KR100335409B1 - Optical recording and reproducing apparatus, method and disk for providing menu function - Google Patents

Abstract

PURPOSE: An optical recording/reproducing system and method providing a menu function and a disc providing a menu function are provided to record a menu, which is composed of menu data and menu control data, on the disc with respect to data recorded by a user and display the recorded menu in the even of reproduction of data so as to allow the user to reproduce desired data. CONSTITUTION: Video data for menu, selected by a user, is recorded on a disc(502). It is judged whether the recorded menu data is for background image or thumb nail image(504). It is judged that the menu data is for the background image, the number of background images is increased by one and background image information is recorded on the disc(506,508). It is judged that the menu data is for the thumb nail image, the number of thumb nail images is increased by one and thumb nail image information is recorded on the disc(510,512).

Description

Optical recording and reproducing apparatus, method and disk for providing menu function

The present invention relates to optical recording and reproducing, and more particularly, to an optical recording and reproducing apparatus providing a menu function, a method and a disc providing the menu function.

Currently, there are VIDEO-CD and DVD Player in home video equipment using randomly accessible media. All of these devices are exclusively for reproduction, so it is only possible to read already recorded information. In addition, the menus of these devices are made by experts using professional tools, and the menu screen configuration and the operation according to the input signal using the user's remote controller are all defined, so that the user can modify the data. It is impossible.

On the other hand, the device capable of recording can change the recorded data, but the menu data must also be changed according to the data change, so that the implementation is rare when the menu structure is complicated. It is also almost impossible for users to create complex menus.

Therefore, in a recordable apparatus, menus are simply recognized as tools for marking a desired point, and there is a need for simplifying components.

An object of the present invention is to record a menu consisting of menu data and menu control data with respect to data recorded by a user on a disc in order to meet the above needs, and display the recorded menu during playback to reproduce data desired by the user on the menu. There is provided an optical recording / reproducing apparatus that provides a menu function, and a disc providing the method and menu function.

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

FIG. 2 is a diagram illustrating an example of a menu reproduced and displayed by using the apparatus of FIG. 1.

3 is a diagram illustrating the structure of menu data.

FIG. 4 is a diagram illustrating a structure of menu control data for controlling menu data shown in FIG. 3.

5 is a flowchart of a method for recording a menu consisting of menu data and menu control data.

6 is a flowchart of a method for reproducing a menu consisting of menu data and menu control data recorded on a disc.

In order to achieve the above object, there is provided an apparatus for recording and reproducing a program on a recordable and rewritable disc, the optical recording apparatus providing a menu function including a key input unit and a control unit.

The key input unit receives menu information about a program to be recorded by the user. The control unit controls to record menu data consisting of background screen data and thumbnail tomorrow image data representative of the program in the recording mode, and menu control data for controlling the menu data on the disc, and in the playback mode, the recorded menu. Display to control the user to play the desired data on the menu.

In order to achieve the above another object, a method for recording a menu corresponding to image data on a recordable and rewritable disc is provided, the menu recording method comprising first to fourth steps.

The first step is to record the menu image data selected by the user on the disc. The second step is a step of determining whether the menu data recorded in the first step is for a background screen or a thumbnail tomorrow image. In the third step, if it is determined that the background screen is used in the second step, the number of background screens is increased by one, and the background screen information is recorded on the disk. In the fourth step, if it is determined that the thumbnail image is for the thumbnail image, the number of the thumbnail image is increased by one, and the thumbnail image information is recorded on the disc.

In order to achieve the above another object, there is provided a method of reproducing a menu comprising menu data recorded on a disc capable of recording and rewriting, and menu control data consisting of menu management information, wallpaper information, and thumbnail image information. There is provided a menu reproduction method comprising the first to fourth steps.

The first step is reading the background screen information from the menu control data and reading information on the background data position, the display size, the maximum number of thumbnail images that can be displayed, and the display position of thumbnail images. The second step is reading the thumbnail tomorrow image information from the menu control data and reading information on the thumbnail tomorrow image data position, display size, and target position. The third step is to reproduce and display the menu background screen. In the fourth step, the thumbnail tomorrow image data is reproduced and displayed according to a predetermined position and number on the background screen reproduced in the third step.

In order to achieve the above another object, there is provided a disc providing a menu function in a disc capable of recording and rewriting a program.

