Systems and methods for monitoring and controlling multiple computers

• US 20040015980A1
• Filed: 07/17/2002
• Published: 01/22/2004
• Est. Priority Date: 07/17/2002
• Status: Abandoned Application

• Current Assignee: Digi International Inc.
• Original Assignee: Digi International Inc.
• Inventors: Young, Joel, Rowen, Sarah, Zarns, Michael L.
• Application Number:
  US10/198,644
• Publication Number:
  US 20040015980A1
• Time in Patent Office: Days
• US Class Current: 719/310
• CPC Class Codes: G06F 11/321 Display for diagnostics, e.g. diagnostic result display, self-test user interface
• CPC Class Codes: G09G 2340/12 Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
• CPC Class Codes: G09G 2370/20 Details of the management of multiple sources of image data
• CPC Class Codes: G09G 2370/24 Keyboard-Video-Mouse [KVM] switch
• CPC Class Codes: G09G 5/14 Display of multiple viewports

Abstract

Systems and methods for substantially simultaneously controlling and monitoring multiple computers are provided. This is accomplished by routing keyboard and cursor control device signals coming from a workstation to a selected computer for controlling and by further multiplexing video signals outputted by two or more selected computers for PIP display using a KVM PIP switch.

Claims

1. A device to route keyboard and cursor control device signals coming from a workstation to control a computer selected from the multiple computers and to further receive a video signal from each of the multiple computers and to output a video signal that can provide a PIP display of two or more video signals received from two or more computers selected from the multiple computers for PIP display.

2. The device of claim 1, wherein the PIP display of the two or more video signals comprises a main display and one or more PIP displays of the two or more video signals received from the two or more computers selected from the multiple computers for the PIP display.

3. The device of claim 1, comprising:

a programmable switch to receive the keyboard and cursor control device signals from the workstation and to output the received keyboard and cursor control device signals for controlling the computer selected from the multiple computers, and to further output keyboard and cursor control device signals based on the selected two or more computers for PIP display;

an interface circuit communicatively coupled between the programmable switch and the multiple computers to route the keyboard and cursor control device signals coming from the workstation to the selected computer through the programmable switch; and

a PIP processor to receive the video signal from each of the multiple computers and the outputted keyboard and cursor control device signals from the programmable switch and to output the video signal based on the outputted keyboard and cursor control device signals for PIP display of the two or more computers selected from the multiple computers.

4. The device of claim 3, wherein the programmable switch outputting keyboard and cursor control device signals, based on the selected two or more computers for PIP display, comprises outputting a programmable switch signal to the PIP processor for PIP display of the two or more video signals based on the two or more computers selected for PIP display.

5. The device of claim 3, further comprising:

a coordinated switching module coupled between the programmable switch and the PIP processor to receive the keyboard and cursor control device signals through the programmable switch and to analyze the received keyboard and cursor control device signals and to further output a video selection signal that facilitates the PIP processor to PIP display the video signals coming from the two or more computers selected from the multiple computers.

6. The device of claim 4, further comprising:

a video input processor to receive a video signal from each of the multiple computers and to output a video signal that is compatible with a video signal input of the PIP processor, wherein the received video signal is a video signal selected from the group consisting of VGA signal, digital video (DV) signal, composite video signal, component video, and streaming video.

7. The device of claim 4, wherein the programmable switch to route keyboard and cursor control device signals is a switch selected from the group consisting of a manual switch, a dial, buttons, a switching circuit, character/function keys on the keyboard in combination with the PIP display, and a combination of a cursor control device.

8. The device of claim 1, wherein the outputted video signal is a multiplexed video signal, wherein the multiplexed signal includes multiple video signals from the two or more selected computers.

9. The device of claim 1, wherein the multiple computers are multiple servers.

10. A KVM PIP switch system, comprising:

a workstation including a keyboard, a cursor control device, and a video monitor;

multiple computers; and

a KVM PIP switch communicatively coupled between the workstation and the multiple computers such that the KVM PIP switch can route the keyboard and cursor control device signals coming from the workstation to the keyboard and cursor control device inputs of a computer selected from the multiple computers, and further the KVM PIP switch can receive video signals coming from the multiple computers and output a PIP multiplexed video signal using video signals coming from any two or more selected computers to the video monitor of the workstation for PIP display to control and monitor substantially simultaneously the two or more selected computers.

11. The system of claim 10, wherein the controlling and monitoring substantially simultaneously of the two or more selected computers comprises controlling and monitoring substantially simultaneously during boot-up and operation of the two or more selected computers.

12. The system of claim 10, wherein the multiple computers are multiple servers.

13. The system of claim 10, wherein the KVM PIP switch further comprises:

a programmable switch to route the keyboard and cursor control device signals from the workstation to the computer selected from the multiple computers, and to further output keyboard and cursor control device signals based on the selected two or more computers for PIP display;

an interface circuit communicatively coupled between the programmable switch and the multiple computers to route the keyboard and cursor control device signals coming from the workstation to the selected computer through the programmable switch; and

a PIP processor to receive the video signal from each of the multiple computers and the outputted keyboard and cursor control device signals from the programmable switch and to output the video signal based on the selected two or more computers for PIP display.

