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    Region-based image archiving and retrieving system
    21.
    发明授权
    Region-based image archiving and retrieving system 有权
    基于区域的图像归档和检索系统

    公开(公告)号：US06502105B1

    公开(公告)日：2002-12-31

    申请号：US09232896

    申请日：1999-01-15

    申请人： Yong Yan ,  Cedric Y. Caron ,  Kiran Challapali

    发明人： Yong Yan ,  Cedric Y. Caron ,  Kiran Challapali

    IPC分类号： G06F1700

    CPC分类号： G06F17/30259 ,  Y10S707/99945 ,  Y10S707/99948

    摘要： The system disclosed herein builds a database of image-related data by inputting a plurality of images, and for each image: dividing the image into N1 (N1≧1) regions which are substantially homogenous with respect to at least one attribute of the image, generating a graph based on M1 (M1≧1) of the N1 regions, and storing data for the graph in the database. The database may then be used to determine whether a query image is similar to one or more of the plurality of images. To this end, the system inputs the query image, and divides the query image into N2 (N2≧1) regions which are substantially homogenous with respect to at least one attribute of the query image. The system then generates a graph based on M2 (M2≧1) of the N2 regions, and compares the generated graph to other graphs in the database that correspond to the plurality of images. Thereafter, an image is retrieved from memory that has a graph that is substantially similar to the generated graph.

    摘要翻译： 本文所公开的系统通过输入多个图像构建图像相关数据的数据库，并且对于每个图像：将图像分割成相对于图像的至少一个属性基本均匀的N1（N1> = 1）个区域 生成基于N1区域的M1（M1> = 1）的图形，并将图形的数据存储在数据库中。 然后可以使用数据库来确定查询图像是否类似于多个图像中的一个或多个。 为此，系统输入查询图像，并将查询图像划分成相对于查询图像的至少一个属性基本均匀的N2（N2> = 1）区域。 然后，该系统基于N2区域的M2（M2> = 1）生成图形，并且将生成的图形与数据库中对应于多个图像的其他图形进行比较。 此后，从具有基本上类似于生成的图形的图形的存储器中检索图像。

    COGNITIVE RADIO DEVICE AND METHOD FOR DETERMINING CHANNEL OCCUPANCY
    24.
    发明申请
    COGNITIVE RADIO DEVICE AND METHOD FOR DETERMINING CHANNEL OCCUPANCY 失效
    认知无线电设备及确定通道业务的方法

    公开(公告)号：US20110170512A1

    公开(公告)日：2011-07-14

    申请号：US13119309

    申请日：2009-09-03

    申请人： Monisha Ghosh ,  Vasanth Gaddam ,  Kiran Challapali

    发明人： Monisha Ghosh ,  Vasanth Gaddam ,  Kiran Challapali

    IPC分类号： H04W72/04

    CPC分类号： H04W72/04 ,  H04W16/14 ,  H04W76/00 ,  H04W88/08

    摘要： A detector module (100) is operable in a cognitive radio device and capable of determining channel occupancy. The detector module comprises a sensor (110) for sensing incumbent signals at a variable sensing threshold, wherein the sensor generates a first occupancy indication indicating whether the channel includes an incumbent signal having a sensing metric above the variable sensing threshold; a geo-location unit (120) for generating a second occupancy indication based on a location of the detector module; and a decision unit (130) for generating an occupancy decision based on both the first occupancy indication and the second occupancy indication.

    摘要翻译： 检测器模块（100）可在认知无线电设备中操作并且能够确定信道占用。 检测器模块包括用于感测在可变感测阈值处的现有信号的传感器（110），其中传感器产生第一占用指示，指示信道是否包括具有高于可变感测阈值的感测度量的在线信号; 地理位置单元（120），用于基于所述检测器模块的位置产生第二占用指示; 以及用于基于所述第一占用指示和所述第二占用指示两者来生成占用决定的决定单元（130）。

    Method and Device Using Randomized Hough Transform for Detecting Radio Systems with Periodic Emission Pattern
    28.
    发明申请
    Method and Device Using Randomized Hough Transform for Detecting Radio Systems with Periodic Emission Pattern 审中-公开
    使用随机霍夫变换检测具有周期性发射模式的无线电系统的方法和装置

    公开(公告)号：US20080253350A1

    公开(公告)日：2008-10-16

    申请号：US10597388

    申请日：2005-01-28

    申请人： Kiran Challapali ,  Stefan Mangold

    发明人： Kiran Challapali ,  Stefan Mangold

    IPC分类号： H04J3/00 ,  G06K9/36

    CPC分类号： G01S7/021

    摘要： The invention includes a method and device for identifying opportunities to transmit in a radio network. The method and device listen for a first, second, and third period of time to detect first, second, and third busy slots. A processor recognizes a sequence of the first, second, and third busy slots as a function of time, performs a Randomized Hough Transform on the sequence, generates a histogram based on the Randomized Hough Transform, identifies peaks in the histogram, determines whether the peaks correspond to a known radar, and identifies an opportunity to transmit.

