JP2001266098A - IC card and portable terminal device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an IC card capable of easily recognizing an access state to a mounted memory and a state of a free space. A controller (5) is provided on a card board (1).
And a light-emitting element (13) such as an LED that can be display-controlled by a controller. The controller drives and controls the light emitting element in response to a command given from the outside to display a state during the memory access operation, and also indicates a state of the free space of the memory based on the sector management information of the memory. Is displayed. As a result, it is possible to reduce the possibility of accidentally removing the IC card from the card socket during access and destroying the data, and to promptly prepare a spare memory card.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for extending the function of an IC card and further improving the convenience of a portable information terminal device using the IC card. For example, the present invention relates to a multimedia card (Multi Media Card) or a compatible memory thereof. It relates to technology that is effective when applied to cards and the like.

[0002]

2. Description of the Related Art A memory card, such as a multimedia card, which has been reduced in size and weight and has a simplified interface has been provided for the purpose of transferring information between a cellular phone and a digital network device. The multimedia card is, for example, an interface (1) issued by CQ publisher.
As described in the December 1999 issue), it has seven connector terminals as external interface terminals, adopts a serial interface, and reduces the load on the host system compared to the ATA interface used for PC cards and hard disks. Yes, even simpler systems can be used. In addition, the document discloses that a serial interface is employed, has nine connector terminals, and is an SD card as an upward compatible memory card of a multimedia card.
There is also a statement that a card has been proposed.

[0003]

SUMMARY OF THE INVENTION The present inventors have studied storage IC cards such as multimedia cards. According to this, the storage type IC card is PCM
CIA (Personal Computer Memory Card International)
l)), the multimedia card including the PC card has only a function as a storage card, and at present, there is no noticeable function expansion. In particular, mobile phones and PDAs (Personal
Assuming application to portable information terminal devices and the like as Digital Assistants), the user is of various ages and hierarchies. Therefore, even if it is a storage IC card, the need for more user-friendly function expansion is needed. Was found by

An object of the present invention is to provide an IC card capable of easily recognizing the state of access to a mounted memory and the state of free space.

Another object of the present invention is to improve the usability from the viewpoint of copyright protection and privacy protection of information to be stored in a memory when the data is stored in a memory and can be re-distributed and there is a risk of tampering. To provide an IC card.

Another object of the present invention is to provide an IC card which can cope with diversification of interfaces.

Another object of the present invention is to improve the usability of a storage type IC card on the portable terminal device side.

[0008] The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0009]

The following is a brief description of an outline of a typical invention among the inventions disclosed in the present application.

[1] A first aspect of the present invention is to provide the IC card itself with a display function. According to a first aspect, a state during an access operation can be displayed. That is, an IC card which has a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, and which exposes the connector terminals from a casing, includes, as the semiconductor integrated circuit, a controller connected to the connector terminals. A memory that is readable / writable via the controller, a light emitting element is provided so as to be exposed from the casing, and the controller can control the drive of the light emitting element to display a state during the memory access operation. To This makes it possible to identify the state of the built-in memory during the access operation by the IC card itself, thereby reducing the possibility of accidentally removing the IC card from the card socket during access and destroying data. become.

A second invention makes it possible to display the free space of a memory. That is, an IC card which has a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, and which exposes the connector terminals from a casing, includes, as the semiconductor integrated circuit, a controller connected to the connector terminals. A memory that is readable and writable via the controller, wherein a light emitting element is provided so as to be exposed from the casing, and the controller can control the drive of the light emitting element to display the state of the free space of the memory. It is. This makes it possible to identify the free space in the memory by the IC card itself, and to prevent the spare IC from being used before the storage area becomes full during the write operation.
You will be prompted to prepare a card in advance.

As a display mode of the free space, an LED is used.
When using a light emitting element such as a (Light Emitting Diode), the controller may display the state of the free space of the memory based on a difference between a light emitting color of the light emitting element and a difference between lighting and blinking of the light emitting element.

According to a third aspect of the invention, the display on the IC card is made to respond to an external command. That is,
An IC card having a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, wherein the IC card that exposes the connector terminals from a casing includes, as the semiconductor integrated circuit, a controller connected to the connector terminals and the controller And a memory that is readable and writable through the light emitting device. The light emitting device is provided so as to be exposed from the casing, and the controller drives and controls the light emitting device in response to a predetermined command given from the connector terminal. .

Since the display content of the light emitting element is specified by an external command, when the display content is determined in accordance with the internal state of the IC card or the information held by the IC card,
It is necessary to output necessary information from the IC card to the outside. For example, in order to display free space, the memory has a storage area for sector management information, and the controller can read at least information necessary for calculating free space in the memory from the storage area and output the information from the connector terminal. is there. In addition, in order to display the result of the determination of the presence or absence of the authorization for the storage information in the memory, the memory or the controller has a storage area for the authorization code, and the controller reads the authorization code from the storage area and reads the authorization code from the connector terminal. Output is possible. Further, in order to display the result of the determination of the validity of the password, the memory or the controller has a storage area for a password, and the controller can read the password from the storage area and output the code from the connector terminal. is there.

When one end of copyright protection of data stored in a memory is to be provided by an IC card, the controller has a security protection function of encrypting data to be written to the memory and decrypting data read from the memory. It is good to provide.

[2] A second aspect of the present invention is to improve the usability of an IC card such as a storage system on the portable terminal device side. The first invention from this viewpoint is:
The status of accessing the IC card is displayed on the portable terminal device. That is, an input operation unit, a data processing unit, a display unit, and a card socket are provided. The data processing unit performs data processing in response to an input from the input operation unit, and controls display of the display unit and a card socket. In a portable terminal device for controlling an IC card inserted in a card socket, the data processing unit includes an IC card mounted in a card socket.
The state of the access operation to the memory built in the C card can be displayed on the display unit. As the display unit, a liquid crystal display unit (LCD) of a dot matrix display or a segment display format or an LED may be adopted.

According to a second aspect of the present invention, the portable terminal device displays the free memory capacity of the IC card. That is, an input operation unit, a data processing unit, a display unit, and a card socket are provided. The data processing unit performs data processing in response to an input from the input operation unit, and controls display of the display unit and a card socket. In the portable terminal device for controlling an IC card mounted on a card socket, the data processing unit reads predetermined information from the IC card mounted on a card socket, and displays the state of free memory space based on the read information. It can be displayed in the section. A dot matrix display unit may be employed as the display unit, and the state of the memory free space may be indicated according to the type of icon or the type of pattern displayed thereon.

