Patent ID: 7882297
Filing Date: 2011-02-01
Classification: G06F,Y02D

Abstract:
1. A serial bus hub, comprising: an upstream port, wherein the upstream port is configured to couple to a host system; one or more downstream ports coupled to the upstream port, wherein the one or more downstream ports is each configured to couple to a peripheral device; one or more low power devices comprised in the serial bus hub and coupled to the upstream port, wherein the one or more low power devices have no functionality external to the serial bus hub, wherein the presence of the one or more low power devices allows the serial bus hub to draw additional power from the host system, and wherein a substantial portion of the additional power from the host system is usable by one or more peripheral devices coupled to the one or more downstream ports; wherein the serial bus hub is configured to allow the host system and the one or more peripheral devices coupled to the one or more downstream ports to communicate.