JPH11259080A - Network karaoke system, karaoke terminal equipment and karaoke center station device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a network KARAOKE (orchestration without lyrics) system capable of supplying individual video images to respective KARAOKE terminal equipments by a KARAOKE center station. SOLUTION: Packet data for requesting individual information are transmitted from a terminal 200 to the center station 100 and data for displaying the individual information are supplied from an individual information CD-ROM 109 to an individual information superimposing part 110. Also, when a music piece number is transmitted to the center station 100, music piece data corresponding to the music piece number are transmitted to the terminal 200. The terminal 200 transmits the music piece number included in the music piece data to the center station 100 prior to the playing start of the received music piece data. The center station 100 retrieves the music piece data corresponding to the received music piece number, selects video signals reproduced in which background video reproducing equipment 107 are to be transmitted to the terminal 200 from background specifying data in the music piece data, superimposes individual information video images, modulates them to the video signals of a frequency intrinsic to the terminal 200 and transmits them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke center station for supplying music data and video signals to a plurality of karaoke terminals and a karaoke network system in which a plurality of karaoke terminals are connected via a network line. The present invention relates to a network karaoke system, a karaoke terminal device, and a karaoke center station device in which a station supplies a background video unique to each karaoke terminal.

[0002]

2. Description of the Related Art In a so-called karaoke box in which a karaoke terminal device is installed and used in each room, a system for centrally managing the supply of music and video in a center station is used. In such a usage form, the center station and a plurality of karaoke terminal devices are connected on a network, and each karaoke terminal device is operated as needed in order to save installation space for a medium for storing music and video data. A technique of receiving supply from a center station is used.

When a center station supplies music or video to each karaoke terminal device, transmission of packet data is suitable for music, but this transmission method is not suitable for video. In general, in order to supply video, a technique of modulating video data to a certain carrier frequency as a video signal and transmitting the video signal is used. For example, JP-A-7
Japanese Patent Application Laid-Open No. 064579 discloses a technique using a plurality of carrier frequencies to transmit a plurality of videos. Here, one type of video signal is transmitted using one carrier frequency, and each carrier frequency is used as a channel. Then, by inserting the channel designation data into the music data, each karaoke terminal device can demodulate only the video signal of the designated channel for each music data transmitted from the center station. As a result, each karaoke terminal device is supplied with an image suitable for the song.

[0004]

However, as the karaoke market has matured, what the user desires as a background image has been diversified. For example, instead of just displaying a video that matches the image of the song,
In some cases, it is desired to display various information on a screen. In the related art, since a video signal is uniquely specified by a song, there is no freedom to display individual information for each karaoke terminal. It is also possible to receive data other than the background video as packet data and superimpose it on the video signal on the karaoke terminal side to individually display information for each terminal, but it takes a long time to receive individual information. And the need to superimpose individual information in addition to superimposing lyrics, causing a problem that the device configuration of the karaoke terminal becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a network karaoke system in which a karaoke center station can supply an individual video to each karaoke terminal device can be realized with a simple configuration. It is intended to be.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the invention according to claim 1 provides a karaoke center station device and a plurality of karaoke terminal devices for supplying music data and video signals to each karaoke terminal device. In a network karaoke system connected via a network line, the karaoke center station device includes a video signal generating means for generating a plurality of video signals, and a plurality of video signals generated by the video signal generating means. Video signal selecting means for selecting a video signal to be transmitted for each of the karaoke terminal devices, and video signal conversion for converting the video signal selected by the video signal selecting device into a video signal unique to each of the karaoke terminal devices. And video signal transmitting means for transmitting the video signal converted by the converting means. The terminal device includes a video signal receiving unit that receives only a video signal preset for the karaoke terminal device from the video signals transmitted by the video signal transmitting unit. .

