A management sub-system connects via a USB bus to a server or computer being managed. The management sub-system also couples to a management console, which has a number of conventional peripherals, including CD-ROM, floppy drive, hard disk, keyboard, mouse, and the like. These peripherals are emulated...http://www.google.fr/patents/US6636929?utm_source=gb-gplus-shareBrevet US6636929 - USB virtual devices
