Writing method for optical disk drive
AssigneeQuanta Storage Inc.
InventorsPo-Wei Lee, Ting-Gui Peng, Song-Rui Chen
Life of this patent
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Abstract
A writing method for an optical disk drive includes receiving a command to write a disc; implementing an optimum power control (OPC) test for a predetermined data transfer rate to obtain a relation of a beta parameter to writing power; acquiring a writing power for the predetermined data transfer rate with a target beta parameter; calculating the energy area ratio of writing strategies for every data transfer rate; multiplying the energy area ratio by the writing power for the predetermined data transfer rate to produce the writing power for every data transfer rate; and compensating the writing power with automatic writing control.
Claims9
A writing method for an optical disk drive, comprising:
- (1) receiving a command to write a disc;
- (2) implementing an optimum power control (OPC) test for a predetermined data transfer rate to obtain a relation of beta parameter to writing power;
- (3) acquiring a writing power at the predetermined data transfer rate with a target beta parameter according to the relation of the beta parameter to the writing power;
- (4) calculating ratios of energy areas of write strategies for every data transfer rate with the predetermined data transfer rate, wherein each of the energy area is a multiplication product of a modulation writing power of write strategies of each mark and an interval time;
- (5) multiplying the ratio of the energy area by the writing power at the predetermined data transfer rate to produce the writing power at each data transfer rate;
- and
- (6) finishing writing data.
Dependencies are inferred from the claim text.