JPH10111916A - Noncontact processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a remote type and a nearby type in common by providing different kinds of transmitting means and performing transmitting operation corresponding to the kind of transmission on detecting a transmitting means of another device. SOLUTION: A noncontact card A is able to have a bidirectional communication with both a remote type reader writer and a nearby type reader writer. A CPU 16 drives and controls a power reception part 18, a data reception part 19, a data transmission part 20, and an antenna coil 21 according to a program stored in a ROM 17 and also stores necessary data in a RAM 22. For the purpose, the ROM 17 is stored with two kinds of protocol. Further, a power transmission frequency, a modulating and demodulating method for a transmit and a receive wave, and the communication protocol are switched by a control communication from the CPU 16 to correspond with both the remote type and nearby type. The remote type protocol and the nearby type protocol are incorporated in the program in the ROM 17 and executed by the CPU 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact medium (card) for executing communication with another device in a non-contact manner and a non-contact processing device such as a card processing device.

[0002]

2. Description of the Related Art In general, there are two types of non-contact media, a remote type used in a non-contact automatic ticket gate and the like and a proximity type used as a replacement for a magnetic card or an IC card. At present, standardization is being advanced separately for each application (application means).
In particular, the remote type is required to expand the application, and it is assumed that a function such as a credit card will be provided in the future, so that two types of media exist for one type of application. However, the remote type and the proximity type are standardized separately, and there is a problem that one system cannot use both the remote type and the proximity type because of incompatibility.

[0003]

The invention according to claim 1 of the present invention comprises different types of transmission means, detects the type of transmission means of another device, and switches to the transmission means corresponding to the transmission type. Accordingly, an object of the present invention is to provide a non-contact processing device (including both a non-contact medium and a device for processing a non-contact card) capable of sharing a remote type and a proximity type.

[0004] The invention according to claim 2 of the present invention, in addition to the object of the invention described in claim 1, uses a non-contact medium such as a card as the non-contact processing device, so that it can be a single medium. It can be used for remote applications such as contactless automatic ticket gates and for proximity applications such as credit cards and cash cards, which can increase the versatility of the medium and without dispersing the information in the medium. An object is to provide a non-contact processing device that can be shared.

According to a third aspect of the present invention, in addition to the object of the first aspect, the above-mentioned processing device is set in a device such as a reader / writer for processing a non-contact card. Therefore, it is an object of the present invention to provide a non-contact processing in which a single apparatus can use both a remote medium and a proximity medium, there is no increase in the cost of the medium, and the medium in circulation can be used as it is.

[0006] In addition to the object of the third aspect of the present invention, the invention according to the fourth aspect of the present invention provides another method when communication with a medium inserted into an insertion slot cannot be performed within a predetermined time. It is an object of the present invention to provide a non-contact processing device capable of switching to a transmission unit without any time loss in processing, reducing processing time, and ensuring improved responsiveness.

[0007]

According to the first aspect of the present invention, there is provided a non-contact processing device for performing non-contact communication with another device, comprising a different type of transmission means.
It is a non-contact processing device comprising: a detection unit that detects a type of transmission unit included in another device; and a switching unit that switches to a transmission unit corresponding to the transmission type detected by the detection unit.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the present invention is a non-contact processing apparatus in which the processing apparatus is set as a non-contact medium.

According to a third aspect of the present invention, in addition to the configuration of the first aspect of the present invention, it is preferable that the processing device is a non-contact processing device set in a device for processing a non-contact card. Features.

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect of the present invention, a transmission port for receiving the non-contact card and a non-contact card inserted in the insertion port are transmitted. And a second transmission means for transmitting a non-contact card that is not inserted into the insertion slot, and performing communication within a predetermined time with respect to the medium sent to the insertion slot. A non-contact processing device provided with a switching means for switching to the second transmission means when there is no transmission.

[0011]

According to the first aspect of the present invention, the detecting means detects the type of the transmitting means included in the other device, and the switching means detects the transmission type detected by the detecting means. To the transmission means corresponding to the detected transmission type among the different types of transmission. Therefore, there is an effect that the remote type and the proximity type can be shared.

According to the second aspect of the present invention,
In addition to the effect of the first aspect, the non-contact processing device is set to a non-contact medium (non-contact card).
Although it is a single medium, it can be used for remote applications such as contactless automatic ticket gates and for proximity applications such as credit cards and cash cards. Information can be shared without dispersing.

According to the third aspect of the present invention,
In addition to the effect of the first aspect of the present invention, the non-contact device is set as a device such as a reader / writer that processes a non-contact card.
Both proximity media can be used, and there is an effect that the cost of the media does not increase and the media in circulation can be used as it is.

