JP4446623B2 - Online karaoke system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication karaoke system compatible with a broadband network (high-speed communication network).
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a communication karaoke system that reproduces karaoke data composed of music data and background video images in response to a user request.
[0003]
A conventional communication karaoke system includes a host server that distributes music data to a communication karaoke apparatus installed in a karaoke store, etc., and receives music data from the host server via a public line, and the received music data is a hard disk device. And a communication karaoke device that plays the corresponding music piece and reproduces the background moving image to be displayed from the built-in optical disc device.
[0004]
Since the conventional communication karaoke system uses a low-speed public line (analog / ISDN line) for distribution, it has been problematic in terms of efficiency and cost to distribute the background video image from the host server. Video was stored in a communication karaoke device in the state of media such as an optical disc, but the delivery method is expected to change with the advent of a new infrastructure, a large-capacity, high-speed, broadband network that can be always connected. .
[0005]
Specifically, in the conventional online karaoke system, music data and background video were stored in the mobile karaoke device on the terminal side, but in the new online karaoke system, music data and background video were communicated in real time using the on-demand method. We believe that the mainstream method will be to play while downloading to a karaoke device.
[0006]
[Problems to be solved by the invention]
By using a broadband network in this way, it is thought that music data and background video can be delivered from the host server to the online karaoke device at the karaoke store using the on-demand method, but the overall scale of the online karaoke system is Usually, thousands to tens of thousands of online karaoke devices are connected, so depending on the time of day, thousands to tens of thousands of online karaoke devices access the host server all at once and request for a request. In order to respond quickly to this access and deliver karaoke data to a communication karaoke machine without stress, requests will be concentrated unless a host server with large-scale data transfer capability is prepared. If the processing becomes heavy and the response of the host server becomes very bad Cormorant problem it has been found that there is. In other words, if the host server needs a data transfer capacity of 5 Mbps per communication karaoke device in order to distribute karaoke data (music data and background video image) to the communication karaoke device, for example, a request can be made during a busy hour. This is because when data is concentrated and karaoke data is distributed simultaneously to tens of thousands of communication karaoke apparatuses, data transfer capability of 5 Mbps × tens of thousands of units is required.
[0007]
Furthermore, if the number of users of the online karaoke system service increases and the number of online karaoke devices increases, there is a problem that the data transfer capability of the host server must be increased accordingly.
[0008]
In addition, since a host server having a large data transfer capability is expensive, there is a problem that the service usage fee of the communication karaoke system becomes high.
[0009]
Therefore, the present invention has been made to solve such a problem, and the purpose of the present invention is to enable many communication karaoke apparatuses to download karaoke data in real time without unnecessarily increasing the data transfer capability of the host server. It is to provide a communication karaoke system that can be performed on the Internet.
[0010]
Another object of the present invention is to provide a communication karaoke system capable of setting a low usage fee for a communication karaoke system service by reducing the cost of the host server without unnecessarily increasing the data transfer capability of the host server. Is to provide.
[0011]
Another object of the present invention is to provide a communication karaoke apparatus with the function of a host server, divide karaoke data, distribute and store it in a plurality of communication karaoke apparatuses, and store karaoke data requested by the communication karaoke apparatus. A communication karaoke system that can manage which communication karaoke device should make a request request to each communication karaoke device when configured to distribute from another communication karaoke device having the corresponding karaoke data Is to provide.
[0012]
Another object of the present invention is to provide a communication karaoke apparatus with a hard disk device having a host server function and a hard disk device-less communication karaoke apparatus without a host server function as a communication karaoke apparatus provided to a user. If you prepare and let the user select one of the online karaoke devices, avoid the use of a hard-wired online karaoke device with a host server function that is expensive and large. An object of the present invention is to provide a communication karaoke system that can promote the spread of a communication karaoke apparatus with a hard disk device having the function of a host server, and can set a low usage fee for the communication karaoke system. It is.
[0013]
[Means for Solving the Problems and Effects of the Invention]
  The present invention provides the following [1] to [3] Is described as follows.
