JP2004102306A - Karaoke sing along machine network system and karaoke sing along machine terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a KARAOKE sing along machine network system which simplifies the configuration of KARAOKE sing along machine terminal sides and does not degrade the contents of services. <P>SOLUTION: A plurality of KARAOKE sing along machine terminals (30) and a common center office (20) are connected to each other by a LAN (Local Area Network) (10). The KARAOKE sing along machine terminals request the center station for music data of desired performance music. The center station transfers the music data corresponding to the requests to the terminals making the requests. The center station keeps channeling off the video data of a plurality of channels at all times independently from the transfer of the music data. Consequently, the terminal sides can reproduce the performance music based on the musical sound data included in the music data, can reproduce lyric images based on lyric data and further can select the video data and can reproduce animation image videos based on video channel assignment data. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a karaoke network system and a karaoke terminal device that connect a plurality of karaoke terminals to a common center station via a local area network (LAN).

In the karaoke system where singers sing along with the karaoke accompaniment, a high percentage of self-contained karaoke systems that perform all of the playback of the performed music, lyrics display, and even background moving image display with only one karaoke device are still high. is occupying. As an example, in the case of a karaoke apparatus called a laser karaoke, for example, a large number of laser disks storing the sound signals of the music played and the mixed data of the lyrics and the moving image corresponding to the music, and one of the laser disks are selected. A disc changer and a dedicated player for reproducing data of the requested music from the selected disc are provided.

カ ラ オ ケ In a music synthesis type karaoke apparatus, a music piece can be synthesized and reproduced by inputting music data included in music data to a music synthesis apparatus (sound source) called a tone generator. In this type of karaoke apparatus, video data and musical sound data can be stored separately. Therefore, when a system configuration in which one video data is shared by a plurality of music pieces is realized, the video data storage The capacity of the disc can be reduced, and the configuration of the entire karaoke apparatus can be simplified. To further develop this idea, in a system where the center station and the karaoke terminal are connected by a telephone line and the required song data is requested and transferred to the center station, the song data is stored on the karaoke terminal side. Basically, a storage medium to be saved becomes unnecessary.

However, even in such a case, in a conventional system requiring a disk storing video data for each karaoke apparatus and a player thereof, simplification of the apparatus configuration installed on the reproduction side is prevented, and cost reduction is difficult. . An object of the present invention is to provide a karaoke network system that simplifies the configuration of the karaoke terminal and does not reduce service contents. It is another object of the present invention to provide a karaoke network system which does not complicate the configuration of the center station by limiting the types of video data. Another object of the present invention is to provide a karaoke terminal device connected to such a network system.

A karaoke network system according to the present invention is a karaoke network system in which a center station and a plurality of karaoke terminal devices are connected via a common network line. Different background video signals are frequency-division multiplexed and always output, and music data is transmitted in response to request data transmitted from the karaoke terminal device. The music data transmitted by the center station includes terminal designation information and musical sound information. , Lyric information and video frequency designation information managed by the center station for selecting a background video signal, wherein the background video signal, the music data, and the request data are transmitted independently of each other, and the karaoke terminal device Sends request data to the center station via the network line and receives It is determined whether or not the terminal designation information included in the received music data is music data addressed to the own terminal, and if the music data is music data addressed to the own terminal, the musical sound information included in the music data is input to generate a music signal. And demodulates only the background video signal of the frequency indicated by the video frequency designation information included in the music data from the plurality of background video signals transmitted via the network line, and includes the background video signal included in the music data. A lyric image signal is formed based on the lyric information, and the demodulated background video signal and the lyric image signal are combined to generate and display a combined video signal.

As a more specific configuration, the center station includes a video data supply unit that repeatedly sends video data of a plurality of channels, and a music data supply unit that sends music data of a music piece requested by the terminal, The karaoke terminal includes a song data input unit that captures the requested song data, a tone synthesis unit that synthesizes and outputs a performance song based on the tone data included in the song data, and a lyric image based on the lyrics data included in the song data. A lyrics image reproducing unit to be formed, a video selecting unit for selecting video data of a corresponding channel from the video data of the plurality of channels based on video channel designation data included in the music data, and a moving image based on the video data And a monitor for superimposing and displaying the lyrics image.

