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US 5,692,099 AGranted
Computer system including recovery function of ADPCM sound data
AssigneeHudson Soft Co., Ltd.
InventorsKatsunori Takahashi, Masahide Tomita
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Abstract
A computer system having a storage, calculating portion, an ADPCM decoder, and recovery portion. The recovery portion calculates a recovery value based on control data and an initial scale value and replaces a reproduced value with the recovery value if a reproducing operation stops halfway through a sound data. Thus, the ADPCM decoder reproduces sound from the middle of the sound data.
Claims2
A computer system for processing sound data comprising:
- a storage for storing adaptive difference pulse code modulation (ADPCM) sound data and a plurality of scale values, each ADPCM sound data having control data;
- calculating means for calculating reproduced values based on said ADPCM sound data and said plurality of scale values;
- an ADPCM decoder, connected with calculating means, for reproducing sound in accordance with said reproduced values;
- and
- recovery means for calculating a recovery value based on said control data and an initial scale value in said plurality of scale values and replacing said reproduced value with said recovery value if a reproducing operation stops halfway through the sound data;
- wherein said ADPCM decoder reproduces the sound from the place where said reproducing operation stops halfway through the sound data.
3 more elements
Dependencies are inferred from the claim text.