[0014]
[1] Configuration 1
  A function of distributing karaoke data to each karaoke device via a network, and a server function of transmitting karaoke data according to the request to the requesting karaoke device via the network in response to a request from the karaoke device. A host device,
  A plurality of karaoke devices having a function of playing music in real time using karaoke data transmitted via a network in response to a request issued by the own device;
  A communication karaoke system comprising:
  At least a part of the plurality of karaoke devices has a server function karaoke provided with a server function for transmitting karaoke data relating to the request to the requesting karaoke device via a network in response to a request from another karaoke device. Device,
  The server-type karaoke device distributes information indicating the karaoke data that the own device can transmit at the time of start-up and information specifying the own device to each karaoke device, and from the own device when the power is turned off. With the function of distributing information indicating that it becomes impossible to transmit karaoke data to each karaoke device,
  Each of the plurality of karaoke devices receives information distributed from the server type karaoke device and updates information related to the server type karaoke device capable of requesting karaoke data.
  A communication karaoke system characterized by this.
[0015]
  According to Configuration 1, it is possible to provide a communication karaoke system that allows many communication karaoke apparatuses to perform in real time while downloading karaoke data without unnecessarily increasing the data transfer capability of the host device.
[0016]
[2] Configuration 2
  In configuration 1,
  The server-type karaoke device has a function of counting the time during which karaoke data can be transmitted to the requesting karaoke device in response to a request from another device, and transmits the counting result in response to a request from the host device. Has the function to
  The host device uses the counting result in a billing process for the server-type karaoke device.
  A communication karaoke system characterized by that.
[0017]
  According to Configuration 2, the host device can total the time that each server-type karaoke device functions as a server and use it for the accounting process.
[0018]
[3] Configuration 3
  In Configuration 1 or Configuration 2,
  The server type karaoke device has a function of counting the number of times karaoke data is transmitted to a requesting karaoke device in response to a request from another device, and a function of transmitting the counting result in response to a request from the host device. Have
  The host device uses the counting result in a billing process for the server-type karaoke device.
  A communication karaoke system characterized by that.
[0019]
  According to Configuration 3, the host device can total the number of times each server-type karaoke device functions as a server and use it for billing processing.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.
[0034]
With reference to the figure which showed the network structure of the communication karaoke system of FIG. 1, the outline of the communication karaoke system by embodiment of this invention is demonstrated. The communication karaoke system 100 includes a host server 10, a broad network 20, and communication karaoke apparatuses 30 and 50. The host server 10 transmits karaoke data composed of music data and background moving image (still image) video data to karaoke data 30a, 50a, 30b, 50b,. It has the function to deliver. The online karaoke apparatus includes a device 50 including a hard disk device 54 and a device 30 not including a hard disk device.
[0035]
The communication karaoke apparatus 50 having a hard disk has a function of recording a part of karaoke data in the hard disk apparatus 54 according to settings (details will be described later) among music data and background video data distributed from the host server 10. . Moreover, the communication karaoke apparatus 50 has a part of function of the host server 10 which receives the request | requirement of karaoke data ((transmission request | requirement of karaoke data)) from the other communication karaoke apparatuses 30 and 50, and transmits applicable karaoke data. .
[0036]
The communication karaoke apparatus 30 not equipped with a hard disk makes a request to the host karaoke apparatus 50 or the communication karaoke apparatus 50 equipped with a hard disk, and realizes a karaoke function by reproducing and playing the transmitted karaoke data in real time.
[0037]
FIG. 2 is a diagram showing the flow of karaoke data in the communication karaoke system of the present invention, and the direction of the arrow indicates the direction of the flow of karaoke data.
[0038]
3 shows a block configuration diagram of the communication karaoke apparatuses 30 and 50, FIG. 3A is a block configuration diagram of the communication karaoke apparatus 50 including the hard disk device 54, and FIG. 3B includes a hard disk device 54. It is a block block diagram of the communication karaoke apparatus 30 which is not.
[0039]
In the figure, 31 and 51 are connected to the communication karaoke apparatuses 30 and 50 and the broadband network 20. It is an I / F circuit that transmits and receives data, and a communication interface unit that transmits and receives music and background image data, and exchanges control database information with other devices and the host server 10.
[0040]
Reference numerals 32 and 52 denote CPUs (control units) that control the entire communication karaoke apparatuses 30 and 50.
[0041]
Reference numerals 33 and 53 denote buffers that hold data received from the communication I / F.
