公开(公告)号：US20100205515A1

公开(公告)日：2010-08-12

申请号：US12368182

申请日：2009-02-09

Applicant: Shun-An Yang ,  Che-Li Lin

Inventor： Shun-An Yang ,  Che-Li Lin

IPC: G06F11/07 ,  H03M13/09

CPC classification number: H03M13/3738 ,  H03M13/1165 ,  H03M13/15 ,  H03M13/152 ,  H03M13/2906 ,  H04H60/11 ,  H04L1/0057 ,  H04L1/0065 ,  H04L2001/0093

Abstract: A signal processing apparatus is provided. The signal processing apparatus includes an inner-code decoder, an outer-code decoder, and an error detection unit. The inner-code decoder decodes an input data stream to generate a first output data stream, wherein the input data stream is coded using a concatenated coding scheme including an outer coding and an inner coding. The outer-code decoder decodes the first output data stream to generate a second output data stream. The error detection unit performs an error detection upon the second output data stream to generate an error detection result. The decision logic sets error indication information of the second output data stream according to at least the error detection result.

Abstract translation: 提供一种信号处理装置。 信号处理装置包括内码解码器，外码解码器和错误检测单元。 内码解码器解码输入数据流以产生第一输出数据流，其中使用包括外部编码和内部编码的级联编码方案对输入数据流进行编码。 外码解码器解码第一输出数据流以产生第二输出数据流。 错误检测单元对第二输出数据流执行错误检测以产生错误检测结果。 决定逻辑至少根据错误检测结果来设定第二输出数据流的错误指示信息。

公开(公告)号：US20080175328A1

公开(公告)日：2008-07-24

申请号：US11625859

申请日：2007-01-23

Applicant: Che-Li Lin ,  Shun-An Yang

Inventor： Che-Li Lin ,  Shun-An Yang

IPC: H04L23/02 ,  H03K5/159

CPC classification number: H04L25/022 ,  H04L5/0048 ,  H04L25/0232 ,  H04L2025/03414

Abstract: A multi-path receiving system is provided. The multi-path receiving system includes a multi-path analyzer, a channel estimator and an equalizer. The multi-path analyzer analyzes a channel impulse response (CIR) of the multi-path channel from the received stream. The channel estimator calculates a channel estimation result from the received stream. The channel estimator comprises a frequency domain interpolation filter performing channel estimation. The frequency domain interpolation filter consumes an amount of power according to the CIR result output from the multi-path analyzer. The equalizer equalizes the received stream based on the channel estimation result.

Abstract translation: 提供多路径接收系统。 多路径接收系统包括多径分析器，信道估计器和均衡器。 多路径分析器从接收的流分析多路径信道的信道脉冲响应（CIR）。 信道估计器从接收的流计算信道估计结果。 信道估计器包括执行信道估计的频域内插滤波器。 频域插值滤波器根据多径分析仪输出的CIR结果消耗一定的功率。 均衡器基于信道估计结果对接收的流进行均衡。

公开(公告)号：US07961806B2

公开(公告)日：2011-06-14

申请号：US11625859

申请日：2007-01-23

Applicant: Che-Li Lin ,  Shun-An Yang

Inventor： Che-Li Lin ,  Shun-An Yang

IPC: H04L27/28 ,  H04L5/12

CPC classification number: H04L25/022 ,  H04L5/0048 ,  H04L25/0232 ,  H04L2025/03414

Abstract: A multi-path receiving system is provided. The multi-path receiving system includes a multi-path analyzer, a channel estimator and an equalizer. The multi-path analyzer analyzes a channel impulse response (CIR) of the multi-path channel from the received stream. The channel estimator calculates a channel estimation result from the received stream. The channel estimator comprises a frequency domain interpolation filter performing channel estimation. The frequency domain interpolation filter consumes an amount of power according to the CIR result output from the multi-path analyzer. The equalizer equalizes the received stream based on the channel estimation result.

