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1. 发明授权

US08675787B2 Circuit for detecting a predetermined symbol in a digital data stream and associated method 有权
标题翻译：用于检测数字数据流中的预定符号的电路和相关方法
公开(公告)号：US08675787B2
公开(公告)日：2014-03-18
申请号：US12728912
申请日：2010-03-22
申请人： Kai-Wen Cheng , Ko-Yin Lai , Yi-Ying Liao , Tai-Lai Tung
发明人： Kai-Wen Cheng , Ko-Yin Lai , Yi-Ying Liao , Tai-Lai Tung
IPC分类号： H04L27/06
CPC分类号： H04L27/2647
摘要： A circuit for detecting a predetermined symbol of a digital data stream includes a frequency shifter, a correlator, a filter and a decision unit. The frequency shifter performs inverse-frequency shifting upon a first data to generate a first frequency-shifted data. The correlator calculates correlation upon the first frequency-shifted data and a second data to generate a correlated data. The filter, coupled to the correlator, filters and the correlated data to generate a filtered correlated data according to a time-domain windowing length. The decision unit, coupled to the filter, determines the predetermined symbol from the digital data stream according to the filtered correlated data.
摘要翻译：用于检测数字数据流的预定符号的电路包括移频器，相关器，滤波器和判定单元。移频器对第一数据进行反频移位以产生第一频移数据。相关器计算第一频移数据的相关性和第二数据以产生相关数据。耦合到相关器的滤波器，滤波器和相关数据，以根据时域开窗长度生成经滤波的相关数据。耦合到滤波器的判定单元根据滤波的相关数据从数字数据流中确定预定符号。

2. 发明授权

US08605833B2 Signal processing apparatus and method thereof 有权
标题翻译：信号处理装置及其方法
公开(公告)号：US08605833B2
公开(公告)日：2013-12-10
申请号：US12979755
申请日：2010-12-28
申请人： Tien-Hsin Ho , Shao Ping Hung , Tai Lai Tung
发明人： Tien-Hsin Ho , Shao Ping Hung , Tai Lai Tung
IPC分类号： H03D1/00
CPC分类号： H04B1/7093
摘要： A signal processing apparatus for determining whether a receiving signal is a target signal is provided. The apparatus includes: a sampling device for sampling the receiving signal to generate a plurality of sampled values; a first calculation device, coupled to the sampling device, for generating a plurality of first values according to the sampled values and a plurality of reference values; a second calculation device, coupled to the first calculation device, for grouping the first values into a plurality of value groups, respectively calculating the value groups to generate a plurality of second values and generating a determination value by calculating the second values; and a determination device, coupled to the second calculation device, for determining whether the receiving signal is the target signal by comparing the determination value with a threshold value.
摘要翻译：提供了一种用于确定接收信号是否是目标信号的信号处理装置。该装置包括：采样装置，用于对接收信号进行采样以产生多个采样值; 耦合到采样装置的第一计算装置，用于根据采样值和多个参考值产生多个第一值; 第二计算装置，耦合到第一计算装置，用于将第一值分组为多个值组，分别计算值组以生成多个第二值，并通过计算第二值产生确定值; 以及耦合到所述第二计算装置的确定装置，用于通过将所述确定值与阈值进行比较来确定所述接收信号是否是所述目标信号。

