JP2010198218A - Reader/writer and reader/writer system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent application of high voltage from adversely affecting an IC chip or the like without complicating, enlarging, or cost-increasing an IC card or reader/writer when a display device is mounted on a card surface. <P>SOLUTION: In the IC card, a display is arranged on the surface of the card, and a contact terminal is arranged on the backside of the card. In response to the detection results when an IC card detection unit detects release of mounting of the IC card, voltage supply from a second terminal to a high voltage contact terminal of the IC card is blocked earlier than voltage supply from a first terminal of the reader/writer to a first contact terminal of the IC card. The display surface of the display is front, so that recognition during rewriting of the display is allowed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a reader / writer and a reader / writer system for reading and writing data of an IC card including a display device and rewriting the display of the display device.

  IC cards are used in a wide variety of fields because they have a larger storage capacity than magnetic cards and are superior in confidentiality and safety. Particularly in recent years, contactless IC cards that perform electromagnetic induction type wireless communication with reader / writers are widely used.

  As a reader / writer of an IC card, for example, Patent Document 1 discloses a recording / reproducing apparatus in which a hybrid card including an optical recording layer and an IC is slid in the horizontal direction and the leading end of the card is inserted into a slot.

JP-A-11-161744 JP 2008-217106 A

  By the way, when using an IC card, how to visualize electronic data stored therein is an important issue. The present applicant has proposed that a non-contact IC card is provided with a display (specifically, electronic paper) and that a display control IC chip is built in (see, for example, Patent Document 2).

  Electronic paper remains displayed even without power supply, but power is required when rewriting the display. The voltage required for rewriting the display is higher than the driving voltage for other devices such as an IC chip. That is, both a low voltage device (IC chip or the like) and a high voltage device (display) are mounted on the IC card.

  When both the low voltage device and the high voltage device are mounted in this way, if the low voltage is cut off for some reason and only the high voltage is applied, the low voltage device may be adversely affected.

  In order to protect the low voltage device, for example, a protection circuit may be mounted in the IC card. However, this causes factors such as a complicated circuit in the IC card, an increase in the size of the IC card, and an increase in cost.

  The present invention has been made in view of the situation as described above. When a high voltage device is mounted, the IC card can be protected without making the IC card complicated, large, or costly. The purpose is to.

  The present invention is a reader / writer for reading and writing data of an IC card including a display device and rewriting the display of the display device, the first terminal being in contact with the first contact terminal of the IC card, A second terminal that contacts the high-voltage contact terminal of the IC card; and an IC card detection unit that detects the release of the IC card, and the detection that detects the release of the IC card by the IC card detection unit Depending on the result, the voltage supply from the second terminal to the high voltage contact terminal of the IC card is cut off before the voltage supply from the first terminal to the first contact terminal of the IC card. It is characterized by that.

  According to the present invention, when a high voltage device is mounted, an IC chip or the like can be protected without making the IC card complicated, large, or costly.

It is a figure showing the whole reader-writer system composition concerning an embodiment. 1 is an external view of an IC card according to an embodiment. 1 is an external view of a reader / writer according to an embodiment. It is a side view for demonstrating mounting | wearing and removal of the IC card with respect to a reader / writer. It is a figure which shows the example of a display by the electronic paper of an IC card. It is a flowchart which shows the operation | movement process by the interruption | blocking order control part. It is a figure which shows the structural example of another reader / writer and an IC card. It is a side view for demonstrating mounting | wearing of the IC card with respect to another reader / writer.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram showing an overall configuration of a reader / writer system according to the present embodiment. In the reader / writer system 10 according to the present embodiment, a personal computer (hereinafter referred to as “PC”) 200 as an information processing apparatus in each home accesses the server 100 via the Internet, purchases electronic value, A mode in which the electronic value is written to the non-contact IC card 300 via the reader / writer 400 will be described.

  A server 100 sells electronic value via the Internet. Electronic values include train tickets, designated tickets, limited express tickets, commuter passes, and electronic tickets for various events.

Reference numeral 200 denotes a PC in which a WEB browser is installed. The PC 200 can access the server 100 via the Internet from the PC 200 to purchase and download electronic value. The PC 200 includes a CPU, ROM, RAM, hard disk, and the like.
In addition, as a functional configuration of the PC 200, an R / W control unit 201 that controls the reader / writer 400 and an interruption order control that controls an order of interrupting a voltage supplied from the reader / writer 400 to the non-contact IC card 300. Part 202. These functional configurations are realized by the CPU of the PC 200 executing a program stored in the hard disk.

