公开(公告)号：US09628112B2

公开(公告)日：2017-04-18

申请号：US15153086

申请日：2016-05-12

申请人： Xingkai Bao

发明人： Xingkai Bao

IPC分类号： H03M13/00 ,  G06F11/00 ,  H03M13/25 ,  H03M13/11

CPC分类号： H03M13/255 ,  H03M13/005 ,  H03M13/1105 ,  H03M13/116 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6393

摘要： A method and apparatus for encoding data and for decoding data using LDPC (low density parity check) codes includes providing a mother LDPC matrix of a particular size. A data payload of a smaller size is encoded by shortening the mother matrix to a smaller daughter matrix corresponding in size to the data payload and using the smaller daughter matrix for the encoding. The portions of the mother matrix to be removed in the shortening are derived from a control signal. The encoded data is transmitted with the control signal so that the receiver can derive the portions of the mother matrix to be removed to obtain the daughter matrix. At the receiver, a mother matrix is shortened to a daughter matrix and is then used to decode the data. The data at the encoder may be further reduced by puncturing to remove selected information bits and selected parity bits. The decoder inserts the selected information bits and parity bits when decoding the data.

公开(公告)号：US20160261287A1

公开(公告)日：2016-09-08

申请号：US15153086

申请日：2016-05-12

申请人： Xingkai Bao

发明人： Xingkai Bao

IPC分类号： H03M13/11 ,  H03M13/00

CPC分类号： H03M13/255 ,  H03M13/005 ,  H03M13/1105 ,  H03M13/116 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6393

摘要： A method and apparatus for encoding data and for decoding data using LDPC (low density parity check) codes includes providing a mother LDPC matrix of a particular size. A data payload of a smaller size is encoded by shortening the mother matrix to a smaller daughter matrix corresponding in size to the data payload and using the smaller daughter matrix for the encoding. The portions of the mother matrix to be removed in the shortening are derived from a control signal. The encoded data is transmitted with the control signal so that the receiver can derive the portions of the mother matrix to be removed to obtain the daughter matrix. At the receiver, a mother matrix is shortened to a daughter matrix and is then used to decode the data. The data at the encoder may be further reduced by puncturing to remove selected information bits and selected parity bits. The decoder inserts the selected information bits and parity bits when decoding the data.

摘要翻译： 使用LDPC（低密度奇偶校验）码对数据进行编码和解码数据的方法和装置包括提供特定尺寸的母LDPC矩阵。 较小尺寸的数据有效载荷通过将母矩阵缩小为与数据有效载荷大小相对应的较小子矩阵并使用较小的子矩阵进行编码来编码。 在缩短中要除去的母体矩阵的部分从控制信号导出。 编码数据与控制信号一起发送，使得接收机可以导出待去除的母矩阵的部分以获得子矩阵。 在接收机处，将母矩阵缩写为子矩阵，然后用于对数据进行解码。 编码器处的数据可以通过删截来进一步减少以去除所选择的信息比特和选择的奇偶校验位。 当解码数据时，解码器插入所选择的信息位和奇偶校验位。

公开(公告)号：US20160149590A1

公开(公告)日：2016-05-26

申请号：US14551669

申请日：2014-11-24

申请人： Xingkai Bao

发明人： Xingkai Bao

IPC分类号： H03M13/11 ,  H03M13/00

CPC分类号： H03M13/255 ,  H03M13/005 ,  H03M13/1105 ,  H03M13/116 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6393

摘要： A method and apparatus for encoding data and for decoding data using LDPC (low density parity check) codes includes providing a mother LDPC matrix of a particular size. A data payload of a smaller size is encoded by shortening the mother matrix to a smaller daughter matrix corresponding in size to the data payload and using the smaller daughter matrix for the encoding. The portions of the mother matrix to be removed in the shortening are derived from a control signal. The encoded data is transmitted with the control signal so that the receiver can derive the portions of the mother matrix to be removed to obtain the daughter matrix. At the receiver, a mother matrix is shortened to a daughter matrix and is then used to decode the data. The data at the encoder may be further reduced by puncturing to remove selected information bits and selected parity bits. The decoder inserts the selected information bits and parity bits when decoding the data.