According to a second aspect of the present invention, in the network karaoke system according to the first aspect, the video signal converting means sets a video signal selected by the video signal selecting means for each of the karaoke terminals. Modulated to a unique carrier frequency, the video signal receiving means,
Receiving only a video signal of a specific carrier frequency preset in the karaoke terminal device is demodulated.

According to a third aspect of the present invention, in the network karaoke system according to the first or second aspect, each of the karaoke terminal devices is provided separately from the karaoke center station device with respect to the karaoke terminal device. Further comprising individual information requesting means for requesting transmission of a video containing information, wherein the video signal converting means converts the video signal selected by the video signal selecting means based on the request in the individual information requesting means. The karaoke terminal device converts the video signal into a video signal including individual information.

According to a fourth aspect of the present invention, in the network karaoke system according to any one of the first to third aspects, each of the karaoke terminal devices performs with respect to the karaoke center station device. The karaoke center station apparatus further includes a storage unit storing a correspondence between the tune data and the plurality of types of video signals, wherein the karaoke center station apparatus further includes a storage unit storing a correspondence between the tune data and the plurality of types of video signals. The signal selection means selects a video signal to be transmitted for each of the karaoke terminals based on the information notified by the music data notification means and the information stored in the storage means.

According to a fifth aspect of the present invention, there is provided a karaoke terminal device connected via a network to a karaoke center station device for supplying music data and video signals.
A video signal receiving means for receiving only a video signal set in advance for the karaoke terminal device from the video signals transmitted from the karaoke center station device is provided.

According to a sixth aspect of the present invention, in the karaoke terminal device according to the fifth aspect, the karaoke center station device is requested to transmit an image including individual information to the karaoke terminal device. The apparatus further comprises individual information requesting means, wherein the video signal receiving means receives the video signal containing individual information requested by the individual information requesting means.

According to a seventh aspect of the present invention, in the karaoke terminal device according to the fifth or sixth aspect, the karaoke center station device is notified of information specifying music data played by the karaoke terminal device. Music data notifying means, wherein the video signal receiving means receives a video signal corresponding to the music data notified by the music data notifying means.

[0013] In a karaoke center station for supplying music data and video signals to a plurality of karaoke terminals connected via a network, a video signal for generating a plurality of types of video signals is provided. Generating means, video signal selecting means for selecting a video signal to be transmitted for each of the karaoke terminals from among a plurality of types of video signals generated by the video signal generating means, and selecting by the video signal selecting means. Video signal conversion means for converting the video signal into a video signal unique to each of the karaoke terminals, and video signal transmission means for transmitting the video signal converted by the conversion means.

According to a ninth aspect of the present invention, in the karaoke center station apparatus according to the eighth aspect, the video signal converting means is configured to output the video signal selecting means based on a request transmitted from the karaoke terminal device. Is converted into a video signal containing information specific to the karaoke terminal device.

[0015] The invention according to claim 10 is the invention according to claim 8.
Or the karaoke center station device according to item 9, further comprising a storage unit storing correspondence between song data and the plurality of types of video signals, wherein the video signal selection unit is configured to output the song data notified from the karaoke terminal device. The video signal to be transmitted for each of the karaoke terminals is selected based on the information specifying the karaoke terminal and the information stored in the storage means.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

1. Configuration of Embodiment 1-1. Overall Configuration FIG. 1 is a block diagram showing the configuration of the embodiment. This embodiment is a network karaoke system according to the present invention, in which a center station 100 and n terminals 200-
1, 200-2,..., 200-n (hereinafter referred to as terminal 200 when no terminal is specified) are connected to the network. The network includes a LAN (Local Area Network) 300 for transmitting and receiving packet data, and
RF for transmitting and receiving video signals (high frequency: Radio Freq
uency) line 400.