Reference numeral 300 denotes a non-contact IC card (hereinafter simply referred to as “IC card”), which includes an electronic paper 301 that is a display device. The IC card 300 includes an antenna (not shown) formed of a loop coil and a non-contact chip 302 as a first IC chip, and performs electromagnetic induction type wireless communication (non-contact communication) with the reader / writer 400. The non-contact chip 302 includes a CPU, a ROM, a RAM, and the like, and is driven by electric power obtained by an electromagnetic induction method. The non-contact chip 302 acquires the above-described actual electronic value data from the R / W control unit 201 of the PC 200 via the reader / writer 400 by wireless communication. The non-contact chip 302 writes the acquired actual data of electronic value in a memory such as a RAM.
The IC card 300 includes a contact terminal 303 and a contact chip 304 as a second IC chip, and performs contact communication with the reader / writer 400. The contact chip 304 includes a CPU, a ROM, a RAM, and the like, and is driven by electric power supplied from the reader / writer 400 by contact communication. The contact chip 304 acquires display data corresponding to the electronic value described above from the R / W control unit 201 of the PC 200 via the reader / writer 400 through contact communication. The contact chip 304 rewrites the display of the electronic paper 301 based on the acquired display data.

  A reader / writer 400 is connected to the PC 200 via the USB cable 20. The reader / writer 400 includes an antenna and a non-contact communication unit 401, and performs electromagnetic induction type wireless communication (non-contact communication) with the IC card 300. The reader / writer 400 includes a terminal 402 that contacts the contact terminal 303 of the IC card 300 and a built-in contact communication unit 403, and performs contact communication with the IC card 300. The reader / writer 400 includes an IC card detection unit 407. The IC card detection unit 407 detects that the IC card 300 is attached to the reader / writer 400. Further, the IC card detection unit 407 detects that the IC card 300 that has been mounted is detached, that is, that the mounting is released.

  The reader / writer 400 reads / writes data (electronic value) of the IC card 300 and rewrites the display of the electronic paper 301 under the control of the R / W control unit 201 of the PC 200 with the IC card 300 mounted. .

  At this time, the reader / writer 400 performs reading / writing of the electronic value by wireless communication via the antenna, and rewriting display of the electronic paper 301 corresponding to the electronic value by contact communication via the contact terminal 303 and the terminal 402. At the time of rewriting the display of the electronic paper 301, power is required, and the voltage is higher than the driving voltages for the chips 302, 304 and the like. It is not realistic to generate such a high voltage by the electromagnetic induction method (for example, the number of turns of the loop coil must be increased, which is contrary to the thinning of the IC card 300). This is done by contact communication.

  FIG. 2 shows the appearance of the IC card 300. As shown in FIG. 2A, electronic paper 301 is provided on the surface of the card body 305. As will be described later, since the contact terminal 303 is not provided on the surface of the card body 305, the electronic paper 301 can be arranged over a wide area on the surface of the card body 305 as shown in FIG. Can increase the sex.

  As shown in FIG. 2B, a contact terminal 303 is provided on the back surface of the card body 305. The contact terminal 303 shown in FIG. 2B has a plurality (eight) contact terminals 303a to 303h. These contact terminals 303a to 303h form the contact terminal 303 shown in FIG.

First, as the contact terminal 303, a logic power supply contact terminal 303a that supplies power to the contact chip 304, a contact terminal 303c for sending a clock signal (instruction information), a ground contact terminal 303e, and an electronic paper 301 An input / output contact terminal 303f for inputting / outputting display data is assigned. These contact terminals 303a, 303c, 303e, and 303f correspond to first contact terminals.
On the other hand, a contact terminal for supplying a display driving voltage for the electronic paper 301 is assigned as the contact terminal 303. In the illustrated example, a contact terminal 303d for applying a voltage in the vertical direction of the electronic paper 301 and a contact terminal 303h for applying a voltage in the horizontal direction are separated. These contact terminals 303d and 303h correspond to second contact terminals.
The contact terminals 303b and 303g are contact terminals to which no function is assigned. Further, contact terminals other than those described here may be assigned to the contact terminals 303b and 303g. Further, the assignment of the contact terminals 303 is not limited to the assignment described above.

