| 摘要 |
A system and method for operating a display device and one or more USB peripherals remotely from a host computer. The system may include a host computer, a display device, one or more USB compliant peripherals, a local extender operable to couple to the host computer system and a remote extender coupled to the local extender and to the display device and one or more USB peripherals. The local extender may be coupled to the remote extender through four twisted wire pairs which in one embodiment comprises a category 5 cable. The cable may be longer than the maximum length allowed by the USB specification. The host computer system may generate a video signal intended for the display device, as well as one or more peripheral signals intended for the one or more USB peripherals. The video signals may be received by the local extender from the host computer, converted to a form which is suitable for transmission over the cable, and transmitted to the second video converter which may then send the video signals to the display device. The local extender may receive the one or more peripheral signals from the host computer system over an internal computer bus, such as a PCI bus, convert the signals to a non-USB compliant protocol, such as Universal Serial Bus Extension (USBX) packets, and transmit the USBX packets to the remote extender over the cable. The video data may include RGB signals as well as HSync and VSync video synchronization signals.
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