KR101106640B1 - Optical disc system and its control method - Google Patents

Abstract

Disclosed are an optical disc system and a control method thereof, which can switch playback decks according to a user's request.

The disclosed invention includes a plurality of decks capable of individually reproducing a plurality of recording media; A storage unit which stores information related to playing of the plurality of decks; And reproducing environment information at the time of the first playback in the storage unit in response to a user command to play using the other deck during the first playback in any one of the plurality of decks, and storing the same recording medium on the same deck. And a control unit for reproducing according to the reproducing environment information stored in the first replay in response to a user command for reproducing the second replay.

The disclosed invention further reproduces the recording medium on the first deck first; Store playback environment information of the first deck in response to a user command to play on the second deck during primary playback on the first deck; Playing a recording medium in the second deck; If there is a user command for secondary reproduction of the first deck while the recording medium is reproduced in the second deck, the secondary deck is reproduced according to the stored environment information of the first deck.

Description

Optical Disc System And Control Method Thereof

1 is a block diagram of an optical disk system according to the present invention.

2 is a flowchart illustrating a control method of an optical disc system for switching a playback deck according to the present invention.

Description of the Related Art [0002]

10, 40: optical disc

20, 50: 1st, 2nd deck

100: control unit

101: storage unit

The present invention relates to an optical disc system and a control method thereof, and more particularly, to an optical disc system and a method of controlling the same, which can switch playback decks according to a user's request.

Optical disc systems with double decks have been developed for playing or recording optical discs. An optical disc can be inserted into both decks to perform operations such as play, stop, and record according to a user's request. Usually, an optical disc is played and recorded on one deck, and only the other deck is played.

When playing the optical disc on one deck and receiving the play off command (paly off), the play position of the optical disc is stored, and when the play command is received again, the play position is continued from the previous play position by using the stored play position. To play. In addition, even when a power stop command is input during the reproduction of the optical disc, the position of the optical disc to be reproduced is stored, and when the power on command is received later, the position can be reproduced from the previous using the stored reproduction position.

On the other hand, even if a playback switch command is inputted to play on the other deck during playback on one deck, the playback position can be stored, and the playback can be started from the stored playback position when the other deck is played and then played back on the first deck.

By the way, when the playback deck is switched in this way, especially when the recording medium to be played is DVD-video, playback can be started from the previous playback position using the stored playback position as described above. Since the environment information does not include audio environment information and subtitle information (subtitle language information) at the time of previous playback, a playback defect may occur that reproduces the audio environment and subtitle (subtitle language) differently from the previous playback. Can be.

SUMMARY OF THE INVENTION The present invention has been made in view of the prior art as described above, and an object of the present invention is to store a playback deck by storing and playing back playback environment information including audio environment information and subtitle information when switching the playback deck. The present invention provides a double deck optical disc system and a control method thereof for switching a playback deck to prevent playback defects occurring at the time of switching.

The present invention for achieving the above object is an optical disc system, comprising: a plurality of decks capable of individually reproducing a plurality of recording media; A storage unit which stores information related to playing of the plurality of decks; And reproducing environment information at the time of the first playback in the storage unit in response to a user command to play using the other deck during the first playback in any one of the plurality of decks, and storing the same recording medium on the same deck. And a controller for reproducing according to the reproducing environment information stored during the first replay in response to a user command for reproducing the second replay.

The control section sets the contents of the reproduction environment information according to the type of recording medium.

The control unit includes audio environment information and subtitle information at the time of reproduction in the reproduction environment information when the recording medium is a video.

According to an aspect of the present invention, there is provided a control method of an optical disc system having a plurality of decks, the method comprising: firstly reproducing a recording medium from a first deck; Store playback environment information of the first deck in response to a user command to play on the second deck during primary playback on the first deck; Playing a recording medium in the second deck; If there is a user command for secondary reproduction of the first deck while the recording medium is reproduced in the second deck, the secondary deck is reproduced according to the stored environment information of the first deck.

