Patent ID: 7835243
Filing Date: 2010-11-16
Classification: G11B

Abstract:
1. A protective system for data write of an optical disk drive, which produces a pseudo synchronization signal in order to allow the optical disk drive to perform a write operation on an optical disk, the system comprising: a wobble synchronization detection and count device, which receives a wobble synchronization signal extracted from the optical disk and a wobble synchronization status, and outputs a target synchronization match signal when the wobble synchronization status is at ready and outputs a synchronization miss signal when the wobble synchronization signal cannot be extracted from the optical disk and the wobble synchronization status is at fail; a synchronization protector, which is connected to the wobble synchronization detection and count device and produces the pseudo synchronization signal by receiving the synchronization miss signal for indicating that the optical disk drive cannot properly obtain the wobble synchronization signal from the optical disk, wherein the synchronization protector produces the pseudo synchronization signal in accordance with a last detected wobble synchronization signal; and a write controller, which is connected to the wobble synchronization detection and count device and the synchronization protector and produces a write signal by receiving the target synchronization match signal or the pseudo synchronization signal, thereby driving the optical disk drive to perform the write operation on the optical disk.