KR100274779B1 - A method of reserving and playing background picture - Google Patents

Abstract

PURPOSE: A method for performing a reserved reproducing of a background picture is provided to select an optional background picture as a reserved background picture during a reproducing operation, and to reproduce the selected background picture by a request of a user. CONSTITUTION: Picture data in an optional list on a disk are reproduced with the performance of music data. If a background picture-reserving key is inputted, a start position of a reproducing list is calculated. The start position of the reproducing list is stored. If a reserved background picture-selecting key is inputted, the start position stored on the disk is searched. And the picture data are reproduced from the searched reproducing position.

Description

How to reserve background video

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for pre-reserving and playing a background image for selecting and storing a position of the image data being reproduced and playing back from the stored position upon user's request. When playing the background image, the user selects and saves the playback position of the video signal that is being played as the accompaniment background image, and when the user requests the reserved background image playback mode, the video is played along with the music accompaniment from the previously stored playback position. The present invention relates to a method of pre-playing a background image that allows a user to sing in accompaniment with an image of a user's taste as a background.

In general, a MIDI CD refers to a CD in which both MIDI data and lyrics data for music accompaniment are recorded, as well as video data of video and audio, among compact discs (hereinafter referred to as compact discs). .

After reading the lyrics and music data from such a MIDI CD, the CD CD playing the song accompaniment function by playing it together with image data reproduction, has the surface of the disc as shown in FIG. Pick-up unit 10 for detecting a recording signal from the; A motor (M) for rotating the disk; A drive unit 13 driving the pickup unit 10 and the motor M; An R / F unit 12 for filtering the signal detected by the pickup unit 10; The servo unit 20 controls the driving of the drive unit 13 from the output signal of the R / F unit 12 and the rotational speed of the disc, and detects the synchronization of the output signal of the R / F unit 12. ); A digital signal processor (30) for restoring a signal read by the R / F unit (12) to a digital signal and restoring the original moving picture compressed data or MIDI and lyrics data using the detected synchronization; An amp pack unit 31 for decoding the restored video compressed data; A memory 32 for storing the restored one piece of MIDI and lyrics data; A sound source room (MIDI ROM) 40 in which sound source data corresponding to MIDI data is recorded; A sound source output unit 33 for receiving the MIDI data stored in the memory 32 and converting and outputting the sound source data recorded in the sound source ROM 40; An on-screen display (50) for converting and outputting lyrics data stored in the memory (32) into a video text signal; And a microcomputer (MICOM) 100 for reproducing the CD according to the data flow between the components and the requested function.

In the video CD half-cycle configured as described above, when the user selects a song list by key input, the micom 100 reads the playlist information of the MIDI CD already read and stored in the memory 32. After controlling the drive unit 13 to move the pickup unit 10 to the corresponding track, the pickup unit 10 transmits the lyrics and MIDI data of the song list selected from the lyrics and MIDI data information area on the MIDI CD. In this case, the detected high frequency signal is filtered by the R / F unit 12. The filtered clean signal is a synchronization signal detected by the servo unit 20, the digital signal processing unit 30 is housed from the filtered signal by the synchronization signal detected by the servo unit 20 And restore the MIDI data to be stored in the memory 32 under the control of the microcomputer 100.

Thereafter, when the user requests a playback, the microcomputer 100 controls the drive 13 to move the pickup unit 10 to the image information area on the MIDI device, in the same process as described above. The image data detected by the digital signal processor 30 and restored by the digital signal processor 30 is transmitted to the amp pack unit 31, and the image data transmitted to the amp pack unit 31 is decoded and decoded and output as a video signal. It starts to print.

Meanwhile, the MIDI data transmitted and stored by the microcomputer 100 to the memory 32 is input to the sound source output unit 33, and the sound source output unit 33 receives sound source data corresponding to the input MIDI data. In the room 40, the respective sound sources are output and accompaniment is performed. At the same time, the on-screen display 50 allows the microcomputer 100 to measure beats in the lyrics data stored in the memory 32. The lyrics inputted according to the output time) are converted into a video text signal and output the converted lyrics as a color signal of the text. The signal is synthesized with the video signal decoded and output by the impact unit 31. As a result, the progress of the lyrics is displayed in the background image.

By the above-described process, the user can sing the song for the selected song piece in accompaniment while watching the background image being randomly reproduced in the order and the row of pictures displayed on the background image.

However, in the song accompaniment method as described above, accompaniment of arbitrary songs can be performed by selecting and reserving a desired song title, but the background image reproduced from the CD is sequentially played from the initial position of the image data area, Since the playback position is controlled by the user's control of speed, skip, etc., if the user wants to sing in accompaniment on the background of the favorite video previously viewed, manually adjust the speed or skip the section. I had to search and look at the image as I did.

