JP2003316585A - Terminal equipment, process monitoring method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide terminal equipment, an invalid thread monitoring method and a program for preventing streaming data downloaded through a network from being illegally copied. <P>SOLUTION: The terminal equipment 1 preliminarily registers processes for realizing a capture function, a recording function or the like in an invalid process list 22b, and at reproducing streaming data to be distributed by a streaming service or the like, when the processes registered in the invalid process list 22b are being started, the terminal equipment 1 executes the forced termination of those processes. Also, the terminal equipment 1 preliminarily registers processes for realizing any function other than the capture function or recording function in a valid process list 22b, and at reproducing contents data to be distributed by the streaming service or the like, when any process other than the process registered in the valid process list 22a is being started, the terminal equipment 1 executes the forced termination of the processes. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device capable of prohibiting execution of an inappropriate program, and particularly to prevent illegal copying of contents distributed through a communication line. The present invention relates to a terminal device, a process monitoring method, and a program.

[0002]

2. Description of the Related Art In recent years, information distribution services that use streaming technology to distribute contents such as video data and music data to a personal computer using the Internet so that the content can be played back in real time on the personal computer have become widespread. In order to prevent illegal copying, data distributed using such streaming technology is embedded with copyright protection information (for example, a reproducible terminal ID or compatible software information).
You can enable playback only on specific terminals or software,
When the data is illegally copied, the copied data can be reproduced only on the terminal to prevent the distributed data from being illegally used.

[0003]

However, in such a conventional streaming technique, for example, an operating system (O
In S), when the multitask processing function capable of executing a plurality of programs in parallel is provided, the data may be illegally copied when the streaming data is reproduced. That is, while playing streaming data, an application having a capture function is activated in parallel, and video data or audio data is captured and stored in the hard disk, so that the streaming data can be illegally copied. It will be possible. The image data or the audio data thus copied may be distributed via a network or copied to various recording media.

An object of the present invention is to provide a terminal device, a process monitoring method, and a program suitable for preventing execution of an inappropriate program such as illegally copying streaming data downloaded via a network. That is.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is a terminal device capable of executing multi-task processing, wherein a multi-task processing is executed when a predetermined program is being executed. And a process recognizing unit that recognizes a process that is currently running, and a process that determines whether the process that is currently running by the process recognizing unit is permitted to be concurrently executed with the predetermined program. And a process terminating unit for forcibly terminating the currently activated process when the deciding unit discriminates that the currently activated process is prohibited.

Therefore, according to the first aspect of the present invention, a plurality of processes are generated by the multitasking process, and when a plurality of processes are executed in parallel, a process to be activated is executed in a predetermined manner. By judging whether the program is permitted, it is possible to prohibit the execution of the improper process. Thus, for example, by setting the process for realizing the capture function or the recording function as a prohibited process, the content data received by the communication means is not illegally copied, and the unauthorized use of the content data can be prevented. it can.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. However, the scope of the invention is not limited to the illustrated example. Here, the terminal device according to the present invention,
The correspondence relationship between each component of the terminal device according to the present embodiment will be specified. That is, the terminal device of the present invention corresponds to the terminal device 1 of the present embodiment, and the process recognition means, the determination means, the process termination means, and the application determination means of the present invention correspond to the control unit 11 of the present embodiment. is doing.
Further, the storage means for storing the information of the process of the present invention,
It corresponds to the valid process list 22a or the invalid process list 22b of the present embodiment. Further, the monitoring target application storage means of the present invention corresponds to the process monitoring target application list 22c of the present embodiment.

In the present invention, the invalid process is
A valid process is a process whose execution is prohibited when a predetermined application is running, and an effective process is a process whose execution is allowed when the predetermined application is running. Further, software indicates a program created to cause a computer to perform a desired process, and application indicates software for performing a specific process. Furthermore, a process is an execution unit of a program executed by multitask processing, a thread is an execution unit of a process, and a module is a detailed configuration unit of software.

[First Embodiment] First, the configuration will be described. The terminal device 1 is a terminal operated by a user who uses a streaming service, and is configured by a PDA (Personal Digital Assistants) that is an information portable terminal, a desktop PC, a notebook PC, or the like. This terminal device 1 is equipped with at least an operating system (OS) capable of multitask processing, and if it is equipped with an OS capable of multitask processing, even if it is constituted by a mobile phone, PHS, or the like. good. In the following, the case where the streaming data distributed by the streaming service is moving image data will be described as an example, but the streaming data is not limited to moving image data, and various content data including image data, music data, etc. are applied. It is possible.

