signal delay time between the RAS and the repeater; measuring a receiving time of a ranging signal received from the PSS on the basis of the reference time; and calculating the receiving time of the ranging signal by using a time stamp generated on the basis of the receiving time of the preamble signal.
摘要翻译：公开了一种使用WiBro中继器定位便携式用户台（PSS）的方法和装置，以及具有该装置的中继器。将便携式用户站定位在具有无线电接入站（RAS）和中继器的网络中的方法，包括以下操作：检测从RAS发送的前导码信号; 通过测量前导信号的接收时间并通过考虑RAS与中继器之间的信号延迟时间来补偿前导信号的接收时间来产生参考时间; 基于参考时间测量从PSS接收的测距信号的接收时间; 以及通过使用基于前导码信号的接收时间生成的时间标记来计算测距信号的接收时间。

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