When the display content is determined according to the internal state of the IC card, it is necessary to output necessary information from the IC card to the outside. Regarding the display of the free space of the memory, the predetermined information includes an I
This is information included in the sector management information of the file memory realized by the C card.

A third aspect of the present invention is a portable terminal device which determines display contents according to information stored in an IC card. That is, an input operation unit, a data processing unit, a display unit, and a card socket are provided. The data processing unit performs data processing in response to an input from the input operation unit, and controls display of the display unit and a card socket. In the portable terminal device for controlling the IC card mounted on the IC card, the data processing unit can display the result of the approval or disapproval of the information read from the predetermined information storage area of the IC card mounted on the card socket. . At this time, the predetermined information storage area is an area allocated for storing an authorization code or a password.

[3] A third aspect of the present invention is to make it possible to cope with diversification of interfaces even for IC cards such as storage systems. That is, an IC card having a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, and an IC card exposing the connector terminals from a casing includes a controller connected to the connector terminals as the semiconductor integrated circuit, and And a memory which can be read / written via a controller, and an infrared transmitting / receiving module controlled to be transmitted / received by the controller is adopted as a new interface.

As an alternative interface, a wireless transmission / reception interface module whose transmission / reception is controlled by the controller may be employed.

Alternatively, a wireless communication interface capable of reducing transmission power may be employed. That is, an IC card having a card board on which a semiconductor integrated circuit is mounted and a plurality of connector terminals are formed, and the connector terminal is exposed from a casing, the semiconductor integrated circuit includes a controller connected to the connector terminal and It includes a memory that can be read / written via a controller, and further has an antenna for transmitting information, and a wireless communication control circuit for performing wireless control via the antenna in accordance with data supplied from the controller. The controller has a security function of encrypting data to be written to the memory and decrypting data read from the memory, and information read from a predetermined information storage area in response to a command given from the connector terminal. Is given to the wireless communication control circuit. The predetermined information storage area is, for example, an area on the memory or the controller allocated for storing an authorization code or a password.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS << Memory card with display function >> FIG. 1A shows a terminal surface of a memory card which is an example of an IC card according to the present invention, and FIG. The chip mounting surface of the memory card is shown. The memory card MC1 shown in the figure is a memory card compliant with a multimedia card obtained by adding a display function to a multimedia card. Although not particularly limited, the size of the memory card MC1 conforms to the multimedia card and has a thickness of 1.4.
mm and the plane dimensions conform to the standard of 24 mm × 32 mm.

The card substrate 1 of the memory card MC1 has a terminal surface of a substrate made of a resin substrate such as a glass epoxy resin.
Seven rectangular connector terminals 2 each having the same shape are arranged at equal intervals, and connection pads 3 are formed on the mounting surface in a one-to-one correspondence with the connector terminals 2. The connection pad 3 is formed of a conductive pattern such as aluminum, copper, or an iron alloy. The connector terminal 2 is formed by applying a gold or nickel plating to a conductive pattern of aluminum, copper, or an iron alloy. The connection between the connection pad 3 and the connector terminal 2 is performed by a wiring pattern (not shown) on the card substrate 1 and a through hole that conducts between the front and back of the card substrate 1.

On the mounting surface of the card substrate 1, for example, an electrically rewritable flash memory chip 4, a controller chip 5, and an LED module 13 are provided. The controller chip 5 controls a read / write operation for the flash memory chip 4 in accordance with an instruction externally provided through the connector terminal 2. In consideration of data security, the controller chip 5 further performs encryption for data written to the flash memory chip 4 and decrypts data read from the flash memory chip 4. What is necessary is just to provide a function. Further, the controller chip 5 controls display of the LED module 13. The LED module 13 is a red LE
It has two LEDs, D13r and green LED 13g, as light emitting elements. As illustrated in FIG.
The EDs 13r and 13g are exposed on the rear end surface of the casing 12 of the memory card MC1. Even when the memory card MC1 is inserted in a card slot (not shown), the LE
Lighting or blinking of D13r and 13g can be confirmed.

The controller chip 5 has a vertically long shape along the arrangement direction of the connector terminals 2, and a plurality of connectors connected to the connector terminals 2 via the connection pads 3 on the connector terminal 2 side. The interface terminal 5Pi and the memory chip 4
Memory interface terminals 5Pj connected to
And The memory chip 4 has a plurality of controller interface terminals 4Pk connected to the controller chip 5 on the controller chip 5 side. The connection pad 3 is connected to a connector interface terminal 5Pi of the controller chip 5 by a bonding wire 7. The memory interface terminal 5Pj of the controller chip 5 is connected to the controller interface terminal 4Pk of the memory chip 4 by a bonding wire 8. 9 is a relay pattern.

Further, the card substrate 1 has test terminals 10 connected to the controller chip 5 and the memory chip 4 by bonding wires (or wiring patterns) 11. The card substrate 1 is attached and fixed to the casing 12 with the mounting surface facing inward. The mounting surface is covered and protected by the casing 12, and the terminal surface is exposed from the casing 12. The connection by the bonding wires 7, 8, 11 is shown by way of example, and terminals not shown are also connected by bonding wires or the like.

Here, terminal numbers # 1 to # 7 are assigned to the connector terminals 2 on the terminal surface for convenience. In the multimedia card mode, # 1 is a reserve terminal (open or fixed at logical value "1"), # 2 is a command terminal (performs command input and response signal output), and # 3 and # 6 are circuit ground voltages (ground). ) Terminal, # 4 is power voltage supply terminal, # 5
Denotes a clock input terminal, and # 7 functions as a data input / output terminal. SPI (Serial Peripheral Interface)
In the mode, # 1 is a chip select terminal (negative logic), # 2
Is a data input terminal (for inputting data and commands from the host device to the card), # 3 and # 6 are ground voltage (ground) terminals of the circuit, # 4 is a power supply terminal, # 5 is a clock input terminal, # 7 Functions as a data output terminal (data and status output from the memory card to the host device). The multimedia card mode is an operation mode suitable for a system in which a plurality of multimedia cards are used at the same time. The identification of the multimedia card uses a card identification ID (relative address) set in the multimedia card by a host device (not shown). Used. The SPI mode is optimal for use in a simple and inexpensive system, and the selection of the multimedia card is performed by a chip selection signal supplied from the host device to the # 1 connector terminal.
In any operation mode, the controller chip 5 performs access control of the memory chip and interface control with the host device in response to a command given from the host device.