FIG. 1 is a block diagram showing a main configuration of a terminal device 1 according to the first embodiment. As shown in FIG. 1, the terminal device 1 includes a control unit 11, a data communication control unit 12, a communication control unit 13, a voice control unit 14, a voice input / output device 15, an RTC 16, a display control unit 17, a display device 18,
Input control unit 19, input device 20, program storage unit 2
1, a data storage unit 22 and the like, and each unit is connected by a bus.

The control unit 11 includes a CPU (Central Processi).
ng Unit), RAM (Random AccessMemory), ROM
(Read Only Memory) and the like. CP
The U expands a system program stored in the program storage unit 21 and a program designated from various application programs into a work area (not shown) of the RAM, and the communication control unit 13, the voice input / output device 15, Depending on the data input from the input device 20 or the like,
Executes various processes according to the program and outputs the process results to RA
Store in work memory in M. Further, in order to output the processing result, voice information and display information are generated and output to the voice input / output device 15 and the display device 18, and the processing result is output to the data storage unit 22.

More specifically, the control unit 11 reads out the moving image reproduction software processing program and the process monitoring processing program from the program storage unit 21, and the moving image reproduction software processing (see FIG. 3) and the process monitoring processing program (see FIG. 4) which will be described later. ). When executing the process monitoring processing program, the control unit 11 performs a predetermined activation initialization process when activating the video reproduction software when an instruction to activate the video reproduction software is input through the input device 20. , Process monitoring processing is executed in the initialized state.

When executing the process monitoring process, the control unit 11 enumerates the processes currently being activated in the work memory of the RAM, expands the process list, and sets a pointer at the head of the process list. Then, the control unit 11
Acquires an invalid process list and a valid process list from the data storage unit 22 and determines whether the process to which the pointer is set is present in the invalid process list or the valid process list.

Here, if the active process is present in the invalid process list or is not present in the valid process list, the control unit 11 executes processing for forcibly ending this process. On the other hand, if the active process is present in the active process list, the control unit 11 increments the pointer of the process list while keeping this process active and monitors the next process. And
The control unit 11 monitors all the processes included in the process list expanded in the work memory, and when the monitoring of all the processes ends, the process monitoring process ends.

As described above, the control unit 11 executes the process monitoring process in the initialization state in the moving image reproduction software process, and forcibly terminates the invalid process before reproducing the moving image.
Or, forcibly terminate processes other than valid processes. Subsequently, when the user inputs an instruction of moving image data to be reproduced via the input device 20, the control unit 11 creates a process monitoring thread prior to the moving image data reproducing process. Then, the control unit 11 executes the moving image data reproduction processing and the process monitoring processing in parallel by generating a plurality of threads. By creating the process monitoring thread, the process monitoring process can be executed without interrupting the reproduction process.

When the process monitoring thread is created, the control unit 11 sets the monitoring timer of the RTC 16 (for example, n seconds) and executes the process monitoring process every n seconds. The control unit 11 repeatedly executes the process monitoring process every n seconds until the moving image data reproducing process executed in parallel is completed. Then, the control unit 11 issues an end event of the process monitoring thread when the moving image data reproduction process ends in the moving image reproduction software process, and when the end event is issued, in the process monitoring thread,
Delete the monitoring timer and terminate the process monitoring thread.

The data communication controller 12 controls the data communication protocol based on a predetermined data communication method.

The communication control unit 13 is composed of a wireless modem or the like, executes a communication protocol for a wireless communication terminal with a wireless base station via an antenna (not shown), and performs data communication etc. by a set communication channel. I do. In addition, the communication control unit 13 uses a modem (MODEM: MOdulato).
r / DEModulator) or terminal adapter (TA: Te
LAN (Local)
It may be configured to be connected to a transmission medium connected to various networks such as an Area Network), a WAN (Wide Area Network), or the Internet. Specifically,
The communication control unit 13 receives content data such as image data, music data, moving image data distributed by a streaming service via a network such as the Internet.

The voice control unit 14 extracts the voice signal input from the control unit 11, amplifies it to a predetermined signal level by an amplifier (not shown), and outputs it to the voice input / output device 15.
Output audio from the speaker. Also, the voice control unit 14
When detecting an analog signal input from the voice input / output device 15, the A / D converter (not shown) encodes the analog signal into a digital signal, converts the analog signal, and outputs the digital signal to the control unit 11.

