JP2002099441A - Communication terminal apparatus and its operating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication terminal apparatus capable of performing an update of a control program without using a special-purpose rewriting tool. SOLUTION: In the apparatus, a control program 13 for update stored into a removable secondary storage device 7 is read to store into a flash memory 5 in the apparatus if a detecting means 3 for pros and cons on operation detects that the operation should be allowed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for rewriting a control program for a communication terminal device such as a mobile phone.

[0002]

2. Description of the Related Art Conventionally, as a communication terminal device of this kind, there is a method disclosed in, for example, Japanese Patent Application Laid-Open No. 5-327852.

FIG. 21 is a block diagram showing a configuration of a portable telephone disclosed in Japanese Patent Laid-Open No. 5-327852.
The mobile phone 100 includes a CPU 101, a control circuit 102, a flash memory 103, a RAM 104, an EEPROM 1
05, a connector 107, a CPU 101, a control circuit 102, a flash memory 103, a RAM 10
4. The EEPROM 105 is connected via the bus 106. The mobile phone 100 includes a transmission / reception circuit, an audio circuit, an operation panel, a display, a power supply circuit, and the like (not shown) in addition to the above components. Mobile phone 100
The operation of is controlled by the CPU 101.
Is stored in the electrically rewritable flash memory 103. The flash memory 103 includes a debug program 110 for rewriting the control program 109 in addition to the control program 109.
Is stored in an area different from the area where the control program 109 is stored. The RAM 104 is used to load the control program 109 during normal operation, and
M105 stores data indicating the current position of the mobile phone 100 and the like. When performing the rewriting process of the control program 109, the ROM rewrite device 108 is connected to an external connection connector 107 provided in the outer case of the mobile phone 100, and the CPU 101 is connected to the ROM rewrite device 108 via the control circuit 102. And transmit and receive signals.

Next, the operation of rewriting the control program in the above configuration will be described. ROM to connector 107
When the rewrite device 108 is connected, the CPU 101 shifts to the control program rewrite mode. Commands such as address input, erasure, data input, writing, and termination are assigned to a signal input from the ROM rewrite unit 108 in a predetermined format, and the CPU 101 specifies a command based on the input command. The control program 109 is updated by erasing the old control program and writing the new control program.

[0005]

[Problems to be solved by the invention]

In the conventional control program updating method disclosed in Japanese Patent Application Laid-Open No. 5-327852, the control program 109 of the mobile phone 100 at the stage of use by the user is not controlled due to a problem or a version upgrade. When updating the program 109, the mobile phone 100 must be brought to the place where the ROM rewrite device 108 is located, or conversely, the ROM rewrite device 108 must be brought, which makes it difficult to rewrite the control program. there were. The control program 10
No means are provided to block the update operation of No. 9,
If the ROM rewrite device 108 or a device simulating the operation of the ROM rewrite device 108 is used, an unauthorized person can illegally rewrite the control program 109, and there is a problem that the program / data protection function and the security function are insufficient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can easily update a control program without using a dedicated program writing tool, and furthermore, has a program / data protection function and a security function. It is an object of the present invention to obtain a communication terminal device with improved communication.
Still another object is to obtain a communication terminal device that can easily download not only a control program but also content data such as image data, text data, and music data from a secondary storage device. It is still another object of the present invention to provide a communication terminal device that allows a user to update a control program and write content data and that can reliably charge a user for updating a control program and writing content data. .

[0008]

The communication terminal device according to the present invention is determined to be operable by the operability judging means for judging the operability of the operation information stored in the secondary storage device, and by the operability judging means. A memory for storing operation information is provided.

[0009] The communication terminal device according to the present invention includes:
A decryption means for decrypting the encrypted operation information is provided.

The operation information is a control program.

The memory includes a rewritable nonvolatile memory for storing a control program and an R memory for storing a maintenance program indicating a procedure for introducing the control program.
OM.

The memory has a first area of a rewritable nonvolatile memory for storing a control program and a second area of a rewritable nonvolatile memory for storing a maintenance program indicating a procedure for introducing the control program. Is provided.

The operation information includes a control program and a maintenance program indicating a procedure for introducing the control program. The memory stores a rewritable nonvolatile memory for storing the control program and a maintenance program. And a RAM.

The operation information is an application program.

The memory includes a rewritable nonvolatile memory for storing an application program, and a ROM for storing a maintenance program indicating a procedure for introducing the application program.

Further, the memory has a first area of a rewritable nonvolatile memory for storing an application program and a second area of a rewritable nonvolatile memory for storing a maintenance program indicating a procedure for introducing the application program. Are provided.

The operation information includes an application program and a maintenance program indicating a procedure for introducing the application program.
It has a rewritable nonvolatile memory for storing an application program and a RAM for storing a maintenance program.

The operation information is content data.

The memory is a rewritable nonvolatile memory for storing content data.

Further, the memory is provided with an identification information table indicating permitted operation information.
There is provided means for determining whether or not operation is possible based on identification information unique to the operation information read from the next storage device and information in the identification information table.

Further, a means is provided for rewriting the storage number storage section of the identification information table every time the operation information is stored in the memory.

Further, a means for erasing operation information of the secondary storage device is provided.

Further, the memory is provided with a plurality of control program storage areas for storing a plurality of control programs and a control program operation confirmation area indicating an operation state of the control program storage area.

Also, a means for erasing a control program in one inactive control program storage area, a means for writing a control program for update in the control program storage area, and a control for update by rewriting a control program operation confirmation area. Means for causing the program to run.

Also, means for erasing a control program in a plurality of inactive control program areas, means for writing a control program for updating in a control program storage area, and means for rewriting a control program operation confirmation area to rewrite a control program for updating And a means for bringing the device into an operating state.

