Disk area detection method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-In Ma, Kwan-Joon Kim
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Abstract
A disk area type detection method and apparatus, the disk area type detection method including detecting the difference between a side push-pull (SPP) 1 signal and an SPP2 signal; and determining whether an area is a storage medium related information area or a user data area on the disk, based on the detected difference. According to the method and apparatus, the user data area and the storage medium related information area of the disk can be easily distinguished, allowing phase locked loop (PLL) control to be performed appropriately.
Claims21
A disk area type detection method comprising:
- detecting a difference between a side push-pull (SPP) 1 signal and an SPP2 signal based on signals reflected from the disk;
- and
- determining whether an area on the disk is a storage medium related information area or a user data area, based on the difference.
A disk area type detection apparatus detecting a type of an area of a disk, comprising:
- a difference signal detection unit which detects a difference between a side push-pull (SPP)1 signal and a SPP2 signal based on signals reflected from the disk;
- and
- an area determination unit which determines whether an area is a storage medium related information area or a user data area on the disk, based on the detected difference.
A disk area type detection method comprising:
- detecting a phase difference between a first signal and a second signal based on signals reflected from the disk;
- and
- determining whether an area on the disk is a first type area or a second type area, based on the phase difference between first and second signals.
Dependencies are inferred from the claim text.