However, since it takes a long time until the background image is selected by the manual operation, it is impossible to convert the desired image to the background image while the accompaniment is being played and the multi-changer equipped with a plurality of discs ( In the case of a multi changer), such a search process must be performed for each disc, so switching to a desired background image is almost impossible. Even if such a search is possible during an accompaniment interruption, the operation is very troublesome and inconvenient.

Accordingly, the present invention has been made to solve the above problems, to provide a background image reservation playback method to select it as a reservation background image during the playback of the random background image, and to immediately play it as a background image upon subsequent user requests. The purpose is.

1 is a configuration diagram of a video CD half-cycle (CDP),

2 is a diagram illustrating a playback position at the time of the background image reservation key input and a playback position of the stored image data,

3 is a flowchart of a preferred embodiment of a background image reservation and playback method according to the present invention;

4 is a flowchart illustrating another preferred embodiment of the background image reservation and playback method according to the present invention.

5 shows a configuration format of a sub-Q channel recorded on a disc (video CD).

* Explanation of symbols for the main parts of the drawings

M: Motor 10: Pick-up part

12: R / F part 13: drive part

20: servo unit 30: digital signal processing unit

31: amp unit 32: memory

33: sound source output unit 40: sound source room (MIDI ROM)

50: On-screen indicator 100: MICOM

Background image reservation and playback method according to the present invention for achieving the above object, the first step of reproducing any list of video data on the disc with the performance of the music data; A second step of calculating a start position of a list which is being played when a background image reservation key is input; A third step of storing the calculated start position of the playlist; A fourth step of searching for the stored start position on a disc when a reserved background image selection key is input; And a fifth step of playing back image data from the searched playback position.

In addition, the background image reservation and playback method according to the present invention has another feature of storing the playback position before the predetermined time in the reverse direction of the progress from the current playback position instead of calculating and storing the start position of the playlist.

In the background image reservation and playback method according to the present invention as described above, when a user plays a background image reservation key with respect to the image data to be reproduced when playing the image data of the arbitrary list as the background image along with playing the music data on the disc. When the key is pressed, the starting position of the video list being played is calculated and stored. After setting the reservation of such a background image, when playing music data with an arbitrary background image at any point in time, if a user inputs a reservation background image selection key, the start position of the list of previously stored background images is searched in the previous step. The image data from the searched position is replaced with the background image.

In addition, in the background image reservation and playback method according to the present invention as described above, when the video list reproduced as the background image is longer than a predetermined time, the image of the start position is different from the image of the viewpoint selected by the user as the background image. At this time, the position of the song is retroactively calculated from the current position corresponding to the background time of one song from the current position, and the position is stored thereafter. The position of the stored background image is searched on the disk to play back image data from the searched position as the background image.

Hereinafter, a preferred embodiment of the background image reservation reproduction method according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a playback position when a background image reservation key is input and a reserved playback position stored at this time, and FIGS. 3 and 4 are flowcharts of a preferred embodiment of a background image reservation and playback method according to the present invention. Hereinafter, the background image reservation and playback method of FIGS. 3 and 4 according to the present invention will be described in detail with reference to the configuration of the video CD half-cycle of FIG.

In the background image reservation playback method according to the present invention, if a user first selects a song through a key input (S100), the microcomputer 100 moves the pickup unit 10 as described above for the tune selected. MIDI and lyrics data are detected, and the high frequency signal detected by the pickup section 10 passes through the R / F section 12, the servo section 20, and the digital signal processing section 30. Data is restored to be stored in the memory 32 (S101).

After reading and storing the music data in the memory 32, the microcomputer 100 moves the pickup unit 10 to the image information area on the disc, and then the image data in the amp unit 31 by the same process as described above. Is decoded to be decoded and output as a video signal, and the MIDI data of the stored music data transmitted to the memory 32 is transmitted to the sound source output unit 33, and the lyrics data is transmitted to the on-screen display 50. Thus, the accompaniment operation is performed simultaneously with the reproduction of the background image (S102).

As such, during the playback of the background screen along with the accompaniment (S102), when the user wants to reserve the currently playing video screen as the background video, and inputs a background video reservation selection key (S110), the microcomputer 100 enters a key. Playback absolute time (ta) information (refer to FIG. 2A) corresponding to the current video signal playback track at the time and playback relative time (Tr) information of the segmented video divided by the track number are detected from the current playback position of the disc. It is obtained from the sub-Q field data of FIG. 5, wherein FIG. 5 (a) is information indicating how many minutes, seconds, and frames the music is played, i.e., relative time information. (B) denotes an absolute time code on the disc, i.e., absolute time information of reproduction, so that the absolute absolute time ta information and the relative relative time Tr are reproduced from the sub cue field data of FIG. Information can be easily obtained.

When the absolute time ta information and the relative time Tr information are obtained as described above, the absolute time t n of the initial position of the currently played segmented video (the video corresponding to the track number) is calculated using this information. That is, the microcomputer 100 obtains the absolute time tn of the initial position of the segment image currently being reproduced by subtracting the reproduction relative time Tr from the obtained reproduction absolute time ta.

