JP3486969B2 - IC card file selection system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file selection system for an IC card in which any one of a plurality of files stored in a storage unit of an IC card is selected and read by a reader / writer. It is a thing.

[0002]

2. Description of the Related Art Generally, a large number of files (data) are stored in a storage section of an IC card by being divided by file numbers. Therefore, when this IC card is inserted into the reader / writer and any one of the files is selected and read by the reader / writer, the ten key of the reader / writer is operated to input the file number, The file with that file number was read from the IC card and displayed.

[0003]

However, in the above-mentioned conventional file selection method, a file number must be input by operating the ten keys of the reader / writer every time an IC card is inserted into the reader / writer. It was very troublesome. The present invention has been made in consideration of such circumstances, and therefore, an object thereof is to make it possible to eliminate or simplify the key operation for inputting a file number after inserting an IC card, and to improve usability. It is to provide a file selection system for an IC card that can be used.

[0004]

In order to achieve the above object, a file selection system for an IC card according to claim 1 of the present invention stores a plurality of files in a storage section of the IC card, and the IC card is a reader. In a system that is inserted into a writer and one of the plurality of files is selected and read by the reader / writer, the file number of the plurality of files is stored in the storage unit of the IC card . first to read the reader writer after insertion of the IC card of, the reading frequency
A start file number storage area in which a plurality of relatively high file numbers are stored is provided, and the control unit of the reader / writer compares the read frequencies stored in the start file number storage area after inserting the IC card.
Display Nde write read the target high multiple of the file number, the user
Operates a predetermined operation key on the operation unit of the reader / writer.
The above-mentioned multiple file numbers that are read frequently
By selecting any one of the two, the file with the selected file number is controlled to be read from the storage unit of the IC card.

In this case, as described in claim 2, the file number to be selected next is written in the last line of each file number stored in the storage section of the IC card, and the file number of the reader / writer is written. The control unit may control to sequentially select and read the next file according to the file number written in the last line of each file.

[0006]

Further, as described in claim 3 , by specially operating the operation unit of the reader / writer, the mode may be switched to a registration mode in which a desired file number can be registered in the start file number storage area. .

[0008]

In general, when the IC card is inserted into the reader / writer, the file to be read first is often the same file. That is, the same IC card often reads the same file first for display every time. Focusing on such a usage tendency, in the system according to claim 1 described above, a comparison is made between the read frequencies which are desired to be read first after the IC card is inserted in the start file number storage area provided in the storage unit of the IC card. A plurality of highly accurate file numbers are stored. After that, when the IC card is inserted into the reader / writer, the control unit of the reader / writer
A relatively high multiple of the file number of the read frequency stored in the start file number storage area of the card displays Nde read <br/> seen write, the user of the operation unit of the reader-writer
The reading frequency is relatively high by operating a predetermined operation key.
You can select any one of the multiple file numbers.
And, the file of the selected file number is read from the storage unit of the IC card. In this case, the start file number
Read multiple file numbers stored in the storage area.
Since it is limited to those with relatively high frequency,
-Compared to inputting the file number by
Easy file number selection.

Further, in claim 2, the file number to be selected next is written in the last line of the file of each file number stored in the storage section of the IC card. In this case, when reading the second and subsequent files, the control unit of the reader / writer sequentially selects and reads the next file according to the file number written in the last line of each file. This makes it possible to automatically and continuously select a plurality of files in a preset order.

[0010]

Further, according to the third aspect , when the operation section of the reader / writer is specially operated, the mode is switched to the registration mode in which a desired file number can be registered in the start file number storage area of the IC card. In this registration mode, a desired file number is input by key operation to rewrite the stored contents of the start file number storage area.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, the hardware configuration of the entire system will be described with reference to FIG. The IC card 11 used in this embodiment is a non-contact type IC card (contactless IC card), and the power supply circuit 12 provided therein receives power from a reader / writer 13 described later by electromagnetic coupling. A power receiving coil 14 is provided for this purpose.

