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1. 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。

2. 发明授权

US09025674B2 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装置
公开(公告)号：US09025674B2
公开(公告)日：2015-05-05
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 , H04L27/00 , H04L27/28 , H04L27/06 , H04L7/00 , H04N21/43 , H04N21/434 , H04N21/4385
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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明申请

US20100284498A1 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及相关方法
公开(公告)号：US20100284498A1
公开(公告)日：2010-11-11
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。

9. 发明授权

US09203677B2 Signal processing method and associated apparatus 有权
标题翻译：信号处理方法及相关装置
公开(公告)号：US09203677B2
公开(公告)日：2015-12-01
申请号：US13613182
申请日：2012-09-13
申请人： Chu-Hsin Chang , Kai-Wen Cheng , Yi-Ying Liao , Tung-Sheng Lin , Tai-Lai Tung
发明人： Chu-Hsin Chang , Kai-Wen Cheng , Yi-Ying Liao , Tung-Sheng Lin , Tai-Lai Tung
IPC分类号： H04L7/02 , H04L27/26 , H04L7/027 , H04L27/00
CPC分类号： H04L27/2666 , H04L7/027 , H04L2027/0026
摘要： A signal processing apparatus for receiving a spectral line of an original signal includes a starting point determining module, a searching module and a symbol rate determining module. The starting point determining module finds a maximum energy in the spectral line and determines at least one search starting point according to the maximum energy. From the at least one search starting point, the searching module searches along the spectral line towards a region with a lower energy for at least one minimum energy satisfying a predetermined condition. The symbol rate determining module determines a symbol rate of the original signal according to the at least one minimum energy.
摘要翻译：用于接收原始信号的谱线的信号处理装置包括起始点确定模块，搜索模块和符号率确定模块。起始点确定模块在频谱线中找到最大能量，并根据最大能量确定至少一个搜索起始点。从至少一个搜索起点，搜索模块沿着谱线搜索具有较低能量的区域，以满足满足预定条件的至少一个最小能量。符号率确定模块根据至少一个最小能量确定原始信号的符号率。

10. 发明授权

US08804877B2 Apparatus and method for correcting phase error 有权
标题翻译：校正相位误差的装置和方法
公开(公告)号：US08804877B2
公开(公告)日：2014-08-12
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： H03D3/22
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。

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