TRANSFER METHOD, TRANSFER SYSTEM, TRANSMITTER APPARATUS AND RECEIVER APPARATUS

摘要

To provide a transfer method and others wherein unused areas are efficiently utilized to achieve a high-speed communication. In a transmitter apparatus, a modulated digital signal is converted to the spectra of frequency bands by a converting part. The converted spectra are further distributed into a plurality of used bands established in main and auxiliary bands. The digital signal, which is related to the spectra in the main and auxiliary bands including the spectra as distributed by a distributing part, is transmitted by a transmitting part to a receiver apparatus. A receiving part of the receiver apparatus receives the transmitted digital signal related to the spectra in the main and auxiliary bands. The spectra in the used bands as established by a used-band establishing part are extracted by an extracting part. Finally, the spectra as extracted by the extracting part are combined by a combining part.