A control system for controlling target computers through a portable computer is disclosed. The control system includes a first USB device controller, a second USB device controller, and a third USB device controller. The first USB device controller transmits a first input signal and receives video data....http://www.google.de/patents/US20060253639?utm_source=gb-gplus-sharePatent US20060253639 - Control system for controlling a plurality of target computers through portable computer