Inside the IC card 11, a CPU 15 which operates by receiving power supply from the power supply circuit 12 and an EEPROM 16 which is a storage unit are provided. Also,
Inside the IC card 11, two transmitting plates 17 and two receiving plates 18 for transmitting and receiving data to and from the reader / writer 13 by electrostatic coupling are provided.
These transmitting / receiving plates 17 and 18 and the CPU 15 are connected via a communication circuit 19.

EEPROM 1 of the IC card 11 described above
6, the file numbers "0" to "2"
For "55", 256 files (data) can be written. In the example of FIG. 4, the medical examination data is written in the file number “0” and the file number “1” is written.
Height data is to be written in. Each file (data) consists of fixed data and variable data. As shown in FIG. 7, the fixed data is data surrounded by ESC (1Bhex), and rewriting of data is prohibited (see FIG. 7). In the example, the fixed data are "Shincho" and "."
And "cm"). On the other hand, the variable data can be rewritten, and in the example of FIG. 7, the underlined data becomes the variable data.

In this embodiment, the area of the file number "255" of the EEPROM 16 is set as the start file number storage area, and the file number of the file to be read first after inserting the IC card 11 is written in this area. . Further, except for the file number “255” which is the start file number storage area, the files written in the respective file numbers “0” to “254” have the file number to be selected next written in the last line. .

On the other hand, the reader / writer 13 is constructed as a portable terminal as shown in FIG. 5, and the liquid crystal panel 2 is provided on the upper surface thereof.
0 and an operation unit 21 are provided, and the operation unit 21 is provided with operation keys such as a power switch 22, a selection key 23, and a numeric keypad 24. The reader / writer 13 is provided with a power feeding coil 25 at a position facing the power receiving coil 14 of the inserted IC card 11, and a switching transistor 26 is provided in a power supply path to the power feeding coil 25. The ON / OFF of the transistor 26 is controlled by the CPU 27 as a control unit, and the transistor 26 is periodically turned on / off to periodically turn on / off the power supply path to the power feeding coil 25.
An alternating current is applied to the IC card 11 by its electromagnetic induction.
The voltage is induced in the power receiving coil 14.

Further, the reader / writer 13 has a transmitting plate 17 and a receiving plate 18 of the inserted IC card 11.
Two receiving plates 28 and two transmitting plates 29 are provided at positions facing each other, and these transmitting / receiving plates 28, 29 are connected to the CPU 27 via a communication circuit 30. As a result, data is transmitted / received between the transmission / reception plates 17 and 18 of the IC card 11 and the transmission / reception plates 28 and 29 of the reader / writer 13 by electrostatic induction. Further, when the IC card 11 is correctly inserted in a predetermined set position, the card detection switch 31 outputs a card detection signal to the CPU 27.

Since the reader / writer 13 is a portable terminal, it uses the dry battery 32 as a power source, and the dry battery 32 supplies power to the CPU 27 through the power circuit 33. In this embodiment, in order to extend the life of the dry cell 32, the CPU
As shown in FIG. 6, the switch 27 turns off the switching transistor 26 except when the IC card 11 is accessed to turn off the power supply to the IC card 11, and the operation unit 21 is operated for a predetermined time or longer. It also has an auto power-off function that automatically turns off the power supply circuit 33 of the reader / writer 13 when left unattended. At the time of auto power off and at the end of access to the IC card 11, the control data (the next reading start position) immediately before that is E.
It is adapted to be stored and held by the EPROM 34.

CPU 2 of the reader / writer 13 described above
7 executes the start file read routine shown in FIG.
After the insertion of the file, the file is automatically read, and the special operation of the operation unit 21 of the reader / writer 13 executes the file number registration routine of FIG. 2 to switch to the registration mode and register the desired file number. Hereinafter, the control contents of each of these routines will be described in detail.