    摘要翻译： 本发明包括用于识别在无线电网络中传送的机会的方法和装置。 方法和设备监听第一，第二和第三时间段以检测第一，第二和第三忙时隙。 处理器根据时间来识别第一，第二和第三繁忙时隙的序列，对序列执行随机化霍夫变换，基于随机霍夫变换产生直方图，识别直方图中的峰，确定峰的峰值 对应于已知的雷达，并识别发送的机会。

    Method for Improving Self-Coexistence of Wireless Communication Networks
    29.
    发明申请
    Method for Improving Self-Coexistence of Wireless Communication Networks 有权
    改善无线通信网络自身共存的方法

    公开(公告)号：US20080253341A1

    公开(公告)日：2008-10-16

    申请号：US12066860

    申请日：2006-09-16

    申请人： Carlos Cordeiro ,  Kiran Challapali

    发明人： Carlos Cordeiro ,  Kiran Challapali

    IPC分类号： H04Q7/24

    CPC分类号： H04W16/14 ,  H04W72/1257

    摘要： Self-coexistence of first and second wireless communication networks (200) is improved by transmitting a coexistence beacon from a first station (210, 220) of the first wireless communication network (200) to a first station (210, 220) of the second wireless communication network (200. The coexistence beacon includes information about a traffic reservation of the first station (210, 220) of the first wireless communication network (200). The first station (210, 220) of the second wireless communication network (200) may then use this information in a variety of ways to reduce data collisions between the two networks (200). It can communicate this information to a base station (210) of the second wireless communication network (200). The base station (210) of the second wireless communication network (200) can then use this information to more efficiently allocate frequency channels and/or time slots for future traffic reservations of the first station (220) of the second wireless communication network (200).

    摘要翻译： 通过将来自第一无线通信网络（200）的第一站（210,220）的共存信标发送到第二无线通信网络（200）的第一站（210,220）来改善第一和第二无线通信网络（200）的自共存 无线通信网络（200）。共存信标包括关于第一无线通信网络（200）的第一站（210,220）的业务预留的信息，第二无线通信网络（200）的第一站（210,220） ）可以以各种方式使用该信息来减少两个网络（200）之间的数据冲突，它可以将该信息传送到第二无线通信网络（200）的基站（210），基站（210） 然后可以使用该信息来更有效地分配用于第一站（220）的未来业务预留的频率信道和/或时隙， 的第二无线通信网络（200）。

    Method of Clustering Devices in Wireless Communication Network
    30.
    发明申请
    Method of Clustering Devices in Wireless Communication Network 审中-公开
    无线通信网络中集群设备的方法

    公开(公告)号：US20080219201A1

    公开(公告)日：2008-09-11

    申请号：US12066882

    申请日：2005-09-16

    申请人： Kiran Challapali ,  Dagnachew Birru ,  Carlos Cordeiro

    发明人： Kiran Challapali ,  Dagnachew Birru ,  Carlos Cordeiro

    IPC分类号： H04J15/00

    CPC分类号： H04W24/10 ,  H04W36/30 ,  H04W74/00 ,  H04W80/00

    摘要： In a wireless communication network (200) comprising a base station (210) and a plurality of remote terminals (220), the plurality of remote terminals (220) are divided into a plurality of clusters (230) for communication with the base station (210), and each of the remote terminals (220) is assigned to a cluster (230) based on at least one characteristic, measured by one or more of the remote terminals (220), of one or more external signals transmitted by one or more external terrestrial transmitters (250) not associated with the communication network (200). Accordingly: a parameter of a communication between the base station (210) and each remote terminal (220) may be selected according to the cluster (230) to which each remote terminal (220) belongs; remote terminals (220) within a cluster (230) may be enabled to communicate directly with each other; and/or remote terminals (220) may be selected to perform frequency spectrum profile measurements of the frequency band used by the communication network (200) according to the clusters (230) to which they are assigned.

    摘要翻译： 在包括基站（210）和多个远程终端（220）的无线通信网络（200）中，所述多个远程终端（220）被划分成多个群集（230），用于与基站 210），并且基于由一个或多个远程终端（220）测量的由一个或多个远程终端（220）发送的一个或多个外部信号的至少一个特征，将每个远程终端（220）分配给群集（230） 与通信网络（200）不相关联的更多的外部地面发射机（250）。 因此，可以根据每个远程终端（220）所属的集群（230）来选择基站（210）和每个远程终端（220）之间的通信的参数; 可以使群集（230）内的远程终端（220）能够彼此直接通信; 和/或远程终端（220）可以被选择来执行由通信网络（200）根据它们被分配到的群集（230）使用的频带的频谱分布测量。