Patent ID: 8200851

Claim:
A remote console unit comprising: a signal processing apparatus including: an image signal processing circuit that receives an image signal from a computer main body through a LAN cable; and a signal transmitting and receiving circuit that sends and receives various signals other than the image signal to and from the computer main body through the LAN cable; a display apparatus connected to the signal processing apparatus and outputting the image signal that has been received from the computer main body onto a display screen; an input apparatus provided for inputting data into the computer main body; and a rack that includes a column portion and a caster portion; wherein the column portion commonly supports the signal processing apparatus, the display apparatus, and the input apparatus, wherein the caster portion supports the bottom portion of the column portion, wherein the various signals include a sound signal and an operating signal from one or more input apparatus for remotely operating the computer main body, the operating signal from the each input apparatus being a serial signal, wherein the LAN cable includes at least four transmission lines, wherein three of the four transmission lines are used to transmit the image signal, and one of the four transmission lines is used to transmit the sound signal and the operating signal multiplexed by the signal transmitting and receiving circuit, wherein data input and/or output can be performed remotely to and from the computer main body through the LAN cable; wherein a user of the remote console unit performs a remote operation on the computer main body at a place separated from the computer main body; and wherein the signal processing apparatus has a function of compensating for a characteristic degradation of the image signal and the various signals including the sound signal and the operating signal associated with an extension of the LAN cable.