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1. 发明申请

US20080219148A1 SYSTEM AND METHOD FOR TRANSMITTING DATAIN A MULTIPLE-BRANCH TRANSMITTER-DIVERSITY ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING (OFDM) SYSTEM 审中-公开
标题翻译：用于发送多分支发射机多路径正交频分多址（OFDM）系统的系统和方法
公开(公告)号：US20080219148A1
公开(公告)日：2008-09-11
申请号：US12124290
申请日：2008-05-21
申请人： Kuo-Hui Li , Charles Huang , Mao-Ching Chiu , Hung-Kun Chen , Chao-Ming Chang
发明人： Kuo-Hui Li , Charles Huang , Mao-Ching Chiu , Hung-Kun Chen , Chao-Ming Chang
IPC分类号： H04J11/00
CPC分类号： H04L27/2626 , H04L1/0618
摘要： A system and method for transmitting data in multiple-branch transmitter-diversity OFDM systems is presented. In one embodiment, an approach is taken where an inverse Fourier transform (IFT) is performed on data prior to encoding the data for transmission in the multiple-branch transmitter-diversity system. In another embodiment an IFT is performed on data prior to encoding the data using a space-time block code (STBC) algorithm.
摘要翻译：提出了一种在多分支发射机分集OFDM系统中传输数据的系统和方法。在一个实施例中，采用对在多分支发射机分集系统中传输数据进行编码之前的数据执行逆傅里叶变换（IFT）的方法。在另一实施例中，使用空时块码（STBC）算法在对数据进行编码之前对数据执行IFT。

2. 发明授权

US07272108B2 Channel estimation in orthogonal frequency-division multiplexing (OFDM) systems 有权
标题翻译：正交频分复用（OFDM）系统中的信道估计
公开(公告)号：US07272108B2
公开(公告)日：2007-09-18
申请号：US10308513
申请日：2002-12-03
申请人： Kuo Hui Li , Charles Huang , Mao-Ching Chiu , Hung-Kun Chen , Chao-Ming Chang
发明人： Kuo Hui Li , Charles Huang , Mao-Ching Chiu , Hung-Kun Chen , Chao-Ming Chang
IPC分类号： H04J11/00 , H04K1/10 , H04B7/10
CPC分类号： H04L5/0048 , H04B7/0613 , H04L1/0618 , H04L5/0023 , H04L25/0204 , H04L25/0226 , H04L25/0228
摘要： A system and method for estimating channel characteristics in orthogonal frequency-division multiplexing (OFDM) systems with transmitter diversity is presented. The disclosed approach is compatible with the Institute of Electrical and Electronics Engineers (IEEE) “Wireless Local Area Network (LAN) Medium Access Control (MAC) and Physical Layer (PHY) Specification.” In the disclosed system and method, an additional training symbol is transmitted during the data period. This provides additional information that may be used to more accurately estimate channel characteristics.
摘要翻译：提出了一种用于估计具有发射机分集的正交频分复用（OFDM）系统中的信道特性的系统和方法。所公开的方法与电气和电子工程师协会（IEEE）“无线局域网（LAN）媒体接入控制（MAC）和物理层（PHY）规范”兼容。在所公开的系统和方法中，在数据周期期间传送附加的训练符号。这提供了可用于更准确地估计信道特性的附加信息。

