公开(公告)号：US08139684B2

公开(公告)日：2012-03-20

申请号：US12574464

申请日：2009-10-06

申请人： Hwang Soo Lee ,  Moohong Lee ,  Jeong Han Jeong ,  Byungjik Keum ,  Young Serk Shim

发明人： Hwang Soo Lee ,  Moohong Lee ,  Jeong Han Jeong ,  Byungjik Keum ,  Young Serk Shim

IPC分类号： H03D3/00 ,  H03K9/06

CPC分类号： H04L27/0002 ,  H04L27/0008 ,  H04L27/0012

摘要： Disclosed is a multi-channel signal receiver technology. An RF front-end in an RF receiver receiving at least two RF signals with different transmission bandwidths includes: at least two RF tuners receiving, amplifying, and frequency-converting the at least two RF signals, respectively; a switch selecting one of signals output from the at least two RF tuners; a channel filter eliminating interference signals included in a signal output from the switch, and passing a signal of a transmission band; an ADC converting the signal output from the channel filter into a digital signal; a fixed sampling frequency generator generating and transferring a fixed sampling frequency to the ADC.In the RF front-end, by processing filtering and sampling of signals with a narrow transmission bandwidth through a residual calculation capacity of a digital processor a construction of an RF front-end may be simplified and manufacturing costs may be reduced.

摘要翻译： 公开了一种多通道信号接收机技术。 RF接收器中的RF前端接收具有不同传输带宽的至少两个RF信号，包括：至少两个RF调谐器分别接收，放大和频率转换所述至少两个RF信号; 选择从所述至少两个RF调谐器输出的信号之一的开关; 滤波器，消除包含在从开关输出的信号中的干扰信号，并传递传输频带的信号; ADC将从信道滤波器输出的信号转换为数字信号; 固定的采样频率发生器产生并将固定采样频率传送到ADC。 在RF前端，通过对数字处理器的剩余计算能力对具有窄传输带宽的信号进行滤波和采样，可以简化RF前端的结构，并且可以降低制造成本。

公开(公告)号：US20100131678A1

公开(公告)日：2010-05-27

申请号：US12626857

申请日：2009-11-27

申请人： Hwang-Soo LEE ,  Jung-Keun Kim ,  Il-Song Han ,  Young Serk Shim

发明人： Hwang-Soo LEE ,  Jung-Keun Kim ,  Il-Song Han ,  Young Serk Shim

IPC分类号： G06F13/28

CPC分类号： G06F13/28

摘要： There is provided a direct memory access apparatus and a direct memory access method.The direct memory access apparatus of the present invention comprises: a variable transmission rule map unit for setting a transmission rule with a variable block length and a variable block interval as a unit of memory transmission rule; a direct memory access unit for sending data line of the variable block length and the variable block interval, in case of access to the unit of memory by using the unit of memory transmission rule determined by the variable transmission rule map unit; and an interface unit for retrieving the unit of memory transmission rule, which is necessary for sending the data line of the variable block length and the variable block interval, from the variable transmission rule map unit and sending the unit of memory transmission rule to the direct memory access unit.

摘要翻译： 提供了直接存储器访问装置和直接存储器访问方法。 本发明的直接存储器访问装置包括：可变传输规则映射单元，用于将具有可变块长度的传输规则和可变块间隔设置为存储器传输规则的单元; 在通过使用由可变传输规则映射单元确定的存储器发送规则的单元访问存储器单元的情况下，发送可变块长度和可变块间隔的数据线的直接存储器存取单元; 以及用于从可变传输规则映射单元检索用于发送可变块长度和可变块间隔的数据线所必需的存储器传输规则单元的接口单元，并将存储器传输规则单元发送到直接 存储器存取单元。

公开(公告)号：US20080065963A1

公开(公告)日：2008-03-13

申请号：US11556546

申请日：2006-11-03

申请人： Kyungsu Ko ,  Hwang Soo Lee ,  Nguyen Minh Viet

发明人： Kyungsu Ko ,  Hwang Soo Lee ,  Nguyen Minh Viet

IPC分类号： H03M13/00

CPC分类号： H03M13/2936 ,  H03M13/2732

摘要： Provided are a forward error correction decoder and a method thereof. The method comprises: generating mapping information on a location of a symbol; deciding a location of an error in a packet; deciding an erasure of a subsequent packet following the packet on the basis of the error location and the mapping information; and decoding the subsequent packet on the basis of the erasure.