The LAN 300 uses a LAN cable such as an optical fiber or a twisted pair cable, and the center station 100 and the terminal 200 can transmit and receive music numbers and music data as packet data according to a certain protocol. In this case, the plurality of terminals 200
, 200-2... 200-n transmit and receive data using a common transmission path. For the RF line 400, a transmission line having a wide frequency band such as a coaxial cable or an optical fiber is used. Then, a transmittable frequency band is allocated every several MHz (megahertz) as a unique frequency of each terminal 200. As described above, the center station 100 can transmit an individual video signal for each terminal 200 by using a frequency unique to the terminal 200.

By adopting such a network configuration, the center station 100 can receive data from the plurality of terminals 200 at any time. The image can be transmitted after being modulated to a unique frequency.

1-2. Detailed Configuration of Each Unit Next, a detailed configuration of the center station 100 and the terminal 200 will be described.

(1) Configuration of Center Station 100 The CPU 101 of the center station 100 controls each unit connected via a bus according to a program stored in the ROM 102. The ROM 102 stores a system program for controlling the entire apparatus, a program for searching for music data, and the like. The RAM 103 is a terminal 200
It is used for temporarily storing data transmitted from the. The hard disk 104 is a large-capacity disk that stores music data and the like. Hard disk 1
The music data stored in 04 is music data stored in advance and music data transmitted from a host device (not shown) via the communication interface 105. Also,
The communication interface 106 is an interface for connecting to the LAN 300, and music data to be transmitted to the terminal 200 is transmitted to the LAN 300 via the communication interface 106.

Background image reproducers 107a, 107b, 10
7c ... (hereinafter, if not specified, the background video player 10
7) reproduces a background video signal (video signal), and the type of video being reproduced by each background video reproducer is different. Various types of video are prepared according to, for example, the genre of the song or the age of the song. Such a video signal is generated, for example, by reproducing data recorded on a medium such as a compact disk or a laser video disk.

The switch box 108 is used to select an image corresponding to the music played by the terminal 200 from a plurality of types of reproduced video signals, and corresponds to each terminal 200 connected to the network. Terminal T1, T
2,... Tn (hereinafter referred to as terminal T unless otherwise specified)
In addition, a video signal reproduced by any of the background video reproducers 107 can be selected. The selection of the video signal is performed based on data received from each terminal 200 as described later. A unique frequency is assigned to each terminal 200, and individual information is superimposed on a video signal input from each terminal T in an individual information superimposing section 110, and a unique frequency of each terminal 200 is transmitted in an RF modulator 111. And transmitted to the RF line 400.

The individual information CD-ROM 109 stores information other than the background video. The individual information includes, for example, information on a new song, information on a singer, information related to the song such as a television program or a TV commercial in which the song is played, and information not related to the song such as a notice, a quiz, and a weather forecast. is there. In addition, the display form includes characters, computer graphics,
There are animations and promotional videos. The individual information superimposing unit 110 is a CD-ROM 109 for individual information.
Is superimposed on the video signal reproduced by the background video reproducer 107. For superposition, for example, a technique such as superimposition is used.

As described above, from among a plurality of different types of video being reproduced, a video requested by each terminal 200 is selected, and individual information is added to the selected video.

(2) Configuration of Terminal 200 Next, the configuration of the terminal 200 will be described. Terminal 200
CPU 201 controls each unit connected via a bus according to a program stored in ROM 202.
The ROM 202 stores a system program for controlling the entire apparatus, a sequencer program, and the like. A work area required for the operation of the CPU 201 is set in the RAM 203.

The panel interface 204 is provided with operators such as numeric keys, and is used to input a music number or desired information. The sound source 205 reproduces and outputs music data under the control of the CPU 201 that operates according to the sequencer program. The music data is transmitted from the center station 100 to the LAN 300 prior to the performance, and received by the terminal 200 via the communication interface 206.

