Recording methods and devices for recording information on dual layer recordable disks
AssigneeKoninklijke Philips N.V.
InventorJohannus Leopoldus Bakx
Life of this patent
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Abstract
The invention relates to recording methods for recording information on a dual layer recordable disk, and to corresponding recording devices. In one such method and recording device the OPC-area is variably located on a layer of the disk. In a preferred embodiment the OPC-area is located relative close to the radius where the data stream switches from the first layer to the second layer. This reduced additional time required for jumping to a fixed OPC-area. Furthermore, in another such method and device the information to be recorded is equally divided over both layers of the dual layer disc. This avoids additional time required for finalization.
Claims26
A recording method for recording information on a dual layer recordable disk, the method comprising an act of:
- performing an Optimum Power Control (OPC) procedure for determining an actual optimum writing power, the Optimum Power Control procedure being performed in an OPC-area on the disk, the OPC-area being variably located on a second layer of the dual layer disk, the variable location being selected based on an amount of information to be recorded on a first layer of the dual layer disk.
A recording device for recording information on a dual layer recordable disk, the device comprising a portion configured to perform an Optimum Power Control (OPC) procedure for determining an actual optimum writing power, the OPC procedure being performed in an OPC-area on the disk, and the portion being configured to variably locate the OPC-area on a second layer of the dual layer disk, the variable location being selected based on an amount of information to be recorded on a first layer of the dual layer disk.
A recording method for recording information on a dual layer recordable disk, the method comprising acts of:
- dividing the information to be recorded into substantially equally divided parts between a first layer and a second layer of the dual layer disk, and
- performing an Optimum Power Control (OPC) procedure for determining an actual optimum writing power, the OPC procedure being performed in an OPC-area on the disk, the OPC-area being variably located on a second layer of the dual layer disk, the variable location being selected based on an amount of information to be recorded on a first layer of the dual layer disk.
A recording device for recording information on a dual layer recordable, the device comprising a portion configured to divide the information to be recorded into substantially equally divided parts between a first layer and a second layer of the dual layer disk, and the portion being configured to perform an Optimum Power Control (OPC) procedure for determining an actual optimum writing power, the OPC procedure being performed in an OPC-area on the disk, the OPC-area being variably located on a second layer of the dual layer disk, the variable location being selected based on an amount of information to be recorded on a first layer of the dual layer disk.
A recording method for recording a data stream of information on a multiple layer recordable disk comprising the steps of:
- providing the multiple layer recordable disk with a plurality of recording layers configured such that there is a first layer that is recorded upon first and at least one other layer that is recorded on after the first layer has been recorded upon;
- performing an Optimum Power Control (OPC) procedure for determining an actual optimum writing power on the at least one other layer, wherein said Optimum Power Control procedure is performed in an OPC-area on the disk, the OPC-area being variably located on the at least one other layer, the variable location being at a radius close to the radius where the data stream switches layers when reading or writing a stream of data to the disk.
A recording device for recording information on a dual layer recordable disk, the device comprising:
- a portion configured to divide the information to be recorded into substantially equally divided parts between a first layer and a second layer of the dual layer disk, and the portion being configured to perform an Optimum Power Control (OPC) procedure for determining an actual optimum writing power, the OPC procedure being performed in an OPC-area on the disk, the OPC-area being variably located on a second layer of the dual layer disk, the variable location being selected based on an amount of information to be recorded on a first layer of the dual layer disk.
A dual layer disk comprising:
- an Optimum Power Control (OPC) area written on the disk by an OPC procedure for determining an actual write power, the OPC-area being variably located on a second layer of the dual layer disk, the variable location being selected based on an amount of information recorded on a first layer of the dual layer disk.
A duel layer disk comprising:
- substantially equal portions of information recorded in a first layer and a second layer;
- an Optimum Power Control (OPC) area written by an OPC procedure for determining an actual optimum writing power on the second layer, wherein said Optimum Power Control procedure is performed in an OPC-area on the disk, the OPC-area being variably located on the second layer, the variable location being at a radius close to the radius where the data stream switches layers when reading or writing a stream of data to the disk.
Dependencies are inferred from the claim text.