KR19980079000A - How to repeat the section of video compact disc player - Google Patents

Abstract

The present invention relates to a section repeat play method of a video CD player for setting a desired section and the number of repeat plays in a video CD player. When a repeat section setting signal for section repeat play is input during normal play of a disc, And a first step of displaying a menu screen for setting the repetition section, whether the start position P1 and the end position P2 and the number of repetitions C1 of the repetition section are output and whether the mantissa sound read out from the disc is output. In a second step of receiving and storing the repetition section setting information including the received repetition section setting information, if the reproduction signal for the set repetition section is input, read the stored repetition section setting information and output the mantissa sound based on the read information; In a third step of checking, the disc is moved at the start of the repeating section P1 based on the read setting information. In the fourth step of counting up the number of times of playing C2, and when the playing position of the disk reaches the end position P2 of the set repeating section during the playing of the disk, After the fifth step of comparing the counted number of times of reproduction (C2) and the set number of repeated playbacks (C1), the comparison result of the fifth step, the counted number of times of playback (C2) and the set number of repeated playbacks (C1) If is matched, the repeating section playback process is terminated and the disc is played normally. If not, the sixth step of repeating the process after the fourth step is repeated.

Description

How to repeat the section of video compact disc player

The present invention relates to a video CD player, and more particularly, to a method for repeating a section of a video CD player suitable for automatically playing a section desired by a user, that is, a predetermined repeat section in a video CD player.

With the development of audio and video media, optical disc players have been developed for recording and reproducing video and audio data on semi-permanent optical discs.

Such an optical disc player reproduces an image and / or audio recorded on an optical disc and outputs it through a screen and / or a speaker, and has a higher signal-to-noise ratio than conventional image and / or audio reproducing apparatus, resulting in better image quality and / or Or it can reproduce signals with sound quality, generate no noise due to irregular reproduction and modulation, very low distortion, no ghost, random access, etc. There is a trend.

In addition, such an optical disk player includes a compact disk player (CDP), a laser disk player (LDP), a compact disk graphic player (CDGP), and a video compact disk player (VCDP: video compact disk player) has been developed and widely used, and recently, a digital video disk (DVD) using MPEG-2 moving picture compression technology and a digital video disk player for playing the same have been developed. It is possible to record and play giga byte (GB) data including moving images in a 12cm optical disc such as a CD, and to make it possible to play current CDs and VCDs.

On the other hand, among these optical disc players, the video compact disc player has a built-in song accompaniment function, which displays on the screen audio signals and images played from a karaoke disc containing accompaniment data and song lyrics for a predetermined song. According to the function that allows the user to sing along with the song, it is now widely used.

However, in such an optical disc player, when playing a karaoke disc or a music disc containing accompaniment sound and a singer's voice, the accompaniment sound and the singer's voice are played together, so that the user learns and masters the song according to the accompaniment sound being played. There was discomfort.

Accordingly, the present invention devised in view of the above point, the user can set the desired section to repeat the desired number of times, the section repeat playback of a video compact disc that can mute the audio signal output during repeat playback Provide a method.

In order to achieve the above object, the present invention provides a first step of displaying a menu screen for setting the repetition interval when the repetition interval setting signal for interval repetition reproduction is input during the normal reproduction of the disc. In the second step of receiving and storing the repetition section setting information including the start position (P1) and end position (P2) and the number of repetitions (C1) and whether the mantissa sound read out from the disk is output, A third step of reading the stored repetition section setting information and checking whether or not the mantissa sound is output based on the read information, when the reproducing signal is inputted; A fourth step of reproducing the disc at P1) and up counting the number of times of reproduction C2; reproducing the disc during the reproducing of the disc; When the value reaches the end position P2 of the set repetition period, the fifth step of pausing the disc reproducing operation and comparing the counted replay number C2 with the set repetition number C1, As a result of the comparison of step 5, when the counted number of times of reproduction C2 and the set number of repeated reproductions C1 coincide, the reproducing period is terminated, and the disc is normally reproduced. A method of repeating and playing a section of a video compact disc player, the method including a sixth step of repeatedly performing the following process.

1 is a block diagram of a video CD player suitable for performing a method of repeating section playback according to the present invention;

2 is a diagram illustrating a menu screen for setting a repetition interval according to an exemplary embodiment of the present invention;

3 is a flowchart illustrating a process of repeating a section of a video CD player according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

10 deck portion 20 optical pickup portion

30: digital signal processor 40: microcomputer

50: key input unit 60: MPEG decoder

70 memory unit 80 audio signal processing unit

85: frequency filter 90: video signal processing unit

100: OSD unit

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.

