Patent ID: 11935546
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. An audio communication receiver configured to receive an audio data stream conveying a sequence of quantized error values, the receiver comprising:
a multiplier configured to use corresponding envelope estimates to produce a sequence of reconstructed error values based on the sequence of quantized error values;
a summation element configured to combine the sequence of reconstructed error values with a sequence of predicted audio sample values to produce a sequence of reconstructed audio samples;
a predictor configured to produce the sequence of predicted audio sample values based on the sequence of reconstructed audio samples; and
an envelope estimator including:
an updater configured to apply a dynamic gain to the reconstructed error values to produce a sequence of update values; and
an integrator configured to combine each of the update values with the corresponding envelope estimate to produce a subsequent envelope estimate,

wherein the dynamic gain decreases from a maximum gain value to a minimum gain value as the corresponding envelope estimate increases.