JPH08214090A - Information providing system - Google Patents

Abstract

PURPOSE: To evade the loss of an information provider by inhibiting the use of the information distributed via a communication network even if the information is stolen. CONSTITUTION: The ciphering music data transmitted from a music data distributor 2 is stored in a hard disk 34. The access information including the decoding program corresponding to the access level set to the enciphered music data is received by a central controller 31 from a program distributor 3 through a second communication controller 33 via a charging communication network 7 and the access information is temporarily stored in the hard disk 34. The central controller 31 reads the decoding program corresponding to the ID number of the enciphered music data from the hard disk 34, decodes the enciphered music data by using this decoding program and makes the data KARAOKE music data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information providing system including an information processing apparatus capable of executing a predetermined process using stored real information and an information providing apparatus for providing information to the information processing apparatus. Regarding

[0002]

2. Description of the Related Art Conventionally, an information storage means for storing information,
There is an information processing apparatus that has an information processing execution unit that can execute a predetermined process using this information and a communication unit that can access the communication network. Examples thereof include a karaoke device for performing karaoke performance using song data, and a video game machine for executing a video game using similarly received game software.

Further, in the case of an information processing apparatus which uses distributed information, not limited to these karaoke apparatus and video game machine, usually, an information fee is charged each time information such as song data is received or used. Imposed.

[0004]

However, information such as music data distributed via a communication network is not always stolen from the communication network. Since the use of stolen information impairs the profit that the information provider should originally obtain, measures against such information theft have been demanded.

According to the present invention, even if the information distributed through the communication network is stolen, its use is not permitted.
Gains from information theft = aiming to avoid loss of information providers.

[0006]

As a means for solving the above-mentioned problems, the information providing system according to claim 1 executes information processing means for storing actual information and predetermined processing using said actual information. An information processing apparatus having a possible information processing execution means, a first communication means accessible to a first communication network, and a second communication means accessible to a second communication network; An information providing system including a communication network and an information providing apparatus for providing information to the information processing apparatus via the second communication network, wherein actual information is encrypted by the information providing apparatus according to an encryption program. An information encrypting unit that uses encrypted information, an information transmitting unit that transmits the encrypted information via the first communication network, and a decryption program for decrypting the encrypted information via the second communication network. To send And a cryptographic information obtained by accessing the first communication network by the first communication means to the second communication network by the second communication means. Decoding means is provided for decoding according to the decoding program that is accessed and acquired to obtain the actual information.

An information providing system according to a second aspect is the information providing system according to the first aspect, wherein the second communication network is a billing communication network having a billing function, and the information providing device includes the decryption program. It is characterized in that a billing request means for requesting the billing communication network to carry out a billing process corresponding to the price of transmission is provided.

An information providing system according to a third aspect is the information providing system according to the first or second aspect, wherein the information providing device stores access level storage means for storing an access level of the actual information in the access level. An encryption program storage means for storing a corresponding encryption program and a decryption program storage means for storing a decryption program corresponding to the access level are provided, and the information encryption means is provided for the access level of the actual information. Is a configuration for encrypting the actual information according to the encryption program corresponding to the above to obtain encrypted information, and the information transmitting means is configured to transmit the access level corresponding to the encrypted information together with the encrypted information. , The program transmission means is configured to access the access level transmitted from the information processing device. Characterized in that it is configured to transmit a corresponding said decryption program.

[0009]

In the information providing system having the above-mentioned structure, the information storage means provided in the information processing device stores actual information, and the information processing execution means uses the actual information to perform a predetermined process. The first communication means can access the first communication network, and the second communication means can access the second communication network.

The information providing device provides information to the information processing device via the first communication network and the second communication network. The information encryption means provided in this information providing apparatus encrypts the actual information according to the encryption program to obtain the encrypted information, the information transmission means transmits the encrypted information through the first communication network, and the program transmission means A decryption program for decrypting the encrypted information is transmitted via the second communication network.

