KR100696845B1 - Method for detecting optical-disc tuning value of optical-disc recorder system - Google Patents

Abstract

An optical disk tuning value detecting method of an optical disk recording system is provided to enable the system to detect a tuning value corresponding to an MID(Manufacturer Identifier) code of a type of a mounted optical disk in order to conduct recording/reproducing processes by using the disk, thus a recording or reproducing error is reduced. A type of a mounted optical disk is discriminated(202-206). An MID code of the mounted disk is extracted, and MID codes for each type of prestored optical disks are extracted(208,210). It is checked whether an MID code which is the same as the MID code of the mounted disk exists(212). If not, the current mode is converted into an optical disk tuning mode(214). The mounted disk is tuned to detect and store an optical disk tuning value(216,218).

Description

METHOOD FOR DETECTING OPTICAL-DISC TUNING VALUE OF OPTICAL-DISC RECORDER SYSTEM}

1 is a block diagram of an optical disc recording system suitable for detecting a tuning value of an optical disc mounted according to the present invention;

2 is a flowchart illustrating a process of detecting and reproducing an optical disk tuning value mounted in an optical disk recording system according to the present invention.

<Description of Symbols for Main Parts of Drawings>

102: key input block 104: control block

106: tuning block 108: decoding block

110: MPEG codec block 110a: MID code extraction unit

110b: optical disk tuning unit 112: signal processing block

114: hard disk drive 116: optical disk loading block

118: program storage block

The present invention relates to an optical disc recording system, and more particularly, to an optical disc tuning method of an optical disc recording system suitable for determining a type of an optical disc mounted in an optical disc recording system and detecting a tuning value according to the MID code of the corresponding optical disc.

As is well known, optical discs, such as Digital Versatile Disc (DVD), can be used for playback only, Digital Versatile Disc-Read Only Memory (DVD-ROM), Digital Versatile Disc-Recordable (DVD-R), rewritable It has various kinds such as DVD-RW (Digital Versatile Disc-ReWritable).

The method for recording broadcast data received in an optical disc recording system in which such an optical disc is mounted to record data on the mounted optical disc includes tuning a desired broadcast channel among a plurality of broadcast channels and demodulating the broadcast signal of the broadcast channel. It decodes later, and compresses by MPEG or the like to record on the mounted optical disc.

Meanwhile, in the conventional optical disc recording system, a recording or reproducing operation for each type of optical disc is performed using a good quality optical disc as a sample, and the tuning values for the respective optical disc are stored in the storage area while the tuning values for each optical disc are stored. The controller detects and performs the recording or reproducing operation according to the tuning value. If there is no such tuning value, the recording or reproducing is performed by using the optical disk mounted with the preset tuning value, thereby increasing the probability of an optical disk recording or reproducing error. Accordingly, the user has been inconvenient to record or play back using the optical disc recording system.

Accordingly, the present invention is to solve the above problems of the prior art, it is possible to perform the recording or playback operation by extracting the MID code according to the type of optical disk mounted in the optical disk recording system, and detecting the corresponding tuning value It is an object of the present invention to provide an optical disk tuning value detection method of an optical disk recording system.

In order to achieve the above object, the present invention, in detecting an optical disk tuning value for recording or playback using the optical disk mounted in the optical disk recording system, determining the type of the mounted optical disk, and Extracting a MID code, extracting a MID code for each type of pre-stored optical disc, checking whether there is the same MID code as the MID code of the mounted optical disc, and switching to the optical disc tuning mode if the same MID code is not present And detecting and storing the optical disc tuning value by tuning the mounted optical disc.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

A key technical aspect of the present invention is that, in contrast to the conventional method of recording or playing back an optical disk with a preset tuning value when an optical disk tuning value corresponding to an MID code for each type of mounted optical disk is not stored, in an optical disk recording system, After determining the type of the mounted optical disc, compare the MID code of the mounted optical disc with the MID codes of the pre-stored optical disc types, and if there is no identical MID code, switch to the optical disc tuning mode and tune the mounted optical disc to adjust the corresponding optical disc tuning values. By detecting and storing, it is possible to easily achieve the object of the present invention through such technical means.

