JPH11175324A - Information processing apparatus, information processing method, and providing medium - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent installation of a version of an application program not supported by an OS, and to prevent installation of a version of an OS not supported by the application program. In a basic program or an application program, both the version and the version of the application program or the basic program that conforms to the basic program or the application program are described. Then, when upgrading the version of the application program, it is determined whether the version of the application program conforms to the version of the basic program and whether the version of the basic program conforms to the version of the application program. The application program is installed according to the determination result.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus, an information processing method, and a providing medium, and more particularly, to an information processing apparatus, an information processing method, and a method suitable for use when downloading and installing a computer program. Regarding the medium.

[0002]

2. Description of the Related Art In a computer, various application programs are generally executed under the control of a predetermined OS.

[0003]

By the way, an application program generally has a dependency on an OS.
It may not operate unless it is under a predetermined version of the OS. Therefore, when installing a certain application program, usually in the installer,
It is checked whether the application program is compatible with the OS already installed,
The application program is installed only when it is compatible, that is, only when the application program is of a version operable under the OS already installed on the computer.

[0004] More specifically, for example, the version of the application program is described in the application program, and the installer refers to the version described in the application program to make it compatible with the OS (OS compatibility). Is determined).

[0005] By the way, for example, there is a case where it is desired to rewrite an OS installed in a computer to another version. However, other versions of OS
Is installed, since it is not checked whether the OS is compatible with the already installed application program, after rewriting the OS,
In some cases, an application program that was executable before rewriting cannot be executed.

The present invention has been made in view of such circumstances, and when a computer program is installed (or downloaded), matching between the computer program and another computer program having a dependency relationship with the computer program is performed. By mutually confirming the characteristics, it is possible to prevent installation of a computer program that does not operate normally, and the like.

[0007]

According to the first aspect of the present invention, there is provided an information processing apparatus comprising: a second computer program having a dependency on the first computer program; a second computer program having a version compatible with the second computer program; And a processing unit for performing a process for describing both the version of the computer program and the version of the computer program.

[0008] The information processing method according to claim 2, wherein a version of the second computer program having a dependency relationship with the first computer program and a version of the first computer program compatible with the second computer program are provided. And a process for describing both.

According to a third aspect of the present invention, there is provided a recording medium comprising: a second computer program having a dependency on the first computer program; a version of the second computer program; and a version of the first computer program compatible with the second computer program. It is characterized by providing a description of both.

According to a fourth aspect of the present invention, there is provided an information processing apparatus comprising: determining whether a version of a second computer program having a dependency relationship with a first computer program conforms to a version of the first computer program; Determining means for determining whether the version of the first computer program is compatible with the version of the second computer program; capturing means for capturing the second computer program based on the determination result of the determining means; It is characterized by having.

According to a seventh aspect of the present invention, there is provided an information processing method comprising: determining whether a version of a second computer program having a dependency relationship with a first computer program conforms to a version of the first computer program; Determining whether the version of the first computer program is compatible with the version of the second computer program, and based on the determination result,
A second computer program is loaded.

[0012] In the information processing apparatus according to the first aspect, the processing means may include a second computer program having a dependency relationship with the first computer program, a version thereof, and a first computer program adapted to the second computer program. And a process for describing both the version of the computer program.

[0013] In the information processing method according to the second aspect, the version of the first computer program conforming to the second computer program may be added to the second computer program having a dependency relation with the first computer program. The processing for describing both the version and the version is performed.

According to a third aspect of the present invention, there is provided the second computer program having a dependency on the first computer program, a version of the second computer program, and a version of the first computer program compatible with the second computer program. And both are described.

[0015] In the information processing apparatus according to the fourth aspect, the determining means determines whether a version of the second computer program that is dependent on the first computer program matches a version of the first computer program. And determining whether or not the version of the first computer program is compatible with the version of the second computer program. The loading means determines the second computer program based on the determination result of the determination means. It is made to take in a program.

