JPH07121674A - Ic card and information processor using the card - Google Patents

Abstract

PURPOSE:To provide an IC card which can perform the compression or extension processing in response to data and also can increase the data input/output processing speed. CONSTITUTION:The data received via an external interface part 13 are supplied to an MPU 11 together with the attribute information which is used for compression/restoration of the data. The MPU 11 applies the prescribed compression processing to the data based on the supplied attribute information and then stores these supplied data and attribute information in a prescribed area of a memory 12. In a reproduction mode, the data and the attribute information are sent to the MPU 11 from the memory 12. Thus the MPU 11 performs the prescribed restoration processing based on the attribute information and then outputs the data via the part 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card for decompressing or compressing data and an information processing apparatus using the IC card, and more particularly, to compressing or decompressing data for compression or decompression processing. The present invention relates to an IC card that performs decompression processing and an information processing device that uses the IC card.

[0002]

2. Description of the Related Art In recent years, floppy disk drives, magneto-optical disk drives, cassette recorders, etc., which are external storage devices used in information processing apparatuses, and RAM (Randam Access Memory), ROM (Read O
nly Memory) and the like have been downsized or increased in capacity due to technological progress. As a result, financial transaction cards such as credit and cashing, or identification, medical care,
Personal information cards for welfare, residents, etc. can be read from the magnetic card to the IC
It is changing to a card. The IC card has a memory, a microprocessor and the like mounted therein and is capable of various information processing. In addition, the memory capacity of the memory included in the IC card becomes relatively large, so that the necessary data can be kept unchanged depending on the application used.
It is stored in the memory in the C card.

On the other hand, with the increase in the amount of stored data, IC cards have been developed which reduce the storage capacity by compressing the data to be stored.

For example, in Japanese Unexamined Patent Publication No. 1-219981, data compression means for compressing data input from the outside in addition to a memory and a CPU (central processing unit) in an IC card, and a compression means. There is disclosed an IC card including a data compression / decompression circuit having data decompression means for decompressing stored data.

Further, in Japanese Patent Laid-Open No. 2-183388, a memory and a microcomputer are mounted in an IC card, and a writing function for compressing data input from the outside and writing it in the memory and a memory function in the memory. An IC card including a microcomputer that performs a reading function of restoring compressed data and outputting it to the outside is disclosed. Less than,
The conventional IC card as described above will be described with reference to the drawings. FIG. 14 is a block diagram showing the configuration of a conventional IC card.

In FIG. 14, the IC card 100 has a C
PU 101, memory 102, external interface unit 10
3, including a compression / conversion unit 104.

Next, the compression processing and decompression processing of the above-mentioned conventional IC card will be described. FIG. 15 shows a conventional I
It is a flow chart explaining compression processing of a C card.

First, in step S71, data is input from the external processing device. The data output from the external processing device is C via the external interface unit 103.
It is input to the PU 101. The CPU 101 outputs the input data to the compression / conversion unit 104.

Next, in step S72, data compression processing is performed. The compression / decompression unit 104 performs compression processing on the input data according to a predetermined compression method, and outputs the data to the memory 102.

Next, in step S73, the memory 1
The writing processing of the compressed data to 02 is performed. The data compressed by the compression / conversion unit 104 is recorded at a predetermined address in the memory 102.

FIG. 16 is a flow chart for explaining a conventional IC card restoration process. First, step S81
At, the stored data is read from memory 102. The data stored at the predetermined address designated by the CPU 101 is transferred from the memory 102 to the compression / conversion unit 10.
4 is output.

Next, in step S82, data restoration processing is performed. The data output from the memory 102 is restored to the original data by the compression / decompression unit 104 by a predetermined decompression method.

Next, in step S83, a process of outputting the restored data to the external processing device is performed. The data restored by the compression / conversion unit 104 is output to the CPU 101. The CPU 101 outputs the input data to the external processing device via the external interface unit 103.

Through the above processing, the data is compressed or decompressed by a predetermined compression or decompression method and stored in the memory 102 or output from the memory 102 to an external processing device.

[0015]

In the above-mentioned conventional IC card, all the data is compressed or decompressed by a predetermined compression or decompression process, so that the data transferred from the outside has a large amount of information. Since the data is transferred as it is, there is a problem that the input / output processing takes time. Further, since the same compression or decompression process is performed on all data, there is a problem that the compression or decompression process corresponding to each data cannot be performed.

The present invention is to solve the above problems, and provides an IC card capable of performing compression or decompression processing according to data and speeding up data input / output processing. To aim.

Another object of the present invention is to provide an information processing apparatus capable of performing compression or expansion processing according to data in an IC card or an information processing apparatus.

[0018]

According to another aspect of the present invention, there is provided an IC card in which compression means for performing predetermined data compression processing on data according to compression processing data, data compressed by the compression means, or compressed data. Storage means for storing data that has not been stored, and decompression processing means for performing predetermined data decompression processing on the compressed data read from the storage means according to the decompression processing data.

An information processing apparatus according to a second aspect is an information processing apparatus using an IC card for processing data including compression or decompression processing data relating to compression or decompression processing. A first compression unit that performs a predetermined data compression process on the data, a storage unit that stores the data compressed by the first compression unit or the uncompressed data, and the compressed data read from the storage unit. The information processing apparatus includes a first decompression processing unit that performs a predetermined data decompression process according to the decompression process data, and the information processing device performs a predetermined data compression process on the data according to the compression process data and outputs the compressed data to the IC card. Second decompression means for outputting to the second decompression means for decompressing the compressed data output from the IC card according to the decompression processing data. And a stage.

[0020]

In the IC card according to the first aspect, predetermined data compression or decompression processing can be performed in accordance with the compression or decompression processing data. Therefore, desired data compression according to the data is performed in the IC card. Alternatively, extension processing can be performed.

According to another aspect of the information processing apparatus,
Since both the information processing device and the IC card can perform predetermined data compression or expansion processing in accordance with the compression or expansion data, the IC card or the information processing device can perform desired data compression or expansion according to the data. Decompression processing can be performed.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An IC card according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an IC card according to an embodiment of the present invention.

In FIG. 1, the IC card 1 is an MPU.
(Microprocessor unit) 11, memory 12, and external interface unit 13 are included. In addition, MPU11,
It includes a ROM 14, a CPU 15, and a RAM 16. The external interface unit 13 is an external information processing device (not shown).
Is connected to and transfers data with an external information processing device. The CPU 15 performs a predetermined process using the data stored in advance in the ROM 14, and temporarily stores the created data and the like in the RAM 16. Also, CP
U15 performs a predetermined compression / decompression process according to the compression / decompression attribute information described below, and stores the data input from the external interface unit 13 in a predetermined address of the memory 12.

In the memory 12, the memory area is divided into predetermined areas according to a plurality of applications used. The ROM 14 stores a plurality of types of encryption information and data compression / decompression attribute information. The number and method name can be acquired by an external processing device by a special command, for example, a command such as acquisition of ATR information, card ID information, attribute information in each application. An area for each application in each ROM 14 is provided with an area for attribute information that describes how to handle the data in the area, and the data is restored based on the information during data processing. It is determined whether or not to perform compression processing, and which compression / restoration method is to be used when performing compression / restoration processing.

Next, the data structure of the ROM 14 shown in FIG. 1 will be described. FIG. 2 is a diagram showing a data structure of the ROM 14 shown in FIG.

As shown in FIG. 2, in the ROM 14,
IC card processing program unit 21, encryption processing function group unit 26, compression / decompression processing function group unit 25, compression / decompression processing function group management table 24, encryption processing function group management table 2
3, other and management table 22 and the like are included. The compression / decompression processing function group unit 25 includes a plurality of functions for compression / decompression processing such as functions 1, 2, 3, .... The compression / decompression function group management table 24 includes a function number 241 and a function start address 242 of each function. The others and the management table 22 include a compression / decompression processing function group management table start address 223, an encryption processing function group management table start address 222, and an IC card processing program section start address 221. Each function in the compression / decompression processing function group section 25 is used as necessary when executing the program of the IC card processing program section 21.

