JPH07212715A - Video image reproducing device - Google Patents

Abstract

PURPOSE:To integrate character information and a back ground obtained from different information sources by combining a video image reproduced from an external video signal with character information extracted from a video signal read from an information recording medium. CONSTITUTION:When video signal for KARAOKE (orchestral accompaniment) including a song is inputted to an input terminal 11, a slicer 13 extracts character information and is outputted to a mixer circuit 19 via an amplifier 14. On the other hand, synchronizing separator circuit 15, 16 separate a video signal for KARAOKE and a synchronizing signal for an external video signal respectively. A comparator 17 detects a phase difference between the separated synchronizing signals, provides a delay to the external video signal to control a delay circuit 18 thereby establishing the synchronization between both the video signals. Thus, the external video signal whose synchronization is established from the delay circuit 18 is outputted to the mixer circuit 19 and a signal representing the character information is mixed with the external video signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video reproducing apparatus suitable for use in a karaoke apparatus or the like.

[0002]

2. Description of the Related Art In recent years, a karaoke device using a laser disk has begun to spread in homes and the like. A karaoke device using this laser disc superimposes the melody and lyrics of the song on the background image and records it on the laser disc.
This is a video playback device in which the lyrics of a song are displayed on a monitor together with the background image along with the melody, and you can enjoy karaoke while watching this. In this case, the lyrics of the song are displayed on the monitor together with the background image, and the music information recorded on the laser disk is also reproduced and output from the speaker.

[0003]

A conventional video reproducing apparatus,
For example, when a karaoke device is used as a video playback device, the video playback device is configured as described above. Therefore, when playing the lyrics of the same song from a laser disk and enjoying karaoke, character information such as lyrics and the background image are integrated. However, since the background image of the lyrics is always the same image and does not change, the freshness of the lyrics decreases as the number of times of use increases.

The present invention has been made in order to solve the above problems, and character information and a video image as a background of the character information can be obtained from different information sources.
It is an object of the present invention to provide a video reproducing device that can generate an integrated video by combining them.

[0005]

A video reproducing apparatus according to the present invention is a video reproducing apparatus for reading and reproducing the video information from an information recording medium on which video information is recorded and outputting the reproduced video to a monitor device, An external signal input terminal for inputting an external video signal that is an externally generated video signal,
Character information extracting means for extracting a signal representing character information from the image information read from the information recording medium, a signal representing the character information extracted by the character information extracting section, and an external image input from the external input terminal. It is provided with a synchronizing means for synchronizing both signals, and a mixer circuit for mixing the signal representing the character information synchronized by the synchronizing means with the external video signal, and is obtained by mixing with the mixer circuit. A video signal is output to the monitor device, and the video of the signal representing the extracted character information is superimposed on the video of the external video signal to be visualized.

[0006]

The video reproducing device according to the present invention is a monitor device that combines a video reproduced from an external video signal and a video of character information extracted from video information read from an information recording medium into a monitor device as an integrated video. Output. As a result, an integrated image is generated which is composed of images of character information obtained from different information sources and a background image of the image of the character information.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a video reproducing apparatus of this embodiment used as a karaoke apparatus. In the figure, 1 is a television tuner for selecting a color television signal of a specific channel being broadcast, 2 is a video camera for outputting a video image captured by an optical system (not shown) as a video signal, and 3 is a karaoke device. The main body 3a of the image reproducing device is an external input terminal of the image reproducing device 3 to which the detected image signal of the color television signal selected by the television tuner 1 or the image signal output from the video camera 2 is supplied. An information recording medium 3b is a laser disk in the present embodiment. This laser disk 3b is widely used for karaoke, in which the lyrics of a plurality of songs, a background image when the lyrics are projected on the monitor device 4 as text information, and music information such as the melody of the plurality of songs are recorded. It is a well-known optical disc.

Reference numeral 3c is a laser disk drive device for reading out a video of character information such as lyrics of a music recorded on the laser disk 3a, the background video, and music information such as a melody of the music. Reference numeral 3d denotes a demodulation unit for demodulating a video signal or the like to be output as an image on the monitor device 4 from character information such as lyrics of a song read by the laser disk drive device 3c and output and background image information thereof. It is a character information extraction unit that extracts a signal representing character information in the video signal output from the demodulation unit 3d. 3f synchronizes a signal representing the character information extracted by the character information extraction unit 3e with a color television signal input from the external input terminal 3a or a signal output from the video camera 2, and further mixes the signals. It is a superimpose processing unit that outputs a unified image. 3g is a changeover switch for selecting either the output of the demodulation unit 3d or the signal output from the superimpose processing unit 3f. Reference numeral 3j is an audio signal demodulation unit that demodulates music information such as a melody of a song read from the laser disc 3b into an audio signal, and 3k is an audio signal demodulated by the audio signal demodulation unit 3j and a voice signal input from the microphone 6. An audio mixing circuit 3m for mixing and is an amplifier circuit for amplifying the output of the audio mixing circuit 3k. 3p is a speaker output terminal for supplying the output of the amplifier circuit 3m to the speaker 5,
3q is a connection terminal of the microphone 6.

