JP3322811B2 - Optical disk drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device, and more particularly, to an optical disk device having a karaoke function.

[0002]

2. Description of the Related Art Conventionally, in order to execute a karaoke function using an optical disk apparatus, environmental video data as a background,
A karaoke disk on which music data, lyrics data, etc. are recorded is reproduced.

[0003]

As described above, the karaoke function is conventionally performed by playing back a karaoke disk. However, a normal karaoke disk is defined by one environmental image corresponding to one music. Only the displayed background is displayed, and it is not possible to enjoy karaoke with another background in the same song. In addition, since environmental video data, music data, lyrics data, and the like are recorded in a non-rerecordable state in advance, that is, the karaoke disk is a read-only disk, so the data used in karaoke is fixed, A video according to the user's preference, for example, a scene in which the user is singing or the like is recorded, and the scene cannot be reproduced at the time of performing karaoke, which has a problem in function.

It is an object of the present invention to provide an optical disk device having a substantial function of changing the background and recording and reproducing a scene sung by a user.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an optical disk apparatus according to the present invention comprises a karaoke apparatus for reproducing.
Audio data is read from the optical disk and stored in RAM.
Karaoke audio data stored in RAM
Karaoke audio data to be played at the same time
Video data different from the predetermined video data
Data from the optical disk and play it on the video playback means.
Optical disk device.

Here, the optical disk is a rewritable medium.
It has a RAM part, which is a memory part.
At least one of the video and audio data
Write to RAM part of optical disk.

[0007]

FIG. 1 is a block diagram showing a basic configuration of an embodiment of an optical disk apparatus according to the present invention.

In this embodiment, a readable / writable DVD (digital video disk) having the following structure and function is used as an optical disk. Such a readable / writable disc is called a hybrid DVD, and has a read-only memory area (ROM section) and a rewritable memory area (R
AM section). In the ROM section of the DVD, data of one-to-one correspondence, such as music and lyrics, of ordinary karaoke information is stored as a set, and environmental video data as a background is stored. In the RAM section, for example, Voices and images when the user is singing are recorded, and these recorded data are combined and reproduced to obtain various modes of karaoke functions.

In FIG. 1, a reproduced signal read from a hybrid DVD disk 1 rotated by a motor at a constant linear velocity (CLV) via a pickup (not shown) is amplified by an amplifier 4 and demodulated. (decoder)
5 is sent. The demodulator 5 performs an error (error) correction process on the received reproduction signal, generates correction data for the servo (focus error data and tracking error data), and executes a signal reorganization process.

The servo controller 3 receives a reproduction signal from the amplifier 4 and a correction data signal from the demodulator 5 and performs focus servo and tracking servo control for the pickup, and servo control for keeping the rotation speed of the optical disk at a constant linear speed. I do. The motor driver 2 supplies a signal for controlling the rotation of the disk 1 to the rotation motor under the control of the servo control unit 3.

CPU (system control computer) 11
Controls the operation of the entire apparatus according to a system control program stored in the ROM 9 and exchanges data via the system control bus 8. RAM 10
It is used for temporary storage of control data of the CPU 11, temporary storage of video data and audio data described later, and the like.

A reproduction signal, which is a mixed signal of a video-based compressed signal and an audio-based compressed signal demodulated by the demodulator 5, is distributed by a system decoder 14, and the video-based signal is sent to the video decoder 12, and the audio-based signal is sent to the audio decoder. The character information recorded in the sub-picture area provided for the subtitle display and the like in the decoder 16 and read out is sent to the character decoder 15.

The video decoder 12 reproduces a video signal by expanding the compressed video data. The reproduced video signal is converted from a digital video signal into an NTSC signal format signal by the NTSC encoder 13 and the video output is output. can get.

The audio decoder 16 expands the compressed audio data to obtain digital audio data, and the digital audio data is converted into an analog audio signal by the D / A converter 17. .

The character decoder 15 demodulates and reproduces the character information recorded and reproduced in the sub-picture area.
It is output as a video signal via the C encoder 13.

The video / audio capture unit 18 has a video camera and a microphone, captures an image of a subject and captures audio, converts these signals into digital data, and captures the converted data into the system. The video data and audio data thus captured are subjected to predetermined modulation by a modulator (encoder) 7, amplified by an amplifier 6, and written to the predetermined RAM area of the DVD (disc) 1 via a pickup. .