Next, the data structure of the memory 12 shown in FIG. 1 will be described. FIG. 3 is a diagram showing a data configuration of the memory 12 shown in FIG.

As shown in FIG. 3, the data in the memory 12 is divided into a system management area 30 and an application area, and the application area is the application 1
It is divided into a plurality of application areas such as an area 31, an application 2 area 32, and an application 3 area 33. Each application area includes a file management unit 311 and a data unit 312. Data management unit 31
In 2, data is stored in area units, record units, and byte units.

The above data structure differs depending on the content of the application, and is not limited to the data structure shown in FIG. A file management section is included under the file management for each application, and below that,
A management information table for managing the area in the file is included.

FIG. 4 is a diagram showing the structure of the file management unit shown in FIG. As shown in FIG. 4, the file management unit includes a file management table 40 and an in-file area management information table 41. File management table 4
0 includes a file name 401, access condition 402, and attribute / other file management information 403. The area ID 41 is stored in the file area management information table 41.
1, an access condition 412, and attribute / other area management information 413 are included.

Next, the compression / decompression attribute information used in this embodiment will be described. In the present embodiment, the compression / decompression attribute information is transferred at the same time when the data is transferred, so that a predetermined compression / decompression process is executed according to the transferred compression / decompression attribute information. FIG. 5 is a diagram showing the structure of compression / decompression attribute information.

As shown in FIG. 5, the compression / decompression attribute information includes a first compression / decompression attribute 51 and a second compression / decompression attribute 52. The first compression / decompression attribute 51 includes a compression flag (Eflag) 53 and a decompression flag (Dflag) 54. The second compression / decompression attribute 52 includes a compression / decompression function type 55.

The data input / output to / from the IC card 1 is determined by the compression flag 53 and the decompression flag 54 included in the first compression / decompression attribute 51 as to whether or not the compression or decompression process is executed. As for the function to be used, each processing is executed by defining a predetermined function from the function group in the ROM 14 shown in FIG. 2 by the compression / decompression function type 55 of the second compression / decompression attribute 52. In Table 1, the compression flag 5
3 shows a pattern of compression / decompression processing according to 3 and the decompression flag 54.

[0034]

[Table 1]

Next, the compression or decompression process of the IC card configured as described above will be described. Figure 6 shows the IC
It is a flow chart explaining compression processing of a card.

First, in step S1, the MPU 11 receives the data transferred from the external information processing apparatus via the external interface unit 13 of the IC card 1.

Next, in step S2, in accordance with a command output from an external information processing device, instruction information indicating which area of which file shown in FIG. Then, the compression / decompression attribute information of the corresponding area is acquired.

Next, in step S3, a compression flag (Efla) included in the acquired compression / decompression attribute information.
Check g). If the compression flag is 1, the process moves to step S5 to perform the data compression process, and otherwise the process proceeds to step S4 because the compression process is not performed.

If the compression flag is determined to be 1 in step S3, the function used for performing the data compression process is defined in step S5. This processing is defined by selecting a predetermined function from the compression / decompression function group included in the ROM 14 according to the value of the compression / decompression function type included in the compression / decompression attribute information.

Next, in step S6, predetermined data compression is performed using the prescribed compression / decompression processing function.

Next, in step S7, the compressed data is stored in a predetermined position of the memory 12.

On the other hand, if it is determined in step S3 that the compression flag is not 1, the decompression flag Dflag is checked in step S4. If the restoration flag is 0, the process proceeds to step S7, and if it is not 0, the process ends. That is, as shown in Table 1, when the compression flag is 0 and the decompression flag is 0, it is determined that the operation is normal, and the subsequent processing is continued, but the compression flag is 0 and the decompression flag is 1 In the case of, it is determined that the state is abnormal, and the process ends. At this time, the error status may be transferred as a response in order to notify the external information processing device that the operation is abnormal.