In the above configuration, when the local area network (LAN) is divided into a plurality of channels in terms of frequency, for example, one channel is used for transferring the music data having a small data amount, and the plurality of video data having a large data amount is used. The remaining channels are used for the transfer. In this case, the packet data is used to transfer the music data and the destination terminal is distinguished, and the video data is transmitted by using the frequency division method so that the video data of a plurality of channels can always be transferred seamlessly. be able to.

According to the karaoke terminal device of the present invention, a plurality of different background video signals managed by the center station are frequency-division multiplexed and transmitted, and music data, request data, and the background video signal are transmitted independently of each other. Request means for outputting request data of a desired song to the network line, terminal designation information and tone information transmitted from the center station in response to the request data. A song data receiving unit for receiving song data including lyrics information and video frequency designation information managed by the center station, and a song data receiving unit among a plurality of background video signals transmitted via a network line. Selectively demodulates only the background video signal of the frequency indicated by the video frequency designation information included in the received music data Image selection means, sound source means for inputting musical information included in the music data received by the music data receiving means to form and output a musical sound signal, and terminal designation information included in the music data received by the music data receiving means Address determination means for determining whether or not the information is addressed to the own terminal; and when the received music data is determined to be information addressed to the own terminal, the video frequency designation included in the music data is determined. Data processing means for instructing the frequency of the background video signal to be selected to the video selection means by the information, outputting the musical sound information to the sound source means as appropriate, and forming and outputting a lyric image signal based on the lyric information corresponding to the musical sound information And an image synthesizing unit for synthesizing the background video signal selected by the video selection means and the lyric image signal generated by the data processing means to output a synthesized video signal; Characterized by comprising a display means for displaying the composite video signal outputted from the image synthesizing unit.

In the karaoke network system of the present invention, the plurality of karaoke terminals and the center station are connected by a LAN, and the karaoke terminal requests the center station for music data of a desired music piece. The center station transfers the music data corresponding to the request to the requesting terminal. Independently of the transfer of the music data, the center station always keeps streaming video data of a plurality of channels. For this reason, the terminal reproduces the performance music on the basis of the musical sound data included in the music data, forms a lyrics image based on the lyrics data, and further selects the video data based on the video channel designation data to reproduce a moving image. be able to.

The karaoke terminal apparatus of the present invention determines only the address of the performance data addressed to the terminal itself and takes in the data. Since the performance data includes tone information, lyrics information, and video frequency designation information, a tone signal is formed from the tone information, and a lyrics image is formed from the lyrics information. The background video is selected and used from among the background video data that is constantly transmitted based on the video frequency designation information. Therefore, a storage medium for video data is not required on the terminal side, and the configuration is simplified.

As described above, the karaoke network system of the present invention does not require a video data supply source such as a laser disk on the karaoke terminal side, thereby simplifying the terminal configuration. Nevertheless, since the video data is supplied from the center station, there is no loss of moving picture video which is indispensable for karaoke performance on the terminal side. The karaoke terminal according to the present invention does not store song data necessary for karaoke performance. However, if a request is made on the terminal side, the corresponding music data is transferred at a high speed from the center station, so that even in a system state in which a large number of terminals are connected, the performance start on the requesting terminal side is not extremely delayed. In this system, a CH is selected from a plurality of video CHs that are continuously reproduced. This system configuration eliminates the need for a disc changer as compared with a system that selects and supplies a requested one from a large number of video data, so that the configuration on the center station side can be simplified. Also, since this video data is constantly flowing, even if a request is made for the same song at a different timing immediately upon selection, and by playing back a single disk at the center side simultaneously at a plurality of terminals, it can be performed simultaneously at a plurality of terminals. It can be displayed on a monitor.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The karaoke LAN system of the present invention is configured as shown in the schematic system diagram of FIG. A center station 20 as a karaoke server is connected to a LAN 10 using a transmission line having a wide frequency band such as a coaxial cable or an optical cable, and a plurality of karaoke terminals 30 are additionally connectable at positions where a karaoke performance is desired. You. The center station 20 includes a video data supply unit 21 for repeatedly transmitting video data of a plurality of channels, and a music data supply unit 22 for transmitting music data of a music piece requested by the karaoke terminal 30.

