Extension of USB functionality through shadowing of a remote USB host controller

摘要: A KVM extension configuration that includes a host connected to transmitter for transmitting communication signals across receiver where user interface devices are located. The has motherboard supports USB communications. controller at the initiates data reads and writes as delayed transactions protocol with plurality of devices. also core in having shadow registers include content is copied from receiver. successfully carries out communications through use registers. In addition, periodically synchronizes controller.