Means for reading device information unique to the secondary storage device from the secondary storage device; operation availability determination means for determining whether the operation information stored in the secondary storage device is operational; A memory for storing operation information determined to be operable by the means; and an operability determining means for transmitting device information to the host station; and a means for receiving a specific code corresponding to the device information from the host station. Means for determining whether or not the operation information can be operated based on the specific code.

The operation permission / inhibition determining means includes means for determining operation permission / inhibition based on a specific code and a predetermined value.

Further, there is provided means for transmitting billing information to the host station.

Means for reading device information unique to the secondary storage device and identification information unique to the operation information from the secondary storage device; operation availability determination means for determining whether the operation of the operation information is enabled; A memory for storing operation information determined to be operable by the means; and an operability determining means for transmitting device information to the host station; and a means for receiving a specific code corresponding to the device information from the host station. Means for determining whether or not operation is possible based on the identification information and the specific code.

Further, a means is provided for rewriting the storage section for the number of times of storage of the identification information every time the operation information is stored in the memory.

Means for reading device information unique to the secondary storage device and identification information unique to the plurality of operation information from the secondary storage device; means for selecting specific operation information from the plurality of operation information; Operation availability determination means for determining whether or not operation of specific operation information is possible, and a memory for storing specific operation information determined to be operable by the operation availability determination means are provided, and the operation availability determination means includes device information and identification information. Means for transmitting the identification information of the operation information to the host station, means for receiving device information and a specific code corresponding to the identification information of the specific operation information from the host station, and means for determining whether or not operation is possible based on the specific code Are provided.

Means for reading device information unique to the secondary storage device and identification information unique to a plurality of operation information from the secondary storage device; means for selecting specific operation information from the plurality of operation information; Operation availability determination means for determining whether or not operation of specific operation information is possible, and a memory for storing specific operation information determined to be operable by the operation availability determination means are provided, and the operation availability determination means includes device information and identification information. Means for transmitting the identification information of the operation information to the host station; means for receiving device information and a specific code corresponding to the identification information of the specific operation information from the host station; Means for determining whether or not operation is possible based on the information.

Further, the operation method of the communication terminal device according to the present invention includes a step of determining whether the operation information stored in the secondary storage device is operable, and a step of storing the operation information determined to be operable. Including.

Further, a step of reading device information unique to the secondary storage device and identification information unique to the operation information from the secondary storage device, a step of determining whether or not the operation information is operable, and determining whether or not the operation is possible. Storing the operation information determined to be operable by the step; transmitting the device information to the host station; and receiving a specific code corresponding to the device information from the host station. And a step of determining whether or not operation is possible based on the identification information and the specific code.

Reading a device information unique to the secondary storage device and identification information unique to the plurality of operation information from the secondary storage device; selecting specific operation information from the plurality of operation information; A step of determining whether or not the operation of the specific operation information is possible; and a step of storing the specific operation information that is determined to be operable by the step of determining whether or not the operation is possible. Transmitting the identification information of the specific operation information to the host station; receiving the device information and the specific code corresponding to the identification information of the specific operation information from the host station; identifying information and the specific code of the specific operation information Determining whether the operation is possible or not based on the

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a block diagram illustrating a configuration of a communication terminal device according to Embodiment 1 of the present invention. The communication terminal device 1 has a CPU 2, a ROM 4, a flash memory 5, an I / F unit 6, a transmission / reception unit 9, and an antenna 10. The CPU 2, the ROM 4, the flash memory 5, and the I / F unit 6 are connected via a bus 8. It is connected. The bus 8 includes an address bus, a data bus, a read / write control signal, an enable signal, and the like. The communication terminal device 1 includes an audio circuit, an operation panel, a display, a power supply circuit, and the like (not shown) in addition to the above components. The operation of the communication terminal device 1 is controlled by the CPU 2, and the control program of the CPU 2 is stored in the electrically rewritable flash memory 5. The ROM 4 stores a maintenance program for executing a process of updating the flash memory 5, an initialization program for executing an initialization process executed when the communication terminal device 1 is started, and the like. The operation availability determination means 3 provided in the CPU 2 is a program module realized as a part of the maintenance program. The I / F unit 6 is a slot (not shown) for detachably holding the secondary storage device 7 in the main body of the communication terminal device 1. Data is read from the secondary storage device and data is written to the secondary storage device. And a connector (not shown) for electrically connecting the bus 8 and the secondary storage device 7 so as to enable the connection. As specific examples of the secondary storage device 7, various card-type storage devices using a flash memory as a storage medium (compact flash card,
Smart media, memory sticks, SD cards, etc.) and small magnetic disk devices.

Next, the operation for rewriting the control program of the communication terminal device 1 stored in the flash memory 5 will be described.

FIG. 2 is a flowchart of the communication terminal device according to the first embodiment, and FIG. 3 is a format diagram of a secondary storage device. The secondary storage device 7 has device information 1 that is information unique to each secondary storage device, which information is different for each secondary storage device and corresponds to the stored operation information.
1, identification information 12 which is information unique to operation information, and a control program 13 which is operation information are stored at predetermined addresses. 14 is an empty area. Secondary storage device 7
When the power of the communication terminal device is turned on in a state where the communication terminal device is mounted on the / F unit 6, the CPU 2 starts execution from a predetermined address of the ROM 4, initializes internal functions of the CPU 2, and operates various devices such as an operation panel and a display. An initialization process for performing initialization is performed (steps S1 and S2). When the initialization processing is completed, the CPU 2 determines whether to shift to the program update mode or the normal operation mode by reading the device information 11 in the secondary storage device 7 (step S3). If the device information 11 has a predetermined value, it is determined that the secondary storage device storing the control program is mounted, and the process shifts to the program update mode (the processing after step S4). On the other hand, device information 1
If 1 is not the predetermined value, the program reading destination of the CPU 2 is switched from the ROM 4 to the flash memory 5, and
It shifts to the normal operation mode (step S9).

