Patent ID: 7260036
Filing Date: 2007-08-21
Classification: G11B

Abstract:
1. A data processor compatible for use with a first optical disc recording medium and a second optical disc recording medium, wherein the first optical disc recording medium records first position information corresponding to a first recording format, and the second optical disc recording medium records second position information corresponding to a second recording format, the data processor comprising: a first timing generation circuit which generates a first timing signal based on first position information read from the first optical disc recording medium; a second timing generation circuit which generates a second timing signal based on second position information read from the second optical disc recording medium; a first modulation circuit connected to the first timing generation circuit which performs a first modulation process on recording data for recording on the first optical disc recording medium in accordance with the first timing signal and generates first modulated data; a second modulation circuit connected to the second timing generation circuit which performs a second modulation process on the recording data for recording on the second optical disc recording medium in accordance with the second timing signal and generates second modulated data; and a write strategy circuit connected to the first and second modulation circuits which generates a first write signal, which is written to the first optical disc recording medium, from the first modulated data, and a second write signal, which is written to the second optical disc recording medium, from the second modulated data.