As described above, in the ROM section of the DVD, data of one-to-one correspondence, such as music and lyrics, out of ordinary karaoke information is stored as a set, and environmental video data as a background is stored. In addition, a voice and a video when the user is singing are recorded in the RAM section, and the recorded karaoke function can be enjoyed by reproducing the recorded data in combination.

For example, video data, music data and lyric data are separately recorded in different data areas of the hybrid DVD, and at the time of reproduction, desired data is read from the data to obtain the background of an appropriate combination. You can get music and lyrics. For example, the background video uses the video of another song stored in the ROM section,
Music and lyrics can be reproduced by reading data stored in the RAM unit.

In this case, the music data and the lyrics data are first read from the RAM of the DVD, and written and stored in the RAM 10 in the apparatus. Next, the video data is read from the ROM unit, and at the same time, the music data and the lyrics data stored in the RAM 10 in the apparatus are called and reproduced.

A new image stored in the RAM portion of the hybrid DVD (e.g., an image created by a user using a home VTR camera or an image created by a personal computer) is reproduced as an environmental background and is stored in another area. Karaoke can be enjoyed in combination with sound and lyrics data.

FIG. 2 is a flowchart showing an operation processing procedure according to the embodiment of the present invention. First, it is determined whether or not the karaoke function is currently being executed (S1). If the karaoke function is not being executed, the process is terminated. If the karaoke function is being executed, whether or not the current state is to be recorded is determined (recording instruction). Is determined (S2). If there is no recording instruction, the process is terminated. If there is a recording instruction, the current subject (video data or audio data) is captured using a video camera or microphone (S3). The data thus captured is encoded (compressed) and written to the RAM of the DVD (S4), and it is determined whether or not the recording is completed (S5). If the recording has not been completed, the process returns to S3.

In the above embodiment, quick support is possible by writing new music (communication data, karaoke disk, etc.) to the RAM of the DVD as needed. At this time,
If only the sound and lyrics data are written, the background image can be the image in the original ROM section. If sound and lyrics information and new video are written in the RAM section, that is, if the user writes video information or the like recorded on a home VTR, karaoke performances unique to the user become possible, and satisfaction is increased.

In the above embodiment, the RAM unit and the ROM
And a combination of data between the RAM unit and the ROM unit has been described.
A combination between data in the OM section is also possible.

In this case, the reproduced music data and lyrics data are first stored in the RAM 10. Next, the background video is read from an area different from the music data, and at the same time, the music data and the lyrics data stored in the RAM 10 are called, output to the system decoder, decoded and output. By doing so, it is possible to enjoy music data, lyrics data, and background video data of songs in different areas. The RAM 10 can store music data and lyric data for one song.

[0025]

As described above, according to the optical disk apparatus of the present invention, it is possible to select any combination of background video, music, and lyrics stored in the optical disk during karaoke performance, thereby greatly improving the usability. Not only is it possible to use a single disk efficiently.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of an embodiment of an optical disk device according to the present invention.

FIG. 2 is a flowchart showing an operation processing procedure according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 hybrid DVD disc 2 motor driver 3 servo controller 4, 6 amplifier 5 demodulator (decoder) 7 modulator (encoder) 8 system control bus 9 ROM 10 RAM 11 CPU (system control computer) 12 video decoder 13 NTSC encoder 14 System decoder 15 Character decoder 16 Audio decoder 17 D / A converter 18 Video / audio capture unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G10K 15/04 302 G11B 20/00 G11B 21/10

Claims (2)

(57) [Claims] An karaoke audio data to be reproduced is recorded on an optical disk.
Read from the RAM and store it in the RAM.
At the same time as playing the orchestral sound data on the sound reproducing means,
Predefined for karaoke audio data to be played
Read video data different from video data from the optical disc
An optical disc device characterized in that it is reproduced by a video reproducing means . (2)An optical disk is a rewritable memory
Has a certain RAM section, During playback, video and audio data imported from outside
Write at least one of them to the RAM part of the optical disk
2. The optical disk device according to claim 1, wherein: .