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    Staged data compression, including block level long range compression, for data streams in a communications system
    11.
    发明授权
    Staged data compression, including block level long range compression, for data streams in a communications system 有权
    用于通信系统中的数据流的分级数据压缩，包括块级远程压缩

    公开(公告)号：US09363339B2

    公开(公告)日：2016-06-07

    申请号：US14214736

    申请日：2014-03-15

    申请人： Hughes Network Systems, LLC

    发明人： Udaya Bhaskar ,  Chi-Jiun Su

    IPC分类号： G06F7/00 ,  H04L29/06 ,  H03M7/30 ,  H03M7/40

    CPC分类号： H03M7/3084 ,  H03M7/30 ,  H03M7/3059 ,  H03M7/3088 ,  H03M7/4006 ,  H04L69/04

    摘要： Approaches for staged data compression are provided, where each stage reflects a progressive increase in granularity, resulting in a scalable approach that exhibits improved efficiency and compression performance. The first stage comprises a long-range block-level compressor that determines redundancies on a block-level basis (based on entire data blocks, as opposed to partial segments within data blocks). The second stage comprises a long-range byte-level compressor that compresses an uncompressed block based on byte segments within the block that match previously transmitted segments. The duplicate segments are replaced with pointers to matching segments within a decompressor cache. Nonmatching segments of the data block are left uncompressed and passed to a third stage short-range compressor (e.g., a grammar-based compressor). The staged progression in granularity provides advantages of maximizing the compression gain while minimizing processing and storage requirements of the compressor and decompressor.

    摘要翻译： 提供了用于分级数据压缩的方法，其中每个阶段反映了粒度的逐渐增加，从而产生了展现改进的效率和压缩性能的可扩展方法。 第一级包括远程块级压缩器，其基于块级（基于整个数据块，而不是数据块内的部分段）来确定冗余。 第二级包括一个远程字节级的压缩器，该压缩器基于块内匹配先前传输的段的字节段来压缩未压缩的块。 重复段被替换为解压缩器缓存中的匹配段的指针。 数据块的非匹配段保持未压缩并传递到第三级短程压缩器（例如，基于语法的压缩器）。 粒度分级的进展提供了最大化压缩增益的优点，同时最小化压缩机和解压缩器的处理和存储要求。

    OVERLAY OF A FORWARD LINK ON BROADBAND SATELLITE SIGNALS
    12.
    发明申请
    OVERLAY OF A FORWARD LINK ON BROADBAND SATELLITE SIGNALS 有权

    公开(公告)号：US20220209850A1

    公开(公告)日：2022-06-30

    申请号：US17135378

    申请日：2020-12-28

    申请人： Hughes Network Systems, LLC

    发明人： Lin-Nan Lee ,  Udaya Bhaskar

    IPC分类号： H04B7/185 ,  H04L12/715

    摘要： Various arrangements for a satellite-based forward link overlay are presented herein. In some embodiments, broadband data is modulated at a particular frequency, phase, and/or timing to create a broadband data signal. The frequency, phase, and/or timing are used to modulate a low-bandwidth data signal. The low-bandwidth data signal can then be combined with the broadband data signal and transmitted via satellite to a geographic region. A low-bandwidth receiver unit may determine the frequency, phase, and/or timing from the embedded broadband signal and use such information to demodulate and despread the low-bandwidth data signal.

    Data compression for priority based data traffic, on an aggregate traffic level, in a multi stream communications system
    14.
    发明授权
    Data compression for priority based data traffic, on an aggregate traffic level, in a multi stream communications system 有权

    公开(公告)号：US10277716B2

    公开(公告)日：2019-04-30

    申请号：US15333924

    申请日：2016-10-25

    申请人： Hughes Network Systems, LLC

    发明人： Udaya Bhaskar ,  Douglas Dillon

    IPC分类号： G06F7/00 ,  H04L29/06 ,  H03M7/30 ,  H03M7/40 ,  H04L29/08

    摘要： An approach for multi-stream data compression comprises receiving packets of a data stream, wherein the packets comprise respective packets of source data streams compressed on an aggregate basis and in a successive order. A one of the packets is decompressed, and a determination is made whether the packet has been received in a proper order of succession compared to the successive order of compression. When it is determined that the packet has been received in the proper order, the packet is stored at a next location in a decompressor cache. When it is determined that the packet has not been received in the proper order, the packet is stored at a location in the decompressor cache, allowing for subsequent storage of one or more further packets in the proper order of succession, wherein the further packets were processed via the compression process before, but were received after, the one packet.

    System and method for long range and short range data compression
    15.
    发明授权
    System and method for long range and short range data compression 有权

    公开(公告)号：US09716734B2

    公开(公告)日：2017-07-25

    申请号：US14301295

    申请日：2014-06-10

    申请人： Hughes Network Systems, LLC

    发明人： Udaya Bhaskar ,  Chi-Jiun Su

    IPC分类号： G06F5/00 ,  H04L29/06 ,  H03M7/30 ,  H03M7/40

    CPC分类号： H04L65/60 ,  H03M7/3088 ,  H03M7/4006 ,  H04L69/04

    摘要： A system and method are provided for use with streaming blocks of data, each of the streaming blocks of data including a number bits of data. The system includes a first compressor and a second compressor. The first compressor can receive and store a number n blocks of the streaming blocks of data, can receive and store a block of data to be compressed of the streaming blocks of data, can compress consecutive bits within the block of data to be compressed based on the n blocks of the streaming blocks of data, can output a match descriptor and a literal segment. The match descriptor is based on the compressed consecutive bits. The literal segment is based on a remainder of the number of bits of the data to be compressed not including the consecutive bits. The second compressor can compress the literal segment and can output a compressed data block including the match descriptor and a compressed string of data based on the compressed literal segment.

    Overlay of a forward link on broadband satellite signals
    17.
    发明授权
    Overlay of a forward link on broadband satellite signals 有权

    公开(公告)号：US11569903B2

    公开(公告)日：2023-01-31

    申请号：US17135378

    申请日：2020-12-28

    申请人： Hughes Network Systems, LLC

    发明人： Lin-Nan Lee ,  Udaya Bhaskar

    IPC分类号： H04B7/185 ,  H04L45/64

    摘要： Various arrangements for a satellite-based forward link overlay are presented herein. In some embodiments, broadband data is modulated at a particular frequency, phase, and/or timing to create a broadband data signal. The frequency, phase, and/or timing are used to modulate a low-bandwidth data signal. The low-bandwidth data signal can then be combined with the broadband data signal and transmitted via satellite to a geographic region. A low-bandwidth receiver unit may determine the frequency, phase, and/or timing from the embedded broadband signal and use such information to demodulate and despread the low-bandwidth data signal.