1 is a block diagram of an optical disc recording system suitable for detecting a tuning value of an optical disc mounted according to the present invention, and includes a key input block 102, a control block 104, a tuning block 106, and a decoding block 108. , An MPEG codec block 110, a signal processing block 112, a hard disk drive 114, an optical disk loading block 116, and a program storage block 118. Here, the MPEG codec block 110 includes a MID code extraction unit 110a and an optical disc tuning unit 110b.

Referring to FIG. 1, the key input block 102 generates an operation signal for controlling the operation of an optical disc recording system, including a remote controller, for example. When a key is input to play an optical disc (for example, CD, DVD, etc.) or any broadcast data (broadcast program) recorded on a hard disk by using a controller or the like, a playback key operation signal is generated and controlled in response to the key input. To block 104, and so on.

In addition, the control block 104 performs a general operation control of the optical disc recording system, including a microprocessor, for example, and controls a control signal for selecting and tuning any broadcast channel among a plurality of received broadcast channels. And a control signal for decoding the broadcast data to the decoding block 108, and for controlling or decompressing the broadcast data in a manner such as MPEG. And a control signal for signal processing of the decompressed broadcast data to be displayed through a monitor and a speaker (not shown) to the signal processing block 112.

In addition, in the control block 104, a video codec block 1108 outputs a control signal for recording broadcast data compressed by a method such as MPEG to an attached optical disk (for example, CD, DVD, etc.) when recording using the optical disk. And a control signal for extracting any broadcast data recorded on the mounted optical disc and decompressing it in an MPEG or the like method when the data is provided to the optical disc loading block 116 and reproduced using the optical disc. And the optical disc loading block 116.

In the control block 104, the MPEG codec block 110 and the hard disk drive 114 output control signals for recording broadcast data compressed in a method such as MPEG to a built-in hard disk when recording using a hard disk. In the case of playback using a hard disk, a control signal for extracting arbitrary broadcast data recorded on the built-in hard disk and decompressing it in a method such as MPEG is provided by the MPEG codec block 110 and the hard disk drive ( 114).

Meanwhile, the control block 104 checks whether the optical disk is mounted through the optical disk loading block 116 according to the present invention, and if the optical disk is mounted, determines the type of the mounted optical disk, and then extracts the MID code of the mounted optical disk. The control signal is provided to the optical disk loading block 116 and the MPEG codec block 110, the MID code for each type of optical disk is extracted from the hard disk drive 114, and the MID code and the MID code for each type of optical disk are mounted. After comparing and checking whether there is the same MID code, and if there is no same MID code, it switches to the optical disc tuning mode.

In addition, the control block 104 provides a control signal for tuning the optical disk mounted in the optical disk tuning mode to the MPDG codec block 110 and receives the detected tuning value to the MID code (Manufacturer IDentifier) of the mounted optical disk. As a corresponding tuning value, the tuning value is transmitted to the hard disk drive 114 and stored, and when recording or playing back using any optical disk, the tuning value corresponding to the MID code for each optical disk type is extracted and recorded or played back. Control the operation.

The tuning block 106 tunes any one of a plurality of broadcast channels received through an antenna (not shown). The tuning block 106 performs demodulation and error correction on broadcast signal packet data of a selected channel extracted from a transport stream. It passes to the decoding block 108 via.

Next, the decoding block 108 restores the compressed coded broadcast signal (broadcast program signal) of the specific channel to be returned to the original signal before encoding using a decoding technique such as variable length decoding, inverse DCT, inverse quantization, and motion compensation. The recovered broadcast signal is transmitted to the MPEG codec block 110. Here, the decoding block 108 extracts additional information (for example, broadcast program guide (EPG) information, etc.) of the broadcast signal and transmits it to the control block 104 to store such information.

In addition, the MPEG codec block 110 transmits the broadcast data transmitted from the decoding block 108 to the hard disk drive 114 or the optical disk loading block 116 to record the compressed data by MPEG or the like and reproduces the data. Next, the broadcast data recorded in the hard disk drive 114 or the optical disk loading block 116 is decompressed by a method such as MPEG and transmitted to the signal processing block 112 for reproduction.

