KR100694432B1 - Method for recording data in a optical disk apparatus - Google Patents

Abstract

A data recording method of an optical disk device is provided to be capable of recording title information and recording information in particular areas of an optical disk, and of reproducing the recorded information to rewrite the information if an error is generated, therefore the recording information and the title information are exactly recorded on the disk. If a recording request is received while an optical disk is loaded, external input data is set to a recording title, and is recorded on the disk(S200-S204). Recording information and information on the recording title are recorded in portions of particular areas of the disk(206). The recording information and the information on the recording title are reproduced to check whether an error is generated(S208,S210). If so, the recording information and the information on the recording title are recorded again in other parts of the particular areas of the disk(S212-S216).

Description

How to record data from an optical disk device {METHOD FOR RECORDING DATA IN A OPTICAL DISK APPARATUS}

1 is a block diagram schematically showing an optical disk apparatus for explaining a data recording method according to the present invention;

2 is a flowchart illustrating a recording process of an optical disk device according to an exemplary embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

100: optical disk 102: optical pickup

104: VDR system 106: encoder

108: VDP system 110: error detection unit

112: micom 114: counter

The present invention relates to an optical disk device, and more particularly to a recording method in the optical disk device.

In general, optical discs capable of recording and playing back high-definition video data and high-quality audio data for a long time, such as rewritable DVDs, have been developed and commercialized. The rewritable DVDs include DVD-RW and DVD + RW. , DVD-RAM, and the like.

In addition, DVD-R, DVD + R, and the like, which can be recorded once, include DVD-R, DVD + R, and the like. An optical disc recorder, for example, a DVD recorder, which can read, reproduce, or record data recorded on the rewritable DVD and the once recordable DVD. Has been developed, released and commercialized.

On the other hand, in an optical disc recorder such as a DVD recorder, when an unformatted optical disc is inserted and seated, the video disc and the video data desired by the user are automatically formatted after the optical disc is set to the video mode or the VR mode. Will be recorded as

At the end of the recording, the optical disc recorder generates navigation information for the recording title and additionally records it in a specific area of the optical disc, for example, a lead-in area. When the user requests a playback operation, the lead-in The navigation information recorded in the area is searched and referred to to perform a series of playback operations for reading and playing back a recorded title.

However, if the recording is terminated without the navigation information for the recording title being recorded in a specific area on the optical disc due to the abnormality of the optical disc, the optical disc player does not have any initial information and a black screen when the optical disc is reproduced. There is a problem that a situation occurs, such as entering the screen playback.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem of the prior art. After recording external input data on an optical disc, recording information and title information are recorded in a specific area of the optical disc, and the recorded record information and title information are reproduced. The present invention provides a data recording method of an optical disk apparatus capable of accurately recording recording information and title information on an optical disk by determining whether an error is detected and rewriting the data when an error occurs.

In order to achieve the above object, the present invention provides a method for recording external input data in an optical disk device on an optical disk, comprising: a) recording the external input data when a recording request occurs while the optical disk is loaded; Recording on the optical disc as a title; b) recording the recording title information and recording information on a portion of a specific area of the optical disc after recording the recording title; c) recording of the optical disc. Reproducing information and recording information about the recorded title recorded in a part to check whether an error has occurred; d) when the error occurs, the information about the recorded title in another part of a specific area of the optical disc; Recording the record information again, and then proceeding to step c).

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing an optical disk apparatus for explaining a data recording method according to the present invention.

Referring to FIG. 1, an optical disk apparatus capable of recording and storing external data on a DVD-RW or a DVD-R or the like may be used to record or reproduce external input data on the optical disk 100 as illustrated in FIG. 1. An optical pickup 102, a VDR system 104, an encoder 106, a VDP (Video Disk Player) system 108, an error detector 110, a microcomputer 112, and a counter 114.

The encoder 106 encodes and modulates the external input data into a signal suitable for recording and provides the VDR system 104 to the VDR system 104. The VDR system 104 DVD-RW the external input data encoded and modulated by the encoder 106. Alternatively, after performing a series of data recording operations for recording and storing on the optical disc 100 such as a DVD-R or the like, the optical disc is managed as a new title in the recording section from the recording start position to the recording end position at the end of recording. Record information, that is, file system information and video title information, is recorded in a part of a specific area of the disc 100, for example, a lead-in area.

The microcomputer 112 is responsible for the overall control of the optical disk device. In particular, the microcomputer 112 controls the VDR system 104 to record external input data input through the encoder 106 to the optical disk 100 and then to the optical disk 100. Update recording information recorded in a specific area, for example, a lead-in area, that is, update file system information, record video title information, and control the VDP system 108 to control a specific area of the optical disc 100. Play it back.

The VDP system 108 reads the data recorded in a specific area of the optical disc 100 under the control of the microcomputer 112 and provides it to the error detection unit 110. Accordingly, the error detector 110 provides an error signal to the microcomputer 112 when a PO (Parity Out) is detected in the data provided by the VDP system 108, and controls to end recording when the PO is not detected. The signal is provided to the microcomputer 112.

