17. A digital signal encoding-decoding combination as defined in claim 13 wherein said source of digital signals to be encoded includes, a source of analog signals, analog to digital converter means for converting the analog signals to digital form, a compression filter responsive to the output from the analog to digital converter means, the compression filter output being supplied to said coding means for coding thereof.
17. A digital signal encoding-decoding combination as defined in claim 13 wherein said source of digital signals to be encoded includes, a source of analog signals, analog to digital converter means for converting the analog signals to digital form, a compression filter responsive to the output from the analog to digital converter means, the compression filter output being supplied to said coding means for coding thereof. 18. A digital signal encoding-decoding combination as defined in claim 17 wherein ECG signals comprise said analog signal source.