The disc records menu data consisting of background data and thumbnail image data representing the program, menu management information, menu control data for controlling the menu data including background information and thumbnail image information. do.

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

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

The optical recording / reproducing apparatus shown in FIG. 1 includes a disk 102, a pickup section 104, an RF amplifier 106, a digital signal processor 108, an AV codec 110, a servo section 112, and a controller 114. And a key input unit 116. Referring to the operation of the apparatus shown in Figure 1 divided into recording mode and operation mode as follows.

In the recording mode, the AV codec 110 compresses and encodes audio and video data input from the outside by a predetermined compression encoding scheme. The digital signal processor 108 adds additional data for ECC (Error Correction Code) processing to the data encoded by the AV codec 110, and modulates the data by a predetermined modulation scheme. The RF amplifier 106 amplifies the data output from the digital signal processor 108 and converts it into an optical signal. The pickup unit 104 incorporates an actuator, and records the optical signal converted by the RF amplifier 106 on the disc 102. The servo unit 112 receives information necessary for servo control from the digital signal processor 108 through the RF amplifier 106 and the controller 114 to perform a stable servo function with respect to the pickup unit 140. The control unit 114 controls the entire system and executes the above-described recording process on the disc 102 with menu data for a program to be recorded through the key input unit 116 and menu control data for controlling the menu data. Control to record through.

The menu data is composed of background picture data and thumbnail image data, and is illustrated in FIG. 3. A thumbnail tomorrow image represents a certain unit of data on recorded audio and video data such as a title or a program and is superimposed on the background screen in a small size. The menu data of FIG. 3 includes n background data and m thumbnail tomorrow image data. The menu data may be continuously added with a background screen or a thumbnail tomorrow. Therefore, each recording area corresponding to the background screen and the thumbnail tomorrow image is not separately but is continuously mixed with the data in the order of recording. It is also possible to reproduce a desired background screen or thumbnail image by managing the position of each background screen or thumbnail image in menu control data described later.

FIG. 4 is a diagram illustrating a structure of menu control data for controlling menu data shown in FIG. 3. The menu control data is composed of menu management information, background screen information, and thumbnail image information. The menu management information manages the menu as a whole, and has information on the location of the background screen and the number of thumbnail images, the background information and the location of the thumbnail image information.

The wallpaper information includes the start and end positions of the wallpaper data, the position of the next wallpaper information, the size of the wallpaper display, the maximum number of thumbnail images that can be superimposed on the wallpaper (n), and the thumbnail image display position (1 To n). Since the size of the background information varies depending on the number of thumbnail images that can be displayed on the background, each piece of information is linked in the form of a linked list using the location of the next background information. have. In the case of the last background screen information, it indicates that it is the last at the location of the next background information.

The thumbnail image information includes target position information having start and end positions of the thumbnail image data, a thumbnail image display size, and a playback position of a program corresponding to the selected thumbnail.

On the other hand, in the playback mode, the pickup unit 104 reads out the data stored in the disc 102 and outputs it as an optical signal. The RF amplifier 106 converts the optical signal output from the pickup unit 104 into an electrical signal to extract modulated data, and generates a servo signal for performing a stable servo function using the electrical signal.

The digital signal processor 108 demodulates the data modulated by the RF amplifier 106 and performs ECC to remove the additional data while correcting errors. The servo unit 112 performs a stable servo function using the servo signal generated by the RF amplifier 106. The AV codec 110 decodes and outputs audio and video data compressed and compressed by the digital signal processor 108. The control unit 114 reproduces the menu recorded on the disc 102 through the pickup unit 104, the RF amplifier 106, the digital signal processor 108, and the AV codec 110 to display data desired by the user on the menu. Control to play.

FIG. 2 is a diagram illustrating an example of a menu reproduced and displayed by using the apparatus of FIG. 1. One background screen is displayed, and three thumbnail images # 1-# 3 are superimposed on the background screen. When the menu is displayed as shown in FIG. 2, when a user selects a specific one of the displayed thumbnail images, a title or a program represented by the selected thumbnail images is played.

5 is a flowchart of a method for recording a menu consisting of menu data and menu control data.