In the present embodiment, as in the case of the conventional karaoke, a musical sound is reproduced and lyrics and images are displayed on the screen. The RF modulator 207 is for receiving and demodulating a video signal transmitted from the center station 100 to the RF line 400. Since the center station 100 transmits a video signal by modulating the frequency to a frequency unique to the terminal 200,
The terminal 200 on the receiving side receives only a video signal having a frequency unique to the terminal 200. The lyrics superimposing unit 208 superimposes lyrics on the video signal demodulated by the RF modulator 207. The lyrics are
It is generated based on the lyrics data included in the music data. For superposition, a technique such as superimposition is used. As the display unit 209, for example, a CRT display or the like is used.

As described above, the terminal 200 is
Only a video signal having a frequency unique to 0 needs to be fixedly received, and a configuration for appropriately switching channels is unnecessary, and a relatively simple configuration can be achieved.

1-3. Data Structure Here, a data structure used in the present embodiment will be described. FIG. 2 is a diagram showing a configuration of data used in the present embodiment, and each data will be described below.

(1) Music Data FIG. 2 shows the structure of a large number of music data stored in the hard disk 104 of the center station 100. As shown, the music data is composed of a header and track data. I have. The header records various information related to song data, and the various information includes, for example, a song number and background designation data. The music number is data for specifying music data, and one music number is assigned to one music data. The background designation data is data for specifying a video to be output as a background video when the music is reproduced. Based on this background designation data, it is possible to select which of the background video reproducers 107 transmits the video signal reproduced.

The track data includes a musical sound track,
Each track is composed of event data indicating a specific operation of the performance, and time data indicating a read timing of the event data. As shown in the figure, the time data is delta time data (Δ
t) or absolute time data from the start of the performance. The event data is data based on the MIDI standard, for example, if it is a musical sound track, and is data for designating sound generation, mute, pitch, and the like of a musical sound. In the case of a lyrics track, it is data for displaying lyrics along with the reproduction of a musical tone, and is composed of codes for designating characters, data for indicating display time, color change timing, and the like.

(2) Packet Data In this embodiment, the center station 100 and the terminal 200
Data exchange is performed by exchanging packet data via the N300. Packet data is
As shown in FIG. 2, the packet data includes a transmission address indicating the destination of the packet data, a transmission address indicating the source of the packet data, type data indicating the type of data, and transmission data. The transmission data includes data such as a song number, individual information designation data, and song data.

Each device connected to the LAN 300 is assigned a unique address. By referring to the transmission address, it is possible to determine whether or not the packet data is data transmitted to itself. Also, the device that has received the packet data can determine from which device the data is transmitted by referring to the transmission address.

In the data type indicated by the type data, for the data transmitted by the terminal 200, for example,
There are "request", "play start", "play end",
For data transmitted by the center station 100, for example,
"Song data transmission" and the like. The device that has received the packet data can perform various processes by determining the type data.

Here, the relationship between the type of data and the contents of transmission data will be described. First, when the data type is “request”, the content of the transmission data is either the music number or the individual information designation data. Here, the individual information designation data is data indicating what kind of individual information is requested. For example, the individual information CD-R
This is data indicated by an individual information number assigned to the individual information recorded in the OM 109.

Next, when the data type is "start of performance", the content of the transmission data is only the music number. The center station 100 that has received the packet data whose data type is “start playing” selects the background video based on the background designation data recorded in the header of the music data corresponding to the music number, and transmits the packet data. The video signal is transmitted to the original terminal 200 at a unique frequency. If the data type is "end of performance", a unique frequency at which transmission is to be terminated is specified from the transmission address, and transmission of the video signal is terminated.

2. Operation of Embodiment Next, the operation of the embodiment having the above configuration will be described.

2-1-1. Operation of Center Station 100 First, the operation of the center station 100 will be described. As described above, the center station 100 transmits music data and a video signal to each terminal 200 based on the received packet data. FIG. 3 is a flowchart showing the operation of the center station 100.

