公开(公告)号：US20170272775A1

公开(公告)日：2017-09-21

申请号：US15301037

申请日：2015-11-19

Applicant: Hua Zhong University of Science Technology

Inventor： Pengcheng WANG ,  Wenbin JIANG ,  Xiaofei LIAO ,  Hai JIN

IPC: H04N19/533 ,  H04N19/54

CPC classification number: H04N19/533 ,  H04N19/117 ,  H04N19/54 ,  H04N19/56 ,  H04N19/82

Abstract: In at least one embodiment, a motion estimation method may include dividing a first video frame to be estimated into a plurality of macroblocks, in which each of the macroblocks includes a plurality of sub-blocks. The method may further include determining a sampling pattern for each sub-block based on visual data of the sub-block, and determining a prediction motion vector for each sub-block by performing a pre-search based on the sampling pattern of the sub-block. The method may further include determining a search template for each macroblock based on the prediction motion vector of each sub-block within the macroblock, and determining a prediction motion vector for each macroblock by performing a secondary search based on the search template of the macroblock.

公开(公告)号：US09430424B2

公开(公告)日：2016-08-30

申请号：US14422558

申请日：2013-07-09

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Hai Jin ,  Pei Duan ,  Deqing Zou

IPC: G06F13/00 ,  G06F13/32 ,  G06F9/455 ,  G06F11/30 ,  G06F13/14 ,  H04L29/06

CPC classification number: G06F13/32 ,  G06F9/45533 ,  G06F11/3048 ,  G06F11/3068 ,  G06F13/14 ,  G06F2009/4557 ,  H04L63/08 ,  H04L69/08 ,  H04L69/16

Abstract: To provide access to USB devices coupled to a client computing device for a user of virtual machine executing on a server, the server, in some examples, may be configured to pack USB request blocks into IP data packets and transmit the IP data packets over a network. Responsive to receiving the IP data packets, the client computing device may extract the USB request blocks from the IP data packets and provide the access to the USB devices for the virtual machine user.

Abstract translation: 为了提供访问耦合到用于在服务器上执行的虚拟机的用户的客户端计算设备的USB设备，在一些示例中，服务器可以被配置为将USB请求块打包成IP数据分组，并通过一个 网络。 响应于接收IP数据分组，客户端计算设备可以从IP数据分组中提取USB请求块，并为虚拟机用户提供对USB设备的访问。

公开(公告)号：US09934281B2

公开(公告)日：2018-04-03

申请号：US15126248

申请日：2015-10-10

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Xia Xie ,  Hai Jin ,  Shuwen Luo

IPC: G06F17/30

CPC classification number: G06F17/30498 ,  G06F17/30345 ,  G06F17/30979

Abstract: Technologies are generally described for methods and systems to join a first source dataset with a second source dataset. In an example, a processor may receive a request to join the first and second source datasets based on a condition. The processor may determine a first range of attribute values from the first source dataset, and a second range of attribute values from the second source dataset. The processor may produce a filtered dataset based on a comparison of the first and second ranges. A map unit may transform the filtered dataset and the second source dataset into first and second mapped datasets based on the condition. A reduce unit may transform the first and second mapped datasets into first and second reduced datasets based on the condition. A combiner unit may combine the first and second reduced datasets to join the first and second source datasets.

公开(公告)号：US09772881B2

公开(公告)日：2017-09-26

申请号：US14647959

申请日：2013-10-29

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Hai Jin ,  Xuerong Guo ,  Song Wu ,  Xuanhua Shi ,  Hanfeng Qin

IPC: G06F9/46 ,  G06F9/50

CPC classification number: G06F9/5016 ,  G06F9/5011 ,  G06F9/5077

Abstract: In some examples, in a virtual environment, multiple virtual machines may be executing on a physical computing node. Each of the multiple virtual machines may host one or more applications, each of which utilizes at least a portion of a hardware resource of the physical computing node. A hypervisor of the virtual environment may be configured to recognize utilization patterns of the applications and allocate portions of the hardware resource to each of the applications in accordance with respective utilization patterns of the applications.

