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Information processing device for identifying the type of recording medium and method for forming area on recording medium executed in information processing device

A technology for information processing devices and recording media, which is applied in the field of writing devices, can solve problems such as constraints and impossibility of popularization, and achieve the effect of improving reliability and convenience

Inactive Publication Date: 2007-01-31
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the disc cartridge is sealed with a case, and although the cost of ensuring reliability is paid, the video data can only be written at the same time as the cheap bare disc. universal

Method used

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  • Information processing device for identifying the type of recording medium and method for forming area on recording medium executed in information processing device
  • Information processing device for identifying the type of recording medium and method for forming area on recording medium executed in information processing device
  • Information processing device for identifying the type of recording medium and method for forming area on recording medium executed in information processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] In this embodiment, a rewritable optical disc having a sector structure will be described. As such optical discs, for example, DVD-RAM and Blu-ray discs are known. However, since the sector structure itself is well known, in this embodiment, reference is also made to figure 1 , a general optical disc having a sector structure will be described as "optical disc 1". In addition, an optical disc is an example of an optical recording medium, and is not limited to a disc shape. It may also be a card capable of optically reading data as another optical recording medium.

[0065] figure 1 The structure of the optical disc 1 is shown. The optical disc 1 forms tracks 2 on concentric circles. The sector 3 divided in detail is formed on each track. An absolute address called a physical sector number PSN (Physical Sector Number) is added to each sector 3 .

[0066] The optical disc 1 is composed of a disc information area 4 and a data recording area 5 . The disc information...

Embodiment approach 2

[0164] In this embodiment, an information processing device capable of determining other types of optical discs having different physical characteristics will be described. That is, in Embodiment 1, the type of one type of optical disc is determined based on its external shape, and in this embodiment, the type of optical disc is determined based on the difference in physical properties (recordable capacity) of the recording layer.

[0165] Since the information processing device in this embodiment has the same Image 6 Components that are the same as those of the information processing device 100 shown will be described below as "information processing device 100", and descriptions thereof will be omitted.

[0166] Figure 14 Indicates the type of optical disc that can be judged in this embodiment. The information processing device 100 in this embodiment first determines which of the medium DA and the medium DB is loaded. For example, the medium DA is a DVD-RAM disc with a ...

Embodiment approach 3

[0179] In this embodiment, an information processing device capable of determining other types of optical discs having different physical characteristics (appearance shape of the optical disc) will be described.

[0180] Since the information processing device in this embodiment has the same Image 6 Substantially the same constituent elements of the information processing device 100 shown will be described below as "information processing device 100", and descriptions of these will be omitted. However, since the specific configuration related to the cartridge detection switch is different from that of the cartridge detection switch 113 ( Figure 7 (a) and (b)) are not used, and will be explained below.

[0181] Figure 15 (a) and (b) show the arrangement of the cassette detection switch of the information processing device 100 in this embodiment. Figure 15 (a) is a plan view, Figure 15 (b) is a sectional view. The tray 112 moves in the direction of the arrow shown in t...

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Abstract

Formats of different defect management methods are applied to information recording media having the same physical characteristics according to presence / absence of a cartridge. A recording medium having a data recording area can be mounted on an information processing device. The data recording area includes a user area to which a logical address is assigned in accordance with the write unit. The information processing device includes: a judgment unit for judging whether a first recording medium contained in a cartridge or a second recording medium not contained in a cartridge is mounted according to the physical characteristic of the recording medium mounted; a processor for instructing to form the data recording area as a user area and a spare area when the second recording medium is mounted according to the judgment result and instructing to form the entire data recording area as a user area when the first recording medium is mounted; and a recording area for forming a user area and / or a spare area in the data recording area of the recoding medium mounted according to the instruction. The spare area is used as an alternative when a defect exists in the recording unit of the user area.

Description

technical field [0001] The invention relates to a rewritable disk with a sector structure. In addition, the present invention also relates to an apparatus and method for writing and / or reading data to such a disk, more specifically, an apparatus and method for writing data to a rewritable optical disk. Background technique [0002] An optical disc is well known as a typical example of a disc (disc) having a sector structure. In recent years, with the increase in density and capacity of optical discs, ensuring reliability has become particularly important. In order to ensure reliability, there are discs that are stored in a case without the user directly touching the disc. However, since the use of a cartridge increases the cost, disks that do not use cartridges are also used from the viewpoint of being able to sell the disk at low cost. [0003] The DVD-RAM standard is known as a disc standard that can be used equally regardless of whether the disc is contained in a case ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/12G11B20/10G11B7/004G11B19/12G11B20/18
CPCG11B20/18G11B19/12G11B20/12G11B20/10
Inventor 佐佐木真司
Owner PANASONIC CORP