All digital delta to PCM converter

摘要: A digital circuit for converting a delta modulated signal to binary coded without producing an interim analog signal. The principal portions of the are up-down counter, read-only memory instantaneous output which is controlled by logic driving counter in response incoming signal, and scanner time-spaced pulses outputs memory. comparator also included relatively slowly compensate drift ensuring that, over long periods such as few seconds, oscillates around its mid-value.