On the other hand, the decryption means provided in the information processing apparatus accesses the second communication network by the second communication means with the cryptographic information obtained by accessing the first communication network by the first communication means. Then, it is decrypted according to the decryption program acquired to obtain actual information. This actual information is used by the information processing execution means as described above.

[0012] Instead of the actual information, encrypted information obtained by encrypting this is transmitted and received, and decrypted by a decryption program transmitted and received separately. Even if the cryptographic information is stolen, it cannot be used as it is. Moreover, since the first communication network transmits and receives the encryption information and the second communication network transmits and receives the decryption program,
The chances of both the cryptographic information and the decryption program being stolen are extremely small. Therefore, even if the cryptographic information distributed via the communication network is stolen, its use is extremely difficult, and the gain = the loss of the information provider due to the information theft can be avoided.

In the information providing system according to the second aspect, the second communication network is a charging communication network having a charging function, and the charging requesting means provided in the information providing apparatus corresponds to the price for transmitting the decryption program. The charging communication network is requested to the charging communication network. Each time the decryption program is transmitted, the price can be charged to, for example, the user of the public telephone line to which the information processing device is connected (line use contractor),
It can be collected by proxy together with telephone charges.
Since you can charge for the transmission of the decryption program required to use the actual information, you can collect the information usage fee (more precisely, the decryption program provision fee) reliably and without the need for manpower for collection. .

In the information providing system according to the third aspect, the access level storage means provided in the information providing device stores the access level of the actual information, and the encryption program storage means stores the encryption program corresponding to the access level. And the decryption program storage means stores the decryption program corresponding to the access level. further,
The information encryption means encrypts the real information into encrypted information according to an encryption program corresponding to the access level of the actual information, and the information transmitting means transmits the access level corresponding to the encrypted information together with the encrypted information, The program transmission means transmits the decryption program corresponding to the access level transmitted from the information processing device.

Since there is an encryption / decryption program for each access level of actual information, even if a decryption program of a certain access level is stolen, the encrypted information obtained by encrypting the actual information of another access level remains. It will not be decrypted. As described above, it is extremely difficult to steal both the cryptographic information and the decryption program, and the stolen one decryption program cannot decrypt the cryptographic information at other access levels. Security is even higher.

Further, since the amount of consideration can be different for each decryption program corresponding to each access level, the information usage fee (more accurately, the decryption program providing fee).
Can be variously set according to the type of actual information.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a karaoke song information providing system of an embodiment, and FIG. 2 is a song data creating device, a song data distributing device, and a song data distributing device which constitute an information transmitting side in the system and constitute a mechanism corresponding to the information providing device of the present invention. FIG. 3 is a block diagram showing a configuration of a program distribution device, and FIG. 3 is a block diagram showing a configuration of a karaoke device which is an information receiving side in the system and corresponds to the information processing device of the present invention.

As shown in FIG. 1, this karaoke piece information providing system includes a piece data creating apparatus 1 and a piece data distribution apparatus 2.
And the program distribution device 3 are connected to each other, a plurality of karaoke devices 10 are connected to the song data distribution device 2 via the information communication network 5, and each karaoke device 10 is connected to the program distribution device 3 via the charging communication network 7. Configured to be connected to.

As shown in FIG. 2, the music data creating apparatus 1
Is composed of a data creation unit 8 and a monitoring terminal 11. The data creation unit 8 includes a computer 12 as a control unit, a storage device 14, and a communication control device 15,
The storage device 14 and the communication control device 15 are the computer 1
Connected to 2.

The storage device 14 stores various control programs for operating the computer 12, karaoke song data, an access level of the karaoke song data, an encryption program for encrypting the karaoke song data, and respective encryption programs. It is for storing a corresponding decoding program and the like.

The karaoke piece data for one piece of music is composed of piece number information which is identification information for identifying pieces of the piece, an ID number corresponding to an access level, and substance information. The entity information in this is MI which is the information of the accompaniment music.
It may include performance information and lyrics information of the DI (Musical Instrument Digital Interface) standard, and may also include background video information in which video information corresponding to each song is encoded.
In addition, the access level (ID number) can be set for each song, for example, the year in which the song is announced, the genre of the song, each singer or group, the popularity of the song or singer or group, the new song and other songs. It is optional to classify it into an appropriate group and set it for each group.

