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    • 2. 发明授权
    • Physical layer network coding using forward error correction codes
    • 使用前向纠错码的物理层网络编码
    • US09088351B2
    • 2015-07-21
    • US14005730
    • 2012-03-16
    • Weimin LiuRui YangPhilip J. Pietraski
    • Weimin LiuRui YangPhilip J. Pietraski
    • H04B15/00H04B7/155H04L1/00H04B7/15
    • H04B15/00H04B7/15H04B7/15521H04L1/0076
    • Two network nodes may exchange messages through a relay using physical-layer network coding combined with forward error correction coding (FEC). The relay determines a prime field order based on the channel condition and communicates the field order to the network nodes. Each network node encodes an outgoing message with linear codes over a field such as finite field of the field order, and transmits a signal carrying the encoded outgoing message. The relay receives a composite signal carrying the summation of the messages from the two network nodes. The relay decodes the composite signal and extracts a composite message with linear codes over finite field of field order, and broadcasts a signal carrying the composite message. Each network node receives the signal from the relay and extracts the message intended for it using linear subtraction over finite field of field order.
    • 两个网络节点可以使用结合前向纠错编码(FEC)的物理层网络编码通过中继交换消息。 继电器基于信道条件确定主场顺序,并将该场顺序传送到网络节点。 每个网络节点通过诸如场顺序的有限域的字段编码具有线性码的输出消息,并且发送携带编码的输出消息的信号。 继电器接收携带来自两个网络节点的消息总和的复合信号。 中继解码复合信号,并通过有限场场顺序提取具有线性码的复合消息,并广播携带复合消息的信号。 每个网络节点接收来自中继器的信号,并通过有限场域顺序使用线性减法提取预期的消息。
    • 8. 发明授权
    • File system for a capture system
    • 捕获系统的文件系统
    • US07949849B2
    • 2011-05-24
    • US11168104
    • 2005-06-27
    • Rick LoweStephen BroekerWeimin Liu
    • Rick LoweStephen BroekerWeimin Liu
    • G06F12/00G06F17/00
    • H04L63/1408G06F21/552H04L63/123
    • A file system can be provided in a capture system to efficiently read and write captured objects. In one embodiment, such a file system includes a plurality of queues to queue captured objects to be written to a disk, each queue being associated with one of a plurality of object types, and each queue containing captured objects of the type associated with each queue. A scheduler can be provided to select one of the plurality of queues, and a block manager to select a partition of a disk, the partition being associated with the object type of the captured objects in the selected queue. A disk controller configured to write contiguous blocks of data from the selected queue to the selected partition is connected to the block manager to enable writing to a disk.
    • 可以在捕获系统中提供文件系统,以有效地读取和写入捕获的对象。 在一个实施例中,这样的文件系统包括多个队列以排队要被写入磁盘的被捕获对象,每个队列与多个对象类型中的一个相关联,并且每个队列包含与每个队列相关联的类型的捕获对象 。 可以提供调度器来选择多个队列中的一个,以及块管理器,用于选择磁盘的分区,所述分区与所选队列中的所捕获的对象的对象类型相关联。 被配置为将连续的数据块从所选择的队列写入所选择的分区的磁盘控制器被连接到块管理器以使能写入到磁盘。