Method and system for initiating and loading DMA controller registers by
using user-level programs
    52.
    发明授权
    Method and system for initiating and loading DMA controller registers by using user-level programs 失效
    通过使用用户级程序启动和加载DMA控制器寄存器的方法和系统

    公开(公告)号:US5659798A

    公开(公告)日:1997-08-19

    申请号:US595792

    申请日:1996-02-02

    CPC classification number: G06F13/28

    Abstract: In a computer system the typically high overhead requirement for CPU instructions to operate a conventional direct memory access (DMA) controller are reduced to two user-level memory references via User-level Direct Memory Access (UDMA). The UDMA apparatus is located between the CPU and a DMA Controller, whereby the UDMA is programmed to use existing virtual memory translation hardware of the associated computer system to perform permission checking and address translation without Kernel involvement, and otherwise use minimal Kernel involvement for other operations.

    Abstract translation: 在计算机系统中,用于操作常规直接存储器访问(DMA)控制器的CPU指令的通常高开销要求通过用户级直接存储器访问(UDMA)被减少到两个用户级存储器引用。 UDMA设备位于CPU和DMA控制器之间,由此UDMA被编程为使用相关联的计算机系统的现有虚拟存储器转换硬件来执行权限检查和地址转换而不涉及内核,否则对其他操作使用最小的内核参与 。

    Depth limiting device
    53.
    发明授权

    公开(公告)号:US11534840B2

    公开(公告)日:2022-12-27

    申请号:US17060246

    申请日:2020-10-01

    Applicant: Kai Li

    Inventor: Kai Li

    Abstract: A depth limiting device includes a braking structure; a limited shrinking structure, the limited shrinking structure including a part that surrounds a moving object and being in a home position or a compressed position; and a structure adapted for pushing the limited shrinking structure to the home position. The braking structure brakes the moving object such that the moving object moves together with the depth limiting device. When the moving object enters into a subject, the part of the limited shrinking structure is pressed against the subject, and the limited shrinking structure moves from the home position to the compressed position and stops the moving object from entering further into the subject.

    Depth limiting drill
    55.
    发明授权

    公开(公告)号:US10183339B2

    公开(公告)日:2019-01-22

    申请号:US15384539

    申请日:2016-12-20

    Applicant: Kai Li

    Inventor: Kai Li

    Abstract: A depth limiting device for a drill includes a main body, an axial braking structure, and a limited shrinking structure. The axial braking structure is attached to the main body. The limited shrinking structure surrounds a drill rod of the drill, is slidably attached to the main body, and is in a home position or a compressed position. The axial braking structure axially brakes the drill rod such that the drill rod moves together with the depth limiting device. When the drill rod enters into a subject, the limited shrinking structure is pressed against the subject, moves from the home position to the compressed position, and stops the drill rod from entering further into the subject.

    Image processing method and device
    59.
    发明授权
    Image processing method and device 有权
    图像处理方法及装置

    公开(公告)号:US08558869B2

    公开(公告)日:2013-10-15

    申请号:US13417752

    申请日:2012-03-12

    CPC classification number: H04N7/15 H04N7/142 H04N7/147

    Abstract: Embodiments of the present invention provide an image processing method and device, relating to the field of communications technology. The method includes: receiving at least two channels of images transmitted from a remote conference site; if there is a blind area in splicing of the at least two channels of images, comparing the width of the blind area with the sum of the widths of a left border and a right border of a display apparatus in a local conference site; processing the at least two channels of images separately according to a comparison result; outputting the at least two channels of processed images separately to the display apparatuses in the local conference site for displaying. In the embodiments of the present invention, the optimal image display effect may be achieved and the user experience in a telepresence video conference may be improved.

    Abstract translation: 本发明的实施例提供了一种涉及通信技术领域的图像处理方法和装置。 该方法包括:从远程会场接收至少两个信道的图像; 如果存在至少两个通道的图像拼接的盲区,则将盲区的宽度与本地会场中的显示装置的左边界和右边界的宽度之和进行比较; 根据比较结果分别处理至少两个通道的图像; 将所处理的图像的至少两个信道分别输出到本地会场的显示装置以进行显示。 在本发明的实施例中,可以实现最佳图像显示效果,并且可以提高远程呈现视频会议中的用户体验。

    DATA SPLIT BETWEEN MULTIPLE SITES
    60.
    发明申请
    DATA SPLIT BETWEEN MULTIPLE SITES 有权
    数据分布在多个站点之间

    公开(公告)号:US20130176988A1

    公开(公告)日:2013-07-11

    申请号:US13578735

    申请日:2011-02-11

    Abstract: Splitting data in a wireless communications network. Data may be split to use multiple base stations for transmission to user equipment in order to improve the bandwith if a UE is on a cell edge, or may be split by user equipment for transmission to multiple base stations in order to improve handover. Data splitting may be performed at the Packet Data Convergence Protocol layer, at the Radio Link Control layer, or at the Media Access Control layer on user equipment or on a base station. Data may instead be split in a network node, such as in a serving gateway, in Yes order to reduce X2 interface load or delay carrier aggregation.

    Abstract translation: 在无线通信网络中分割数据。 数据可以被拆分为使用多个基站来传输到用户设备,以便如果UE处于小区边缘,则可以改善带宽,或者可以由用户设备拆分以传输到多个基站,以便改善切换。 数据分割可以在分组数据收敛协议层,无线电链路控制层或用户设备或基站上的媒体访问控制层执行。 数据可以以“是”的顺序替代地分配在网络节点中,例如在服务网关中,以减少X2接口负载或延迟载波聚合。

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