US 7,249,167 B1Granted

Intelligent modular server management system for selectively operating a plurality of computers

AssigneeRaritan, Inc.

InventorsYee S. Liaw, Lee Glinski, Alex Lee

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Abstract

An intelligent, modular server management system for coupling a series of remotely located computers to one or more user stations allowing for selective access of the remotely located computers. A centralized computer matrix switching system is provided to enable a computer user station to access and operate a remotely located computer in a stable environment and transmit analog signals through the switching system over an extended range. The centralized computer matrix switching system receives the input from the computer user station or the remotely located computer, including the keyboard, video monitor and mouse signals, and transmits the signals as though the computer user station was directly coupled to the remotely located computer.

Claims20

Dependent claims

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.

6 more elements

A computer switching system comprising:

a user station including a keyboard, cursor control device and video display;
a switch for enabling communication between said user station and a plurality of remotely located computers, wherein said switch is coupled to said user station by a first connection;
and
a plurality of computer interface modules each coupled to a communication circuit of one of said plurality of remote computers and each of said computer interface modules coupled to said switch by a second connection;
wherein said user station receives keyboard and cursor control device signals, packetizes at least one of said keyboard or cursor control device signals, and transmits said packet with command data to said switch;
wherein said switch interprets said command data in said packet to determine a destination of said packet, emulates keyboard or cursor control device signals, and transmits said emulated keyboard or cursor control device signal to said destination;
wherein one of said computer interface modules receives video signals having red, green, and blue components from one of said remote computers and encodes synchronization signals onto at least one of said components for transmission to said user station through said switch;
and
wherein said user station analyzes said encoded synchronization signals having a predetermined signal characteristic to automatically amplify one or more frequency components of said video signals and compares said encoded synchronization signals to a signal of known shape to determine a degradation of said encoded synchronization signals.

6 more elements

Dependencies are inferred from the claim text.