Signal processing device and method

A signal processing method comprising:

• calculating one or more correlation values in a first interval and a second interval between a received signal and a pattern of a waveform of a known signal, the calculated one or more correlation values corresponding to maximum values of a product of the received signal and the known signal in the first interval and the second interval;
• outputting a correlation signal based on the calculated one or more correlation values in a time corresponding to one symbol period;
• determining whether the received signal is modulated by the known signal in the first interval and the second interval based on the correlation signal and a first enable signal;
• and
• identifying a symbol from a plurality of symbols based on a result of the determination in the symbol period,
• wherein a series of the plurality of symbols are identified based on the correlation signal and a second enable signal, different from the first enable signal, and
• wherein the first enable signal and the second enable signal are generated based on the correlation signal and the received signal.

A signal processing device comprising:

• a correlation signal output unit configured to receive a signal transmitted from another device and calculate one or more correlation values between the received signal and a pattern of a waveform of a known signal in a first interval and a second interval, the calculated one or more correlation values corresponding to maximum values of a product of the received signal and the known signal in the first interval and the second interval, and output a correlation signal based on the calculated one or more correlation values that correspond to the maximum values in a time corresponding to one symbol period;
• a signal determiner configured to determine whether the received signal is modulated in the first interval and the second interval by the known signal based on the correlation signal and a first enable signal;
• and
• an identifier configured to identify a symbol from a plurality of symbols based on the determination in the symbol period,
• wherein the identifier is configured to identify a series of the plurality of symbols based on the correlation signal and a second enable signal, different from the first enable signal, and
• wherein the first enable signal and the second enable signal are generated based on the correlation signal and the received signal.