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    Multilevel channel coding in ADSL
    1.
    发明授权
    Multilevel channel coding in ADSL 有权
    ADSL中的多级信道编码

    公开(公告)号：US07457368B2

    公开(公告)日：2008-11-25

    申请号：US10860286

    申请日：2004-06-04

    申请人： Patrick Duvaut ,  Ehud Langberg ,  Julien Pons ,  William Scholtz

    发明人： Patrick Duvaut ,  Ehud Langberg ,  Julien Pons ,  William Scholtz

    IPC分类号： H04L5/12

    CPC分类号： H04L1/006 ,  H03M13/255 ,  H03M13/256 ,  H03M13/635 ,  H04L1/0041 ,  H04L1/0066 ,  H04L1/007

    摘要： Disclosed herein are various techniques for multilevel channel coding. For a given binary word comprising a plurality of bits, the least-significant bit may be encoded by a boosted coding technique, such as turbo channel coding or low density parity check (LDPC) channel coding. A subset of the remaining bits of the binary word may be encoded using trellis coded modulation (TCM) coding. The results of the boosted channel coding and the TCM coding may be mapped to one or more symbols. The one or more symbols then may be transmitted to a receiver using transmission techniques well known to those skilled in the art. The present invention finds particular benefit in digital subscriber line (DSL)-based systems in accord with the ITU G.922.1 Recommendation and similar standards.

    摘要翻译： 这里公开了用于多电平信道编码的各种技术。 对于包括多个位的给定二进制字，最低有效位可以通过诸如turbo信道编码或低密度奇偶校验（LDPC）信道编码的增强编码技术来编码。 可以使用网格编码调制（TCM）编码对二进制字的剩余位的子集进行编码。 增强的信道编码和TCM编码的结果可以映射到一个或多个符号。 然后可以使用本领域技术人员公知的传输技术将一个或多个符号发送到接收机。 本发明在符合ITU G.922.1建议书和类似标准的基于数字用户线路（DSL）的系统中具有特别的益处。

    Technique for improving multiple-channel multi-tone transmissions
    4.
    发明申请
    Technique for improving multiple-channel multi-tone transmissions 失效
    改善多声道多音调传输的技术

    公开(公告)号：US20050013379A1

    公开(公告)日：2005-01-20

    申请号：US10874329

    申请日：2004-06-24

    申请人： Patrick Duvaut ,  Ehud Langberg ,  William Scholtz

    发明人： Patrick Duvaut ,  Ehud Langberg ,  William Scholtz

    IPC分类号： H04L27/26 ,  H04L27/00

    CPC分类号： H04L1/0656 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647

    摘要： A technique for improving multiple-channel multi-tone transmissions is disclosed. According to one particular embodiment, a method for transmitting data over at least two bonded channels is provided, wherein each of the at least two bonded channels comprises a plurality of tones. The method may comprise: transmitting a first symbol stream over a first tone in a first bonded channel and over a second tone in a second bonded channel, wherein the first tone is bonded to the second tone, and the transmissions over the first tone and the second tone are substantially in parallel; transmitting a second symbol stream over a third tone in the first bonded channel; and transmitting a third symbol stream over a fourth tone in the second bonded channel, wherein the third tone is bonded to the fourth tone, and the transmissions of the second symbol stream and the third symbol stream are substantially in parallel.

    摘要翻译： 公开了一种用于改善多声道多音调传输的技术。 根据一个特定实施例，提供了一种用于在至少两个绑定信道上传输数据的方法，其中所述至少两个绑定信道中的每一个包括多个音调。 该方法可以包括：通过第一绑定信道中的第一音调和第二绑定信道中的第二音调发送第一符号流，其中第一音调被绑定到第二音调，并且通过第一音调和 第二音基本上是平行的; 在所述第一绑定信道中通过第三音调发送第二符号流; 以及在所述第二绑定信道中通过第四音调发送第三符号流，其中所述第三音调被绑定到所述第四音调，并且所述第二符号流和所述第三符号流的传输基本上是并行的。

