Audio playback/recording apparatus
First Claim
1. An audio playback/recording apparatus comprising:
- an audio input processing section, which receives analog audio data, and converts said analog audio data to digital audio data;
a playback/recording processing section having a compression section which compresses said digital audio data output from said audio input processing section and stores said compressed digital audio data and attribution data indicating a type of a compression of said compressed digital audio data into a RAM, and an expansion section which decompresses compressed digital audio data stored in said RAM based on attribution data indicating a type of a compression of said compressed digital audio data stored in said RAM;
an audio output processing section, which receives decompressed digital audio data output from said playback/recording processing section, converts said decompressed digital audio data to analog audio data, and outputs said analog audio data to an output apparatus;
an external recording circuit section, which records compressed digital audio data stored in said RAM into an external recording medium, and reads out compressed digital audio data from said external recording medium, and stores said readout data into said RAM.
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Accused Products
Abstract
An audio playback/recording apparatus comprising: an audio input processing section 11, which receives analog audio data, and converts the analog audio data to digital audio data; a playback/recording processing section 12, which compresses digital audio data output from the audio input processing section 11 and stores the compressed digital audio data into a RAM 16, and which decompresses compressed digital audio data stored in the RAM 16; an audio output processing section 13, which receives decompressed digital audio data output from the playback/recording processing section 12, converts the decompressed digital audio data to analog audio data, and outputs the analog audio data to an output apparatus; an external recording circuit section 18, which records compressed digital audio data stored in the RAM 16 into an external recording medium 18A, reads out compressed digital audio data output from the external recording medium 18A, and stores the data into the RAM 16.
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Citations
6 Claims
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1. An audio playback/recording apparatus comprising:
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an audio input processing section, which receives analog audio data, and converts said analog audio data to digital audio data;
a playback/recording processing section having a compression section which compresses said digital audio data output from said audio input processing section and stores said compressed digital audio data and attribution data indicating a type of a compression of said compressed digital audio data into a RAM, and an expansion section which decompresses compressed digital audio data stored in said RAM based on attribution data indicating a type of a compression of said compressed digital audio data stored in said RAM;
an audio output processing section, which receives decompressed digital audio data output from said playback/recording processing section, converts said decompressed digital audio data to analog audio data, and outputs said analog audio data to an output apparatus;
an external recording circuit section, which records compressed digital audio data stored in said RAM into an external recording medium, and reads out compressed digital audio data from said external recording medium, and stores said readout data into said RAM. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification