专利名称：MPEG AUDIO DECODER
decoder
发明人：KU, Charlene, S.,STEARNS, Charles, C.,TAO, Olive, T.
申请号：EP96918118.0
申请日：19960612
公开号：EP0832470A2
公开日：
19980401
专利内容由知识产权出版社提供
摘要：Decompression of MPEG compressed audio data is performed in a computer system by the host processor in the computer system providing preprocessing data decompression and a dedicated audio decoder engine (which is a digital signal processor) performing the filtering and windowing of the host preprocessed data. The audio decoder engine includes a data path, instruction set, registers and internal program and data memory. The host performs a large portion of the audio decompression, leaving the windowing and filtering to the audio decoder engine. Thus the computationally intensive portions of the decompression are performed more efficiently. Coefficient storage in the audio decompression engine is optimized by taking advantage of the symmetries inherent in the coefficient data, both for the filter coefficients and the windowing coefficients. Double buffer input and output buffers speed the data flow between the host processor and the audio decoder engine. The double buffers allow a continuous flow of data from the host processor to the audio decoder engine.
申请人：S3 Incorporated
地址：2801 Mission College Blvd. Santa Clara, California 95052-8058 US
国籍：US
代理机构：Gill, David Alan 更多信息请下载全文后查看

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