In addition, the MPEG codec block 110 extracts the MID code of the optical disc mounted through the MID code extractor 110a according to a control signal provided from the control block 104 according to the present invention, and then converts the MID code to the control block 104. In accordance with a control signal provided from the control block 104 in the optical disk tuning mode, the optical disk tuning unit 110b detects a tuning value of the mounted optical disk and provides it to the control block 104. The detection of the optical disk tuning value records a specific pattern in the inner, middle, and outer regions of the mounted optical disk, detects whether there is an error rate, and simultaneously reads the recorded pattern. This is performed by adjusting / recording / reading the output amount of a laser diode for reading recorded and recorded patterns. Accordingly, when no error occurs in the recording / reading, the wavelength value corresponding to the laser diode output amount is provided to the hard disk drive 114 as the tuning value of the optical disk.

Subsequently, in the signal processing block 112, broadcast data transmitted from the MPEG codec block 110 is signal processed and reproduced through a monitor and a speaker (not shown).

On the other hand, the hard disk drive 114 according to the control signal provided from the control block 104, the broadcast data compressed by the MPEG codec block 110, etc. delivered in the MPEG codec block 110 at the time of recording the broadcast data to the hard disk When recording and reproducing, the broadcast data recorded on the hard disk is extracted and transmitted to the MPEG codec block 110.

In addition, the hard disk drive 114 extracts the MID code for each type of optical disk stored in accordance with the MID extraction control signal according to the present invention and provides it to the control block 104, and from the optical disk tuning unit 1010b of the MPGE codec block 110. The optical disk tuning value is provided and stored as a tuning value corresponding to the MID code according to the type of the optical disk in the preset storage area.

Next, the optical disc loading block 116 is equipped with an optical disc loaded with broadcast data compressed in a manner such as MPEG transmitted from the MPEG codec block 110 at the time of recording broadcast data in accordance with a control signal provided from the control block 104. In the case of reproduction, the broadcast data recorded on the optical disc is extracted and transmitted to the MPEG codec block 110. In addition, information for determining the type of mounted optical disc is provided to the control block 104, and the MID code of the corresponding optical disc is extracted and provided to the control block 104.

The program storage block 118 stores a program for the operation of the optical disc recording system, and various application programs are extracted and provided to the control block 104 or the MPEG codec block 110 as necessary. In addition, the program storage block 118 stores a program for performing a tuning mode for the optical disc, extracts it as necessary, and provides it to the control block 104.

Next, after determining the type of the optical disc mounted in the optical disc recording system having the above-described configuration, the MID code of the optical disc is extracted and compared with the stored MID codes of the optical disc types to check whether there is the same MID code. If there is no identical MID code later, the process of switching to the optical disc tuning mode to perform recording / reading of the corresponding optical disc to detect and store the optical disc tuning value will be described.

2 is a flowchart illustrating a process of detecting and reproducing an optical disc tuning value mounted in an optical disc recording system according to the present invention. The optical disk tuning method according to the present invention will be described with reference to these drawings.

2, in the standby mode of the optical disc recording system (step 202), the control block 104 checks whether the optical disc is mounted via the optical disc loading block 116 (step 204).

As a result of the check in the step 204, when the optical disc is mounted, the optical disc loading block 116 extracts information for determining the type of optical disc according to a control signal from the control block 104 and provides it to the control block 104. As a result, the control block 104 determines the type of the mounted optical disk (step 206). Here, the type of optical disc means, for example, + R, + RW, -R, -RW, ROM, or the like.

Next, the control block 104 provides the extraction control signal to the MPEG codec block 110, and the MID code extraction unit 110a of the MPEG codec block 110 accordingly mounts the optical disk mounted in the optical disc loading block 116 accordingly. The MID code is extracted and provided to the control block 104 (step 208).

Then, the control block 104 provides the extraction control signal to the hard disk drive 114, accordingly, the hard disk drive 114 extracts the MID code for each type of optical disk and transfers it to the control block 104 (step 210). ).

Next, the control block 104 compares the mounted optical disc MID code in step 208 with the MID code for each optical disc type in step 210 according to the determined optical disc type, and checks whether there is the same MID code (step 212). .