[0042]
Reference numeral 54 denotes a hard disk device in which karaoke data is recorded. The karaoke data assigned in the karaoke data distributed from the host server 10 is stored in the hard disk device 54. In response to requests from other communication karaoke apparatuses 30 and 50, the karaoke data stored in the hard disk device 54 is transmitted to the requested communication karaoke apparatus.
[0043]
Reference numerals 35 and 55 denote user interface units that perform input / output with a user such as a front panel and a remote controller.
[0044]
Reference numerals 36 and 56 denote MPEG decoder units that demodulate transmitted music data and background moving image video data into audio and video.
[0045]
Reference numerals 37 and 57 denote graphic controller units for superimposing the background moving image when the background moving image is demodulated by the MPEG decoder units 36 and 56 and the lyrics data is demodulated by the CPUs 32 and 52, respectively.
[0046]
Reference numerals 38 and 58 denote sound system units for mixing the signals demodulated into audio by the MPEG decoding units 36 and 56 with a microphone or outputting them to a speaker. If the signals demodulated by the MPEG decoder units 36 and 56 are composed of a plurality of channels, they have a function of mixing them according to the settings of the user I / F units 35 and 55.
[0047]
Reference numerals 39 and 59 denote display devices for displaying background moving image images, lyrics information, new song information, and the like. Reference numerals 40 and 60 denote amplifiers, and 41 and 61 denote audio microphones.
[0048]
Next, a method for managing karaoke data recorded in the hard disk device of the communication karaoke device 50 with a hard disk device will be described.
[0049]
In the communication karaoke system of the present invention, even if the host server 10 that does not have sufficient data transfer capability for the number of connected communication karaoke apparatuses is employed, each communication karaoke apparatus is capable of karaoke data (music data, background video image). ) To download and play in real time, some of the communication karaoke devices are equipped with a hard disk device, and the karaoke data is divided and recorded on the hard disk devices of a plurality of communication karaoke devices A part of the function of the host server 10 is a communication karaoke device with a hard disk device so that karaoke data can be transmitted from the communication karaoke device in which the corresponding karaoke data is recorded in response to a request from another communication karaoke device. 50.
[0050]
Accordingly, how the karaoke data is divided and recorded in the communication karaoke device 50 with hard disk, and the request is transmitted to the host server 10 or another communication karaoke device 50 with hard disk device that records karaoke data. In the present invention, management is performed according to the management method described below.
[0051]
The communication karaoke apparatus 30.50 connected to the broadband network 20 can uniquely identify the communication karaoke apparatus by a network address (IP address) or a network I / F address number (MAC (Media Access Control) address). Such a management serial number is always added. The communication karaoke device 50 with a hard disk uses the serial number so that the karaoke data to be recorded in the hard disk device can be identified from the karaoke data distributed from the host server 10.
[0052]
Specifically, the communication karaoke apparatus 50 with an odd serial number records karaoke data with an odd music number and a background video number. In this method, for example, the communication karaoke device 50 with a hard disk with an odd serial number is a karaoke to be recorded by the device itself when the music number and background video number of the karaoke data distributed from the host server 10 are odd. The karaoke data is recorded on the hard disk device 54 as data. If the user inputs a request and the song number of the requested song is an odd number, the karaoke data should be recorded in the own hard disk device 54. The karaoke data is reproduced. When the music number of the requested music is an even number, a request is made to the communication karaoke apparatus 50 having the nearest serial number. The other communication karaoke apparatus 50 that has received the request reads out the corresponding karaoke data from the hard disk device 54 and transmits it to the requesting communication karaoke apparatus.
[0053]
Next, another management method will be described. Specifically, in a network system in which consecutive serial numbers are assigned to a communication karaoke device and managed, for example, when the serial number is composed of 6 digits, the last digit of the serial number (for example, The karaoke data to be recorded on the hard disk device 54 can be specified by the last 4 digits). The upper two digits of the serial number are grouped and recorded in the same communication karaoke apparatus 50. For example, the music number 121001 and the music number 131001 are recorded in the terminal having the network address xx1001. XX may be any number as long as it is a number assigned with the serial number of the communication karaoke apparatus.
[0054]
Since the karaoke data to be recorded by the communication karaoke apparatus 50 is ruled in this way, the host server 10 can simultaneously send new song data to all terminals even when a new song is released and distribution is necessary. By distributing, each communication karaoke device can discriminate karaoke data to be recorded in accordance with its own serial number and record it on the hard disk device.