[0016] In the information processing method according to the present invention, it is determined whether or not the version of the second computer program having a dependency relationship with the first computer program conforms to the version of the first computer program. It is determined whether or not the version of the first computer program is compatible with the version of the second computer program, and the second computer program is loaded based on the determination result.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below, but before that, the correspondence between each means of the invention described in the claims and the following embodiments will be clarified. For this reason, the features of the present invention are described as follows by adding the corresponding embodiment (however, an example) in parentheses after each means.

That is, the information processing apparatus according to claim 1 is
An information processing apparatus for performing a process for providing a second computer program having a dependency relationship with a first computer program, the second computer program having a version and a second computer program compatible with the second computer program Processing means for performing a process of describing both the version of one computer program (for example, FIG.
, Etc.).

According to a fourth aspect of the present invention, there is provided an information processing apparatus for performing a process of loading a second computer program having a dependency relationship with the first computer program, wherein the version of the second computer program is: Determining means for determining whether the version of the first computer program is compatible with the version of the first computer program and determining whether the version of the first computer program is compatible with the version of the second computer program (for example, FIG. CPU (Central Processor) shown in 3
Unit) 26, and the processing steps S1 and S2 of the program shown in FIG. 4) and the capturing means (for example, CPU 26 shown in FIG. 3 and FIG. And the like (processing step S3 of the program shown).

According to a sixth aspect of the present invention, when the first and second computer programs are provided from a predetermined providing device, the version of the second computer program is the version of the first computer program. When the version does not match, or when the version of the first computer program does not match the version of the second computer program, a predetermined providing device requests a matching version of the first computer program. Requesting means (for example, the modem 28 shown in FIG. 3).

Note that, of course, this description does not mean that each means is limited to those described above.

FIG. 1 shows a broadcasting system to which the present invention is applied (a system refers to a system in which a plurality of devices are logically assembled, and it does not matter whether each component device is in the same housing or not). 1 shows a configuration example of one embodiment.

On the broadcast station side, the transmitting device 1 (providing device) converts digital video data and digital audio data as a program into, for example, MPEG (Movi).
ng Picture Experts Group) encoded and scrambled. Further, in the transmission device 1, an MP in which digital data as a program and other necessary data are arranged is arranged.
An EG transport stream (hereinafter, appropriately referred to as TS) is configured. For example, QPSK (Quadrature Phase)
Shift Keying) modulated.

Here, the data other than the data of the program arranged in the TS in the transmitting device 1 includes, for example, a computer program executed by the receiving device 5 on the user side. In the transmitting device 1, a TS in which data of, for example, six programs is multiplexed is configured for one transponder. Also, here, for transmitting the computer program, for example, one PID (Pack
et Identification).

In the transmitting device 1, the modulated signal obtained by modulating the TS is up-converted and transmitted as a radio wave from the antenna (parabolic antenna) 2.

The radio wave from the antenna 2 is received by the satellite 3 and transmitted after being subjected to amplification and other necessary processing by a transponder (not shown). The radio wave from the satellite 3 is received by an antenna (parabolic antenna) 4 on the user (viewer) side and down-converted, for example, into an IRD (Integrated Receiver and Decoder) or S
The data is supplied to a receiving device 5 such as a TB (Set Top Box).

In the receiving device 5, first, a signal from the antenna 4 is selected. That is, the satellite 3 generally has a plurality of transponders, and the antenna 4 receives radio waves transmitted from the plurality of transponders and downconverts them. Therefore, since the signal supplied from the antenna 4 includes signals from the plurality of transponders, the receiving device 5 selects, from the signals corresponding to the plurality of transponders, those corresponding to any one of the transponders. , According to the channel selection operation performed by the user.

Further, in the receiving device 5, the selected signal, that is, the QPSK-modulated signal is QPSK-demodulated, the resulting TS is descrambled, and the user-selected channel is selected from the descrambled TS. (Hereinafter, appropriately referred to as a TS packet) are extracted. Then, the data arranged in the TS packet is MPEG-decoded, and the resulting image is supplied to the monitor 6 and displayed (sound is output from a speaker (not shown)).

The receiving device 5 extracts the TS packet in which the computer program is arranged, and downloads and installs (takes in) the TS packet where necessary. The receiving device 5 executes the installed computer program to perform various processes. That is, thereby, in the receiving device 5,
For example, the above-described descrambling process, a process of acquiring a key used for the descrambling process, a process related to charging, and the like are performed as well as the control of each block constituting the receiving device 5.

Here, when descrambling is performed, the receiving apparatus 5 performs processing related to charging for viewing the program, that is, processing for creating a viewing history, for example, as necessary. The billing information obtained as a result of the processing is transmitted to the transmitting device 1 via, for example, the public network 7, and the transmitting device 1 performs billing based on the billing information.

Next, FIG. 2 shows a configuration example of the transmitting apparatus 1 of FIG.

The version information adding circuit 11 receives a basic program as a computer program to be delivered to the user and an application program.

Here, the application program is:
It has a dependency with the basic program and operates under the control of a predetermined version of the basic program.

In the present embodiment, the basic program is composed of two computer programs called a boot unit and a load unit. The boot unit is for performing basic control of a computer and other devices (here, the receiving device 5), and includes, for example, a BIOS (Basic
Input / Output System) and OS. The loading section is for installing a computer program, and corresponds to a so-called installer. Note that the load unit may be included in the application program.
In this case, the basic program is composed of only the boot unit. The version information adding circuit 11 includes a computer program (here, a basic program and an application program as described above).
Are input, for example, on a module basis.

The version information adding circuit 11 describes both the version and the version of the application program or the basic program compatible with the basic program or the application program in the basic program or the application program input thereto, respectively. The data is output to a MUX (multiplexer) 12.

The MUX 12 is a version information adding circuit 1
1 and the output of the scrambler 14 are multiplexed and T
S is configured to be supplied to the modulation circuit 15. The MPEG encoder 13 is supplied with digital video data constituting a general program and program data as digital audio data accompanying the digital video data. And the MPEG encoder 13
Is configured to MPEG-encode the program data input thereto and output it to the scrambler 14.
The scrambler 14 scrambles the output of the MPEG encoder 13 as necessary and supplies it to the MUX 12.

The modulation circuit 15 outputs the T
S is QPSK-modulated, for example, and the resulting modulated signal is output to the up-converter 16. The up-converter 16 up-converts the modulated signal from the modulation circuit 15 and supplies the modulated signal to the antenna 2.

The controller 17 controls each block constituting the transmitting apparatus 1 and also processes information supplied from the modem 18 and performs a process for charging for viewing of a program. The modem 18 is connected to the public network 7
, The accounting information transmitted from the receiving device 5 is received and supplied to the controller 17.

Next, the operation will be described.

The program data is input to the MPEG encoder 13, where it is MPEG-encoded and supplied to the scrambler 14. In the scrambler 14, MP
The output of the EG encoder 13 is scrambled, and the MUX
12 is supplied.

On the other hand, the version information adding circuit 11
A basic program or an application program to be delivered to the user is input. Then, the version information adding circuit 11 describes both the version and the version of the application program or the basic program that matches the basic program or the application program in the input basic program or application program, and outputs the version to the MUX 12. You.

More specifically, for example, when the boot section of the basic program is input, the version of the input boot section and the version of each of the load section or the application program compatible with the boot section are stored. Is described. Further, for example, when a load section of the basic program is input, the input load section describes its version and the version of each boot section or application program that matches the load section. Further, for example, when an application program is input, the version of the input application program and the versions of the boot unit or the load unit that match the application program are described.

Here, as described above, the information added to the computer program input thereto in the version information adding circuit 11 is hereinafter referred to as version information as appropriate.

In the MUX 12, the output of the version information adding circuit 11 and the output of the scrambler 14 are multiplexed to form a TS. This TS is supplied to the modulation circuit 15, where it is QPSK modulated. The resulting modulated signal is supplied to the antenna 2 via the up-converter 16 and transmitted as a radio wave.