As a result of the check in step 212, if there is no identical MID code, the control block 104 extracts a predetermined program for optical disk tuning from the program storage block 118 to switch the optical disk recording system to the optical disk tuning mode ( Step 214).

The control block 104 provides a tuning control signal to the MPEG codec block 110 according to the extracted tuning program, and the optical disc tuning unit 110b of the MPEG codec block 110 is mounted on the optical disc loading block 116. The optical disk is tuned (step 216). Such optical disk tuning records a specific pattern in the inner, middle and outer regions of the mounted optical disk, detects whether there is an error rate, and simultaneously reads the recorded pattern, and the detection of the error rate records and records the specific pattern. It is carried out by adjusting the output amount of a laser diode for reading the read pattern to write / read.

In addition, the optical disc tuning unit 110b of the MPEG codec block 110 detects a wavelength value according to the laser diode output amount as a tuning value of the optical disc when an error does not occur with respect to the above-described recording / reading. The value is provided to the control block 104, and the control block 104 stores the value as a tuning value corresponding to the MID code for each optical disk type in the hard disk drive 114 (step 218).

On the other hand, if there is the same MID code as a result of the check in step 212, after the control block 104 extracts the optical disc tuning value corresponding to the MID code of the optical disc type mounted in the program storage block 118 (step 220). The tuning value is then applied to the recording or reproducing operation of the mounted optical disc (step 222).

Subsequently, the control block 104 checks whether there is a key operation signal for reproducing data recorded on the optical disc (step 224), and if there is a play key operation signal, the optical disc with a tuning value corresponding to the MID code for each optical disc type. Is read to reproduce the optical disc (recording data) (step 224).

Therefore, after determining the type of optical disc mounted in the optical disc recording system, compare the MID code of the optical disc with the stored MID code for each type of optical disc, and if there is no identical MID code, switch to the optical disc tuning mode and perform the tuning process of the corresponding optical disc. Extract and store the optical disk tuning values, and then apply or apply the tuning values for the optical disk to record or play back data.

In the foregoing description, the present invention has been described with reference to preferred embodiments, but the present invention is not necessarily limited thereto. Those skilled in the art will appreciate that the present invention may be modified without departing from the spirit of the present invention. It will be readily appreciated that branch substitutions, modifications and variations are possible.

As described above, the present invention, unlike the conventional method for recording or playing back the optical disk with a preset tuning value when the optical disk tuning value corresponding to the MID code for each type of optical disk is not stored, in the optical disk recording system After determining the type of the mounted optical disc, compare the MID code of the mounted optical disc with the MID codes of the pre-stored optical disc types, and if there is no identical MID code, switch to the optical disc tuning mode and tune the mounted optical disc to adjust the corresponding optical disc tuning values. By detecting and storing, the tuning value corresponding to the MID code of the type of optical disc installed in the optical disc recording system can be detected to perform recording and playback using the corresponding optical disc, thereby reducing the error of recording or playback. Can be promoted.

Claims (4)

In detecting an optical disc tuning value for recording or playback using an optical disc mounted in an optical disc recording system, Determining a type of the mounted optical disc; Extracting a MID code of the mounted optical disc, extracting a MID code for each type of pre-stored optical disc; Checking whether there is a same MID code as that of the mounted optical disc; Switching to the optical disc tuning mode if the same MID code is not present; Tuning the mounted optical disc to detect and store the optical disc tuning value Optical disk tuning value detection method of the optical disk recording system comprising a. The method of claim 1, The detection method, Extracting the optical disc tuning value corresponding to the corresponding code when the same MID code exists; Applying the extracted optical disc tuning value Optical disk tuning value detection method of the optical disk recording system further comprising. The method of claim 1, The optical disk tuning value reads the recorded specific pattern at the same time as detecting whether there is an error rate after recording a specific pattern in the inner, middle and outer regions of the mounted optical disk, and the error rate does not occur. An optical disk tuning value detection method for an optical disk recording system, characterized in that the wavelength value according to the output amount of the laser diode. The method of claim 3, wherein The error rate is detected by recording and reading by adjusting the output amount of the laser diode for recording the specific pattern and reading the recorded pattern, wherein the optical disc tuning value of the optical disc recording system.

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