FIG. 2 shows a functional block diagram of the memory card MC1. The controller chip 5 includes an interface controller 50, an LCD driver 51, a flash memory controller 52, an encryption / decryption circuit 53,
And a security circuit 54. The interface controller 50 is connected to a host device (not shown) via the terminal 2, decodes a command given from the host device, and performs overall control inside the memory card and interface control with the host device. Such a control program or state transition control logic is provided inside the interface controller 50, although not particularly limited. It is also possible to arrange the control program in the flash memory 4.

The interface control is an interface control in the multimedia card mode or the SPI mode via the terminal 2. The overall control inside the memory card includes: first, authentication control using a security circuit; second, encryption / decryption control for encrypting write data to the flash memory chip 5 and decrypting read data; Third, access control as a file memory of the flash memory chip 4 via the flash memory controller 52, and fourth, display control via the LCD driver 51.

The access control is control in consideration of compatibility with, for example, a file system in which sectors are used as a basis for data management. For example, in order to manage data or files in sectors such as 512 bytes, the memory array of the flash memory chip 4 is used by dividing it into a data area for each 512 bytes corresponding to one sector and a management area for each data area. It has become. The management area has information indicating the use state of the sector as to whether valid data is held in the corresponding data area, pointing information to the succeeding sector, and the like. These management areas constitute the sector management table 55 as a whole. In the access control, memory operations such as reading, erasing, writing, and verifying are performed by associating the sector of the file to be accessed with the physical address of the flash memory chip 4.

In the encryption / decryption control, first, data to be written to the flash memory chip 4 is encrypted / decrypted by the encryption / decryption circuit 53.
In the flash memory chip 4, and the data read from the flash memory chip 4 is decrypted in the encryption / decryption circuit 53 by the flash memory controller 52, and the decrypted data is decrypted. And processing for enabling data to be output from the interface controller 50 to the outside.

The authentication control will be described. Assuming that the memory card MC1 is used for distribution of music information, literary information, and the like, it is desirable to consider copyright protection of such information. When deposit information, insurance information, mobile phone billing information, telephone number and the like are stored and used in a memory card, privacy protection of such information will be required.

With respect to copyright protection, for example, an authorization code relating to the copy right is notified from the host device and set in the authorization code management table 56 of the security circuit 54, and music information associated with the authorization code is downloaded from the host device. Then, the data is written to the flash memory chip 4, and the write memory address is set in the authorization management table 56 of the security circuit 54 in association with the above-mentioned authorization code. The interface controller 50 uses the authorization management table 56 to determine whether or not the memory address of the file to be accessed is a memory area associated with the authorization code on the authorization management table 56 in response to an access request from the host device. And the security circuit 54 makes a determination. If the authorization code is associated with the authorization code, the security circuit 54 requests the interface controller 50 to input the authorization code, and permits the file access unless the entered authorization code matches the authorization code held by the security circuit 54. Do not let. The authorization code management table 56 may be constituted by an electrically rewritable nonvolatile memory. The authorization code management table 56 may be arranged in the interface controller 50 or the flash memory 4.

With respect to privacy protection, for example, once a password is set in the password management table 57 of the security circuit 54 from the host device, every time the initialization processing of the memory card is completed, the first flash memory chip 4 is initialized. Upon a read access request,
The security circuit 54 requests the interface controller 50 to input a personal identification code, and until the personal identification code corresponding to the personal identification code already set in the personal identification code management table 57 is input from the outside, the security controller 54 requests the interface controller 50 to read the personal identification code. Do not start memory access control in response to The personal identification code management table 57 may be constituted by an electrically rewritable nonvolatile memory. The authorization code management table 56 may be arranged in the interface controller 50 or the flash memory 4.

The display control includes an access status display process for the flash memory chip 4, a free space display process for the flash memory chip, and an authentication result display process for displaying a result of the authentication control.

Although the display control is not particularly limited, it is performed in response to a command input in a command input wait state (standby state). The standby state is first realized after the initialization processing of one or more memory cards MC1.

First, an initialization process for the memory card by the host device will be described with reference to FIG. For example, the initialization process is performed for one or more memory cards MC1.
(S1), and thereafter,
The host device inputs a clock signal to the memory card MC1 with a predetermined number of cycles, initializes the internal circuit of the memory card MC1 (S2), and then selects the memory card MC1 (S3). In the SPI mode, the host system selects the memory card MC1 by a chip selection signal. For the selected memory card MC1, the host device outputs the card unique identification information held by the card ID register in the interface controller 50 to the host device (S4), and the host device associates the card with the card unique identification information. The relative address of the memory card MC1 is notified (S5). Thus, the memory card MC1 is distinguished from the other memory cards by its relative address, is set to a standby state (S6), and is set to a command input waiting state. On the other hand, in the multimedia card mode in the initialization process, the memory card MC is
1 is selected. The selected memory card MC1 is distinguished from other memory cards by determining the relative address of the memory card MC1 corresponding to the card-specific identification information in the same manner as described above, is set to a standby state, and waits for a command input. Is done.

FIG. 4 shows the interface controller 50.
2 shows a control flow of an access state display process according to the first embodiment.
When there is an access request from the host device in the standby state (S6) (S7), the interface controller 50 erases, writes, and writes data to the flash memory chip 4 via the flash memory controller 52 until the access request is completed. Each time an operation such as read or verify is instructed (S8), the LCD driver 51
LED module is driven to blink (S9).
For example, the blinking operation at that time is alternating red and green blinking.
Steps S8 and S9 are repeated until all the access requests from the host device are responded (S1).
0). The memory card is returned to the standby state again (S
6) The above processing is repeated as long as the standby state continues.

Since the state during the memory access operation can be displayed, the memory card MC1 itself stores the internal memory 4
Can be identified, and the occurrence of a situation in which the memory card MC1 is accidentally removed from the card socket during access and data is destroyed can be reduced.

