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1. 发明授权

US06842491B2 Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder 有权
标题翻译：多通道并行/串行级联卷积码和网格编码调制编码器/解码器
公开(公告)号：US06842491B2
公开(公告)日：2005-01-11
申请号：US10137336
申请日：2002-05-03
申请人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
发明人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
IPC分类号： H04L1/00 , H04L27/26 , H04L23/02 , H04L5/12
CPC分类号： H04L1/006 , H04L1/0003 , H04L1/0013 , H04L1/005 , H04L1/0059 , H04L1/0066 , H04L27/2602
摘要： A method and apparatus to transmit turbo-encoded data in a multitone channel assigns the original data and selected parity bits across multitone subchannels allowing transmission of an entire turbo-encoded block withing one or few symbol time frame. Parity bits are selected by a procedure using data derived by optimization using simulation of a single-channel system. The optimization determines, for a specified bit error rate, for each possible number of information bits per symbol, the code rate corresponding to the lowest signal-to-noise ratio. Alternatively, in the simulation non-identical integer values may be applied to the channels to approximate non-integer values of code rate and information bits-per-channel in the aggregate. The optimized data are used to determine an optimal code rate and SNR for each channel. In assigning the respective bits to the channels, the number of parity bits in each channel are shared
摘要翻译：在多音频信道中发送turbo编码数据的方法和装置在多音调子信道上分配原始数据和选择的奇偶校验位，从而允许以一个或几个符号时间帧传输整个turbo编码块。通过使用通过使用单通道系统的模拟的优化导出的数据的过程来选择奇偶校验位。对于指定的误码率，优化对于每个符号的每个可能数量的信息比特来确定对应于最低信噪比的码率。或者，在模拟中，可以将不均匀的整数值应用于信道以近似汇总中的码率的非整数值和每信道的信息比特。优化的数据用于确定每个通道的最佳码率和SNR。在将各个比特分配给信道时，每个信道中的奇偶校验位的数量被共享

2. 发明授权

US06731696B1 Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder 有权
标题翻译：多通道并行/串行级联卷积码和网格编码调制编码器/解码器
公开(公告)号：US06731696B1
公开(公告)日：2004-05-04
申请号：US09574255
申请日：2000-05-19
申请人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
发明人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
IPC分类号： H04L516
CPC分类号： H04L1/006 , H04L1/0003 , H04L1/0013 , H04L1/005 , H04L1/0059 , H04L1/0066 , H04L27/2602
摘要： A method and apparatus to transmit turbo-encoded data in a multitone channel assigns the original data and selected parity bits across multitone subchannels allowing transmission of an entire turbo-encoded block withing one or few symbol time frame. Parity bits are selected by a procedure using data derived by optimization using simulation of a single-channel system. The optimization determines, for a specified bit error rate, for each possible number of information bits per symbol, the code rate corresponding to the lowest signal-to-noise ratio. Alternatively, in the simulation non-identical integer values may be applied to the channels to approximate non-integer values of code rate and information bits-per-channel in the aggregate. The optimized data are used to determine an optimal code rate and SNR for each channel. In assigning the respective bits to the channels, the number of parity bits in each channel are shared.
摘要翻译：在多音频信道中发送turbo编码数据的方法和装置在多音调子信道上分配原始数据和选择的奇偶校验位，从而允许以一个或几个符号时间帧传输整个turbo编码块。通过使用通过使用单通道系统的模拟的优化导出的数据的过程来选择奇偶校验位。对于指定的误码率，优化对于每个符号的每个可能数量的信息比特来确定对应于最低信噪比的码率。或者，在模拟中，可以将不均匀的整数值应用于信道以近似汇总中的码率的非整数值和每信道的信息比特。优化的数据用于确定每个通道的最佳码率和SNR。在将各个比特分配给信道时，每个信道中的奇偶校验位的数量被共享。

