KR20110021382A - Recording medium, data recording/reproducing method, and data recording/reproducing apparatus - Google Patents

Abstract

PURPOSE: A recording medium, a data recording/reproducing method, and a data recording/reproducing apparatus are provided to efficiently search not only the size information of a temporal disk management region within a spare region but also the size information of a spare region of a recording medium. CONSTITUTION: User data are recorded at a data region, and an inner zone(210) is placed at an internal circumference side. An outer zone(230) is placed at an external circumference side, and the data region includes spare regions(221,223) and user data region(222). The user data are recorded in the order of the use direction of the spare region. The use direction of the spare region is identical to the data recording direction on a recording medium.

Description

RECORDING MEDIUM, DATA RECORDING / REPRODUCING METHOD, AND DATA RECORDING / REPRODUCING APPARATUS}

The present invention relates to a recording medium, a data recording / reproducing method, and a data recording / reproducing apparatus, and more particularly, to a method and apparatus for using a spare area of a recording medium during data recording / reproducing, and to using such a method and apparatus. A recording medium capable of recording / reproducing.

Recent rapid development of technology has led to the emergence of high-capacity recording media. Such recording media include Blu-ray Disc, Near Field Recording Medium, and the like. In addition, in order to further increase the capacity of the recording medium, a multilayer recording medium having a plurality of recording layers has also emerged.

In the case of using such a high capacity / multi-layer recording medium, a spare area in which additional information or defect replacement information, etc. of the recording medium is recorded is dispersed in various recording layers, and the size thereof becomes large. Therefore, there is a problem of how to efficiently use the spare area of such a recording medium.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to efficiently use a spare area of a recording medium when recording / reproducing the recording medium.

Accordingly, the present invention provides a data area in which user data is recorded; An inner region located on an inner circumferential side of the data region; And an outer area positioned on an outer circumferential side of the data area, wherein the data area includes a spare area and a user data area, wherein the spare area records the user data in an order of use direction of the spare area, The use direction of the spare area is provided on the recording medium in the same recording medium as the direction in which the data is recorded.

The spare area may include an inner spare area located on an inner circumferential side of the user data area and an outer spare area located on an outer circumferential side of the user data area, and at least one of the inner area and the outer area may be provided. And a management area including management information including size information of the spare area, and the size information of the spare area includes size information of the inner spare area included in the first layer and the outer spare. An embodiment includes size information of an area and size information of the inner spare area included in a layer except the first layer.

In addition, the present invention includes an embodiment in which the spare area includes the management area, and the management information includes size information of the management area included in the spare area.

The present invention also provides information on the size of the management area included in the spare area, the size information of the management area included in the inner spare area of the first layer, and the size information of the management area included in the outer spare area. And size information of the management area included in the inner spare area of the layer except the first layer.

In addition, the present invention includes the step of recording the data in the spare area of the recording medium in the spare area in the order of the direction of use of the spare area, the use direction of the spare area is the recording medium. A data recording method is provided which is the same as the direction in which the data is recorded.

In addition, the present invention includes an embodiment in which the spare area cannot be enlarged or reduced in size.

In addition, the present invention includes the step of reading the data recorded in the spare area of the recording medium in the spare area in the order of the use direction of the spare area, the use direction of the spare area A data reproduction method is provided which is the same as the direction in which the data is recorded on the recording medium.

In addition, the present invention includes an embodiment in which the spare area cannot be enlarged or reduced in size.

The present invention also provides a data recording apparatus for recording data in a spare area of a recording medium, comprising: a pickup for recording the data on the recording medium; And a control unit for controlling the pickup to record the data in the spare area in the order of the use direction of the spare area, wherein the use direction of the spare area is the same as the direction of recording the data on the recording medium. Provide a device.

The present invention also includes an embodiment in which the data recording direction is the movement direction of the pickup.

In addition, the present invention includes an embodiment in which the spare area cannot be enlarged or reduced in size.

