Information processor, information processing method and medium recording information processing method
AssigneeSony Corporation
InventorHajime Nishimura
Life of this patent
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Abstract
As for a region in relation to a secondary defect, a recording means such as a memory or the like is separately used to carry out a recording and reproducing process. Thus, even when an exchange allocating process is carried out so as to ensure an access with a high reliability, data may be processed continuously.
Claims19
An information processing apparatus for converting a parameter of an access command into a physical address of an information recording surface of a recording medium, and accessing said recording medium in accordance with the physical address, said information processing apparatus comprising:
- an exchange allocating processing means for detecting a region in relation to a secondary defect from said information recording surface, and setting one exchange region to be used for a recording and reproducing process so as to replace said region in relation to said secondary defect;
- wherein a secondary defect list is detected by a read-write data channel and a servo circuit in accordance with an access command for carrying out said recording and reproducing process;
- a defect judgment means for judging said physical address based on said access command by using said physical address of the region in relation to said secondary defect as a reference;
- and
- an exchanging processing means for carrying out the process according to said access command by using a predetermined recording means different from said recording medium, for the region in relation to said secondary defect among said physical address based on said access command, in accordance with a judged result by said defect judgment means,
- wherein a primary defect is detected at a sector unit of the recording medium and registered in a primary defect list by said primary defect physical address.
An information processing method of converting a parameter of an access command into a physical address of an information recording surface of a recording medium, and accessing said recording medium in accordance with the physical address, the information processing method comprising the steps of:
- allocating process for detecting a region in relation to a secondary defect from said information recording surface, and setting one exchange region to be used for a recording and reproducing process so as to replace the region in relation to said secondary defect;
- wherein a secondary defect list is detected by a read-write data channel and a servo circuit in accordance with an access command for carrying out said recording and reproducing process;
- judging said physical address based on said access command, by using said physical address of the region in relation to said secondary defect as a reference;
- and
- carrying out the process according to said access command by using a predetermined recording means different from said recording medium, for the region in relation to said secondary defect among said physical address based on said access command, in accordance with a judged result by said defect judging step,
- wherein a primary defect is detected at a sector unit of the recording medium and registered in a primary defect list by said primary defect physical address.
A recording medium for recording an information processing method of converting a parameter of an access command into a physical address of an information recording surface of a recording medium, and accessing said recording medium in accordance with the physical address said information processing method comprising the steps of:
- detecting a region in relation to a secondary defect from said information recording surface, and setting one exchange region to be used for a recording and reproducing process so as to replace the region in relation to said secondary defect;
- wherein a secondary defect list is detected by a read-write data channel and a servo circuit in accordance with an access command for carrying out said recording and reproducing process;
- judging said physical address based on said access command, by using said physical address of the region in relation to said secondary defect as a reference;
- and
- carrying out the process according to said access command by using a predetermined recording means different from said recording medium, for the region in relation to said secondary defect among said physical address based on said access command, in accordance with a judged result by said defect judging step,
- wherein a primary defect is detected at a sector unit of the recording medium and registered in a primary defect list by said primary defect physical address.
Dependencies are inferred from the claim text.