Patent ID: 7158465
Filing Date: 2007-01-02
Classification: G11B

Abstract:
1. An apparatus for an optical storage medium, the apparatus comprising: a relative address detector which detects relative addresses that are recorded on the optical storage medium; a relative address continuity detector which determines whether a number of continuances between the relative addresses output from the relative address detector is at least a predetermined number N; a relative address corrector which corrects a current relative address of the optical storage medium that is not consecutive to a previous one of the relative addresses and outputs the corrected relative address, after the relative address continuity detector determines that the number of continuances between the relative addresses is at least the predetermined number N; a wobble phase-locked loop (PLL) unit which outputs a PLL wobble signal of the optical storage medium; a phase difference detector which detects a phase difference between a reference signal and the PLL wobble signal; a phase difference corrector which compensates for the phase difference with respect to the PLL wobble signal; an LPP sync detector which detects a LPP signal of the optical storage medium, and a LPP sync using the phase difference compensated PLL wobble signal; and an LPP data converter which converts the LPP signal input after the LPP sync is detected, to an original signal of “1” or “0.”