Patent ID: 8159485

Claim:
A method of providing power to a customer pole display comprising: translating a power signal input from a Universal Serial Bus to a display power signal, the display power signal providing power to a point-of-sale display, the translating being performed by a DC-DC converter; disabling the DC-DC converter by a processing device before enumeration to disconnect power from the point-of-sale display before enumeration; enabling the DC-DC converter by the processing device following enumeration, thereby limiting the point-of-sale display to 100 mA before enumeration and limiting the point-of-sale display to 500 mA after enumeration, thereby conserving power and remaining within a maximum power guideline provided for in a Universal Serial Bus specification; coupling the processing device, DC-DC converter, and a Universal Serial Bus interface to the Universal Serial Bus directly through a first connector; and coupling the point-of-sale display to the processing device, DC-DC converter, and Universal Serial Bus interface directly through a second connector, thereby providing an in-line Universal Serial Bus interface adapter comprising the processing device, DC-DC converter, and the Universal Serial Bus interface.