Digital-to-analog converter interpolator

Details Digital-to-analog converter interpolator Digital-to-analog converter interpolator

1984-02-06

1986-10-28

Smith, Jerry

Boots, shoes, and leggings

364608, 364852, 364853, 328 19, 307106, G06J 100, H03K 600, H03K 408, H03K 300

Patent

active

046202919

ABSTRACT:
A digital-to-analog converter interpolator is provided finding application, among others, as a digital ramp smoother. In the preferred embodiment, a regular input step digital ramp signal f(t) is provided as an input signal to a delay line. The delay line is selected so as to have a total delay length equal to an input update period (T) of concern. The output side of the delay line also is adjustable. The delay line voltage output is sampled at intervals of T divided by N over the length of the delay line, where N may be selected to give the desired precision. The sample voltages are summed in a suitable device, and each are given an equal weight of 1/N. The resultant output is a smooth wave form. Structure also is provided for adjusting the gain of the summing device.

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