Abstract translation: 提供多路径接收系统。 多路径接收系统包括多径分析器，信道估计器和均衡器。 多路径分析器从接收的流分析多路径信道的信道脉冲响应（CIR）。 信道估计器从接收的流计算信道估计结果。 信道估计器包括执行信道估计的频域内插滤波器。 频域插值滤波器根据多径分析仪输出的CIR结果消耗一定的功率。 均衡器基于信道估计结果对接收到的流进行均衡。

公开(公告)号：US08225166B2

公开(公告)日：2012-07-17

申请号：US12368182

申请日：2009-02-09

Applicant: Shun-An Yang ,  Che-Li Lin

Inventor： Shun-An Yang ,  Che-Li Lin

IPC: H03M13/00

CPC classification number: H03M13/3738 ,  H03M13/1165 ,  H03M13/15 ,  H03M13/152 ,  H03M13/2906 ,  H04H60/11 ,  H04L1/0057 ,  H04L1/0065 ,  H04L2001/0093

Abstract: A signal processing apparatus is provided. The signal processing apparatus includes an inner-code decoder, an outer-code decoder, and an error detection unit. The inner-code decoder decodes an input data stream to generate a first output data stream, wherein the input data stream is coded using a concatenated coding scheme including an outer coding and an inner coding. The outer-code decoder decodes the first output data stream to generate a second output data stream. The error detection unit performs an error detection upon the second output data stream to generate an error detection result. The decision logic sets error indication information of the second output data stream according to at least the error detection result.

Abstract translation: 提供一种信号处理装置。 信号处理装置包括内码解码器，外码解码器和错误检测单元。 内码解码器解码输入数据流以产生第一输出数据流，其中使用包括外部编码和内部编码的级联编码方案对输入数据流进行编码。 外码解码器解码第一输出数据流以产生第二输出数据流。 错误检测单元对第二输出数据流执行错误检测以产生错误检测结果。 决定逻辑至少根据错误检测结果来设定第二输出数据流的错误指示信息。

公开(公告)号：US08345782B2

公开(公告)日：2013-01-01

申请号：US12546813

申请日：2009-08-25

Applicant: Shun-An Yang

Inventor： Shun-An Yang

IPC: H04L27/28 ,  H04K1/10

CPC classification number: H04L25/0234 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2647

Abstract: The invention relates to DVB-T system, and in particular, to a channel estimation method for OFDM symbols. A plurality of symbols are received to generate a pilot response. A finite impulse response is generated from the pilot response. A coefficient table is selected based on the characteristics of the finite impulse response. The channel is estimated by interpolating the pilot response based on the coefficient table.

公开(公告)号：US07529319B2

公开(公告)日：2009-05-05

申请号：US11279576

申请日：2006-04-13

Applicant: Da-Wei Hsiung ,  Shun-An Yang

Inventor： Da-Wei Hsiung ,  Shun-An Yang

IPC: H04B1/38

CPC classification number: H04L27/2647 ,  G01S11/06

Abstract: A speed estimation method is provided, detecting relative speed of a transmitter and a receiver transmitting symbols by OFDM sub-carriers through a channel. First, a first correlation table is established, indicating conceptual relationships between the relative speed and the channel characteristic based on Doppler shift theory. Thereafter, channel characteristic caused by movement is estimated. The first correlation table is checked to determine the relative speed according to the estimated channel characteristic. The channel characteristic is a correlation value generated by auto-correlating received symbols with a delay factor. The first correlation table is established with a first delay factor, associating correlation values to a first plurality of presumed shift frequencies in view of the first delay factor. The first presumed shift frequencies scale from zero to a first maximum value, and the relative speed is proportional to the shift frequencies.

Abstract translation: 提供了一种速度估计方法，检测通过信道通过OFDM子载波发送符号的发射机和接收机的相对速度。 首先，建立第一个相关表，指出了基于多普勒频移理论的相对速度与信道特性之间的概念关系。 此后，估计由运动引起的通道特性。 检查第一相关表以根据估计的信道特性来确定相对速度。 信道特性是通过对具有延迟因子的接收符号进行自相关而产生的相关值。 第一相关表以第一延迟因子建立，鉴于第一延迟因子将相关值与第一多个假定移位频率相关联。 第一个推定的换档频率从零到第一个最大值，并且相对速度与换档频率成比例。

公开(公告)号：US08284873B2

公开(公告)日：2012-10-09

申请号：US12419312

申请日：2009-04-07

Applicant: Shun-An Yang

Inventor： Shun-An Yang

IPC: H03D1/00

CPC classification number: H04L1/0071 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/253 ,  H03M13/255 ,  H03M13/2732 ,  H04L1/0045 ,  H04L1/0065

Abstract: A wireless communication receiver includes a first signal processing block, a second signal processing block, and a de-interleaver. The first signal processing block is configured for receiving a wireless communication signal and processing the wireless communication signal to generate a first output. The de-interleaver is coupled between the first signal processing block and the second signal processing block, and includes a plurality of branches implemented for de-interleaving the first output to generate a second output. The de-interleaver starts outputting the second output to the second signal processing block for further signal processing before all buffers included in the branches are full, and informs the second signal processing block of data derived from one or more unfull buffers included in the branches.

