利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

78 条记录 (耗时 0.02 秒)

    Simulated city generation
    5.
    发明授权
    Simulated city generation 有权
    模拟城市一代

    公开(公告)号：US07707012B2

    公开(公告)日：2010-04-27

    申请号：US10850455

    申请日：2004-05-19

    申请人： Adrian Stephens

    发明人： Adrian Stephens

    IPC分类号： G06F17/50 ,  G01C21/34 ,  G06F7/00

    CPC分类号： G06T17/05

    摘要： A city model generation process. A city model is generated using information about an actual city. A roadway database including segments of roadways is used to generate a city model having grid points corresponding to intersections between the roadway segments. A type of roadway determined from the roadway database information is associated with sets of grid points defining a single roadway. Elevation data is added to the city model using a topographic database. Features, such as a road profile, are added to the roadway using the type. Photographic and zoning information is used to further refine the type of a roadway with a subtype corresponding to features of buildings that may be associated with the roadway. Generic building models and features are associated with the roadways based on the subtypes. Landmark building models are added to the city model to complete the city model.

    摘要翻译： 城市模型生成过程。 使用有关实际城市的信息生成城市模型。 使用包括道路段的道路数据库来生成具有对应于道路段之间的交叉点的网格点的城市模型。 从道路数据库信息确定的一种道路与定义单个道路的网格点的集合相关联。 使用地形数据库将高程数据添加到城市模型。 使用该类型将特征（例如道路剖面）添加到道路。 照片和分区信息用于进一步细化具有对应于可能与道路相关联的建筑物的特征的子类型的道路的类型。 通用建筑模型和特征与基于子类型的道路相关联。 城市模型增加了地标建筑模型，完成了城市模式。

    Power saving when using aggregated packets
    6.
    发明申请
    Power saving when using aggregated packets 有权
    使用聚合数据包时省电

    公开(公告)号：US20060087996A1

    公开(公告)日：2006-04-27

    申请号：US10975767

    申请日：2004-10-27

    申请人： Adrian Stephens

    发明人： Adrian Stephens

    IPC分类号： H04L1/00 ,  H04J1/16 ,  H04J3/14 ,  H04L12/26

    CPC分类号： H04L45/00 ,  H04L12/18 ,  H04W52/286

    摘要： In a communications packet directed to multiple addresses and having a directory of the addresses in order of transmission, a device receiving the packet may use the directory to help determine when the last frame in which the device has an interest is received, and then enter a low power mode for the remainder of the packet reception. The device constructing the packet for transmission may arrange the frames in a manner that promotes overall power savings in the group of addressed devices.

    摘要翻译： 在针对多个地址并以传输顺序具有地址目录的通信分组中，接收分组的设备可以使用该目录来帮助确定何时接收到设备具有兴趣的最后一帧，然后进入 低功耗模式用于数据包接收的其余部分。 构造用于传输的分组的设备可以以促进所寻址设备组中的总体功率节省的方式来布置帧。

    Method for signaling information by modifying modulation constellations
    9.
    发明申请
    Method for signaling information by modifying modulation constellations 有权
    通过修改调制星座信令信息的方法

    公开(公告)号：US20050174927A1

    公开(公告)日：2005-08-11

    申请号：US11018414

    申请日：2004-12-20

    申请人： Adrian Stephens ,  John Sadowsky

    发明人： Adrian Stephens ,  John Sadowsky

    IPC分类号： H04L12/28 ,  H04J11/00

    CPC分类号： H04L27/345 ,  H03M13/255 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/20 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04W84/12

    摘要： Methods and systems for communicating in a wireless network may distinguish different types of packet structures by modifying the phase of a modulation constellation, such as a binary phase shift keying (BPSK) constellation, in a signal field. Receiving devices may identify the type of packet structure associated with a transmission or whether the signal field is present by the phase of the modulation constellation used for mapping for the signal field. In one embodiment, the phase of the modulation constellation may be determined by examining the energy of the I and Q components after Fast Fourier Transform. Various specific embodiments and variations are also disclosed.

    摘要翻译： 在无线网络中进行通信的方法和系统可以通过在信号域中修改诸如二进制相移键控（BPSK）星座的调制星座的相位来区分不同类型的分组结构。 接收设备可以识别与传输相关联的分组结构的类型，或者信号字段是否存在于用于信号字段的映射的调制星座的相位。 在一个实施例中，可以通过检查快速傅里叶变换后的I和Q分量的能量来确定调制星座的相位。 还公开了各种具体实施方案和变体。