FIG. 5 shows an interface controller 50.
3 shows a control flow of the free space display process of the flash memory chip according to FIG. In the standby state (S
6) Upon receiving a free space display command from the host device (S11), the interface controller 50 reads information indicating the use status of the sector from the sector management area of the flash memory chip 4 (S12), and It calculates whether the free space of the data area corresponds to, for example, 100 to 70%, 70 to 50%, 50 to 20%, or 20% or less (S13).
Then, the interface controller 50 drives the LCD module 51 to emit light for a predetermined period by the LCD driver 51 according to the calculation result (S14). For example, when the free space is 100% to 70%, the LED 13g is lit in green, when the free space is 70% to 50%, the LED 13g is blinking in green, and when the free space is 50% to 20%, the LED is
13r blinks red, and when the free space is 20% or less, the LED 13r is lit in an empty color. After the light emission driving for a predetermined period, the memory card MC1 is returned to the standby state (S6).

The interface controller 50 can control the driving of the LED module 13 to display the state of the free space of the memory 4.
C1 itself can identify the free space of the memory, and it is possible to prompt the user to prepare a spare memory card before the storage area becomes full during the write operation.

FIG. 6 shows the interface controller 50.
2 shows a control flow of the authentication result display processing by the above.
When the security circuit 54 starts the authentication control (S
20) That is, when the authorization code related to the copyright protection is input from the host device via the interface controller 50, or when the security circuit 54 inputs the personal identification code related to the privacy protection from the host device via the interface controller 50. The security circuit 54 causes the interface controller 50 to drive the LED module 13 to emit light via the LED driver 51 (S21). The light emission drive at this time is, but not limited to, in-phase red and green flashing. The security circuit 54 determines the validity of the entered authorization code or password, and responds to the approval of the validity (S22).
The blinking of the module 13 is stopped (S23), and the authentication result display processing ends.

As described above, the result of the authentication control can be recognized through the memory card MC1. In other words, when stored in the memory card MC1 and made possible to be circulated again and may be tampered with, the usability of the memory card MC1 is improved from the viewpoint of copyright protection and privacy protection of information to be stored in the memory. .

FIG. 7 illustrates several types of driving modes of the LED module 13. (A), (B),
The drive format shown in (C) is the control signals Sre, Sgr
In this embodiment, the LEDs 13r and 13g can be controlled independently. On the other hand, FIG. 7D shows the LED 13g and the LED 13r connected in parallel by reversing the anode and the cathode.
In this type, the power supply of the drive inverter of the drive circuit is driven at + V and -V. The drive control signal Sco is for both LEDs
It is common to 13r and 13g. In this driving method, both the LEDs 13r and 13g cannot be turned on or blinked completely in parallel, but if the frequency of the control signal Sco is constantly increased, it is possible to emit orange as a mixed color of green and red. If the control signal Sco is intermittently switched to a constant level and a high frequency, alternate blinking of red and orange and alternate blinking of green and orange can be realized. (A), (B), (C) of FIG.
When (D) of FIG. 7 is adopted instead of the above, alternate flashing of red and orange is employed instead of in-phase flashing of red and green, and alternating flashing of green and orange is performed instead of alternating flashing of red and green. Should be adopted.

<< Portable Telephone Device >> Next, a portable terminal device having a function of displaying a state of a memory card will be described. FIG. 8 shows a block diagram of the mobile phone device 100.

The voice is captured as an analog voice signal by the microphone 101, converted into a digital voice signal by the A / D converter 102, and
03 is input. The data processor 103 performs audio coding processing and channel codec processing as layer processing on the received digital audio signal, and outputs the processed signal as a transmission signal. The speech encoding process, the channel codec process, and the like are not particularly limited, but are performed using a DSP. Although not particularly shown, the data processor 103 may include an accelerator for the channel codec or the voice codec.

The transmission signal generated by the data processor 103 is modulated by, for example, a GMSK modulation circuit 104, further converted into an analog signal by a D / A converter 105, and transmitted to an antenna 107 by a high frequency transmission unit (RF transmission unit) 106. Sent through.

The received signal received by antenna 107 is
Received by a high frequency receiving unit (RF receiving unit) 108,
The signal is converted into a digital signal by the A / D converter 109 and is taken into the data processor 103. The data processor 103 performs Viterbi decoding processing, audio decoding processing, and the like,
Extract and output audio signal. Viterbi decoding processing, audio decoding processing, and the like are performed by a DSP or an accelerator not shown.

The audio signal output from the data processor 103 is converted into an analog audio signal by the D / A converter 110 and output from the speaker 111 as audio.

In the portable telephone device 10 shown in FIG. 8, the data processor 103 includes a central processing unit (CPU) 112 and a direct memory access controller (DMAC) 11.
3. a read-only memory (ROM) 114 holding an operation program and the like of the CPU 112;
Random access used for 112 work areas
It has a memory (RAM) 115 and an input / output circuit (I / O) 116 such as an input / output port and a serial interface. Although not particularly limited, the mobile phone device 100 of FIG.
In the example of the data processor 103, the ROM 114 holds operation programs such as a speech codec process for speech encoding / decoding, a channel codec process as a layer process, and a system control process. DMAC1
13 is set in the ROM 11
4 is executed by the CPU 112 executing the operation program stored therein.

Although not particularly limited, the I / O 116 of the data processor 103 includes an input switch unit 120,
The display controller 121 and the card interface controller 122 are connected. Input switch unit 1
Reference numeral 20 has a number of input switches capable of inputting numbers, characters, and the like according to the function designation. The card interface controller 122 is a card socket 123
Memory card MC2 and data processor 1 attached to
03 is performed. Here, the memory card MC2 is different from the memory card MC1 by L
The difference is that the system does not include the DE module 13 and does not have a display control function of the interface controller 50, that is, a control function of the access state display processing, the free space display processing, and the authentication result display processing. The display control is performed by the data processor 103 of the mobile phone device 100.
This is performed using the display controller 121, the liquid crystal display 125, and the LED module 126. In the mobile phone device 100, in addition to the display control function of the access state, the free space, and the authentication result, the data processor 103 displays the status of the mobile phone device 100 such as a transmission phone number, a called phone number, a communication state, and a battery voltage. Display controller 12
1 has a function of appropriately controlling the display on the liquid crystal display 125 via the LCD 1. In addition, the data processor 103 displays a red LED 1 in the charging incomplete state to display the state of the battery charging operation by the LED module 126.
26r is turned on, and a green LED is
Turn on 126g. The driving format of the LED module 126 may be configured in the same manner as in FIG.