The karaoke terminal 30 includes a song data input unit 31 for receiving the requested song data, a tone synthesis unit (TG) 32 for synthesizing a musical piece based on the tone data included in the song data, and lyric data included in the song data. A data processing unit 33 having a function of forming a lyric image based on the video data, and a video selecting unit 34 for selecting video data of a corresponding channel from the video data of the plurality of channels based on video channel designation data included in the music data. An image synthesizing unit 35 for superimposing the lyrics image on a moving image based on the video data; and a monitor 36 for displaying the synthesized video signal.

A request CH (channel) for requesting a desired song from the terminal 30 to the center station 20 and song data for transferring song data corresponding to the request from the terminal 30 from the song data supply unit 22 of the center station 20 to the LAN 10. CH and a plurality of video data CHs for simultaneously supplying a plurality of video data from the video data supply unit 21 of the center station 20 are set.
When the LAN 10 is divided into a plurality of channels in terms of frequency and used, for example, one channel is used for transferring music data having a small data amount, and a plurality of channels are used for transferring the plurality of video data having a large data amount. Use For example, when a private line such as CATV is used as the LAN 10, the upper limit of the usable band is up to about 1 GHz. Therefore, a plurality of channels can be set by the following frequency division.

1) A different request CH is allocated to each terminal at intervals of 0.1 MHz from the request CH of 20 MHz. If the upper limit is 65 MHz, which is 6 MHz lower than the music data CH, each terminal can be identified even when a maximum of 450 terminals are connected.
2) Using only one CH of the song data CH 71 MHz, digital packet transfer is performed in which the destination terminal is identified by the address.
3) Different video data CH is allocated to each video data at intervals of 6 MHz from 77 MHz of video data CH. If the upper limit is 1 GHz, video data of up to about 150 CH can be supplied simultaneously.

FIGS. 2 to 4 are detailed views of each part of FIG. As shown in FIG. 2, the video data supply unit 21 converts a plurality of laser disk (LD) players 41A, 41B, 41C, 41D... And video data (video signals) reproduced therefrom into carriers 77 MHz, RF (high-frequency) modulators 42A, 42B, 42C, 42D... Which modulate at 83 MHz, 89 MHz, 95 MHz. These carrier frequencies correspond to CH4, CH5, ... of CATV.

The LD players 41A, 41B, 41C, 41D... Repeatedly reproduce the LD1 to LD4 having different contents, respectively. For example, LD1 stores a background image of summer enka, an LD2 stores a background image of winter enka, an LD3 stores a background image of summer pops, and an LD4 stores a background image of winter pops. As described above, since the center side continuously plays different images for each channel, the terminal side can obtain a karaoke background image only by matching the image CH to the CH.

As shown in FIG. 3, the music data supply unit 22 demodulates the request data from the karaoke terminal by the RF modem 51, identifies which terminal the request is from for each frequency, and stores the content of the request in the next memory. Write to 52. The CPU 53 scans the memory 52 by, for example, a polling method and reads the contents (request music). When detecting the request, the CPU 53 accesses the music database 54 and reads out the music data of the music piece corresponding to the request. The music data is a digital signal, which is passed on to the RF modem 55 with the address of the requesting destination terminal attached thereto. The RF modem 55 modulates the music data with a 71 MHz carrier and transmits the modulated music data.

As shown in FIG. 4, the format of the music data starts with a header H and ends with a tailor T. The destination data includes a destination terminal address, video CH designation data, musical sound and lyrics data, and serial data with a check bit code inserted. This is transferred at a high speed (for example, at 5 to 10 Mbps). The video CH designation data is predetermined so as to form a pair with the musical sound and lyrics data.

(5) The karaoke terminal 30 can make a request by inputting a music number of a desired music piece from the karaoke commander 61 as shown in FIG. This request is modulated by a carrier of a terminal-specific frequency (for example, 20.3 MHz) in the RF modem 62, output to the LAN 10, and received by the center station 20. When the music data is transferred from the center station 20 on the carrier of 71 MHz in response to this request, the RF modem 63 receiving the signal of 71 MHz demodulates the signal and determines whether the address check circuit 64 has its own address. Check if not. If it is its own address, the song data is karaoke song data addressed to its own terminal and is transferred to the data processing unit 33. If the address is not that of the own terminal, it is not transferred to the data processing unit 33 because it is data of another terminal. Therefore, the commander 61, the RF modems 62 and 63, and the address check circuit 64 constitute the music data input unit 31 in FIG.