When the mode is shifted to the program update mode, the program module provided as the operation availability determination means 3 is executed (step 100). First, a program update request is transmitted to a host station (not shown) via the transmission / reception unit 9 and the antenna 10 (step S4). The device information 11 is added to the program update request and transmitted. The host station manages a specific code corresponding to the value of the device information 11 on a one-to-one basis, and transmits a specific code corresponding to the device information 11 to the communication terminal device 1 in response to the program update request ( Step S5). The operation possibility determination means 3 reads the identification information 12 stored in the secondary storage device 7 and compares it with a specific code received from the host station (step S6). If the data matches, the process proceeds to step S7. If the data does not match, the program reading destination of the CPU 2 is switched from the ROM 4 to the flash memory 5, and the mode shifts to the normal operation mode (step S9). The above steps S4 to S6 correspond to the operation (step 100) of the operation possibility determination means 3.

If it is determined that the operation is possible, the process for updating the contents of the flash memory 5 (the process after step S7) is executed. A flash memory has a feature that data can be retained even after power is turned off, unlike an SRAM or a DRAM. However, overwriting is not possible, and in order to rewrite data at an arbitrary address in the physical address space, data must be temporarily stored. It needs to be erased. A flash memory is usually composed of a plurality of blocks, and data can be erased only in block units. Although the size of the block differs depending on the type of the flash memory, it is several kilobytes to several hundred kilobytes. There are a byte mode for writing data one byte at a time and a page mode for writing data in units of several hundred bytes at a time. In step S7, the control program stored in the flash memory 5 is erased. The control program may be erased by erasing the entire flash memory 5 or by erasing only the block in which the control program is stored. When the erasure of the control program is completed, the update program is written into the flash memory 5 (step 8). For example, when writing in the byte mode, control is performed by sequentially and repeatedly executing reading of the update control program 13 stored in the secondary storage device 7 and writing of the read data to the flash memory 5 in byte units. Update the program. When writing in the page mode, the update control program 13 read from the secondary storage device 7 is temporarily stored in a page unit, for example, in a RAM built in the CPU, and then written in the flash memory 5. I do. When the writing of the update control program 13 to the flash memory 5 is completed, the CP
The program reading destination of U2 is switched from the ROM 4 to the flash memory 5, the mode shifts to the normal operation mode (step S9), and the control of the communication terminal device 1 is executed with the updated new control program.

In the above embodiment, the device information 11 stored in the secondary storage device 7 is read out, and when the value is a predetermined value, the mode is shifted to the program update mode. For example, when a predetermined key operation is performed through an operation panel provided in the communication terminal device, the mode may be shifted to the program update mode.

In the above-described embodiment, the specific code received from the host station is compared with the identification information stored in the secondary storage device 7, and when they match, the updating process is performed. As another embodiment, the updating process may be performed when the specific code received from the host station has a predetermined value. Even in this case, security can be ensured by checking the device information 11 transmitted to the host station at the time of the program update request.

In the above-described embodiment, an example in which the control program of the communication terminal device is stored in the flash memory 5 has been described. However, an application operating on an OS (Operating System) provided in the communication terminal device is described. The program may be configured to be stored in the flash memory, and a new download or update of the application program may be executed by the method described in the present embodiment.

In the above embodiment, the host station can specify from which communication terminal device 1 the program update request originated, and the host station manages the history of the received program update request. Thereby, the user of the communication terminal device 1 can be charged.
In this case, for example, in step S4, a selection screen for confirming whether to transmit the program update request is displayed on the display, and the program update request is transmitted after the user performs a predetermined key operation via the operation panel. By doing so, billing due to erroneous operation can be prevented.

As described above, the communication terminal device according to the first embodiment of the present invention can perform a program update only by installing the secondary storage device 7 in which a new program to be updated is stored. There is an effect that a program can be easily updated without using a writing tool. In addition, since the operation availability determination means 3 is provided to block so that the process cannot proceed to the program update process unless the identification information 12 stored in the secondary storage device 7 and the specific code received from the host station match. -There is an effect that a communication terminal device excellent in data protection and security can be obtained. Furthermore, since the program update request is transmitted to the host station when executing the program update, the host station can manage the reception history of the program update request and charge the user based on the management history. There is.

Embodiment 2 FIG. 4 is a block diagram showing a configuration of a communication terminal device according to Embodiment 2 of the present invention. In FIG. 4, reference numeral 15 denotes decryption means for decrypting the encrypted information. In this configuration, operation information such as an update control program is encrypted and stored in the secondary storage device 7 in a predetermined format, and when the control program is updated, the operation information is decrypted by the decryption unit 15. And read it out.

As described above, in the second embodiment of the present invention, the operation information such as the control program for updating is encrypted in a predetermined format and stored in the secondary storage device. The information cannot be read by a device that does not have such an effect, so that an unauthorized act can be prevented, and the security can be further enhanced.

Embodiment 3 The communication terminal device according to the third embodiment stores both a maintenance program and an initialization program in a flash memory.

FIG. 5 is a block diagram showing a configuration of a communication terminal apparatus according to Embodiment 3 of the present invention. In the figure, a maintenance program for performing a flash memory update process and a program for performing an initialization process are stored in the flash memory 5.

FIG. 6 is a format diagram of the flash memory 5 according to the third embodiment. The flash memory 5 has 16 blocks from block 0 to block 15. The blocks 0 and 1 store an initialization program + a maintenance program 16, and the blocks 2 to 14 store a control program 17. The block 15 has an empty area 118.

The operation when the control program 17 is rewritten will be described. The flowchart of the operation is the same as that of FIG. 2, but the specific operation contents in steps S1, S3, S6, S7, and S8 are different. In the communication terminal device 1 according to the third embodiment, when the power is turned on in step S <b> 1, the CPU 2 starts execution from the head address of the flash memory 5. When the process proceeds from step S3, S6, or S8 to the normal process (step S9), the CPU 2 reads the program from the block 2 of the flash memory 5.
It operates so that it may switch to the first address of. Further, in step S7, an operation is performed to erase the contents of blocks 2 to 14 of the flash memory 5, and in step S8
Then, the operation is performed so that the update control program read from the secondary storage device 7 is written into the blocks 2 to 14 of the flash memory 5.