When a request for establishing a communication link is received from the receiving device 5 via the public network 7, the request is received by the modem 18.
A communication link between the device and the receiving device 5 is established. Then, necessary data is exchanged between the transmitting device 1 and the receiving device 5. That is, for example, when billing information is transmitted from the receiving device 5, it is received by the modem 18 and supplied to the controller 17. In this case, the controller 17 calculates a fee for viewing the program based on the charging information.

Next, FIG. 3 shows a configuration example of the receiving device 5 of FIG.

The front end unit 21 is supplied with a down-converted signal received by the antenna 4. And the front end unit 21
A signal from the antenna 4 is received, a predetermined reception process is performed on the received signal, and the resulting TS
To a DMUX (demultiplexer) 22. DMUX 22 receives the T
A necessary TS packet is extracted by referring to a PID or the like from TS packets constituting S. Then, the T extracted in the DMUX 22
Of the S packets, those relating to general programs are supplied to a descrambler 23, and those relating to computer programs are supplied to an I / F (Interface) 25.

The descrambler 23 descrambles the program data arranged in (the payload of) the TS packet from the DMUX 22 as necessary, and supplies it to the MPEG decoder 24. The MPEG decoder 24 MPEG-decodes the output of the descrambler 23 and outputs the decoding result.

The I / F 25 receives the TS packet from the DMUX 22 and supplies the computer program arranged therein to the temporary buffer 29. The CPU 26 executes a computer program stored in the program memory 27,
The control of each block constituting the receiving device 5 and other various processes are performed. Program memory 2
7 is, for example, a flash memory or an HD (Hard Disk)
The CPU 26 stores a computer program to be executed.

Here, the program memory 27
It is assumed that a certain version of the basic program and an application program operable under the control of the basic program are already stored (installed).

The modem 28 controls communication with the transmitting apparatus 1 (modem 18) via the public network 7. The temporary buffer 29 temporarily stores a computer program supplied via the I / F 25. RAM (Random Access Memory)
Numeral 30 loads a computer program to be executed by the CPU 26 from among the computer programs stored in the program memory 27. That is, the CPU 26 reads out a computer program to be executed from the program memory 27, expands the program on the RAM 30, and executes the computer program.

The I / F 25, CPU 26, program memory 27, modem 28, temporary buffer 29,
The RAM 30 is mutually connected via a data bus, and data is exchanged between the RAM 30 and the data bus. The CPU 26 further includes a program memory 27, a temporary buffer 29,
M30 and an address bus.
An address for storing data or an address for reading data from the U26 to the program memory 27, the temporary buffer 29, and the RAM 30 is supplied through this address bus. Further, although not shown, the I / F 25 is also connected to a front-end unit 21, a descrambler 23, and an MPEG decoder 24 which constitute the receiving device 5, and
Commands and other data from the U 26 are supplied via the I / F 25.

In the receiving device 5 configured as described above,
When viewing a general program, the front end unit 21
In, a signal from the antenna 4 is received, and a received signal of a frequency band corresponding to the selected channel is selected by the user operating a remote controller (remote commander) not shown. Further, the front end unit 11 performs QPSK demodulation and other necessary processing on the selected received signal, thereby obtaining a TS,
It is supplied to the MUX 22. In the DMUX 22, a TS packet having a PID corresponding to the channel selected by the user is extracted from the TS supplied from the front end unit 21 and supplied to the descrambler 23. In the descrambler 23, the output of the DMUX 22 is descrambled and supplied to the MPEG decoder 24. In the MPEG decoder 24, the output of the descrambler 23 is
Decoded, thereby displaying the image of the program being broadcast on the channel selected by the user,
The corresponding audio is output.

The DMUX 22 also extracts, from the TS supplied from the front end unit 21, a TS packet having a PID assigned for distribution of a computer program. The computer program arranged in the TS packet is supplied to and stored in the temporary buffer 29 via the I / F 25.

When the computer program is stored in the temporary buffer 29, the CPU 26 develops the load section of the basic program stored in the program memory 27 on the RAM 30 and executes it. A process of downloading and installing the stored computer program (hereinafter, appropriately referred to as an installation process) is performed.