The voice input / output device 15 is provided with a speaker, a microphone and the like (not shown), and outputs the voice data output from the voice control unit 14 from the speaker. In addition, the analog signal of the voice acquired by the microphone is output to the voice control unit 14.

An RTC (real time clock) 16 is a built-in clock, has a register for storing current time information and clock frequency information to be set in addition to an oscillator circuit, and clock frequency determined by the oscillator circuit. According to the above, the time is measured and the current time information is stored / updated in the register. The RTC 16 is used when, for example, activating a program that operates according to time, but in the present invention, the RTC 16 further has a timer function and sets a monitoring timer for performing process monitoring processing.

The display control unit 17 drives and controls the display device 18 based on the video signal input from the control unit 11, and causes the display device 18 to display various display information including a moving image or a still image. .

The display device 18 is composed of a liquid crystal display panel or the like integrally formed with a touch panel on the upper side of the display screen, and displays the display information input from the control section 11 under the control of the display control section 17. .

The input control section 19 is connected to the input device 20, and based on the detection signal input from the input device 20,
The control unit 2 generates an input signal corresponding to the operated instruction.
Output to 1.

The input device 20 includes a keyboard 20a provided with cursor keys, numeral input keys, and various function keys, a touch panel 20b provided to cover the display device 18 including a liquid crystal display panel, and a pointer movable. Consists of a mouse, etc. When the input device 20 detects an input operation, it outputs the operated operation position information to the input control unit 19 as a detection signal.

The program storage unit 21 has a recording medium (not shown) in which programs and the like are stored in advance, and this recording medium is composed of a magnetic recording medium, an optical recording medium, or a semiconductor memory. . This recording medium is one that is fixedly provided in the storage device 16 or one that is detachably mounted, and this recording medium stores the system program and various application programs corresponding to the system. Specifically, the program storage unit 21 stores a moving image reproduction software processing program, a process monitoring processing program, a moving image data reproduction processing program, a process forced termination processing program, screen capture software, and the like.

The data storage unit 22 has a recording medium (not shown) in which various data and the like are stored in advance. The recording medium is composed of a magnetic recording medium, an optical recording medium, or a semiconductor memory. There is. In addition, the data storage unit 2
Reference numeral 2 stores data processed by the various application programs described above. Specifically, the data storage unit 22 stores the content data (audio data, moving image data, image data, etc.) downloaded via the communication control unit 13, the valid process list, the invalid process list, and the like.

An example of the data structure of the valid process list 22a and the invalid process list 22b stored in the data storage unit 22 will be described with reference to FIG. FIG. 2A is a diagram showing a data configuration example of the valid process list. Figure 2
As shown in (a), for example, the valid process list 22
Software that does not have a capture function, such as video reproduction software, browser software, and mail software, is registered in a and stored in the data storage unit 22. Also, FIG.
(B) is a diagram showing an example of the data structure of the invalid process list 22b. For example, software having a screen capture function, an AV capture function, an audio data recording function, etc. is registered and stored in the data storage unit 22. .

Next, the operation of the first embodiment will be described. A program for realizing each function described in each flowchart described later is stored in the recording medium of the terminal device 1 in the form of a readable program code, and the control unit 11 of the terminal device 1 controls the program code. The operation according to is sequentially executed. In addition, the control unit 11
Can also sequentially execute the operation according to the program code transmitted via the transmission medium. That is,
In addition to the recording medium, it is also possible to execute the operation peculiar to the present embodiment using a program or data externally supplied via a transmission medium.

FIG. 3 is a flowchart showing the moving image reproduction software processing executed by the control unit 11. As shown in FIG. 3, when the user inputs an instruction to activate the video reproduction software via the input device 20, the control unit 11 executes a predetermined activation initialization process (step S1). Next, the control unit 11 executes process monitoring processing (step S2).

FIG. 4 is a flowchart showing a process monitoring process executed as a part of the moving image reproducing software process. As shown in FIG. 4, the control unit 11 enumerates the processes currently being activated in the work memory of the RAM (step S2).
1) Set a pointer at the beginning of the listed process list (step S22). Subsequently, it is determined whether or not there is a process currently being activated (step S23), and when there is a process currently being activated (step S23), the control unit 11 causes the data storage unit 22 to display the invalid process list 2
2a is acquired, and it is determined whether the process to which the pointer is set exists in the invalid process list (step S24).

