Patent ID: 7606314
Filing Date: 2009-10-20
Classification: G06F,G09G,H04N

Abstract:
1. A method of transmitting video signals over a keyboard, video and mouse (“KVM”) network from one of a plurality of remote computers to one of a plurality of user workstations, said method comprising the steps of: receiving at least one video signal from a remote computer; digitizing said video signal; dividing said digitized video signal into one or more pixel blocks; comparing said pixel block to a previously stored pixel block; transmitting an instruction to one of a plurality of the user workstations if the comparing does not exceed a threshold; generating a code function to be associated with each of said pixel blocks if the comparing exceeds said threshold; storing said code function in a cache comparing said generated code function the previously stored code functions in the cache; storing said pixel blocks in a first cache when the code function does not match any code function in the cache; transmitting to one of the plurality of user workstations said pixel blocks when the compared code function does not match any code function in said cache; and updating a second cache with said transmitted pixel blocks.