FIG. 2 is a block diagram showing the configuration of the character information extracting section 3e and the superimposing processing section 3f. In the figure, 11 is an input terminal for a video signal representing a karaoke video read from the laser disk 3b and demodulated by the demodulation section 3d, and 13 has a slice level SL shown in FIG. It is a slicer for extracting signal portions C1, C2, C3, C4 indicating character information in a video signal representing a karaoke video input from a terminal 11. Reference numeral 14 is an amplifier for amplifying the signal indicating the character information extracted by the swisser 13, and 15 is a separation signal for synchronizing signals such as horizontal synchronizing signals H1 and H2 of the video signal representing the karaoke video shown in FIG. First SYNC to do
A separation circuit 16 is a second SYN for separating a horizontal synchronization signal and the like in the video signal input from the external input terminal 3a.
It is a C separation circuit.

Reference numeral 17 is a comparison circuit for detecting a phase shift between the synchronization signal separated by the first SYNC separation circuit 15 and the synchronization signal separated by the second SYNC separation circuit 16. The comparison circuit 17 outputs a delay time control signal according to the detected phase difference between the sync signals. Reference numeral 18 gives a delay time to the video signal input from the external input terminal 3a by the delay time control signal, and the video signal representing the karaoke video input from the input terminal 11 is selected by the TV tuner 1. It is a delay circuit for establishing synchronization between the detected video signal of the color television signal or the video signal output from the video camera 2.
Reference numeral 19 is a mixer circuit for mixing and processing the video signal of the signal input from the external input terminal 3a in which the synchronization is established and the video signal representing the character information in the extracted video for karaoke. Reference numeral 20 is an output terminal for outputting a mixed video signal.

Next, the operation will be described. The changeover switch 3g is switched to the superimpose processing unit 3f side as shown in FIG. Also, the external input terminal 3
In a, either the color television signal of the channel selected by the television tuner 1 or the video signal output from the video camera 2 is input. In this case, the video signal output from the video camera 2 is input. There is.

When the video reproducing device 3 is operated by turning on a power switch (not shown), the laser disk drive device 3c reads the karaoke video and music information recorded on the laser disk 3b, and the karaoke data is read. Is output to the demodulation unit 3d and demodulated into a karaoke video signal and the like. The demodulated karaoke video signal and the like are input from the input terminal 11 to the character information extraction unit 3
e and the superimpose processing unit 3f.

The video signal for karaoke includes signals C1, C2, C3 and C4 of character information indicating lyrics. As shown in (a) of FIG. 3, since the image is displayed brighter on the monitor screen than the background image, the slicer 13 shown in FIG. 2 uses the slice level SL to output the character information signals C1, C2, C3, C4. Is extracted, further amplified by the amplifier 14, and output to the mixer circuit 19. The waveform shown in (b) of FIG. 3 is a signal waveform showing the character information extracted by the slicer 13, and is a mixer circuit 19 as a video signal showing the character information together with the horizontal synchronizing signal and the like.
Is output to.

On the other hand, the first SYNC separation circuit 15 separates the horizontal synchronizing signal of the video signal for karaoke shown in FIG. Further, in the second SYNC separation circuit 16, horizontal sync signals OH1 and OH2 of the external video signal (video signal output from the video camera 2) shown in FIG.
Separate the sync signal such as. Further, the comparison circuit 17 detects a phase difference between the synchronization signal separated by the first SYNC separation circuit 15 and the synchronization signal separated by the second SYNC separation circuit 16, and the external input terminal 3a is detected according to the detected phase difference. A delay time is added to the external video signal input from the external input terminal 3a so that synchronization is established between the karaoke video signal and the external video signal input from the external input terminal 3a.

The external video signal which has been synchronized with the video signal for karaoke in the delay circuit 18 is the mixer circuit 1
9 and is mixed with the signals C1, C2, C3 and C4 indicating the character information extracted from the karaoke video signal. FIG. 3D shows a video signal in which a signal indicating character information for karaoke is mixed with the external video signal in this manner.

On the other hand, the music information for karaoke recorded on the laser disk 3b by the laser disk drive device 3c, that is, the melody of the song is output to the audio signal demodulation section 3j, and the audio signal from the microphone 6 is output by the audio mixing circuit 3k. The signals are mixed, amplified by the amplifier circuit 3m, and output from the speaker 5.

As described above, according to this embodiment, it is possible to generate a new karaoke video by extracting a signal indicating character information from the karaoke video signal and superimposing it on the external video signal. Become.

[0018]

As described above, according to the present invention, it is possible to generate a new image by superimposing the image signal indicating the character information obtained from different information sources and the image signal serving as the background image. .

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a video reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a character information extraction unit and a superimpose processing unit in the video reproduction device according to the embodiment of the present invention.

FIG. 3 is a waveform diagram showing a video signal for karaoke, an external video signal, and the like in the video reproducing apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 3 Video Reproducing Device 3a External Signal Input Terminal 3b Laser Disc 3e Character Information Extraction Section (Character Information Extraction Means) 4 Monitor Device 15 First SYNC Separation Circuit 16 First SYNC Separation Circuit 17 Comparison Circuit (Synchronization Means) 19 Mixer Circuit

Claims (1)

[Claims] 1. A video reproducing apparatus which reads out the video information from an information recording medium on which the video information is recorded and reproduces the reproduced video and outputs the reproduced video to a monitor device. An external signal input terminal for inputting, character information extracting means for extracting a signal representing character information from video information read from the information recording medium, a signal representing character information extracted by the character information extracting section, and the external device. The external video signal input from the input terminal is provided with a synchronizing means for synchronizing both the external video signal and a mixer circuit for mixing the external video signal with the signal representing the character information synchronized by the synchronizing means. The video signal obtained by mixing by the mixer circuit is output to the monitor device, and the video of the signal representing the extracted character information is displayed by the external video signal. A video playback device characterized by being superimposed on an image to be visualized.