3. 发明授权

US07394754B2 System and method for transmitting data in a multiple-branch transmitter-diversity orthogonal frequency-division multiplexing (OFDM) system 有权
标题翻译：用于在多分支发射机 - 分集正交频分复用（OFDM）系统中传输数据的系统和方法
公开(公告)号：US07394754B2
公开(公告)日：2008-07-01
申请号：US10301046
申请日：2002-11-21
申请人： Kuo Hui Li , Charles Huang , Mao-Ching Chiu , Hung-Kun Chen , Chao-Ming Chang
发明人： Kuo Hui Li , Charles Huang , Mao-Ching Chiu , Hung-Kun Chen , Chao-Ming Chang
IPC分类号： H04J11/00 , H04L27/00 , H04B1/04
CPC分类号： H04L27/2626 , H04L1/0618
摘要： A system and method for transmitting data in multiple-branch transmitter-diversity OFDM systems is presented. In one embodiment, an approach is taken where an inverse Fourier transform (IFT) is performed on data prior to encoding the data for transmission in the multiple-branch transmitter-diversity system. In another embodiment an IFT is performed on data prior to encoding the data using a space-time block code (STBC) algorithm.
摘要翻译：提出了一种用于在多分支发射机分集OFDM系统中传输数据的系统和方法。在一个实施例中，采用对在多分支发射机分集系统中传输数据进行编码之前的数据执行逆傅里叶变换（IFT）的方法。在另一实施例中，使用空时块码（STBC）算法在对数据进行编码之前对数据执行IFT。

4. 发明授权

US07254185B2 Method for recovering a digital data content in a communication system and apparatus for performing the same 有权
标题翻译：在通信系统中恢复数字数据内容的方法及其执行方法
公开(公告)号：US07254185B2
公开(公告)日：2007-08-07
申请号：US10065678
申请日：2002-11-07
申请人： Mao-Ching Chiu , Chi-Chao Chao , Chao-Ming Chang , Tai-Yuan Cheng , Hung-Kun Chen
发明人： Mao-Ching Chiu , Chi-Chao Chao , Chao-Ming Chang , Tai-Yuan Cheng , Hung-Kun Chen
IPC分类号： H03K9/00
CPC分类号： H04L7/0029 , H04L7/0004
摘要： A method is directed to recovering a digital data content in a communication system, wherein the digital data content has been converted into an analog signal based on a primary clock, at a transmitter for transmitting to a receiver. The method comprises receiving the analog signal by the receiver. The analog signal is converted into a digital signal, based on a clock of the receiver. The digital signal is interpolated at the desired interpolation point, if digital signal in time has been shifted by an amount equal to or larger than a predetermined time length. The interpolated digital signal is recovered back to the digital data content, with the assist of an estimated channel impulse response. The channel impulse response is retrained every time when the interpolation point is significantly changed.
摘要翻译：一种方法涉及在通信系统中恢复数字数据内容，其中在用于发送到接收机的发射机处，数字数据内容已经被转换为基于主时钟的模拟信号。该方法包括由接收器接收模拟信号。基于接收机的时钟，模拟信号被转换为数字信号。数字信号在期望的插补点被内插，如果时间上的数字信号被移位了等于或大于预定时间长度的量。借助于估计的信道脉冲响应的辅助，内插的数字信号被恢复回数字数据内容。每当插补点显着改变时，重新训练通道脉冲响应。

5. 发明授权

US07177377B2 Avoidance mechanism for co-channel interference in a network 有权
标题翻译：网络中同频干扰的避免机制
公开(公告)号：US07177377B2
公开(公告)日：2007-02-13
申请号：US10463143
申请日：2003-06-17
申请人： Kuo-Ming Wu , Hung-Kun Chen , Mao-Ching Chiu , Jui-Hsi Cheng
发明人： Kuo-Ming Wu , Hung-Kun Chen , Mao-Ching Chiu , Jui-Hsi Cheng
IPC分类号： H04B14/06
CPC分类号： C30B25/18 , H04L27/0014 , H04L2027/0065
摘要： An avoidance method for co-channel interference in a wireless network. The first step of the method is to evaluate an interference measure on each subcarrier. Based on the interference measure of each subcarrier, a peak-to-average measure ratio of interference within the received symbol is then obtained. If the peak-to-average measure ratio of interference is greater than a predetermined threshold, a most interfered subcarrier at which the maximal interference measure occurs is detected. Accordingly, a downgrading factor is set for the most interfered subcarrier.
摘要翻译：一种用于无线网络中同信道干扰的回避方法。该方法的第一步是评估每个子载波的干扰测量。基于每个子载波的干扰测量，然后获得接收符号内的干扰的峰均平均测量比。如果干扰的峰均平均测量比大于预定阈值，则检测发生最大干扰测量的最受干扰的子载波。因此，对最受干扰的子载波设置降级因子。