[0055]
Next, still another management method will be described. Here, when the communication karaoke apparatus 50 is timely (such as when it is started up), the information of the karaoke data stored in its own hard disk apparatus 54 (data number of karaoke data that can be distributed to other communication karaoke apparatuses 30 and 50). It is set as the structure distributed to distribute to the other communication karaoke apparatuses 30 and 50 and the host server 10. FIG.
[0056]
FIG. 4 is a diagram showing a data format to be distributed, and is composed of a terminal ID 70, a command 71, and information 72 to be distributed. The terminal ID is the network number (serial number) of the communication karaoke device with a hard disk device storing karaoke data, and the command is the type of information to be distributed (the song number of the karaoke data held, the background video image number / owned The additional information of the music number to be played / background moving image video number / operating state information (ON / OFF information) of the communication karaoke apparatus is shown. For example, if there are 20,000 karaoke songs, the karaoke data information held is set to 1 with the bit corresponding to the recorded song number set to 1 using a bit string record of 20,000 bits. The bit corresponding to the number can be managed by setting it to 0, and the background moving image number can also be managed in the same manner.
[0057]
When the host server 10 releases / distributes new karaoke data (music data / background moving image video / music data & background moving image video) to the communication karaoke device 50, the host server 10 uses the broadband network 20 to which the communication karaoke device 50 is connected. Configuration and load of the broad network 20 to which the communication karaoke device 50 is connected (in a large city to which a large number of communication karaoke devices 30 and 50 are connected, a large number of communication karaoke devices 50 that record data are required. ), Which karaoke data is recorded in which communication karaoke apparatus 50 is determined.
[0058]
When the karaoke data on which the karaoke data is newly distributed is recorded on the hard disk device 54, the communication karaoke apparatus 50 transmits the song information that can be newly distributed from the self apparatus to the other communication karaoke apparatuses 30 and 50. To deliver.
[0059]
When the power of the communication karaoke apparatus 50 is turned off, the data format shown in FIG. 4 is used, and the fact that the karaoke data cannot be transmitted is transmitted to the other communication karaoke apparatuses 30 and 50. .
[0060]
The other communication karaoke apparatuses 30 and 50 have a management table indicating which communication karaoke apparatus 50 holds the karaoke data, and the karaoke data information held (distributable) from the other communication karaoke apparatus 50 is stored. When received, the management table is updated. In addition, when information indicating that another online karaoke apparatus 50 that holds a certain song has been turned off is received, the other online karaoke apparatus 50 is inquired as to whether or not it has the required karaoke data. The karaoke data that cannot be distributed from another online karaoke apparatus due to power OFF or the like is managed in a table so that a request is sent to the host server 10.
[0061]
Moreover, the transmission timing of the karaoke data information which it owns is not restricted to a starting time, It is good also as a structure which transmits regularly in response to a transmission request | requirement as a structure which transmits regularly. In addition, it is good also as a structure which updates a table, assuming that the other communication karaoke apparatus to which karaoke data information is not sent is turned off.
[0062]
As described above, the communication karaoke device 50 with a hard disk device has a function as the host server 10 and the communication karaoke device 50 distributes karaoke data to other communication karaoke devices, thereby enabling small data transfer. Even if the capacity host server 10 is adopted, the communication karaoke system can be operated without any trouble. This communication karaoke system purchases or leases a communication karaoke apparatus 50 with a hard disk to a karaoke shop owner or the like. It is premised that the number of online karaoke devices with hard disk devices will be increased.
[0063]
However, the communication karaoke device 50 with a hard disk device is larger and higher in size, power consumption, and unit price of the device than the communication karaoke device 30 without a hard disk device, and is not advantageous as an owner of the communication karaoke device, so it is avoided. It is expected that. If the communication karaoke device 50 with a hard disk device having the functions of the host server 10 does not progress, it is necessary to increase the data transfer capability of the host server 10, and the initial investment and maintenance management of the host server 10 are large in cost. Therefore, unless the usage fee for the online karaoke system is set high, the system cannot be operated. Furthermore, even if the owner of the communication karaoke apparatus installs the communication karaoke apparatus 50 with a hard disk device, there is no point in installing it unless the power is always turned on.
