Patent ID: 7844765
Filing Date: 2010-11-30
Classification: G06F,G09G

Abstract:
1. A KVM switch connected to a server, and a client via a network, comprising: a signal processing portion that receives an analog image signal corresponding to screen data displayed on a display device of the client from the server, executes analog/digital conversion to the analog image signal, and stores a converted digital image signal as the screen data into a memory; a detecting portion that, when new screen data is stored into the memory, detects data corresponding to a changing part of the new screen data to screen data that has already been stored into the memory; a thinning-out portion that thins out the detected data corresponding to the changing part of the new screen data; a transmitting and receiving portion that transmits data corresponding to the changing part of the new screen data after the thinning-out to the client, and receives operation data from an input device connected to the client; and a setting portion that sets a value of a permissible band on the network used for data transmission to the client.