摘要翻译： 提供一种前向纠错解码器及其方法。 该方法包括：生成关于符号的位置的映射信息; 决定分组中错误的位置; 基于所述错误位置和所述映射信息来决定所述分组之后的后续分组的擦除; 并基于擦除对后续分组进行解码。

公开(公告)号：US20100191918A1

公开(公告)日：2010-07-29

申请号：US12651918

申请日：2010-01-04

申请人： Hwang-Soo Lee ,  Jung-Keum Kim ,  Il-Song Han ,  Young Serk Shim

发明人： Hwang-Soo Lee ,  Jung-Keum Kim ,  Il-Song Han ,  Young Serk Shim

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0862 ,  G06F2212/6028

摘要： Disclosed are a cache controller device, an interfacing method and a programming method using the same. The cache controller device prefetching and supplying data distributed in a memory to a main processor, includes: a cache temporarily storing data in a memory block having a limited size; a cache controller circularly reading out the data from the memory block to a cache memory, or transferring the data from the cache memory to the cache; and a memory input/output controller controlling prefetching the data to the cache, or transferring the data from the cache to a memory.

摘要翻译： 公开了一种高速缓存控制器设备，接口方法和使用该方法的编程方法。 高速缓存控制器设备将分配在存储器中的数据预取并提供给主处理器，包括：高速缓冲存储器将数据临时存储在具有有限尺寸的存储器块中; 高速缓存控制器循环地从存储器块读出数据到高速缓冲存储器，或者将数据从高速缓冲存储器传送到高速缓存; 以及控制器将数据预取到高速缓存的存储器输入/输出控制器，或将数据从高速缓存传送到存储器。

公开(公告)号：US20100150181A1

公开(公告)日：2010-06-17

申请号：US12337279

申请日：2008-12-17

申请人： Hwang-Soo LEE ,  Moo-Hong Lee ,  Jeong-Han Jeong ,  Byung-Jik Keum ,  Young-Serk Shim

发明人： Hwang-Soo LEE ,  Moo-Hong Lee ,  Jeong-Han Jeong ,  Byung-Jik Keum ,  Young-Serk Shim

IPC分类号： H04J3/06 ,  H04L27/28

CPC分类号： H04L27/2647 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662

摘要： There is provided an apparatus for receiving a T-DMB signal. The apparatus for receiving a T-DMB signal comprises an input buffer receiving and buffering a T-DMB signal comprising a null symbol and a phase reference symbol (PRS); an initial synchronizing unit estimating and compensating for time and frequency offsets of the T-DMB signal using the null symbol and the PRS; a frame tracking unit performing estimation of the time offset and measurement of a strength of an output signal from the input buffer; an OFDM signal demodulating unit performing I/Q demodulation, frequency compensation, OFDM demodulation and de-interleaving with respect to an output signal of the frame tracking unit; a channel decoding unit performing channel decoding with respect to an output signal of the OFDM signal demodulating unit and checking quality of the channel-decoded signal; and a controller controlling operations of the initial synchronizing unit, the OFDM signal demodulating unit and the channel decoding unit 308 based on the strength of the signal measured by the frame tracking unit and the quality of the signal checked by the channel decoding unit. Accordingly, unnecessary calculating processes arc reduced by measuring the strength and quality of an input signal, thereby maximizing power efficiency of the apparatus.

摘要翻译： 提供了一种用于接收T-DMB信号的装置。 用于接收T-DMB信号的装置包括输入缓冲器，其接收和缓冲包括零符号和相位参考符号（PRS）的T-DMB信号; 初始同步单元使用空符号和PRS估计和补偿T-DMB信号的时间和频率偏移; 帧跟踪单元执行时间偏移的估计和来自输入缓冲器的输出信号的强度的测量; OFDM信号解调单元，相对于帧跟踪单元的输出信号执行I / Q解调，频率补偿，OFDM解调和解交织; 信道解码单元，对OFDM信号解调单元的输出信号进行信道解码，检查信道解码信号的质量; 以及控制器，其基于由帧跟踪单元测量的信号的强度和由信道解码单元检查的信号的质量来控制初始同步单元，OFDM信号解调单元和信道解码单元308的操作。 因此，通过测量输入信号的强度和质量来减少不必要的计算处理，从而使设备的功率效率最大化。

公开(公告)号：US20070201404A1

公开(公告)日：2007-08-30

申请号：US11703597

申请日：2007-02-07

申请人： Jung-Hoon Cheon ,  Jae-Ki Lee ,  Hwang-Soo Lee ,  Chang-Hyun Nam ,  Soo-Bin Lee

发明人： Jung-Hoon Cheon ,  Jae-Ki Lee ,  Hwang-Soo Lee ,  Chang-Hyun Nam ,  Soo-Bin Lee

IPC分类号： H04Q7/00

CPC分类号： H04L47/10 ,  H04L5/0007 ,  H04L5/0064 ,  H04L47/14 ,  H04L47/2416 ,  H04L47/2441 ,  H04L47/29 ,  H04L47/365 ,  H04L47/50 ,  H04L47/522 ,  H04L47/56 ,  H04W72/085

摘要： Provided are a system and a method for allocating resources in a communication system. The method includes mapping a Transmission Time Interval (TTI) class according to channel information transmitted from a mobile station and service class information of the mobile station; and allocating resources by dynamically configuring a frame based on the mapped TTI class.