3. 发明授权

US06330277B1 Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder 有权
标题翻译：多通道并行/串行级联卷积码和网格编码调制编码器/解码器
公开(公告)号：US06330277B1
公开(公告)日：2001-12-11
申请号：US09861625
申请日：2001-05-22
申请人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
发明人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
IPC分类号： H04B138
CPC分类号： H04L1/006 , H04L1/0003 , H04L1/0013 , H04L1/005 , H04L1/0059 , H04L1/0066 , H04L27/2602
摘要： A method and apparatus to transmit turbo-encoded data in a multitone channel assigns the original data and selected parity bits across multitone subchannels allowing transmission of an entire turbo-encoded block withing one or few symbol time frame. Parity bits are selected by a procedure using data derived by optimization using simulation of a single-channel system The optimization determines, for a specified bit error rate, for each possible number of information bits per symbol, the code rate corresponding to the lowest signal-to-noise ratio. Alternatively, in the simulation non-identical integer values may be applied to the channels to approximate non-integer values of code rate and information bits-per-channel in the aggregate. The optimized data are used to determine an optimal code rate and SNR for each channel. In assigning the respective bits to the channels, the number of parity bits in each channel are shared.
摘要翻译：在多音频信道中发送turbo编码数据的方法和装置在多音调子信道上分配原始数据和选择的奇偶校验位，从而允许以一个或几个符号时间帧传输整个turbo编码块。通过使用通过使用单通道系统的仿真优化得到的数据的程序来选择奇偶位。优化对于指定的误码率，对于每个符号的每个可能数量的信息比特来确定对应于最低信号 - 信噪比。或者，在模拟中，可以将不均匀的整数值应用于信道以近似汇总中的码率的非整数值和每信道的信息比特。优化的数据用于确定每个通道的最佳码率和SNR。在将各个比特分配给信道时，每个信道中的奇偶校验位的数量被共享。

4. 发明授权

US5828696A Timing recovery in a network-synchronized modem 失效
公开(公告)号：US5828696A
公开(公告)日：1998-10-27
申请号：US413678
申请日：1995-03-30
申请人： Ehud Alexander Gelblum , James Emery Mazo
发明人： Ehud Alexander Gelblum , James Emery Mazo
IPC分类号： H04L27/00 , H04J3/06 , H04L7/00 , H04L7/04 , H04L7/08 , H04L25/49 , H04B1/38 , H04L5/16
CPC分类号： H04L25/4927 , H04J3/0602 , H04L7/046 , H04L7/08
摘要： A timing technique for a Quantization-Level-Sampling (QLS) modem puts timing information in a downstream pulsed signal transmitted from the public switched telephone network (PSTN) to the QLS modem. In response to this timing information, the QLS modem synchronizes to the network sampling clock in the PSTN. In particular, the pulsed signal includes data-bearing samples, which were provided by a far-end QLS modem, and at least one non-user-data-bearing (NUDB) sample in which the level of this NUDB sample periodically alternates. The QLS modem extracts timing information from this periodic alternating signal level to synchronize the QLS modem to the network sampling clock.

5. 发明授权

US06396871B1 Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder 有权
标题翻译：多通道并行/串行级联卷积码和网格编码调制编码器/解码器
公开(公告)号：US06396871B1
公开(公告)日：2002-05-28
申请号：US09572857
申请日：2000-05-18
申请人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
发明人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
IPC分类号： H04B138
CPC分类号： H04L1/006 , H04L1/0003 , H04L1/0013 , H04L1/005 , H04L1/0059 , H04L1/0066 , H04L27/2602
摘要： A method and apparatus to transmit turbo-encoded data in a multitone channel assigns the original data and selected parity bits across multitone subchannels allowing transmission of an entire turbo-encoded block within one or few symbol time frame. Parity bits are selected by a procedure using data derived by optimization using simulation of a single-channel system. The optimization determines, for a specified bit error rate, for each possible number of information bits per symbol, the code rate corresponding to the lowest signal-to-noise ratio. Alternatively, in the simulation non-identical integer values may be applied to the channels to approximate non-integer values of code rate and information bits-per-channel in the aggregate. The optimized data are used to determine an optimal code rate and SNR for each channel. In assigning the respective bits to the channels, the number of parity bits in each channel are shared
摘要翻译：用于在多音频信道中发送turbo编码数据的方法和装置分配原始数据和跨多音频子信道的所选奇偶校验位，允许在一个或几个符号时间帧内传输整个turbo编码块。通过使用通过使用单通道系统的模拟的优化导出的数据的过程来选择奇偶校验位。对于指定的误码率，优化对于每个符号的每个可能数量的信息比特来确定对应于最低信噪比的码率。或者，在模拟中，可以将不均匀的整数值应用于信道以近似汇总中的码率的非整数值和每信道的信息比特。优化的数据用于确定每个通道的最佳码率和SNR。在将各个比特分配给信道时，每个信道中的奇偶校验位的数量被共享