A data reproducing apparatus for reproducing data recorded in a spare area of a recording medium, the present invention comprising: a pickup for reading the data recorded on the recording medium; And a control unit controlling the pickup to read the data recorded in the order of the use direction of the spare area in the spare area, wherein the use direction of the spare area is the same as the direction of recording the data on the recording medium. Provided is a data reproducing apparatus.

The present invention also includes an embodiment in which the data recording direction is the movement direction of the pickup.

In addition, the present invention includes an embodiment in which the spare area cannot be enlarged or reduced in size.

The present invention is not limited to the above-described embodiments, and can be modified by those skilled in the art as can be seen from the appended claims, and such variations are within the scope of the present invention. To reveal.

According to the recording medium, the data recording / reproducing method and the data recording / reproducing apparatus according to the present invention, the spare area of the recording medium can be used efficiently. Further, the size information of the spare area of the recording medium and the size information of the temporary disk management area included in the spare area can be searched efficiently.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the following description, the same components are given the same names and the same reference numerals for the convenience of description.

The terminology used in the present invention is a general term that is currently widely used as possible, but in certain cases, the term is arbitrarily selected by the applicant, and in this case, since the meaning is described in detail in the description of the present invention, The present invention should be understood as meanings of terms rather than names.

In the present invention, the recording medium means any medium on which data is recorded or can be recorded. For example, a recording medium is meant to encompass all media regardless of a recording method such as a disk or a magnetic tape. Hereinafter, the present invention will be described by using a disc (Disc), especially a Blu-ray Disc (BD), as a recording medium as an example for convenience of description, but the technical idea of the present invention is equally applicable to other recording media. Will be self explanatory.

In the present invention, one of the Blu-ray Discs (BDs) will be described based on the recording medium of the write once type (BD-R) or the rewritable type (BD-RE). Applicability to the media is also obvious.

In addition, the recording medium of the present invention may be configured in a predetermined unit. In one example, the recording medium includes a unit called a cluster, and the cluster includes a data frame that is a lower unit. One cluster may be composed of 32 data frames. However, the name and number of each unit may vary depending on the type of recording medium.

1 shows the structure of a recording medium 10 according to an embodiment of the present invention.

FIG. 1 illustrates a quadruple layer recording medium 10 composed of four layers L0, L1, L2, and L3. However, the present invention is not limited to this and is applicable to all recording media 10 composed of a single layer and two or more layers. Since each layer may be configured in the same structure, the present invention will be described based on the first layer (L0).

The recording medium 10 includes an inner zone 210, an outer zone 230, and a data zone 220.

The inner region 210 is located on the inner circumference side of the recording medium 10, and the outer region 230 is located on the outer circumference side of the recording medium 10 to store various kinds of information for controlling the recording medium 10. do. In one example, the inner region 210 and the outer region 230 include a temporary disc management area (TDMA) or a management area (DMA). In the temporary management area TDMA or the management area DMA, the structural information of the recording medium 10 and the defect address information are recorded.

The data area 220 stores data that a user wants to record. The portion surrounded by the inner region 210 and the outer region 230 on the recording medium 10 becomes a region where data is actually recorded. The data area 220 may include an inner spare area (ISA) 221, an outer spare area (OSA) 223, and a user data area 222.

In the spare areas 221 and 223, additional information and defect replacement information of the recording medium 10 are recorded. In addition, the spare areas 221 and 223 may include the temporary management area (TDMA) described above.

The defect replacement information is data of a region where a defect occurs when a defect occurs in the user data area 222, and means data that is transferred and recorded in the spare areas 221 and 223. Therefore, when a defect occurs in the user data area 222, the data recording apparatus records defect replacement information, which is data of the defective area, in the spare areas 221 and 223. Then, the data reproducing apparatus reproduces the defect replacement information recorded in the spare areas 221 and 223 by using the defect address information including the address information of the spare areas 221 and 223 in which the defect replacement information is recorded. The defect address information of the present invention is recorded in the above-mentioned temporary management area (TDMA) or management area (DMA).