公开(公告)号：US09275240B2

公开(公告)日：2016-03-01

申请号：US14422591

申请日：2013-07-09

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Hai Jin ,  Deqing Zou ,  Weiqi Dai ,  Fengwei Wang

IPC: G06F7/04 ,  G06F21/60 ,  G06F9/455 ,  G06F9/46 ,  G06F21/00

CPC classification number: G06F21/60 ,  G06F9/455 ,  G06F9/45558 ,  G06F9/46 ,  G06F9/461 ,  G06F21/00 ,  G06F2009/45587

Abstract: In at least one embodiment, a method for secured rollback of a virtual Trusted Platform Module (vTPM) that renders available functionalities offered by Trusted Platform Module (TPM) on a computer to a virtual machine (VM) is provided. The method includes taking and saving a snapshot of current state of a virtual machine as well as a snapshot of the corresponding vTPM, upon receiving a request for taking a snapshot of the virtual machine. The method further includes converting the snapshots into the current state of the virtual machine and the current state of the vTPM, respectively, upon receiving a request to roll back the virtual machine.

Abstract translation: 在至少一个实施例中，提供了一种用于将计算机上的可信平台模块（TPM）提供给虚拟机（VM）的可用功能呈现给虚拟可信平台模块（vTPM）的安全回滚的方法。 该方法包括在接收到拍摄虚拟机的快照的请求时，采集并保存虚拟机当前状态的快照以及对应的vTPM的快照。 该方法还包括在接收到回滚虚拟机的请求时，将快照分别转换成虚拟机的当前状态和vTPM的当前状态。

公开(公告)号：US20150234453A1

公开(公告)日：2015-08-20

申请号：US14422560

申请日：2013-07-09

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Hai Jin ,  Xiaofei Liao ,  Kai Chen ,  Dong Liang

IPC: G06F3/00 ,  G06F9/455

CPC classification number: G06F3/00 ,  G06F9/45533 ,  G06F9/45558 ,  G06F2009/4557

Abstract: In some examples, when a user requests a media device to play media data generated on a virtual machine or receive media data generated by the media device, the media data may be transmitted by sharing physical memory pages among different virtual machines and other virtual components.

Abstract translation: 在一些示例中，当用户请求媒体设备播放在虚拟机上生成的媒体数据或接收由媒体设备生成的媒体数据时，可以通过在不同的虚拟机和其他虚拟组件之间共享物理存储器页来传送媒体数据。

公开(公告)号：US20170344478A1

公开(公告)日：2017-11-30

申请号：US15537274

申请日：2014-12-18

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Dan Feng ,  Binbing Hou ,  Jianxi Chen ,  Lingfang Zeng ,  Wei Tong

IPC: G06F12/0815 ,  G06F9/46 ,  G06F12/02

CPC classification number: G06F12/0815 ,  G06F9/467 ,  G06F11/1471 ,  G06F11/1474 ,  G06F12/0253 ,  G06F12/16 ,  G06F2212/60 ,  G06F2212/621

Abstract: Technologies are generally described herein for storing log records in non-volatile memory. Transaction data may be accessed that is associated with one or more transactions that modify a data storage device. The transaction data may be stored in a cache that is coupled to the data storage device. The log records corresponding to transaction data may also be stood in a non-volatile memory (NVM) that is coupled to the data storage device. Log records may be synchronized with the data storage device.