  Here, the second contact terminals 303d and 303h (hereinafter simply referred to as second contact terminals) are connected to the first contact terminals 303a, 303c, 303e and 303f (hereinafter simply referred to as first contact terminals). Compared to high-voltage contact terminals. Although it depends on the specifications of the electronic paper 301, a voltage of about 3 to 5V may be applied to the first contact terminal, whereas the second contact terminal is used for display driving of about 35V in the vertical direction of the electronic paper 301. It is necessary to apply a voltage and to apply a display driving voltage of about 70 V in the lateral direction.

  FIG. 3 shows the external appearance of the reader / writer 400. The reader / writer 400 includes a base 404 on which the IC card 300 is placed. On the base 404, insertion portions 405a and 405b into which corners of one end in the longitudinal direction of the IC card 300 (hereinafter simply referred to as “one end”) are respectively inserted, and the other end in the longitudinal direction of the IC card 300 ( Hereinafter, a locking portion 406 that locks the other end) is provided. The base 404, the insertion portions 405a and 405b, and the locking portion 406 are formed of resin.

  The insertion portions 405 a and 405 b are formed in a bag shape or pocket shape that opens toward the locking portion 406, specifically toward the center side of the base 404, so that a corner at one end of the IC card 300 can be inserted. It has become.

  The locking portion 406 includes an elastically deformable plate-like support portion 406a extending upward from the base 404, and a head portion 406b integrally formed at the upper end of the support portion 406a. The head portion 406b protrudes toward the insertion portions 405a and 405b, a locking surface 406c that is a horizontal surface is formed on the lower surface, and an inclined surface 406d is formed on the upper surface. Further, a release lever 406e is integrally formed behind the support portion 406a (on the side opposite to the insertion portions 405a and 405b). When the release lever 406e is pressed, the support portion 406a is elastically deformed so as to warp backward. be able to.

A terminal 402 corresponding to the contact terminal 303 of the IC card 300 is disposed on the base 404. The terminal 402 has a plurality (eight) of terminals 402 a to 402 h corresponding to the contact terminals 303 of the IC card 300. These terminals 402a to 402h form the terminal 402 shown in FIG.
When the IC card 300 is attached to the reader / writer 400, the terminals 402a to 402h come into contact with the contact terminals 303a to 303h of the IC card 300, respectively. Specifically, the first contact terminals 303a, 303c, 303e, and 303f of the IC card 300 are in contact with the terminals 402a, 402c, 402e, and 402f, respectively. These terminals 402a, 402c, 402e, and 402f correspond to the first terminals.
On the other hand, the second contact terminals 303d and 303h of the IC card 300 are in contact with the terminals 402d and 402h, respectively. These terminals 402d and 402h correspond to a second terminal.

The contact terminals 303b and 303g of the IC card 300 are in contact with the terminals 402b and 402g, respectively. Therefore, even when functions are assigned to the contact terminals 303b and 303g later, it is possible to cope with them. Further, the assignment of the terminals 402 is not limited to the assignment described above, and may be changed according to the contact terminals 303 of the IC card 300.
Each of the terminals 402a to 402h preferably protrudes slightly above the base 404, such as a pin shape or a leaf spring shape.
In addition, an antenna 408 made of a loop coil is built in the base 404 as shown by hidden lines in FIGS. 3 (a) and 3 (b).

Further, on the base 404, a switch 407a biased upward by a biasing means (not shown) is provided between the insertion portions 405a and 405b and the locking portion 406 and close to the locking portion 406. An IC card detection unit 407 is provided.
When the IC card 300 is attached to the reader / writer 400, the back surface of the IC card 300 pushes the switch 407a into the base 404 against the bias. When the switch 407a is pushed, the IC card detection unit 407 detects that the IC card 300 is attached to the reader / writer 400. On the other hand, when the mounted IC card is detached from the reader / writer 400, that is, when the mounting is released, the switch 407a protrudes above the base 404 by the urging means. When the switch 407a protrudes upward, the IC card detection unit 407 detects that the IC card 300 has been detached from the reader / writer 400, that is, has been released.

