Wireless keyboard, video, mouse device

• US 20050052465A1
• Filed: 07/06/2004
• Published: 03/10/2005
• Est. Priority Date: 07/03/2003
• Status: Abandoned Application

• Current Assignee: Avocent Huntsville Corporation (Vertiv Holdings Co.)
• Original Assignee: Avocent Huntsville Corporation (Vertiv Holdings Co.)
• Inventors: Burke, Greg, Foster, Timothy D., Garner, Gregory M., Christoffersen, Kenneth R., Moore, Richard L., McCafferty, Kevin M., Covington, C. David, Huntly-Playle, Iain, Timmerman, Rudolph J.
• Application Number:
  US10/883,993
• Publication Number:
  US 20050052465A1
• Time in Patent Office: Days
• US Class Current: 345/603
• CPC Class Codes: G06F 3/023 Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG

Abstract

A wireless keyboard, video, mouse (KVM) system includes transmitting compressed video signals. Analog video data is converted from RGB signals to YUV signals which are compressed using a linear interpolation algorithm.

Claims

1. In a wireless keyboard, video, mouse (KVM) system, a method of transmitting video signals, comprising:

converting analog video data from RGB signals to YUV signals;

compressing the YUV signals; and

providing the compressed YUV signals.

2. A method as in claim 1 wherein Y signals of the YUV signals and UV signals of the YUV signals are processed in two groups.

3. A method as in claim 1 wherein the compressing comprises:

compressing the Y and UV data using a linear interpolation algorithm, and wherein the compressed YUV signals represent line segments.

4. A method as in claim 3 further comprising:

providing at least some of the endpoints using relative coordinates.

5. A method as in claim 1 wherein the RGB video signals are represented by 24 bits, the YUV signals are represented by 24 bits and at least some compressed YUV signals are represented by 16-bit line segments.

6. In a wireless keyboard, video, mouse (KVM) system, a method of processing video signals, comprising:

obtaining a compressed YUV signal;

decompressing the compressed YUV signal to obtain a YUV signal; and

converting the YUV signal to an RGB signal.

7. A method as in claim 6 wherein the compressed YUV signals represent line segments.

8. A method as in claim 7 wherein the RGB video signals are represented by 24 bits, the YUV signals are represented by 24 bits and at least some compressed YUV signals are represented by 16-bit line segments.