In the rewritable recording medium 10, the sizes of the spare areas 221 and 223 may be enlarged or reduced. When the sizes of the spare areas 221 and 223 are enlarged, a part of the user data area 222 adjacent to the spare areas 221 and 223 is replaced with the spare areas 221 and 223. When the sizes of the spare areas 221 and 223 are reduced, the user is reduced. A portion of the spare areas 221 and 223 adjacent to the data area 222 is replaced with the user data area 222.

Although FIG. 1 illustrates two spare areas (inner spare area and outer spare area), arrangement and number are merely exemplary and various embodiments may be made without departing from the spirit of the present invention.

2A and 2B, a method of recording data in the spare areas 221 and 223 according to the use direction of the spare areas 221 and 223 and the data recording direction of the recording medium 10 will be described.

Although the drawing shows recording of defect replacement information in the spare areas 221 and 223, the same applies to the case of recording additional information of the recording medium 10, which is not defect replacement information.

In addition, although the drawing shows that the defect replacement information is recorded in the spare areas 221 and 223, the same applies to the case where the defect replacement information is reproduced in the spare areas 221 and 223.

In the figure, the data (1, 2, 3, 4) recorded in the user data area 222 are defect data, which is data recorded in the area where a defect has occurred, and the data (1, 2, 3) recorded in the spare areas (221, 223). 3 and 4 are defect replacement information. The data of each corresponding number consists of the same data.

The use direction of the spare areas 221 and 223 may be configured to be the same as the data recording direction of the recording medium 10, and may be configured to be opposite to the data recording direction of the recording medium 10.

The use direction of the spare areas 221 and 223 means the direction of the order of data recorded in the spare areas 221 and 223. That is, if the use direction of the spare areas 221 and 223 is in the circumferential direction from the inner circumference of the recording medium 10, the data recorded in the spare areas 221 and 223 are recorded in the order of the circumferential direction from the inner circumference of the recording medium 10. As shown in the figure, data 1,2,3,4 are sequentially recorded in the direction of use of the spare areas 221, 223. FIG.

The data recording direction of the recording medium 10 is a direction in which data is recorded on the recording medium 10, and means a direction in which a recording unit, such as pickup, described later, records data on the recording medium 10.

Depending on the relationship between the use direction of the spare areas 221 and 223 and the data recording / reproducing direction, the method for the data recording / reproducing apparatus to record / reproduce data in the spare areas 221 and 223 varies. That is, depending on the use direction of the spare areas 221 and 223 and the case where the data recording / reproducing directions are the same or vice versa, the method of recording / reproducing the data of the spare areas 221 and 223 differs.

2A illustrates a case where the use direction of the spare areas 221 and 223 and the data recording direction are the same.

When the use direction of the spare areas 221 and 223 and the data recording direction are the same, the order direction and the recording direction of the data recorded in the spare areas 221 and 223 are the same. Therefore, the data recording apparatus can continuously record the defect replacement information in the recording direction in order.

2B illustrates a case in which the use direction of the spare areas 221 and 223 and the data recording direction are opposite in accordance with the embodiment of the present invention.

When the use direction of the spare areas 221 and 223 and the data recording direction are reversed, the order direction of the data recorded in the spare areas 221 and 223 and the recording direction are reversed. Thus, the data recording apparatus cannot record data in the spare areas 221 and 223 continuously. As shown in the figure, the data recording apparatus must record the data in order so as to match the use direction of the spare areas 221 and 223.

Therefore, when the use direction of the spare areas 221 and 223 and the data recording direction are opposite, frequent movement of the recording unit for recording data on the recording medium 10 is required. Therefore, due to the frequent movement of the recording unit, the time for the data recording apparatus to record data in the spare areas 221 and 223 is increased.

Hereinafter, based on the relationship between the use direction of the spare areas 221 and 223 and the data recording direction, the use direction of the spare areas 221 and 223 in the recording medium 10 of the present invention will be described.

3 illustrates the use direction of the spare areas 221 and 223 according to the first embodiment of the present invention.

