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1. 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。

2. 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。

3. 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。

4. 发明申请

US20060164973A1 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：US20060164973A1
公开(公告)日：2006-07-27
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： H04J11/00
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。

5. 发明申请

US20050146978A1 Fast Fourier transform device and method for improving a processing speed thereof 审中-公开
标题翻译：快速傅立叶变换装置及其处理速度的提高方法
公开(公告)号：US20050146978A1
公开(公告)日：2005-07-07
申请号：US11028153
申请日：2005-01-04
申请人： Jeong-sang Lee
发明人： Jeong-sang Lee
IPC分类号： G06F17/14 , G11C8/00
CPC分类号： G06F17/142
摘要： Disclosed is fast Fourier transform device and method for improving a processing speed. The fast Fourier transform device includes a memory part having N memory addresses at which the N data items are written, and having a structure dividing the memory addresses into even-numbered addresses and odd-numbered addresses. An address generation unit generates addresses each including bits except for the most significant bit with respect to the memory addresses. A computation part reads the data items at the even-numbered addresses and odd-numbered addresses based on the addresses generated in the address generation unit, and performing Radix-2 based butterfly computations. The fast Fourier transform device arranges the messed-up memory addresses in order in a new digit-reverse manner. Accordingly, the fast Fourier transform device operates the two butterfly computation structures at the same time so as to reduce the processing time by half as well as to simplify the implementation thereof.
摘要翻译：公开了用于提高处理速度的快速傅立叶变换装置和方法。快速傅立叶变换装置包括具有写入N个数据项的N个存储器地址的存储器部分，并且具有将存储器地址划分为偶数地址和奇数地址的结构。地址生成单元产生各自包括相对于存储器地址的除最高有效位之外的位的地址。计算部分基于在地址生成单元中生成的地址，读取偶数地址和奇数地址上的数据项，并执行基于二进制的蝶形运算。快速傅里叶变换装置按照新的数字反向方式排列乱码的存储器地址。因此，快速傅立叶变换装置同时操作两个蝶形计算结构，以便将处理时间缩短一半以及简化其实现。

6. 发明申请

US20070106926A1 Viterbi decoding method and apparatus for high speed data transmissions 审中-公开
标题翻译：用于高速数据传输的维特比解码方法和装置
公开(公告)号：US20070106926A1
公开(公告)日：2007-05-10
申请号：US11584665
申请日：2006-10-23
申请人： Jeong-sang Lee , Jun Kong
发明人： Jeong-sang Lee , Jun Kong
IPC分类号： H03M13/03
CPC分类号： H03M13/4107 , H03M13/41 , H03M13/4169 , H03M13/6502 , H03M13/6561
摘要： Disclosed are a Viterbi decoding method and apparatus for high speed data transmissions. Branch metric is used with data inputted from a Viterbi decoder used in a communication system, and, when current state metric is used for addition, comparison, and selection, the selection operation is performed after simultaneous addition and comparison operations are performed, so that a faster decoding processing speed is obtained. The decoding process is carried out at a high speed with the addition and comparison operations carried out simultaneously, thereby preventing the increase of power consumption.
摘要翻译：公开了用于高速数据传输的维特比解码方法和装置。分支度量用于从在通信系统中使用的维特比解码器输入的数据，并且当使用当前状态度量进行加法，比较和选择时，在执行同时加法和比较操作之后执行选择操作，使得获得更快的解码处理速度。解码处理通过同时进行的加法和比较操作以高速进行，从而防止功耗的增加。

7. 发明授权

US5206715A Circuit for separating luminance and chrominance signals 失效
标题翻译：用于分离亮度和色度信号的电路
公开(公告)号：US5206715A
公开(公告)日：1993-04-27
申请号：US641274
申请日：1991-01-15
申请人： Jun-mo Jung , Jeong-sang Lee
发明人： Jun-mo Jung , Jeong-sang Lee
IPC分类号： H04N9/77 , H04N9/78
CPC分类号： H04N9/78
摘要： A circuit for separating the luminance signal and chrominance signal from a composite video signal in a digital signal processing system using adaptive 2H comb filters. The circuit according to the present invention generates luminance difference signals, and chrominance difference signals from the horizontal scanning lines of a composite video signal for the purpose of detecting the correlation of the chrominance difference signals as well as the correlation of the luminance difference signals to generate a correlation coefficient. The chrominance signal is accurately separated from a composite video signal in response to the generated correlation coefficient.
摘要翻译：一种用于使用自适应2H梳状滤波器在数字信号处理系统中从复合视频信号中分离亮度信号和色度信号的电路。根据本发明的电路产生亮度差信号和来自复合视频信号的水平扫描线的色度差信号，以便检测色度差信号的相关性以及亮度差信号的相关性以产生相关系数。响应于产生的相关系数，色度信号与复合视频信号精确地分离。