A plurality of types of encryption programs are stored in the storage device 14 corresponding to the above access levels, and the computer 12 reads the encryption program from the storage device 14 based on the ID number of the karaoke piece data. According to the above, the substantive information part of the karaoke piece data can be encrypted into encrypted information.

The computer 12 also provides the encrypted music data composed of the encryption information, the music number information and the ID number, the decryption program corresponding to the encryption program used for the encryption, the music number information and the ID number. You can build access information consisting of. Further, the computer 12 can transmit the encrypted music piece data to the music piece data distribution device 2 and the access information to the program distribution device 3 via the communication control device 15. As is apparent from this, the computer 12 functions as the information encryption means of the present invention, and the storage device 14 corresponds to the access level storage means, the encryption program storage means, and the decryption program storage means according to claim 3. To do.

The monitoring terminal 11 includes a microcomputer 16 as a control means, a keyboard 17,
The computer 1 is equipped with a CRT 18, a printer 19, etc., and operates the monitoring terminal 11 via the keyboard 17.
Various commands and data can be input to the printer 2. For example, the data stored in the storage device 14 can be taken out and the printer 1
It can be printed or displayed on the CRT 18.

The song data distribution device 2 includes a computer 20, a storage device 21 and a communication control device 22 connected to the computer 20, as in the data creation section 8, and the computer 20 as a control means has the above-mentioned components. The monitoring terminal 23 similar to the monitoring terminal 11 is connected.

The communication control device 22 is connected to the communication control device 15 of the data creating section 8 via, for example, a LAN (local area network), and can send and receive data to and from each other. The storage device 21 is for storing various control programs and various data for operating the computer 20.

The computer 20 can store in the storage device 21 the encrypted music data transmitted from the data creating section 8 and received via the communication control device 22 as described above, and read from the storage device 21. The encrypted song data can be transmitted to the karaoke device 10 via the communication control device 22 and the information communication network 5. As is clear from this, the music piece data distribution device 2, particularly the computer 20 and the communication control device 22 incorporated therein function as the information transmission means of the present invention.

The program distribution device 3 also has a data creation unit 8
The music data distribution device 2 and the music data distribution device 2 have substantially the same structure.
Also, a communication control device 26 is built in, and a monitoring terminal 27 similar to the monitoring terminal 11 is connected to the computer 24. Further, the communication control device 26 is connected to the communication control device 15 of the data creating section 8 and the communication control device 22 of the music data distribution device 2, and can mutually send and receive data.

The storage device 25 is for storing various control programs and various data for operating the computer 24. The computer 24 is transmitted from the data creation unit 8 as described above, and the communication control device 2
It is possible to store the access information received via the storage device 25 in the storage device 25, and access the access information read from the storage device 25 to the communication control device 26 and the charging communication network 7.
Can be transmitted to the karaoke device 10 via. As is apparent from this, the program distribution device 3, particularly the computer 24 and the communication control device 2 built therein.
6 functions as the program transmission means of the present invention.

As will be described in detail later, when transmitting access information via the billing communication network 7, the billing process corresponding to the price preset corresponding to the access level (ID number) is billing communication. This is done by the charging function of the network 7. That is, the computer 24 and the communication control device 26
And function as the billing requesting means.

Here, the charging communication network 7 will be described. The charging communication network 7 has a function of charging for information charges, such as a videotex communication network or a dial queue to communication network. In Japan today, the videotex network and dial queue two network are known as the representative ones. The dial queue-to network is basically a time-based pay-as-you-go calculation, and the videotex network is capable of setting an arbitrary fee for each information content, and is used for so-called captain systems.

