Recording medium, method of configuring control information thereof, recording and reproducing method using the same, and apparatus thereof
AssigneeLG Electronics Inc.
InventorJin Kim
Life of this patent
Estimating the term…
Abstract
In a recordable optical disc including at least one recording layer, write strategy information is recorded within disc control information, so that standardized disc control information can be uniformly applied to data recording and reproduction. At least one disc information is recorded as the disc control information within the management area. The disc control information is recorded per at least one write strategy type for a same writing speed and recording layer. The write strategy type recorded in the corresponding disc information is determined by recording write strategy parameters of the optionally determined write strategy type among applicable write strategy types.
Claims25
A recording medium having data structure of a control information with at least one recording layer, the control information including at least two information units for lower writing speed and higher writing speed, characterized in that first information unit for lower writing speed includes write strategy parameters for first write strategy type to be used for the lower writing speed, wherein the first write strategy type is one of a plurality of write strategy types applicable to the lower writing speed, and mandatory type to be used necessarily for at least the lower writing speed or a preferred type determined based on a preference among the plurality of write strategy types applicable to the lower writing speed, and the second information unit for higher writing speed includes write strategy parameters for a write strategy type to be used for the higher writing speed, wherein the write strategy type for the higher writing speed is the same as the first write strategy type or a write strategy type different than the first write strategy type, and mandatory type to be used necessarily for at least the higher writing speed or a preferred type determined based on a preference among the plurality of write strategy types applicable to the higher writing speed.
A recording method comprising:
- reading a control information from a specific area of a recording medium, the control information including first information unit for a lower writing speed and second information unit for a higher writing speed, wherein the first information unit for lower writing speed includes write strategy parameters for first write strategy type to be used for the lower writing speed, wherein the first write strategy type is one of a plurality of write strategy types applicable to the lower writing speed, and mandatory type to be used necessarily for at least the lower writing speed or a preferred type determined based on a preference among the plurality of write strategy types applicable to the lower writing speed, and the second information unit for higher writing speed includes write strategy parameters for a write strategy type to be used for the higher writing speed, wherein the write strategy type for the higher writing speed is the same as the first write strategy type or a write strategy type different than the first write strategy type, and mandatory type to be used necessarily for at least the higher writing speed or a preferred type determined based on a preference among the plurality of write strategy types applicable to the higher writing speed;
- and recording data at a specific writing speed based on at least one information unit among the first and second information units.
An apparatus of data on a recording medium, comprising:
- a pickup unit reading a control information from a specific area of the recording medium, the control information including first information unit for a lower writing speed and second information unit for a higher writing speed, wherein the first information unit for lower writing speed includes write strategy parameters for first write strategy type to be used for the lower writing speed, wherein the first write strategy type is one of a plurality of write strategy types applicable to the lower writing speed, and mandatory type to be used necessarily for at least the lower writing speed or a preferred type determined based on a preference among the plurality of write strategy types applicable to the lower writing speed, and the second information unit for higher writing speed includes write strategy parameters for a write strategy type to be used for the higher writing speed, wherein the write strategy type for the higher writing speed is the same as the first write strategy type or a write strategy type different than the first write strategy type, and mandatory type to be used necessarily for at least the higher writing speed or a preferred type determined based on a preference among the plurality of write strategy types applicable to the higher writing speed;
- and
- a control unit controlling a pickup unit to record data at a specific writing speed based on at least one information unit among the first and second information units.
Dependencies are inferred from the claim text.