Although FIG. 3 illustrates a quadruple layer recording medium 10 composed of four layers, it is also applicable to the recording medium 10 composed of three or more layers.

In the first embodiment of the present invention, the spare areas 221 and 223 are used in the inner spare area 221 in the circumferential direction from the inner circumference of the recording medium 10, and the outer spare area 223 is used as the recording medium 10. It is to be used in the direction from the outer circumference to the inner circumference. That is, the use direction of the spare areas 221 and 223 is configured to face the user data area 222.

In this regard, in the multi-layer recording medium 10, the data recording direction is repeated in the L0 layer from the inner circumference to the circumferential direction, the L1 layer from the outer circumference to the circumferential direction, and the L2 layer is repeatedly from the inner circumference to the circumferential direction. It is composed. That is, the even layers L0, L2 ... are configured in the circumferential direction from the inner circumference, and the odd layer L1, L3 ... are constructed in the outer circumferential direction.

Accordingly, in the first embodiment of the present invention, in the inner spare area ISA0 of the L0 layer, the outer spare area OSA1 of the L1 layer, the inner spare area ISA2 of the L2 layer, and the outer spare area OSA3 of the L3 layer, The use direction of the spare areas 221 and 223 and the data recording direction are configured in the same way. In the other spare areas OSA0, ISA1, OSA2, ISA3, the use direction of the spare areas 221, 223 and the data recording direction are configured oppositely.

When the use direction of the spare areas 221 and 223 is configured according to the first embodiment of the present invention, the data recording / reproducing apparatus can efficiently enlarge or reduce the spare areas 221 and 223. That is, since the use direction of the spare areas 221 and 223 faces the user data area, there is no change in the starting point of use of the spare areas 221 and 223 due to the enlargement or reduction of the spare areas 221 and 223. Therefore, no additional work is required due to the enlargement or reduction of the spare area, and the data recording / reproducing apparatus can efficiently enlarge or reduce the spare areas 221 and 223.

4 and 5 illustrate directions of use of the spare regions 221 and 223 according to the second embodiment of the present invention.

FIG. 4 is a diagram illustrating a direction in which spare areas 221 and 223 are used in a quadruple layer recording medium 10 having four layers, and FIG. 5 is a spare in a triple layer recording medium 10 having three layers. The direction of use of the regions 221 and 223 is shown.

In the second embodiment of the present invention, the use direction of the spare areas 221 and 223 is configured to be the same as the data recording direction of the recording medium 10. That is, the direction of use of the spare regions 221 and 223 according to the second embodiment of the present invention is in the circumferential direction from the inner circumference to the even layers L0, L2 ..., and the outer circumference in the odd layers L1, L3 ... In the inner circumferential direction.

When the use direction of the spare areas 221 and 223 is configured according to the second embodiment of the present invention, the data recording / reproducing apparatus can efficiently record / reproduce the data in the spare areas 221 and 223.

All spare areas 221 and 223 of the recording medium 10 have the same use direction of the spare areas 221 and 223 and a data recording direction of the recording medium 10. Therefore, as described above in FIG. 2B, the data recording / reproducing apparatus can continuously record / reproduce data in the spare areas 221 and 223. This is because the recording unit or the reproduction unit moves continuously in the data recording / reproducing apparatus.

In addition, as the number of layers of the recording medium 10 increases, the user data area 222 where defects may occur increases, and the amount of data such as defect replacement information recorded in the spare areas 221 and 223 also increases. According to the second embodiment of the present invention, the data recording / reproducing apparatus can efficiently record / reproduce a large amount of defect replacement information generated by increasing the number of layers of the recording medium 10 in the spare areas 221 and 223.

However, when the use direction of the spare areas 221 and 223 is configured according to the second embodiment of the present invention, the data recording / reproducing apparatus may limit the enlargement or reduction of the spare areas 221 and 223.

