Abstract
An improved method for canceling crosstalk from adjacent tracks using multibeam readout is proposed. While narrowing track pitch, the number of tracks covered with the light spot increases. In this case crosstalk in subsignals also increases in the multibeam crosstalk cancellation process. However if the data in the subspot signals were already decoded, even tempolary, they are able to be used for an improved crosstalk cancellation without crosstalk from the outside of the pointing tracks.
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