DIGITAL KOPPLINGSANORDNING FOR OMVANDLING AV EN KOMPRIMERAD DELTAMODULERAD SIGNAL TILL EN PULSKODMODULERAD SIGNAL

摘要

A digital circuit arrangement for directly converting compressed DM or DPCM signals into PCM signals, comprising a digital filter and a step size control circuit in which a DM bit or a DPCM code word and the associated step size code word are simultaneously applied to the digital filter.