[0064]
Therefore, in the present invention, the communication karaoke device 50 with a hard disk device and the communication karaoke device without a hard disk device and the hard disk device-less communication karaoke device are provided in order to popularize the communication karaoke device 50 with a hard disk device and to turn on the power when not in use. As a configuration for differentiating in terms of functions and fees, a system in which the communication karaoke device 50 with a hard disk device is widely used is adopted.
[0065]
The owner who has selected the communication karaoke device 50 with the hard disk device needs to pay a higher purchase fee or lease fee than the owner who has selected the communication karaoke device 30 without the hard disk device. It is possible to promote the spread of the communication karaoke device 50 with a hard disk device and realize the communication karaoke system at a low usage fee by providing a mechanism that provides the owner of the communication karaoke device 50 with a hard disk device to a higher profit. it can.
[0066]
This is realized by the following mechanism.
[0067]
First, a mechanism for providing a difference in usage charges between the communication karaoke apparatus 50 with a hard disk and the communication karaoke apparatus 30 without a hard disk apparatus will be described. In this case, the usage fee of the communication karaoke device 50 is configured so that the usage fee is further reduced by the energization time (time when the power is turned on) and the number of times the karaoke data is provided to other communication karaoke devices. .
[0068]
Specifically, the communication karaoke device 50 with a hard disk device stores its own operation information (ON / OFF) and the number of transmissions to the other communication karaoke devices 30 and 50. When the host server 10 charges the usage fee, the host server 10 requests each communication karaoke device 50 to transmit the operation information and the number of transmissions. Based on the collected information, the host server 10 determines the usage fee of each communication karaoke device 50. Determine the discount rate. The discount rate with respect to the operation time is maximum when it is always ON. However, when there is a very high operation rate throughout the year, the discount rate may be set to a larger upper limit year by year. Also, the discount based on the number of transmissions is set so that the discount rate increases as the number of transmissions increases.
[0069]
Secondly, a mechanism for making a difference in performance between the communication karaoke apparatus 50 with a hard disk and the communication karaoke apparatus 30 without a hard disk apparatus will be described.
[0070]
Specifically, the communication karaoke device has a function that can set a time (performance preparation time) from when a request is made to when the performance is started. This communication preparation karaoke device is provided with a hard disk device. The time of 50 is set shorter than the communication karaoke apparatus 30 without a hard disk device.
[0071]
When making a request, the communication karaoke apparatus transmits the set performance preparation time information to the other communication karaoke apparatus 50 together with the request. The other communication karaoke apparatus 50 starts transmitting karaoke data in time for the performance preparation time. Therefore, if the karaoke data transmission request conflicts, the request request from the communication karaoke apparatus 50 with the hard disk device is processed with priority.
[0072]
Furthermore, it can also be set as the structure which makes a difference in the number of the background moving image images which can be displayed between the communication karaoke apparatus 50 with a hard disk, and the communication karaoke apparatus 30 without a hard disk apparatus. Specifically, information indicating whether or not the communication video karaoke device without a hard disk device can be used is added to the background video image information, and whether or not the requested communication karaoke device is a communication karaoke device with a hard disk device is determined. The communication karaoke device that has received the request selects the background video image to be transmitted based on the information indicating whether or not the device has a hard disk device. Configure to deliver.
[0073]
Thirdly, the communication karaoke device 50 with a hard disk can be used to set the warranty period and maintenance fee of the communication karaoke device 50 with a hard disk at a lower price than the communication karaoke device 50 without a hard disk, or the repair fee when the communication karaoke device is broken. Can be configured to be set at a low price.
[0074]
Fourth, make a difference with the release of new songs. That is, a mechanism for enabling the online karaoke apparatus 50 with a hard disk device to sing a new song earlier will be described.
[0075]
Specifically, there is new song information distributed from the host server 10 to each communication karaoke device, but this information is information displayed on the screen of the communication karaoke device when the song is not being played, The displayed information includes date information (release date) at which the song can be sung and a song number for making a request. The music number is controlled so as not to be displayed on the screen before the date when the song can be sung, and the music number is displayed on the screen only after the date of the release date. For example, if it is a song released on April 1, only the information “April 1 release” is displayed before April 1, but the song number for requesting is not displayed. After the date, the music number will be displayed. The release date is displayed differently between the communication karaoke apparatus 50 with the hard disk device and the communication karaoke apparatus 30 without the hard disk device. As a different mechanism, the setting of the communication karaoke apparatus 30 without a hard disk device is changed so that the date of the release date information of the distributed new song information is added and changed for several days. Thereby, the date of the release date displayed on the communication karaoke device 30 without the hard disk device is changed to a date several days after the communication karaoke device 50 with the hard disk device, and the music number display is also the release after the change. It is postponed until the day is reached.