First, packet data having the address of the center station 100 as a transmission address is received from the LAN 300 (S101). Then, the source terminal 200 is specified with reference to the source address of the received packet data (S102). Next, the type data of the received packet data is read, and the type of the data is determined (S10).
3). If the data type is "Request",
Next, it is determined whether or not the transmission data includes a music number (S104). If it is determined that the song data is included in the transmission data, song data corresponding to the song number is read from the hard disk 104, and packet data using the read song data as transmission data is generated. Then, the generated packet data is transmitted to the terminal 200 specified in step S102 (S105). In addition,
If the music data corresponding to the music number is not stored in the hard disk 104, the music data is received from a host device (not shown) via the communication interface 105. Step S1
In the determination of 04, when it is determined that the transmission data does not include the song number, it means that the transmission data includes the individual information designation data, and thus preparations are made to superimpose the individual information on the video signal. That is, the individual information corresponding to the individual information designation data is stored in the individual information CD-ROM 109.
And supplies it to the individual information superposition section 110 (S1
06).

If it is determined in step S103 that the data type is "start of performance", the music number included in the transmission data is read. And
The music data corresponding to the music number of the transmission data is searched from among a large number of music data stored in the hard disk 104, and the background designation data of the searched music data is read (S107). Next, by controlling the switch box 108, the background video player 1 designated by the background designation data
Select 07. Then, the video signal reproduced by the background video reproducer 107 selected in step S107 is supplied to the separate information superimposing unit 110 via the terminal T corresponding to the terminal 200 specified in step S102 (S108). Next, the separate information superimposition unit 110 compares the individual information supplied in step S106 with step S10.
8 is superimposed on the video signal supplied in S8 (S10).
9). Then, the video signal on which the individual information is superimposed is supplied to the RF modulator 111, and is modulated to the frequency specific to the terminal 200 specified in step S102, and
0 (110).

Further, in the determination in step S103,
If it is determined that the data type is "end of performance", the transmission of the video signal of the frequency unique to the terminal 200 that is the source of the packet data is stopped (S111).

The center station 100 executes the processing (S
101 to S111), each terminal 2
The packet data is received from 00 and various processes corresponding to the data type of the packet data are performed.

2-1-2. Next, an operation of the terminal 200 will be described. Terminal 200
Performs a request operation for receiving supply of music data from the center station 100, and independently performs a karaoke music performance and a background video display operation.

(1) Request Operation FIG. 4 is a flowchart showing a request operation of the terminal 200. The CPU 201 of the terminal 200 receives the music number from the panel interface 204 (S20).
1) The data type is set to "request", and packet data including the input music number in the transmission data is generated (S202). Then, the generated packet data is transmitted to the center station 100 (S203).

After transmitting the packet data, it is determined whether or not the music data corresponding to the transmitted music number has been received from the center station 100 (S204). It becomes a reception waiting state (S204; NO). Here, when the address of the terminal 200 is set as the transmission address and packet data whose data type is “song data transmission” is received, it is determined that the song data has been received. When it is determined that the music data has been received (S204; YES), the received music data is stored in the RAM 203, and the terminal 200 enters a playable state.

(2) Performance Operation Next, the performance operation will be described with reference to the flowchart shown in FIG. First, the CPU 201
Of the music data stored in the memory (S30)
1). Then, the data type is set to "play start", packet data including the music number in the transmission data is generated and transmitted to the center station 100 (S302).

After transmitting the packet data, as described above (see FIG. 3), the video signal corresponding to the music data is transmitted from the center station 100 at the carrier frequency specific to the terminal 200, and the RF modulator 207 is transmitted. Is input to the lyrics superimposing unit 208 via Next, the CPU 201
Each event data is sequentially executed based on the time information of the song data and the lyrics data in the song data (S30).
3). More specifically, a tone signal is output from the sound source 205 at the time designated by the time information, and
8 is supplied with lyrics data. The lyrics superimposition unit 208
The lyrics are superimposed on the video signal supplied from the modulator 207 and displayed on the display unit 209 as a video (30
4). Then, when the execution of one event data ends, it is determined whether or not the performance has ended (S305). Here, when all the event data in the music data has been executed, it is determined that the performance has ended.

