发明名称 DELTA MODULATION SYSTEM
摘要 A method of and apparatus for time compression and changing the readout speed of a delta modulation encoded audio signal. The encoded audio signal has portions selectively deleted therefrom in accordance with detected zero crossovers of the same sign which occur in a predetermined timing sequence. The encoded audio signal which has had portions selectively deleted therefrom is decoded, with the undeleted decoded portions being joined. The undeleted portions have the same gain factor where joined, thereby eliminating step transients.
申请公布号 GB1599090(A) 申请公布日期 1981.09.30
申请号 GB19780018819 申请日期 1978.05.10
申请人 IBM CORP 发明人
分类号 G10L21/00;G11B20/00;G11B20/10;G11B27/00;H03M3/02;H04B1/66;(IPC1-7):G10L1/06 主分类号 G10L21/00
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