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1. 发明授权

US08712153B2 Subpixel-based image down-sampling 失效
标题翻译：基于子像素的图像下采样
公开(公告)号：US08712153B2
公开(公告)日：2014-04-29
申请号：US13043703
申请日：2011-03-09
申请人： Oscar Chi Lim Au , Lu Fang
发明人： Oscar Chi Lim Au , Lu Fang
IPC分类号： G06K9/34
CPC分类号： G06T3/4023
摘要： Systems, methods, and apparatus for sampling images using minimum mean square error subpixel-based down-sampling (MMSE-SD) are presented herein. A partition component can receive a first array of pixels, and divide the first array of pixels into two-dimensional (2-D) blocks of pixels. Further, a sampling component can diagonally down-sample subpixels of a block of the 2-D blocks, and generate a second array of pixels based on the down-sampled subpixels. The sampling component can alternately sample subpixels of adjacent pixels of the block in a diagonal direction, and generate the second array of pixels based on the subpixels. A reconstruction component can create a virtual image based on, at least in part, the second array of pixels. A MMSE-SD component can determine an optimal low resolution image based on, at least in part, respective color components of the virtual image and a high resolution image associated with the first array of pixels.
摘要翻译：本文给出了使用最小均方误差子像素的下采样（MMSE-SD）采样图像的系统，方法和装置。分区组件可以接收第一像素阵列，并且将第一像素阵列划分为二维（2-D）像素块。此外，采样分量可以对角地对2-D块的块的子像素进行下采样，并且基于下采样子像素生成第二像素阵列。采样分量可以交替地在对角线方向上对块的相邻像素的子像素进行采样，并且基于子像素生成第二像素阵列。至少部分地基于第二像素阵列来创建虚拟图像。 MMSE-SD组件可以至少部分地基于虚拟图像的相应颜色分量和与第一像素阵列相关联的高分辨率图像来确定最佳低分辨率图像。

2. 发明授权

US08682094B2 Adaptive subpixel-based downsampling and filtering using edge detection 失效
标题翻译：使用边缘检测的基于子像素的自适应下采样和滤波
公开(公告)号：US08682094B2
公开(公告)日：2014-03-25
申请号：US12778584
申请日：2010-05-12
申请人： Oscar Chi Lim Au , Lu Fang
发明人： Oscar Chi Lim Au , Lu Fang
IPC分类号： G06K9/40 , G06K9/32 , G06K9/48
CPC分类号： G09G5/026 , G09G2360/02
摘要： Systems, methods, and apparatus for sampling images using edge detection are presented herein. A gradient component can calculate at least one gradient of a luminance of a block of pixels based on at least one direction; and select a minimum gradient of the at least one gradient of the luminance. Further, a direction component can determine a direction of the block based on a direction of the minimum gradient of the at least one gradient of the luminance. Moreover, a sampling component can alternately select subpixels of the block based on the direction of the block. In addition, a filter component can calculate at least one gradient of a color of a subpixel of the subpixels based on the at least one direction; determine a direction of the subpixel based on the at least one gradient of the color; and filter the subpixels based on the direction of the subpixel.
摘要翻译：本文给出了使用边缘检测对图像采样的系统，方法和装置。梯度分量可以基于至少一个方向计算像素块的亮度的至少一个梯度; 并选择亮度的至少一个梯度的最小梯度。此外，方向分量可以基于亮度的至少一个梯度的最小梯度的方向来确定块的方向。此外，采样分量可以基于块的方向交替地选择块的子像素。此外，滤波器组件可以基于至少一个方向计算子像素的子像素的颜色的至少一个梯度; 基于颜色的至少一个梯度来确定子像素的方向; 并且基于子像素的方向对子像素进行滤波。

