KR100297749B1 - Optical recording/reproduction apparatus and method having a menu service function - Google Patents

Abstract

PURPOSE: An optical recording reproducing device and a method thereof are provided to reproduce a desired title selected on a menu by creating a menu with respect to a user-desired title in real time and displaying a recorded menu in a reproduction mode. CONSTITUTION: An AV CODEC(Audio/video corder/decoder)(110) receives an audio signal and a video signal being inputted from an exterior and compresses and codes data by a predetermined a compression coding system in a recording mode. A DSP(digital signal processing unit)(120) adds additional data for an ECC(Error Correction Code) process to coded data being applied in the AV CODEC(110), and modulates the ECC coded data by a predetermined a modulation system and generates modulated data. An RF amplifier(130) converts electric data being applied in the DSP(120) into an amplified optical signal. A pickup unit(140) records the optical signal being applied from the RF amplifier(130) on a disk(150) and stores an actuator for performing a focusing and a tracking for operating the disk(150). A servo unit(160) receives information necessary for a servo control from the DSP(120) through the RF amplifier(130) and a system controller(170) and controls a pickup unit. The system controller(170) recognizes menu constitution information with respect to a title to be recorded by a user and constitutes menu control data and menu data and records the data on the disk(150).

Description

Optical recording / reproduction apparatus and method having a menu service function}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of optical recording and reproducing, and more particularly to an apparatus and method for recording and playing back a menu for a title and / or a menu using a rewritable disc. It relates to a disc on which data is recorded.

Optical recording and reproducing apparatuses such as a digital versatile disc random access memory (DVD-RAM) driving apparatus have not yet proposed a standardized menu function.

The conventional video recording / reproducing apparatus has a simple OSD (On Screen Display) function because the menu configuration is difficult in real time.

In order to solve the above problems, it is an object of the present invention to provide a device capable of reproducing a desired title selected on a menu by generating a menu for a title desired by a user in real time and displaying a recorded menu during playback.

Another object of the present invention is to provide a method of recording various types of menus in real time, and when moving, using the recorded menus to move, modify and play a desired title.

It is still another object of the present invention to provide a disc on which menu data and menu control data are recorded to perform a menu function.

In order to achieve the above object, an optical recording and reproducing apparatus having a menu function according to the present invention is an apparatus for recording a desired title on a rewritable disc, comprising: an input unit for inputting menu configuration information for a title to be recorded and a recording; In the mode, the menu control data including the information necessary for controlling the menu data is modified according to the menu data and the menu configuration information, so that the menu is recorded on the disc. The playback mode includes a system controller for controlling the menu playback. It is characterized by.

In order to achieve the above another object, the menu recording method according to the present invention is a method of recording a menu for a title to be recorded on a rewritable disc, comprising a menu item indicating a title to be recorded and a main menu. Configuring menu data, selecting an area where the current menu item is to be displayed on the main menu, connecting the current menu item to a menu item linked list to configure menu control data, and a menu consisting of menu control data and menu data It characterized in that it comprises the step of recording.

The reproducing method according to the present invention is characterized by including reproducing a main menu using menu control data and displaying a menu item on the main menu using the menu control data.

In order to achieve the above another object, a disc on which data for performing a menu function according to the present invention is recorded is a disc capable of rewriting audio and video data for a title or program selected by a user, and performs a menu function. To this end, menu data comprising a main menu used as a background image and a menu item indicating a title, and menu control data including information necessary for controlling the menu data are recorded.

1 is a block diagram according to an embodiment of an optical recording and reproducing apparatus provided with a menu function according to the present invention.

2 is a configuration example of a menu provided in the present invention.

3A and 3B are diagrams showing a relationship between menu control data constituting a menu and menu data.

4 is a flowchart according to an embodiment of a method for recording a menu according to the present invention.

5 is a flowchart according to an embodiment of a method for reproducing a menu according to the present invention.