In the start file reading routine of FIG. 1, in step 101, the card detection switch 31
It is determined whether or not the IC card 11 is inserted into the reader / writer 13 based on the output signal of No.
Wait until the IC card 11 is inserted. After this, I
When the C card 11 is inserted, the determination in step 101 becomes “Yes”, the process proceeds to step 102, the switching transistor 22 is driven, and power supply to the IC card 11 is started.

Next, in step 103, the file number written in the file number "255" of the IC card 11 is read. Next, in step 104, the file of this file number is read and the contents of the file are displayed on the liquid crystal panel 20 (step 105).
Therefore, only by inserting the IC card 11 into the reader / writer 13, the file can be automatically read and displayed on the liquid crystal panel 20 without inputting the file number by the key operation, which is extremely convenient.

When reading the second and subsequent files, the next file is sequentially selected and read according to the file number written in the last line of each file. With this, a plurality of files can be automatically and continuously selected in a preset order, and it becomes unnecessary to input a file number by a key operation for reading the second and subsequent files.

On the other hand, when changing the file number of the file to be read first, the file number registration routine of FIG. 2 is executed by a special operation. The special operation performed here is, for example, turning on the power switch 22 while pressing the selection key 23, and may be a combination operation of other keys. When this special operation is performed, the control mode is switched to the registration mode, and the determination in step 201 of the file number registration routine of FIG. 2 is "Y".
es ”, the process proceeds to step 202, and it is determined whether or not the IC card 11 is inserted into the reader / writer 13 based on the output signal of the card detection switch 31, and“ No ”.
If so, it waits until the IC card 11 is inserted.

After that, when the IC card 11 is inserted,
The determination in step 202 is “Yes”, and step 2
In step 03, it is determined whether or not a file number has been input by operating the ten-key pad 24. If "No", the process waits until the file number is input. After this, "0" ~
When any one of the file numbers up to "254" is input, the determination in step 203 becomes "Yes", the process proceeds to step 204, and the switching transistor 22
To start supplying power to the IC card 11.

Next, in step 205, the file number is written in the file number "255" of the EEPROM 16 of the IC card 11, and then the process proceeds to step 206, in which the liquid crystal panel 20 displays, for example, "Touroku Kanryo".
Is displayed and the file number registration routine is terminated.

As described above, if the registration mode is switched by the special operation, the desired file number can be input by the key operation to rewrite the stored content of the file number "255" which is the start file number storage area. I
It is easy to rewrite the file number according to the usage of the C card 11. Moreover, since the switching to the registration mode is performed by a special operation, it is not necessary to newly provide a key dedicated to switching the registration mode, the configuration of the operation unit 21 can be the same as the conventional one, and the cost increase can be suppressed.

In the first embodiment described above, EEPRO
Although the file number written in the file number “255”, which is the start file number storage area of M16, is 1, the reading frequency is set to the file number “255” as in the second embodiment of the present invention shown in FIG. It is also possible to write a plurality of relatively high file numbers and select one file number from among the plurality of file numbers by operating the selection key 23. That is, the file number "25
Select multiple file numbers read from "5" 23
In accordance with the operation of, the screen is scrolled one by one and displayed on the liquid crystal panel 20, and the desired file number is input by the input key 36.
(See FIG. 5), the file with that file number is read and displayed on the liquid crystal panel 20.

In this case, since the plurality of file numbers stored in the file number "255" which is the start file number storage area of the EEPROM 16 are limited to those having a relatively high read frequency, the ten key operation as in the conventional case is performed. It is easier to select the file number than when inputting the file number.

In both the first and second embodiments described above, the start file number storage area of the EEPROM 16 is set to the file number "255", but it is set to any of the file numbers "0" to "254". You may do it. Needless to say, the total number of file numbers is not limited to 256.

In addition, according to the present invention, a contact type IC card is used as the IC card 11 instead of the non-contact type IC card, or another device such as a personal computer is used instead of the portable terminal as the reader / writer 13. A reader / writer connected to or incorporated in the device may be used, and various modifications can be made without departing from the scope of the invention.