The microcomputer 100 stores and stores the calculated initial position information tn and the identification number of the disc currently being reproduced at the time of initial driving in the memory 32 (S112). The reason why the disc identification signal is stored together is to discriminate and recognize the background image reservation position when a plurality of discs are simultaneously seated on the disc drive unit, such as a multi changer.

Meanwhile, during the playback of the accompaniment and the background image as described above (S102), the microcomputer 100 continuously checks whether the reserved background image playback key is input from the user (S120), and input of the reserved background image playback key is performed. If it is confirmed, after confirming whether there is a background image reservation according to the above-described process, the presence or absence of the reserved position stored in the momero 32 is confirmed (S130), and the reserved background image stored in the memory 32 is checked. Reads the identification number and its position (tn) (S131), and when the multi-disk is mounted, the microcomputer 100 drives the drive unit 13 by the servo unit 20 to control the readout. The corresponding disc of the identified identification number is moved to the position of the pickup section 10 (S132), and then the pickup section 10 is moved to the read start position tn of the moved disk (S133). ).

During the position search of the reserved background image, accompaniment of the music data selected and read in the memory 32 continues without interruption, and when the pickup unit 10 reaches the reserved position tn, it is detected later. The video data is decoded and output through the R / F unit 12, the digital signal processor 30, and the amp pack unit 31 in the same manner as in the above-described conventional process, and thus the image data selected and stored during playback. A is immediately replaced with the background image currently being played and is played along with the currently playing music (S102).

In addition, Figure 4 is another embodiment of the background image reservation and playback method according to the present invention, the position set as the reserved position at the time of the background image reservation key input (S210) is different from the embodiment of FIG. .

In the embodiment of Fig. 4, even if the image selected and input as the current reservation background image is a continuous image for a long time instead of a divided image (video divided by track number), or even if the image is divided for a long time, the playback time of each divided image is long. In this case, it is applied when the initial position of the divided image is likely to be a different image from the image reproduced at the time of input by the user.

To this end, in the embodiment of FIG. 4, as shown in FIG. 2B, when the background image reservation key is input (ta) (S210), the reserved position to be stored in the memory 32 together with the identification number of the disc is reproduced. The calculated value (tb = ta-3 minutes) is subtracted from the absolute time ta at the present time point by a predetermined time (3 minutes) (S211), and the value is stored instead as a reserved position (S212). ).

The reason why the subtracted value is set to 3 minutes is based on the previous image of the viewpoint image selected by the user's background image selection judgment, and is also used as the background image of the accompaniment. Since the weight is given to the previous video and set to 3 minutes, the time to be subtracted is preferably about 2-5 minutes.

In addition, when selecting and storing the reserved background image of the video currently being played when the background image reservation key is input, the personality data (love, farewell, nature, ...) of the background image is received from the user through key input. If it is further stored in the memory 32 together with the disc identification number and the reserved position of the disk, and the reserved position of such a background image is stored separately every time the reserved background image key is input, the reservation by the user is made. Upon input of a background image selection key, the microcomputer 100 grasps the personality data of the currently playing music data, searches for the corresponding personality data of the reserved position previously stored in the memory 32, and matches the same. By moving the pickup unit 10 to a reserved position, the reservation background image can be selected and played according to the characteristics of the accompaniment song, so that the atmosphere can be more accompaniment. The.

Background image reservation and playback method according to the present invention made as described above, when playing the image data of the arbitrary list on the disc with the performance of the music data, the user selects and saves as the reserved background image in the desired video portion, at any time By enabling this to be quickly played as a background image, selection and playback of a background image according to the user's taste can be made more convenient and easy. It is an invention.

Claims (5)

A first step of reproducing an arbitrary list of image data on the disc with the performance of the music data; A second step of calculating a start position of a list being played upon key input, when the background image reservation key is input; A third step of storing the calculated start position of the playlist; A fourth step of searching for the stored start position on a disc when a reserved background image selection key is input; And And a fifth step of playing back image data from the searched playback position. The method of claim 1, The third step further stores identification data of the disc currently being played; The fourth step, When the reserved background image selection key is input, moving a corresponding disk of previously stored identification data to a position where a reading means is located; And And searching for a pre-stored start position on the moved disk. A first step of reproducing an arbitrary list of image data on the disc with the performance of the music data; A second step of calculating a corresponding position at the time of retrospecting a predetermined time from the position being played back when the background image reservation key is input to the playback reverse direction; A third step of storing the calculated playback position; A fourth step of searching for the stored playback position on a disc when a reserved background image selection key is pressed; And And a fifth step of playing back image data from the searched playback position. The method of claim 3, wherein The third step further stores identification data of the disc currently being played; The fourth step, When the reserved background image selection key is input, moving a corresponding disk of previously stored identification data to a position where a reading means is located; And And searching for a previously stored playback position on the moved disk. The method of claim 3, wherein And the predetermined time is 2 to 4 minutes.

Images