Patent ID: 9362981
Filing Date: 2016-06-07
CPC Classification: H04B,H04L

Claim Text:
1. A non-transitory memory medium for identifying minor echoes present in an input signal in the situation where two or more major echoes, also present in the input signal, have already been identified, wherein the memory medium stores program instructions, wherein the program instructions, when executed by one or more processors, cause the one or more processors to: (a) subtract a weighted power spectrum S (b) estimate one or more of the minor echoes from a time-domain signal to obtain echo parameters for the one or more minor echoes, wherein the time-domain signal is determined based at least in part on the difference spectrum and the spectrum F; remove the two or more major echoes and the one or more minor echoes from the input signal to obtain an equalized signal; recover information bits from the equalized signal; and provide an output signal to an output device, wherein the output signal is generated based on the information bits.