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33 条记录 (耗时 0.024 秒)

    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system
    1.
    发明申请
    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system 有权
    多天线正交频分复用通信系统中自适应比特加载的系统和方法

    公开(公告)号：US20050147076A1

    公开(公告)日：2005-07-07

    申请号：US10750587

    申请日：2003-12-29

    申请人： John Sadowsky ,  Minnie Ho ,  Sumeet Sandhu ,  Alexander Maltsev ,  Eric Jacobsen ,  Ali Sadri

    发明人： John Sadowsky ,  Minnie Ho ,  Sumeet Sandhu ,  Alexander Maltsev ,  Eric Jacobsen ,  Ali Sadri

    IPC分类号： H04L1/06 ,  H04L27/26 ,  H04W16/28 ,  H04W74/02 ,  H04J1/00

    CPC分类号： H04W16/28 ,  H04B7/0408 ,  H04L27/2602 ,  H04W74/02

    摘要： In an orthogonal frequency division multiplexed (OFDM) system, a transmitter and/or receiver communicate separate data streams on non-orthogonal spatial channels. Each spatial channel may use the same set of OFDM subcarriers and may take advantage of the multipath characteristics of the spatial channel allowing the communication of additional data without an increase in frequency bandwidth. Space-frequency subcarrier modulation assignments may be dynamically assigned on a per subcarrier basis as well as a per spatial channel basis to help maximize the data-carrying capacity of the channel. In some embodiments, each of the spatial channels may be associated with one of a plurality of spatially diverse antennas. In other embodiments, beamforming may be performed to allow the transmission and/or reception of signals within the spatial channels.

    摘要翻译： 在正交频分复用（OFDM）系统中，发射机和/或接收机在非正交空间信道上传送单独的数据流。 每个空间信道可以使用相同的OFDM子载波集合，并且可以利用空间信道的多径特性，允许附加数据的通信而不增加频带宽度。 可以在每个子载波基础上以及每个空间信道基础上动态分配空频子载波调制分配，以帮助最大化信道的数据承载能力。 在一些实施例中，每个空间信道可以与多个空间多样的天线中的一个相关联。 在其他实施例中，可以执行波束成形以允许空间信道内的信号的发送和/或接收。

    Forward error correction coding in communication networks
    3.
    发明申请
    Forward error correction coding in communication networks 失效
    通信网络中的前向纠错编码

    公开(公告)号：US20050111345A1

    公开(公告)日：2005-05-26

    申请号：US10723133

    申请日：2003-11-25

    申请人： Eric Jacobsen ,  John Sadowsky

    发明人： Eric Jacobsen ,  John Sadowsky

    IPC分类号： H04L1/00 ,  H04L1/18 ,  H04L27/26 ,  H04J11/00

    CPC分类号： H04L1/005 ,  H04L1/0041 ,  H04L1/0057 ,  H04L27/2602

    摘要： Methods, apparatus and systems are disclosed for block encoding/decoding information wireless networks having narrow decoding latency restrictions. A method includes identifying a length of information to be sent in a block code and encoding the information to be sent in the block code into one or more codewords, where the number of codewords and the amount of information encoded within each codeword is adjusted based on the identified length and to achieve a similar codeword error probability for each codeword considering available decoding time for decoding a last codeword is less than available decoding time for decoding a first codeword. In certain implementations low density parity check (LDPC) encoding may be used in combination with OFDM to provide reliable communications in a high throughput WLAN.

    摘要翻译： 公开了用于具有窄解码延迟限制的块编码/解码信息无线网络的方法，装置和系统。 一种方法包括识别要在块码中发送的信息的长度，并将要在块码中发送的信息编码成一个或多个码字，其中码字的数量和在每个码字内编码的信息量基于 考虑用于解码最后一个码字的可用解码时间，识别的长度并且为每个码字实现类似的码字错误概率小于用于解码第一码字的可用解码时间。 在某些实施方式中，低密度奇偶校验（LDPC）编码可以与OFDM组合使用以在高吞吐量WLAN中提供可靠的通信。

    System and method for recording, compiling and displaying user reviews of a product
    8.
    发明授权
    System and method for recording, compiling and displaying user reviews of a product 有权

    公开(公告)号：US11361350B2

    公开(公告)日：2022-06-14

    申请号：US16415752

    申请日：2019-05-17

    申请人： Eric Jacobsen

    发明人： Eric Jacobsen

    IPC分类号： G06Q30/02 ,  G06Q10/06 ,  G06F16/9038 ,  G06F3/0354

    摘要： A computer-implemented method and system for recording, compiling and displaying user reviews of a consumable product. The method comprising providing a user display graph on a user device, the user display graph having an x-axis and a y-axis with a baseline extending from the y-axis along the x-axis wherein the x-axis is divided into a plurality of review categories, detecting a user input from an input device within the user display graph on the user device and tracking the movement of the user input on the user device along a path through the plurality of review categories. The method further comprises measuring a plurality of review points on the path wherein each of the plurality of review points is located within one of the plurality of review categories, displaying a profile line connecting the plurality of review points along the path, and displaying numerical values representing each of the plurality of review points within each of the plurality of review categories.

    Techniques for uequal error protection for layered protection applications
    9.
    发明申请
    Techniques for uequal error protection for layered protection applications 审中-公开
    分层保护应用的uequal错误保护技术

    公开(公告)号：US20070180349A1

    公开(公告)日：2007-08-02

    申请号：US11344034

    申请日：2006-01-31

    申请人： Eric Jacobsen

    发明人： Eric Jacobsen

    IPC分类号： H03M13/00

    CPC分类号： H03M13/1102 ,  H03M13/1165 ,  H03M13/356 ,  H03M13/618 ,  H03M13/635 ,  H04L1/0007 ,  H04L1/0009

    摘要： A system, apparatus, and method includes an encoder to encode information comprising a codeword to be transmitted at a node using variable length block codes applied to a packet having a variable length data payload. Other embodiments are described and claimed. The system further includes an antenna and a transceiver coupled to the encoder.

    摘要翻译： 一种系统，装置和方法包括：编码器，用于对应用于具有可变长度数据有效载荷的分组的可变长度块代码在节点处传输的码字进行编码。 描述和要求保护其他实施例。 该系统还包括耦合到编码器的天线和收发器。

    Method and apparatus for varying lengths of low density party check codewords
    10.
    发明申请
    Method and apparatus for varying lengths of low density party check codewords 有权
    用于改变低密度派对检查码字长度的方法和装置

    公开(公告)号：US20050154958A1

    公开(公告)日：2005-07-14

    申请号：US10815311

    申请日：2004-03-31

    申请人： Bo Xia ,  Eric Jacobsen

    发明人： Bo Xia ,  Eric Jacobsen

    IPC分类号： H03M13/00 ,  H04W28/04 ,  H04W84/12

    CPC分类号： H04L1/0051 ,  H03M13/1114 ,  H03M13/1117 ,  H03M13/1128 ,  H03M13/3707 ,  H04L1/0057 ,  H04W84/12

    摘要： A method and apparatus for encoding/decoding information using low density parity check (LDPC) codewords of varying lengths. In one implementation, an encoder/decoder uses a parity check matrix having a size that corresponds to a length of information for each codeword. In one example, the size of the parity check matrix may be retrieved from multiple stored matrices having different sizes. In other examples, a mother code matrix may be dynamically adjusted by puncturing parity bits and/or deleting information bits. Other inventive embodiments and adaptations are also disclosed.

    摘要翻译： 一种使用不同长度的低密度奇偶校验（LDPC）码字对信息进行编码/解码的方法和装置。 在一个实现中，编码器/解码器使用具有对应于每个码字的信息长度的大小的奇偶校验矩阵。 在一个示例中，可以从具有不同大小的多个存储的矩阵中检索奇偶校验矩阵的大小。 在其他示例中，母码矩阵可以通过删截奇偶校验位和/或删除信息比特来动态地调整。 还公开了其它发明实施例和适配。