  Here, when the IC card 300 is attached to the reader / writer 400, as shown in FIG. 4A, the IC card 300 is inserted obliquely so that one corner of the IC card 300 is inserted into the insertion portions 405a and 405b. To do. Thereafter, when the IC card 300 is laid down, the other end of the IC card 300 abuts against the inclined surface 406d of the locking portion 406 and presses the locking portion 406, so that the locking portion 406 is elastically deformed backward. To do. Then, when the IC card 300 is further laid and the other end of the IC card 300 is substantially horizontal with the base 404 beyond the lower end of the inclined surface 406d of the locking portion 406, as shown in FIG. The stop 406 returns to the original state. Finally, as shown in FIG. 4C, the locking surface 406c of the locking portion 406 is locked to the upper surface of the other end of the IC card 300, and the mounting of the IC card 300 is completed.

When the IC card 300 is attached to the reader / writer 400, the switch 407a of the IC card detection unit 407 is pushed against the urging force of the urging means. Therefore, the IC card detection unit 407 detects the mounting of the IC card 300. Further, the contact terminals 303 of the IC card 300 are in contact with the terminals 402 of the reader / writer 400, respectively. Therefore, the reader / writer 400 writes the electronic value to the IC card 300 and is ready to rewrite the display on the electronic paper 301.
Note that the insertion portions 405a and 405b and the locking portion 406 of the reader / writer 400 are disposed at positions that do not cover the screen of the electronic paper 301 when the IC card 300 is attached.

Next, a process of writing data to the non-contact chip 302 of the IC card 300 and a process of rewriting the display of the electronic paper 301 with the IC card 300 mounted on the reader / writer 400 will be described. Note that the processing of the R / W control unit 201 described below is realized by the CPU of the PC 200 executing a program stored in a hard disk or the like.
First, the operator uses an input unit such as a mouse of the PC 200 to instruct to write the electronic value downloaded from the server into the IC card 300. Then, the R / W control unit 201 of the PC 200 confirms whether the IC card detection unit 407 of the reader / writer 400 detects the installation of the IC card 300.

  When the IC card detection unit 407 detects the attachment of the IC card 300, the R / W control unit 201 transmits the downloaded electronic value to the contact communication unit 403 of the reader / writer 400. And the instruction information for rewriting the display of the electronic paper 301 based on the display data. The contact communication unit 403 of the reader / writer 400 transmits the display data and instruction information transmitted to the contact chip 304 of the IC card via the terminal 402 and the contact terminal 303 under the control of the R / W control unit 201. To do.

  At this time, the contact communication unit 403 of the reader / writer 400 transmits display data through the terminal 402f and transmits instruction information through the terminal 402c. Further, the contact communication unit 403 of the reader / writer 400 supplies a voltage for logic power supply for supplying power to the contact chip 304 via the terminal 402a. Further, the contact communication unit 403 of the reader / writer 400 supplies a high display driving voltage for rewriting the display of the electronic paper 301 via the terminals 402d and 402g.

  In the IC card 300, the contact terminals 303a to 303h corresponding to the terminals 402a to 402h of the reader / writer 400 respectively receive transmitted information. The contact chip 304 is driven by the supplied power supply and rewrites the display of the electronic paper 301 based on the received display data and instruction information. Note that when the display of the electronic paper 301 is rewritten by the contact chip 304, the display is rewritten using the supplied high-voltage display driving voltage. At this time, as described above, since the screen of the electronic paper 301 of the IC card 300 is not covered by any member of the reader / writer 400, the operator can rewrite the display while the electronic paper 301 is being rewritten. Can be visually confirmed.

Also, the R / W control unit 201 transmits the actual data of the downloaded electronic value and instruction information for writing the actual data to the non-contact communication unit 401 of the reader / writer 400. The non-contact communication unit 401 of the reader / writer 400 transmits the transmitted actual data and instruction information to the non-contact chip 302 by non-contact communication under the control of the R / W control unit 201.
The non-contact chip 302 of the IC card 300 writes the received actual data of electronic value in the memory.
The R / W control unit 201 writes the actual electronic value data to the IC card 300 in the memory, and confirms that the display on the electronic paper 301 is rewritten. A message stating that it has been written to is displayed.

