Abstract: The invention provides a data processing system comprising: a CPU; a system memory; a plurality of network interfaces; a CPU bus connected to the system memory and to each of the network interface for initialization and control of the network interfaces by the CPU; an individual DMA bus connected to each of corresponding network interfaces and to the system memory; each of the network interfaces is connectable to an external network, whereby data can be transferred by the data processing system from one network to another using system memory.

Abstract: In a wireless multi-rate communications system, a method for extending the range of communications in the system by dividing the physical layer frame into two portions: a robust header portion and a body, where the repetition rate of the data symbols in the header portion is greater than or equal to the repetition rate of the data symbols in the body of the frame. In this way the header can be received and decoded by all stations in the system with a high probability, while the body of the frame need only be received and decoded by the destination station to which the body of the frame is intended to be received and decoded.

Abstract: An audio system is provided for generating audio sound for a host computer. It includes an interface connector for connection with the host computer; an interface controller for communicating with the host computer using the interface connector; a trap adapted to trap audio instruction signals from an application running on the host, such as a game having an audio portion; a trap controller adapted to control the trap; and an audio output. The system operates with an interface communicator which is adapted to respond to a request from the interface controller to read information from the trap and send audio output instruction to the audio output to generate audio sound.