3. 发明授权

US08525932B2 Analog TV signal receiving circuit for reducing signal distortion using equalizer configuring method 有权
标题翻译：模拟电视信号接收电路，使用均衡器配置方式减少信号失真
公开(公告)号：US08525932B2
公开(公告)日：2013-09-03
申请号：US13216356
申请日：2011-08-24
申请人： Ching Fu Lan , Wen Chieh Yang , Yi Hsuan Lai , Hsin Chuan Kuo , You Tsai Cheng , Chin Fu Ho , Jen Hsing Wang , Tai Lai Tung
发明人： Ching Fu Lan , Wen Chieh Yang , Yi Hsuan Lai , Hsin Chuan Kuo , You Tsai Cheng , Chin Fu Ho , Jen Hsing Wang , Tai Lai Tung
IPC分类号： H04N5/00
CPC分类号： H04N5/21
摘要： An analog television (TV) signal receiving circuit and method and an associated equalizer coefficient configuration apparatus and method are disclosed for correcting a distortion problem occurred in a reception process of an analog TV signal by configuring an equalizer in the analog TV signal receiving circuit. The analog TV signal receiving TV includes a tuner, an analog-to-digital converter (ADC), and a demodulator. The tuner receives an analog radio-frequency (RF) TV signal to generate an analog frequency down conversion signal. The ADC generates a digital frequency down conversion signal according to the analog frequency down conversion signal. The demodulator includes a front-end circuit for generating a digital demodulated signal according to the digital frequency down conversion signal, and an equalizer for generating a digital receiving signal according to the digital demodulated signal. The equalizer includes a plurality of correction coefficients that are generated according to a predetermined rule.
摘要翻译：公开了一种模拟电视（TV）信号接收电路和方法以及相关的均衡器系数配置装置和方法，用于通过在模拟TV信号接收电路中配置均衡器来校正在模拟TV信号的接收过程中发生的失真问题。模拟TV信号接收电视包括调谐器，模数转换器（ADC）和解调器。调谐器接收模拟射频（RF）TV信号以产生模拟降频转换信号。 ADC根据模拟频率下变频信号产生数字降频转换信号。解调器包括用于根据数字降频转换信号产生数字解调信号的前端电路，以及用于根据数字解调信号产生数字接收信号的均衡器。均衡器包括根据预定规则生成的多个校正系数。

4. 发明申请

US20130171943A1 Method and Associated Apparatus Applied to Receiver of Wireless Network for Determining Quantity of Antennas of Transmitter 有权
标题翻译：用于确定发射机天线数量的无线网络接收机的方法和相关装置
公开(公告)号：US20130171943A1
公开(公告)日：2013-07-04
申请号：US13471574
申请日：2012-05-15
申请人： Shao-Ping Hung , Tien-Hsin Ho , Tai-Lai Tung , Ching-Hsiang Chuang
发明人： Shao-Ping Hung , Tien-Hsin Ho , Tai-Lai Tung , Ching-Hsiang Chuang
IPC分类号： H04W24/00
CPC分类号： H04W24/04 , H04B17/364 , H04W24/00 , H04W88/00
摘要： A method applied to a receiver of a wireless network for determining an unknown quantity of antennas of a transmitter according to a received network is provided. The method includes: delaying the network signal according to a sum of a reference period and an estimated shift interval to provide a delayed signal; calculating a correlation between the network signal and the delayed signal to generate a correlation index; comparing the correlation index and a threshold to provide a comparison result; and determining the unknown quantity of transmitting antennas according to the comparison result.
摘要翻译：提供了一种应用于无线网络的接收机的方法，用于根据接收的网络确定发射机的未知数量的天线。该方法包括：根据参考周期和估计的移位间隔的和来延迟网络信号以提供延迟的信号; 计算网络信号和延迟信号之间的相关性以产生相关指数; 比较相关指标和阈值以提供比较结果; 并根据比较结果确定发射天线的未知数量。

5. 发明申请

US20100284478A1 Channel Estimating Apparatus and Method Thereof 有权
标题翻译：信道估计装置及方法
公开(公告)号：US20100284478A1
公开(公告)日：2010-11-11
申请号：US12769098
申请日：2010-04-28
申请人： Yi-Ying Liao , Chen-Yi Liu , Tai-Lai Tung
发明人： Yi-Ying Liao , Chen-Yi Liu , Tai-Lai Tung
IPC分类号： H04L27/28
CPC分类号： H04L27/2647 , H04L5/0048 , H04L25/0212 , H04L25/022 , H04L25/0224
摘要： A channel estimating technique is applied to an Orthogonal Frequency-Division Multiplexing (OFDM) communication system which receives a plurality of OFDM symbols. In one aspect, a channel estimating method includes performing Inverse Fast Fourier Transform (IFFT) with a second number of sampling points and a phase shift on each of preliminarily estimated frequency-domain channel responses including a first number of response values corresponding to each of the OFDM symbols, so as to obtain a first time-domain channel impulse response corresponding to each of the OFDM symbols, where the first number is lager than the second number. The method also generates a plurality of frequency-domain channel responses corresponding to the OFDM symbols according to the time-domain channel impulse responses.
摘要翻译：信道估计技术被应用于接收多个OFDM符号的正交频分复用（OFDM）通信系统。在一个方面，一种信道估计方法包括在预估的频域信道响应中的每一个上执行具有第二数量的采样点的逆快速傅立叶变换（IFFT）和相移，包括对应于每个采样点的第一数量的响应值 OFDM符号，以便获得对应于每个OFDM符号的第一时域信道脉冲响应，其中第一个数字比第二个数字大。该方法还根据时域信道脉冲响应产生对应于OFDM符号的多个频域信道响应。