That is, the flowchart of FIG. 4 shows details of the installation process.

In the installation process, first, in step S1, the version of the computer program to be installed is added to version information described in another computer program having a dependency relationship with the version (hereinafter referred to as a dependent program as appropriate). It is determined whether or not they are compatible.

Here, in the present embodiment, for example, the boot section and the load section constituting the basic program and the application program have a mutual dependency. Therefore, when the boot unit is a computer program to be installed, the load unit and the application program are dependent programs. If the load unit is a computer program to be installed, the boot unit and the application program are dependent programs. Further, when the application program is a computer program to be installed, the boot unit and the load unit are dependent programs.

If it is determined in step S 1 that the version of the computer program to be installed conforms to the version information described in the dependent program, the process proceeds to step S 2, where the version of the dependent program is It is determined whether the version information described in the computer program conforms to the version information. In step S2, when it is determined that the version of the dependent program is compatible with the version information described in the computer program to be installed, that is, the version of the computer program to be installed and the version of the dependent program are different. If they match each other (if they match each other), the process proceeds to step S3, where the computer program to be installed is downloaded from the temporary buffer 29, and
7 and the installation process ends.

On the other hand, when it is determined in step S1 that the version of the computer program to be installed does not conform to the version information described in the dependent program, and in step S2, the version of the dependent program is When it is determined that the version does not conform to the version information described in the target computer program, in any case, the download and installation of the computer program to be installed is not performed, and the installation process ends (stops).

In step S3, the computer program to be installed is installed in the program memory 27, and at the same time, the version of the computer program that is different from the version of the computer program to be installed stored in the program memory 27 is Basically erased (eg overwritten).

When the computer program stored in the temporary buffer 29 is only one of the boot unit, the load unit, and the application program, only the computer program to be installed is replaced with the computer program to be installed. When the computer programs stored in the temporary buffer 29 are a plurality of boot units, load units, or application programs, each of the plurality of computer programs is executed as a computer program to be installed. Will be

Next, the installation process will be further described with reference to FIGS.

Now, in the program memory 27, for example,
It is assumed that a basic program (a boot unit and a load unit) and an application program are stored (installed) as shown in FIG.

Here, in the present embodiment, at the end of the boot unit, the version and the version of each of the load unit and the application program that match the boot unit are described. Similarly, version information is described at the end of the load section or the application program.

In the embodiment shown in FIG. 5, the version of the boot unit is 1.0, and the version of the load unit or the application program compatible with the version is 1.0.
It is 1.1 or more or 2.0 or more. The version of the load unit is 1.1, and the version of the boot unit or the application program compatible with the version is 1.0 or more or 1.3 or more.
Further, the version of the application program is 2.2, and the version of the boot unit or the load unit compatible with it is 1.0 or more or 1.1.

Therefore, the boot unit whose version is 1.0 is compatible with the load unit and the application program which request the boot unit of version 1.0 or more. Further, the load unit whose version is 1.1 is compatible with a boot unit or an application program that requires a load unit of version 1.1 or more or 1.1, respectively. Further, an application program whose version is 2.2 is:
It is compatible with a boot unit or a load unit that requires an application program of 2.0 or more or 1.3 or more, respectively. Therefore, in this case, the boot unit, the load unit, and the application program installed in the program memory 27 all operate normally.

As described above, in the program memory 27,
In a state where the boot unit, the load unit, and the application program are installed, for example, the load unit (FIG. 6A) and the application program (FIG. 6B) shown in FIG. It is assumed that the data is transmitted and stored in the temporary buffer 29 of the receiving device 5.

In this case, the loading process or the application program stored in the temporary buffer 29 is sequentially executed as a computer program to be installed.

That is, for example, first, the load section stored in the temporary buffer 29 is used as a computer program to be installed. In this case, for example, the boot program (FIG. 5) stored in the program memory 27 and the application program (FIG. 6B) stored in the temporary buffer 29 are the dependent programs.

Then, it is determined whether the computer program to be installed and the dependent program are compatible with each other.

