公开(公告)号：US20160080161A1

公开(公告)日：2016-03-17

申请号：US14947402

申请日：2015-11-20

申请人： Chung-Ang University-Academy Cooperation Foundation

发明人： Sung Rae Cho ,  Jun Beom Hur ,  Woong Soo Na ,  Jeong Seok Yu ,  Tae Jin Kim ,  Hyoung Chel Bae ,  Yun Seong Lee ,  Ju Ho Lee ,  Zeynep Vatandas

IPC分类号： H04L12/18 ,  H04W8/18

CPC分类号： H04L12/185 ,  H04L12/189 ,  H04W4/06

摘要： A wireless device and method for managing a multicast group within a wireless network are disclosed. The wireless device is included in a first multicast group in which data is directly sent between member devices or data is sent using hopping between the member devices. The wireless device includes a reception unit, a determination unit, and a transmission unit. The reception unit receives a join request for joining a second multicast group from a joining device that attempts to join the second multicast group. The determination unit extracts information about the second multicast group from the join request, and determines whether the second multicast group is identical with the first multicast group based on the information about the second multicast group. The transmission unit forwards the join request to another device or sends a response to the join request to the joining device based on a result of the determination.

摘要翻译： 公开了一种用于管理无线网络内的组播组的无线设备和方法。 无线设备被包括在第一组播组中，其中在成员设备之间直接发送数据，或者使用成员设备之间的跳跃来发送数据。 无线设备包括接收单元，确定单元和传输单元。 接收单元从尝试加入第二组播组的加入设备接收加入第二组播组的加入请求。 确定单元从加入请求中提取关于第二多播组的信息，并且基于关于第二多播组的信息来确定第二多播组是否与第一多播组相同。 发送单元将加入请求转发到另一设备，或者基于确定的结果向加入设备发送对加入请求的响应。

公开(公告)号：US08023003B2

公开(公告)日：2011-09-20

申请号：US12402605

申请日：2009-03-12

申请人： Joon-Ki Paik ,  Kyoung-Ju Park ,  In-Ho Paek

发明人： Joon-Ki Paik ,  Kyoung-Ju Park ,  In-Ho Paek

IPC分类号： H04N5/228 ,  H04N7/00 ,  G06K9/32

CPC分类号： G01S3/7864 ,  G06T3/4038 ,  H04N5/23238

摘要： Provided are an apparatus and method for generating panorama images and an apparatus and method for tracking an object using the same. The apparatus for generating panorama images estimates regional motion vectors with respect to respective lower regions set in an image frame, determines a frame motion vector by using the regional motion vectors based on a codebook storing sets of normalized regional motion vectors corresponding to a camera's motion and then accumulates motion mediating variables computed with respect to respective continuous image frames to determine an overlapping region, and matches the overlapping regions to generate a panorama image.

摘要翻译： 提供了一种用于产生全景图像的装置和方法，以及用于跟踪使用该图像的对象的装置和方法。 用于生成全景图像的装置估计相对于在图像帧中设置的相应较低区域的区域运动矢量，通过使用区域运动矢量来确定帧运动矢量，所述区域运动矢量基于存储与相机运动对应的归一化区域运动矢量集合的码本， 然后累积关于相应连续图像帧计算的运动中介变量以确定重叠区域，并匹配重叠区域以生成全景图像。

公开(公告)号：US10122540B2

公开(公告)日：2018-11-06

申请号：US14947402

申请日：2015-11-20

申请人： Chung-Ang University-Academy Cooperation Foundation

发明人： Sung Rae Cho ,  Jun Beom Hur ,  Woong Soo Na ,  Jeong Seok Yu ,  Tae Jin Kim ,  Hyoung Chel Bae ,  Yun Seong Lee ,  Ju Ho Lee ,  Zeynep Vatandas

IPC分类号： H04L12/18 ,  H04W4/06

摘要： A wireless device and method for managing a multicast group within a wireless network are disclosed. The wireless device is included in a first multicast group in which data is directly sent between member devices or data is sent using hopping between the member devices. The wireless device includes a reception unit, a determination unit, and a transmission unit. The reception unit receives a join request for joining a second multicast group from a joining device that attempts to join the second multicast group. The determination unit extracts information about the second multicast group from the join request, and determines whether the second multicast group is identical with the first multicast group based on the information about the second multicast group. The transmission unit forwards the join request to another device or sends a response to the join request to the joining device based on a result of the determination.

公开(公告)号：US08138957B2

公开(公告)日：2012-03-20

申请号：US12626565

申请日：2009-11-25

申请人： Kwang-Hyun Baek ,  Hong Chang Yeoh ,  Jae-Hun Jung ,  Yun-Hwan Jung

发明人： Kwang-Hyun Baek ,  Hong Chang Yeoh ,  Jae-Hun Jung ,  Yun-Hwan Jung

IPC分类号： H03M1/66

CPC分类号： G06F1/022 ,  H03M1/664 ,  H03M1/687

摘要： A direct digital frequency synthesizer and a synthesizing method thereof. The direct digital frequency synthesizer uses a hybrid digital to analog converter, which matches output data of a phase accumulator to a sine wave amplitude using a hybrid DAC, including a non-linear DAC and a linear DAC. The non-linear DAC outputs a direct base point current using some bits of output data of a phase accumulator, causing the linear DAC to output a gradient current based on gradient information generated using other bits of the output data of the phase accumulator. These currents are summed for the analog output.

摘要翻译： 一种直接数字频率合成器及其合成方法。 直接数字频率合成器使用混合数模转换器，其使用包括非线性DAC和线性DAC的混合DAC来将相位累加器的输出数据与正弦波幅度相匹配。 非线性DAC使用相位累加器的输出数据的一些位输出直接基点电流，使得线性DAC基于使用相位累加器的输出数据的其他位产生的梯度信息来输出梯度电流。 这些电流相加于模拟输出。

公开(公告)号：US20120038526A1

公开(公告)日：2012-02-16

申请号：US13115317

申请日：2011-05-25

申请人： Sungjoon LIM ,  Seunghee BAEK ,  Yong Soo CHO

发明人： Sungjoon LIM ,  Seunghee BAEK ,  Yong Soo CHO

IPC分类号： H01Q1/32 ,  H01Q1/38

CPC分类号： H01Q1/38 ,  H01Q1/3275 ,  H01Q9/0407

摘要： A low-profile antenna is provided. A laminated substrate is formed into a structure in which a plurality of substrates having different permittivities are stacked, and a radiator consists of a plurality of unit patches disposed on an upper surface of the laminated substrate and generates an electric field perpendicular to the upper surface of the laminated substrate. Ground vias are formed from the respective unit patches to a ground plane disposed on a lower surface of the laminated substrate through the substrates constituting the laminated substrate. In the low-profile antenna, the radiator consisting of the plurality of patches is disposed on the upper surface of the laminated substrate having a structure in which the plurality of substrates are stacked to generate a magnetic loop around the patches, so that vertical polarized signals can be received due to a magnetic field perpendicular to the upper surface of the laminated substrate.

摘要翻译： 提供了一个低调的天线。 层叠基板形成为层叠有不同介电常数的多个基板的结构，散热器由设置在层叠基板的上表面上的多个单位块构成，并且产生垂直于层叠基板的上表面的电场 层压基板。 通过构成层叠基板的基板，将各通孔形成为通过配置在层叠基板的下表面的接地面。 在低剖面天线中，由多个贴片构成的散热器设置在层叠基板的上表面上，该叠层基板的上表面具有堆叠多个基板的结构，以在贴片周围产生磁环，使得垂直极化信号 可以由于垂直于层压基板的上表面的磁场而被接收。