As described above, in the communication terminal device according to the third embodiment of the present invention, the maintenance program and the initialization program are also stored in the flash memory for storing the control program. Is unnecessary, and the number of parts can be reduced.

Embodiment 4 In the fourth embodiment, a maintenance program is stored in a secondary storage device.

FIG. 7 is a block diagram showing a configuration of a communication terminal apparatus according to Embodiment 4 of the present invention. In the figure, 19
Is a RAM for storing a maintenance program.

FIG. 8 is a format diagram of the flash memory according to the fourth embodiment. Block 0 stores an initialization program 20, and blocks 1 to 13 store a control program 17. Blocks 14 and 15 are empty areas 18.

FIG. 9 is a format diagram of a secondary storage device according to the fourth embodiment. In the secondary storage device 7, in addition to the device information 11, the identification information 12, and the control program 13 for updating, the control program 17 of the flash memory 5
Is stored at a predetermined address.

The operation when the control program 17 of the fourth embodiment is rewritten will be described. The flowchart of the operation is the same as that of FIG. 2, except that steps S1, S3, S
6, the specific operation contents in S7 and S8 are different. In the communication terminal device 1 according to the fourth embodiment, when the power is turned on in step S1, the CPU 2 starts execution from the head address of the flash memory 5. If it is determined in step S3 that the mode is the program update mode, the maintenance program 22 stored in the secondary storage
AM19 and the program read destination of CPU2 is set to R
It operates to switch to AM19. When the process proceeds from step S3, S6, or S8 to the normal process (step S9), the operation of switching the program read destination of the CPU 2 to the head address of the block 1 of the flash memory 5 is performed. Further, in step S7, an operation is performed to erase the contents of blocks 1 to 13 of the flash memory 5 in which the control program 17 is stored, and in step S8, the update control program read from the secondary storage device 7. 13 is written to the blocks 1 to 13 of the flash memory 5.

As described above, in the communication terminal device according to the fourth embodiment of the present invention, the maintenance program for updating the flash memory 5 is stored in the secondary storage device 7, and only when the program is updated, the maintenance program in the communication terminal device is stored. RAM19
In this case, the maintenance program is not required to be stored in the flash memory 5 in the communication terminal device in advance, and the use efficiency of the flash memory can be improved.

Embodiment 5 FIG. In the fifth embodiment, content data such as image data, text data, and music data is stored in a secondary storage device, and the data is downloaded to a flash memory in a communication terminal device.

FIG. 10 is a format diagram of the flash memory 5 according to the fifth embodiment of the present invention. Blocks 0 to 9 are a program area 22 for storing an initialization program and a control program, and blocks 10 to 15 are a content data area 23 for storing content data such as image data, text data, and music data.
It is. The content data is displayed on a display or transferred to another communication terminal device by a control program of the communication terminal device.

FIG. 11 is a format diagram of a secondary storage device according to the fifth embodiment. In the secondary storage device 7,
Device information 11, identification information 12, content data 2
4 is stored at a predetermined address.

The operation of writing the content data 27 of the secondary storage device into the flash memory 5 in the above configuration will be described.

FIG. 12 is a flowchart of the communication terminal apparatus according to the fifth embodiment. When a predetermined key operation is performed while a predetermined selection screen is displayed in a state where the secondary storage device 7 is attached to the communication terminal device 1 (step S10), the CPU 2 stores the content data stored in the secondary storage device 7.
To check if the next storage device is installed,
The device information 11 in the secondary storage device 7 is read (step S11). If the device information 11 has a predetermined value, it is determined that the secondary storage device 7 in which the content data is stored is attached, and the process shifts to the download mode (the processing after step S12). On the other hand, when the device information 11 is not the predetermined value, the CPU 2 shifts to a normal process (step S16).

When the mode shifts to the download mode, the program module provided as the operation availability determination means 3 is executed (step 100). First, a content write request is transmitted to a host station (not shown) via the transmission / reception unit 9 and the antenna 10 (step S12). The content write request is transmitted with device information added. The host station manages a specific code corresponding to the value of the device information on a one-to-one basis, and transmits the specific code corresponding to the device information 11 to the communication terminal device 1 in response to the content write request (step S1). S13). The operation possibility determination means 3 compares the identification information 12 stored in the secondary storage device 7 with the specific code received from the host station (step S14). If the data matches, the process proceeds to step S15. If the data does not match, the CPU 2 proceeds to a normal process (step S16). The above steps S12 to S14 are the operations of the operation possibility determination means 3 (step 100). In step S15, the content data 27 is read from the secondary storage device 7 and written into the content data area 23 of the flash memory 5 in the byte mode or the page mode. When the writing is completed, the CPU 2 shifts to a normal process (step S16).

As described above, in the communication terminal device according to the fifth embodiment of the present invention, 2
It is possible to download content data simply by installing the next storage device 7, to easily download content data without using a dedicated writing tool, and to download content data via a communication line. Even in comparison, there is an effect that the download can be completed at high speed. Further, since the operation availability determination means 3 is provided to block the download of the content data so that the content code cannot be downloaded unless the identification code stored in the secondary storage device 7 and the specific code received from the host station match. -There is an effect that the communication terminal device 1 excellent in data protection and security can be obtained.

Embodiment 6 FIG. In the sixth embodiment, a plurality of update control programs and content data are stored in a secondary storage device.

FIG. 13 is a format diagram of a secondary storage device according to the sixth embodiment of the present invention. In the secondary storage device 7, device information 11, identification information (A) 25, control program for update (A) 26, identification information (B) 27,
Update control program (B) 28, identification information (a) 2
9, content data (a) 30, identification information (f) 3
1. Content data (f) 32 and the like are stored at predetermined addresses.

