Patent ID: 8879661
Filing Date: 2014-11-04
Classification: H04L

Abstract:
1. A signal processing apparatus configured to correct a distortion introduced by a signal processing path into a processed signal, the signal processing apparatus comprising: a transformer that transforms the processed signal into a transformed signal in frequency domain; a processor that determines a first correction function and a second correction function upon the basis of a transfer function of the signal processing path; a first multiplier that multiplies values of the transformed signal with coefficients of the first correction function to obtain a first corrected signal; a signal reverser that reverses an order of values in a copy of the transformed signal to obtain a reversed transformed signal; a second multiplier that multiplies values of the reversed transformed signal with coefficients of the second correction function to obtain a second corrected signal; and an adder that adds the first corrected signal and the second corrected signal to obtain a corrected output signal, wherein the processor is configured to determine the first correction function C wherein H