If the process to which the pointer is set is present in the invalid process list 22b (step S24; YES), the control unit 11 forcibly terminates this process which is currently being activated (step S27). If the process to which the pointer is set does not exist in the invalid process list 22b (step S24; N
O), the control unit 11 acquires the valid process list 22a from the data storage unit 22 and determines whether or not this process exists in the valid process list 22a (step S25). If the process does not exist in the valid process list 22a (step S25; NO),
The control unit 11 forcibly terminates this process that is currently being activated (step S27).

On the other hand, if this process exists in the valid process list 22a (step S25; YES), the control unit 11 increments the pointer of the process list listed in the work memory of the RAM and sets the pointer to the next process. (Step S26), step S2
3 (step S26), and steps S23 to S26 are repeated. Then, when there are no processes to be monitored in the listed process list (step S23; NO), the control unit 11 ends the process monitoring process and shifts to the moving image reproduction software process.

Subsequently, the control unit 11 returns to step S3 of the moving image reproduction software process, and waits for the user to select the moving image data to be reproduced through the input device 20. Here, when the moving image data is selected by the user (step S3; YES), the control unit 11 creates a process monitoring thread prior to the moving image data reproduction processing (step S4). That is, the control unit 11 creates a process monitoring thread to perform parallel processing of moving image data reproduction processing and process monitoring processing.

As shown in FIG. 3B, the control unit 11 is
In the process monitoring thread that performs parallel processing, RTC
The 16 monitoring timers are set to n seconds to start counting (step S11). Next, the control unit 11 determines whether or not an end event of the moving image data reproduction processing has been issued (step S12), and when an end event has not been issued (step S12; NO), whether or not a timer event has occurred. That is, it is determined whether or not n seconds have elapsed since the monitoring timer started counting (step S
13). Here, when the timer event does not occur (step S13; NO), the generation of the timer event is awaited as it is, and when the timer event occurs (step S12; YES), the control unit 11 executes the process monitoring processing ( Step S14). The process monitoring process executed here is the same as the process monitoring process executed in step S2 described above, and thus detailed description thereof will be omitted.

When the process monitoring process is completed, the control unit 11 returns to step S12 and repeats steps S12 to S14 every n seconds. In addition, when the process monitoring thread end event is issued in step S12 (step S1).
2; YES), delete the monitoring timer (step S1)
5) Terminate the process monitoring thread.

Further, the control section 11 executes a moving image data reproducing process in parallel with the process monitoring process (step S
5) When the moving image data reproduction process ends, a process monitoring thread end event is issued (step S6).
Then, the control unit 11 moves to step S3 and repeats steps S3 to S6.

As described above, according to the terminal device 1 in the first embodiment, the process for realizing the capture function, the recording function, etc. is previously set as the invalid process list 22.
If the processes registered in b are registered and the processes registered in the invalid process list 22b are activated when the streaming data distributed by the streaming service or the like is reproduced, these processes are forcibly terminated.

Thus, for example, in the case of reproducing content data such as image data, music data, moving picture data distributed by using the streaming service, the content reproduced in the terminal device 1 capable of multitasking. It is possible to prevent data from being illegally copied by using a capture function, a recording function, or the like.

Further, processes for realizing functions other than the capture function and the recording function are registered in advance in the valid process list 22a, and when the content data distributed by the streaming service or the like is reproduced, the valid process list 22a. If processes other than those registered in are running, the processes will be killed.

Thus, for example, even when an application having a capture function and a recording function is installed in the terminal device 1 later by the user, by forcibly terminating the processes other than those registered in advance,
It is possible to prevent the content data from being illegally copied.

Further, for example, when the capacity of the operating memory of the terminal device 1 is small, software having a large memory usage amount is registered in advance as an invalid process so that software programs having a large memory usage amount are parallel to each other. It can be prevented from being executed, and software execution will not be interrupted due to lack of memory.

The above description in the first embodiment is an example of the preferred terminal device 1 according to the present invention, and the present invention is not limited to this. For example, in the first embodiment, a valid process registered in advance,
Or, the terminal device 1 was monitored for the invalid process.
However, in the case of a mobile phone or the like, the software provided by the manufacturer in advance as an effective process is stored in the ROM area. Therefore, if the process started is R
If the valid process is determined by determining whether it is due to the software stored in the OM area, the terminal device 1 does not need to have the valid process list 22a and the invalid process list 22b, and the data area is saved. You can save. In addition, in order to prevent the above-mentioned memory shortage, only the invalid process list 22b may be provided in the terminal device 1.