If it is determined in step S4 that the restoration flag is 0, the transferred data is stored in a predetermined position of the memory 12 as it is in step S7.

With the above processing, it is possible to perform a predetermined compression processing according to the compression / decompression attribute information.

Next, the IC card restoration process will be described. FIG. 7 is a flowchart illustrating the IC card restoration process.

First, in step S11, the memory 1
Predetermined data is read from 2 and output to the MPU 11. At this time, instruction information indicating from which area of which file the data is to be read is designated by a command output from the MPU 11.

Next, in step S12, the compression / decompression attribute information of the area in the read file is acquired.

Next, in step S13, the decompression flag (Dfla) included in the obtained compression / decompression attribute information.
Check g). If the restoration flag is 1, the process proceeds to step S14 to execute the data restoration process.
If it is other than 1, the process proceeds to step S17 so as not to perform the data restoration process.

Next, in step S14, the compression flag (Eflag) is checked. If the compression flag is 1, the process proceeds to step S15, otherwise the process ends. That is, as shown in Table 1, when the decompression flag is 1 and the compression flag is 1, it is determined that the operation is normal and the subsequent decompression processing is executed, but the decompression flag is 1 and the compression flag is 0. In the case of, since the operation is abnormal, the processing ends. When ending the processing, the error status may be transferred as a response in order to notify the external information processing apparatus that the operation is abnormal.

Next, in step S15, the function used for the data restoration processing is defined. That is, a predetermined function is selected from the compression / decompression function group of the ROM 14 and defined according to the value of the compression / decompression function type included in the compression / decompression attribute information.

Next, in step S16, the data is restored using the defined restoration processing function.

Next, in step S17, the MPU1
1 transfers the restored data to the external information processing device via the external interface unit 13.

On the other hand, if it is determined in step S13 that the restoration flag is not 1, the data read from the memory 12 is directly transferred to the external information processing device via the external interface unit 13 in step S17.

By the above processing, a predetermined decompression process according to the compression / decompression attribute information is executed.

As the above compression / decompression processing function, a reversible algorithm having a small capacity and a high processing speed is used. For example, a method using an algorithm of Huffman code or arithmetic code is used.

Next, the defining processes S5 and S15 of the compression / decompression use function shown in FIGS. 6 and 7 will be described. FIG. 8 is a flowchart illustrating a process of selecting a function to be used from the IC card compression / decompression function group.

First, in step S21, the value of the compression / decompression function type 55 is acquired from the second compression / decompression attribute 52 shown in FIG.

Next, in step S22, the obtained compression / decompression function type value corresponds to the function number 241 as the offset value of the compression / decompression processing function group management table 24 shown in FIG. 2, that is, the function number 241. The function start address 242 is obtained.

Next, in step S23, the function to be used this time is selected from the compression / decompression function group unit 25 by the acquired function start address 242 and is determined.

With the above processing, it is possible to select a predetermined function according to the compression / decompression attribute information.

By the above operations, desired data compression or expansion processing can be performed according to each application, that is, data used by the IC card, and the storage capacity can be effectively utilized. That is, the data can be stored as it is or the compression ratio can be changed according to the importance of the data according to each application. Moreover, since a plurality of compression / decompression methods can be registered in the IC card, the number of applications that can be used is increased and it is possible to apply to a wide range of applications.

Further, in the present IC card, the data can be stored as it is without performing the compression processing. Therefore, by inputting / outputting the data which has been compressed by the external information processing device in advance, the IC can be connected to the external information processing device. The data transfer time with the card can be shortened.

Next, an information processing apparatus using the above IC card will be described with reference to the drawings. FIG. 9 is a block diagram showing the configuration of the information processing apparatus according to the embodiment of the present invention.