If it is determined in step S305 that the performance has not ended (S305; NO),
Returning to step S303, the next event data is executed. On the other hand, when it is determined that the performance has ended (S30
5; YES), generate packet data whose data type is "end of performance", and transmit it to the center station 100 (S3).
06).

2-2. Specific Operation Each operation described above will be described more specifically.
The user inputs from the panel interface 204 of the terminal 200-1 to display “new song information”, which is information on the new song, as individual information. In response to this input, terminal 200 sets the data type to “request”, generates packet data including individual information instruction data instructing transmission of “new song information” in transmission data, and transmits the packet data to center station 100. The center station 100 that has received the packet data reads out data for displaying “new song information” from the individual information CD-ROM 109 and supplies the data to the individual information superimposing unit 110.

When the user inputs a music number from the panel interface 204, the terminal 200-1 sets the data type to "request", generates packet data including the music number in the transmission data, and sends the packet data to the center station 100. Send. The center station 100 transmits music data corresponding to the music number to the terminal 200-1. The terminal 200-1 having received the packet data stores the music data in the RAM 203. Then, the music data is read from the RAM 203, the data type is set to “play start”, packet data including the music number in the transmission data is generated and transmitted to the center station 100.

The center station 100 stores the music data corresponding to the music number in the received packet data on the hard disk 10.
4 and reads the background designation data in the searched music data, and selects which background video reproducer 107 transmits the video signal reproduced to the terminal 200-1.
Here, it is assumed that the background video player 107a is selected.
FIG. 6A shows an example of a video being reproduced by the background video reproducer 107a. FIG. 6B is a display example of the individual information. In the example shown here, a moving image by computer graphics introducing the new song information and character information indicating the new song information are displayed. . And FIG.
(3) is an example of a video on which individual information is superimposed. In this way, the video in which the individual information requested from terminal 200-1 is superimposed on the selected background video is modulated to a frequency unique to terminal 200-1, and transmitted from RF modulator 111 to RF line 400. . The terminal 200-1 always receives the video signal of the specific frequency, and thus receives the video signal of the specific frequency transmitted from the center station 100.

The terminal 200-1 executes the event data in the music data after transmitting the packet data whose data type is "play start" to the center station 100. FIG. 7A shows the lyrics supplied to the lyrics superimposing unit 208 by executing the event data of the lyrics data. The lyrics superimposing unit 208 superimposes lyrics on the video signal (see FIG. 6C) supplied from the center station 100 to generate a display video. FIG. 7B shows a display image after the lyrics are superimposed.

As described above, the background image specified by the music data to be played is selected from the plurality of background images,
Individual information is further superimposed on the video. And terminal 2
Since the video signal is transmitted after being modulated to a frequency unique to 00, the center station 100 can supply an individual video for each terminal 200. In each terminal 200,
If only the video signal of one frequency is received, the requested individual video can be received, and a configuration for switching the reception frequency according to the music is not required, so that the apparatus can be simplified.

3. Modifications The present invention is not limited to the above-described embodiments, and various modifications as described below are possible.

In the above embodiment, the network line to be used is connected to the LAN 300 for transmitting and receiving packet data,
Although the description has been made separately with the RF line 400 for transmitting and receiving video signals, the present invention may be implemented using a common network line. In this case, for example, a part of the frequency band of the RF line 400 may be used for transmitting and receiving packet data.
In the above-described embodiment, the carrier frequency of the video signal is changed for each terminal. However, in order to make the video signal unique to the terminal, not only the carrier frequency but also a spreading code, a phase, a time-division time slot, and the like are used. You may change it. Also, the data configuration shown in the embodiment is an example,
Other data configurations may be used as long as necessary information can be transmitted.