According to the invention described in claim 4 of the present invention,
In addition to the effect of the third aspect of the present invention, the first transmission means performs transmission with the non-contact card inserted into the insertion slot, and the second transmission means performs non-contact with the non-contact card inserted into the insertion slot. When the communication is performed within a predetermined time with respect to the medium inserted into the insertion slot that allows the non-contact card to be accepted, the above-mentioned switching means switches the first transmission means to the second transmission means. Switch to the transmission means and set to enable communication. As a result, there is an effect that there is no time loss in the processing, the processing time can be reduced, and the improvement in the responsiveness to the remote application and the proximity application can be ensured.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a remote-type medium system, in which a remote-type medium reader / writer 12 capable of communicating with a higher-level system (higher-level device) 11 is provided. FIG. 2 shows a proximity-type medium system, in which a proximity-type medium reader / writer 14 capable of communicating with a higher-level system (upper-level device) 13 is provided.
The writer 14 is formed with an insertion port 15 for accepting a non-contact card A as a non-contact medium. In addition, the above-mentioned non-contact card A is configured to support both reader / writers 12, 14.

That is, the above-mentioned non-contact card A is configured as shown in the control circuit block diagram of FIG. 3, and can communicate with both the proximity reader / writer 14 of the remote reader / writer 12. In this embodiment, means for communicating with the proximity reader / writer 14 is provided for the remote contactless card A.

As shown in FIG.
The power receiving unit 18, the data receiving unit 19, the data transmitting unit 20, the antenna coil 2
1 and the RAM 22 stores necessary data. Here, the above-described ROM 17 stores two types of protocols (protocol, communication protocol). CPU1
By switching the power transmission frequency, the method of demodulating the transmitted and received waves, and the communication protocol in accordance with the control signal from the control unit 6, the system can be adapted to both the remote type and the proximity type.

FIG. 4 shows a specific configuration of the circuit device shown in FIG.
A description will be given based on FIGS. FIG. 4 shows the power receiving unit 18.
The power receiving unit 18 includes the antenna coil 2
Resonant capacitors 23, 2 connected in parallel with LC
4, a power supply circuit 25, and an analog switch 26 connected in series to one of the resonance capacitors 24.
The analog switch 26 is switched by a control signal from the PU 16 to switch the resonance frequency of power reception between the remote type and the proximity type.

FIG. 5 shows the configuration of the data receiving section 19, wherein a remote type demodulating section 29 and a proximity type demodulating section are required between the antenna coil 21 and the reception data output side via an analog switch 27 and a data selector 28. 30 in parallel,
Analog switch 27 according to a control signal from CPU 16
And the data selector 28 is switched synchronously to switch between the two demodulators 29 and 30.

FIG. 6 shows the configuration of the data transmission unit 20. The data transmission unit 20 has a modulator 31 connected to the antenna coil 21 and a common terminal 32c connected to the modulator 31.
, A remote-type modulation unit 33 connected to one switching terminal 32a of the analog switch 32, and a proximity-type modulation unit 34 connected to the other switching terminal 32b of the analog switch 32. With C
The configuration is such that the analog switch 32 is switched by the control signal from the PU 16 to switch between the two modulation units 33 and 34.

The remote communication protocol (see FIG. 7) and the proximity communication protocol (see FIG. 8) are ROM
17 and is executed by the CPU 16. The switching control corresponding to the transmission type of the contactless processing device (contactless card A) thus configured will be described in detail below with reference to the flowchart shown in FIG.

In a first step S1, the CPU 16 sets the contactless card A as a remote medium. That is, the control signal from the CPU 16 sets the resonance frequency of power reception, the method of demodulating transmitted and received waves, and the communication protocol for the remote type.
Next, in a second step S2, the CPU 16 executes time initialization (t = 0). Note that a timer with a built-in CPU can be used as the timer for measuring time.

Next, in a third step S3, the CPU 16 determines whether or not the polling transmitted by the reader / writer 12 has been received. When the determination is NO, the CPU 16 proceeds to the next fourth step S4. The process moves to the eighth step S8. In the above-described eighth step S8 corresponding to the polling reception, the CPU 16 sets the response (respons
e) to the sender of the command, control information for notifying the operation performed by the receiver of the command),
In the next ninth step S9, the CPU 16 executes communication as a remote medium (card).

On the other hand, in the above-described fourth step S4 corresponding to the fact that polling has not been received, the CPU 16 compares the predetermined time t with the polling interval Tp, and when t <Tp, returns to the third step S3. If no polling has been received within the predetermined time t (t> Tp), the process shifts to the next fifth step S5 with a YES determination.

In the fifth step S5, the CPU 16 sets the non-contact card A as a proximity medium. That is, CPU1
The control signal from 6 sets the resonance frequency of power reception, the method of demodulating transmitted and received waves, and the protocol of communication for the proximity type. Next, in a sixth step S6, the CPU 16 sets the ATR (An
swer To Reset), and in the next seventh step S7,
The CPU 16 executes communication as a proximity medium (card).