When a spare area (for example, OSA0, ISA1, etc.) in which the use direction of the spare areas 221 and 223 does not face the data area 222 is enlarged or reduced, the use start points of the spare areas 221 and 223 are changed. Therefore, the data recording / reproducing apparatus requires the entire movement of the data recorded in the corresponding spare areas 221 and 223. Therefore, due to the overall movement of the data recorded in the spare areas 221 and 223, much time is required for data recording / reproducing. Therefore, when the use direction of the spare areas 221 and 223 is configured according to the second embodiment of the present invention, the data recording / reproducing apparatus can limit the enlargement or reduction of the spare areas 221 and 223.

When the data recording / reproducing apparatus limits the enlargement or reduction of the spare areas 221 and 223, the sizes of the spare areas 221 and 223 are fixed. That is, the sizes of the spare areas 221 and 223 determined when the data recording / reproducing apparatus is formatting the recording medium 10 do not change.

As described above, the general management information and the defect management information of the recording medium 10 are recorded in the temporary management area TDMA or the management area DMA. And. General management information of the recording medium 10 includes size information of the spare areas 221.223 of the recording medium 10.

In addition, the general management information of the recording medium 10 is composed of a temporary disc definition structure (TDDS) or a disc definition structure (DDS). Hereinafter, the temporary disc definition structure TDDS or the disc definition structure DDS including the size information of the spare areas 221 and 223 in the recording medium 10 of the present invention will be described.

For reference, in the case of the recording medium 10 that can be written once, in the temporary management area (TDMA), not only the defect management information generated during the use of the recording medium 10 but also the general management indicating the recording state in the recording medium 10. Information is mixed and recorded. Thereafter, when the recording medium 10 is closed, the corresponding recording medium 10 is no longer able to record data. Thus, the latest management information in the temporary management area TDMA is transferred to the management area DMA. Will be recorded. Therefore, until the recording medium 10 is closed, management information is recorded in the temporary management area (TDMA), and when the recording medium 10 is closed, the latest management information in the temporary management area (TDMA) is transferred into the management area (DMA). Is recorded before. Then, the data reproducing apparatus reproduces the recording medium 10 using the final management information in the management area (DMA).

6 illustrates a temporary disc definition structure (TDDS) or a disc definition structure (DDS) according to an embodiment of the present invention.

The figure will be described with reference to the quadruple layer recording medium 10 composed of four layers, but the same applies to the other multilayer recording medium 10.

As described above, the temporary disc definition structure TDDS or the disc definition structure DDS includes size information of the spare areas 221 and 223 included in the recording medium 10.

In the present invention, the size information of the spare areas 221 and 223 may include the size information of the inner spare area ISA0 of the first layer L0, the size information of the outer spare area OSA, and the remaining layers except the first layer L0. It consists of size information of the inner spare areas ISA1 to 3.

Therefore, the temporary disk definition structure TDDS or the disk definition structure DDS of the present invention includes the size of the inner spare area ISA0 of the first layer L0, the size of the outer spare area OSA, and the first layer L0. The information on the size of the inner spare areas ISA1 to 3 of the remaining layers except for ()) is recorded.

First, in the temporary disk definition structure TDDS or the disk definition structure DDS of the present invention, the inner spare area ISA0 of the first layer L0 is, for example, in the 40th byte of the 31st frame. ) Size information is recorded. The size information of the inner spare area ISA0 of the first layer L0 may be recorded with a size of 4 bytes.

In the temporary disk definition structure TDDS or the disk definition structure DDS of the present invention, the size information of the outer spare area OSA is recorded, for example, in the 44th byte of the 31st frame. The size information of the outer spare area OSA may be recorded with a size of 4 bytes.

In addition, in the temporary disk definition structure (TDDS) or the disk definition structure (DDS) of the present invention, the inner spare areas ISA1 to 3 of the remaining layers except for the first layer L0, for example, are stored in the 48th byte of the 31st frame. ) Size information is recorded. The size information of the inner spare areas ISA1 to 3 of the remaining layers except for the first layer L0 may be recorded in a size of 4 bytes.