A videotex communication network will be described as an example of the charging function. Specifically, the videotex communication network is, for example, a public telephone line connected to each karaoke device 10 and a videotex communication processing device (VCP).
It consists of and. This VCP is a billing center of the public telephone line (currently, a public telephone line dialing a special number 166 and a 5-digit billing center number) trying to access the videotex communication network (in the present embodiment, the program distribution device 3 is (Corresponding to a billing center), management of information processing devices that are user terminals, subscriber management to billing centers, billing of communication charges and information usage fees collected by the telephone company, information processing It provides communication processing functions such as conversation control between the device and the billing center and conversion processing such as protocol conversion and code / pattern conversion.

Next, the structure of the karaoke apparatus 10 will be described. As shown in FIG. 3, the karaoke apparatus 10 has a CPU, a RAM, a ROM, etc., which are not shown, and serves as the core of the karaoke apparatus 10 and functions as an information processing execution means and a decoding means of the present invention. Corresponding to the first communication means of the first communication control device 32 for executing communication with the music data distribution device 2 via the information communication network 5.
A second communication control device 33 corresponding to the second communication means of the present invention and for executing communication with the program distribution device 3 via the billing communication network 7, and a song data distribution device corresponding to the information storage means of the present invention. The encrypted song data transmitted from the device 2 and the karaoke song data obtained by decrypting the encrypted song data are stored, and in addition to the operation program of the central control device 31 and the song data distribution device 2 and the program distribution device 3, individual communication is performed. A voice that functions as an information processing execution means of the present invention in cooperation with the hard disk 34 as a storage means for storing the password for identifying the karaoke apparatus 10 and the central control device 31 and converts digital data into an analog performance signal. A sound that is electrically amplified by the performance signal sent from the reproduction circuit 35 and the sound reproduction circuit 35 and that is input through the microphone 36. Mixing at moderate rate as, Mikisaanpu 38, the central control unit 3 for outputting to the speaker 37
1, a screen display control device 40 that functions as an information processing execution means of the present invention and synthesizes lyrics information with background image information and displays it on a television monitor 39 as a display means, input for inputting various instructions. A multipurpose input key 41 as a means is provided.

The hard disk 34 can store data for several thousand songs and can sequentially store the encrypted song data transmitted from the song data distribution device 2. The encrypted song data is as described above. Since it is encrypted in the data creation unit 8, it cannot be used as it is. In order to decrypt this and make it usable, it is necessary to connect to the billing communication network 7 through the second communication control device 33 and obtain access information including the decryption program from the program distribution device 3. is there. As described above, the access information is of no use unless it corresponds to the access level set in the encrypted music data to be decrypted.

Next, the reception of encrypted music data and the acquisition of access information used for its decryption will be described. First, the reception of encrypted music data will be described. In order to receive the encrypted music data, the music data distribution device 2 is requested to specify the encrypted music data of a specific music to be transmitted, or music other than the music already stored in the hard disk 34 is received. If there is (a so-called new song), various methods can be adopted such as sending the encrypted song data, but here, the song data receiving routine shown in FIG. 4 is taken as an example in which a new song is sent. Will be described with reference to. This music piece data receiving routine is repeatedly executed when the karaoke apparatus 10 is not being used for karaoke performance, in accordance with an appropriate timing such as every 24 hours or a command through the multipurpose input key 41.

As shown in FIG. 4, when the central control device 31 of the karaoke device 10 starts the music data receiving routine, first, the first communication control device 32 communicates with the music data distribution device 2 via the information communication network 5. Communication is started to inquire about the presence or absence of a new song (S101). Upon receiving this inquiry, the computer 20 of the song data distribution device 2 searches for a new song by referring to the latest song data information from the karaoke device 10 or a song sent table created for each karaoke device 10. , And sends an answer indicating whether or not there is a new song that has not been sent to the karaoke apparatus 10.

The central control unit 31 of the karaoke apparatus 10 is
Based on this answer, it is judged whether there is a new song (S
102), if there is no new song (NO in S102), this song data receiving routine is once ended. On the other hand, if there is a new song (YES in S102), the song data distribution device 2 is requested to transmit the encrypted song data of the new song (S10).
3).