  When the IC card detection unit 407 does not detect the IC card 300 being attached, the R / W control unit 201 notifies the operator of the IC card 300 to the reader / writer 400 via a display device such as a display of the PC 200. Error processing such as displaying a message indicating that it is not installed.

  Here, FIG. 5 shows an example in which the display of the electronic paper 301 of the IC card 300 is rewritten. FIG. 5A is a display example of a Shinkansen ticket and an express ticket (designated seat). FIG. 5B is a display example of a boarding ticket. FIG. 5C shows a display example of a ticket such as baseball or soccer. Note that FIG. 5 is merely an example, and for example, the display area of the electronic paper 301 may be divided into a plurality of parts so that display corresponding to a plurality of electronic values can be performed. The memory of the non-contact chip 302 stores actual data corresponding to FIGS. 5A, 5B, and 5C.

  Next, a process when the IC card 300 is detached from the reader / writer 400 due to some reason such as a mounting failure of the IC card 300 while the display rewriting process of the electronic paper 301 is being performed will be described. As described above, when both the low voltage device and the high voltage device are mounted on the IC card 300, if the low voltage is interrupted for some reason and only the high voltage is applied, the low voltage device is adversely affected. May cause effects. That is, depending on how the IC card 300 is detached, only the second contact terminals 303d and 303h to which the high display driving voltage of the IC card 300 is supplied contact the terminals 402d and 402h even if instantaneously. There is a risk that In this case, for example, the contact chip 304 driven at a low voltage is adversely affected.

  Therefore, in the present embodiment, the cutoff order control unit 202 of the PC 200 transmits instruction information for the order in which the supply of the voltage supplied to the IC card 300 is shut off to the reader / writer 400. Hereinafter, the processing by the blocking order control unit 202 will be described with reference to the flowchart shown in FIG. Note that the processing of the blocking order control unit 202 described below is realized by the CPU of the PC 200 executing a program stored in a hard disk or the like.

Here, it is assumed that display data and instruction information, a high display drive voltage, and the like are supplied from the contact communication unit 403 of the reader / writer 400 to the IC card 300.
First, in step S <b> 10, the blocking order control unit 202 determines whether or not the IC card detection unit 407 of the reader / writer 400 has detected release of the IC card 300. The determination of this process may be such that the blocking order control unit 202 detects the release of the IC card 300 by constantly monitoring the detection state of the IC card detection unit 407. Alternatively, the blocking order control unit 202 may detect the release of the IC card 300 by receiving information from the IC card detection unit 407 that the IC card 300 has been released.
The blocking order control unit 202 waits until it detects that the IC card 300 is released.

  Here, when the IC card 300 is detached from the reader / writer 400 for some reason and the switch 407a of the IC card detection unit 407 is raised even a little, the shut-off sequence control unit 202 determines that the IC card detection unit 407 uses the IC card 300. Is detected, and the process proceeds to step S11.

  In step S <b> 11, the cutoff order control unit 202 transmits instruction information to the contact communication unit 403 of the reader / writer 400 so as to cut off the supply of the high-voltage display driving voltage. Based on this instruction information, the contact communication unit 403 of the reader / writer 400 cuts off the high display drive voltage supplied from the second terminals 402d and 402h to the second contact terminals 303d and 303h.

  Next, in step S <b> 12, the cutoff order control unit 202 transmits instruction information to the contact communication unit 403 of the reader / writer 400 so as to cut off supply other than the display drive voltage. Specifically, the display information is transmitted, the instruction information is transmitted, and the instruction information for shutting off the supply of the voltage for the logic power supply that supplies power to the contact chip 304 is transmitted. Based on this instruction information, the contact communication unit 403 of the reader / writer 400 blocks the voltage supplied from the first terminals 402a, 402c, and 402f to the first contact terminals 303a, 303c, and 303f.

Next, in step S13, the shut-off sequence control unit 202 notifies the operator that the IC card 300 has been detached from the reader / writer 400 and the electronic value cannot be written via the display device such as the display of the PC 200. Error processing such as displaying.
As described above, the shut-off sequence control unit 202 instructs to shut off the supply of the high-voltage display driving voltage supplied from the reader / writer 400 to the IC card 300 first. It is possible to protect the contact chip 304 and the like from being adversely affected.