In the above configuration, when a predetermined key operation is performed through the operation panel, a menu screen on which the type of the control program for updating and the type of the content data can be selected is displayed on the display. Next, when the user selects an item to be executed from the menu screen and updates the program or downloads the content data, when transmitting a program update request or a content writing request to the host station, the device information 11 and the selection are selected. The identification information corresponding to the specified item is added and transmitted. For example, when the update of the control program (B) 28 is selected on the menu screen, the device information 11 and the identification information (B)
When the content data (a) 30 is selected, the device information 11 and the identification information (a) 29 are added and transmitted. Thus, the host station can manage operation information such as the type of the updated control program and downloaded content data, and can charge for the operation information.

As described above, in the communication terminal device according to the sixth embodiment of the present invention, a plurality of control programs for updating and content data are stored in the secondary storage device 7, so that the secondary storage device There is an effect that the type of program to be updated, the type of content data to be downloaded, and the like can be selected without replacing. In addition, since the identification information of the program to be updated and the content data to be downloaded is transmitted to the host station together with the device information 11, there is an effect that charging can be performed according to the type.

Embodiment 7 FIG. In the seventh embodiment, the number of updates of the control program and the number of downloads of the content data are limited.

FIG. 14 is a flowchart of the communication terminal apparatus according to the seventh embodiment of the present invention. The operations in steps S20 to S28 operate in the same manner as the operations in steps S1 to S9 in the flowchart of FIG. In the seventh embodiment, when the update control program 13 is written into the flash memory 5 (step 27), the value of the storage count storage unit (not shown) of the identification information 12 of the secondary storage device is rewritten. Rewrites the value of the identification information 12 (step S29). In order to rewrite the value of the identification information 12 in step S29, if an attempt is made to update the control program 13 again, step S25
The result of the comparison with the specific code executed in
The rewriting process of the control program 13 is not executed. As a result, the number of updates of the control program 13 can be limited to one. Also, the content data is stored in the flash memory 5.
Even if the content data is downloaded to the flash memory 5, the number of downloads of the content data can be limited to one by executing step S29 after the writing to the flash memory 5 is completed.

In the above embodiment, the case where the number of program updates and downloads is limited to one has been described.
Is written in a specific area, and the permissible number of data is reduced and recorded every time the program is updated or downloaded. When the permissible number becomes one, the processing of the above embodiment is performed. By doing so, it is possible to apply restrictions multiple times.

As described above, the communication terminal device according to the seventh embodiment of the present invention records the execution history in the secondary storage device after updating the control program or downloading the content data. This has the effect of limiting the number of updates and downloads.

Embodiment 8 FIG. The eighth embodiment is another example of the operation availability determination means.

FIG. 15 is a flowchart of a communication terminal apparatus according to the eighth embodiment of the present invention. The operations in steps S30 to S35 operate in the same manner as the operations in steps S1 to S3 and steps S7 to S9 in the flowchart of FIG. The operability judging means 3 of the eighth embodiment reads out the identification information 12 stored in the secondary storage device 7, and then describes the read identification information 12 and a part of the control program or the maintenance program. The information in the identification information table indicating the operation information that allows the operation in the communication terminal device 1 is compared, and if there is a match, the control program is updated.
Alternatively, download of the content data is permitted.

As described above, the operation possibility determination means 3 according to the eighth embodiment of the present invention includes the identification information 12 stored in the secondary storage device 7 and a part of the control program or the maintenance program of the communication terminal 1. Is configured to determine whether to allow the control program to be updated or the content data to be downloaded based on the information in the identification information table described in the above section.If communication with the host station is not possible or information is not charged Thus, there is an effect that the control program can be updated or the content data can be downloaded.

Embodiment 9 In the ninth embodiment, the number of updates of the control program and the number of downloads of the content data in the eighth embodiment are limited.

FIG. 16 is a flowchart of a communication terminal apparatus according to the ninth embodiment of the present invention. The operations in steps S40 to S46 are the same as the operations in steps S30 to S36 in the flowchart of FIG.
In the ninth embodiment, when the writing of the update control program into the flash memory 5 (step 74) is completed,
The value of the identification information table is rewritten by rewriting the value of the storage frequency storage unit (not shown) of the identification information table described in a part of the control program or the maintenance program (step S47). Step S47
In order to rewrite the value of the identification information table in step S5, if the update of the control program 13 is executed again, the comparison result with the identification information 12 executed in step S46 becomes inconsistent, and the rewriting process of the control program 13 is not executed. . As a result, the number of updates of the control program 13 can be limited to one. Even when downloading the content data to the flash memory 5, the step S47 is executed after the writing to the flash memory 5 is completed. The number of downloads of content data can be limited to one.

In the above embodiment, the case where the number of program updates and downloads is limited to one has been described.
Is written in a specific area, and the permissible number of data is reduced and recorded every time the program is updated or downloaded. When the permissible number becomes one, the processing of the above embodiment is performed. By doing so, it is possible to apply restrictions multiple times.

As described above, the communication terminal device according to the ninth embodiment of the present invention records the execution history in the identification information table after updating the control program and downloading the content data. Embodiment 7
In the same manner as described above, the number of updates and the number of downloads can be limited.

Embodiment 10 FIG. In the tenth embodiment, the secondary storage device is effectively used after the update of the control program and the download of the content data are completed.

FIG. 17 is a flowchart of communication terminal apparatus 1 according to Embodiment 10 of the present invention. Step S50
The operation from Step S58 to Step S58 is the same as the operation from Step S1 to Step S9 in the flowchart of FIG. In the tenth embodiment, when the writing of the update control program into the flash memory 5 (step 57) is completed,
The data stored in the secondary storage device 7 is deleted (step S59). Secondary storage device 7 after erasing
, Data can be written at random and data can be read at random. As a result, the secondary storage device 7 that has served as a control program distribution medium is effectively used as an auxiliary memory of the communication terminal device 1. Further, even when the content data is downloaded to the flash memory 5, after the download to the flash memory 5 is completed, step S
By executing step 59, the secondary storage device 7 can be effectively used as an auxiliary memory of the communication terminal device.