In FIG. 9, the information processing device includes an IC card 1, a reader / writer 2, and a terminal device 3.

The IC card 1 has the same structure as the IC card shown in FIG. IC card 1 is reader / writer 2
Mounted on the terminal 3 and performs processing such as data transfer with the terminal device 3 via the reader / writer 2. The reader / writer 2 may be built in the terminal device 3. Terminal device 3
Performs a predetermined compression or decompression process based on the compression / decompression attribute information similarly to the IC card 1. In the compression or decompression processing in the terminal device 3, since the same processing as that of the IC card 1 is executed, the function type or the like used in the compression or decompression processing is acquired from the IC card 1 and the function is used.

Next, the structure of the application program previously stored in the terminal device 3 will be described. FIG. 10 is a diagram showing a configuration of an application program of the terminal device shown in FIG. As shown in FIG. 10, the application program is a menu program 60,
First business application program 611, second business application program 612, third business application program 613, cryptographic processing function group unit 67, compression / decompression processing function group unit 66, compression / decompression processing function group management table 65, cryptographic processing function Group management table 64, program management table 63, management table and others 6
Including 2. The management table and others 62 include a compression / decompression processing function group management table start address 624, an encryption processing function group management table start address 623, a program management table start address 622, and a menu program start address 621. The compression / decompression function group management table 65 includes a function number 651 and a function start address 652. The compression / decompression processing function group unit 66 includes a plurality of functions 1, 2, 3, ... Used for compression or decompression processing. The first, second, and third business application programs 611, 612, and 613 each include compression / decompression attribute information 69. Compression / decompression attribute information 6
9 includes determination information 691 for determining whether compression or decompression processing is necessary. Judgment information 691
Includes a compression flag (TDflag) 693 and a compression flag (TEflag) 694.

Next, the compression or decompression process of the information processing apparatus configured as described above will be described. FIG. 11 shows
It is a flow chart explaining compression processing of an information processor.

First, in step S31, it is determined whether or not compression / decompression processing is required in the terminal device 3. The determination information may differ depending on the business application to be processed, and is owned by each business application itself as shown in FIG. The terminal device 3 is shown in FIG.
The above check is performed using the judgment information 691 shown in 0.

Next, in step S32, it is checked whether the compression flag (TEfalg) is 1.
When the compression flag is 1, the compression process is necessary, and thus the process proceeds to step S34. In other cases, the compression process is not necessary, and the process proceeds to step S33.

Next, in step S34, the terminal device 3 determines that the current business application requires the compression process on the terminal device 3 side, and therefore the target file area for writing the data from the IC card 1 this time. Compression of
Read the attribute information for restoration. That is, the terminal device 3 compresses
Upon requesting the decompression attribute information, the IC card 1 extracts and outputs the compression / decompression attribute information from the area in the designated file in step S41. The output compression / decompression attribute information is output to the terminal device 3 side as a response.

Next, in step S35, the compression flag (Efla) included in the acquired compression / decompression attribute information.
Check g). If the compression flag (Eflag) is 1, the process proceeds to step S37, and if not, the process proceeds to step S36. If the compression flag (Eflag) is 1, data compression processing is performed, so step S3
7 defines the function used for compression processing. That is, the compression of the IC card 1 acquired in step S34
According to the value of the compression / restoration function type included in the restoration attribute information, a predetermined function is selected from the functions incorporated in the business application software on the terminal device 3 side and defined.

Next, in step S38, data compression processing is executed using the specified compression processing function.

Next, in step S39, the terminal device 3 uses the compressed data as the write data for the reader / writer.
Output to the IC card 1 via the writer 2. That is, I
On the C card 1 side, the data output from the terminal device 3 is written in a predetermined area of the memory 12 according to the compression processing shown in FIG.