    Technique for improving multiple-channel multi-tone transmissions
    5.
    发明授权
    Technique for improving multiple-channel multi-tone transmissions 失效
    改善多声道多音调传输的技术

    公开(公告)号：US07653138B2

    公开(公告)日：2010-01-26

    申请号：US10874329

    申请日：2004-06-24

    申请人： Patrick Duvaut ,  Ehud Langberg ,  William Scholtz

    发明人： Patrick Duvaut ,  Ehud Langberg ,  William Scholtz

    IPC分类号： H04L27/00

    CPC分类号： H04L1/0656 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647

    摘要： A technique for improving multiple-channel multi-tone transmissions is disclosed. According to one particular embodiment, a method for transmitting data over at least two bonded channels is provided, wherein each of the at least two bonded channels comprises a plurality of tones. The method may comprise: transmitting a first symbol stream over a first tone in a first bonded channel and over a second tone in a second bonded channel, wherein the first tone is bonded to the second tone, and the transmissions over the first tone and the second tone are substantially in parallel; transmitting a second symbol stream over a third tone in the first bonded channel; and transmitting a third symbol stream over a fourth tone in the second bonded channel, wherein the third tone is bonded to the fourth tone, and the transmissions of the second symbol stream and the third symbol stream are substantially in parallel.

    摘要翻译： 公开了一种用于改善多声道多音调传输的技术。 根据一个特定实施例，提供了一种用于在至少两个绑定信道上传输数据的方法，其中所述至少两个绑定信道中的每一个包括多个音调。 该方法可以包括：通过第一绑定信道中的第一音调和第二绑定信道中的第二音调发送第一符号流，其中第一音调被绑定到第二音调，并且通过第一音调和 第二音基本上是平行的; 在所述第一绑定信道中通过第三音调发送第二符号流; 以及在所述第二绑定信道中通过第四音调发送第三符号流，其中所述第三音调被绑定到所述第四音调，并且所述第二符号流和所述第三符号流的传输基本上是并行的。

    Method and system for preventing data loss in a real-time computer system
    8.
    发明授权
    Method and system for preventing data loss in a real-time computer system 失效
    用于防止实时计算机系统中的数据丢失的方法和系统

    公开(公告)号：US08228951B2

    公开(公告)日：2012-07-24

    申请号：US12427698

    申请日：2009-04-21

    申请人： William Scholtz ,  Ben Chan ,  Ehud Langberg ,  Shareq Rahman ,  Xy Chen ,  James Zhang

    发明人： William Scholtz ,  Ben Chan ,  Ehud Langberg ,  Shareq Rahman ,  Xy Chen ,  James Zhang

    IPC分类号： H04J1/02 ,  H04M11/00

    CPC分类号： H04M3/4281 ,  H04M3/02 ,  H04M3/18 ,  H04M3/42365 ,  H04M7/006 ,  H04M2203/156

    摘要： A method and system are provided for preventing data loss in a VoIP system. In particular, during a VoIP call, it is determined whether incoming ringing on a POTS line causes an unacceptable level of signal loss or errors. If so, for subsequent VoIP calls, the CO handling calls to the POTS line is instructed to either answer each call with a busy signal or automatically forward calls to the POTS line to the VoIP line or other selected telephone. Calling returns to normal upon ending of the VoIP call. In this manner, incoming ringing on the POTS line does not result in call dropping or lengthy retraining processes.