That is, in this case, the temporary buffer 2
The version of the load unit (FIG. 6 (A)) stored in No. 9 is 1.2, and the version of the boot unit or application compatible with it is 0.8 or more or 1.3 or more, respectively. On the other hand, the version of the boot program (FIG. 5) stored in the program memory 27 or the version of the application program (FIG. 6B) stored in the temporary buffer 29 is 1.0 or 2. 3. Therefore, each of them is compatible with the load unit stored in the temporary buffer 29.

The version of the load unit, which is a dependent program and is compatible with the boot unit (FIG. 5) stored in the program memory 27, is 1.1 or more.
Therefore, the load unit (FIG. 6A) stored in the temporary buffer 29 whose version is 1.2 matches the boot unit (FIG. 5) stored in the program memory 27.

Further, the version of the load unit compatible with the application program (FIG. 6B) stored in the temporary buffer 29, which is a dependent program, is 1.1 or more. The load section (FIG. 6A) stored in the temporary buffer 29 is also the temporary buffer 2
9 (see FIG. 6).
(B)).

Therefore, the load section (FIG. 6A), which is a computer program to be installed, and the boot section (FIG. 5) or application program (FIG. 6B), which are dependent programs, are compatible with each other. Therefore, the load unit (FIG. 6A) stored in the temporary buffer 29 is transferred to the program memory 27 and installed.

Next, for example, the application program stored in the temporary buffer 29 is a computer program to be installed. in this case,
For example, the boot unit (FIG. 5) stored in the program memory 27 and the load unit (FIG. 6A) installed as described above are the dependent programs.

Then, it is determined whether the computer program to be installed and the dependent program are compatible with each other.

That is, in this case, the temporary buffer 2
9 (FIG. 6)
The version of (B)) is 2.3, and the version of the boot unit or application compatible with it is 1.0 or more or 1.1 or more, respectively. on the other hand,
The versions of the boot unit (FIG. 5) and the installed load unit (FIG. 6A) stored in the program memory 27, which are dependent programs, are 1.0 or 1.2, respectively. Therefore, each of them conforms to the application program stored in the temporary buffer 29.

The version of the dependent application program, which is compatible with the boot unit (FIG. 5) stored in the program memory 27, is 2.0
As described above, the load unit (FIG. 6A) stored in the temporary buffer 29 whose version is 2.3 conforms to the boot unit (FIG. 5) stored in the program memory 27. I do.

Furthermore, the version of the application program that is compatible with the already installed load unit (FIG. 6A), which is the dependent program, is 1.3 or more, and therefore, the version is 2.3. The application program (FIG. 6B) stored in the temporary buffer 29 conforms to the already installed load unit (FIG. 6A).

Therefore, the application program (FIG. 6) which is the computer program to be installed
(B)) and the boot program (FIG. 5) or the load program (FIG. 6A), which are dependent programs, are compatible with each other. Therefore, the application program (FIG. B)) is transferred to the program memory 27 and installed.

As described above, when a computer program is downloaded and installed, the compatibility between the computer program and another computer program having a dependency on the computer program is mutually confirmed. It is possible to prevent download and installation of a computer program that does not operate.

If the version of the computer program to be installed does not conform to the version of the dependent program, or if the version of the dependent program does not conform to the version of the computer program to be installed, the transmitting apparatus 1 For example, it is possible to request a version of the dependent program compatible with the computer program to be installed. This request is sent, for example, by the CPU 26
Under the control of the modem 28.
In this case, the transmitting device 1 may transmit the requested computer program via the satellite 3 or via the public network 7.

Further, when the computer program is configured to be so-called upper compatible,
The installation of the computer program to be installed can be permitted only if the version is newer than the already recorded version of the corresponding computer program. In this case, only the version of the computer program need be described, and there is no need to describe the version of the dependent program that matches the version.

The scope of application of the present invention is not limited to the receiving apparatus for receiving digital satellite broadcasts as shown in FIG. 1, but can be applied to any apparatus that loads and executes a computer program. is there.

