ENERGY AND SPACE EFFICIENT DETECTION FOR DATA STORAGE
    32.
    发明申请
    ENERGY AND SPACE EFFICIENT DETECTION FOR DATA STORAGE 有权
    能量和空间有效的数据存储检测

    公开(公告)号:US20110264975A1

    公开(公告)日:2011-10-27

    申请号:US12764765

    申请日:2010-04-21

    IPC分类号: H04L1/18 G06F11/10

    摘要: Provided are methods and systems of selectively decoding optical data read from an optical storage medium based on a checksum algorithm technique. In one embodiment, optical data is converted into a data stream and buffered, and the checksum algorithm is applied to the data stream. If the calculated checksum matches an encoded checksum of the data stream, the data stream may be output without requiring further decoding. If the calculated checksum does not match the encoded checksum, the buffered data stream may be decoded to produce a corrected data stream, and the checksum algorithm may be applied to the corrected data stream. In some embodiments, the optical data may be re-read if the corrected data stream does not pass the checksum test, and the data stream obtained from the re-reading may be combined with the buffered data stream for further decoding.

    摘要翻译: 提供了基于校验和算法技术来选择性地解码从光存储介质读取的光数据的方法和系统。 在一个实施例中,将光学数据转换为数据流并进行缓冲,并将校验和算法应用于数据流。 如果所计算的校验和与数据流的编码校验和匹配,则可以输出数据流而不需要进一步解码。 如果所计算的校验和与编码的校验和不匹配,则缓冲的数据流可以被解码以产生校正的数据流,并且校验和算法可以应用于校正的数据流。 在一些实施例中,如果校正的数据流未通过校验和测试,则可以重新读取光学数据,并且可以将从重新读取获得的数据流与缓冲的数据流组合以进一步解码。

    DIVISION FREE DUPLEXING NETWORKS
    33.
    发明申请
    DIVISION FREE DUPLEXING NETWORKS 有权
    部门免费双工网络

    公开(公告)号:US20110249596A1

    公开(公告)日:2011-10-13

    申请号:US12757721

    申请日:2010-04-09

    IPC分类号: H04L5/14

    摘要: Provided are methods and systems of using division-free duplexing (DFD) in a communication network. Techniques for applying DFD in a communication network may decrease bottlenecks in the network by allowing one or more network nodes to transmit and on substantially the same frequency and at substantially the same time. In one embodiment, one or more nodes in the network may be DFD enabled, and may be configured to operate in either a conventional mode or a DFD mode. The mode of operation of DFD enabled nodes may depend on the quality of signals transmitted to and/or received at the DFD enabled nodes. Further, the mode of operation may change dynamically, and may be substantially controlled by any suitable processor in the network.

    摘要翻译: 提供了在通信网络中使用无分割双工(DFD)的方法和系统。 用于在通信网络中应用DFD的技术可以通过允许一个或多个网络节点在基本上相同的频率上和基本上相同的时间发射来减少网络中的瓶颈。 在一个实施例中,网络中的一个或多个节点可以被启用DFD,并且可以被配置为以常规模式或DFD模式操作。 启用DFD的节点的操作模式可能取决于在启用DFD的节点上发送到和/或接收的信号的质量。 此外,操作模式可以动态地改变,并且可以基本上由网络中的任何合适的处理器来控制。

    SYSTEM AND METHOD FOR CONTROLLING TRACKING IN AN OPTICAL DRIVE
    35.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING TRACKING IN AN OPTICAL DRIVE 有权
    用于控制光驱跟踪的系统和方法

    公开(公告)号:US20110170391A1

    公开(公告)日:2011-07-14

    申请号:US12338841

    申请日:2008-12-18

    IPC分类号: G11B7/125

    摘要: The present techniques provide methods and systems for alignment of a read head with data tracks on an optical data disk. In embodiments, a multi-pixel detector that is segmented into multiple areas, or detector segments, may be used to detect a pattern in the light reflected from an optical data disk. The detector system may then combine the quantized values from each of the detector segments mathematically to determine the alignment of the read head with a target data track. If the read head drifts to one side or the other, detectors to the side of a center detector may start to pick up energy from the adjacent tracks. If this energy is continuously summed for the detectors on each side, the read head may be centered by balancing the sums from the detectors on each side.