As described above, the communication terminal device according to the tenth embodiment of the present invention operates in the secondary storage device 7 after the update of the control program and the download of the content data are completed.
Since the data stored in the secondary storage device 7 is erased, the secondary storage device 7 serving as a control program or a content data distribution medium can be effectively used as an auxiliary memory of the communication terminal device 1.

Embodiment 11 FIG. The eleventh embodiment enables a restart even if a power failure occurs during writing of a control program.

FIG. 18 is a format diagram of the flash memory of the communication terminal device according to the eleventh embodiment of the present invention.
The first to block 0 to block 3 of the flash memory 5
Control program area 33 is divided into blocks 4 to 7
, A third control program area 35 is allocated to blocks 8 to 11, and a control program operation confirmation area 36 is allocated to block 12. At a specific address of the control program operation confirmation area 36, a program area identification flag 37 is provided. The program area identification flag 37 identifies which area of the control program is valid.
In an initial state such as when the communication terminal device is shipped, the control program is stored in the first control program area 33, and the second control program area 34 and the third control program area 35 are not stored. State. Also, the program area identification flag 37 Prefer written and 01 _H, for example.

FIG. 19 is a flowchart of the communication terminal apparatus according to the eleventh embodiment. The configuration of the communication terminal device is the same as that of FIG. 1 and the format of the secondary storage device 7 is the same as that of FIG. When the power of the communication terminal device is turned on with the secondary storage device 7 attached to the I / F unit 6, the CPU 2
Execution is started from a predetermined address of M4, and initialization processing is executed (steps S60 and S61). When the initialization process is completed, the CPU 2 determines whether to shift to the program writing mode or the normal operation mode by reading the device information 11 in the secondary storage device 7 (step S62). If the device information 11 has a predetermined value, the process shifts to the program writing mode (the processing after step S63). On the other hand, when the device information 11 is not the predetermined value, the program area identification flag 37 is read, the program reading destination is switched based on the value (step S69), and the process proceeds to the normal processing (step S70). More specifically, the start address of block 0 of the flash memory program read destination when the value 01 _H in the program area identification flag 34, the start address of the block 4 when the 02 _H, 03 head block 8 when the _H Address and the first control program area 3
3. The second control program area 34 and the third control program area 35 are executed.

When the mode is shifted to the program writing mode, the program module provided as the operation availability determination means 3 is executed (step S100). The operations in steps S63 to S65 executed as the operation availability determination means 3 are the same as those in the first embodiment. If the comparison results in a mismatch at step S65, the program area identification flag 37 is read, the program reading destination is switched based on the value (step S69), and the routine proceeds to normal processing (step S70).

Program write enabled by operation enable / disable determination means 3
If it is determined that the flash memory 5 has a new
Processing for writing the control program (from step S46)
Process). Set the program area identification flag 37
Read, write new control program according to the value
The program area, and erase that program area
(Step S66). For example, program area identification
The value of the flag 37 is 01 _HThe second control program area
Area 34 is 02_HThe third control program area 3
5 to 03_HAt the time of the first control program area 33
Try to erase it. Next, in the erased program area
A new control program read from the secondary storage device 7
Is written (step S67). To flash memory 5
When the writing of the control program 13 is completed, the program
Write a new control program to the system area identification flag 37
To the value corresponding to the program area (step
S68). Rewriting of program area identification flag 37
Upon completion, the program area identification flag 37 is read out,
The program reading destination is switched based on the value (step
(Step S69), and shift to the normal operation mode (Step S70).
Communication terminal device with the newly written control program.
1 is executed. Thus, the communication terminal of the eleventh embodiment
In the device, abnormalities such as power failure during program writing
State, the previous control program remains, and
To avoid running out of workable control programs
it can.

In the above embodiment, every time at step 66,
Although the case where one program area is erased is shown, by erasing a plurality of program areas at the time of erasing,
Elimination of each erasure in step 66 can be omitted.

FIG. 20 is another format diagram of the flash memory of the communication terminal device according to the eleventh embodiment. The control program operation confirmation area 36 of FIG.
The first written flag 38, the second written flag 39, and the third written flag 40 are stored in the first control program area 33, the second control program area 34,
It is provided corresponding to the third control program area 35. These write flag, for example, the 00 _H when the corresponding program area is written in advance as will FF _H when an erase state. In this way, it is efficient to collectively erase unused program areas when the erased program areas are exhausted. Further, if the erasing process is performed while the communication terminal device 1 is idle, it is possible to further increase the processing time efficiency.

As described above, in the communication terminal device according to the eleventh embodiment of the present invention, a plurality of program areas are provided in the flash memory and a new program is written in an unused program area. There is an effect that a communication terminal device that can be restarted reliably even if an abnormal end state such as a sudden power shutdown during the occurrence occurs.

[0092]

According to the communication terminal device of the present invention, a program can be updated only by attaching a secondary storage device storing a new program to be updated.
The program can be easily updated without using a dedicated program writing tool.

[0093] In addition, there is provided an operation availability determination means for blocking so that the process cannot proceed to the program update process unless the identification information 12 stored in the secondary storage device and the specific code received from the host station match. It is possible to obtain a communication terminal device excellent in protection of program / data and security.

Further, since the program update request is transmitted to the host station when the program is updated, the host station can manage the reception history of the program update request and charge the user based on the history. .

Further, since the operation information such as the control program for updating is encrypted in a predetermined format and stored in the secondary storage device, the information cannot be read out unless the device has the decryption means 40. Unauthorized acts can be prevented beforehand, and security can be further enhanced.

