Device and method for storing information
First Claim
1. Storage device for recording and retrieving information blocks in a recordable area on a removable record carrier, which device comprises data interface means for receiving commands, in particular writing and reading commands, and for transferring the information blocks, in particular user data blocks and meta data blocks comprising file management information formatted according to a file management system, a non-volatile memory, meta data block detection means for detecting information blocks comprising meta data, and control means for controlling the recording and retrieving of the information blocks, which control means comprise means for storing the meta data blocks in the non-volatile memory, and for detecting an update condition, which update condition relates to updating the removable record carrier to an updated state in which the record carrier is usable in a different storage device, and for, in the event that the update condition has been detected, transferring the meta data blocks from the non-volatile memory to the record carrier.
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Accused Products
Abstract
A storage device for recording and retrieving information blocks on a removable record carrier is described. Via an interface (44) the device receives commands, user data blocks and meta data blocks comprising file management information. The device has a non-volatile memory (31), a meta data block detection unit (47), and a control unit (20). The device temporarily stores the meta data blocks in the non-volatile memory until detecting an update condition, e.g. an eject command. The update condition indicates that the removable record carrier is to be updated to a state in which the record carrier is usable in a different storage device. In the event that the update condition has been detected the meta data blocks are transferred from the non-volatile memory to the record carrier (49).
38 Citations
9 Claims
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1. Storage device for recording and retrieving information blocks in a recordable area on a removable record carrier, which device comprises
data interface means for receiving commands, in particular writing and reading commands, and for transferring the information blocks, in particular user data blocks and meta data blocks comprising file management information formatted according to a file management system, a non-volatile memory, meta data block detection means for detecting information blocks comprising meta data, and control means for controlling the recording and retrieving of the information blocks, which control means comprise means for storing the meta data blocks in the non-volatile memory, and for detecting an update condition, which update condition relates to updating the removable record carrier to an updated state in which the record carrier is usable in a different storage device, and for, in the event that the update condition has been detected, transferring the meta data blocks from the non-volatile memory to the record carrier.
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8. Method of storing information blocks in a recordable area on a removable record carrier, which method comprises
receiving commands on a data interface, in particular writing and reading commands, and transferring the information blocks via the data interface, in particular user data blocks and meta data blocks comprising file management information formatted according to a file management system, meta data block detecting by detecting information blocks comprising meta data, and controlling recording and retrieving of the information blocks, which controlling comprises storing the meta data blocks in a non-volatile memory, and detecting an update condition, which update condition relates to updating the removable record carrier to an updated state in which the record carrier is usable in a different storage device, and, in the event that the update condition has been detected, transferring the meta data blocks from the non-volatile memory to the record carrier.
Specification