公开(公告)号：US08542778B2

公开(公告)日：2013-09-24

申请号：US11258735

申请日：2005-10-26

申请人： Bruno Amizic ,  Tyler Brown

发明人： Bruno Amizic ,  Tyler Brown

IPC分类号： H04L27/14

CPC分类号： H04L7/033 ,  H04L27/06

摘要： A receiver timing error recovery loop expands the bandwidth of a received signal and determines the timing error based on the bandwidth expanded received signal.

摘要翻译： 接收机定时错误恢复循环扩展接收信号的带宽，并根据带宽扩展的接收信号确定定时误差。

公开(公告)号：US08487739B2

公开(公告)日：2013-07-16

申请号：US12341066

申请日：2008-12-22

申请人： Richard Lewis

发明人： Richard Lewis

IPC分类号： G05B19/00 ,  G05B23/00 ,  G06F7/00 ,  G06F7/04 ,  G06K19/00 ,  G08B29/00 ,  G08C19/00 ,  H04B1/00 ,  H04B3/00 ,  H04L9/14 ,  H04L9/32 ,  H04Q1/00

CPC分类号： H04N5/00

摘要： A signal received by a television over a communication medium is interrogated for the presence of a remotely transmitted ping. The television is operated in response to detection of the presence of the ping in the received signal. The television is locked against use in response to failing to detect the presence of the ping in the received signal.

摘要翻译： 通过通信介质通过电视接收的信号被询问是否存在远程发送的ping。 响应于在接收到的信号中检测到ping的存在来操作电视机。 响应于在接收到的信号中没有检测到ping的存在，电视被锁定以防止使用。

公开(公告)号：US08233575B2

公开(公告)日：2012-07-31

申请号：US10278350

申请日：2002-10-23

申请人： Michael D. Zoltowski

发明人： Michael D. Zoltowski

IPC分类号： H04L7/00

CPC分类号： H04L7/027 ,  H04L7/0029

摘要： An error between the rate fsym at which data are received and the rate fs at which the data are sampled in is determined by processing a received signal with a nonlinear operator, performing a DFT on the processed signal to produce a plurality of DFT bins each characterized by a respective frequency, determining a dominant spectral component k0 from at least two of the DFT bins whose frequencies are substantially close to the frequency of the dominant spectral component k0, and determining the data rate fsym from the dominant spectral component k0.

摘要翻译： 通过用非线性算子处理接收到的信号来确定接收数据的速率fsym和数据被采样的速率fs之间的误差，对处理的信号执行DFT以产生每个表征的多个DFT分组 通过相应的频率，从频率基本上接近主频谱分量k0的频率的DFT频带中的至少两个确定主频谱分量k0，以及从主频谱分量k0确定数据速率fsym。

公开(公告)号：US08144868B2

公开(公告)日：2012-03-27

申请号：US11342479

申请日：2006-01-30

申请人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

发明人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

IPC分类号： H04N7/167

CPC分类号： H04N7/1675 ,  H04N21/2347 ,  H04N21/23476 ,  H04N21/2362 ,  H04N21/26606 ,  H04N21/4345 ,  H04N21/4405 ,  H04N21/44055 ,  H04N21/835

摘要： At a transmitter, a program is encrypting according to a one program key, the program key is encrypted, and the encrypted program, the encrypted program key, and non-encrypted PSI data to a receiver are transmitted. At a receiver, the encrypted program, the encrypted program key, and the non-encrypted PSI data are received, the encrypted program key is decrypted, the encrypted program is located according to the non-encrypted PSI data, and the located encrypted program is decrypted according to decrypted program key.

