Circuits for converting an analog wave profile signal into a digital wave profile signal, for converting analog to digital, for converting a series of binary encoded numeric signal samples into an analog to digital signal wave profile, and for converting digital to analog, and process for converting an analog wave profile signal into a digital wave profile signal, and for converting a series of binary encoded numeric signal samples into a signal wave profile

摘要

Invention Patent "CIRCUITS TO CONVERT ANALOGUE WAVE PROFILE SIGN INTO A DIGITAL WAVE PROFILE SIGN, TO CONVERT ANALOGUE TO DIGITAL SIGNALS, TO CONVERT A SERIES OF BODY ENCODED NUMERIC SIGNAL SAMPLES INTO A WINDOW PROFILE, TO CONVERT DIGITAL TO ANALOGUE, AND PROCESSES TO CONVERT AN ANALOGUE WAVE PROFILE SIGN INTO A DIGITAL WAVE PROFILE SIGN, AND TO CONVERT A SERIES OF BINARY ENCODED NUMERIC SIGNAL SAMPLES INTO A SIGNAL WAVE PROFILE ". A speech encoder converts analog speech signals into a stream of binary encoded voice samples. A circuit to perform analog to digital conversion compares an incoming voice signal to a signal coming from a digital integrator. Based on the comparison, a series of decisions are recorded that indicate an algebraic step signal of the input signal. A syllabic filter generates a step magnitude according to the recorded decisions. The algebraic step signal and step magnitude are combined to provide an algebraic signal / magnitude representation of the input signal. As the algebraic / magnitude representation is digitally integrated into a decimation filter, a digital representation of the analog signal is formed. A voice decoder, the antithesis of the encoder, converts binary encoded voice samples into an analog wave profile in a manner opposite to the A / D conversion process.