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US 5,845,242 AGranted
Computer system for processing image and sound data
AssigneeHudson Soft Co., Ltd.
InventorsKatsunori Takahashi, Masahide Tomita
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Abstract
A computer system having a control unit, a rounding circuit, and an ADPCM decoder. The control unit generates ADPCM sound data. The rounding circuits rounds a calculating value of the ADPCM sound data so that the ADPCM decoder reproduces original sound from the rounding value of the ADPCM sound data provided by the rounding circuit.
Claims1
A computer system for processing image and sound data, comprising:
- a control unit for generating adaptive difference pulse code modulation (ADPCM) data;
- rounding means for rounding said ADPCM data;
- means for generating a level changing value in correspondence with said rounded ADPCM data;
- means for generating a scale level value in correspondence with said level changing value;
- and
- an ADPCM decoder for reproducing sound data according to a value obtained from a difference value which is generated in correspondence with said scale level value.
3 more elements
Dependencies are inferred from the claim text.