摘要翻译： 在发射机上，程序根据一个程序密钥进行加密，程序密钥被加密，并且将加密的程序，加密的程序密钥和未加密的PSI数据传送到接收器。 在接收机处，接收到加密程序，加密程序密钥和未加密的PSI数据，加密的程序密钥被解密，加密的程序根据未加密的PSI数据被定位，并且所定位的加密程序是 根据解密的程序密钥解密。

公开(公告)号：US08144750B2

公开(公告)日：2012-03-27

申请号：US10815335

申请日：2004-04-01

申请人： Richard W. Citta ,  Peter Ho

发明人： Richard W. Citta ,  Peter Ho

IPC分类号： H04B1/00

CPC分类号： H04H20/67 ,  H03M13/251 ,  H04L25/03019 ,  H04L2025/03471 ,  H04L2025/03611 ,  H04L2025/03681

摘要： A receiver includes an equalizer and a decoder which decodes data from a signal. The signal is based upon an output of the equalizer. The receiver also includes an encoder, which re-encodes the decoded data, and an error generator, which generates an error vector based upon the signal and the encoded data and which weights the error vector according to a reliability that the decoder accurately decoded the data from the signal. A controller controls the equalizer in response to the weighted error vector.

摘要翻译： 接收机包括均衡器和解码器，其解码来自信号的数据。 该信号基于均衡器的输出。 接收机还包括对解码数据进行重新编码的编码器和误差发生器，该误差发生器根据信号和编码数据产生误差向量，并根据解码器对数据进行精确解码的可靠性对误差向量进行加权 从信号。 控制器响应加权误差向量控制均衡器。

公开(公告)号：US08054974B2

公开(公告)日：2011-11-08

申请号：US11342472

申请日：2006-01-30

申请人： Raymond C. Hauge ,  Richard Lewis

发明人： Raymond C. Hauge ,  Richard Lewis

IPC分类号： H04L9/08

CPC分类号： H04N7/1675 ,  G06F21/10 ,  G06F2221/2107 ,  H04L9/0662 ,  H04L9/0869 ,  H04L63/0428 ,  H04L2209/12 ,  H04L2209/605 ,  H04L2463/062 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/435 ,  H04N21/43853 ,  H04N21/47211

摘要： The use of keys to encrypt data in a transmitter and to decrypt encrypted data in a receiver are synchronized in accordance with a synchronization signal that opportunistically replaces a null packet in an MPEG transport stream. Additionally or alternatively, key related information is transmitted and/or received in place of a null packet in the MPEG transport stream and is used to encrypt and/or decrypt data transmitted and/or received in the MPEG transport stream.

摘要翻译： 根据机会地代替MPEG传输流中的零分组的同步信号，使用密钥来加密发射机中的数据和解密接收机中的加密数据。 附加地或替代地，代替MPEG传输流中的空分组来发送和/或接收密钥相关信息，并且用于加密和/或解密在MPEG传输流中传输和/或接收的数据。

公开(公告)号：US07936870B2

公开(公告)日：2011-05-03

申请号：US11342460

申请日：2006-01-30

申请人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

发明人： Raymond C. Hauge ,  Richard Lewis ,  Rudolf Turner

IPC分类号： H04L9/30

CPC分类号： H04N7/1675 ,  G06F21/10 ,  G06F2221/2107 ,  H04L9/0662 ,  H04L9/0869 ,  H04L63/0428 ,  H04L2209/12 ,  H04L2209/605 ,  H04L2463/062 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/23895 ,  H04N21/435 ,  H04N21/43853 ,  H04N21/47211

摘要： Data is encrypted according to a plurality of data keys. During the encryption of the data, the data keys are rotated according to a data key rotation pattern, and the rotation of the data keys includes repetitive use of the data keys during the encryption of the data. The encrypted data is transmitted to a receiver. Additionally or alternatively, encrypted data is received from a transmitter. The encrypted data is decrypted according to a plurality of data keys. During the decryption of the encrypted data, the data keys are rotated according to a data key rotation pattern, and the rotating of the data keys includes repetitive use of the data keys during the decryption of the encrypted data.

摘要翻译： 根据多个数据密钥对数据进行加密。 在数据加密期间，数据密钥根据数据密钥旋转模式旋转，并且数据密钥的旋转包括在数据加密期间重复使用数据密钥。 加密数据被发送到接收机。 附加地或替代地，从发射机接收加密的数据。 加密数据根据多个数据密钥进行解密。 在加密数据的解密期间，数据密钥根据数据密钥旋转模式旋转，并且数据密钥的旋转包括在加密数据的解密期间重复使用数据密钥。