Hereinafter, with reference to the accompanying drawings, an embodiment of an optical recording and reproducing apparatus for a menu function, a method thereof, and a disk on which data for performing this function are recorded will be described.

An optical recording and reproducing apparatus having a menu function using a recordable and rewritable disc is shown in FIG. The functions of the optical recording / reproducing apparatus shown in FIG. 1 can be broadly divided into recording and playback. In the recording mode, an audio / video encoder and decoder (hereinafter referred to as AV codec: 110) is an external audio and video signal. The data is compressed and encoded by a predetermined compression coding scheme, and the digital signal processor (DSP) 120 adds additional data for ECC (Error Correction Code) processing to the encoded data applied by the AV codec 110. In addition, the ECC-coded data is modulated by a predetermined modulation system to generate modulated data.

The high frequency (RF) amplifier 130 converts electrical data applied from the DSP 120 into an amplified optical signal. The pickup unit 140 records an optical signal applied from the RF amplifier 130 on the disk 150, and includes an actuator that performs focusing and tracking to drive the disk 150.

The servo unit 160 receives the information necessary for servo control from the DSP 120 through the RF amplifier 130 and the system controller 170 and performs a stable servo function for controlling the pickup unit 140.

The system controller 170 controls the entire system, recognizes the menu configuration information on the title to be recorded by the user through the key input unit 180, and configures the menu control data and the menu data to be described above on the disc 150. Record through the recording process.

On the other hand, in the playback mode, the pickup unit 140 reads out the stored data from the disk 150 and outputs the optical signal. The RF amplifier 130 converts the optical signal into an electrical signal to extract modulated data, and generates a servo signal for performing stable servo using the electrical signal.

The DSP 120 demodulates the modulated data and performs ECC on the demodulated data to correct an error, thereby removing additional data, and the servo unit 160 uses a servo signal applied through the RF amplifier 130. Various servos are driven to stabilize. The AV codec 110 decodes the compressed coded audio and video data transmitted from the DSP 120 to finally output the decoded audio and video signals.

The system controller 170 reproduces the menu recorded on the disc 150 through the pickup unit 140, the RF amplifier 130, the DSP 120, and the AV codec 110 to display the menu through the key input unit 180. Recognizing the key input according to the movement, modification and playback of the control to perform a function corresponding to the recognized key.

Then, the audio and video data for the title corresponding to the desired menu item selected by the user using the displayed menu image is displayed on the display.

Next, a menu recording method and a reproduction method for a menu function will be described. First, an example of the configuration of a menu provided in the present invention is shown in FIG.

In Fig. 2, the menu finally displayed to the user is composed of a main menu used as a background of the menu and a menu item indicating a recording content of a disc on which a title or a program is recorded, so that a predetermined number of menu items are displayed on the main menu. Is displayed. That is, when the user selects any one of the menu items displayed in the menu, the corresponding title or program is selected and played.

Here, the menu item is a kind of sub-picture displayed on the main menu, and each menu item is displayed in various shapes according to the mode, and the menu item of the mode corresponding to the key input by the user is displayed. Is displayed in the final menu.

For example, if A, A ', A ", B, B', B", C, etc. are included in the menu items shown in FIG. 2, three types of menu items are displayed in the normal mode. Shape, A 'and B' are displayed in a selection mode for selecting menu items A and B, respectively, and A " and B " are respectively used for executing A and B menu items by the user. In this figure, one menu item has three display shapes and is displayed in different shapes according to the display mode (normal mode / selection mode / execution mode).

3 (a) and 3 (b) show a relationship between menu control data and menu data according to the present invention. The actual data of the menu shown in Fig. 2 exists in the menu data shown in Fig. 3B, and the menu control data shown in Fig. 3A shows the relationship between the menu data.

This menu control data has MCD (Menu Control Data) information having information on the overall menu data, which includes information indicating the main menu shown in FIG.

This MCD information includes the number of menu items that can be displayed in the main menu, the menu item image data offset information according to the display mode in the menu items, information on the locations where each menu item is displayed, and the initial menu screen. It contains a menu item to be selected by default, information indicating a list of menu items connecting several menu items.