6. 发明申请

US20100284472A1 Method for Reconstructing Digital Video Data Stream and Apparatus Thereof 有权
标题翻译：重建数字视频数据流的方法及其设备
公开(公告)号：US20100284472A1
公开(公告)日：2010-11-11
申请号：US12766268
申请日：2010-04-23
申请人： Yi-Ying Liao , Chien-Jen Hung , Tai-Lai Tung
发明人： Yi-Ying Liao , Chien-Jen Hung , Tai-Lai Tung
IPC分类号： H04N7/12
CPC分类号： H04N21/4305 , H04L27/00 , H04L27/06 , H04L27/28 , H04N7/12 , H04N21/4344 , H04N21/4346 , H04N21/4385
摘要： An apparatus for reconstructing digital video data stream reconstructs a transport stream from a first data stream and a second data stream. Both of the first data stream and the second data stream comprise a plurality of packets, a plurality of input stream time reference (ISCR) values, and a plurality of deleted null packet (DNP) values. The apparatus includes a packet interval detector, that estimates a packet interval according to the first data stream or the second data stream; an alignment unit, that generates an alignment signal according to the ISCR values and the packet interval; an oscillator, coupled to the packet interval detector, that generates an output pulse signal; and a reconstruction controller, that reconstructs the transport stream from the first data stream and the second data stream and outputs the transport stream according to the alignment signal and the output pulse signal. The alignment unit includes a fine tuner for fine tuning a frequency of the output pulse signal according to the ISCR values and a local count.
摘要翻译：用于重建数字视频数据流的装置从第一数据流和第二数据流重构传输流。第一数据流和第二数据流都包括多个分组，多个输入流时间基准（ISCR）值和多个删除的空分组（DNP）值。该装置包括分组间隔检测器，其根据第一数据流或第二数据流估计分组间隔; 对准单元，其根据ISCR值和分组间隔生成对准信号; 耦合到分组间隔检测器的振荡器，其生成输出脉冲信号; 以及重建控制器，其重建来自第一数据流和第二数据流的传输流，并根据对准信号和输出脉冲信号输出传输流。对准单元包括精细调谐器，用于根据ISCR值和本地计数微调输出脉冲信号的频率。

7. 发明授权

US07212595B2 Reduced complexity time-frequency trained equalizer for discrete multi-tone based DSL systems 有权
标题翻译：用于离散多音调DSL系统的复杂度时频训练均衡器
公开(公告)号：US07212595B2
公开(公告)日：2007-05-01
申请号：US10408364
申请日：2003-04-08
申请人： Tai-Lai Tung , Mike Tu
发明人： Tai-Lai Tung , Mike Tu
IPC分类号： H04B1/10
CPC分类号： H04L25/03261 , H04L2025/03414 , H04L2025/03445 , H04L2025/03605
摘要： The present invention provides a system and method for implementing a new TEQ training approach that trains TEQ coefficients by exploiting both time-domain and frequency-domain information. An advantage of this technique is that it reduces memory usage due to the training process. In addition, the complexity of the training process is simplified, and the associated computational work is reduced. The reduction of memory usage and computational work in turn may lead to cost savings, power consumption savings and other advantages.
摘要翻译：本发明提供一种用于实现新的TEQ训练方法的系统和方法，其通过利用时域和频域信息来训练TEQ系数。该技术的优点在于它减少了由于训练过程而导致的内存使用。另外，简化了训练过程的复杂性，减少了相关的计算工作。内存使用和计算工作的减少又可能导致成本节省，节省功耗以及其他优点。