[0031]

As is apparent from the above description, according to the file selection system for the IC card of claim 1 of the present invention, the IC card file is first inserted into the start file number storage area of the storage unit of the IC card after the IC card is inserted. A plurality of file numbers having a relatively high read frequency to be read by the reader / writer are stored in the memory, and the read frequency stored in the start file number storage area when the IC card is actually inserted into the reader / writer is stored . Read and display multiple relatively high file numbers from the memory of the IC card
Person operates a predetermined operation key on the operation unit of the reader / writer
Of the multiple file numbers that are read relatively frequently
By selecting one of the
No. file is read from the storage unit of the IC card to the reader / writer, so simply by inserting the IC card into the reader / writer, you can automatically compare the reading frequency without inputting the file number by key operation. More than one
You can read the file number and select the file number.
Easy to choose.

Further, in claim 2, since the file number to be selected next is written in the last line of the file of each file number stored in the storage section of the IC card,
Not only the reading of the first file, but also the reading of the second and subsequent files can be automatically and continuously selected in a preset order, and the reading of the second and subsequent files can also be performed by key operation. No need to enter a number.

[0033]

Further, in claim 3 , by specially operating the operation unit of the reader / writer, the mode is switched to the registration mode in which a desired file number can be registered in the start file number storage area of the IC card. The stored contents of the start file number storage area can be rewritten by an operation, and the file number can be easily rewritten according to the usage mode of the IC card. Moreover, since the switching to the registration mode is performed by a special operation, it is not necessary to newly provide a key dedicated to the registration mode switching, and the cost increase can be suppressed.

[Brief description of drawings]

FIG. 1 is a flowchart of a start file reading routine showing a first embodiment of the present invention.

FIG. 2 is a flowchart of a file number registration routine.

FIG. 3 is a block diagram showing the hardware configuration of the entire system.

FIG. 4 is a diagram conceptually showing stored contents of an EEPROM of an IC card.

FIG. 5 is a top view of a reader / writer.

FIG. 6 is a timing chart showing operation timing.

FIG. 7 is a diagram showing an example of data written in the EEPROM of an IC card.

FIG. 8 EE of an IC card according to the second embodiment of the present invention
The figure which shows notionally the memory contents of PROM

[Explanation of symbols]

11 ... IC card, 13 ... Reader / writer, 16 ... EEP
ROM (storage unit), 20 ... Liquid crystal panel, 21 ... Operation unit,
22 ... power switch, 23 ... selection key (operation key), 2
4 ... Numeric keypad, 27 ... CPU (control unit), 31 ... Card detection switch, 34 ... EEPROM, 36 ... Input key (operation key).

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06K 17/00

Claims (3)

(57) [Claims] 1. A plurality of files are stored in a storage unit of an IC card, the IC card is inserted into a reader / writer,
Any one of the plurality of files is selected and read by the reader / writer.
In the file selection system for the C card, the file number of the plurality of files is first read by the reader / writer after the IC card is inserted .
A start file number storage area for storing a plurality of file numbers having a relatively high read frequency is provided, and the controller of the reader / writer is stored in the start file number storage area after the IC card is inserted.
The read a relatively high multiple file number of read frequency <br/> displays Nde write, where the user of the operation unit of the reader-writer
Operate the specified operation key to
Select any one of a number of file numbers
Then, the file selection system of the IC card is characterized in that the file of the selected file number is controlled to be read from the storage unit of the IC card. 2. The file number to be selected next is written in the last line of the file of each file number stored in the storage unit of the IC card, and the control unit of the reader / writer writes the final number of each file. 2. The file selection system for an IC card according to claim 1, wherein the next file is selected and read sequentially according to the file number written in the row. 3. The registration mode in which a desired file number can be registered in the start file number storage area by specially operating the operation unit of the reader / writer, according to claim 1 or 2 . File selection system for the described IC card.