公开(公告)号：US20170293566A1

公开(公告)日：2017-10-12

申请号：US15508028

申请日：2014-09-09

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Dan Feng ,  Wen Zhou ,  Jingning Liu ,  Wei Tong ,  Yu Hua ,  Shuangwu Zhang

IPC: G06F12/0888 ,  G06F12/0864

CPC classification number: G06F12/0888 ,  G06F12/0246 ,  G06F12/0864 ,  G06F12/0868 ,  G06F12/121 ,  G06F2212/1008 ,  G06F2212/2022 ,  G06F2212/214 ,  G06F2212/60 ,  G06F2212/7202

Abstract: Technologies are generally described herein to detect non-volatile write request sequences. A write request is received to write to a solid-state device that includes the non-volatile memory. A determination is made as to whether the write request is part of a non-volatile write request sequence or is not pan of the non-volatile write request sequence, in response to determining that the write request is part of the non-volatile write request sequence, the write request is associated with the non-volatile write request sequence. In response to determining that the write request is not part of the non-volatile write request sequence, the data associated with the write request is written to a cache that is coupled to the non-volatile memory. The data associated with the non-volatile write request sequences may be written directly to the non-volatile memory.

公开(公告)号：US20160253259A1

公开(公告)日：2016-09-01

申请号：US15032636

申请日：2013-10-29

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Hai JIN ,  Xuanhua SHI ,  Song WU ,  Xin YU

IPC: G06F12/08 ,  G06F12/12 ,  G06F12/10

CPC classification number: G06F12/084 ,  G06F12/0811 ,  G06F12/0891 ,  G06F12/1009 ,  G06F12/1054 ,  G06F12/123 ,  G06F2212/604 ,  G06F2212/653 ,  Y02D10/13

Abstract: A mixed cache is indexed to main memory and page coloring is applied to map main memory to virtual memory. A nursery array and a mature array are indexed to virtual memory. An access to a virtual page from the mixed cache is recorded by determining an index and a tag of an array address based on a virtual address, following the index to corresponding rows in the nursery and the mature arrays, and determining if the tag in the array address matches any tag in the rows. When there is a match to a tag in the rows, an access count in a virtual page entry corresponding to the matched tags is incremented. When there is no match, a virtual page entry in the row in the nursery array is written with the tag in the array address and an access count in the entry is incremented.

Abstract translation: 将混合高速缓存索引到主内存，并应用页面着色将主内存映射到虚拟内存。 托儿所阵列和成熟阵列被索引到虚拟内存。 通过根据托儿所和成熟阵列中的相应行的索引确定基于虚拟地址的数组地址的索引和标签来记录来自混合高速缓存的虚拟页面的访问，以及确定是否在 数组地址匹配行中的任何标记。 当与行中的标签匹配时，对应于匹配标签的虚拟页面条目中的访问计数增加。 当没有匹配时，托盘数组中的行中的虚拟页条目被写入数组地址中的标签，并且条目中的访问计数增加。

公开(公告)号：US20160036882A1

公开(公告)日：2016-02-04

申请号：US14422932

申请日：2013-10-29

Applicant: HUA ZHONG UNIVERSITY OF SCIENCE TECHNOLOGY

Inventor： Hai JIN ,  Long CHEN ,  Ran ZHENG ,  Qin ZHNAG ,  Lei ZHU

IPC: H04L29/06 ,  G06F17/30

CPC classification number: G06T7/2006 ,  G06F9/4843 ,  G06F9/50 ,  G06F9/5044 ,  G06F17/30997 ,  G06K9/46 ,  G06T7/215 ,  G06T7/579 ,  H04L65/602 ,  H04N19/176

Abstract: In some examples, a main computing device may be configured to segment the video stream into multiple video clips processing a video stream that includes multiple frames. Further, the main computing device may be configured to distribute the video clips to multiple computing nodes to extract the metadata of moving objects in the video clips. The extracted metadata of a same moving object that appears in different video clips may be further merged together by the main computing device.

Abstract translation: 在一些示例中，主计算设备可以被配置为将视频流分割成处理包括多个帧的视频流的多个视频片段。 此外，主计算设备可以被配置为将视频剪辑分发到多个计算节点以提取视频剪辑中的移动对象的元数据。 出现在不同视频剪辑中的相同移动对象的提取的元数据可以由主计算设备进一步合并在一起。