3. 发明授权

US08493245B2 Determination of long binary sequences having low autocorrelation functions 失效
标题翻译：确定具有低自相关函数的长二进制序列
公开(公告)号：US08493245B2
公开(公告)日：2013-07-23
申请号：US13208202
申请日：2011-08-11
申请人： Ke Lin Du , Wei Hsiang Wu , Wai Ho Mow
发明人： Ke Lin Du , Wei Hsiang Wu , Wai Ho Mow
IPC分类号： H03M7/00
CPC分类号： G06N3/126
摘要： Systems, methods, and computer-readable media for determining long binary sequences having low autocorrelation functions using evolutionary processes are disclosed. Biphase sequences are found with low peak sidelobe values meeting a predetermined criterion, e.g., threshold low auto-correlation function, including application of semidefinite programming in connection with determining an initial population, and evolving the population with an evolutionary algorithm to bits of the biphase sequences including bit flipping. The found biphase sequences can be communicated to a variety of applications, including wireless communications technologies.
摘要翻译：公开了用于使用进化过程确定具有低自相关函数的长二进制序列的系统，方法和计算机可读介质。发现双相序列具有满足预定标准的低峰值旁瓣值，例如阈值低自相关函数，包括与确定初始群体相关的半定义编程的应用，以及使用进化算法将群体演化为双相序列的位包括位翻转。所发现的双相序列可以传送到各种应用，包括无线通信技术。

4. 发明授权

US08774111B2 Fair and efficient channel allocation and spectrum sensing for cognitive OFDMA networks 失效
标题翻译：用于认知OFDMA网络的公平有效的信道分配和频谱感知
公开(公告)号：US08774111B2
公开(公告)日：2014-07-08
申请号：US13342839
申请日：2012-01-03
申请人： Chunhua Sun , Wei Chen , Khaled Ben Letaief
发明人： Chunhua Sun , Wei Chen , Khaled Ben Letaief
IPC分类号： H04W4/00
CPC分类号： H04W24/10 , H04W72/08
摘要： Systems, methods, and computer-readable media for a fair and efficient channel allocation and spectrum sensing for cognitive transmission in wireless networks are presented herein. A base station can send a cognitive user device a request to sense an idle channel associated with a primary network, and in response to receiving a willingness indicator or an attribute from the cognitive user device and/or a number of idle channels associated with the primary network sensed by the cognitive user device, the base station can assign the cognitive user device to transmit data on the idle channel associated with the primary network.
摘要翻译：本文介绍了用于无线网络中认知传输的公平有效的信道分配和频谱感测的系统，方法和计算机可读介质。基站可以向认知用户设备发送感知与主网络相关联的空闲信道的请求，并且响应于接收到来自认知用户设备的意愿指示符或属性和/或与主要网络相关联的多个空闲信道网络由认知用户设备感测到，基站可以分配认知用户设备在与主网络相关联的空闲信道上传输数据。

5. 发明授权

US08706041B2 Multiple-input, multiple-output cognitive radio 失效
标题翻译：多输入多输出认知无线电
公开(公告)号：US08706041B2
公开(公告)日：2014-04-22
申请号：US13174555
申请日：2011-06-30
申请人： Daniel Perez Palomar , Gesualdo Scutari
发明人： Daniel Perez Palomar , Gesualdo Scutari
IPC分类号： H04B1/00
CPC分类号： H04W16/14 , H04W72/02 , H04W72/082
摘要： A wireless communication system and constituent wireless communication devices are provided to implement a distributed, cognitive radio approach to spectrum sharing. Under the distributed approach, individual wireless communication devices self-enforce negotiated agreements on usage of an available spectrum without intervention from a centralized authority. Particularly, individual wireless communication devices are configured to enhance information rates of their respective transmissions under predetermined constraints. The predetermined constraints can include transmit power constraints (e.g., a maximum power available to the wireless communication devices), or interference constraints (e.g., constraints on the amount, direction, and/or quality of interference generated by transmissions).
摘要翻译：提供无线通信系统和组成的无线通信设备以实现分布式认知无线电方法来进行频谱共享。在分布式方法下，个人无线通信设备自动执行关于使用可用频谱的谈判协议，而无需中央权限的干预。特别地，单个无线通信设备被配置为在预定的约束下增强其各自传输的信息速率。预定的约束可以包括发射功率约束（例如，无线通信设备可用的最大功率）或干扰约束（例如，对传输产生的干扰的量，方向和/或质量的限制）。