In this way, even when the IC card 300 is released while voltage is supplied from both the first terminal and the second terminal, it is possible to avoid applying only a high voltage, Low voltage devices can be protected.
In addition, since the shut-off order control unit 202 of the PC 200 regulates the order of voltage shut-off to the IC card 300, there is no need to mount a protection circuit on the IC card 300, and the IC card 300 becomes complicated, large-sized, or expensive. There is nothing to do.

When the IC card 300 is removed from the reader / writer 400, the release lever 406e is pushed. As a result, the support portion 406a is elastically deformed so as to warp backward, and the other end side of the IC card 300 is pushed up by the biased switch 407a of the IC card detection portion 407. Thereafter, the IC card 300 is removed by pulling out a corner of one end of the IC card 300 from the insertion portions 405a and 405b.
As described above, the reader / writer 400 does not need a movable portion such as a motor that moves the electronic paper of the IC card 300 to the rewriting position or the take-out position when the rewriting is completed. Therefore, the reader / writer 400 can be attached to and detached from the IC card 300 with a simple structure, so that the size and manufacturing cost of the reader / writer 400 can be reduced.

In addition, the reader / writer 400 has a small space for the insertion portions 405a and 405b into which the IC card 300 is inserted, and dust and dust do not accumulate. Further, since most of the base 404 of the reader / writer 400 is exposed to the outside, the reader / writer 400 can be easily cleaned and the maintainability is improved.
In addition, since the insertion portions 405a and 405b and the locking portion 406 of the reader / writer 400 are structured to insert and lock a little at one end and the other end of the IC card 300, the screen size of the electronic paper 301 is reduced. Even when the size of the IC card 300 is increased, the rewritten display can be visually confirmed during the rewriting of the electronic paper 301.

As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
For example, in the above description, the blocking order control unit 202 of the PC 200 controls the reader / writer 400 in order to block the voltage supplied to the IC card 300. However, the present invention is not limited to this case. That is, the reader / writer 400 may have a blocking order control unit that controls the order of blocking the voltage supplied to the IC card 300.

In addition, for example, in the above description, the reader / writer 400 tilts the IC card 300 and inserts one corner of the IC card 300 into the insertion portions 405a and 405b. Although only the structure in which the end is locked to the locking portion 406 has been described, the present invention is not limited to this case.
That is, as shown in FIG. 7, the IC card may be mounted on the reader / writer by sliding the IC card.

  FIG. 7 shows an appearance of the reader / writer 500 with the IC card 600 mounted. The reader / writer 500 is provided with an insertion portion 501 into which one end of the IC card 600 is inserted. On the upper surface of the insertion portion 501, an eject button 501a for taking out the mounted IC card 600 is disposed. Further, as shown in FIGS. 8A and 8B showing a partial cross section of the reader / writer 500, an IC card detection unit 502 for detecting the mounting of the IC card 600 is provided at the innermost side in the insertion unit 501. It is arranged. The IC card detection unit 502 includes a switch 502 a that is biased in the opening direction of the insertion unit 501. A terminal 503 is provided on the inner peripheral upper surface in the insertion portion 501.

  On the other hand, the IC card 600 includes electronic paper 601. The electronic paper 601 is disposed in a portion exposed from the insertion portion 501 when the IC card 600 is inserted into the insertion portion 501 of the reader / writer 500. Further, the IC card 600 is provided with a contact terminal 602 on the same surface as the surface on which the electronic paper 601 is provided.

When the IC card 600 is attached to the reader / writer 500 configured as described above, as shown in FIG. 8A, the IC card 600 is inserted from the opening direction of the insertion portion 501 as shown in FIG. Insert the IC card until one end of the IC card hits the back side of the insertion portion 501.
In the state shown in FIG. 8B, the switch 502a of the IC card detection unit 502 is pushed against the urging force. Therefore, the IC card detection unit 502 detects the mounting of the IC card 600. Further, the contact terminals 602 of the IC card 600 are in contact with the terminals 503 of the reader / writer 500, respectively. Therefore, the reader / writer 500 writes the electronic value to the IC card 600 and is ready to rewrite the display on the electronic paper 601.