Further, since a maintenance program for updating the flash memory and a program for initializing are also stored in the flash memory, R
OM becomes unnecessary, and the number of parts can be reduced.

A maintenance program for updating the flash memory is stored in the secondary storage device.
Since the data is read out to the RAM in the communication terminal device and executed only when the program is updated, it is not necessary to store the maintenance program in the flash memory in the communication terminal device in advance, and the use efficiency of the flash memory can be improved.

Further, the contents can be downloaded only by attaching the secondary storage device storing the contents data, and the contents can be easily written without using a dedicated writing tool. The download can be completed at a high speed as compared with the case where the content data is downloaded via.

[0099] In addition, there is provided an operation availability determination means for blocking so that downloading of content data cannot be executed unless the identification code stored in the secondary storage device and the specific code received from the host station match. It is possible to obtain a communication terminal device excellent in content / data protection and security.

Further, since a plurality of control programs and content data for updating are stored in the secondary storage device, the user can operate the communication terminal device without changing the secondary storage device to be mounted. The type of program to be updated, the type of content to be downloaded, and the like can be selected.

Also, since the identification information of the program to be updated and the content data to be downloaded is also transmitted to the host station, a fee can be charged according to the type.

Further, since the execution history is recorded in the secondary storage device after the control program is updated or the content data is downloaded, the number of updates and downloads can be limited.

The control program is updated or the content is updated based on the identification information 12 stored in the secondary storage device 7 and the information of the identification information table described in a part of the control program or the maintenance program of the communication terminal device 1. The system is configured to determine whether to permit downloading of data, and can update a control program or download content data when communication with the host station is not possible or when information is not charged.

Further, since the data in the secondary storage device is deleted after the update of the control program and the download of the content data are completed, the secondary storage device serving as the control program or the content data distribution medium is used. The device can be effectively used as an auxiliary memory of the communication terminal device.

Further, since a plurality of program areas are provided in the flash memory and a new program is written in an unused program area, an abnormal termination state such as a sudden power-off during program writing occurs. A communication terminal device that can be reliably restarted can be obtained.

[Brief description of the drawings]

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

FIG. 2 is a flowchart of a communication terminal device according to the first embodiment of the present invention.

FIG. 3 is a format diagram of a secondary storage device of the communication terminal device according to the first embodiment of the present invention.

FIG. 4 is a block diagram of a communication terminal device according to a second embodiment of the present invention.

FIG. 5 is a block diagram of a communication terminal device according to a third embodiment of the present invention.

FIG. 6 is a format diagram of a flash memory of the communication terminal device according to the third embodiment of the present invention.

FIG. 7 is a block diagram of a communication terminal device according to a fourth embodiment of the present invention.

FIG. 8 is a format diagram of a flash memory of a communication terminal device according to a fourth embodiment of the present invention.

FIG. 9 is a format diagram of a secondary storage device of the communication terminal device according to the fourth embodiment of the present invention.

FIG. 10 is a format diagram of a flash memory of a communication terminal device according to a fifth embodiment of the present invention.

FIG. 11 is a format diagram of a secondary storage device of the communication terminal device according to the fifth embodiment of the present invention.

FIG. 12 is a flowchart of a communication terminal device according to Embodiment 5 of the present invention.

FIG. 13 is a format diagram of a secondary storage device of the communication terminal device according to the sixth embodiment of the present invention.

FIG. 14 is a flowchart of a communication terminal apparatus according to Embodiment 7 of the present invention.

FIG. 15 is a flowchart of a communication terminal apparatus according to Embodiment 8 of the present invention.

FIG. 16 is a flowchart of a communication terminal apparatus according to Embodiment 9 of the present invention.

FIG. 17 is a flowchart of a communication terminal apparatus according to Embodiment 10 of the present invention.

FIG. 18 is a format diagram of a flash memory of a communication terminal device according to Embodiment 11 of the present invention.

FIG. 19 is a flowchart of a communication terminal apparatus according to Embodiment 11 of the present invention.

FIG. 20 is another format diagram of the flash memory of the communication terminal device according to the eleventh embodiment of the present invention.

FIG. 21 is a block diagram of a mobile phone showing a conventional communication terminal device.

[Description of Signs] 1 communication terminal device, 3 operation availability determination means, 4 RO
M, 5 flash memory, 7 secondary storage device, 1
1 device information, 12 identification information, 13 control program, 15 decryption means, 16 initialization program + maintenance program, 17 control program, 19 R
AM, 21 maintenance program, 23 content data area, 24 content data, 25 identification information (A), 26 control program (A), 27 identification information (B), 28 control program (B), 29 identification information (a), 30 content data (a), 31 identification information (f), 32 content data (f), 33 first
Control program area, 34 second control program area, 35 third control program area, 36 control program operation confirmation area

Claims (31)