Further, the terminal device may be configured to receive a plurality of carrier frequencies, and when the terminal device is arranged in each karaoke box, the reception frequency may be fixedly set to a frequency specific to the room. Alternatively, a configuration may be adopted in which a single frequency is tuned from the beginning, and a terminal having a reception frequency corresponding to each room is appropriately arranged.

Further, in the above embodiment, from the reception of the packet data whose data type is "end of performance" from the terminal 200 to the reception of the packet data whose data type is "start of performance", Although a video signal with a unique frequency is not transmitted to the terminal 200, a commercial video may be transmitted while no music is being played. In this case, one background video reproducer 107 is dedicated to commercial video reproduction, and until the packet data whose data type is “start playing” is received, the background video reproducer 107 dedicated to commercials is used.
The video signal reproduced by is transmitted.

Also, as in the above-described embodiment, transmission of packet data whose data type is “end of performance” is not necessarily required, and the center station 100 determines whether or not the terminal 200 has ended the performance. Instead, the same video signal may be kept transmitted until packet data whose data type is "play start" is received. Further, the transmission data of the packet data whose data type is “end of performance” may be transmitted including data indicating the presence or absence of the remaining reserved music. In this case, if there is any remaining reserved music, the next music number may be transmitted together with the data to change to the packet data whose data type is "play start". If there is no remaining reserved music, the center station 100 may transmit a commercial video signal after terminating the transmission of the video signal corresponding to the previous music.

When a plurality of music numbers are input from the panel interface 204, the terminal 200 receives the plurality of music data from the center station 100 and
May be stored. In this case, for example, music data and data such as the input order may be stored together as priority information.

Further, in the above embodiment, the music number and the individual information designation data are transmitted to the center station 100 as separate packet data, but the individual information designation data is stored in the terminal 200 side. , When transmitting packet data whose data type is “play start”,
The individual information designation data may be included in the transmission data together with the music number.

In the above embodiment, the individual information is not superimposed on the background video if there is no request. However, if there is no request, predetermined information may be superimposed. In that case, the user may be able to make a request not to superimpose the individual information. When the type of data is “request” and the transmission data does not include data, predetermined information may be superimposed. This predetermined information may be determined for each terminal 200.

In the above embodiment, the packet data including the music number in the transmission data is transmitted so that the background video can be specified from the music data corresponding to the music number. However, the present invention is not limited to this. May be transmitted. The background designation data is directly transmitted to the background video retransmitter 10.
7 may be specified, or, for example, data indicating a genre. Alternatively, the center station 100 may be separately provided with a correspondence table for associating the song number with the background designation data without including the background designation data in the song data. In this case, the center station 100 that has received the song number can identify the background video player 107 based on the correspondence table instead of reading the song data stored in the hard disk 104.

The number of center stations 100 is not limited to one, and a plurality of center stations may be connected to the network. For example, a center station 10 for distributing music data
0 and the center station 100 'for distributing video may be different.

The video is reproduced by, for example, an LD in the background video reproducer 107, but the video signal may be received from outside. For example, a cable broadcast or a television broadcast may be received.

[0066]

As described above, according to the present invention,
A network karaoke system in which a karaoke center station can supply individual videos to each karaoke terminal device can be realized with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an embodiment.

FIG. 2 is a diagram showing a data configuration.

FIG. 3 is a flowchart illustrating an operation of a center station.

FIG. 4 is a flowchart illustrating a request operation of a terminal.

FIG. 5 is a flowchart showing a performance operation of the terminal.

FIG. 6 is a diagram illustrating an example of a background image.

FIG. 7 is a diagram illustrating an example of a display image.