The data processing unit 33 inputs the musical sound data from the fetched music data to the musical sound synthesizing unit 32 and causes the speaker 65 to output the musical composition. At the same time, a lyric image corresponding to a musical tone is formed from the lyric data and output to the image synthesizing unit 35. That is, when synthesizing the lyrics image, the character dot pattern is written from the image ROM (not shown) to the video memory (not shown) based on the lyrics data. Both the image ROM and the video memory constitute a data processing unit, but their description is omitted in the drawings. The lyrics image data written in the video memory is input to the image synthesizing unit 35 as a lyrics image signal under the control of a video controller (not shown).

(4) Further, only the video data of the specified frequency is demodulated by the RF modulator (video selection unit) 34 based on the video CH specified data. The demodulated data is supplied to the image synthesizing unit 35, and a video signal obtained by superimposing the lyrics image signal is output to the monitor 36, and the synthesized video of the lyrics and the background video is displayed on the monitor 36. In this case, since the data specifying the channel of the video that matches the atmosphere of the song is transmitted as the video CH designation data along with the song data, the background image of the karaoke can be displayed on the monitor even if the terminal does not have a video playback device. Can be displayed. In addition, since the center station always reproduces the background video, the terminal does not need to wait for the time for preparing the video reproduction. A singing voice from a microphone (not shown) is mixed and input to the speaker 65, but the configuration of this portion is omitted in the drawing.

1 is a schematic system configuration diagram showing one embodiment of the present invention. FIG. 3 is a detailed configuration diagram of a video data supply unit. It is a detailed block diagram of a music data supply part. It is a figure showing the format of music data. It is a detailed block diagram of a karaoke terminal.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 10 ... LAN, 20 ... Center station, 21 ... Video data supply part, 22 ... Music data supply part, 30 ... Karaoke terminal, 31 ... Music data input part, 32 ... Music synthesis part, 33 ... Data processing part, 34 ... Video Selection unit, 35 ... monitor.

Claims (2)

In a karaoke network system in which a center station and a plurality of karaoke terminal devices are connected via a common network line,
The center station frequency-division multiplexes a plurality of different background video signals managed by the center station on the network line and constantly outputs the same, and also transmits music data in response to request data transmitted from the karaoke terminal device. And
The music data transmitted by the center station includes terminal designation information, musical sound information, lyrics information, and video frequency designation information managed by the center station for selecting a background video signal,
The background video signal, the song data, and the request data are transmitted independently of each other,
The karaoke terminal device sends request data to the center station via the network line, determines whether the terminal designation information included in the received music data is music data addressed to the own terminal, and determines whether the music data is addressed to the own terminal. If the data is data, the musical sound information included in the music data is input to form a musical sound signal, and among a plurality of background video signals transmitted through the network line, the video frequency included in the music data is included. Only the background video signal of the frequency designated by the designated information is demodulated, a lyrics image signal is formed based on the lyrics information included in the music data, and the demodulated background video signal and the lyrics image signal are synthesized. A karaoke network system for generating and displaying a composite video signal. A plurality of different background video signals managed by the center station are frequency-division multiplexed and transmitted, and connected to a network line through which song data, request data, and the background video signal are transmitted independently of each other. A karaoke terminal device,
Request means for outputting request data of a desired song to a network line;
Music data receiving means for receiving music data including terminal designation information, musical sound information, lyric information and video frequency designation information managed on the center station side, transmitted from the center station in response to the request data;
Of the plurality of background video signals transmitted via the network line, only the background video signal of the frequency designated by the video frequency designation information included in the music data received by the music data receiving means is selectively demodulated. Video selection means,
Sound source means for inputting tone information included in the song data received by the song data receiving means to form and output a tone signal;
Address determination means for determining whether the terminal designation information included in the music data received by the music data reception means is information addressed to the terminal itself,
When the received music data is judged by the address judging means to be the information addressed to the own terminal, the frequency of the background video signal to be selected is indicated to the video selecting means by the video frequency designation information included in the music data. A data processing means for outputting music information to a sound source means as appropriate, forming and outputting a lyrics image signal based on lyrics information corresponding to the music information,
An image synthesizing unit that synthesizes the background video signal selected by the video selection unit and the lyric image signal generated by the data processing unit and outputs a synthesized video signal;
Display means for displaying a composite video signal output from the image compositing unit.

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