The object to be monitored is not limited to the process, but may be, for example, a structure in which a module having a smaller processing unit than the process is monitored. That is, the data storage unit 22 includes an invalid module list and an effective module list,
Register invalid modules and valid modules in advance,
In the process monitoring process, the module included in the listed process may be acquired and monitored, and the process including the corresponding module may be forcibly terminated. As a result, the invalid process can be monitored at a more detailed level, and the copy of the content data can be effectively prevented.

[Second Embodiment] Next, a second embodiment utilizing the present invention will be described. The second book
Since the terminal device 1 according to the second embodiment has the same configuration as the terminal device 1 according to the first embodiment, the same components as those in the above-described first embodiment have the same configuration in the drawings. And the description thereof will be omitted. The configuration and processing characteristic of the second embodiment will be described below.

The program storage unit 21 further stores a process monitoring processing (2) program as a characteristic configuration of the second embodiment. In addition, the data storage unit 2
2 further stores a process monitoring target application list 22c, which is a characteristic configuration of the second embodiment. The process monitoring target application list 22c is, for example, an application for reproducing moving image data,
An application for playing music data is registered. That is, in the process monitoring process (2), the process monitoring process is executed when the application registered in the process monitoring target application list 22c is activated.

Then, the control unit 11 of the terminal device 1 reads the process monitoring process (2) program from the program storage unit 22 as a process characteristic of the second embodiment, and executes the process monitoring process (described below). 2) (see FIG. 5) is executed.

When the process monitoring process (2) is executed, the control unit 11 turns on the power of the terminal device 1.
When the operating system is activated, the activation initialization process of the process monitoring process (2) is executed. Subsequently, the control unit 11 sets an application activation timer for recognizing an application currently activated (hereinafter, abbreviated as “app”) at regular time intervals. Then, each time a timer event of the application activation timer occurs, the control unit 11 enumerates the currently activated applications in the work memory of the RAM and expands the application list.

Further, the control unit 11 acquires the process monitoring target application list 22c from the data storage unit 22 and determines whether or not there is an application to be process monitoring target in the expanded application list. Then, when there is an application included in the process monitoring target application list 22c, the control unit 11 executes the process monitoring processing. The process monitoring process executed here is the same as the process monitoring process in the first embodiment described above, and thus detailed description thereof is omitted. Then, the control unit 11 constantly drives the application activation monitoring timer while the OS of the terminal device 1 is activated, and monitors the process at every predetermined time.

Next, the operation of the second embodiment will be described. FIG. 5 is a diagram showing a flowchart of the process monitoring process (2) executed by the control unit 11 of the terminal device 1. As shown in FIG. 5, the control unit 11 controls the terminal device 1
When the power of is turned on and the OS is started (step S
31; YES), the activation initialization process of the process monitoring process (2) is executed (step S32). Then, the control unit 1
1 sets the application activation monitoring timer to n seconds and starts counting (step S33).

Next, the control unit 11 determines whether or not a timer event of the application activation monitoring timer has occurred (step S34), and when the timer event has occurred (step S34; YES), the application currently activated. Are listed in the work memory of the RAM (step S3).
5). Subsequently, the control unit 11 acquires the monitoring target application list 22c from the data storage unit 22 and determines whether or not the monitoring target application is included in the currently activated applications (step S36). .

Here, if the currently activated application does not include the monitoring target application (step S3)
6; NO), the control unit 11 resets the application activation monitoring timer and restarts counting, and proceeds to step S34. In addition, when the monitoring target application is included in the currently activated applications (step S35: YES),
The control unit 11 executes the process monitoring process (step S
37) When the process monitoring process is completed, the application activation monitoring timer is reset and the counting is restarted. Then, the control unit 11 repeatedly executes steps S34 to S37 while the OS is running.

As described above, according to the terminal device 1 in the second embodiment, the process monitoring process (2) is executed by the independent software so that the terminal device 1 is powered on and the OS is While it is running, it always monitors the running application. Then, it is determined whether or not there is an application to be monitored among the currently activated applications, and if there is an application to be monitored among the currently activated applications, process monitoring processing is executed, Execute the forced termination of apps that include invalid processes or apps that do not include valid processes.