[Claims] 1. An operation availability determination unit for determining the availability of operation of operation information stored in a secondary storage device, and a memory for storing the operation information determined to be operable by the operation availability determination unit. A communication terminal device characterized by the above-mentioned. 2. The communication terminal device according to claim 1, further comprising a decryption means for decrypting the encrypted operation information. 3. The communication terminal device according to claim 1, wherein the operation information is a control program. 4. A memory, comprising: a rewritable nonvolatile memory for storing a control program; and an R memory for storing a maintenance program indicating a procedure for introducing the control program.
4. The communication terminal device according to claim 3, comprising an OM. 5. The memory according to claim 1, wherein the memory includes a first area of the rewritable nonvolatile memory storing a control program, and a second area of the rewritable nonvolatile memory storing a maintenance program indicating a procedure for introducing the control program. 4. The communication terminal device according to claim 3, comprising: 6. The operation information includes a control program and a maintenance program indicating a procedure for introducing the control program. The memory includes a rewritable non-volatile memory storing the control program, and a maintenance program. The communication terminal device according to claim 1, further comprising a RAM for storing. 7. The communication terminal device according to claim 1, wherein the operation information is an application program. 8. The communication according to claim 7, wherein the memory has a rewritable nonvolatile memory for storing an application program, and a ROM for storing a maintenance program indicating a procedure for introducing the application program. Terminal device. 9. The rewritable nonvolatile memory according to claim 1, wherein the first area of the rewritable nonvolatile memory stores an application program, and the second area of the rewritable nonvolatile memory stores a maintenance program indicating a procedure for introducing the application program. 8. The communication terminal device according to claim 7, comprising: 10. The operation information includes an application program and a maintenance program indicating a procedure for introducing the application program. The memory includes a rewritable nonvolatile memory for storing the application program, and a maintenance program. The communication terminal device according to claim 1, further comprising a RAM for storing. 11. The communication terminal device according to claim 1, wherein the operation information is content data. 12. The communication terminal device according to claim 11, wherein the memory is a rewritable nonvolatile memory for storing content data. 13. The memory includes an identification information table indicating permitted operation information, and the operation availability determination unit stores identification information unique to the operation information read from the secondary storage device and information in the identification information table. 2. The communication terminal device according to claim 1, further comprising means for judging whether or not operation is possible based on the information. 14. The communication terminal device according to claim 13, further comprising means for rewriting the storage count storage unit of the identification information table each time the operation information is stored in the memory. 15. The communication terminal device according to claim 1, further comprising means for erasing operation information of the secondary storage device. 16. The memory according to claim 1, wherein the memory includes a plurality of control program storage areas for storing a plurality of control programs, and a control program operation confirmation area indicating an operation state of the control program storage area. Communication terminal device. 17. A means for erasing a control program in one inactive control program storage area, a means for writing a control program for update in the control program storage area, and a means for rewriting a control program operation confirmation area to update the control program 17. The communication terminal device according to claim 16, further comprising means for causing said control program to operate. 18. A means for erasing a control program in a plurality of inactive control program areas, a means for writing a control program for updating in the control program storage area,
17. The communication terminal device according to claim 16, further comprising means for rewriting a control program operation confirmation area to make the control program for updating active. 19. A means for reading device information unique to a secondary storage device from a secondary storage device;
An operation enable / disable determining unit for determining whether the operation of the operation information stored in the next storage device is enabled, and a memory storing the operation information determined to be operable by the operation enable / disable determining unit; Means for transmitting the device information to a host station, means for receiving a specific code corresponding to the device information from the host station, and means for determining whether the operation information can be operated based on the specific code. A communication terminal device comprising: 20. The communication terminal device according to claim 19, wherein said operation availability determination means includes means for determining whether or not operation is possible based on the specific code and a predetermined value. 21. The communication terminal device according to claim 19, further comprising means for transmitting charging information to a host station. 22. A means for reading device information unique to the secondary storage device and identification information unique to the operation information from the secondary storage device, an operation availability determination means for determining whether the operation information is operable, and A memory for storing the operation information determined to be operable by the operability determining means, wherein the operability determining means includes means for transmitting the device information to a host station; and A communication terminal device comprising: means for receiving a corresponding specific code; and means for determining whether or not operation is possible based on the identification information and the specific code. 23. The communication terminal device according to claim 22, further comprising means for rewriting the storage unit for the number of times of storing the identification information every time the operation information is stored in the memory. 24. A means for reading device information unique to the secondary storage device and identification information unique to a plurality of operation information from the secondary storage device, and selecting the specific operation information from the plurality of operation information. Means, operation enable / disable determination means for determining whether the operation of the specific operation information is possible, and a memory for storing the specific operation information determined to be operable by the operation enable / disable determination means; Means for transmitting the device information and the identification information of the specific operation information to a host station, and receiving a specific code corresponding to the device information and the identification information of the specific operation information from the host station; And a means for determining whether or not operation is possible based on the specific code. 25. The communication terminal device according to claim 24, wherein said operation availability determination means includes means for determining whether or not operation is possible based on the specific code and a predetermined value. 26. The communication terminal according to claim 24, further comprising means for transmitting accounting information to the host station. 27. A means for reading, from a secondary storage device, device information unique to the secondary storage device and identification information unique to a plurality of pieces of operation information, and means for selecting specific operation information from the plurality of pieces of operation information. And a memory for storing the specific operation information determined to be operable by the operation permission / non-permission determining means; Means for transmitting the identification information of the device information and the specific operation information to a host station, and means for receiving a specific code corresponding to the identification information of the device information and the specific operation information from the host station And a means for determining whether or not operation is possible based on the identification information of the specific operation information and the specific code. 28. The communication terminal device according to claim 27, further comprising means for rewriting the storage unit for the number of times of storing the identification information every time the operation information is stored in the memory. 29. An operation of a communication terminal apparatus, comprising: a step of determining whether or not operation of operation information stored in a secondary storage device is operable; and a step of storing the operation information determined to be operable. Method. 30. A step of reading, from a secondary storage device, device information unique to the secondary storage device and identification information unique to the operation information; determining whether the operation information is operable; and determining whether the operation is possible. Storing the operation information determined to be operable by the determining step, wherein the step of determining whether the operation is possible is a step of transmitting the device information to a host station, and the step of transmitting the device information from the host station to the device information. An operation method for a communication terminal device, comprising: receiving a corresponding specific code; and determining whether operation is possible based on the identification information and the specific code. 31. A step of reading, from a secondary storage device, device information unique to the secondary storage device and identification information unique to a plurality of pieces of operation information, and selecting specific operation information from the plurality of pieces of operation information. Determining whether or not the specific operation information is operable, and storing the specific operation information determined to be operable by the step of determining whether or not the operation is possible, and determining the operation possibility. Transmitting the device information and the identification information of the specific operation information to a host station; and receiving a specific code corresponding to the device information and the identification information of the specific operation information from the host station. And determining whether the operation is possible based on the identification information of the specific operation information and the specific code. The operation method of the communication terminal device described below.