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AssigneeNEC Corporation
InventorManabu Arikawa
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A frequency domain filter receives an input signal in a frequency domain being blocked by an overlap-save method. The frequency domain filter multiplies the input signal in the frequency domain by a coefficient for each frequency. A coefficient updating unit adaptively updates a filter coefficient of the frequency domain filter. A constraint operation unit performs an operation of a constraint on a filter coefficient of the frequency domain filter in such a way as not to be affected by distortion caused by wraparound from both ends of a block to the output signal. A frequency at which the constraint operation unit performs the operation of the constraint is lower than a frequency at which the coefficient updating unit adaptively updates the filter coefficient of the frequency domain filter.
An equalization signal processing circuit comprising:
An equalization signal processing method of performing equalization signal processing, the equalization signal processing including:
A non-transitory computer readable medium storing a program for causing a processor to execute equalization signal processing, the equalization signal processing including:
Dependencies are inferred from the claim text.