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US 10,241,686 B2Granted
Storage device, information processing device, data access method and program
AssigneeSony Semiconductor Solutions Corporation
InventorsKeitarou Kondou, Makoto Noda
Life of this patent
Estimating the term…
Abstract
A storage device includes a recording medium in which data is recorded on a cluster basis, and a memory that stores a file allocation table (FAT) in which disposition information regarding the cluster is recorded.
Claims17
A storage device comprising:
- a recording medium that is configured to record data on a cluster basis;
- a memory that stores a file allocation table (FAT) having disposition information regarding the data that is recorded on the cluster basis, wherein the memory is separate from the recording medium, and wherein the memory does not store the data that is recorded on the cluster basis;
- a communication bus communicatively that directly connects the recording medium to the memory;
- and
- a memory interface directly connected to the memory, the memory interface configured to provide an information processing device access to the FAT stored in the memory.
2 more elements
A system comprising:
- a storage device including:
- a recording medium that is configured to record data on a cluster basis,
- a memory that stores a file allocation table (FAT) having disposition information regarding the data that is recorded on the cluster basis, wherein the memory is separate from the recording medium, and wherein the memory does not store the data that is recorded on the cluster basis,
- a communication bus communicatively that directly connects the recording medium to the memory, and
- a memory interface directly connected to the memory, the memory interface configured to provide access to the FAT stored in the memory;
- and
- an information processing device including
- a control unit that is configured to gain access to a file recorded in the recording medium of the storage device, and
- a second memory interface that is configured to communicate with the memory interface of the storage device to access the FAT stored in the memory of the storage device.
6 more elements
A data access method, the method comprising:
- designating, by a control unit of an information processing device, an address on an address line between a memory interface of the information processing device and a second memory interface of a storage device;
- and
- acquiring, by the control unit, disposition information of a file allocation table (FAT) stored in a memory of the storage device at the designated address via a data line between the memory interface of the information processing device and the second memory interface of the storage device, wherein the disposition information is regarding data that is recorded on a cluster basis in a recording medium of the storage device,
- wherein the memory is separate from the recording medium, wherein the memory does not store the data that is recorded on the cluster basis, wherein the memory is directly connected to the second memory interface, and wherein a communication bus of the storage device directly connects the mrmory to the recording medium.
1 more element
A non-transitory computer readable medium storing a program comprising instructions executable by a processing unit to perform operations comprising:
- designating an address on an address line between a memory interface of an information processing device and a second memory interface of a storage device, and
- acquiring disposition information of a file allocation table (FAT) stored in a memory of the storage device at the designated address via a data line between the memory interface of the information processing device and the second memory interface of the storage device, wherein the disposition information is regarding data that is recorded on a cluster basis in a recording medium of the storage device,
- wherein the memory is separate from the recording medium, wherein the memory does not store the data that is recorded on the cluster basis, wherein the memory is directly connected to the second memory interface, and wherein a communication bus of the storage device directly connects the memory to the recording medium.
Dependencies are inferred from the claim text.