Therefore, the data reproducing apparatus can read the size information of the spare areas 221 and 223 from the temporary disc definition structure TDDS or the disc definition structure DDS recorded in the inner area 210 or the outer area 230. In addition, since the size information of the inner spare area ISA of the first layer L0 is separately configured from the size information of the spare areas 221 and 223, the data recording / reproducing apparatus has the size of the first spare area of the recording medium 10. You can read information quickly.

As described above, in the recording medium 10 which can be written once, the temporary management area TDMA is included in the inner area 210. In the recordable recording medium 10, the temporary management area TDMA may be included in the spare areas 221 and 223.

The size information of the temporary management area TDMA included in the spare areas 221 and 223 is recorded in the temporary disk definition structure TDDS. Hereinafter, a temporary disk definition structure (TDDS) including size information of the temporary management area (TDMA) included in the spare areas 221 and 223 will be described.

FIG. 7 illustrates a temporary disk definition structure (TDDS) of a write-once recording medium 10 according to an embodiment of the present invention.

FIG. 7 illustrates a case in which the size of the temporary management area (TDMA) included in the spare areas 221 and 223 is the same as the size of the spare area 221 and 223. However, the temporary management area (TDMA) is the same as that of the spare areas 221 and 223. The same applies to the case of partial configuration.

In the present invention, the size information of the temporary management area (TDMA) included in the spare areas 221 and 223 is the same as the size information of the spare areas 221 and 223 described above with reference to FIG. 6, and the inner spare area ISA0 of the first layer L0. ), The size of the temporary management area (TDMA) included in the), the size of the temporary management area (TDMA) included in the outer spare area (OSA), and the inner spare area (ISA1 to 3) of the remaining layers except the first layer (L0). Information on the size of the temporary management area (TDMA) included in the.

Therefore, the temporary disk definition structure TDDS of the present invention includes the size information of the temporary management area TDMA included in the inner spare area ISA0 of the first layer L0, and the temporary management included in the outer spare area OSA. The size information of the area TDMA and the size information of the temporary management area TDMA included in the inner spare areas ISA1 to 3 of the remaining layers except for the first layer L0 are recorded.

First, in the temporary disk definition structure TDDS of the present invention, the temporary management area included in the inner spare area ISA0 of the first layer L0, for example, in the 1040th byte of the 31st frame. Size information of (TDMA) is recorded. The size information of the temporary management area TDMA included in the inner spare area ISA0 of the first layer L0 may be recorded with a size of 4 bytes.

In the temporary disk definition structure TDDS of the present invention, the size information of the temporary management area TDMA included in the outer spare area OSA is recorded, for example, in the 1044th byte of the 31st frame. The size information of the temporary management area TDMA included in the outer spare area OSA may be recorded in a size of 4 bytes.

In the temporary disk definition structure TDDS of the present invention, the temporary management area included in the inner spare areas ISA1 to 3 of the remaining layers except for the first layer L0, for example, in the 1048th byte of the 31st frame. Size information of (TDMA) is recorded. The size information of the temporary management area TDMA included in the inner spare areas ISA1 to 3 of the remaining layers except for the first layer L0 may be recorded in a size of 4 bytes.

8 is a block diagram of a data recording / reproducing apparatus according to an embodiment of the present invention.

Looking at the overall configuration of the data recording / reproducing apparatus of the present invention in detail, first, the pickup 70 is equipped with a laser diode therein to record data on the surface of the recording medium 10, or the recording medium 10 Read the signal reflected from).

 The servo 90 controls the tracking and focusing operation of the pickup 70 and the operation of the spindle motor 110.

 The R / F unit 80 generates a focus error signal and a tracking error signal, which are signals that detect out-of-focus and track-out of the laser beam by using the signal output from the pickup 70. .

The spindle motor 110 rotates a disc mounted in the data recording / reproducing apparatus.

The motor driver 100 drives the operation of the pickup 70 and the spindle motor 110 under the control of the servo 90.

