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김환용,곽담홍,박형근 원광대학교 공업기술개발연구소 1994 工業技術開發硏究誌 Vol.14 No.-
In this thesis, Adaptive Predictor has been designed based on the CCITT standard 32 kbps ADPCM algorithm. Designed Adaptive Predictor could calculate through the fixed -point evaluation deciding the exact prediction signal attaining the improved processing speed characteristic. Hardware has been designed with the COMPASS design tool adopting 1.0[μm] CMOS design rule. For the verification of designed hardware, the results of the logic simulation has been compared with that of the algorithm simulation followed by the coincided results with the processing time characteristic of 2(μσ). According to this result, ADPCM system could be able to process the speech signal within 4(μs) and to multiplex PCM channel property.