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

1 is a block diagram of a video CD player suitable for carrying out the present invention, which includes a deck unit 10, an optical pickup unit 20, a digital signal processor 30, a microcomputer 40, a key input unit 50, An MPEG decoder 60, a memory unit 70, an audio signal processor 80, a frequency filter 85, a video signal processor 90, and an OSD unit 100 are included.

The optical pickup unit 20 chucks the music disc mounted on the deck unit 10 based on a control signal for the optical pickup generated from the microcomputer 40, and performs optical pickup from the chucked disc. The RF signal is read, with the table's table of content (TOC) information also read.

The read RF signal is provided to the digital signal processor 30, and the digital signal processor 30 outputs the RF signal to the MPEG decoder 70 after digital signal processing, error detection, and correction.

The MPEG decoder 60 decodes an error corrected digital video signal provided from the digital signal processor 30 to the video signal processor 90 after decoding the received video signal based on the MPEG compression format, and provides the digital signal processor 30 from the digital signal processor 30. The audio signal is selectively provided to the audio signal processor 80 and the frequency filter 85 through the lines L61 and L62 based on the selection control signal of the microcomputer 40.

In addition, the frequency 85 cuts a specific frequency, that is, a frequency corresponding to voice data of a mantissa, from the audio signal provided from the MPEG decoder 60, and provides only the accompaniment sound to the audio signal processor 80.

If the user inputs the section setting start key signal through the key input unit 50 to repeat the desired number of times by setting the desired section while the music disc is playing in the video CD player configured as described above, the microcomputer 40 ) Generates an OSD driving signal to the OSD unit 100 to display a menu screen for setting the repetition interval as shown in FIG. 2.

When the user inputs the start point of the section to be repeatedly played through the key input unit 50, the microcomputer 40 stores the disk address corresponding to the start point setting point from the TOC information read from the optical pickup unit 20. Stored in the unit 70.

Subsequently, when the repeating section endpoint is input from the user again, the microcomputer receives the disk address corresponding to the position where the repeating section endpoint occurs from the TOC information read from the optical pickup unit 20 and the number of repetitions for the set section from the user. This is stored in the memory unit 70.

Then, as shown in FIG. 2, the user is asked whether the audio output is muted. If the user sets muting of the audio output, the output of the audio signal is cut off while the repetition section is played, so that only the video screen is displayed. Displayed on a monitor (not shown).

As described above, when the section reproduction signal for reproducing the section set by the user is input through the key input unit 50 while the repetition section setting information input by the user is stored in the memory unit 70, the microcomputer 40 Reads the address of the starting point of the repeating section from the information on the repeating section stored in the memory section 70 to generate a control signal corresponding to the optical pickup section 20.

Therefore, the optical pickup unit 20 reads the disk from the track position of the disk corresponding to the control signal generated from the microcomputer 40. At this time, when the mute of the audio output is set by the user, the microcomputer 40 is MPEG. A control signal is generated at the decoder 60 to block the line L61 and to provide the decoded data to the frequency filter 85 through the line L62.

The frequency filter 85 separates the frequency of the audio signal provided from the MPEG decoder 60 and cuts a specific frequency, that is, a frequency band in which a mantissa's voice is carried, so that only the accompaniment sound is provided to the audio signal processor 80. do.

Therefore, only the accompaniment sound from which the singer's voice is deleted is output to the audio signal processor 80 while the reproduction of the set section is performed, and the monitor (not shown) is displayed on the screen by the video signal processor 90.

As described above, when the current optical pickup position provided from the optical pickup unit 20 during the reproduction of the repeating section corresponds to the end position set by the user, the microcomputer 20 detects this and the optical pickup unit 20 By generating a control signal, the repeat section playback operation is stopped.

Then, the microcomputer 40 reads the repetition number from the repetition section setting information stored in the memory unit 70 and performs the replay for the repetition section through the same process as described above by the set repetition number.

3 is a flowchart illustrating a process of repeating a section of a video CD player according to a preferred embodiment of the present invention. Referring to the drawings, the section repeating process according to the present invention will be described in detail as follows.