Further, the computer program to be executed by the receiving apparatus 5 is provided by being transmitted through a satellite line, the Internet, or another network, and is recorded on a floppy disk, a CD-ROM disk, or another recording medium. Can be provided.

[0087]

According to the information processing apparatus according to the first aspect and the information processing method according to the second aspect, the version of the second computer program and the first version compatible with the second computer program are used. A process is described that describes both the version of the computer program. Further, according to the provision medium of the third aspect, the version of the second computer program having a dependency relationship with the first computer program and the version of the first computer program compatible with the second computer program are provided. Are described. Therefore, it is possible to mutually confirm the consistency between the first and second computer programs having a dependency.

According to the information processing apparatus of the fourth aspect and the information processing method of the seventh aspect, the version of the second computer program having a dependency relationship with the first computer program is changed to the first computer program. Is determined, and whether the version of the first computer program is compatible with the version of the second computer program is determined. Based on the determination result, the second Computer program is imported. Therefore, a second version of the second computer that is incompatible with the first computer program.
Can be prevented from being downloaded and installed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of a broadcast system according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a configuration example of a transmission device 1 of FIG. 1;

FIG. 3 is a diagram illustrating a configuration example of a receiving device 5 of FIG. 1;

FIG. 4 is a flowchart for explaining an installation process by a CPU 26 of FIG. 3;

FIG. 5 is a diagram showing storage contents of a program memory 27;

FIG. 6 is a diagram showing storage contents of a temporary buffer 29;

[Explanation of symbols]

1 transmitting device, 2 antennas, 3 satellites, 4 antennas, 5 receiving device, 6 monitor, 7 public network, 11 version information adding circuit, 12 MUX,
13 MPEG encoder, 14 scrambler,
15 modulation circuit, 16 up-converter, 17
Controller, 18 modem, 21 front end, 22 DMUX, 23 descrambler,
24 MPEG decoder, 25 I / F, 26 C
PU, 27 program memory, 28 modem,
29 temporary buffer, 30 RAM

Claims (7)

[Claims] 1. An information processing apparatus for performing a process for providing a second computer program having a dependency relationship with a first computer program, wherein the second computer program has its version and the second An information processing apparatus, comprising: a processing unit that performs a process of describing both a version of the first computer program and a version of the first computer program compatible with the computer program. 2. An information processing method for performing a process for providing a second computer program having a dependency relationship with a first computer program, wherein the second computer program has a version thereof, An information processing method comprising: performing a process of describing both a version of the first computer program and a version of the first computer program that conforms to the computer program of (1). 3. A providing medium for providing a second computer program having a dependency relationship with a first computer program, wherein the second computer program has a version compatible with the second computer program. A providing medium which provides a description of both a version of the first computer program and a version thereof. 4. An information processing apparatus for performing a process of importing a second computer program having a dependency relationship with a first computer program, wherein the version of the second computer program is the version of the first computer program. Determination means for determining whether or not the first computer program is compatible with the version of the second computer program; and determining whether or not the version of the first computer program is compatible with the version of the second computer program. An information processing apparatus, comprising: a capturing unit that captures the second computer program based on the information. 5. The computer program according to claim 1, wherein:
Both the version and the version of the second computer program compatible with the first computer program are described, and the second computer program has the version and the version compatible with the second computer program. In a case where both the version of the first computer program and the version of the first computer program are described, the determination unit performs the determination based on the versions described in the first and second computer programs. The information processing apparatus according to claim 4, wherein: 6. When the first and second computer programs are provided from a predetermined providing device, the version of the second computer program does not match the version of the first computer program. Or a request for requesting the predetermined providing device for a compatible version of the first computer program when the version of the first computer program does not match the version of the second computer program. The information processing apparatus according to claim 4, further comprising a unit. 7. An information processing method for performing a process of importing a second computer program having a dependency relationship with a first computer program, wherein the version of the second computer program is the version of the first computer program. And a determination whether the version of the first computer program is compatible with the version of the second computer program. Based on the determination result, An information processing method characterized by taking in a computer program.