Patent ID: 7012861
Filing Date: 2006-03-14
Classification: G11B

Abstract:
1. A track jump method performed on a disc on which a plurality of header areas having different phases are disposed between recordable data areas, in which information for recognition of reference frequency is provided in wobbling shape on a track, to separate the data areas, the track jump method comprising the steps of: receiving a track jump command; checking whether a current location of a pickup head is the end of a header area when the track jump command is received; standing by without performing a track jump when the current location of the pickup head is not the end of the header area, and performing the track jump with inhibition of a phase locked loop (PLL) of a wobble signal and with a generation of a previously generated PLLed-wobble signal when the current location of the pickup head is the end of the header area; and resuming the PLL of the wobble signal when the track jump is completed.