6. 发明授权

US07123662B2 OFDM detection apparatus and method for networking devices 有权
公开(公告)号：US07123662B2
公开(公告)日：2006-10-17
申请号：US10463743
申请日：2003-06-17
申请人： Kuo-Hui Li , Hung-Kun Chen
发明人： Kuo-Hui Li , Hung-Kun Chen
IPC分类号： H04K1/10 , H04L27/04 , H04J11/00
CPC分类号： H04L27/0014 , C30B25/18 , H04L2027/0065
摘要： An OFDM detection apparatus and method for networking devices. First, a sample sequence is taken from the beginning of a newly arrived network packet. Next, a first correlation sequence between the complex conjugate of the sample sequence and the sample sequence with a lag of N samples is formed. In the meantime, a second correlation sequence between the complex conjugate of the sample sequence and the sample sequence with a lag of M samples is also formed. The first and the second correlation sequence are then normalized. Depending on a comparison between the first normalized correlation sequence and a first predetermined threshold as well as another comparison between the second normalized correlation sequence and a second predetermined threshold, the newly arrived network packet is determined accordingly whether it is an OFDM modulated packet.

7. 发明申请

US20100302750A1 DISPLAY SUBSTRATE HAVING ARCHED SIGNAL TRANSMISSION LINE AND MANUFACTURE METHOD THEREOF 有权
标题翻译：具有编组信号传输线的显示基板及其制造方法
公开(公告)号：US20100302750A1
公开(公告)日：2010-12-02
申请号：US12723321
申请日：2010-03-12
申请人： Hung-Kun Chen , Chi-Chin Lin
发明人： Hung-Kun Chen , Chi-Chin Lin
IPC分类号： H05K1/11 , H05K3/32
CPC分类号： H01L27/1259 , G09G3/3208 , G09G2300/0426 , H05K1/0268 , H05K3/0052 , H05K2201/09245 , H05K2201/09263 , H05K2201/09272 , H05K2203/175
摘要： This invention discloses a display device mother substrate, a display device substrate and a manufacture method of display device substrate thereof. The display device mother substrate includes a first substrate, a second substrate, a first active area circuit and a first transmission line, wherein a first cutting line is defined between the first substrate and the second substrate. The first active area circuit is disposed on the first substrate and is electrically connected to the first transmission line. The first transmission line includes a display line portion, an end line portion and a middle line portion, wherein the display line portion is electrically connected to the first active area circuit. The middle line portion is disposed on the second substrate, wherein two ends of the middle line portion are electrically connected to the display line portion and the end line portion respectively at the first cutting line. The display device mother substrate is cut along the first cutting line to be separated into the first substrate and the second substrate, wherein the middle line portion is also separated from the display line portion and the end line portion.
摘要翻译：本发明公开了一种显示装置母板，显示装置用基板及其显示装置用基板的制造方法。显示装置母板包括第一基板，第二基板，第一有源区电路和第一传输线，其中在第一基板和第二基板之间限定第一切割线。第一有源区电路设置在第一基板上，并与第一传输线电连接。第一传输线包括显示线部分，端部线部分和中间线部分，其中显示线部分电连接到第一有源区电路。中间线部分设置在第二基板上，其中中间线部分的两端分别在第一切割线处电连接到显示线部分和端部线部分。显示装置母基板沿着第一切割线切割以分离成第一基板和第二基板，其中中间线部分也与显示线部分和端部线部分分离。