Here, in the menu item list indicated by the MCD information, each menu item is configured in the form of a linked list.

Each menu item is a title number (or program number) indicated by the menu item, a menu item index pointing to the image data for the menu item to be actually displayed according to the display mode, a position of the menu item to be actually displayed, and a menu to be displayed next. It consists of the next menu item, etc. that points to the item.

Also, at the end of the list of menu items, the next menu item indicates its own menu item to indicate the end of the list.

Menu data and menu control data containing information about the menu data are basically stored on the disc. If no audio and video data is recorded on the disc, the menu item list does not exist and only basic MCD information exists. Only the menu data consisting of the menu control data, the image data for the main menu and the image data for the menu item exist on the disc.

Such menu data and menu control data are used to compose a menu therefor while recording audio and video data of a desired program or title, that is, modifying and recording menu control data by menu configuration information according to a desired program or title. The menu item for the desired program or title is selected in the menu data and randomly assigned. The menu thus constructed may be modified by the user to another desired menu item during playback.

4 is a flowchart according to an embodiment of a method of configuring a menu while modifying menu control data in a recording mode for recording audio and video data of a desired title (or program).

In Fig. 4, when the recording mode is set by the user's key input (step S101), the title number for the currently recorded title is assigned with reference to the title recorded on the current disc (step S102). A menu item indicating is randomly assigned and recorded in the menu data (step S103). The arbitrary assignment of these menu items can also be modified by other menu items as desired by the user. This will be described in FIG. 5.

Next, the menu item for the title to be recorded currently is selected in the area to be displayed on the main menu (step S104), which is the displayable position in the MCD information in the menu control data and the number of menu items that can be displayed on the main menu. Use to select.

Then, if the title currently recorded is the first title, the current menu item is linked to the next menu item in the MCD information, otherwise the current menu item is linked to the next menu item in the linked list of previous menu items, and the current menu. By setting the item as the last menu item, the menu control data in which the menu item list is modified is recorded (step S105).

The recording operation is terminated by finishing title recording for this menu and performing title recording that actually records audio and video data (step S106).

5 is a flowchart according to an exemplary embodiment of a menu reproducing method of reproducing a desired title while reproducing menu data when there is menu data in a reproducing mode for reproducing audio and video data recorded on a disc.

In Fig. 5, when the reproduction mode is set (step S201), the main menu corresponding to the read menu control data is reproduced (step S202).

Thereafter, all menu items in the linked list of menu items are played back, that is, whether the next menu item in the menu control data exists (step S203), and if the next menu item in the menu control data exists, the menu on the linked list exists. The position of the actual data of the menu item to be displayed, the position data to be displayed, the corresponding title number, etc. are read from the item (step S204), and the menu item corresponding to the data read out in step S204 is displayed in the normal mode (S205). step).

Here, the method displayed in the normal mode is implemented by displaying the menu item image corresponding to the normal mode by using the menu item image data offset information according to the menu item display mode existing in the MCD information.

If the next menu item in the menu control data does not exist after performing step S205 or in step S202, the menu item for the initial menu screen, that is, the first menu item or an arbitrary menu item is displayed in the selection mode (step S206). .

Here, the method to be displayed in the selection mode is implemented by displaying the menu item image corresponding to the selection mode by using the menu item image data offset information according to the menu item display mode existing in the MCD information.

In this way, playback of the menu recorded on the disk is finished, and menu items are moved, modified, and played back in response to key input from the user.

First, when the shift key of the menu item is input by the user (step S207), the current menu item is displayed again in the normal mode (step S208), and then displayed in the selection mode for the new menu item selected by the input shift key. (Step S209).

On the other hand, if the menu item shift key is not input in step S207 and the menu item modification key is input (step S210), the currently selected menu item is modified to the newly selected menu item (step S211), and the newly selected menu item is selected. (Step S212).