The control function of the access state display processing, the free space display processing, and the authentication result display processing by the data processor 103 will be described. The display control target by these processes may be the LED module 126 as described above. Alternatively, a liquid crystal display 125 may be used.

The access state display processing by the data processor 103 is performed as follows. That is, when the data processor 103 issues the access command to the memory card MC2, the data processor 103 drives the LED module 126 to blink between the time when a response is returned from the memory card MC2 and the time when the end of access is notified. For example, the blinking operation at that time is alternating red and green blinking.

The display mode of the free space display by the data processor 103 is not particularly limited, but is displayed on the liquid crystal display 125 by icon display represented by (A) to (C) of FIG. 9 or (A) of FIG. (C) through the level indicator display. In the icon display, the area of the black region with respect to the size of the entire icon indicates the free space as a relative value, and a plurality of icons having different black region area ratios are selected according to the decrease in the free space,
It is designed to be displayed. In the level indicator display, the number of black segments relative to the number of the plurality of segments indicates the free space as a relative value, and the number of black segments is reduced one by one as the free space decreases. The display mode of the free space display may be the aforementioned LED display.

FIG. 11 shows a control flow of the free capacity display processing of the flash memory chip built in the memory card MC2 by the data processor 103. Memory card M
In the standby state of C2, the data processor 10
3 issues a free space information acquisition command to the memory card MC2 (S30). Thereby, the memory card MC2
The interface controller reads information indicating the usage status of the sector from the sector management area of the flash memory chip and returns the information to the data processor 103.
The data processor 103 inputs information indicating the sector usage status (S31), determines the free space in the data area of the flash memory chip based on the information (S32), and displays display data responding to the determined free space to the display controller 121. (S33), and the free space is displayed on the liquid crystal display 125 in accordance with the loaded display data (S34). If the icon is displayed, the icon data corresponding to the free space at that time is selected and displayed at a predetermined position on the liquid crystal display 125. If the level indicator is displayed, the number of pieces corresponding to the free space at that time is displayed. It is displayed in black on the liquid crystal display 125.
The data processor 103 issues the free space information acquisition command to the memory card MC2 in the card socket 123.
Is mounted at predetermined intervals, and the immediately preceding display data is maintained in the register between intervals, so that the free capacity display can be always performed.

FIG. 12 shows a control flow of the authentication result display processing by the data processor 103. When the security circuit of the memory card MC2 starts the authentication control, that is, the data processor 103 supplies the authorization code relating to the copyright protection to the interface controller of the memory card MC2, or the data processor 103 transmits the security code relating to the privacy protection. When supplying the security circuit via the interface controller of the memory card MC2 (S35), the data processor 103 causes the liquid crystal display 125 to display "authentication in progress" via the display controller 121 (S36). The security circuit determines the validity of the entered authorization code or password. Data processor 103
Upon receiving the result of the validity determination by the security circuit (S37), this time, "Authentication OK" is displayed on the liquid crystal display 125 via the display controller 121, and the indication is maintained for a certain period of time (S38). The authentication result display processing ends.

As described above, the usability of the memory card MC2 such as the access status display, the free space display, and the authentication result display can be improved on the portable telephone device 100 side.

<< Diversification of Interface >> Next, a memory card having a non-contact interface in addition to or instead of the connector terminal will be described.

FIG. 13A shows a terminal surface of another memory card, and FIG. 13B shows a chip mounting surface of the memory card. The memory card MC3 shown in the figure is a memory card that realizes upward compatibility with a multimedia card having an 8-bit data terminal and has a function of adding an infrared interface. The difference of the terminal surface from the memory card MC1 is that 13 connector terminals 2 and 13 connection pads 3 are arranged. The terminal numbers # 1 to # 7 have the same layout configuration as the multimedia card compliant memory card MC1, and the added six connector terminals are terminal numbers # 8 to # 13. A flash memory chip 4, a controller chip 5A, and an infrared transmission / reception (IrDA) module 14 are provided on the mounting surface of the card substrate 1A. IrD
The A module includes an infrared light emitting diode 14tr and an infrared photodiode 14rc.

The connector terminals 2 of # 1 to # 7 form a first row of connector terminals with respect to the card board 1A.
The added connector terminals 2 of # 8 to # 13 constitute a second connector terminal row spaced apart from the first connector terminal row. The size of the connector terminals 2 of # 9 to # 12 is the same as the size of the other connector terminals 2. The arrangement of the connector terminals in the column direction of the first connector terminal row and that of the second connector terminal row are shifted from each other in the column direction. Focusing on the inter-terminal region of the connector terminal 2,
The arrangement of the inter-terminal areas of the first connector terminal row and the arrangement of the inter-terminal areas of the second connector terminal row are shifted from each other in the column direction. In short, the connector terminals in the first and second rows are arranged in a staggered manner between the rows.

The memory card MC3 has terminals # 2 to #
7 is assigned to the same function as the multimedia card mode of the multimedia card compliant memory card MC1,
The terminal # 1 which was a reserved terminal in the multimedia card mode is replaced with a data terminal DATA of the fourth bit.
3, added terminals # 8, # 9, # 10, # 11, # 1
2, # 13 are the data terminals DATA of the second bit sequentially
1, a fifth bit data terminal DATA4, a seventh bit data terminal DATA6, an eighth bit data terminal DATA7, a sixth bit data terminal DATA5, and a second bit data terminal DATA1. The data terminal DATA0 of the first bit is the same terminal # 7 as in the multimedia card mode. Therefore, this memory card M
C3 is different from the memory card MC1 in that data input / output is enabled in 8 bits in parallel in the multimedia card mode of the memory card MC1.

Further, the memory card MC3 has a backward compatible mode with respect to the multimedia card compliant memory card MC1. That is, the controller chip 5A
Is a one-bit mode using one bit # 7 of the eight-bit data terminals # 1 and # 7 to # 13, and four of the eight-bit data terminals # 1 and # 7 to # 13. 4-bit mode for performing 4-bit parallel input / output using bits # 1, # 7, # 8, and # 13, and 8-bit parallel input / output using the 8-bit data terminals # 1, # 7 to # 13 And an 8-bit mode.

