Optimizing throughput of data frames in orthogonal frequency division multiplexing (OFDM) communication networks
    72.
    发明授权
    Optimizing throughput of data frames in orthogonal frequency division multiplexing (OFDM) communication networks 有权
    在正交频分复用(OFDM)通信网络中优化数据帧的吞吐量

    公开(公告)号:US09166845B2

    公开(公告)日:2015-10-20

    申请号:US13538442

    申请日:2012-06-29

    摘要: In one embodiment, a device maintains a predetermined number of high-priority subcarriers for use in communicating high-priority data frames and a predetermined number of low-priority subcarriers for use in communicating low-priority data frames. A data frame is received and a data frame priority is determined for the data frame. If the data frame is determined to be a low-priority data frame, a minimum number of subcarriers, from the low-priority subcarriers, required for communication of the data frame is determined and the data frame is communicated using the minimum number of subcarriers. If the data frame is determined to be a high-priority data frame, a maximum number of subcarriers available, including the high-priority subcarriers and the low-priority subcarriers, is determined and the data frame is communicated using the maximum number of subcarriers.

    摘要翻译: 在一个实施例中,设备维护预定数量的高优先级子载波,用于传送高优先级数据帧和预定数量的低优先级子载波,以用于传送低优先级数据帧。 接收数据帧,并为数据帧确定数据帧优先级。 如果数据帧被确定为低优先级数据帧,则确定从数据帧通信所需的低优先级子载波的最小子载波数目,并且使用最小数目的副载波来传送数据帧。 如果数据帧被确定为高优先级数据帧,则确定包括高优先级子载波和低优先级子载波的最大子载波数目,并且使用最大数目的副载波来传送数据帧。

    Method and apparatus for stereo misalignment estimation using modified affine or perspective model
    73.
    发明授权
    Method and apparatus for stereo misalignment estimation using modified affine or perspective model 有权
    使用改进的仿射或透视模型进行立体失准估计的方法和装置

    公开(公告)号:US08768096B2

    公开(公告)日:2014-07-01

    申请号:US13298936

    申请日:2011-11-17

    IPC分类号: G06K9/36 G06K9/32

    摘要: A method and apparatus for estimating stereo misalignment using modified affine or perspective model. The method includes dividing a left frame and a right frame into blocks, comparing horizontal and vertical boundary signals in the left frame and the right frame, estimating the horizontal and the vertical motion vector for each block in a reference frame, selecting a reliable motion vectors from a set of motion vectors, dividing the selected block into smaller features, feeding the data to an affine or a perspective transformation model to solve for the model parameters, running the model parameters through a temporal filter, portioning the estimated misalignment parameters between the left frame and right frame, and modifying the left frame and the right frame to save some boundary space.

    摘要翻译: 一种使用改进的仿射或透视模型估计立体失准的方法和装置。 该方法包括将左帧和右帧划分为块,比较左帧和右帧中的水平和垂直边界信号,估计参考帧中每个块的水平和垂直运动矢量,选择可靠的运动矢量 从一组运动矢量中,将所选择的块分成更小的特征,将数据馈送到仿射或透视变换模型以解决模型参数,通过时间滤波器运行模型参数,将估计的未对准参数分布在左侧 帧和右帧,并修改左帧和右帧,以节省一些边界空间。

    RECORDING PACKET ROUTES USING BLOOM FILTERS
    74.
    发明申请
    RECORDING PACKET ROUTES USING BLOOM FILTERS 有权
    使用BLOOM过滤器记录分组路由

    公开(公告)号:US20140036908A1

    公开(公告)日:2014-02-06

    申请号:US13563573

    申请日:2012-07-31

    IPC分类号: H04L12/56

    摘要: In one embodiment, a Bloom filter is provided in a data packet signal functional to preferably encode the identifier of each nodal device and record the nodal hop count the signal traverses across in a computer network. The Bloom filter provided in a data packet signal has one or more fields. The recorded nodal path may updated en-route as the data packet traverses a nodal path in the computer network and/or the order of nodes traversed by the data packet in the computer network are encoded in the bloom filter.