Therefore, the process monitoring process (2)
By operating as an independent application,
Since the process monitoring process is executed only when the application to be monitored is activated, the process monitoring process can be executed efficiently. Further, for example, when a plurality of applications are to be monitored, it is not necessary to include a process for executing the process monitoring process in each application. That is, it is not necessary to include overlapping processes, the processing speed of the terminal device 1 can be improved, and the storage capacity of the program storage unit 21 can be efficiently used.

The above description in the first and second embodiments is an example of the preferred terminal device 1 according to the present invention, and the present invention is not limited to this. For example, although a case has been described with the present embodiment as an example where streaming data is distributed using a streaming service, the distributed data is not limited to the case where streaming technology is used, and various methods are available. It may be content data including image data, video data, music data, etc. distributed via a network.

In addition, it is needless to say that the detailed configuration and detailed operation of the terminal device 1 in the first or second embodiment can be appropriately changed without departing from the spirit of the present invention. .

[0057]

According to the present invention, when a plurality of processes are generated by multitask processing and a plurality of processes are executed in parallel, a predetermined program and a simultaneous execution are permitted for the activated processes. It is possible to prohibit the execution of improper processes that are not permitted and have been determined. With this, for example, while the content whose copying is to be prohibited is being played back by the playback software, the program that realizes the capture function or the recording function is simultaneously executed to prevent the illegal copying of the content data. be able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main configuration of a terminal device 1 according to a first embodiment of the present invention.

2A is a diagram showing a data configuration example of a valid process list 22a stored in a data storage unit 22 of FIG. FIG. 2B is a diagram showing a data configuration example of an invalid process list 22b stored in the data storage unit 22 of FIG.

FIG. 3 is a flowchart showing a moving image reproduction software process executed by the control unit 11 of FIG.

FIG. 4 is a flowchart showing a process monitoring process executed by a control unit 11 in FIG.

FIG. 5 is a flowchart showing a process monitoring process (2) executed by the control unit 11 of the terminal device 1 in the second embodiment.

[Explanation of symbols]

1 terminal device 11 Control unit 12 Data communication controller 13 Communication control unit 14 Voice control unit 15 Audio input / output device 16 RTC 17 Display control unit 18 Display 19 Input control section 20 Input device 21 Program storage section 22 Data storage

Claims (8)

[Claims] 1. A terminal device capable of executing multitask processing, comprising: a process recognition means for recognizing a process currently activated by the multitask processing when a predetermined program is being executed; and the process recognition means. Determination means for determining whether or not the process recognized as being currently activated is permitted to execute concurrently with the predetermined program; and the determination means determines that the currently activated process is prohibited. And a process termination unit for forcibly terminating the process. 2. A predetermined program includes storage means for storing information on a process whose activation is permitted or prohibited during execution of the program, and the determination means is activated based on the information in this storage means. The terminal device according to claim 1, wherein it is determined whether or not the process that is being performed is permitted. 3. The predetermined program is a program for reproducing content data received via a network, and the storage means stores information for prohibiting execution of a process for copying content data. The terminal device according to claim 2, wherein the terminal device is a terminal device. 4. The terminal device according to claim 1, wherein the process recognition means functions by executing a part of the predetermined program. 5. The discriminating means discriminates as a permitted process if the process currently activated by the multitasking process is based on a program stored in a read-only memory. The terminal device described. 6. A monitored application storage means for storing information about an application program to be monitored, and whether or not the application program currently activated is an application to be monitored stored in the monitored application storage means. And a determination unit that determines whether the currently activated process is permitted to be executed by the determination unit when the determination unit determines that the activated application is the application to be monitored. The terminal device according to claim 1, wherein the terminal device makes a determination. 7. A process monitoring method in a terminal device capable of executing multitask processing, comprising a process recognition step of recognizing a process currently activated by multitask processing when a predetermined program is being executed, The process recognized by the process recognition process determines whether the process currently running is permitted to be concurrently executed with the predetermined program, and the process currently activated by the determination process is prohibited. And a process termination step for forcibly terminating the process, the process monitoring method comprising: 8. A process recognition function for recognizing a process currently activated by multitask processing when a predetermined program is executed on a computer capable of performing multitask processing, and a process recognition function for recognizing a process currently being executed. The process recognized as being activated determines whether or not concurrent execution with the predetermined program is permitted, and the process determines that the currently activated process is prohibited. If it does, a process termination function that forcibly terminates the process, and a program that realizes.