KVM SWITCH FOR CONTROLLING COMPUTERS AND METHOD THEREOF
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Abstract
A system for connecting a console device to computers comprising a graphic user interface menu apparatus for controlling the computers. The system comprises a user-side circuit, a central crosspoint switch, a plurality of computer-side circuits, a menu generating unit and a first switching device. The user-side circuit coupled to the console device receives electronic signals produced by the keyboard and cursor control device and creates a data packet. The central crosspoint switch is coupled to the user-side circuits, receives the data packets and routes the data packets. The computer-side circuits coupled to the central crosspoint switch and the computers receive the data packets from the central crosspoint switch for supplying the data packets to the computers. The menu generating unit generates a menu to be displayed. The first switching device alternately outputs a video signal of the menu data and a video signal from the computers to the video monitor according to a vertical synchronization signal.
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Citations
55 Claims
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1-32. -32. (canceled)
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33. In a system for connecting a console device to a plurality of computers, a graphic user interface menu generating apparatus connected between the console device and the plurality of computers, the apparatus comprising:
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an image capture device disposed between the console device and the plurality of computers for capturing a plurality of first video signals, each first video signal originating from one of the plurality of computers, to generate a plurality of preview images for the corresponding computers; a menu generating unit for generating menu data; a video signal generator for generating a second video signal based on the menu data and the plurality of preview images, the second video signal representing a menu frame containing a representation of at least some of the plurality of computers, the menu frame further including one or more of the plurality of preview images arranged in a non-overlapping relationship; and a first switching device for outputting the second video signal or one of the plurality of first video signals to the console device. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method implemented in an apparatus connected between a plurality of computers and a console device, the method comprising:
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capturing first video signals, each first video signal originating from one of the plurality of computers, to generate a plurality of preview images for the corresponding computers; generating menu data; generating a second video signal based on the menu data and the plurality of preview images, the second video signal representing a menu frame containing a representation of at least some of the plurality of computers, the menu frame further including one or more of the plurality of preview images arranged in a non-overlapping relationship; and outputting the second video signal or one of the first video signals to the console device. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52)
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53. A method for controlling a number of computers by a console device including a keyboard, a cursor control device and a video monitor, comprising:
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(a) receiving a first video signal from one of the computers; (b) generating a second video signal representing a menu image; and (c) outputting the first video signal or the second video signal to the video monitor according to a vertical synchronization signal. - View Dependent Claims (55)
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54. The method of claim 54, wherein step (c) includes:
outputting frames of the first video signal and frames of the second video signal alternately according to the vertical synchronization signal.
Specification