The signal processor 40 restores the RF signal received from the R / F unit 80 to a desired reproduction signal value, or modulates and outputs a data signal to be recorded in a format recordable on the recording medium 10. .

The bit encoder 50 converts the write signal output from the signal processor 40 into a bit stream, and the pickup driver 60 transmits the bit stream generated by the bit encoder 50 to the recording medium 10. Convert to an optical signal to be stored.

The memory 140 temporarily stores information related to the recording medium 10 such as defect information of the recording medium 10 or performs a buffer function for temporarily storing data to be recorded or reproduced on the recording medium 10. do.

The microcomputer 120 is configured to control the signal processor 40, the servo 90, and the memory 140, and controls the drive including the components to perform data recording or reproducing operations.

When data is recorded or reproduced in the spare areas 221 and 223 of the recording medium 10, the use direction of the spare areas 221 and 223 may be set in one of two cases.

First, the use direction of the spare areas 221 and 223 may be configured to face the user data area 222. Secondly, the use direction of the spare areas 221 and 223 can be configured to be the same as the data recording direction of the recording medium 10.

In addition, the microcomputer 120 generates a temporary disc definition structure (TDDS) or a disc definition structure (DDS) including the size information of the spare areas 221 and 223 of the recording medium 10. The microcomputer 120 controls the pickup 70 to record the created temporary disk definition structure TDDS or disk definition structure DDS in the temporary disk management area TDMA or disk management area DMA.

In the temporary disk definition structure (TDDS) or the disk definition structure (DDS) of the present invention, the size of the inner spare area (ISA) of the first layer, the size of the outer spare area (OSA), the inner spare of the remaining layers except the first layer Information about the size of the area ISA is recorded.

In addition, the microcomputer 120 generates a temporary disk definition structure (TDDS) including size information of the temporary management area (TDMA) included in the spare areas 221 and 223 in the write-once recording medium 10. The microcomputer 120 controls the pickup 70 to record the created temporary disk definition structure TDDS in the temporary disk management area TDMA.

In the temporary disk definition structure (TDDS) of the present invention, the size information of the temporary management area (TDMA) included in the inner spare area (ISA) of the first layer and the temporary management area (TDMA) included in the outer spare area (OSA) are included. Size information and size information of a temporary management area (TDMA) included in the inner spare area (ISA) of the remaining layers except the first layer are recorded.

Although the microcomputer 120 is illustrated as one component, the present invention is not limited thereto. The functions of the microcomputer 120 may be linked to each other to perform the functions, and the microcomputer 120 may be implemented in an integrated form with the host 130. In addition, the microcomputer 120 includes the signal processor 40, the bit encoder 50, the pickup driver 60, the pickup 70, the servo 90, the motor driver 100, the spindle motor 110, and the microcomputer ( 120 may be additionally connected to a drive including the memory 140 to enable updating.

The host 130 is in charge of controlling all the components in the data recording / reproducing apparatus, and interfaces with a user to control recording or reproducing of the recording medium 10. Specifically, the host 130 transmits a command to the microcomputer 120 to cause the data recording / reproducing apparatus of the present invention to perform a specific function, and the microcomputer 120 interoperates with each other in the data recording / reproducing apparatus according to the command. To control the components configured to.

The microcomputer 120 and the host 130 may be provided separately and operate. The microcomputer 120 and the host 130 may operate as one control unit 150 by integrating the functions of the microcomputer 120 and the host 130.

The host 130 may be a main controller of a computer, a server, an audio device, or a video device. That is, the recording / reproducing apparatus of the present invention may be an optical drive provided to a personal computer (PC) or the like, or may be a player not mounted on a personal computer or the like.

Accordingly, the data recording / reproducing apparatus according to the present invention can be applied to both an optical drive and a player utilized as a single product mounted and operated inside a PC.

In addition, the AV encoder 20 converts an input signal into a signal of a specific format recordable on the recording medium 10 and transmits the data to the signal processor 40 in order to record data on the recording medium 10. For example, the AV encoder 20 may encode the input signal into an MPEG format signal. The signal processor 40 adds an error correction code (ECC) to the signal encoded by the AV encoder 20, converts the signal into a format recordable on the recording medium 10, and transmits the converted signal to the bit encoder 50.

