Patent ID: 9326067
Filing Date: 2016-04-26
CPC Classification: G10L,H04R

Claim Text:
1. A method for multiplexing audio signals into a single audio channel, the method comprising the steps of: receiving a first audio signal over a first audio link; receiving a second audio signal over a second audio link; upward frequency shifting at least one of the first audio signal to a first bandwidth range and the second audio signal to a second bandwidth range to respectively produce at least one of a first frequency shifted signal and a second frequency shifted signal or a non-frequency shifted signal, the first frequency shifted signal, the second frequency shifted signal, and the non-frequency shifted signal are produced using a non-modulated signal; summing at least one of the first frequency shifted signal or the second frequency shifted signal with one of a remainder of the first frequency shifted signal, the second frequency shifted signal or the non frequency shifted signal to produce a composite signal; providing the composite signal over a single audio channel; and extracting at least one audio signal from the composite signal over the single audio channel by: