Audio playback/recording apparatus having multiple decoders...

Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion – With content reduction encoding

Reexamination Certificate

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Details

C704S500000, C704S504000, C704S201000, C380S232000, C380S228000, C380S279000, C369S013010, C709S230000

Reexamination Certificate

active

06904406

ABSTRACT:
An audio playback/recording apparatus includes an audio input processing section which receives analog audio data, and converts the analog audio data to digital audio data; a playback/recording processing section which compresses digital audio data output from the audio input processing section and stores the compressed digital audio data into a RAM and which decompresses the compressed digital audio data according to attribution data indicating a type of compression; an audio output processing section which receives the decompressed digital audio data, converts the decompressed digital audio data to analog audio data, and outputs the analog audio data to an output apparatus; and an external recording circuit section which records compressed digital audio data stored in the RAM into an external recording medium, reads out the compressed digital audio data, and stores the data into the RAM.

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