Next, the central control unit 31 receives the encrypted music piece data transmitted from the music piece data distribution unit 2 in response to the request transmitted in S103, and transmits this to the hard disk 3
4 (S104), and the music piece data receiving routine ends. Next, regarding the processing relating to the decryption of the encrypted music data, FIG. 5 showing the decryption processing routine repeatedly executed by the central control device 31 when the karaoke device 10 is not used for karaoke performance, and the karaoke device 10 and the program distribution device 3. Description will be made with reference to FIG. 6, which shows a communication sequence executed between and.

As shown in FIG. 5, when the central processing unit 31 of the karaoke apparatus 10 starts the decryption processing routine, first, the encrypted music piece data that needs to be decrypted is the hard disk 34.
(S201). here,
If there is no encrypted music data on the hard disk 34 (S2
If NO at 01), the central controller 31 ends this routine.

If the encrypted music piece data is stored in the hard disk 34 (YES in S201), the central control device 31 requests the program distribution device 3 to transmit access information (S203). Subsequently, the central control device 31 receives the access information from the program distribution device 3 and stores it in the hard disk 34 (S204).

Regarding the processing of S203 to S204,
This will be described in detail with reference to FIG. First, the central controller 3
1 calls the program distribution device 3 via the accounting communication network 7 by the second communication control device 33. Subsequently, the central control device 31 waits for an incoming call to the program distribution device 3 and transmits a password for identifying the karaoke device 10.

In the program distribution device 3, when the password of the karaoke device 10 is received, the computer 24 verifies the terminal, and if the karaoke device 10 is registered in the program distribution device 3, the verification is normal and the password confirmation signal is returned. To do. When the password confirmation signal is received, the central control device 31 sends the ID number of the encrypted music data requiring the decryption program to request the transmission of the access information.

In the program distribution device 3, when the transmission request of the access information is received, the computer 24 reads out the access information having the same ID number as the ID number transmitted from the karaoke device 10 from the storage device 25. It transmits to the karaoke apparatus 10 through the communication control apparatus 26. At this time, since the access information is transmitted via the charging communication network 7, the karaoke apparatus 10 is connected by the charging function of the charging communication network 7 with a preset charge for the transmission of this access information. Is charged to the subscribers of the existing telephone line. This fee is collected by proxy together with the telephone line usage fee.

In other words, the central control unit 31 requests the program distribution unit 3 to transmit the access information and instructs the program distribution unit 3 to charge.
Means that at the same time as transmitting the access information, the charging communication network 7 is requested to perform the charging process.

When the central control device 31 receives the access information, it sends a communication disconnection request to the program distribution device 3. Upon receiving this request, the program distribution device 3 ends the communication with the karaoke device 10. Here, the description returns to the decoding processing routine shown in FIG.

The central control unit 31 uses S203 to S204.
The encrypted music data is decrypted using the decryption program acquired by the above and stored in the hard disk 34 to obtain karaoke music data (S205). Subsequently, the central controller 31 stores the karaoke piece data decoded as described above in the hard disk 34 (S206).
In this way, it is possible to play a new song in karaoke. continue,
The central controller 31 instructs the hard disk 34 to
The decryption program stored in the hard disk 34 is erased (S207).

Next, a karaoke performance by the karaoke device 10 will be briefly described. When the karaoke song data of the new song becomes available as described above (other than the new song is already available), the user operates the multipurpose input key 41 or a remote controller (not shown) to select the song to be sung. Then, the central control unit 31 executes a karaoke performance process according to a predetermined karaoke performance program.

The central controller 31 reads the performance information and lyrics information corresponding to the selected song from the hard disk 34, and transfers the performance information to the voice reproduction circuit 35 and the lyrics information to the screen display controller 40, respectively. Voice reproduction circuit 3
The performance information output to 5 is converted into an analog performance signal, then sent to a mixer amplifier 38 and electrically amplified, and is mixed with the user's singing voice input via the microphone 36 at an appropriate ratio. To be done. The mixed audio signal is output to the outside as a performance sound by the speaker 37.