[Explanation of symbols]

 100 Center station 200 Terminal 300 LAN line 101 CPU 102 ROM 103 RAM 104 HDD 105, 106 Communication interface 107a, b, c ... ... Background image reproducer 108... Switch box 109... Individual information CD-ROM 110... Individual information superimposing unit 111... … Sound source 206… Communication interface 207… RF modulator 208… Lyrics superimposition section 209… Display section

Claims (10)

[Claims] 1. A karaoke center station apparatus for supplying song data and video signals to each karaoke terminal apparatus and a network karaoke system in which a plurality of karaoke terminal apparatuses are connected via a network line. Video signal generating means for generating a video signal of the following, from among a plurality of video signals generated by the video signal generating means, a video signal selecting means for selecting a video signal to be transmitted for each of the karaoke terminal devices, The video signal selected by the video signal selection means is
The karaoke terminal device comprises: a video signal conversion unit configured to convert the video signal into a video signal unique to each of the karaoke terminal devices; and a video signal transmission unit configured to transmit the video signal converted by the conversion unit. A network karaoke system comprising: a video signal receiving unit that receives only a video signal preset for the karaoke terminal device from the video signals transmitted by the transmitting unit. 2. The video signal converting means modulates the video signal selected by the video signal selecting means to a unique carrier frequency set for each of the karaoke terminals, and the video signal receiving means comprises: 2. The network karaoke system according to claim 1, wherein the terminal karaoke system demodulates reception of only a video signal having a unique carrier frequency preset in the terminal device. 3. The karaoke terminal device further includes an individual information requesting unit for requesting the karaoke center station device to transmit a video including individual information to the karaoke terminal device, The video signal conversion means converts the video signal selected by the video signal selection means into a video signal containing information specific to the karaoke terminal device based on the request in the individual information request means. The network karaoke system according to claim 1. 4. The karaoke center station, wherein each of the karaoke terminal units further includes song data notification means for notifying the karaoke center station device of information specifying song data to be played by the karaoke terminal device. The apparatus further includes storage means for storing correspondence between song data and the plurality of types of video signals, wherein the video signal selection means is stored in the information notified by the song data notification means and the storage means. 4. The network karaoke system according to claim 1, wherein a video signal to be transmitted to each of said karaoke terminals is selected based on information. 5. A karaoke terminal device connected via a network to a karaoke center station device for supplying music data and video signals, wherein a video signal transmitted from the karaoke center station device is transmitted to the karaoke terminal device. A karaoke terminal device comprising a video signal receiving means for receiving only a preset video signal. 6. The karaoke center station device further comprises individual information requesting means for requesting the karaoke terminal device to transmit a video including individual information to the karaoke terminal device. The karaoke terminal device according to claim 5, wherein the video signal including the individual information requested by the request means is received. 7. The karaoke center station apparatus further includes a music data notifying means for notifying information for specifying music data to be played by the karaoke terminal device, and wherein the video signal receiving means includes the music data notifying means. 7. The karaoke terminal device according to claim 5, wherein a video signal corresponding to the music data notified by the means is received. 8. A karaoke center station device for supplying music data and video signals to a plurality of karaoke terminal devices connected via a network, wherein: a video signal generating means for generating a plurality of types of video signals; Means for selecting a video signal to be transmitted for each of the karaoke terminals from among a plurality of types of video signals generated by the means, and a video signal selected by the video signal selecting means,
A karaoke center station device comprising: a video signal conversion unit that converts the video signal into a video signal unique to each of the karaoke terminals; and a video signal transmission unit that transmits the video signal converted by the conversion unit. 9. The video signal conversion unit converts the video signal selected by the video signal selection unit based on a request transmitted from the karaoke terminal device into a video signal including individual information for the karaoke terminal device. 9. The karaoke center station device according to claim 8, wherein the conversion is performed. 10. A karaoke terminal device further comprising: storage means for storing correspondence between song data and the plurality of types of video signals, wherein the video signal selection means includes information for identifying the song data notified from the karaoke terminal device. 10. The karaoke center station apparatus according to claim 8, wherein a video signal to be transmitted to each of the karaoke terminals is selected based on the information stored in the storage unit.