Here, the menu item modification performed in step S211 may be selected and modified by the user among all menu items existing in the menu data shown in FIG. 3, and by modifying only a menu item index value indicating a menu item in the menu control data. Modifications are possible.

On the other hand, if the menu item modifier key is not input in step S210 (step S213), the currently selected menu item is displayed again in the execution mode (step S214), and the title indicated by the current menu item is displayed. Search and play (step S215).

Here, the method of searching for a title follows a conventional method. In addition, the method of displaying the menu item in the execution mode is implemented by displaying the menu item image corresponding to the execution mode by using the menu item image data offset information according to the menu item display mode existing in the MCD information.

According to the present invention, when recording audio and video data on a recordable and rewritable disc using the convenience of random access, a menu can be constructed in real time and various menus can be configured according to the title and mode to be recorded. When the contents of the disc are played back, the movement, modification and playback of the menus are easily performed by an interface with the user through key input while playing the recorded menu, thereby allowing the user to find and play the desired title more conveniently and easily.

As described above, the present invention can record various shapes of menus for desired titles on a rewritable disc in real time, and can move, modify, and reproduce desired titles by a user interface method when playing them. It has the effect of providing convenient menu functions.

Claims (12)

A device for recording a desired title on a rewritable disc: An input unit for inputting menu configuration information for a title to be recorded; And In the recording mode, menu data consisting of a menu item representing a main menu and a title and menu control data including information necessary for controlling the menu data are modified according to the menu configuration information, so that the menu is recorded on the disc. Configuring menu data consisting of a menu item and a main menu, the system controller including a system controller for controlling playback of the menu in the playback mode; (b) selecting an area in which the current menu item is to be displayed on the main menu, and configuring menu control data by connecting the current menu item to a menu item connection list; And and (c) recording a menu consisting of the menu control data and menu data on the disc. The method of claim 7, wherein the step (a), (a1) assigning a title number of a title to be currently recorded with reference to the title recorded on the disc; And and (a2) randomly allocating a menu item indicating a current title in the menu data. The method of claim 7, wherein in step (b), If the title currently recorded is the first title, the current menu item is linked to the next menu item in the main menu data information, otherwise the current menu item is linked to the next menu item of the previous menu item, and the last menu item is Setting as a menu item to modify a menu item connection list of menu control data. The method of claim 7, wherein in step (b), And an area in which the current menu item is to be displayed on the main menu is selected using displayable position information in the menu control data and information on the number of menu items that can be displayed on the main menu. A method for reproducing a menu from a rewritable disc having menu data consisting of a main menu and menu items corresponding to each title, and menu control data including information necessary for controlling the menu data in a predetermined area, are recorded: (a) reproducing a main menu using the menu control data; And and (b) displaying a menu item on the main menu using the menu control data. The method of claim 11, wherein step (b) comprises: (b1) reading information on menu items in the menu item connection list of the menu control data and displaying the information in a normal mode; And (b2) displaying the menu item for the initial menu screen in a selection mode. The method of claim 12, wherein the normal mode display and the selection mode display are menu items corresponding to the normal mode and the selection mode, respectively, by using menu item image data offset information according to the menu item display mode existing in the menu control data. A playback method characterized by displaying an image. The method of claim 11, (c-1) displaying the current menu item in a normal mode according to a movement key input of the menu item; And and (d-1) displaying a new menu item corresponding to the input movement key in the selection mode. The method of claim 11, (c-2) modifying the currently selected menu item into a newly selected menu item according to a menu item modification key input; And (d-2) displaying the modified new menu item in the selection mode. The reproduction method according to claim 15, wherein in step (c-2), only a menu item index value indicating a menu item in the menu control data is modified. The method of claim 11, (c-3) displaying the currently selected menu item in an execution mode when a menu item play key is input; And (d-3) playing the title corresponding to the currently selected menu item. 18. The method of claim 17, wherein the execution mode display is characterized by displaying a menu item image corresponding to an execution mode by using menu item image data offset information corresponding to a menu item display mode existing in the menu control data. How to play.