Universal compressed audio player

Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium

Patent

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Details

369 48, G11B 1722

Patent

active

061222305

ABSTRACT:
A universal compressed audio player having the ability to decode and play an encoded audio file residing in a music storage, regardless of the particular encoding algorithm used to encode the audio file, consists of: a music storage containing a compressed audio file to be decoded; a programmable digital signal processor adapted to decode the compressed audio file under the direction of a decoding software program; a nonvolatile memory containing the decoding software program directing the operation of the digital signal processor; a program adapted to copy the decoding software program from a memory card into the nonvolatile memory; a digital-to-analog converter to convert the decoded signal into an analog audio signal; and a speaker or headphones to convert the analog audio signal into sound.

REFERENCES:
patent: 5177728 (1993-01-01), Otsubo
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patent: 5418713 (1995-05-01), Allen
patent: 5428592 (1995-06-01), Endo
patent: 5566379 (1996-10-01), Mawatari et al.
patent: 5617386 (1997-04-01), Choi
patent: 5687279 (1997-11-01), Matthews
patent: 5999505 (1999-12-01), Yasui

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