    摘要翻译: 在一个实施例中,布隆过滤器被提供在功能上的数据分组信号中,以优选地对每个节点设备的标识符进行编码,并记录信号在计算机网络中穿过的节点跳数。 在数据分组信号中提供的布隆过滤器具有一个或多个字段。 记录的节点路径可以随着数据分组穿越计算机网络中的节点路径和/或由计算机网络中的数据分组穿过的节点的顺序被编码在布隆过滤器中而被更新。

    Timing re-synchronization with reduced communication energy in frequency hopping communication networks
    75.
    发明授权
    Timing re-synchronization with reduced communication energy in frequency hopping communication networks 有权
    定时重新同步,减少跳频通信网络中的通信能量

    公开(公告)号:US08619789B2

    公开(公告)日:2013-12-31

    申请号:US13180908

    申请日:2011-07-12

    IPC分类号: H04L12/28 H04L12/56 H04B1/00

    摘要: In one embodiment, a battery-operated communication device “quick-samples” a frequency hopping sequence at a periodic rate corresponding to a substantially low duty cycle, and is discovered by (e.g., attached to) a main-powered communication device. During a scheduled sample, the main-powered communication device transmits a control packet to be received by the battery-operated communication device, the control packet containing timing information and transmitted to account for worst-case clock drift error between the two devices. The battery-operated communication device responds to the control packet with a link-layer acknowledgment containing timing information from the battery-operated communication device. Accordingly, the two devices may re-synchronize their timing based on the timing information in the control packet and acknowledgment, respectively.

    摘要翻译: 在一个实施例中,电池供电的通信设备以对应于基本上较低占空比的周期性速率“跳频”跳频序列,并且通过(例如附接到)主供电通信设备来发现。 在预定采样期间,主供电通信设备发送由电池供电的通信设备接收的控制分组,该控制分组包含定时信息,并且被传送以考虑两个设备之间的最坏情况时钟漂移误差。 电池供电的通信设备用包含来自电池供电通信设备的定时信息的链路层确认来响应控制分组。 因此,两个设备可以分别基于控制分组和确认中的定时信息重新同步其定时。

    System and method for computer aided polyp detection
    76.
    发明授权
    System and method for computer aided polyp detection 有权
    计算机辅助息肉检测系统及方法

    公开(公告)号:US08600125B2

    公开(公告)日:2013-12-03

    申请号:US11993180

    申请日:2006-06-21

    IPC分类号: G06K9/00

    摘要: In the present methods, the automatic detection of polyps is converted into a 2D pattern recognition problem using conformal mapping and direct volume rendering. The colon surface is first segmented and extracted from the CT data set of the abdomen, which is then mapped to a 2D plane using conformal mapping. Ray casting is used to determine sub-surface density values and the flattened image is rendered using a volume rendering technique with a translucent electronic biopsy transfer function. Polyp candidates are detected by a clustering method which identifies regions of elevated sub-surface density. The potential for false positives is reduced by analyzing the volumetric shape and texture features of the polyp candidate regions.

    摘要翻译: 在本方法中,使用保形映射和直接体绘制,将息肉的自动检测转换为2D模式识别问题。 首先将结肠表面分割并从腹部的CT数据集中提取出来,然后使用保形图映射到2D平面。 Ray铸造用于确定亚表面密度值,并且使用具有半透明电子活检传递函数的体绘制技术来渲染平坦化图像。 通过聚类方法检测Polyp候选物,其识别升高的亚表面密度的区域。 通过分析息肉候选区域的体积形状和纹理特征来减少假阳性的潜力。

    ON-DEMAND PAIR-WISE FREQUENCY-HOPPING SYNCHRONIZATION
    77.
    发明申请
    ON-DEMAND PAIR-WISE FREQUENCY-HOPPING SYNCHRONIZATION 有权
    需求配对频率同步同步

    公开(公告)号:US20130279540A1

    公开(公告)日:2013-10-24

    申请号:US13566875

    申请日:2012-08-03

    IPC分类号: H04B1/7156

    摘要: In one embodiment, a device receives and stores a broadcast schedule, and may determine whether a neighbor unicast listening schedule is available for a neighboring device. If so, the device may transmit a data frame to the neighboring device pursuant to the neighbor unicast listening schedule. If a neighbor unicast listening schedule is not available, the device may transmit the data frame to the neighboring device pursuant to a broadcast schedule. Once the data frame is received by the neighboring device, pursuant to the neighbor unicast listening schedule or the broadcast schedule, an acknowledgement may be received from the neighboring device, which may include an updated neighbor unicast listening schedule for that neighboring device.