First, the menu image data selected by the user is recorded in the same format as the menu data of FIG. 3. (Step 502) It is determined whether the menu data recorded in step 502 is data for a background image or data for a thumbnail tomorrow image. (Step 504) If the data for the background screen in step 504, the number of wallpaper is increased by one (step 506), and the background information shown in Fig. 4 is recorded on the disk (step 508). If the data is for video, update the number of images of the thumbnail tomorrow by one (step 510), and record the image of the thumbnail tomorrow shown in FIG. 4 on the disk (step 512). This completes the recording operation for the menu.

6 is a flowchart of a method for reproducing a menu consisting of menu data and menu control data recorded on a disc.

To reproduce the menu, first, the background information is read (step 602). The position of the background information in the menu management information of the menu control data shown in Fig. 4 (# 1, # 2, .. in the background information). Section) and lead the background information to be played back. Through this operation, information about the position of the background data to be reproduced, the display size, the maximum number of displayable thumbnail images, and the display position of the thumbnail images are obtained.

For example, if the position of the background information is # 1, first, the start / end position of the background data (B1 of FIG. 3) from the menu control data, and the position and background of the next background information (background information # 2 of FIG. 4). Get the screen display size. Next, the number n of maximum thumbnail images that can be displayed superimposed on the background data # 1 and the display positions 1 to n of the thumbnail images are obtained. Here, when selecting a wallpaper to be played, the wallpaper data may be sequentially selected one by one or randomly selected regardless of the order. This is an option for the manufacturer of the device.

Next, an operation of reading thumbnail image information corresponding to the maximum number of thumbnail images (T1 to Tn) that can be displayed on the background screen obtained above (step 604) is performed. Get information about image display size and target location tomorrow. If the maximum number of thumbnail images is larger than the number of thumbnail images recorded in the menu data, only the number of thumbnail images existing in the menu data is read.

The background information for the menu is reproduced and displayed (step 606), and the thumbnail tomorrow image is reproduced and displayed according to the position and number determined in the background information (step 608).

Through this process, the menu as shown in FIG. 2 is reproduced. If the user selects any one of the thumbnail tomorrow images through the key input unit 116 (step 610), the target position indicated by the selected thumbnail tomorrow image is reproduced (step 614).

If the next thumbnail image is to be displayed without selecting thumbnail tomorrow in step 610 (step 612), the method returns to step 602 to obtain information on the newly selected background image, and to obtain information on the corresponding thumbnail image as described above. By displaying it to the user, the playback operation for the menu is completed.

The present invention is not limited to the above-described embodiment, and of course, modifications may be made by those skilled in the art within the spirit of the present invention.

According to the present invention, in recording and reproducing audio and video data using a disc, a menu consisting of menu data and menu control data is recorded on a disc with respect to data recorded by a user, and during playback, the recorded menu is displayed by displaying a menu. The user can play the data he / she wants. In particular, when the thumbnail image is to be removed during editing, only the corresponding thumbnail image needs to be removed from the data structure, which does not require updating of complex location information.

Claims (5)

A method of recording a menu corresponding to image data on a disc capable of recording and rewriting, the method comprising: A first step of recording the menu image data selected by the user on a disc; A second step of determining whether the menu data recorded in the first step is for a background screen or a thumbnail tomorrow image; If it is determined in the second step that the background screen is used, a third step of updating the number of background screens by one and recording the background information on the disk; And And if it is determined in the second step that the thumbnail image is for the thumbnail image, increasing the number of thumbnail images by one, and recording the thumbnail image information on the disc. A method of reproducing a menu comprising menu data recorded on a disc capable of recording and rewriting, and menu control data consisting of menu management information, wallpaper information, and thumbnail image information. Reading background image information from the menu control data and reading information on a background image data position, a display size, a maximum number of thumbnail images that can be displayed, and a thumbnail image display position; A second step of reading thumbnail tomorrow image information from the menu control data and reading information on thumbnail tomorrow image data position, display size, and target position; A third step of playing and displaying a menu background screen; And And a fourth step of reproducing and displaying the image data of Thumbnail tomorrow according to a predetermined position and number in the background screen reproduced in the third step. The method of claim 2, wherein the lead of the background information in the first step is The menu playback method, characterized in that to read the background data sequentially one by one. The method of claim 2, wherein the lead of the background information in the first step is The method of playing a menu, characterized in that to randomly read the background data. The method of claim 2, And reading information as many as the number of thumbnail images present in the menu data when the number of the maximum number of thumbnail images that can be displayed in the menu data is larger than the number of the thumbnail images recorded in the menu data. How to play.