Patent ID: 9252899
Filing Date: 2016-02-02
CPC Classification: H04H

Claim Text:
1. A method for processing a composite digital audio broadcast signal to smooth in-band on-channel signal blending, comprising: separating a received composite digital audio broadcast signal into an analog audio portion and a digital audio portion; processing the digital audio portion of the received composite digital audio broadcast signal to compute a signal quality metric value as a signal-to-noise ratio (SNR) measure for each of a plurality of audio frames, thereby computing signal quality metric values for the plurality of audio frames; storing the signal quality metric values in memory; dynamically adjusting the digital audio portion of the composite digital audio broadcast signal in a first audio frame based on one or more of the stored signal quality metric values computed for one or more subsequently received audio frames to produce an adjusted digital audio portion; and blending the analog audio portion with the adjusted digital audio portion to produce an audio output.