| 摘要 |
An ATIP decoder (6) detects an ATIP synchronization signal from a wobble signal which was recorded on an optical disk (1) as a wobble of pregrooves formed on the optical disk. A CD encoder (7) performs EFM modulation on information to be recorded, inserting a subcode frame synchronization signal into the information to be recorded at a predetermined position, and outputting an EFM pattern to be recoded. The CD encoder includes an EFM outputting timing control circuit (13) which controls a timing at which the EFM pattern is output. The EFM outputting timing control circuit performs information recording timing initialization, before the EFM pattern is actually recorded on the optical disk, in which initialization the phase between a timing at which the ATIP synchronization signal is detected from the optical disk and a timing at which the subcode frame synchronization signal is recorded on the optical disk is adjustable. <IMAGE>
|