6. 发明授权

US09077669B2 Efficient lookup methods for ternary content addressable memory and associated devices and systems 有权
标题翻译：三元内容可寻址内存和相关设备和系统的高效查找方法
公开(公告)号：US09077669B2
公开(公告)日：2015-07-07
申请号：US13159470
申请日：2011-06-14
申请人： Mounir Hamdi , Dong Lin
发明人： Mounir Hamdi , Dong Lin
IPC分类号： H04L12/28 , H04L12/743 , H04L12/741 , G11C15/00
CPC分类号： H04L45/7453 , G11C15/00 , H04L45/54
摘要： Lookup techniques are described, which can achieve improvements in energy efficiency, speed, and cost, of IP address lookup, for example, in devices and systems employing ternary content addressable memory (TCAM). The disclosed subject matter describes dividing a route table into several sub-tries with disjoint range boundaries. In addition, the disclosed subject matter describes storing sub-tries of a route table between a TCAM and a faster and less costly memory. The disclosed details enable various refinements and modifications according to system design and tradeoff considerations.
摘要翻译：描述了查找技术，其可以实现IP地址查找的能量效率，速度和成本的改进，例如在采用三元内容可寻址存储器（TCAM）的设备和系统中。所公开的主题描述了将路由表划分成具有不相交范围边界的几个子尝试。此外，所公开的主题描述了在TCAM和更快且更便宜的存储器之间存储路由表的子尝试。所公开的细节可以根据系统设计和权衡考虑进行各种改进和修改。

7. 发明授权

US09001914B2 Dynamic interference alignment for partially connected quasi-static MIMO interference channel 有权
标题翻译：部分连接的准静态MIMO干扰信道的动态干扰对齐
公开(公告)号：US09001914B2
公开(公告)日：2015-04-07
申请号：US13247629
申请日：2011-09-28
申请人： Liangzhong Ruan , Vincent Kin Nang Lau
发明人： Liangzhong Ruan , Vincent Kin Nang Lau
IPC分类号： H04B7/02 , H04B7/06 , H04B7/08 , H04L25/03 , H04B1/10 , H04B15/00 , H04B7/04 , H04B7/155 , H04W72/08 , H04W52/24
CPC分类号： H04B7/0617 , H04B1/1081 , H04B7/02 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04B7/0456 , H04B7/0478 , H04B7/0848 , H04B7/15592 , H04B15/00 , H04L25/03891 , H04W52/244 , H04W72/082
摘要： Systems, methods, and apparatus are described that employ specially designed interference patterns to build an in-band side channel without degrading the effective throughput of the main channel. Transmitter and receiver pairs implement a two-stage dynamic interference mitigation scheme based on the partial connections in limited dimension MIMO interference channels. The first stage determines the stream assignments and the subspace constraints for beamforming vectors and zero-forcing vectors based on the partially connected topology such as the path loss, shadowing and spatial correlation. The second stage determines the beamforming vectors and the zero-forcing vectors based on the instantaneous channel state information over the subspaces obtained from the first stage. In an aspect, a controller device implements the first and second stage and assigns the transmitter and receiver pairs to perform interference alignment using the stream assignments and beamforming and zero-forcing vectors respectively.
摘要翻译：描述了采用专门设计的干扰模式来构建带内侧信道而不降低主信道的有效吞吐量的系统，方法和装置。发射机和接收机对基于有限维度MIMO干扰信道中的部分连接实现两阶段动态干扰减轻方案。第一阶段基于部分连接的拓扑（如路径损耗，阴影和空间相关性）来确定波束成形向量和零强制向量的流分配和子空间约束。第二级基于从第一级获得的子空间上的瞬时信道状态信息来确定波束成形向量和迫零向量。在一个方面，控制器设备实现第一和第二阶段，并且分配发射机和接收机对来分别使用流分配和波束形成和迫零向量来执行干扰对准。

