Patent ID: 7421627
Filing Date: 2008-09-02
Classification: G11B,H03M

Abstract:
1. A data recording apparatus for recording data on an optical disc, comprising: an optical pickup having a laser diode; means for forming a data block organized as data columns and data rows, each data row comprising bytes and each data column forming an error correcting code; a signal processing means for rearranging the order of bytes in each data row according to plural rearranging rules to produce a rearranged data block, including rearranging a first row of data according to a first rearranging rule and rearranging at least a second row of data according to a second rearranging rule different from the first rearranging rule; and a modulation means for modulating a data row in which order of bytes was rearranged by the signal processing means; wherein the optical pickup FOCUSES laser light emitted by the laser diode on a recording layer of the optical disc in order to record a data row modulated by the modulation means on the recording layer.