Patent ID: 8345802

Claim:
A receiver for a digital modulated signal, which receives a multi-carrier modulated signal and demodulates the received signal, comprising: an interference removing circuit configured to remove an inter-symbol interference from a received signal comprising: a replica generation unit configured to receive a digital complex baseband signal based on the received signal and to generate a replica signal including an interference removing component derived from a plurality of successive transmission symbols by processing the digital complex baseband signal in a time region on the basis of a transmission path response estimated from the digital complex baseband signal; and a combining unit configured to combine the interference removing component included in the replica signal with the digital complex baseband signal in order to remove a signal component derived from adjacent transmission symbols while the received signal has been affected by an inter-symbol interference and output a combined signal, and to output the digital complex baseband signal during a period in which combination is not performed; a Fourier transformer configured to transform a signal supplied from the combining unit from a time region into a frequency region by Fourier transform; and a demodulation circuit configured to demodulate a transformed signal supplied from the Fourier transformer.