Wireless broadcast protocol

• US 20090083436A1
• Filed: 11/20/2008
• Published: 03/26/2009
• Est. Priority Date: 11/14/2003
• Status: Active Grant

• Current Assignee: Avocent Huntsville Corporation (Vertiv Holdings Co.)
• Original Assignee: Avocent Huntsville Corporation (Vertiv Holdings Co.)
• Inventors: Covington, C. David, Li, Sheng, Moore, Richard L., Lally, Charles, Huntly-Playle, Iain
• Granted Patent: US 8,091,005 B2
• Time in Patent Office: Days
• US Class Current: 709/232
• CPC Class Codes: G06F 11/1443 Transmit or communication errors

Abstract

In a keyboard-video-mouse (“KVM”) system in which a target computer may be wirelessly accessed by a plurality of remote stations, a method includes, by the target computer: obtaining a frame of video data; transmitting packets for the frame; transmitting a query packet; obtaining a list of requests from at least one of the remote stations, each request from a particular remote station identifying packets missed by that particular remote station; and resending at least some of the requested packets.

Claims

1-6. -6. (canceled)

7. In a keyboard-video-mouse (“

KVM”

) system in which a target computer may be wirelessly accessed by a plurality of remote stations, a method comprising, by each of a plurality of the remote stations;

receiving from a target computer broadcasted packets associated with a frame of video data;

keeping a list of missed packets;

upon receipt of a query packet from the target computer, sending to the target computer at least some entries from the list of missed packets; and

receiving at least some resent packets rebroadcasted from the target computer including some entries from the list of missed packets and other non-duplicated entries from corresponding lists of missed packets from others of said plurality of the remote stations.

8. A method as in claim 7 wherein the list has no more than eight entries.

9-11. -11. (canceled)