    摘要翻译： 提供了一种防止VoIP系统中的数据丢失的方法和系统。 特别地，在VoIP呼叫期间，确定POTS线上的输入振铃是否导致不可接受的信号丢失或错误的水平。 如果是这样，对于随后的VoIP呼叫，指示对POTS线的CO处理呼叫以忙信号来应答每个呼叫，或者自动将呼叫转移到VoIP线路或其他所选电话的POTS线路。 呼叫结束时呼叫恢复正常。 以这种方式，POTS线路上的呼入不会导致呼叫丢失或冗长的再训练过程。

    Residential gateway for voice over internet protocol communications
    9.
    发明授权
    Residential gateway for voice over internet protocol communications 有权
    用于互联网协议通信语音的住宅网关

    公开(公告)号：US08532147B2

    公开(公告)日：2013-09-10

    申请号：US13554861

    申请日：2012-07-20

    申请人： William Scholtz ,  Ben Chan ,  Ehud Langberg ,  Shareq Rahman ,  Xy Chen ,  James Zhang

    发明人： William Scholtz ,  Ben Chan ,  Ehud Langberg ,  Shareq Rahman ,  Xy Chen ,  James Zhang

    IPC分类号： H04J1/02 ,  H04M11/00

    CPC分类号： H04M3/4281 ,  H04M3/02 ,  H04M3/18 ,  H04M3/42365 ,  H04M7/006 ,  H04M2203/156

    摘要： A method and system are provided for preventing data loss in a VoIP system. In particular, during a VoIP call, it is determined whether incoming ringing on a POTS line causes an unacceptable level of signal loss or errors. If so, for subsequent VoIP calls, the CO handling calls to the POTS line is instructed to either answer each call with a busy signal or automatically forward calls to the POTS line to the VoIP line or other selected telephone. Calling returns to normal upon ending of the VoIP call. In this manner, incoming ringing on the POTS line does not result in call dropping or lengthy retraining processes.

    摘要翻译： 提供了一种防止VoIP系统中的数据丢失的方法和系统。 特别地，在VoIP呼叫期间，确定POTS线上的输入振铃是否导致不可接受的信号丢失或错误的水平。 如果是这样，对于随后的VoIP呼叫，指示对POTS线路的CO处理呼叫以忙信号来应答每个呼叫，或者自动将呼叫转移到VoIP线路或其他所选电话的POTS线路。 呼叫结束时呼叫恢复正常。 以这种方式，POTS线路上的呼入不会导致呼叫丢失或冗长的再训练过程。

    Systems and methods for improved bit loading for discrete multi-tone modulated multiple latency applications
    10.
    发明授权
    Systems and methods for improved bit loading for discrete multi-tone modulated multiple latency applications 有权
    用于离散多色调多个延迟应用的改进位加载的系统和方法

    公开(公告)号：US07813434B2

    公开(公告)日：2010-10-12

    申请号：US11559772

    申请日：2006-11-14

    申请人： Yan Wu ,  Lujing Cai ,  William Scholtz ,  Ehud Langberg

    发明人： Yan Wu ,  Lujing Cai ,  William Scholtz ,  Ehud Langberg

    IPC分类号： H04K1/10 ,  H04L27/28

    CPC分类号： H04L27/2608 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/006 ,  H04L1/007 ,  H04L5/14

    摘要： Systems and methods for performing bit loading in a dual latency data transmission system. In a computer network, such as an XDSL-based network, carrier channels are allocated between two latency paths. Error sensitive information is transmitted over a latency path employing one or more forward error correction techniques. Latency sensitive information that is relatively more tolerant of errors is transmitted over the other latency path. Rather than employing the lowest coding gain for carrier channels having the two different latency paths, the highest coding gain for each path is used by applying different target S-N-R margins for carrier channels having different latency paths.

    摘要翻译： 用于在双延迟数据传输系统中执行比特加载的系统和方法。 在诸如基于XDSL的网络的计算机网络中，在两个等待时间路径之间分配载波信道。 误差敏感信息通过采用一个或多个前向纠错技术的等待时间路径传输。 通过另一个等待时间路径发送相对更容忍错误的延迟敏感信息。 不是对具有两个不同等待时间路径的载波信道采用最低的编码增益，而是通过对具有不同等待时间路径的载波信道应用不同的目标S-N-R边缘来使用每个路径的最高编码增益。