摘要翻译： 提供一种用于在通信系统中分配资源的系统和方法。 该方法包括根据从移动台发送的信道信息和移动台的业务类别信息映射传输时间间隔（TTI）类; 以及通过基于映射的TTI类动态地配置帧来分配资源。

公开(公告)号：US08300051B2

公开(公告)日：2012-10-30

申请号：US12274495

申请日：2008-11-20

申请人： Seong Dae Kim ,  Keun Dong Lee ,  Su Jung Kim ,  Hwang Soo Lee

发明人： Seong Dae Kim ,  Keun Dong Lee ,  Su Jung Kim ,  Hwang Soo Lee

IPC分类号： G06T17/00 ,  G09G5/02 ,  G09G5/10

CPC分类号： G06T5/008 ,  G06T5/40 ,  G06T2207/20021 ,  G09G3/20 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2320/0686 ,  G09G2360/16

摘要： Disclosed herein is an apparatus for enhancing images in consideration of region characteristics. An inverse gamma correction unit releases gamma correction and linearizes each of Red (R), Green (G), and Blue (B) colors. A threshold calculation unit calculates m-1 thresholds in order to divide the brightness of pixels into m regions, and labels each of the pixels as one of the m brightness regions. A block segmentation unit divides an input image into M×N blocks. A block statistics calculation unit determines one of the m brightness regions to which each of the blocks pertains, and labels the block as the corresponding brightness region. A block-based Look-Up Table (LUT) generation unit generates enhancement LUTs for the respective blocks. An image enhancement unit corrects the image using the LUTs for the respective blocks. A gamma correction unit performs gamma correction.

摘要翻译： 本文公开了一种考虑到区域特征来增强图像的装置。 反伽马校正单元释放伽马校正并将红（R），绿（G）和蓝（B）颜色中的每一个线性化。 阈值计算单元计算m-1个阈值，以将像素的亮度划分为m个区域，并且将每个像素标记为m个亮度区域之一。 块分割单元将输入图像划分成M×N个块。 块统计量计算单元确定每个块所属的m个亮度区域中的一个，并将块标记为相应的亮度区域。 基于块的查找表（LUT）生成单元为各个块生成增强LUT。 图像增强单元使用用于各个块的LUT校正图像。 伽马校正单元进行伽马校正。

公开(公告)号：US08160185B2

公开(公告)日：2012-04-17

申请号：US12338263

申请日：2008-12-18

申请人： Hwang-Soo Lee ,  Byung-Jik Keum ,  Moo-Hong Lee ,  Jeong-Han Jeong ,  Young-Serk Shim

发明人： Hwang-Soo Lee ,  Byung-Jik Keum ,  Moo-Hong Lee ,  Jeong-Han Jeong ,  Young-Serk Shim

IPC分类号： H04L27/06

CPC分类号： H04L27/2662 ,  H04L27/2656 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2675

摘要： There are provided an apparatus for synchronizing an OFDM signal using an open-loop frequency synchronization method, which can estimate and compensate for various types of frequency errors generated in a frequency modulation broadcasting/communication system to which the open-loop frequency synchronization method is applied, and a frequency offset estimation scheme using the apparatus. To this end, the apparatus for synchronizing an OFDM signal using the open-loop frequency synchronization method comprises a time offset estimator, a time offset compensator, a fractional frequency offset estimator, an integer frequency offset estimator, a frequency offset controller and a frequency offset compensator. Accordingly, in the OFDM demodulation broadcasting/communication system using the open-loop frequency synchronization method, a frequency offset, which is generated due to the carrier frequency difference between a transmitter and a receiver, a frequency shift generated due to the mobile environment of a receiver, the temperature characteristic of a local oscillator, and the like, can be estimated and compensated.