The operation mode may be set in response to a state of a predetermined connector terminal or a command input state from the predetermined connector terminal. For example, a memory card M
When C3 is inserted into the card socket of the memory card MC1 conforming to the multimedia card, the terminals # 8 to # 13 become floating. Therefore, when the power is turned on, the controller chip 5A can recognize the difference from the 4-bit mode. By detecting the floating state of both or one of the connector terminals 2 of DATA2 in a software or hardware manner (using software exclusively or using a hardware configuration exclusively), the memory card MC3 stores the one bit in the memory card MC3. You only need to set the mode.

When the memory card MC3 is inserted into a dedicated card socket, the terminals # 9 to # 12
Is electrically connected to the socket terminal of the card socket, the controller chip 5B detects that a specific signal or command is supplied from the host device to at least all or a part of the data terminals DATSA4 to DATA7 when the power is turned on. 8 on the memory card MC3
You only need to set the bit mode.

The controller chip 5A differs from the controller chip 5 in that the number of data input / output terminals connected to the connection pads 3 is eight. Other configurations are shown in FIG.
The same reference numerals are given to circuit elements having the same function, and detailed description thereof will be omitted.

FIG. 14 is a functional block diagram of the memory card MC3. The controller chip 5A includes an interface controller 50A, an IrDA controller 51A, a flash memory controller 52,
It has a decryption circuit 53 and a security circuit 54.
The interface controller 50A is connected to a host device (not shown) via the terminal 2, decodes a command given from the host device, and performs overall control inside the memory card and interface control with the host device. The overall control inside the memory card is the same as that of the memory card MC1, and includes authentication control using a security circuit, encryption / decryption control for the flash memory chip 4, and file control of the flash memory chip 4 via the flash memory controller 52. This is access control as a memory. A control program or state transition control logic for overall control inside the memory card and interface control with the host device is provided inside the interface controller 50A, although not particularly limited. It is also possible to arrange the control program in the flash memory 4.

The interface control includes an interface control in the multimedia card mode or the SPI mode via the terminal 2 similar to the memory card MC1, and an infrared interface control using the IrDA module 14. An operation program for controlling the infrared interface by the IrDA controller 51A is stored in, for example, the flash memory 4 or the interface controller 50A. The infrared interface control is performed, for example, by an infrared data association (Infrar
ed Data Association) 2.4-11
Complies with known communication standards of 5.2Kbps medium and low speed,
The RZ (Return to Zero) method is adopted as the demultiplexing method, and the pulse width can be varied from 1.6 μsec to 3/16 of the bit time.

The memory card MC3 is inserted in, for example, a card slot of the portable telephone device 100 as represented in FIG. The setting of communication control conditions and the instruction of the communication operation to the IrDA controller 51A are given by commands from the data processor 103 via the interface controller 50A.

The memory card MC3 mounted on the portable telephone device 100 can perform infrared communication with a personal computer 200 having an infrared communication function as shown in FIG. 16, for example. Not only is it possible to transfer telephone directory data to each other, but also to a personal computer 20.
0, when a mobile phone modem circuit or a mobile phone modem card is installed, the mobile phone device 100 is used as a communication terminal of the modem.
Data communication between the mobile phone device 100 and the personal computer 200 can be performed by infrared rays.

The IC card equipped with the infrared communication function is not limited to the storage IC card represented by the memory card MC3. For example, if an infrared communication function is added to a modem card so that it can be mounted on a mobile phone, the personal computer 200 can be used as a communication terminal without using a mobile phone-compatible modem in the personal computer 200. Data communication.

The memory card MC3 or I3
The C card is a wireless LAN (Local Area Net) using infrared rays.
Work) can be applied, and the communication protocol for that may be stored in the IrDA controller 51A or the interface controller 50A in ROM or the like.

FIG. 17 is a block diagram showing a memory card MC4 supporting a radio wave (electromagnetic wave) LAN as another example of the wireless LAN. The memory card MC4 has a radio LAN interface module 16 and an antenna 17 on a card board, and also has a ferroelectric memory chip 4B called a FRAM (registered trademark) and a controller chip 5B. Controller chip 5B and radio wave L
The AN interface module 16 may be constituted by one chip.

In the ferroelectric memory chip, for example, PZT (lead zirconate titanate) is used for a capacitor serving as a storage element.
This is a memory using ferroelectric material such as, which uses the polarization phenomenon of ferroelectric material and stores two stable states of spontaneous polarization by associating logic values 1 and 0 with each other. Implement a RAM. A ferroelectric memory chip has features such as high-speed rewriting and low power consumption as compared with a nonvolatile memory such as a flash memory.

Radio LAN interface module 16
Transmits the transmission signal provided from the interface controller 50B as a high-frequency signal from the antenna 17, detects the high-frequency signal received by the antenna 17, amplifies and quantizes the detected signal component, and provides the same to the interface controller 50B. Interface controller 50
B gives data to be transmitted to the wireless LAN interface module 16 according to a wireless transmission / reception command given from the host device, and inputs and processes data received from the wireless LAN interface module 16. The wireless LAN interface module 16 may be used for input / output of a security code for the authentication control, or may be used for output of an authorization code for the access control.

The frequency band of a wireless LAN such as a radio LAN is a 2.4 GHz band, a 19 GHz band, or the like. Wireless LAN
Is usually smaller than the communication area of the portable telephone device, so that the transmission power is small, and the communication cost is low because the portable telephone network is not used. In this sense, an IC card such as a memory card MC4 provided with an interface means by a wireless LAN is used for the mobile phone device 2.
Mounting data on the devices 00A and 200B and performing mutual data communication as shown in FIG. 18 has the advantages of low power consumption and reduced communication costs.

It should be noted that an EEPROM controller and an EEPROM chip may be used instead of the ferroelectric memory controller indicated by 52B and the ferroelectric memory chip indicated by 4B.