6. 发明授权

US6094452A Timing recovery in a network-synchronized modem 失效
标题翻译：网络同步调制解调器中的定时恢复
公开(公告)号：US6094452A
公开(公告)日：2000-07-25
申请号：US105312
申请日：1998-06-25
申请人： Ehud Alexander Gelblum , James Emery Mazo
发明人： Ehud Alexander Gelblum , James Emery Mazo
IPC分类号： H04L27/00 , H04J3/06 , H04L7/00 , H04L7/04 , H04L7/08 , H04L25/49 , H04B1/56
CPC分类号： H04L25/4927 , H04J3/0602 , H04L7/046 , H04L7/08
摘要： A timing technique for a Quantization-Level-Sampling (QLS) modem puts timing information in a downstream pulsed signal transmitted from the public switched telephone network (PSTN) to the QLS modem. In response to this timing information, the QLS modem synchronizes to the network sampling clock in the PSTN. In particular, the pulsed signal includes data-bearing samples, which were provided by a far-end QLS modem, and at least one non-user-data-bearing (NUDB) sample in which the level of this NUDB sample periodically alternates. The QLS modem extracts timing information from this periodic alternating signal level to synchronize the QLS modem to the network sampling clock.
摘要翻译：量化级采样（QLS）调制解调器的定时技术将定时信息放在从公共交换电话网（PSTN）发送到QLS调制解调器的下行脉冲信号中。响应于该定时信息，QLS调制解调器与PSTN中的网络采样时钟同步。特别地，脉冲信号包括由远端QLS调制解调器提供的数据承载样本和至少一个非用户数据承载（NUDB）样本，其中该NUDB样本的级别周期性地交替。 QLS调制解调器从该周期性交替信号电平提取定时信息，以使QLS调制解调器与网络采样时钟同步。

7. 发明授权

US6088387A Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder 失效
标题翻译：多通道并行/串行级联卷积码和网格编码调制编码器/解码器
公开(公告)号：US6088387A
公开(公告)日：2000-07-11
申请号：US1342
申请日：1997-12-31
申请人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
发明人： Ehud Alexander Gelblum , Hamid R. Sadjadpour
IPC分类号： H04L1/00 , H04L27/26 , H04B1/38
CPC分类号： H04L1/006 , H04L1/0003 , H04L1/0013 , H04L1/005 , H04L1/0059 , H04L1/0066 , H04L27/2602
摘要： A method and apparatus to transmit turbo-encoded data in a multitone channel assigns the original data and selected parity bits across multitone subchannels allowing transmission of an entire turbo-encoded block withing one or few symbol time frame. Parity bits are selected by a procedure using data derived by optimization using simulation of a single-channel system. The optimization determines, for a specified bit error rate, for each possible number of information bits per symbol, the code rate corresponding to the lowest signal-to-noise ratio. Alternatively, in the simulation non-identical integer values may be applied to the channels to approximate non-integer values of code rate and information bits-per-channel in the aggregate. The optimized data are used to determine an optimal code rate and SNR for each channel. In assigning the respective bits to the channels, the number of parity bits in each channel are shared.
摘要翻译：在多音频信道中发送turbo编码数据的方法和装置在多音调子信道上分配原始数据和选择的奇偶校验位，从而允许以一个或几个符号时间帧传输整个turbo编码块。通过使用通过使用单通道系统的模拟的优化导出的数据的过程来选择奇偶校验位。对于指定的误码率，优化对于每个符号的每个可能数量的信息比特来确定对应于最低信噪比的码率。或者，在模拟中，可以将不均匀的整数值应用于信道以近似汇总中的码率的非整数值和每信道的信息比特。优化的数据用于确定每个通道的最佳码率和SNR。在将各个比特分配给信道时，每个信道中的奇偶校验位的数量被共享。