    摘要翻译: 本技术提供了用于将读取头与光学数据盘上的数据轨迹对准的方法和系统。 在实施例中,分割成多个区域或检测器段的多像素检测器可用于检测从光学数据盘反射的光中的图案。 然后,检测器系统可以在数学上组合来自每个检测器段的量化值,以确定读取头与目标数据轨道的对准。 如果读取头漂移到一侧或另一侧,则中心检测器侧面的检测器可能开始从相邻轨道拾取能量。 如果对于每一侧上的检测器持续求和这个能量,则读头可以通过平衡来自每侧的检测器的和来居中。

    System and method for relaying turbo-coded piggyback messages
    37.
    发明授权
    System and method for relaying turbo-coded piggyback messages 有权
    用于中继turbo编码搭载消息的系统和方法

    公开(公告)号:US07885289B2

    公开(公告)日:2011-02-08

    申请号:US11640952

    申请日:2006-12-19

    IPC分类号: H04J3/16

    摘要: Systems and/or methods for relaying messages between nodes in a network (e.g. a wireless network) are provided. In accordance with certain exemplary embodiments, substantially simultaneous communications between nodes may be accomplished. At least one secondary turbo-coded message may be piggybacked onto a turbo-coded primary message. Messages in the network may be queued and sent from a transmitter to at least one receiver based at least in part on the signal-to-noise ratio(s) of the receiver nodes with respect to the transmitter. Thus, it may be possible to realize a network that reduces collision problems, reduces delays in communications, and/or increases throughput.

    摘要翻译: 提供了用于在网络(例如无线网络)中的节点之间中继消息的系统和/或方法。 根据某些示例性实施例,可以实现节点之间的基本上同时的通信。 至少一个二次涡轮编码消息可以搭载在turbo编码的主消息上。 至少部分地基于接收机节点相对于发射机的信噪比,网络中的消息可以被排队并从发射机发送到至少一个接收机。 因此,可以实现减少冲突问题,减少通信延迟和/或增加吞吐量的网络。

    JOINT DC MINIMIZATION AND BIT DETECTION
    38.
    发明申请
    JOINT DC MINIMIZATION AND BIT DETECTION 有权
    联合直流最小化和位检测

    公开(公告)号:US20100246359A1

    公开(公告)日:2010-09-30

    申请号:US12414310

    申请日:2009-03-30

    摘要: The present techniques provide systems and methods for decoding a data signal with a control bit to improve bit estimation. The techniques in one embodiment involve using decoding algorithms to estimate the a posteriori state probabilities and the a posteriori transition probabilities of the data encoding, and estimating bit state probabilities. The techniques further involve using a control bit in the bit stream and comparing the estimation of the control bit state in the segment of the bit stream with a test control bit determined based on an average of bit states from the encoded segment of the bit stream. If the estimation of the control bit and the test control bit are not equal, the state of the bit estimate with the lowest confidence probability will be changed.

    摘要翻译: 本技术提供了利用控制位对数据信号进行解码以提高比特估计的系统和方法。 一个实施例中的技术涉及使用解码算法来估计后验状态概率和数据编码的后验转移概率,以及估计比特状态概率。 这些技术还涉及使用比特流中的控制比特并且比较比特流的片段中的控制比特状态的估计与基于来自比特流的编码片段的比特状态的平均值确定的测试控制比特。 如果控制位和测试控制位的估计不相等,则置信概率最低的位估计的状态将被改变。

    APPARATUS AND METHOD OF OPTIMIZING SLOT LOCATIONS FOR WIRELESS SENSORS
    39.
    发明申请
    APPARATUS AND METHOD OF OPTIMIZING SLOT LOCATIONS FOR WIRELESS SENSORS 有权
    优化无线传感器槽位的装置和方法

    公开(公告)号:US20090185546A1

    公开(公告)日:2009-07-23

    申请号:US12016489

    申请日:2008-01-18

    IPC分类号: H04J3/00

    摘要: A wireless communication system includes a network controller configured to manage communication time periods in a wireless network, and a plurality of peripheral devices connected to the network controller through the wireless network. Each peripheral device is associated with a respective contiguous communication time period during which communications between the network controller and the peripheral device are allowed. The network controller is further configured to identify an open communication time period associated with one of the plurality of peripheral devices that has no communication between the network controller and the one of the plurality of peripheral devices and associate another of the plurality of peripheral devices that is associated with a different communication time period with the identified open communication time period.

    摘要翻译: 无线通信系统包括被配置为管理无线网络中的通信时间段的网络控制器和通过无线网络连接到网络控制器的多个外围设备。 每个外围设备与允许网络控制器和外围设备之间的通信的相应连续通信时间段相关联。 网络控制器还被配置为识别与多个外围设备之一相关联的开放通信时间段,该多个外围设备之一在网络控制器与多个外围设备中的一个之间没有通信,并且将多个外围设备中的另一个外围设备 与具有所识别的开放通信时间段的不同通信时间段相关联。