发明授权
- 专利标题: Multiplexed audio data decoding apparatus and receiver apparatus
- 专利标题(中): 多路音频数据解码装置和接收装置
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申请号: US10945905申请日: 2004-09-22
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公开(公告)号: US07447241B2公开(公告)日: 2008-11-04
- 发明人: Yukio Fujii , Shinichi Obata , Hiroaki Shirane , Eiji Yamamoto
- 申请人: Yukio Fujii , Shinichi Obata , Hiroaki Shirane , Eiji Yamamoto
- 申请人地址: JP Tokyo JP Yokohama
- 专利权人: Hitachi, Ltd.,Hitachi Video and Information Systems, Inc.
- 当前专利权人: Hitachi, Ltd.,Hitachi Video and Information Systems, Inc.
- 当前专利权人地址: JP Tokyo JP Yokohama
- 代理机构: Mattingly, Stanger, Malur & Brundidge, P.C.
- 主分类号: H04J3/12
- IPC分类号: H04J3/12
摘要:
A multiplexed audio data decoder apparatus is provided in which integration of an audio decoder is easy, and has a high flexibility when the number of the formats to be processed is increased or when the specification is changed. In an external ROM 60 there are accumulated a plurality of decoding program codes corresponding to respective plural methods for compressing and encoding. A controller means 50 transfers the decoding program code corresponding to the method for compressing and encoding after changing thereof, from the external ROM 60 to an internal RAM 25. A DSP 22 starts decoding processing by using the decoding program code which is transmitted into the internal RAM 25.