14. The KVM PIP switch of claim 13, further comprising:

a coordinated switching module coupled between the programmable switch and the PIP processor to receive the programmable switch signal and to analyze the received programmable switch signal and to further output a video selection signal that facilitates the PIP processor to PIP display of the two or more video signals coming from the two or more computers selected from the multiple computers.

15. The KVM PIP switch of claim 13, further comprising:

a video input processor to receive a video signal from each of the multiple computers and to output a video signal that is compatible with a video signal input of the PIP processor, wherein the received video signal is a video signal selected from the group consisting of VGA signal, digital video (DV) signal, composite video signal, component video, and streaming video.

16. The KVM PIP switch of claim 12, wherein the programmable switch to route keyboard and cursor control device signals is a switch selected from the group consisting of a manual switch and a switching circuit.

17. A multiple display KVM switch system, comprising:

a workstation including a keyboard, a cursor control device, and a PIP video monitor;

multiple computers; and

a KVM PIP switch communicatively coupled between the workstation and the multiple computers such that the KVM PIP switch can route the keyboard and cursor control device signals coming from the workstation to the keyboard and cursor control device inputs of a computer selected from the multiple computers, further the KVM PIP switch can receive video signals coming from the multiple computers and output video signals coming from any two or more selected computers to the PIP video monitor of the workstation such that the PIP video monitor PIP displays the two or more video signals coming from the two or more selected computers, and further the two or more selected computers can be controlled and monitored substantially simultaneously using the keyboard and the cursor control device of the workstation.

18. The system of claim 17, wherein the multiple computers are multiple servers.

19. The system of claim 17, wherein the KVM PIP switch further comprises:

a programmable switch to route the keyboard and cursor control device signals from the workstation to the computer selected from the multiple computers, and to further output keyboard and cursor control device signals based on the selected two or more computers for PIP display; and

an interface circuit communicatively coupled between the programmable switch and the multiple computers to route the keyboard and cursor control device signals coming from the workstation to the selected computer through the programmable switch.

20. The system of claim 17, wherein the PIP video monitor PIP displays the two or more video signals coming from the two or more selected computers such that the selected two or more computers can be monitored during boot-up and operation of the computers.

21. In a system including a workstation of the type that includes a keyboard, cursor control device, and a video monitor connected to multiple computers, a method of transmitting keyboard, cursor control device signals and video signals between a workstation and two or more selected computers from the multiple computers connected through a programmable switch, comprising:

selecting a computer from the multiple computers for controlling and monitoring, and further selecting one or more other computers from the multiple computers for monitoring substantially simultaneously using the programmable switch;

receiving keyboard and cursor control device signals from the workstation;

routing the received keyboard and cursor control device signals to the selected computer through the programmable switch for controlling the selected computer;

receiving a video signal from each of the connected multiple computers;

multiplexing the video signal received from each of the connected multiple computers for PIP display based on the selected computers; and

displaying the multiplexed video signal on the video monitor of the workstation such that the multiplexed video signal PIP displays the video signals of the selected computers.

22. The method of claim 21, wherein multiplexing the video signal received from each of the connected multiple computers for PIP display further comprises:

receiving a coordinated switching signal from the programmable switch based on the selected computer for monitoring and controlling and further based on the selected one or more other computers for PEP display and monitoring; and

multiplexing the video signal received from each of the connected multiple computers for PIP display based on the received coordinated switching signal.

23. The method of claim 22, wherein displaying the multiplexed video signal on the video monitor of the workstation further comprises:

displaying the multiplexed video signal such that the video signal from the selected computer for controlling is displayed as a main display on the video monitor and the video signals from the selected one or more other computers are displayed as a PIP display for substantially simultaneous monitoring on the video monitor.

24. The method of claim 22, wherein displaying the video signals comprises displaying the video signals such that the selected computers can be monitored during boot-up and operation.

25. The method of claim 23, wherein the multiple computers are one or more servers.

26. The method of claim 23, wherein the workstation and the computers does not require any additional software to route the keyboard, the cursor control device, and the video signals between the workstation and the multiple computers through the programmable switch.

27. The method of claim 23, wherein the programmable switch includes a KVM switch.

28. A method for substantially simultaneously monitoring and controlling multiple computers, comprising:

selecting a computer for controlling and monitoring from the multiple computers;

selecting one or more other computers for substantially simultaneously monitoring from the multiple computers;

routing control signals to the selected computer while controlling the selected computer;

receiving video signals from the multiple computers;

multiplexing the received video signals based on the selected computers; and

displaying the multiplexed video signal on a video monitor for PIP display to facilitate substantially simultaneous monitoring of the selected computers.

29. The method of claim 28, wherein displaying the multiplexed video signal on the video monitor for PIP display further comprises:

displaying the multiplexed video signal such that the video signal from the selected computer is displayed as a main display on the video monitor and the video signals from the selected one or more other computers are displayed as a PIP display on the video monitor.

30. The method of claim 29, wherein displaying the video signals comprises displaying the video signals such that the selected computers can be monitored during boot-up and operation.