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1. 发明授权

US08139684B2 Apparatus and method for processing multi-channel signals and multi-channel receiver using the same 失效
标题翻译：用于处理多声道信号的装置和方法以及使用其的多声道接收机
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。

2. 发明申请

US20110069787A1 Apparatus and Method for Processing Multi-Channel Signals and Multi-Channel Receiver Using the Same 失效
标题翻译：用于处理多信道信号的装置和方法以及使用其的多信道接收机
公开(公告)号：US20110069787A1
公开(公告)日：2011-03-24
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： H04L27/22 , H04B1/18
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。

3. 发明申请

US20110026617A1 Method for Estimating Transmission Modes and Lengths of Guard Intervals Using the Guard Intervals of OFDM Symbols 审中-公开
标题翻译：使用OFDM符号的保护间隔估计传输模式和保护间隔长度的方法
公开(公告)号：US20110026617A1
公开(公告)日：2011-02-03
申请号：US12574354
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： H04K1/10 , H04L27/06
CPC分类号： H04L27/2607 , H04L27/2657 , H04L27/2662
摘要： There is provided a method for effectively estimating transmission modes and lengths of guard intervals in the implementation of an integrated services digital broadcasting-T (ISDB-T) receiver. A method for estimating transmission modes and lengths of guard intervals in a broadcasting system having signals transmitted therein, the signals having a plurality of transmission modes, the transmission modes each having plural kinds of transmission symbols, the transmission symbols in each of the transmission modes having the same length of data intervals and different lengths of guard intervals, the transmission symbols in different transmission modes having different lengths of data intervals and different lengths of guard intervals, the guard interval in each of transmission symbols being obtained by copying a rear section of the data interval in each of the symbols and prefixing the copied rear section to a front section of the data interval, and one of the transmission symbols being periodically repeated, the method comprising: performing correlation while scanning the signals using a plurality of correlation windows respectively corresponding to the plurality of transmission modes; selecting the transmission mode corresponding to the correlation window having an outputted correlation result among the plurality of correlation windows as a transmission mode of a received signal; and estimating a existing time of the correlation result as the length of a guard interval in the received signal.
摘要翻译：提供了一种在综合业务数字广播T（ISDB-T）接收机的实现中有效地估计保护间隔的传输模式和长度的方法。一种用于估计其中发送信号的广播系统中的保护间隔的传输模式和长度的方法，具有多种传输模式的信号，每种传输模式具有多种传输符号，每种传输模式中的传输符号具有相同长度的数据间隔和不同长度的保护间隔，不同传输模式下的传输符号具有不同长度的数据间隔和不同长度的保护间隔，每个传输符号中的保护间隔是通过复制在每个符号中的数据间隔并且将复制的后部前缀到数据间隔的前部，并且周期性地重复发送符号中的一个，所述方法包括：在使用多个相关窗口分别对应地扫描信号时执行相关性到多个传输模式; 选择与所述多个相关窗口中具有输出的相关结果的相关窗口对应的传输模式作为接收信号的传输模式; 以及将相关结果的现有时间估计为接收信号中的保护间隔的长度。

4. 发明授权

US07839898B2 Apparatus, method, receiver, and computer readable medium for time synchronization offset compensation 有权
标题翻译：用于时间同步偏移补偿的装置，方法，接收机和计算机可读介质
公开(公告)号：US07839898B2
公开(公告)日：2010-11-23
申请号：US11755099
申请日：2007-05-30
申请人： Hwangsoo Lee , Young Serk Shim , Moohong Lee
发明人： Hwangsoo Lee , Young Serk Shim , Moohong Lee
IPC分类号： H04J3/06
CPC分类号： H04L27/2662 , H04L27/2675
摘要： Provided are an apparatus, a method, a receiver, and a computer readable recording medium for time synchronization offset compensation. The apparatus includes an average time synchronization offset calculator, a reference clock frequency difference calculator, and a time synchronization offset compensator. The average time synchronization offset calculator calculates an average time synchronization offset between a phase reference symbol of a time-synchronization acquired frame and phase reference symbols of frames subsequent to the time-synchronization acquired frame. The reference clock frequency difference calculator calculates a reference clock frequency difference between a transmitter and a receiver. The time synchronization offset compensator compensates a time synchronization offset.
摘要翻译：提供了一种用于时间同步偏移补偿的装置，方法，接收机和计算机可读记录介质。该装置包括平均时间同步偏移计算器，参考时钟频率差计算器和时间同步偏移补偿器。平均时间同步偏移计算器计算时间同步获取帧的相位参考符号与时间同步获取帧之后的帧的相位参考符号之间的平均时间同步偏移。参考时钟频率差计算器计算发射机和接收机之间的参考时钟频率差。时间同步偏移补偿器补偿时间同步偏移。

5. 发明申请

US20080165674A1 Apparatus, Method, Receiver, And Computer Readable Medium For Time Synchronization Offset Compensation 有权
标题翻译：装置，方法，接收机和计算机可读介质用于时间同步偏移补偿
公开(公告)号：US20080165674A1
公开(公告)日：2008-07-10
申请号：US11755099
申请日：2007-05-30
申请人： Hwangsoo Lee , Young Serk Shim , Moohong Lee
发明人： Hwangsoo Lee , Young Serk Shim , Moohong Lee
IPC分类号： H04J11/00
CPC分类号： H04L27/2662 , H04L27/2675
摘要： Provided are an apparatus, a method, a receiver, and a computer readable recording medium for time synchronization offset compensation. The apparatus comprises an average time synchronization offset calculator, a reference clock frequency difference calculator, and a time synchronization offset compensator. The average time synchronization offset calculator calculates an average time synchronization offset between a phase reference symbol of a time-synchronization acquired frame and phase reference symbols of frames subsequent to the time-synchronization acquired frame. The reference clock frequency difference calculator calculates a reference clock frequency difference between a transmitter and a receiver. The time synchronization offset compensator compensates a time synchronization offset.
摘要翻译：提供了一种用于时间同步偏移补偿的装置，方法，接收机和计算机可读记录介质。该装置包括平均时间同步偏移计算器，参考时钟频率差计算器和时间同步偏移补偿器。平均时间同步偏移计算器计算时间同步获取帧的相位参考符号与时间同步获取帧之后的帧的相位参考符号之间的平均时间同步偏移。参考时钟频率差计算器计算发射机和接收机之间的参考时钟频率差。时间同步偏移补偿器补偿时间同步偏移。

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