Patent ID: 8332545
Filing Date: 2012-12-11
Classification: G06F

Abstract:
1. A USB device, comprising: a battery; at least one port, coupled to the battery, wherein the at least one port is operable to couple to a host USB device which is configured to charge the battery, where the at least one port is configured to receive an enumeration request from the host USB device; device logic, wherein the device logic is configured to perform functionality of the USB device, wherein the device logic is further configured to perform enumeration of the USB device with the host USB device; low power logic, wherein the low power logic is configured to perform enumeration of the low power logic with the host USB device using only power provided by the host USB device; a switch coupled to the at least one port, wherein the switch is configured to couple the device logic to the at least one port via a first USB connection or couple the low power logic to the at least one port via a second USB connection, wherein the switch is configured to: wherein after coupling the device logic to the at least one port, the device logic is configured to perform enumeration of the device logic with the host USB device.