Patent ID: 7249167
Filing Date: 2007-07-24
Classification: G06F

Abstract:
1. A computer switching system comprising: a user interface device for multiplexing signals output from a connected keyboard and cursor control device and for providing an interface to a video display; a switch unit for enabling communication between said user interface device and a plurality of remotely located computers, said switch unit coupled to said user interface device by a single first connection; and a plurality of computer interface modules each coupled to said switch unit by a single second connection, each of said computer interface modules coupled to at least one of said remotely located computers; wherein video signals output from said remotely located computers are transmitted to said video display via said switch unit; wherein said user interface device comprises an amplification circuit for automatically amplifying said transmitted video signals based on analyzing at least an encoded synchronization signal having a predetermined signal characteristic transmitted with a component of said video signal and comparing said encoded synchronization signals to a signal of known shape to determine a degradation of said encoded synchronization signal; wherein said user interface device receives keyboard and cursor control device signals, packetizes at least one of said keyboard or cursor control signals and transmits said packetized signal with command data to said switch unit; and wherein said switch unit interprets said command data which identifies at least one of said remotely located computers, generates an emulated keyboard or cursor control device signal based on said packetized signal and transmits said emulated signal to said identified remotely located computer.