    摘要翻译: 在一个实施例中,设备接收并存储广播调度,并且可以确定邻居单播监听调度是否可用于相邻设备。 如果是,则设备可以根据邻居单播监听时间表向相邻设备发送数据帧。 如果邻居单播监听调度不可用,则设备可以根据广播时间表将数据帧发送到相邻设备。 一旦相邻设备接收到数据帧,根据邻居单播监听调度或广播调度,可以从相邻设备接收确认,该确认可以包括该相邻设备的更新的邻居单播监听调度。

    DISPLAY-CAMERA SYSTEMS
    78.
    发明申请
    DISPLAY-CAMERA SYSTEMS 有权
    显示相机系统

    公开(公告)号:US20130278844A1

    公开(公告)日:2013-10-24

    申请号:US13454760

    申请日:2012-04-24

    IPC分类号: G02F1/13

    摘要: A display-camera system includes a liquid crystal panel having a screen side and a back side that is opposed to the screen side. A visible light camera is positioned a first spaced distance from the back side such that a field of view of the camera encompasses all or a fraction of an area of the liquid crystal panel. A visible light source is positioned a second spaced distance from the back side and outside of the field of view of the camera. A diffuser is positioned between the visible light source and the back side.

    摘要翻译: 显示照相机系统包括具有与屏幕侧相对的屏幕侧和背面的液晶面板。 可见光相机位于与背面的第一间隔距离处,使得照相机的视野包围液晶面板的全部或部分区域。 可见光源与照相机视场的背侧和外侧隔开第二距离。 漫射器位于可见光源和背面之间。

    Stereoscopic Auto-Focus Based on Coordinated Lens Positions
    79.
    发明申请
    Stereoscopic Auto-Focus Based on Coordinated Lens Positions 有权
    基于协调镜头位置的立体自动对焦

    公开(公告)号:US20130028582A1

    公开(公告)日:2013-01-31

    申请号:US13191357

    申请日:2011-07-26

    IPC分类号: G03B13/36 G03B13/00 G03B13/18

    摘要: Methods for automatic focus in a stereographic imaging device that includes two imaging sensor systems are provided. Focus searches are executed on both imaging sensor systems to determine optimal focused lens positions for each. The focus searches may be executed currently or sequentially, and may be at differing lens position granularities. Focal scores and spatial locations, i.e., the locations of focus regions, may be shared between the imaging sensor systems to coordinate the focus searches. Touchscreen coordinates may also be used to coordinate the focus searches.

    摘要翻译: 提供了包括两个成像传感器系统的立体成像装置中的自动聚焦方法。 在两个成像传感器系统上执行焦点搜索,以确定每个成像传感器的最佳聚焦透镜位置。 焦点搜索可以当前或顺序执行,并且可以处于不同的镜头位置粒度。 焦点分数和空间位置,即焦点区域的位置可以在成像传感器系统之间共享以协调焦点搜索。 触摸屏坐标也可用于协调焦点搜索。

    COLLECTING POWER OUTAGE NOTIFICATIONS IN A FREQUENCY HOPPING COMMUNICATION NETWORK
    80.
    发明申请
    COLLECTING POWER OUTAGE NOTIFICATIONS IN A FREQUENCY HOPPING COMMUNICATION NETWORK 有权
    收集频率通信网络中的功率失效通知

    公开(公告)号:US20130028295A1

    公开(公告)日:2013-01-31

    申请号:US13192802

    申请日:2011-07-28

    IPC分类号: H04B1/713

    CPC分类号: H04B1/713

    摘要: In one embodiment, a device in a frequency hopping communication network operate in a first mode according to a common broadcast schedule for the network that simultaneously overlays a first configured portion of all independently determined unicast listening schedules in the network. In response to determining a power outage condition, the device switches to operation in a power outage mode where the common broadcast schedule for the network in the power outage mode simultaneously overlays a second configured portion of all independently determined unicast listening schedules in the network, the second configured portion greater than the first configured portion. In one embodiment, the device broadcasts one or more power outage notifications (PONs) in response to determining the power outage condition as a reduction of a main power supply at the device. In another embodiment, the device receives a PON while powered as the power outage condition.

    摘要翻译: 在一个实施例中,跳频​​通信网络中的设备根据网络的公共广播调度以第一模式操作,该网络同时覆盖网络中所有独立确定的单播监听时间表的第一配置部分。 响应于确定停电状况,设备切换到停电模式中的操作,其中停电模式下的网络的公共广播调度同时覆盖网络中所有独立确定的单播监听时间表的第二配置部分, 第二构造部分大于第一构造部分。 在一个实施例中,响应于将停电状况确定为设备上的主电源的减少,设备广播一个或多个断电通知(PON)。 在另一个实施例中,设备在停电状态下被接通时接收PON。