The type of the recording medium to be reproduced in the first deck is determined, and the content of the reproduction environment information is set according to the type of the recording medium.

When the recording medium is DVD-Video, an audio stream number and a subtitle stream number are stored in the reproduction environment information.

The audio stream number represents the audio quality and the number of channels at the time of reproduction, and the subtitle stream number represents the subtitle language displayed on the screen at the time of reproduction.

Hereinafter, preferred embodiments of the present invention will be described in detail.

As shown in FIG. 1, the optical disc system according to the present invention includes a first deck 20 for inserting and recording and reproducing the optical disc 10, and a second deck 50 for inserting and reproducing the optical disc 40. Optical disks to be applied to the present invention are DVD-ROM, DVD-R, DVD-RW, DVD-RAM and the like, and the format of the optical disk includes various kinds (for example, V-mode and VR-mode).

The first and second decks 20 and 50 include an optical pickup and an optical pickup driver, not shown, for emitting laser light to read or write data.

First and second key input units 30 and 60 for inputting user commands related to the processing operations of the optical discs 10 and 40 are provided in the first and second decks 20 and 50, respectively. Here, the first and second key input units may be integrated to form a single key input unit.

The user command input through the first and second key input units is provided to the controller 100 through the interface unit 70. In response to the user command, the controller 100 controls the general components.

When the recording / reproducing signal processor 80 reproduces the optical disc 10 of the first deck 20, the recording / reproducing signal processor 80 encodes the recording data read from the optical disc 10 and sends the encoded data to the external signal processor 110. 110 performs signal processing for video and audio output and transmits the signal to the TV 130. In addition, the external signal processor 110 processes the external video and audio signals (external A / V) input from the tuner 120 and sends them to the recording / playback signal processor 80, and the recording / playback signal processor 80 The external A / V is decoded and recorded on the optical disc 10 of the first deck 20. Meanwhile, the external signal processor 110 may receive an external A / V from the tuner 120 and perform signal processing for outputting video and audio, and then directly transmitting the signal to the TV 130.

The reproduction signal processor 90 encodes the recording data read from the optical disc 40 of the second deck 50, and transmits the recorded data to the TV 130 through the external signal processor 110 when outputting externally for reproduction. The recording data read at 40 can be transferred to the recording / playback signal processing unit 80 and copied to the recording optical disc.

The user command provided from the TV 130 may, for example, view a guide letter provided on the screen of the TV and select a desired user command using an input key or a remote control of the TV. The control unit controls various components according to a user command.

The playback switching key is provided in the key input unit 30, 60, and inputs a user command for playing on one deck and playing back on the other deck using the playback switching key according to the user's operation. In addition, the playback switching command may be input to the controller 100 using a remote controller or the like on the screen of the TV.

In response to the playback deck switching command, the controller 10 stores the playback environment information including the playback position in the storage 101, and then plays back an optical disc of another deck. In this case, the control unit 100 stores the reproduction environment information including audio environment information and subtitle information (subtitle language information) when the recording medium being played is a specific optical disc, for example, a DVD-video. When the recording medium being reproduced is a general optical disc instead of a specific optical disc, the reproduction environment information is stored except for the audio environment information and subtitle information. In this case, the audio environment information includes information for setting a sound quality and a channel of the audio, and the subtitle information includes information for setting a language of a subtitle displayed on the screen.

The control unit stores the reproduction environment information in the storage unit whenever a reproduction switching command for switching the reproduction deck is input, and appropriately stores the contents of the reproduction environment information determined according to the type of the recording medium.

Hereinafter, a description will be given with reference to FIG. 2 based on an operation of alternately reproducing between the first deck 20 and the second deck 50.

First, an optical disc is inserted into the first deck 20 for playback (200), and it is determined whether a command is input to the playback switching key by the user during playback (202). It is judged whether the video is a DVD-video (204), and if it is determined that the recording medium is the video, the storage unit stores not only the playback position but also the playback environment information including the audio stream number and the subtitle stream number at the time of playback. Stored at 101 (206). If it is determined in operation 204 that the recording medium is not DVD-Video, general playback environment information including the playback position at the time of playback is stored (208).