8. 发明授权

US07251283B2 Timing offset compensation in orthogonal frequency division multiplexing systems 有权
标题翻译：正交频分复用系统中的定时偏移补偿
公开(公告)号：US07251283B2
公开(公告)日：2007-07-31
申请号：US10689424
申请日：2003-10-20
申请人： Hung-Kun Chen
发明人： Hung-Kun Chen
IPC分类号： H04K1/10
CPC分类号： H04L27/2662 , H04L25/0202 , H04L27/2695
摘要： A robust timing offset compensation scheme for multi-carrier systems. According to the invention, a timing offset compensator is provided to compensate a current symbol in the frequency domain for the effect of timing offset with a timing offset prediction value. Then a timing error estimator calculates a timing error value for the current symbol based on a function of a phase tracking value, a channel response of each pilot subcarrier, transmitted data on each pilot subcarrier, and a timing compensated version of the current symbol on the pilot subcarrier locations. Furthermore, a timing tracking unit receives the timing error value of the current symbol to generate a shift amount of the DFT window and the timing offset prediction value for a next symbol.
摘要翻译：一种用于多载波系统的鲁棒定时偏移补偿方案。根据本发明，提供了一种定时偏移补偿器，用于利用定时偏移预测值来补偿频域中的当前符号以用于定时偏移的影响。然后，定时误差估计器基于相位跟踪值的函数，每个导频子载波的信道响应，每个导频副载波上的发送数据以及当前符号的定时补偿版本，计算当前符号的定时误差值导频副载波位置。此外，定时跟踪单元接收当前符号的定时误差值，以产生用于下一个符号的DFT窗口的移位量和定时偏移预测值。

9. 发明授权

US07012971B2 Channel quality assessment method and system for performing the same 失效
标题翻译：渠道质量评估方法和系统执行相同
公开(公告)号：US07012971B2
公开(公告)日：2006-03-14
申请号：US09929165
申请日：2001-08-14
申请人： Hung-Kun Chen , Kwang-Cheng Chen
发明人： Hung-Kun Chen , Kwang-Cheng Chen
IPC分类号： H03K9/00
CPC分类号： H04B1/7143 , H04B1/715 , H04B2001/7154 , H04L1/20
摘要： A channel quality assessment with short assessment time and good frequency resolution is disclosed. Some channels are grouped and their detecting results are collected as whale to determine the channel quality. The channel quality is determined by interference collision ratio, which is the ratio of the number of interference events to the sum of the number of interference events and interference-free events. Interfered channels are disabled form the group. The Channel quality of each of plurality of channels is determined from detection results of each of plurality of groups so as to have a short assessment time and meanwhile a good frequency resolution may be retained.
摘要翻译：披露了具有短评估时间和良好频率分辨率的信道质量评估。一些渠道被分组，其检测结果被收集为鲸鱼以确定信道质量。信道质量由干扰冲突比确定，干扰冲突比是干扰事件数与干扰事件数量和无干扰事件之和的比率。受干扰的通道从组中被禁用。从多个组中的每一个的检测结果确定多个信道中的每一个的信道质量，以便具有短的评估时间，同时可以保持良好的频率分辨率。

10. 发明授权

US08601043B2 Equalizer using infinitive impulse response filtering and associated method 有权
标题翻译：均衡器采用不定式脉冲响应滤波及相关方法
公开(公告)号：US08601043B2
公开(公告)日：2013-12-03
申请号：US11872944
申请日：2007-10-16
申请人： Hung-Kun Chen , Bo-Ju Chen , Zhi-Ren Chang
发明人： Hung-Kun Chen , Bo-Ju Chen , Zhi-Ren Chang
IPC分类号： G06F17/10
CPC分类号： H04R3/04 , H03G5/005
摘要： An equalizer for equalizing an input signal includes an infinitive impulse response (IIR) filtering portion for filtering the input signal to produce N filtered outputs; a gain-adjusting portion coupled to the IIR filtering portion with N gains for adjusting the N filtered outputs to produce N gained outputs, respectively; and an adder for summing the N gained outputs to generate an equalized output signal. N is an integer larger than 2.
摘要翻译：用于均衡输入信号的均衡器包括用于对输入信号进行滤波以产生N个滤波输出的不定性脉冲响应（IIR）滤波部分; 增益调节部分，其耦合到具有N个增益的IIR滤波部分，用于分别调整N个滤波输出以产生N个增益输出; 以及用于对N个增益输出求和的加法器，以产生均衡的输出信号。 N是大于2的整数。

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