System by which a remote computer receives screen images from and transmits commands to a host computer
First Claim
1. In a computer network having at least one computer system operatable therein, said computer system having a plurality of components interconnected by a system bus for transferring information between said components, said computer system further having a local console, a remote console, and a system by which said remote console emulates said local console, said system comprising:
- a system memory having a video memory portion in which screen images of said local console are stored, said system memory disposed within said local console;
means for transferring screen images from said system memory in said local console to said remote console thereby emulating the local console screen images at said remote console simultaneously with said local console;
a keystroke controller connected to said local console so as to receive keystroke signals therefrom, said keyboard controller allowing a local keyboard and a remote keyboard to be operated simultaneously; and
means for inserting keystrokes from said remote console into said keystroke controller, thereby emulating the local console keyboard, said local console being emulated at said remote console without the use of additional software in said local console.
2 Assignments
0 Petitions
Accused Products
Abstract
A remote console emulation for a computer system manager operates by transferring video screen images from system memory to the remote console and by inserting keystrokes from the remote console into the system keyboard controller. This emulation constitutes a marked improvement over prior art emulations because it does not require software on the host system.
214 Citations
15 Claims
-
1. In a computer network having at least one computer system operatable therein, said computer system having a plurality of components interconnected by a system bus for transferring information between said components, said computer system further having a local console, a remote console, and a system by which said remote console emulates said local console, said system comprising:
-
a system memory having a video memory portion in which screen images of said local console are stored, said system memory disposed within said local console; means for transferring screen images from said system memory in said local console to said remote console thereby emulating the local console screen images at said remote console simultaneously with said local console; a keystroke controller connected to said local console so as to receive keystroke signals therefrom, said keyboard controller allowing a local keyboard and a remote keyboard to be operated simultaneously; and means for inserting keystrokes from said remote console into said keystroke controller, thereby emulating the local console keyboard, said local console being emulated at said remote console without the use of additional software in said local console. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A system by which a personal computer having a monitor and a keyboard can emulate a host computer to which it is connected, said system comprising:
-
means for displaying host system output on said monitor of said personal computer simultaneously with a monitor of said host system, said means for displaying comprising; memory disposed within said host computer where host computer screen images are stored, and means for transmitting said screen images to said monitor of said personal computer; and means for receiving keyboard input from said personal computer simultaneously with input from said host computer, said means for receiving disposed within said host computer, said means for receiving comprising; a keyboard controller disposed within said host computer, and means for transmitting keystrokes from said keyboard of said personal computer to said keyboard controller, whereby input may be sent from said personal computer to said host computer and output may be sent from said host computer to said personal computer without requiring use of software run on said host computer. - View Dependent Claims (11, 12, 13, 14, 15)
-
Specification