On the other hand, the lyrics information output in synchronization with the performance information is combined (superimposed) with background image information supplied from an image source (not shown) such as a video disc player in the screen display controller 40. And is displayed on the television monitor 39. As a result, the lyrics telop is displayed on the TV monitor 39 in a state where the lyrics telop is combined with the background image.

As described above, in the karaoke piece information providing system of this embodiment, the song data distribution device 2 does not use the karaoke piece data that can be used as it is, but encrypts it by the data creating section 8. Send song data.
The program distribution device 3 transmits a decryption program necessary for decrypting the encrypted music piece data. And karaoke device 1
0 decrypts the encrypted music data received from the music data distribution device 2 using the decryption program included in the access information received from the program distribution device.

Even if the encrypted music data is stolen, it cannot be used as it is. Further, since the encrypted music piece data and the decryption program are transmitted and received separately in different communication networks, the possibility that both the encrypted music piece data and the decryption program will be stolen becomes extremely small. Therefore,
Even if the encrypted music data distributed via the information communication network 5 is stolen, its use is extremely difficult, and the gain = the loss of the information provider due to the information theft can be avoided.

Further, for example, the key data such as the descrambling key may be analyzed because the data amount is small, but in the case of the decoding program, the data amount is large and the analysis itself is difficult. The security is extremely high as compared with the case of using key data such as a descrambling key.

Moreover, since the decryption program is transmitted by the billing communication network 7, every time the decryption program is transmitted, the price is paid by the user of the public telephone line to which the karaoke apparatus 10 is connected (line use contract). Person) and can collect it together with the telephone charge. Since you can charge for the transmission of the decryption program required to decrypt the encrypted music data, you can secure the information usage fee (to be exact, the decryption program provision fee) and without the need for manpower for collection. Can be collected.

Furthermore, since there is an encryption / decryption program for each access level of karaoke piece data,
Even if the decryption program of a certain access level is stolen, the encrypted song data obtained by encrypting the karaoke song data of another access level will not be decrypted. As described above, it is extremely difficult to steal both of the encrypted music data decryption programs, and the stolen one decryption program cannot decrypt the encrypted music data of other access levels. , Security regarding actual information will be further enhanced. Also, since the amount of consideration can be different for each decryption program corresponding to each access level, the information usage fee (to be exact, the decryption program providing fee) varies depending on the genre of the karaoke song and the singer. Can be set to.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to such embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention. For example, in the embodiment, the music piece data creating apparatus 1, the music piece data distributing apparatus 2 and the program distributing apparatus 3 are provided separately, but it is also possible to combine these two or three parties into one unit. Further, the song data creation device 1, the song data distribution device 2, and the program distribution device 3 do not need to be installed collectively in the same building or the like, but may be installed in a distributed manner.

Further, in the embodiment, the karaoke piece data is stored in the karaoke device, but the access information is also stored in the hard disk or the like, or the karaoke piece is erased after being used once or a predetermined number of times. A configuration may be adopted in which both the information and the access information are deleted once or used a predetermined number of times.

Needless to say, the information processing device is not limited to the karaoke device of the embodiment.

[0058]

As described above, according to the information providing system of the first aspect, not the actual information but the encrypted information obtained by encrypting the encrypted information is transmitted and received, and decrypted by the decryption program transmitted and received separately. Even if the cryptographic information is stolen, it cannot be used as it is. Moreover, since the cryptographic information is transmitted and received by the first communication network and the decryption program is transmitted and received by the second communication network, the possibility that both the cryptographic information and the decryption program are stolen becomes extremely small. Therefore, even if the cryptographic information distributed via the communication network is stolen, its use is extremely difficult, and the gain = the loss of the information provider due to the information theft can be avoided.

Since a decryption program is required to decrypt the encrypted information, the security of the information is extremely high as compared with the security system using the key data such as the scramble processing and the descramble key. According to the information providing system according to claim 2, the price of each time the decryption program is transmitted, for example, the user of the public telephone line to which the information processing device is connected (line use contractor)
Can be charged, and it can be collected by proxy together with the telephone charge. Since you can charge for the transmission of the decryption program required to use the actual information, you can collect the information usage fee (more precisely, the decryption program provision fee) reliably and without the need for manpower for collection. .