  In addition, the process of writing data to the IC card 600 and the process of rewriting the display of the electronic paper 601 are the same as described above, and will be omitted. Further, the processing when the IC card 600 is detached from the reader / writer 500 due to some reason such as a defect in the mounting of the IC card 600 during the display rewriting process of the electronic paper 601 is the same as described above. It is. In other words, the PC block order control unit detects the release of the IC card 600 by the IC card detection unit 502, thereby supplying a high display drive voltage supplied from the reader / writer 500 to the IC card 600. Is controlled to shut off first.

When removing the IC card 600 from the reader / writer 500, the IC card 600 is slid from the insertion portion 501 of the reader / writer 500 to a predetermined position by pressing the eject button 501a of the reader / writer 500, and the IC card 600 is taken out. be able to.
As described above, the reader / writer 500 may have any configuration as long as the reader / writer 500 is configured so as to be able to detect mounting and release of the IC card 600.
In the above description, the case where a contact-type switch, that is, a contact-type sensor is used as the IC card detection unit has been described. For example, a non-contact type sensor such as a photoelectric sensor may be used.

DESCRIPTION OF SYMBOLS 10 Reader / writer system 100 Server 200 Personal computer 201 R / W control part 202 Blocking order control part 300 Non-contact IC card 301 Electronic paper 302 Non-contact chip 303 Contact terminal 303a First contact terminal 303c First contact terminal 303e First Contact terminal 303f first contact terminal 303b second contact terminal 303g second contact terminal 304 contact chip 305 card body 400 reader / writer 401 non-contact communication unit 402 terminal 402a first terminal 402c first terminal 402e first Terminal 402f first terminal 402b second terminal 402g second terminal 403 contact communication unit 404 base 405a insertion unit 405b insertion unit 406 locking unit 407 IC card detection unit 407a switch 408 antenna 500 reader Ita 501 insertion portion 502 IC card detection unit 502a switches 503 terminal 600 IC card 601 electronic paper 602 contact terminals

Claims (6)

A reader / writer that reads and writes data of an IC card equipped with a display device and rewrites the display of the display device,
A first terminal that contacts a first contact terminal of the IC card;
A second terminal that contacts the high voltage contact terminal of the IC card;
An IC card detection unit for detecting the release of the IC card,
In response to the detection result of detecting the IC card mounting release by the IC card detection unit, the voltage is supplied from the second terminal to the first contact terminal of the IC card from the second terminal. A reader / writer characterized in that the voltage supply to the high voltage contact terminal of the IC card is cut off first. It is controlled by an information processing device connected so as to be communicable,
In response to the detection result of detecting the IC card mounting release by the IC card detection unit, based on the voltage cutoff order information instruction transmitted from the information processing apparatus, the IC card first of the IC card 2. The reader / writer according to claim 1, wherein voltage supply from the second terminal to the high voltage contact terminal of the IC card is interrupted before voltage supply to the first contact terminal.   The reader / writer according to claim 1, wherein the second terminal is a contact terminal for supplying a display driving voltage of the display device. A base for mounting the IC card;
An insertion portion provided on the base for inserting one end of the IC card;
A locking portion provided on the base for locking the other end of the IC card;
When mounting the IC card, the IC card is inclined and the one end is inserted into the insertion portion, and then the IC card is leveled and the other end is locked to the locking portion. And
The reader according to any one of claims 1 to 3, wherein the first terminal, the second terminal, and the switch of the IC card detection unit are arranged on the base. lighter. A base for mounting the IC card;
An insertion portion provided on the base for inserting one end of the IC card;
When mounting the IC card, it is configured to insert one end of the IC card horizontally into the insertion portion,
The switch of the said 1st terminal, the said 2nd terminal, and the said IC card detection part is arrange | positioned inside the said insertion part, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. Reader / writer. A reader / writer system in which a reader / writer that rewrites the display of the display device and an information processing apparatus are connected to be communicable with each other while reading / writing data of an IC card including a display device,
The reader / writer is
A first terminal that contacts a first contact terminal of the IC card;
A second terminal that contacts the high voltage contact terminal of the IC card;
An IC card detection unit for detecting the release of the IC card,
In response to the detection result of detecting the IC card mounting release by the IC card detection unit, based on the voltage cutoff order instruction information transmitted from the information processing apparatus, the IC card is connected to the IC card. A reader / writer system, wherein the voltage supply from the second terminal to the high voltage contact terminal of the IC card is cut off before the voltage supply to the first contact terminal.

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