On the other hand, when it is determined that the compression flag (TEflag) is not 1 in step S32, the restoration flag (TDflag) is checked in step S33. If the decompression flag (TDflag) is 0, compression processing is not performed, and the process directly moves to step S39.

Next, in step S39, the uncompressed data is directly output to the IC card 1. At this time, on the IC card 1 side, the input data is stored in the memory 12 as it is. In addition, the restoration flag (TDf
If lag) is other than 0, it is determined that the operation is abnormal, and the process ends. At this time, if another information processing device is connected to a higher level of the terminal device 3, an error status may be returned to the higher level information processing device in order to notify that the operation is abnormal.

If it is determined in step S35 that the compression flag (Eflag) is not 1, the decompression flag (Dflag) included in the compression / decompression attribute information output from the IC card 1 in step S36.
Check. If the decompression flag (Dflag) is 0, the compression process is not performed, and the process proceeds to step S39. If the restoration flag (Dflag) is not 0, the operation is abnormal, and the process is ended in the same manner as step S33. Further, when the information processing device is connected to the host, the error status may be transferred.

With the above processing, it is possible to execute the compression processing according to each business application program.

FIG. 12 is a flow chart for explaining the restoration processing of the information processing apparatus. Here, the business application program to be processed determines whether the data compression or decompression process on the terminal device 3 side is necessary or unnecessary 691.
Shall be owned.

First, in step S51, the terminal device 3 sends a predetermined command to the IC via the reader / writer 2.
Output to card 1. IC card 1 that received the command
In step S61, reads data from a predetermined area of a predetermined file in the memory 12 designated by the command and outputs the data to the terminal device 3 via the reader / writer 2. The processing in step S61 is executed according to the IC card restoration processing shown in FIG.

Next, in step S52, the terminal device 3 side checks the judgment information 691 included in the business application, which indicates whether the compression or decompression process is necessary or not.

That is, in step S53, the restoration flag (TDflag) is checked. If the restoration flag (TDflag) is 1, the process proceeds to step S54 to execute the restoration process, otherwise the process is terminated.

Next, in step S54, the compression flag (TEflag) is checked. If the compression flag (TEflag) is 1, the process proceeds to step S55, and in other cases, the process is terminated, and if the upper information processing device is further connected as described above, the error status is set to the upper information. Output to the processing unit.

Next, in step S55, the terminal device 3 reads the compression / decompression attribute information of the data output in step S61. That is, the terminal device 3 is
The IC card 1 is instructed to output the compression / decompression attribute information via the writer 2. In step S62, the IC card 1 extracts the compression / decompression attribute information of the area in the designated file and outputs it through the reader / writer 2.

Next, in step S56, the decompression flag (Dfl) included in the output compression / decompression attribute information.
Check ag). Restore flag (Dflag) is 1
In the case of, the process proceeds to step S57, and in other cases, the process ends.

Next, in step S57, the compression flag (Eflag) is checked. Compression flag (Efl
If ag) is 1, the process proceeds to step S58. In other cases, the operation is abnormal, so the process is interrupted, and if a higher-level information processing device is connected, the error status is set to higher-level information processing. Output to the device.

Next, in step S58, the function used for compression / decompression is defined. That is, according to the value of the compression / decompression function type 55 included in the second compression / decompression attribute 52 shown in FIG. 5, a predetermined function incorporated in the application program shown in FIG. 10 is selected and defined.

Next, in step S59, data restoration processing is performed using the prescribed restoration processing function.

With the above processing, it is possible to execute the restoration processing according to each application.

The functions for the above compression / decompression processing are as follows:
For the terminal device 3 and the IC card 1, those having a reversible algorithm and having a small capacity and a high processing speed are used. For example, a method using an algorithm such as Huffman code or arithmetic code is used.

Next, the definition processing S37 and S58 of the function used for compression / decompression shown in FIGS. 11 and 12 will be described. FIG. 13 is a flowchart illustrating a process of selecting a function to be used from the compression / decompression process function group of the information processing device.

