公开(公告)号：US08931026B2

公开(公告)日：2015-01-06

申请号：US13900821

申请日：2013-05-23

Applicant: MStar Semiconductor, Inc.

Inventor： Kai-Wen Cheng ,  Yi-Ying Liao ,  Tung-Sheng Lin ,  Tai-Lai Tung

IPC: H04N7/173 ,  H04N21/61 ,  H04N7/20 ,  H04L27/00

CPC classification number: H04N21/6143 ,  H04L27/00 ,  H04L27/0006 ,  H04L27/066 ,  H04N7/20 ,  H04N21/4382

Abstract: An apparatus for detecting spectrum inversion includes a different correlator and a determining module. The differential correlator performs an odd-order differential correlation on an input signal and a known signal to generate a differential correlation result. When the input signal is determined as corresponding to a target signal of the known signal, the determining module detects spectrum inversion in the input signal according to the phase of the differential correlation result.

Abstract translation: 用于检测频谱反转的装置包括不同的相关器和确定模块。 差分相关器对输入信号和已知信号执行奇数阶微分相关，以产生微分相关结果。 当确定输入信号对应于已知信号的目标信号时，确定模块根据微分相关结果的相位来检测输入信号中的频谱反转。

公开(公告)号：US20140075263A1

公开(公告)日：2014-03-13

申请号：US14024783

申请日：2013-09-12

Applicant: MStar Semiconductor, Inc.

Inventor： Yu-Hsien Ku ,  Tung-Sheng Lin ,  Yi-Ying Liao

IPC: H03M13/29

CPC classification number: H03M13/2906 ,  H03M13/1128 ,  H03M13/1165 ,  H03M13/15 ,  H03M13/152 ,  H03M13/255 ,  H03M13/29 ,  H03M13/6502 ,  H03M13/6552

Abstract: An error correction apparatus for a digital signal received by a signal reception terminal includes two error correction modules. The first error correction module performs first error correction on an input signal to generate an intermediate signal satisfying a termination condition. The second error correction module receives and selectively performs second error correction on the intermediate signal to generate a corrected signal. The termination condition is associated with a maximum error correction capability of the second error correction.

Abstract translation: 用于由信号接收终端接收的数字信号的纠错装置包括两个误差校正模块。 第一纠错模块对输入信号执行第一纠错，以产生满足终止条件的中间信号。 第二纠错模块接收并选择性地对中间信号执行第二纠错以产生校正信号。 终止条件与第二纠错的最大纠错能力相关联。

公开(公告)号：US09432058B2

公开(公告)日：2016-08-30

申请号：US14024783

申请日：2013-09-12

Applicant: MStar Semiconductor, Inc.

Inventor： Yu-Hsien Ku ,  Tung-Sheng Lin ,  Yi-Ying Liao

IPC: H03M13/29 ,  H03M13/11 ,  H03M13/00 ,  H03M13/15 ,  H03M13/25

CPC classification number: H03M13/2906 ,  H03M13/1128 ,  H03M13/1165 ,  H03M13/15 ,  H03M13/152 ,  H03M13/255 ,  H03M13/29 ,  H03M13/6502 ,  H03M13/6552

Abstract: An error correction apparatus for a digital signal received by a signal reception terminal includes two error correction modules. The first error correction module performs first error correction on an input signal to generate an intermediate signal satisfying a termination condition. The second error correction module receives and selectively performs second error correction on the intermediate signal to generate a corrected signal. The termination condition is associated with a maximum error correction capability of the second error correction.

Abstract translation: 用于由信号接收终端接收的数字信号的纠错装置包括两个误差校正模块。 第一纠错模块对输入信号执行第一纠错，以产生满足终止条件的中间信号。 第二纠错模块接收并选择性地对中间信号执行第二纠错以产生校正信号。 终止条件与第二纠错的最大纠错能力相关联。

公开(公告)号：US09042494B2

公开(公告)日：2015-05-26

申请号：US14200664

申请日：2014-03-07

Applicant: MStar Semiconductor, Inc.

Inventor： Ching-Fu Lan ,  Hsin-Chuan Kuo ,  Tung-Sheng Lin ,  Tai-Lai Tung

IPC: H03D1/00 ,  H04L27/06 ,  H04L27/26 ,  H04L25/06 ,  H04L27/38

CPC classification number: H04L27/2656 ,  H04L25/067 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/3881

Abstract: A digital broadcasting receiving system is provided. A receiving module receives an M number of symbols each carrying an N number of subcarriers of a control signal. A converting module performs FFT on respective kth subcarriers of an ith symbol and an (i+1)th symbol to generate an (i, k)th converted value and an (i+1, k)th converted value. A demodulating module performs differential demodulation on the (i, k)th and (i+1, k)th converted values to generate an (i, k)th demodulation value. A combining module soft-combines the (i, 1)th demodulation value through the (i, N)th demodulation value to generate an ith prediction value corresponding to the ith symbol. A determining module identifies a synchronization segment in the control signal according to the 1st prediction value to the (M−1)th prediction value.

Abstract translation: 提供数字广播接收系统。 接收模块接收M个符号，每个符号携带N个控制信号的子载波。 A转换模块对第i个符号和第（i + 1）个符号的第k个子载波执行FFT，以产生（i，k）转换值和第（i + 1，k）个转换值。 解调模块对（i，k）和（i + 1，k）个转换值执行差分解调，以产生（i，k）解调值。 组合模块通过（i，N）解调值对（i，1）解调值进行软组合，生成与第i个符号对应的第i个预测值。 确定模块根据第一预测值到第（M-1）个预测值来识别控制信号中的同步段。

公开(公告)号：US20140219403A1

公开(公告)日：2014-08-07

申请号：US14174007

申请日：2014-02-06

Applicant: MSTAR SEMICONDUCTOR, INC.

Inventor： Chun-Chi Su ,  Ching-Fu Lan ,  Chun-Chieh Wang ,  Tai-Lai Tung ,  Tung-Sheng Lin

IPC: H04L25/02

CPC classification number: H04L25/0204 ,  H04L25/0232

Abstract: An apparatus for estimating channel effects is provided. A receiving module receives first data and first reference information arriving in a first time period, second data and second reference data arriving in a second time period, and third data and third reference data arriving in a third time period. An estimation module estimates channel effects corresponding to the first and third data, and the first, second and third reference data, respectively. A coefficient calculation module performs a Wiener filter coefficient calculation on the channel effects corresponding to the first, second and third reference data to generate a set of time-domain interpolation coefficients. An interpolation module interpolates the channel effects corresponding to the first third data according to the set of time-domain interpolation coefficients to generate a channel effect corresponding to the second data.

Abstract translation: 提供了一种用于估计信道效应的装置。 接收模块接收在第一时间段到达的第一数据和第一参考信息，在第二时间段到达的第二数据和第二参考数据，以及在第三时间段到达的第三数据和第三参考数据。 估计模块分别估计与第一和第三数据以及第一，第二和第三参考数据相对应的信道效应。 系数计算模块对与第一，第二和第三参考数据相对应的信道效应执行维纳滤波系数计算，以生成一组时域插值系数。 内插模块根据时域插值系数的集合内插与第一第三数据对应的信道效应，以产生与第二数据相对应的信道效应。