Patent ID: 6125089
Filing Date: 2000-09-26
Classification: G11B

Abstract:
A recording timing control circuit of an optical disk driving device, comprising:pregroove information detecting means for detecting an ATIP synchronization signal from an input wobble signal recorded on an optical disk as a wobble of pregrooves formed on the optical disk; andencoding means for modulating information to be recorded, inserting a subcode frame synchronization signal into the information to be recorded at a predetermined position, and outputting a pattern to be recorded, and wherein said encoding means comprises information outputting timing control means for controlling a timing at which the information to be recorded is output; andwherein said information outputting timing control means performs information recording timing initialization to initialize the phase between a timing at which the ATIP synchronization signal is detected from the disk and a timing at which the subcode frame synchronization signal is recorded on the optical disk, and wherein said initialization is performed before the information to be recorded is actually recorded on the optical disk, and wherein said recording timing control circuit is arranged such that the phase between the timing at which the ATIP synchronization signal is detected and the timing at which the subcode frame synchronization signal is recorded is adjustable.