8. 发明授权

US08831079B2 Apparatus and method for detecting symbol rate 有权
标题翻译：用于检测符号率的装置和方法
公开(公告)号：US08831079B2
公开(公告)日：2014-09-09
申请号：US13565987
申请日：2012-08-03
申请人： Yi-Ying Liao , Tung-Sheng Lin , Tai-Lai Tung
发明人： Yi-Ying Liao , Tung-Sheng Lin , Tai-Lai Tung
IPC分类号： H04B3/46
CPC分类号： H04N5/4401 , H04L25/0262
摘要： A symbol rate detection apparatus includes an analog-to-digital converter (ADC), a coarse detection module, a mixer, a down-sampling module, and a fine detection module. The ADC converts an analog input signal to a digital input signal at an original sampling frequency. The coarse detection module estimates a carrier frequency offset and a coarse symbol rate according to the digital input signal. The mixer adjusts the frequency of the digital input signal according to the carrier frequency offset to generate a frequency-compensated signal. The fine detection module determines a fine symbol rate according to the frequency-compensated signal.
摘要翻译：符号率检测装置包括模数转换器（ADC），粗检测模块，混频器，下采样模块和精细检测模块。 ADC以原始采样频率将模拟输入信号转换为数字输入信号。粗略检测模块根据数字输入信号估计载波频率偏移和粗略符号率。混频器根据载波频率偏移调节数字输入信号的频率，以产生频率补偿信号。精细检测模块根据频率补偿信号确定精细符号率。

9. 发明申请

US20130279554A1 Apparatus and Method for Correcting Phase Error 有权
标题翻译：用于校正相位误差的装置和方法
公开(公告)号：US20130279554A1
公开(公告)日：2013-10-24
申请号：US13613207
申请日：2012-09-13
申请人： Kai-Wen Cheng , Yi-Ying Liao , Tung-Sheng Lin , Tai-Lai Tung
发明人： Kai-Wen Cheng , Yi-Ying Liao , Tung-Sheng Lin , Tai-Lai Tung
IPC分类号： H04L1/00
CPC分类号： H04L27/2272 , H04L2027/0055 , H04L2027/0067
摘要： An apparatus for correcting a phase error is provided. The apparatus includes an error estimating module and a correcting module. The error estimating module receives a phase-shift keying signal, and calculates a phase error according to the phase-shift keying signal, a plurality of known candidate signals and Bayesian estimation. The correcting module corrects the phase-shift keying signal according to the phase error.
摘要翻译：提供了一种用于校正相位误差的装置。该装置包括误差估计模块和校正模块。误差估计模块接收相移键控信号，并根据相移键控信号，多个已知候选信号和贝叶斯估计来计算相位误差。校正模块根据相位误差校正相移键控信号。

10. 发明授权

US08300741B2 Interference detector and method thereof 有权
标题翻译：干涉检测器及其方法
公开(公告)号：US08300741B2
公开(公告)日：2012-10-30
申请号：US12789244
申请日：2010-05-27
申请人： Kai-Wen Cheng , Ko-Yin Lai , Yi-Ying Liao , Tai-Lai Tung
发明人： Kai-Wen Cheng , Ko-Yin Lai , Yi-Ying Liao , Tai-Lai Tung
IPC分类号： H04L27/06
CPC分类号： H04L27/2647
摘要： An interference detector receives a data stream including predetermined symbols that include a first data and a second data, between which is a frequency offset. The interference detector includes a correlation apparatus that generates a first correlation result and a second correlation result according to the data stream; a power searching unit, coupled to the correlation apparatus, that generates a first maximum correlation result and a first neighboring power according to the first correlation result, and generates a second maximum correlation result and a second neighboring power according to the second correlation result; and a determining unit, coupled to the power searching unit, that generates a determination result according to the first maximum correlation result, the first neighboring power, the second maximum correlation result and the second neighboring power to indicate existence of interferences.
摘要翻译：干扰检测器接收包括包括第一数据和第二数据的预定符号的数据流，其间是频率偏移。所述干扰检测器包括：相关装置，其根据所述数据流生成第一相关结果和第二相关结果; 功率搜索单元，耦合到所述相关装置，根据所述第一相关结果产生第一最大相关结果和第一相邻功率，并且根据所述第二相关结果产生第二最大相关结果和第二相邻功率; 以及确定单元，耦合到所述功率搜索单元，其根据所述第一最大相关结果，所述第一相邻功率，所述第二最大相关结果和所述第二相邻功率生成用于指示干扰的存在的确定结果。

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