In addition, the AV decoder 30 finally decodes the reproduction signal of the recording medium 10 received from the signal processing unit 40 and provides it to the user as output data such as a video and an audio signal.

The components of the data recording / reproducing apparatus according to the present invention described above may be implemented as software or hardware to perform respective functions, or may be implemented by interworking with the software and hardware.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings, and the present invention is also provided. Naturally, it belongs to the range of.

1 shows the structure of a recording medium according to an embodiment of the present invention.

2A shows a case where the use direction of the spare area and the data recording direction are the same according to the embodiment of the present invention.

2B illustrates a case in which the use direction of the spare area and the data recording direction are opposite in accordance with the embodiment of the present invention.

3 illustrates a direction in which the spare area according to the first embodiment of the present invention is used.

4 and 5 show the direction of use of the spare area according to the second embodiment of the present invention.

6 illustrates a temporary disc definition structure (TDDS) or a disc definition structure (DDS) according to an embodiment of the present invention.

Fig. 7 shows a temporary disc definition structure (TDDS) of a write-once recording medium according to an embodiment of the present invention.

8 is a block diagram of a data recording / reproducing apparatus according to an embodiment of the present invention.

Claims (14)

A data area in which user data is recorded; An inner region located on an inner circumferential side of the data region; And An outer region located on an outer circumferential side of the data region, The data area includes a spare area and a user data area, In the spare area, the user data is recorded in the order of the use direction of the spare area. And a direction in which the spare area is used is the same as a direction in which the data is recorded on the recording medium. The method of claim 1, The spare area includes an inner spare area located on an inner circumferential side of the user data area and an outer spare area located on an outer circumferential side of the user data area, At least one of the inner region and the outer region includes a management region, In the management area, management information including size information of the spare area is recorded, The size information of the spare area is Size information of the inner spare area included in the first layer, Size information of the outer spare area, and And a size information of the inner spare area included in the layer except the first layer. The method of claim 2, The spare area includes the management area, And the management information includes size information of the management area included in the spare area. The method of claim 3, wherein Size information of the management area included in the spare area, Size information of the management area included in the inner spare area of the first layer, Size information of the management area included in the outer spare area, and And size information of the management area included in the inner spare area of the layer except the first layer. In recording data in the spare area of the recording medium, Recording the data in the spare area in the order of use direction of the spare area; And a direction in which the spare area is used is the same as a direction in which the data is recorded on the recording medium. The method of claim 5, The spare area is, A method of recording data that cannot be enlarged or reduced in size. In reproducing the data recorded in the spare area of the recording medium, Reading the data recorded in the order of the use direction of the spare area in the spare area, And a direction in which the spare area is used is the same as a direction in which the data is recorded on the recording medium. The method of claim 7, wherein The spare area is, How to play data that cannot be enlarged or reduced in size. A data recording apparatus for recording data in a spare area of a recording medium, A pickup for recording the data on the recording medium; And A control unit for controlling the pickup to record the data in the spare area in the order of the use direction of the spare area; And a direction in which the spare area is used is the same as the direction in which the data is recorded on the recording medium. The method of claim 9, The data recording direction is A data recording apparatus, which is a moving direction of the pickup. The method of claim 9, The spare area is, Data recording device that cannot be enlarged or reduced in size. A data reproducing apparatus for reproducing data recorded in a spare area of a recording medium, A pickup that reads the data recorded on the recording medium; And A control unit for controlling the pickup to read the data recorded in the order of the use direction of the spare area in the spare area, And a direction in which the spare area is used is the same as a direction in which the data is recorded on the recording medium. 13. The method of claim 12, The data recording direction is A data reproducing apparatus which is a moving direction of the pickup. 13. The method of claim 12, The spare area is, Data playback device that cannot be enlarged or reduced in size.

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