8. 发明授权

US5960041A Method and apparatus for generating high rate codes for recording information on a magnetic medium 失效
标题翻译：用于产生用于在磁性介质上记录信息的高速率代码的方法和装置
公开(公告)号：US5960041A
公开(公告)日：1999-09-28
申请号：US531805
申请日：1995-09-21
申请人： Arthur Robert Calderbank , Ehud Alexander Gelblum
发明人： Arthur Robert Calderbank , Ehud Alexander Gelblum
IPC分类号： G11B20/14 , H03M5/14 , H03M7/40 , H04L25/34 , H04L25/49
CPC分类号： H03M5/145 , G11B20/1426
摘要： Method and apparatus for encoding digital information to be recorded on a magnetic medium is disclosed. The invention provides for receiving a sequence of (2.sup.m n+d) user bits, mapping the sequence of user bits to 2.sup.m dc-free codewords, and recording the 2.sup.m dc-free codewords on a magnetic medium. A modulation coder, which includes a memory containing multiple non-intersecting subconstellations of dc-free codewords, performs the mapping in a non-equiprobable manner such that a particular codeword from a larger subconstellation is more likely to be used than a particular codeword from a smaller constellation. Less desirable codewords, such as those containing relatively long strings of bits having the same value, are assigned to the smaller subconstellations, thereby lessening the likelihood of loss of timing and gain parameters in the system, as well as maximizing the transmission rate and efficient use of the set of possible dc-free sequences of a given length.
摘要翻译：公开了用于编码要记录在磁介质上的数字信息的方法和装置。本发明提供接收（2mn + d）用户比特的序列，将用户比特序列映射到2m无直流的码字，以及在磁介质上记录2m无直流的码字。一种调制编码器，其包括一个包含无直流无码字符的多个不相交的子结构的存储器，以不均等的方式执行映射，使得来自较大子星座的特定码字比来自一个较小的星座。较不理想的码字（例如包含具有相同值的相对较长的比特串的那些）被分配给较小的子结构，从而减少系统中定时和增益参数的丢失的可能性，以及最大化传输速率和有效使用的给定长度的可能无dc序列的集合。

9. 发明授权

US5757849A Timing recovery in a network-synchronized modem 失效
标题翻译：网络同步调制解调器中的定时恢复
公开(公告)号：US5757849A
公开(公告)日：1998-05-26
申请号：US413675
申请日：1995-03-30
申请人： Ehud Alexander Gelblum , James Emery Mazo
发明人： Ehud Alexander Gelblum , James Emery Mazo
IPC分类号： H04B3/23 , H03H21/00 , H04B3/10 , H04J3/06 , H04L7/04 , H04L7/08 , H04L7/10 , H04L25/03 , H04L25/49 , H04L27/00 , H04B1/22
CPC分类号： H04L7/08 , H04J3/0602 , H04L25/4927 , H04L7/046
摘要： A timing technique for a Quantization-Level-Sampling (QLS) modem puts timing information in a downstream pulsed signal transmitted from the public switched telephone network (PSTN) to the QLS modem. In response to this timing information, the QLS modem synchronizes to the network sampling clock of the PSTN. In particular, the pulsed signal includes data-bearing samples, which were provided by a far-end QLS modem, and at least one non-user-data-bearing (NUDB) sample in which the level of this NUDB sample periodically alternates. The QLS modem extracts timing information from this periodic alternating signal level to synchronize the QLS modem to the network sampling clock.
摘要翻译：量化级采样（QLS）调制解调器的定时技术将定时信息放在从公共交换电话网（PSTN）发送到QLS调制解调器的下行脉冲信号中。响应于该定时信息，QLS调制解调器与PSTN的网络采样时钟同步。特别地，脉冲信号包括由远端QLS调制解调器提供的数据承载样本和至少一个非用户数据承载（NUDB）样本，其中该NUDB样本的级别周期性地交替。 QLS调制解调器从该周期性交替信号电平提取定时信息，以将QLS调制解调器与网络采样时钟同步。

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