Methods and systems for tuning write strategy parameters of an optical storage device
AssigneeMediatek Inc.
InventorsPi-Hai Liu, Yuh Cheng, Chih-Ching Yu, Chih-Hsiung Chu
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Abstract
A system, for tuning a plurality of write strategy parameters of an optical storage device, includes: a run-length limited (RLL) meter for detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device; and a calculation module coupled to the RLL meter for performing calculations according to the lengths to generate a plurality of calculation results; wherein the write strategy parameters are tuned according to the calculation results.
Claims21
A method for tuning a plurality of write strategy parameters of an optical storage device, the method comprising:
- detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device;
- performing calculations according to the lengths and a plurality of data types to generate a plurality of calculation results respectively corresponding to the data types, each of the data types corresponding to at least a specific target pit length or at least a specific target land length;
- and
- utilizing the calculation results for tuning the write strategy parameters respectively corresponding to the data types, the write strategy parameters comprising one or more power levels of at least one write pulse corresponding to one or more data types.
A method for tuning a plurality of write strategy parameters of an optical storage device, the method comprising:
- detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device;
- performing calculations according to the lengths and a plurality of data types to generate a plurality of calculation results respectively corresponding to the data types, each of the data types corresponding to at least a specific target pit length or at least a specific target land length;
- and
- utilizing the calculation results for tuning the write strategy parameters respectively corresponding to the data types, the write strategy parameters comprising an overdrive (OD) width of at least one write pulse corresponding to one or more data types.
A method for tuning a plurality of write strategy parameters of an optical storage device, the method comprising:
- detecting a plurality of lengths comprising pit lengths and land lengths, each pit length corresponding to a pit on an optical storage medium accessed by the optical storage device, each land length corresponding to a land on the optical storage medium;
- performing calculations on the pit lengths and the land lengths of the plurality of lengths to generate a plurality of calculation results;
- and
- utilizing the calculation results for tuning the write strategy parameters comprising at least one power level, whereby an average power value is substantially kept constant or within a specific range.
A system for tuning a plurality of write strategy parameters of an optical storage device, the system comprising:
- a run-length limited (RLL) meter for detecting a plurality of lengths, each length corresponding to a pit or a land on an optical storage medium accessed by the optical storage device;
- a calculation module coupled to the RLL meter for performing calculations according to the lengths to generate a plurality of calculation results;
- and
- a controller, coupled to the RLL meter and the calculation module, the controller utilizing the calculation results for tuning the write strategy parameters.
Dependencies are inferred from the claim text.