摘要翻译： 提供了一种使用开环频率同步方法同步OFDM信号的装置，其可以估计和补偿在应用开环频率同步方法的频率调制广播/通信系统中产生的各种类型的频率误差 以及使用该装置的频率偏移估计方案。 为此，使用开环频率同步方法同步OFDM信号的装置包括时间偏移估计器，时间偏移补偿器，分数频率偏移估计器，整数频率偏移估计器，频率偏移控制器和频率偏移 补偿器 因此，在使用开环频率同步方式的OFDM解调广播/通信系统中，由于发送机与接收机之间的载波频率差异而产生的频率偏移是由于移动环境中产生的频移 接收机，本地振荡器的温度特性等可以被估计和补偿。

公开(公告)号：US08069280B2

公开(公告)日：2011-11-29

申请号：US12626857

申请日：2009-11-27

申请人： Hwang-Soo Lee ,  Jung-Keun Kim ,  Il-Song Han ,  Young Serk Shim

发明人： Hwang-Soo Lee ,  Jung-Keun Kim ,  Il-Song Han ,  Young Serk Shim

IPC分类号： G06F13/28

CPC分类号： G06F13/28

摘要： There is provided a direct memory access apparatus and a direct memory access method.The direct memory access apparatus of the present invention comprises: a variable transmission rule map unit for setting a transmission rule with a variable block length and a variable block interval as a unit of memory transmission rule; a direct memory access unit for sending data line of the variable block length and the variable block interval, in case of access to the unit of memory by using the unit of memory transmission rule determined by the variable transmission rule map unit; and an interface unit for retrieving the unit of memory transmission rule, which is necessary for sending the data line of the variable block length and the variable block interval, from the variable transmission rule map unit and sending the unit of memory transmission rule to the direct memory access unit.

摘要翻译： 提供了直接存储器访问装置和直接存储器访问方法。 本发明的直接存储器访问装置包括：可变传输规则映射单元，用于将具有可变块长度的传输规则和可变块间隔设置为存储器传输规则的单元; 在通过使用由可变传输规则映射单元确定的存储器发送规则的单元访问存储器单元的情况下，发送可变块长度和可变块间隔的数据线的直接存储器存取单元; 以及用于从可变传输规则映射单元检索用于发送可变块长度和可变块间隔的数据线所必需的存储器传输规则单元的接口单元，并将存储器传输规则单元发送到直接 存储器存取单元。

公开(公告)号：US08040964B2

公开(公告)日：2011-10-18

申请号：US12337279

申请日：2008-12-17

申请人： Hwang-Soo Lee ,  Moo-Hong Lee ,  Jeong-Han Jeong ,  Byung-Jik Keum ,  Young-Serk Shim

发明人： Hwang-Soo Lee ,  Moo-Hong Lee ,  Jeong-Han Jeong ,  Byung-Jik Keum ,  Young-Serk Shim

IPC分类号： H04K1/10

CPC分类号： H04L27/2647 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662

摘要： There is provided an apparatus for receiving a T-DMB signal. The apparatus for receiving a T-DMB signal comprises an input buffer receiving and buffering a T-DMB signal comprising a null symbol and a phase reference symbol (PRS); an initial synchronizing unit estimating and compensating for time and frequency offsets of the T-DMB signal using the null symbol and the PRS; a frame tracking unit performing estimation of the time offset and measurement of a strength of an output signal from the input buffer; an OFDM signal demodulating unit performing I/Q demodulation, frequency compensation, OFDM demodulation and de-interleaving with respect to an output signal of the frame tracking unit; a channel decoding unit performing channel decoding with respect to an output signal of the OFDM signal demodulating unit and checking quality of the channel-decoded signal; and a controller controlling operations of the initial synchronizing unit, the OFDM signal demodulating unit and the channel decoding unit 308 based on the strength of the signal measured by the frame tracking unit and the quality of the signal checked by the channel decoding unit. Accordingly, unnecessary calculating processes arc reduced by measuring the strength and quality of an input signal, thereby maximizing power efficiency of the apparatus.

摘要翻译： 提供了一种用于接收T-DMB信号的装置。 用于接收T-DMB信号的装置包括输入缓冲器，其接收和缓冲包括零符号和相位参考符号（PRS）的T-DMB信号; 初始同步单元使用空符号和PRS估计和补偿T-DMB信号的时间和频率偏移; 帧跟踪单元执行时间偏移的估计和来自输入缓冲器的输出信号的强度的测量; OFDM信号解调单元，相对于帧跟踪单元的输出信号执行I / Q解调，频率补偿，OFDM解调和解交织; 信道解码单元，对OFDM信号解调单元的输出信号进行信道解码，检查信道解码信号的质量; 以及控制器，其基于由帧跟踪单元测量的信号的强度和由信道解码单元检查的信号的质量来控制初始同步单元，OFDM信号解调单元和信道解码单元308的操作。 因此，通过测量输入信号的强度和质量来减少不必要的计算处理，从而使设备的功率效率最大化。