Patent ID: 6943762

Claim:
A local area network comprising: a host computer communicating with a moving display device having a vertically oriented LED array for projecting a moving display onto a translucent surface; display control data; network control data; at least one of the display control data and network control data is supplied by the host computer to a stationary communication processor in the display device and the display control data is relayed via infrared data transmission from the stationary communications processor to a rotating display processor for controlling the LED array; the display device further comprises non-contact power transmission to the rotating display processor via magnetic induction, the display control data is relayed via infrared data transmission along a line of sight between an infrared transmitter positioned on the stationary communications processor and an infrared receiver connected to the rotating display processor, and wherein the line of sight is provided along the axis of a hollow drive shaft rotatably supporting the rotating display processor within the display device and the hollow drive shaft rotatably supporting the rotating display processor within the display device is driven by a motor, and a first power supply for the motor, a second power supply for the stationary communication processor and a third power supply for the rotating display processor and LED array are independent of one another.