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Information recording medium and its control method

A technology of recording medium and control method, which is applied in the directions of information storage, data recording, solid medium carrier, etc., and can solve the problem that the recording medium cannot access data, etc.

Inactive Publication Date: 2006-12-13
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, if the file system of the recording medium is changed to a file system other than the FAT file system, a problem arises that a device corresponding to the conventional FAT file system cannot access data to the recording medium.

Method used

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  • Information recording medium and its control method
  • Information recording medium and its control method
  • Information recording medium and its control method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] Embodiments of the information recording medium and its control method according to the present invention will be described below with reference to the drawings.

[0049] 1. Composition of recording medium and data processing device

[0050] exist figure 1 The configurations of the information recording medium and the data processing device according to the embodiment of the present invention are shown in . The recording medium 100 is composed of a host interface unit 110 , a control unit 120 , and a data storage unit 130 .

[0051] The host interface unit 110 exchanges information with the data processing device 200 serving as the host of the recording medium 100 .

[0052] The data storage unit 130 is a mechanism for storing data, and has an area where data can be read and written by the data processing device 200 . The data storage unit 130 includes N (N is an integer greater than or equal to 2) recording areas #1, #2, . . . #N. Data stored in each recording area...

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Abstract

An information recording medium (100) in / from which a data processor writes / reads data. The information recording medium (100) comprises a host interface section (110) for communicating with a data processor (200), a data storage section (130) having a plurality of recording areas (#1,...,#N) where data is stored, and an area information storage section (124) for storing the information about each recording area of the data storage section. The area information storage section (124) stores the information about an address attribute of each recording area of the data storage section (130). The information about the address attribute represents an address unit (unit of a sector, or unit of a byte) specified in accessing to a recording area.

Description

technical field [0001] The present invention relates to an information recording medium having a plurality of recording areas and a method for controlling the recording medium. Background technique [0002] Recording media for recording digital data such as music content, video content, and still image content (hereinafter referred to as "data") include various types such as semiconductor recording media, magnetic disks, optical disks, and magneto-optical disks. In particular, since semiconductor recording media are characterized by miniaturization and weight reduction, they are rapidly spreading mainly in portable devices such as digital cameras and mobile phone terminals. Typical semiconductor recording media include SD memory card (registered trademark), memory stick (registered trademark), compact flash (registered trademark), and the like. [0003] The management of data stored in the recording areas of these recording media is realized by the file system. In the file...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/00G06F3/06G06K19/00G11B20/12G11B27/00G11B27/32
CPCG11B2220/61G11B20/12G11B27/329
Inventor 宗广和须藤正人井上信治前田卓治藤村一哉井上由纪子越智诚
Owner PANASONIC CORP