8. 发明授权

US07486609B2 European digital audio broadcast receiver having a simply implementable fast fourier transform processor and an operation method therefor 失效
标题翻译：欧洲数字音频广播接收机具有简单可实现的快速傅里叶变换处理器及其操作方法
公开(公告)号：US07486609B2
公开(公告)日：2009-02-03
申请号：US10626740
申请日：2003-07-25
申请人： Jeong-sang Lee
发明人： Jeong-sang Lee
IPC分类号： H04J11/00
CPC分类号： H04H40/27 , G06F17/142 , H04H20/72 , H04H2201/20 , H04L27/2628
摘要： Disclosed is a European digital audio broadcast receiver having a simply implementable fast Fourier transform processor and an operation method therefor. A digital audio broadcast receiver having diverse fast Fourier transform (FFT) modes based on sizes of transmitted data has an address generator for generating a predetermined number of write addresses and read addresses, a fast Fourier transform (FFT) processor for repeating data of FFT modes to generate a predetermined number of data and implementing a fast Fourier transform (FFT) by using the predetermined number of data, and a controller for controlling the address generator to the write addresses and the read addresses according to operations of the FFT processor.
摘要翻译：公开了具有简单可实现的快速傅里叶变换处理器的欧洲数字音频广播接收机及其操作方法。具有基于发送数据大小的多种快速傅里叶变换（FFT）模式的数字音频广播接收机具有用于产生预定数量的写入地址和读取地址的地址发生器，用于重复FFT模式的数据的快速傅里叶变换（FFT）处理器以产生预定数量的数据并通过使用预定数量的数据实现快速傅里叶变换（FFT），以及控制器，用于根据FFT处理器的操作将地址生成器控制到写地址和读地址。

9. 发明申请

US20070022262A1 Interleaving method and system 有权
标题翻译：交错方式和系统
公开(公告)号：US20070022262A1
公开(公告)日：2007-01-25
申请号：US11485449
申请日：2006-07-13
申请人： Jeong-sang Lee
发明人： Jeong-sang Lee
IPC分类号： G06F13/00
CPC分类号： H03M13/276 , H03M13/2703
摘要： An interleaving method employing symbol interleaving, tone interleaving, and cyclic interleaving for transmitting data includes storing data at write address values in a memory which are sequentially calculated according to a predetermined process, and reading data stored at read address values of the memory which are sequentially calculated according to a predetermined process, wherein the memory has N data banks, each data bank has M storage spaces, and there are D interleaving target data having data numbers A, and the storing data operation includes storing the data at storage spaces of the data banks, the storage spaces corresponding to integer values and the data banks corresponding to remainders obtained by dividing the data numbers A by results of dividing a total number of data D by the number of storage spaces M.
摘要翻译：采用符号交织，色调交织和用于发送数据的循环交织的交织方法包括以写入地址值存储数据，按照预定处理顺序计算的存储器中，以及顺序读取存储在存储器的地址值的数据根据预定处理计算，其中存储器具有N个数据库，每个数据库具有M个存储空间，并且存在具有数据编号A的D个交织目标数据，并且存储数据操作包括将数据存储在数据的存储空间存储空间对应于整数值的存储空间以及对应于通过将数据总数D除以存储空间数M的结果除以数据编号A而获得的余数的数据库。

10. 发明授权

US5166795A Vertical peaking method and the apparatus thereof 失效
标题翻译：垂直扬声方法及其装置
公开(公告)号：US5166795A
公开(公告)日：1992-11-24
申请号：US701750
申请日：1991-05-17
申请人： Jeong-sang Lee , Jong-sang Lim
发明人： Jeong-sang Lee , Jong-sang Lim
IPC分类号： H04N5/208
CPC分类号： H04N5/208
摘要： A vertical peaking method and the apparatus thereof comprises the steps of selectively passing vertical and horizontal detail information by low-pass filtering a video signal to detect image brightness, subtracting the detected image brightness data signal from a maximum allowable value, and multiplying the signal obtained from the subtraction operation by the vertical peaking signal, adding it to the luminance signal to output the luminance signal vertically peaked according to image brightness. The apparatus accomplishes the steps via hardware, in which the amount of vertical peaking is controlled by the image brightness, so that the vertical peaking of an image is accomplished uniformly.
摘要翻译：垂直峰化方法及其装置包括以下步骤：通过对视频信号进行低通滤波来选择性地通过垂直和水平细节信息以检测图像亮度，从最大允许值减去检测到的图像亮度数据信号，并将所获得的信号通过垂直峰化信号的减法运算，将其加到亮度信号中，根据图像亮度垂直输出亮度信号。该装置通过硬件完成步骤，其中垂直峰值的量由图像亮度控制，使得图像的垂直峰值均匀地实现。

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