ASYNCHRONOUS SAMPLING AND RECONSTRUCTION FOR ASYNCHRONOUS SAMPLE DATA COMMUNICATION SYSTEM

摘要

A system and method for deriving a decoding rate to be used by a periodic decoder in reconstructing an analog or voice waveform from asynchronously received sample data that was generated at an unknown and possibly changing periodic encoding rate. Sample data representing a particular defining characteristic of a waveform at unknown but substantially uniformly spaced times is received asynchronously at a generally non-uniform rate. The sample data is stored in a buffer memory until used by a periodic decoder to reconstruct the waveform. The rate at which the periodic decoder uses samples to reconstruct the waveform is adjusted in accordance with the number of samples stored in the buffer such that the number of stored samples tends toward a median number.