After storing the reproduction environment information for the optical disc of the first deck, the controller 100 stops the reproduction operation of the first deck 20 (210).

Subsequently, it is determined whether there is the reproduction environment information of the previously stored second deck (212), and if there is the reproduction environment information, the optical disc of the second deck 50 is reproduced according to the reproduction environment information (214). If there is no reproduction environment information, the optical disc of the second deck 50 is reproduced according to the reproduction environment information of the initial value (216).

As described above, it is determined whether a user command by the playback deck switching key is input during the playback of the optical disc of the second deck 50 (218). Proceed to operation 212 for playback.

If the playback switching key is input as a result of the determination in operation 218, it is determined whether or not the recording medium of the second deck 50 is a video (220). The reproduction environment information including the audio stream number and the subtitle stream number at the time is stored in the storage unit 101 (222). If it is determined in operation 220 that the recording medium is not DVD-Video, general playback environment information including the playback position at the time of playback is stored (224).

After storing the reproduction environment information for the optical disc of the second deck, the controller 100 stops the reproduction operation of the second deck 50 (226).

Subsequently, it is determined whether there is the reproduction environment information of the previously stored first deck (228), and if there is the reproduction environment information, the optical disc of the first deck 20 is reproduced according to the reproduction environment information (230). Here, when the recording medium of the first deck to be played back is DVD-Video, the same audio environment and subtitle (subtitle language) as in the previous playback can be reproduced.

If there is no reproduction environment information, the optical disc of the first deck 20 is reproduced according to the reproduction environment information of the initial value (232).

It is determined whether a user command by a stop key is input while playing the optical disc of the first deck 20 (234). If the stop key is not input as a result of the determination, the operation proceeds to operation 202 to repeat the above-described process. When the stop key is input as a result of the determination, general playback environment information including the playback position is stored (236), and the first deck 20 is then stopped.

As described above, according to the present invention, the playback environment information is stored in response to a playback switching command for playback on a deck other than the deck currently being played. When the recording medium to be played is like a video, the audio environment information and the subtitle are stored. The playback environment information, including the information, can be stored and used to reproduce the audio environment and subtitles as in the previous playback.

Claims (7)

In an optical disc system, A plurality of decks capable of individually reproducing a plurality of recording media; A storage unit which stores information related to playing of the plurality of decks; And The playback environment information at the time of the first playback is stored in the storage unit in response to a user command to play using the other deck during the first playback on any one of the plurality of decks, and is stored in the same recording medium of the same deck. And a controller for reproducing according to the reproducing environment information stored during the first replay in response to a user command for reproducing the second replay. The optical disc system according to claim 1, wherein the control unit sets contents of reproduction environment information according to a type of the recording medium. The optical disc system as claimed in claim 2, wherein the control unit includes audio environment information and subtitle information at the time of reproduction in the reproduction environment information when the recording medium is DVD-Video. In the control method of an optical disk system having a plurality of decks, Primary playback of the recording medium in the first deck; Store playback environment information of the first deck in response to a user command to play on the second deck during primary playback on the first deck; Playing a recording medium in the second deck; And if there is a user command for secondary reproduction of the first deck while the recording medium is reproduced in the second deck, secondary reproduction is performed according to stored environment information of the first deck. 5. The control method according to claim 4, wherein the type of the recording medium to be reproduced in the first deck is determined, and the content of the reproduction environment information is set according to the type of the recording medium. 6. The control method of an optical disc system according to claim 5, wherein when the recording medium is DVD-Video, an audio stream number and a subtitle stream number are stored in the reproduction environment information. 7. The control method of an optical disc system according to claim 6, wherein the audio stream number indicates audio quality and channel number at the time of reproduction, and the subtitle stream number indicates a subtitle language displayed on the screen at the time of reproduction.

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