FIGS. 19 and 20 show specific examples of the antenna 17. The example of FIG. 19 is an example in which a single-layer wiring board in which a conductive pattern is formed only on the terminal surface having the terminal 2 is used. The antenna 17 is formed as a conductive pattern on the terminal surface. The radio LAN interface module 16 is provided on the mounting surface of the wiring board, and the antenna 17
Are exposed on the mounting surface through the opening 17A of the substrate,
That part is radio wave LA by bonding wire 17B.
It is connected to the bonding pad of the N interface module 16. In the figure, illustration of the ferroelectric memory 4B is omitted.

FIG. 20 shows an example in which a two-layer wiring board in which conductive patterns are formed on both the terminal surface and the mounting surface is used. The antenna 17 is formed as a conductive pattern on the terminal surface. The radio LAN interface module 16 is provided on the mounting surface of the wiring board. Both ends of the antenna 17 are communicated with the wiring pattern 17D on the mounting surface via through holes 17C, and the end of the wiring pattern 17D is connected to the radio LAN interface by bonding wires 17B. It is connected to the bonding pad of the interface module 16. In the figure, illustration of the ferroelectric memory 4B is omitted.

FIG. 21 shows a memory card MC5 employing a wireless communication control circuit capable of reducing transmission power. The memory card MC5 has a wireless communication control circuit 18 and an antenna 19 on a card substrate, and also has a flash memory chip 4 and a controller chip 5C. The controller chip 5C and the wireless communication control circuit 18 may be configured as one chip. The wireless communication control circuit 18 performs transmission or reception according to the data supplied from the interface controller 50C in a manner in which carrier information is placed on the antenna 19. The predetermined information storage area is, for example, a table 56, which is allocated for storing an authorization code or a password.
57, or the data area of the flash memory 4.

For example, the antenna 19 is a dipole antenna, is formed as a conductive pattern on a card substrate, and is shaped so as to generate, for example, a half-wave current distribution of radio waves emitted from the outside. Wireless communication control circuit 1
Reference numeral 8 denotes, for example, a switching transistor disposed between dipole antennas for antenna control, and the antenna 19 is short-circuited by closing the switching transistor, and the characteristic impedance of the antenna 19 is set to a predetermined value by opening the switching transistor. . The switching control signal of the switching transistor is a transmission signal having a logical value of 1 or 0 given from the interface controller 50C. Therefore, the terminating resistance of the dipole antenna 19 is set to 0 or a predetermined value according to the signal to be transmitted. When the radiation impedance of the dipole antenna 19 is equal to the load impedance, the maximum reception power is obtained. However, when the load impedance is 0, the reception voltage output to the antenna terminal becomes 0, and the constant current flowing through the antenna itself is constant. The wave ratio increases and the re-radiated power increases. That is, at this time, the dipole antenna 19 operates as a reflector, and if a signal of a predetermined frequency is radiated from the outside to the dipole antenna 19, the reflected wave can be received outside. If the reflected wave that changes with time is received outside, the received signal can be regarded as a signal modulated according to the impedance change of the dipole antenna 19, in other words, a signal transmitted by the interface controller 50C. . As described above, since the dipole antenna 19 does not require transmission power, low power consumption may be realized.

Although the invention made by the inventor has been specifically described based on the embodiment, it is needless to say that the present invention is not limited to the embodiment and can be variously modified without departing from the gist of the invention. No.

For example, an IC card is not limited to a memory card or a modem card, and the present invention can be applied to a composite card having a memory card function and a modem card function. The memory chip is not limited to a nonvolatile memory, but may be a volatile RAM. Also, the size of the card board,
The number of connector terminals, the function of the connector terminals, and the like are not limited to the above description, and can be appropriately changed. The wireless communication control is not limited to the antenna control for performing the characteristic impedance conversion of the antenna as described above.

[0084]

The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

That is, it is possible to easily recognize the status of access to the memory mounted on the IC card and the state of the free space of the memory mounted on the IC card.

When the information stored in the memory of the IC card is circulated and there is a risk of tampering, an IC card with good usability is realized from the viewpoint of copyright protection and privacy protection of information to be stored in the memory. Can do things.

It is possible to cope with diversification of IC card interfaces. Further, the usability of an IC card such as a storage system can be improved on the portable terminal device side.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a terminal surface and a chip mounting surface of a memory card which is an example of an IC card according to the present invention.

FIG. 2 is a functional block diagram of a memory card according to a first example.

FIG. 3 is a flowchart illustrating an initialization process for a memory card performed by a host device.

FIG. 4 is a flowchart showing an access state display process by an interface controller.

FIG. 5 is a flowchart showing a free capacity display process of a flash memory chip by an interface controller.

FIG. 6 is a flowchart showing the authentication result display processing by the interface controller.

FIG. 7 is an explanatory diagram illustrating a drive format of the LED module.

FIG. 8 is a block diagram illustrating an example of a mobile phone device.

FIG. 9 is an explanatory diagram illustrating a display mode in a case where the free space display by the data processor is performed by icon display.

FIG. 10 is an explanatory diagram exemplifying a display mode when a free space display by a data processor is performed by a level indicator display.

FIG. 11 is a flowchart showing a free capacity display process of a flash memory chip with a built-in memory card by a data processor.

FIG. 12 is a flowchart showing the authentication result display processing by the data processor.

FIG. 13 is an explanatory diagram showing a memory card according to a second example in a terminal surface and a chip mounting surface.

FIG. 14 is a functional block diagram of the memory card of FIG. 13;

FIG. 15 is a perspective view showing a state in which the memory card of FIG. 13 is inserted into a card slot of the mobile phone device.

FIG. 16 is a perspective view illustrating a state in which infrared communication is performed between a memory card mounted on a mobile phone device and a personal computer.

FIG. 17 is a block diagram of a memory card MC4 according to a third example that supports a radio LAN.

FIG. 18 is a perspective view showing a communication state using a memory card MC4 provided with an interface unit by a wireless LAN.

FIG. 19 is an explanatory view illustrating an antenna formed of a conductive pattern on a single-layer wiring board of a memory card.

FIG. 20 is an explanatory view illustrating an antenna formed of a conductive pattern on a two-layer wiring board of a memory card.

FIG. 21 is a block diagram of a memory card according to a fourth example employing an antenna control circuit capable of reducing transmission power.

FIG. 22 is a perspective view showing a state where LEDs are exposed from the rear end surface of the memory card.

