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1. 发明授权

US5878248A Device access controller for virtual video/keyboard/mouse input/output for remote system management and maintenance 失效
标题翻译：用于虚拟视频/键盘/鼠标输入/输出的设备访问控制器，用于远程系统管理和维护
公开(公告)号：US5878248A
公开(公告)日：1999-03-02
申请号：US661571
申请日：1996-06-11
申请人： Michael Tehranian , Brian Martin , Michael Giancioppo , Jonathan Shapiro , Sheldon P. Gringorten , Paul D. Linton
发明人： Michael Tehranian , Brian Martin , Michael Giancioppo , Jonathan Shapiro , Sheldon P. Gringorten , Paul D. Linton
IPC分类号： G06F3/038 , G06F3/14 , G06F15/16
CPC分类号： G06F3/038 , G06F3/1454
摘要： A device access controller residing in a first computer system for transferring virtual inputs and outputs representing operations of the first system between the first system and a second system. The device access controller includes a video controller for performing video display operations, a video memory for storing video data representing operations of the first system, a network controller for transferring information between the first system and the second system, a controller processor, and a device access controller bus interconnecting the video controller, the network controller and the processor. A video interface is connected between the first system bus and the device access controller bus for receiving video information including video data and video write addresses from the first system bus and into the video memory and controller and the controller processor and network controller are responsive to the writing of video data into the video memory for reading the video information including the video data from the video memory and the video data write addresses from the video controller registers and transmitting the video information including the video data and the video data write addresses to the second system. The device access controller further includes a keyboard interface, a disk interface, and a serial interface operating in manners generally analogous to the video interface for corresponding communicating corresponding data between the first and second systems.
摘要翻译：驻留在第一计算机系统中的设备访问控制器，用于传送表示第一系统和第二系统之间的第一系统的操作的虚拟输入和输出。设备访问控制器包括用于执行视频显示操作的视频控制器，用于存储表示第一系统的操作的视频数据的视频存储器，用于在第一系统和第二系统之间传送信息的网络控制器，控制器处理器和设备连接视频控制器，网络控制器和处理器的访问控制器总线。视频接口连接在第一系统总线和设备访问控制器总线之间，用于从第一系统总线接收包括视频数据和视频写入地址的视频信息，并进入视频存储器和控制器，并且控制器处理器和网络控制器响应于将视频数据写入视频存储器，用于从视频控制器寄存器读取包括来自视频存储器的视频数据的视频信息和视频数据写入地址，并将包括视频数据和视频数据写入地址的视频信息发送到第二个系统。设备访问控制器还包括键盘接口，磁盘接口和串行接口，其操作方式大致类似于视频接口，用于在第一和第二系统之间传送对应的数据。

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