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    • 31. 发明申请
    • SYSTEM AND METHOD FOR INTERFACING AN ELECTRONIC DEVICE WITH A HOST SYSTEM
    • 用于将电子设备与主机系统接口的系统和方法
    • US20100057973A1
    • 2010-03-04
    • US12613926
    • 2009-11-06
    • Omar BARAKEMichael GoldsmithMaxime MattonJerry MaillouxRobert WoodLyall Winger
    • Omar BARAKEMichael GoldsmithMaxime MattonJerry MaillouxRobert WoodLyall Winger
    • G06F13/20
    • G06F1/266G06F1/3246G06F1/3287Y02D10/171
    • The disclosure describes a system and method for controlling interfacing parameters for a device when connected to a host. In the system and method, the communications interface is configurable to be in operable connection to a host using a microprocessor in the device having a first bus controller and a second bus controller, the second bus controller external to the microprocessor. The method comprises: establishing an initial connection by the device; conducting negotiations by the device to set a first data transmission rate for the device for the initial connection utilizing a communication bus controller contained in the microprocessor; and after detecting completion of enumeration of the device, re-establishing the connection by the device using the second bus controller in the device that processes the communications at a second transmission rate that is higher than the first data transmission rate.
    • 本公开描述了当连接到主​​机时用于控制设备的接口参数的系统和方法。 在系统和方法中,通信接口可配置为在具有第一总线控制器和第二总线控制器的设备中使用微处理器与主机可操作地连接,第二总线控制器位于微处理器外部。 该方法包括:通过设备建立初始连接; 通过所述设备进行协商,以利用包含在所述微处理器中的通信总线控制器来设置用于初始连接的设备的第一数据传输速率; 并且在检测到所述设备的枚举完成之后,通过所述设备中的所述第二总线控制器重新建立所述连接,所述第二总线控制器以高于所述第一数据传输速率的第二传输速率处理所述通信的设备。
    • 34. 发明申请
    • Method, apparatus and system for seamlessly sharing a graphics device amongst virtual machines
    • 用于在虚拟机之间无缝共享图形设备的方法,装置和系统
    • US20050210158A1
    • 2005-09-22
    • US10794914
    • 2004-03-05
    • David CowperthwaiteMichael GoldsmithKiran Panesar
    • David CowperthwaiteMichael GoldsmithKiran Panesar
    • G06F3/00G06F9/455
    • G06F9/45558G06F2009/45579G06F2009/45583
    • A method, apparatus and system are described for seamlessly and concurrently sharing a graphics device amongst multiple virtual machines (“VMs”) on a host computer. Specifically, according to one embodiment of the invention, a graphics device may be shared by multiple VMs such that only the output of one VM (i.e., the “focus VM”) is displayed on a display device coupled to the host computer. The focus VM may be identified according to a variety of ways. The focus VM may render its output into a frame-buffer and/or an overlay buffer, and the page table entries (“PTEs) that point to the frame-buffer may then be copied to a display buffer in an unused memory location associated with the focus VM. The PTEs may additionally be copied to display buffers in unused memory locations associated with the non-focus VMs on the host. The display buffer may then output its display (via the pointers to the frame buffers) to the display device. This output remains that of the focus VM until a different VM is selected as the new focus VM. The process may then repeat itself.
    • 描述了用于在主计算机上的多个虚拟机(“VM”)之间无缝并同时共享图形设备的方法,装置和系统。 具体地,根据本发明的一个实施例,图形设备可以由多个VM共享,使得仅在耦合到主计算机的显示设备上显示一个VM(即,“焦点VM”)的输出。 焦点VM可以根据各种方式来识别。 焦点VM可以将其输出呈现到帧缓冲器和/或覆盖缓冲器中,并且指向帧缓冲器的页表条目(“PTE”)可以被复制到与...相关联的未使用的存储器位置中的显示缓冲器 焦点虚拟机,PTE可以另外被复制到在与主机上的非聚焦VM相关联的未使用的存储器位置中显示缓冲器,然后显示缓冲器可以将其显示(经由指针到帧缓冲器)输出到显示设备。 该输出仍然是焦点VM的输出,直到选择不同的VM作为新的聚焦VM,然后该过程可以重复。