On the other hand, the microcomputer 112 increases the counter value of the counter 114 whenever an error signal is received from the error detector 110, and then controls the VDR system 104 when the counter value is less than or equal to a preset value. The recording information and the video title information are re-recorded in a specific area of the 100, i.e., another part of the lead-in area, and the VDP system 108 is controlled to reproduce the recorded information and the video title information, and then the error detection unit ( In step 110, it is determined whether an error signal is received.

In addition, when a control signal is applied from the error detection unit 110, the microcomputer 112 determines that the recording information and the video title information are properly recorded, and terminates the recording of the external input data, or the counter value of the counter 114 is preset. When the set value is exceeded, recording is terminated, and a predetermined error message is displayed on the display device, not shown.

The process of recording the external input data by the optical disk device having the above configuration will be described with reference to FIG. 2.

2 is a flowchart illustrating a recording process of an optical disk device according to an exemplary embodiment of the present invention.

Referring to FIG. 2, after the optical disk apparatus is driven (S200), the microcomputer 112 of the optical disk apparatus determines whether a recording request signal for recording external input data is input from the user (S202).

As a result of the determination in step S202, when the recording request signal is input, the microcomputer 112 drives the VDR system 104 to record the external input data encoded by the encoder 106 as the recording title on the optical disc 100. (S204).

After the external input data is recorded through the above process, the microcomputer 112 uses the VDR system 104 to record file system information and title information which are file system information in a specific area of the optical disc 100, that is, a part of the lead-in area. Record (S206).

When recording of the recording information and title information is completed, the microcomputer 112 controls the VDP system 108 to reproduce some areas of the lead-in area in the optical disc 100, so that the VDP system 108 read-out The data is read from the partial area of the in area and provided to the error detection unit 110 (S208).

The error detector 110 determines whether PO data is detected in the data provided from the VDP system 108 (S210).

As a result of the determination in step S210, when PO data is detected, the error detector 110 provides a predetermined error signal to the microcomputer 112, and the microcomputer 112 sets a counter value (set in the counter 114 in response to the error signal). After n) is increased to "1", it is checked whether the counter value n is less than or equal to a predetermined value, for example, "3" (S212, S214).

As a result of the check in step S214, when the counter value n is " 3 " or less, the microcomputer 112 proceeds to step S206 to record the record information and the title information which are the file system information in another part of the lead-in area.

If the counter value n exceeds "3" as a result of the check in step S214, the microcomputer 112 displays a predetermined error message on the display device (not shown) (S216), and proceeds to step S218 to record. Terminate

On the other hand, when the PO data is not detected as a result of the determination in step S210, the microcomputer 112 determines that the recording of the external input data is normally completed, and proceeds to step S218 to end the recording.

According to a preferred embodiment of the present invention, recording information and title information are recorded in a part of the lead-in area and then recorded in another part of the lead-in area when PO data is detected during reproduction of the part of the lead-in area. For example, in the case where the optical disc 100 is a rewritable disc, that is, a DVD-RW, the recording information and the title information recorded in a part of the lead-in area are deleted and then the record information and the title in the part of the lead-in area. Information can be recorded.

According to the present invention, after recording external input data on the optical disc 100, record information and title information are recorded in a specific area of the optical disc 100, and the recorded record information and title information are reproduced to determine whether there is an error. By rewriting when an error occurs, recording information and title information can be accurately recorded on the optical disc 100.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, in the present invention, after recording external input data on an optical disk, recording information and title information are recorded in a specific area of the optical disk, and the recorded recording information and title information are reproduced to determine whether an error occurs. By rewriting, it is possible to accurately record the record information and the title information on the optical disc, thereby solving the problem that the data recorded on the optical disc cannot be reproduced due to the error of the record information and the title information.

Claims (5)

A method of recording external input data in an optical disk device onto an optical disk, a) recording the external input data as the recording title to the optical disc when a recording request occurs while the optical disc is loaded; b) recording the recorded title and information about the recorded title in a portion of a specific area of the optical disc after recording the recorded title; c) reproducing information and recording information on the recording title recorded on a portion of the optical disc to check whether an error occurs; d) if the error occurs, re-recording the information about the recording title and the recording information in another part of a specific area of the optical disc, and then proceeding to step c). Data recording method of the optical disk device comprising a. The method of claim 1, The method, Increasing a counter value according to the occurrence of the error; Terminating recording and displaying an error message when the counter value exceeds a preset value. The data recording method of the optical disk device further comprising. The method of claim 1, If the optical disc is a rewritable disc, step d) may include: And deleting the title information and the recording information recorded in a portion of the optical disc, and rewriting the information and the recording information for the recorded title in the portion. The method according to any one of claims 1 to 3, The specific area of the optical disc is a lead-in area of the optical disc. The method of claim 1, Detecting the error, And detecting an error by determining whether PO data is detected from the information on the reproduced recording title and the recording information.

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