[Explanation of symbols]

 MC1 Memory card 1 Card board 2 Connector terminal 5 Controller chip 4 Flash memory chip 13 LED module 50 Interface controller 51 LED driver 52 Flash memory controller 53 Encryption / decryption circuit 54 Security circuit 55 Sector management table 56 Authorization code management table 57 Password Code management table MC2 Memory card 103 Data processor 121 Display controller 122 Card interface controller 123 Card socket 125 Liquid crystal display 126 LED module MC3 Memory card 14 IrDA module 5A Controller chip 50A Interface controller 51A IrDA controller MC4 Memory card 4B Strong Collector memory chip 5B controller chip 16 radio LAN interface module 17 antenna 50B interface controller 52B ferroelectric memory controller MC5 memory card 5C controller chip 18 wireless communication control circuit 19 antenna 50C interface controller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Atsushi Shiraishi 5-22-1, Josuihoncho, Kodaira-shi, Tokyo Inside Hitachi Super LSI Systems Co., Ltd. (72) Inventor Yosuke Yukawa Tokyo 5-20-1, Josuihoncho, Kodaira-shi F-term in Hitachi Semiconductor Co., Ltd. (Reference) 5B035 AA00 AA06 BA02 BA09 BB09 BC00 CA23 CA25 CA38 5B058 CA01 CA13 KA02 KA06 KA08 KA33 KA35 YA20 5K027 AA11 BB01 FF01MM

Claims (19)

[Claims] An access status display includes a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, wherein the connector terminals are exposed from a casing.
A C card, wherein the semiconductor integrated circuit includes a controller connected to the connector terminal, and a memory readable / writable via the controller; and a light emitting element is provided so as to be exposed from the casing. An IC card, wherein a controller can drive and control the light emitting element to display a state during the memory access operation. 2. An IC card having a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, wherein the connector terminals are exposed from a casing. A controller connected to the connector terminal and a memory readable / writable via the controller, a light-emitting element is provided so as to be exposed from the casing, and the controller controls the drive of the light-emitting element and An IC card capable of displaying a state of a free space of a memory. 3. The controller according to claim 2, wherein the controller is capable of displaying the state of the free space of the memory based on a difference between the emission colors of the light emitting elements and a difference between lighting and blinking of the light emitting elements. IC card. 4. An IC card having a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, and wherein the connector terminals are exposed from a casing. Includes a controller connected to the connector terminal and a memory readable / writable via the controller, a light emitting element is provided so as to be exposed from the casing, and the controller is provided with a predetermined signal provided from the connector terminal. An IC card wherein the light emitting element can be driven and controlled in response to a command. 5. The sector management information wherein the memory has a storage area for sector management information, and the controller can read at least information necessary for calculating a free space of the memory from the storage area and output the information from the connector terminal. The IC card according to claim 4, wherein 6. An authorization code, wherein the memory or the controller has an area for storing an authorization code, and the controller can read the authorization code from the storage area and output the authorization code from the connector terminal. Item 7. The IC card according to Item 4. 7. The security code, wherein the memory or the controller has a storage area for a security code, and the controller can read the security code from the storage area and output the security code from the connector terminal. Item 7. The IC card according to Item 4. 8. The apparatus according to claim 1, wherein the controller has a security function of encrypting data to be written to the memory and decrypting data read from the memory. IC card. 9. A portable terminal / access display having an input operation unit, a data processing unit, a display unit, and a card socket, wherein the data processing unit performs data processing in response to an input from the input operation unit. A portable terminal device for performing display control of the display unit and control of an IC card mounted on a card socket, wherein the data processing unit changes a state during an access operation to a memory built in the IC card mounted on the card socket. A data processing terminal device capable of displaying on the display unit. 10. The portable terminal device according to claim 9, wherein the display unit is a dot matrix display unit or an LED. 11. A portable terminal / free space display, comprising: an input operation unit, a data processing unit, a display unit, and a card socket, wherein the data processing unit processes data in response to an input from the input operation unit. A portable terminal device for performing display control of the display unit and control of an IC card mounted on a card socket, wherein the data processing unit reads predetermined information from the IC card mounted on the card socket, and reads the information. A portable terminal device capable of displaying the state of the free memory space on the display unit based on the information obtained. 12. The display unit is a dot matrix display unit, and the state of the memory free space is displayed according to the type of an icon or the type of a pattern displayed on the dot matrix display unit. The mobile terminal device according to claim 11, wherein: 13. The mobile phone according to claim 11, wherein said predetermined information is information included in sector management information of a file memory realized by an IC card mounted on a card socket. Terminal device. 14. (Authorization) An input operation unit, a data processing unit, a display unit, and a card socket, wherein the data processing unit performs data processing in response to an input from the input operation unit, and the display unit A portable terminal device for controlling display of an IC card and controlling an IC card mounted on a card socket, wherein the data processing unit validates information read from a predetermined information storage area of the IC card mounted on the card socket. A portable terminal device capable of displaying a result of approval / disapproval. 15. The portable terminal device according to claim 14, wherein the predetermined information storage area is an area allocated for storing an authorization code or a security code. 16. An IC card having a card board on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, wherein the connector terminals are exposed from a casing. An IC card comprising: a controller connected to a terminal; and a memory readable / writable via the controller, and an infrared transmitting / receiving module controlled to be transmitted / received by the controller. 17. An IC card having a card substrate on which a (wireless) semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, wherein said connector terminals are exposed from a casing, wherein said semiconductor integrated circuit is said connector. An IC card comprising: a controller connected to a terminal; and a memory readable / writable via the controller; and a wireless transmission / reception interface module controlled to transmit / receive by the controller. . 18. An IC card having a card substrate on which a semiconductor integrated circuit is mounted and on which a plurality of connector terminals are formed, and wherein the connector terminals are exposed from a casing. An antenna for transmitting and receiving information, including a controller connected to a connector terminal and a memory readable and writable via the controller, and a radio for wirelessly controlling the antenna via the antenna according to data supplied from the controller A communication control circuit, wherein the controller has a security function of encrypting data to be written to the memory and decrypting data read from the memory, and has a predetermined function in response to a command given from the connector terminal. Of information read from the information storage area of the wireless communication control circuit An IC card characterized in that it is a card. 19. The IC card according to claim 18, wherein the predetermined information storage area is an area on the memory or the controller allocated for storing an authorization code or a security code.