Information processing device, information processing method, and program

An information processing method executed in an information processing device, the method comprising:

• outputting, by a photo detector, a readout signal from a reproduction track of an information recording disc;
• outputting, by an adjacent track reproduction binary signal supply unit, a binary signal (binary data) obtained from a reproduction signal of an adjacent track of the reproduction track;
• inputting, by a multi-input adaptive equalizer, the readout signal from the reproduction track to an equalizer unit;
• inputting, by the multi-input adaptive equalizer, an adjacent track reproduction binary signal to another equalizer unit;
• inputting, by the multi-input adaptive equalizer, an output of the equalizer unit and an output of the another equalizer unit to an adder;
• outputting, by the adder, an equalization signal by an adaptive equalization process based on an input signal;
• and
• executing, by a binarization processing unit, a binarization process based on the equalization signal and generating a reproduction signal of the reproduction track.

A non-transitory computer-readable medium having embodied thereon a program, which when executed by a computer causes the computer to execute an information processing method, the method comprising:

• outputting, by a photo detector, a readout signal from a reproduction track of an information recording disc;
• outputting, by an adjacent track reproduction binary signal supply unit, a binary signal (binary data) obtained from a reproduction signal of an adjacent track of the reproduction track;
• inputting, by a multi-input adaptive equalizer, the readout signal from the reproduction track to an equalizer unit;
• inputting, by the multi-input adaptive equalizer, an adjacent track reproduction binary signal to another equalizer unit;
• inputting, by the multi-input adaptive equalizer, an output of the equalizer unit and an output of the another equalizer unit to an adder;
• outputting, by the adder, an equalization signal by an adaptive equalization process based on an input signal;
• and
• generating, by a binarization processing unit, a reproduction signal of the reproduction track by executing a binarization process based on the equalization signal.