8. 发明授权

US08811514B2 Partial interference alignment for K-user MIMO interference channels 有权
标题翻译： K用户MIMO干扰信道的部分干扰对齐
公开(公告)号：US08811514B2
公开(公告)日：2014-08-19
申请号：US13277981
申请日：2011-10-20
申请人： Huang Huang , Vincent Kin Nang Lau
发明人： Huang Huang , Vincent Kin Nang Lau
IPC分类号： H04B7/02
CPC分类号： H04B7/0452 , H04B7/0473 , H04B7/0486 , H04L5/0023 , H04L27/34
摘要： Systems, methods, and apparatus are described that employ a partial interference alignment scheme in conjunction with an interference detection scheme to mitigate interference in quasi-static multiple input multiple output (MIMO) channels. In an aspect, sets of transmitter and receiver pairs are determined based on feasibility of alignment of the transmitters at the receivers of the sets in accordance with an interference alignment scheme and path loss associated with signal transmissions between the transmitter and receiver pairs, wherein the sets include different alignment assignments of the respective transmitters at the respective receivers of the sets. The alignment assignments can include different numbers of the transmitters aligned at the receivers of the sets. A set is then selected from the sets that contributes to an interference profile at the receivers that facilitates interference detection at the receivers. Interference detection at a receiver is further simplified using semi-definite relaxation techniques.
摘要翻译：描述了采用部分干扰对准方案结合干扰检测方案来减轻准静态多输入多输出（MIMO）信道中的干扰的系统，方法和装置。在一个方面，发射机和接收机对的集合是基于根据与发射机和接收机对之间的信号传输相关联的干扰对准方案和路径损耗的集合的接收机处的发射机的对准的可行性来确定的，其中，包括在各集合的相应接收机处的相应发射机的不同对准分配。对准分配可以包括在集合的接收器处对齐的不同数量的发射机。然后从有助于在接收机处的干扰检测的接收机处的干扰简档的组中选择一组。使用半定义松弛技术进一步简化接收机处的干扰检测。

9. 发明授权

US09144083B2 Cooperative sensing scheduling for energy-efficient cognitive radio networks 有权
标题翻译：节能认知无线电网络的合作传感调度
公开(公告)号：US09144083B2
公开(公告)日：2015-09-22
申请号：US13114451
申请日：2011-05-24
申请人： Tengyi Zhang , Danny Hin Kwok Tsang
发明人： Tengyi Zhang , Danny Hin Kwok Tsang
IPC分类号： H04W72/12 , H04L1/16
CPC分类号： H04W72/1215 , H04L1/1607 , Y02D70/1224 , Y02D70/1242 , Y02D70/142
摘要： Cooperative sensing scheduling and parameter designs are described, which can achieve improvements in energy efficiency in cognitive radio networks, for example. In addition, the disclosed subject matter describes an objective or reward function or policy related to energy efficiency and considerations such as channel assignments sensing time that can maximize the objective function. The disclosed details enable various refinements and modifications according to system design and tradeoff considerations.
摘要翻译：描述了合作传感调度和参数设计，其可以在认知无线电网络中实现能量效率的改进。此外，所公开的主题描述了与能量效率和考虑事项相关的客观或奖励功能或策略，例如可以使目标功能最大化的频道分配感测时间。所公开的细节可以根据系统设计和权衡考虑进行各种改进和修改。

10. 发明授权

US08565134B2 Sleep mode selection employing a semi-markov decision process 失效
标题翻译：休眠模式选择采用半马尔可夫决策过程
公开(公告)号：US08565134B2
公开(公告)日：2013-10-22
申请号：US12958185
申请日：2010-12-01
申请人： Lei Kong , Ka Wai Wong , Danny Hin Kwok Tsang
发明人： Lei Kong , Ka Wai Wong , Danny Hin Kwok Tsang
IPC分类号： G04C17/00
CPC分类号： H04W52/0216 , Y02D70/164 , Y02D70/24
摘要： The disclosed subject matter relates to energy efficiency in mobile devices associated with a wireless communications environment. Power Saving Classes (PSCs) aim to reduce the power consumption of mobile devices based on the different types of traffic. Optimizing sleep mode selection schemes so as to maximize the energy efficiency while providing a QoS guarantee can be accomplished with optimization of a theoretical framework based on the semi-Markov Decision Process along with a performance evaluation on the sleep mode operation. A novel Policy Optimization algorithm is capable of finding optimized policies for a selection of different PSCs.
摘要翻译：所公开的主题涉及与无线通信环境相关联的移动设备中的能量效率。节电类（PSCs）旨在根据不同类型的流量降低移动设备的功耗。优化睡眠模式选择方案以便提供QoS保证的能量效率最大化可以通过基于半马尔可夫决策过程的理论框架的优化以及对睡眠模式操作的性能评估来实现。一种新颖的策略优化算法能够针对不同PSC的选择找到优化的策略。

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