First, in step S71, the value of the compression / decompression function type included in the second compression / decompression attribute read from the IC card 1 is acquired.

Next, in step S72, the obtained value of the compression / decompression function type is used as the offset value of the compression / decompression processing function group management table 65 of the application program of the terminal device 3, that is, the function number 651. The function start address 652 of the function to be executed is acquired.

Next, in step S73, the function to be used this time is determined by the acquired function start address 652.

By the above processing, it becomes possible to select the function to be used from the compression / decompression processing function group 66.

By the above processes, desired data compression or decompression process corresponding to each application program, that is, data can be performed in the IC card or the information processing apparatus, and the storage capacity of the IC card can be increased according to the data. It can be effectively used and the range of applicable application programs can be expanded. Further, since the data compressed by the terminal device can be directly output to the IC card, the transfer time can be shortened.

[0096]

According to the IC card of claim 1,
Since desired data compression or expansion processing can be performed in the IC card according to the data, the storage capacity of the IC card can be effectively utilized according to the data and the range of application programs used can be expanded. You can also Further, since compressed data can be input / output, the data transfer time can be shortened.

In the information processing apparatus according to claim 2,
Since the desired data compression or decompression processing according to the data can be performed in the IC card or the information processing device, the storage capacity of the IC card can be effectively used according to the data and the range of usable application programs can be increased. It can be expanded. Since the IC card can input and output compressed data,
It also becomes possible to shorten the data transfer time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an IC card according to an embodiment of the present invention.

FIG. 2 is a diagram showing a data structure of a ROM shown in FIG.

FIG. 3 is a diagram showing a data configuration of a memory shown in FIG.

FIG. 4 is a diagram showing a configuration of a file management unit shown in FIG.

FIG. 5 is a diagram showing a structure of compression / decompression attribute information.

FIG. 6 is a flowchart illustrating an IC card compression process.

FIG. 7 is a flowchart illustrating an IC card restoration process.

FIG. 8 is a flowchart illustrating a process of selecting a function to be used from a compression / decompression process function group of an IC card.

FIG. 9 is a block diagram showing a configuration of an information processing apparatus according to an embodiment of the present invention.

10 is a diagram showing a configuration of an application program of the terminal device shown in FIG.

FIG. 11 is a flowchart illustrating a compression process of the information processing device.

FIG. 12 is a flowchart illustrating a restoration process of the information processing device.

FIG. 13 is a flowchart illustrating processing for selecting a function to be used from the compression / decompression processing function group of the information processing apparatus.

FIG. 14 is a block diagram showing a configuration of a conventional IC card.

FIG. 15 is a flowchart illustrating a compression process of a conventional IC card.

FIG. 16 is a flowchart illustrating a conventional IC card restoration process.

[Explanation of symbols]

 1 IC Card 2 Reader / Writer 3 Terminal Device 11 MPU 12 Memory 13 External Interface Section 14 ROM 15 CPU 16 RAM

Claims (2)

[Claims] 1. An IC card for processing data including data for compression or decompression related to compression or decompression processing, comprising: compression means for performing predetermined data compression processing on the data according to the data for compression processing. Data compressed by the compression means, or storage means for storing the data, and decompression processing means for performing predetermined data decompression processing on the compressed data read from the storage means in accordance with the decompression processing data. IC card including. 2. An information processing apparatus using an IC card for processing data including compression or decompression processing data relating to compression or decompression processing, wherein the IC card stores the data in accordance with the compression processing data. First compression means for performing a predetermined data compression process, data compressed by the first compression means, or storage means for storing the data, and compressed data read from the storage means as the decompression processing data. A first decompression processing unit that performs a predetermined data decompression process according to the data processing device, the information processing device performs a predetermined data compression process on the data according to the compression process data, and compresses the compressed data into the IC card Second compression means for outputting to the compressed data output from the IC card according to the decompression processing data. Nau second
An information processing apparatus using an IC card including a decompression unit.