A slow approach to mechanizing a fast digital interpolation filter

A digital data processor is mechanized using a given technology operating near its maximum speed. In order to digitally modulate this signal, the sampling rate of the information channel is increased and the data are smoothed by passing them through an interpolation filter. The faster sampling rate and higher speed interpolation filter appear to demand a change to a higher speed technology. This correspondence demonstrates that the slower technology can be carried through the interpolation filter stage.