SYSTEM AND METHOD FOR PERFORMING DIGITAL SIGNAL PROCESSING ON AN AC LINK BUS

摘要

A system and method for performing digital signal processing on data packets communicated across an AC-link bus directly interconnecting a codec to a codec controller. The system redefines the AC-link bus protocol into a modified protocol which allows digital signal processing to be performed on particular data streams in the data packets. A digital signal processor (DSP) is positioned at a point between the codec and the codec controller to perform the desired signal processing. The redefines AC-link bus protocol to pass desired data streams from time-division multiplexed slots in the AC-link bus protocol packet through the DSP. The DSP is connected to the AC-link bus in a manner to allow the DSP to have real-time access to the input and output data streams traveling through the AC-link bus. This allows real-time signal processing to be performed on data streams communicated over the AC-link bus without requiring access to a host processing device or the codec controller.