Abstract translation: 无线通信接收机包括第一信号处理块，第二信号处理块和解交织器。 第一信号处理块被配置为用于接收无线通信信号并处理无线通信信号以产生第一输出。 解交织器耦合在第一信号处理块和第二信号处理块之间，并且包括实现用于解交织第一输出以产生第二输出的多个分支。 在分支中包括的所有缓冲器全部满载之前，解交织器开始将第二输出输出到第二信号处理块用于进一步的信号处理，并且向第二信号处理块通知从分支中包括的一个或多个非空闲缓冲器导出的数据。

公开(公告)号：US08059737B2

公开(公告)日：2011-11-15

申请号：US12144072

申请日：2008-06-23

Applicant: Shun-An Yang

Inventor： Shun-An Yang

IPC: H04L27/28

CPC classification number: H04L27/2647 ,  H04B7/04 ,  H04B7/0837 ,  H04B7/0877 ,  H04L1/0065 ,  H04L25/03006 ,  H04L2025/03414

Abstract: An OFDM receiver is provided. The OFDM receiver comprises a Fourier transform (FFT) module, a storage device, an equalizer, and a diversity combiner module. The Fourier transform module transforms a time-domain symbol into an OFDM symbol. The storage device stores OFDM symbols. When operated in a single chip mode, the storage device stores more OFDM symbols outputted from FFT module than operated in a diversity mode. The equalizer retrieves the OFDM symbols from the storage device or the FFT module, estimates the channel frequency response of a transmission channel, and equalizes the OFDM symbol according to the channel frequency response. When operated in the diversity mode, the diversity combiner module receives the OFDM symbols and an alignment signal from a diversity OFDM receiver.

Abstract translation: 提供OFDM接收机。 OFDM接收机包括傅里叶变换（FFT）模块，存储设备，均衡器和分集组合器模块。 傅立叶变换模块将时域符号变换为OFDM符号。 存储装置存储OFDM符号。 当以单芯片模式操作时，存储装置存储从FFT模块输出的比分集模式操作的更多的OFDM符号。 均衡器从存储装置或FFT模块检索OFDM符号，估计传输信道的信道频率响应，并根据信道频率响应均衡OFDM符号。 当在分集模式下操作时，分集组合器模块从分集OFDM接收机接收OFDM符号和对准信号。

公开(公告)号：US20070242761A1

公开(公告)日：2007-10-18

申请号：US11279916

申请日：2006-04-17

Applicant: Shun-An Yang

Inventor： Shun-An Yang

IPC: H04K1/10

CPC classification number: H04L25/0234 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2647

Abstract: The invention relates to DVB-T system, and in particular, to a channel estimation method for OFDM symbols. A plurality of symbols are received to generate a pilot response. A finite impulse response is generated from the pilot response. A coefficient table is selected based on the characteristics of the finite impulse response. The channel is estimated by interpolating the pilot response based on the coefficient table.

Abstract translation: 本发明涉及DVB-T系统，特别涉及OFDM符号的信道估计方法。 接收多个符号以产生导频响应。 从导频响应产生有限脉冲响应。 基于有限脉冲响应的特性选择系数表。 通过基于系数表内插导频响应来估计信道。

公开(公告)号：US20070147558A1

公开(公告)日：2007-06-28

申请号：US11306361

申请日：2005-12-25

Applicant: Da-Wei Hsiung ,  Shun-An Yang

Inventor： Da-Wei Hsiung ,  Shun-An Yang

IPC: H03D1/04

CPC classification number: H04H60/12

Abstract: An impulse noise remover includes: a storage module for storing a plurality of digital values derived from a received signal; a calculating module coupled to the storage module for calculating a first detection value according to a first subset of the plurality of digital values, and for calculating a second detection value according to a second subset of the plurality of digital values; a control unit coupled to the calculating module for identifying a target digital value associated with impulse noise according to the first and the second detection values; and a correcting unit coupled to the storage module and the control unit for replacing the target digital value with a predetermined value.

Abstract translation: 脉冲噪声去除器包括：存储模块，用于存储从接收信号导出的多个数字值; 耦合到所述存储模块的计算模块，用于根据所述多个数字值的第一子集计算第一检测值，并且用于根据所述多个数字值的第二子集计算第二检测值; 耦合到所述计算模块的控制单元，用于根据所述第一和第二检测值识别与脉冲噪声相关联的目标数字值; 以及校正单元，其耦合到所述存储模块和所述控制单元，用于以预定值替换所述目标数字值。