[0076]
Note that the release date of the communication karaoke apparatus 50 with the hard disk device can be configured to stop as soon as possible.
[0077]
Fifth, a mechanism for displaying an advertisement only on a communication karaoke apparatus without a hard disk device will be described. Specifically, even if there are continuous requests, in the case of a communication karaoke apparatus without a hard disk device, the performance of the next song is not started unless an advertisement is displayed for each song or every predetermined song. That is, the hard disk device-less communication karaoke apparatus 30 accesses the host server 10 every time one or a predetermined number of songs are completed, and makes a transmission request for advertisement information. The host server 10 receives the advertisement transmission request and transmits the advertisement, and the communication karaoke apparatus 30 displays the transmitted advertisement on the screen in real time. It performs with respect to the communication karaoke apparatus 50. FIG.
[0078]
It is also possible to adopt a configuration in which the background moving image is displayed as an advertisement. In this case, the communication karaoke apparatus 50 that has received the request selects and transmits an advertisement as a background video image.
[0079]
In the above embodiment, the hard disk device is adopted as the storage means for storing the karaoke data. However, the present invention is not limited to this, and a memory such as an optical disk, MD, or semiconductor memory may be used as long as the storage means replaces the hard disk device. .
[0080]
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and is intended to include meanings equivalent to the scope of claims for patent and all modifications within the scope.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a network configuration of a communication karaoke system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a flow of karaoke data in the communication karaoke system in FIG. 1;
3 is a block configuration diagram of the communication karaoke apparatuses 30 and 50. FIG.
FIG. 4 is a diagram showing a data format to be distributed.
[Explanation of symbols]
100 online karaoke system
10 Host server
20 Broadband network
30 Communication karaoke machine without hard disk device
31 Communication interface
32 CPU
33 buffers
35 User I / F
36 MPEG decoder section
37 Graphic controller
38 Sound system
39 Display device
40 speakers
41 microphone
50 Online karaoke equipment with hard disk drive
51 Communication interface
52 CPU
53 buffers
54 Hard disk devices
55 User I / F
56 MPEG decoder section
57 Graphic controller
58 Sound System
59 Display device
60 speakers
61 Microphone
70 Terminal ID
71 commands
72 Information to be distributed

Claims (3)

A function of distributing karaoke data to each karaoke device via a network, and a server function of transmitting karaoke data according to the request to the requesting karaoke device via the network in response to a request from the karaoke device. A host device,
A plurality of karaoke devices having a function of playing music in real time using karaoke data transmitted via a network in response to a request issued by the own device;
A communication karaoke system comprising:
At least a part of the plurality of karaoke devices has a server function karaoke provided with a server function for transmitting karaoke data relating to the request to the requesting karaoke device via a network in response to a request from another karaoke device. Device,
The server-type karaoke device distributes information indicating the karaoke data that the own device can transmit at the time of start-up and information specifying the own device to each karaoke device, and from the own device when the power is turned off. With the function of distributing information indicating that it becomes impossible to transmit karaoke data to each karaoke device,
Each of the plurality of karaoke devices receives information distributed from the server type karaoke device and updates information related to the server type karaoke device capable of requesting karaoke data.
A communication karaoke system characterized by this. In claim 1,
The server-type karaoke device has a function of counting the time during which karaoke data can be transmitted to the requesting karaoke device in response to a request from another device, and transmits the counting result in response to a request from the host device. Has the function to
The host device uses the counting result in a billing process for the server-type karaoke device.
A communication karaoke system characterized by that. In claim 1 or claim 2,
The server type karaoke device has a function of counting the number of times karaoke data is transmitted to a requesting karaoke device in response to a request from another device, and a function of transmitting the counting result in response to a request from the host device. Have
The host device uses the counting result in a billing process for the server-type karaoke device.
A communication karaoke system characterized by that.

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