According to the information providing system of the third aspect, since the encryption / decryption program exists for each access level of the actual information, even if the decryption program of a certain access level is stolen, another The encrypted information obtained by encrypting the actual information of the access level is never decrypted. As described above, it is extremely difficult to steal both the cryptographic information and the decryption program, and the stolen one decryption program cannot decrypt the cryptographic information at other access levels. Security is even higher.

Further, since the amount of consideration can be different for each decryption program corresponding to each access level, the information use fee (more precisely, the decryption program providing fee).
Can be variously set according to the type of actual information.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a karaoke piece information providing system according to an embodiment.

FIG. 2 is a block diagram showing configurations of a music data creating device, a music data distributing device, and a program distributing device, which are information distributing sides in the karaoke music information providing system of the embodiment.

FIG. 3 is a block diagram showing a configuration of a karaoke device which is a component of the karaoke piece information providing system of the embodiment.

FIG. 4 is a flowchart of a music piece data receiving routine executed by the karaoke apparatus of the embodiment.

FIG. 5 is a flowchart of a decryption processing routine executed by the karaoke device of the embodiment.

FIG. 6 is a sequence diagram of communication performed between the program distribution device and the karaoke device in the karaoke piece information providing system of the embodiment.

[Explanation of symbols]

1 ... Music data creating device (information providing device), 2 ... Music data distributing device (information transmitting means, information providing device), 3 ... Program distribution device (program transmitting means, information providing device), 5. ... Information communication network (first communication network), 7 ... Charging communication network (second communication network), 8 ... Data creation unit (information providing device), 10 ... Karaoke device (information) Processing device), 12 ... Computer (information encryption means), 14 ... Storage device (access level storage means, encryption program storage means, decryption program storage means), 20 ... Computer (information transmission means) ), 22 ... Communication control device (information transmitting means), 24 ... Computer (program transmitting means, billing requesting means), 26 ... Communication control device (program transmitting means, billing requesting means), 31. ..Central control unit (information processing execution unit, decryption unit), 32 ... First communication control unit (first communication unit), 33 ... Second communication control unit (second communication unit), 34 ... hard disk (information storage means), 35 ... audio reproduction circuit (information processing execution means), 40 ... screen display control device (information processing execution means).

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Claims (3)

[Claims] 1. An information storage unit for storing actual information, an information processing execution unit capable of executing a predetermined process using the actual information, and a first communication unit accessible to a first communication network. An information processing apparatus having a second communication unit accessible to a second communication network, and an information providing apparatus for providing information to the information processing apparatus via the first communication network and the second communication network. An information providing system including: an information encrypting unit that encrypts real information according to an encryption program into encrypted information, and transmits the encrypted information to the information providing apparatus via the first communication network. And an information transmission unit for transmitting the decryption program for decrypting the encryption information via the second communication network. First communication Decryption means for decrypting the encrypted information obtained by accessing the network according to the decryption program obtained by accessing the second communication network by the second communication means to obtain the actual information is provided. Characteristic information provision system. 2. The second communication network is a charging communication network having a charging function, and requests the information providing device to perform a charging process corresponding to the price of the decryption program transmission to the charging communication network. The information providing system according to claim 1, further comprising means. 3. The information providing device, access level storage means for storing an access level of the actual information, encryption program storage means for storing an encryption program corresponding to the access level, and corresponding to the access level And a decryption program storage unit for storing a decryption program for storing the decryption program, and the information encryption unit encrypts the real information according to the encryption program corresponding to the access level of the real information to obtain encrypted information. The information transmitting means is configured to transmit the access level corresponding to the cryptographic information together with the cryptographic information, and the program transmitting means sets the access level to the access level transmitted from the information processing device. The configuration according to claim 1, wherein the corresponding decryption program is transmitted. Is the information providing system described in 2.