When the music disc is mounted on the deck unit 10 and is reproduced (step 99), when a repetition section setting key signal is input from the user (step 101), the microcomputer 40 generates a drive signal to the OSD unit 100 and repeats it. The menu screen for the section setting is displayed (step 102).

Then, the user inputs the start point P1 of the repetition section through the key input unit 50 with reference to the menu screen displayed on the monitor (not shown) (step 103), in which the microcomputer 40 presets a predetermined time. During the preset period, if there is no input of the repetition section start point P1 (step 104), the menu screen is turned off (step 105), and the disc is played normally. .

When the repetition section start point P1 is input in the above-described step 103, the microcomputer 40 stores the data in the memory unit 70 (step 106) and continues to perform the reproducing operation (step 107). When the repeating section endpoint P2 is input (step 108), it is similarly stored in the memory unit 70 (step 109).

In addition, the user receives a repetition number of times C1 for the section set by the user (step 110) and stores the memory in the memory unit 70 (step 111), and then the user determines whether to block the mantissa sound recorded on the disk. Provided (step 112) and stores information on whether the mantissa sound cut off (step 113).

On the other hand, the above-mentioned repetition section start position P1 and end position P2 are based on the TOC information read out from the optical pickup section 20 and provided with the position information of the disc track where the section start signal and the end signal are generated. It is provided to the microcomputer 40 in the form of an address and then stored in the memory unit 70.

After storing all the information about the repeated disc playback from the user through the above-mentioned step 113 in the memory unit 70, the microcomputer 40 performs normal playback of the disc (step 114), and the user during the disc playback. When a key signal for performing repetitive reproduction of the set section is input (step 115), the microcomputer 40 reads information on the repeating section stored in the memory unit 70 (step 116) and the start position of the repeating section. The audio signal is output.

At this time, if the read information has the mantissa blocking setting (step 117), the microcomputer 40 generates a control signal to the MPEG decoder 60 to block the line L61 (step 118), and then the optical pickup unit The optical pickup control signal is generated at 20 to play the disc from the start point of the repeat section P1 (step 119), and the microcomputer 40 starts the count C2 for the number of times of the repeated play (step 120). ).

On the other hand, the audio signal reproduced at this time is provided to the audio signal processor 80 after only the accompaniment sound in which the signal for the mantissa is deleted after being jetted to the frequency filter 85 is output through the speaker.

Then, if the playback position of the disc reaches the end position P2 set by the user while the disc is being played back through the above-described step 120 (step 121), the microcomputer 40 receives the optical pickup unit 20. ) Is paused (step 122), and the repetition number C1 set in the memory unit 70 is compared with the counted reproduction number C2 (step 123).

Therefore, according to the comparison result in step 123 described above, the user performs the operation from step 119 described above by the number of times (C1) set by the user, repeats playback for the set section, and then sets the user set repetition. When the number of times of reproduction C1 and the number of times of repeating counting C2 coincide, the overall operation for the repeated reproduction is terminated, and the disc is normally reproduced (step 124).

As described above, according to the present invention, while the music CD is mounted and played in the video CD player, the user can repeatedly play the music by setting the desired section and the desired number of times. It can be effective to meet the various needs of the user.

Claims (2)

A repetitive reproduction method of an optical disc player, in which a predetermined section of data recorded on an optical disc is set and playback is repeatedly performed a desired number of times. A first step of displaying a menu screen for setting the repetition interval when a repetition interval setting signal for interval repetition reproduction is input during the normal reproduction of the disc; A second step of receiving and storing repetition section setting information including a start position (P1), an end position (P2), a repetition number (C1) of the repetition section, and whether or not a mantissa sound is read from the disc; A third step of reading the stored repetition section setting information and checking whether the mantissa sound is output based on the read information when a reproduction signal for the set repetition section is input; A fourth step of playing the disc at a repeating section start position P1 based on the read setting information, and counting up the number of times of playing C2; If the play position of the disc reaches the end position P2 of the set repeating section while playing the disc, the disc play operation is paused and the counted play count C2 and the set repeat play count ( A fifth step of comparing C1); As a result of the comparison in the fifth step, when the counted number of times of reproduction C2 and the set number of repeated times of play C1 coincide, the repeating interval reproducing process is terminated and the disc is normally reproduced. And a sixth step of repeating the process after the four steps. The method of claim 1, wherein the fourth step, And if the output cutoff setting for the mantissa sound is made from the read setting information, only the accompaniment sound from which the mantissa sound has been deleted is reproduced from the reproduced audio signal.