A reusable hardware layout ("core") for performing some, but not all, MPEG and AC-3 audio decoding functions. Specifically, the audio core performs matrixing and windowing operations of MPEG and AC-3 decoding. The disclosed audio core design includes a data path, a control logic unit, an input...http://www.google.com/patents/US5845249?utm_source=gb-gplus-sharePatent US5845249 - Microarchitecture of audio core for an MPEG-2 and AC-3 decoder