As described above, according to the embodiment shown in FIGS. 1 to 9, the above-mentioned detecting means (see steps S3 and S4) is the type of transmitting means of another device (see reader / writers 12 and 14). (The type of the remote type or the proximity type) is detected, and the switching means (see steps S7 and S9) is used as the transmission means corresponding to the transmission type detected by the above-mentioned detection means (see steps S3 and S4). Switching to a transmission means corresponding to the detected transmission type from among different types of transmission. Therefore, there is an effect that the remote type and the proximity type can be shared.

Further, since the non-contact processing device is set to the non-contact card A, it can be used for a remote application such as a non-contact automatic ticket gate and a proximity application such as a credit card and a cash card even though it is a single medium. This makes it possible to increase the versatility of the medium and to share the information in the medium without dispersing.

In the above embodiment, the case where the present invention is applied to the contactless card A has been described. Next, referring to FIGS. 10 to 14, an embodiment in which the present invention is applied to a processing device (reader / writer). An example will be described in detail. FIG. 10 shows a control circuit block diagram of a reader / writer 35 as an example of a non-contact processing device, which can communicate with both a remote medium (card) and a proximity medium (card).
In this embodiment, a means for communicating with a remote medium is provided for a proximity type reader / writer (that is, a reader / writer having an external shape shown in FIG. 2).

That is, as shown in FIG. 3, the CPU 36 controls the driving of the power transmitting unit 38, the data receiving unit 39, the data transmitting unit 40, and the antenna coil 41 in accordance with the program stored in the ROM 37, and the RAM 42 stores necessary data. Is stored. Here, two types of protocols (protocols and communication protocols) are stored in the ROM 37 (see FIGS. 7 and 8).
Is stored. Further, by switching a power transmission frequency, a transmission / reception wave demodulation method, and a communication protocol in accordance with a control signal from the CPU 36, both remote type and proximity type are configured.

FIG. 1 shows a specific configuration of the circuit device shown in FIG.
1 and FIG. 12 and FIG. FIG. 11 shows a configuration of a power transmission unit 38. The power transmission unit 38 connects an amplifier 46 to AC power supplies 43 and 44 having different frequencies f1 and f2 via an analog switch 45.
The parallel circuit 49 of the two capacitors 47 and 48 is connected to the output stage of, and the analog switch 50 is connected in series to one of the capacitors 48, and the analog switches 45 and 50 are synchronously controlled by a control signal from the CPU 36. Switch
The oscillation frequency is switched between the remote type and the proximity type.

FIG. 12 shows the structure of the data receiving section 39.
A remote type demodulation unit 53 and a proximity type demodulation unit 54 are connected in parallel between the antenna coil 41 and the reception data output side via an analog switch 51 and a data selector 52, and the analog switch is controlled by a control signal from the CPU 36. 51 and the data selector 52 are switched synchronously to
The two demodulation units 53 and 54 are configured to be switched.

FIG. 13 shows the structure of the data transmission unit 40.
The data transmitting unit 40 includes a modulator 55 connected to the antenna coil 41 and a common terminal 56 connected to the modulator 55.
c, an analog switch 56 connected thereto, a remote-type modulator 57 connected to one switching terminal 56a of the analog switch 56, and a proximity modulator 58 connected to the other switching terminal 56b of the analog switch 56. With
The analog switch 56 is controlled by a control signal from the CPU 36.
And the two modulation units 57 and 58 are switched.

The remote communication protocol (see FIG. 7) and the proximity communication protocol (see FIG. 8) are ROM
The program is stored in a program 37 and executed by the CPU 36. The non-contact processing device (leader /
The switching control corresponding to the transmission type of the writer 35) will be described in detail below with reference to the flowchart shown in FIG.

In the first step S11, the CPU 36 sets the reader / writer 35 to the proximity R / W. That is, CP
The control signal from U36 sets the oscillation frequency of the power transmitting unit 38, the method of demodulating the transmitted and received waves, and the communication protocol for the proximity type. Next, in a second step S12, the CPU 36
Determines whether a non-contact card (see FIGS. 1 and 2) as a non-contact medium is inserted (inserted) into the insertion slot 15,
The process shifts to the next third step S13 only when YES is determined.

Next, in a third step S13, the CPU 36 executes time initialization (t = 0). Note that a timer with a built-in CPU can be used as the timer for measuring time.
Next, in a fourth step S14, the CPU 36 determines whether or not an ATR (Answer To Reset) to be transmitted by the contactless card has been received. N equivalent to reception
When the determination is O, the process proceeds to the sixth step S16.

In the fifteenth step S15, the CPU 3
Numeral 6 executes communication with the reader / writer 35 as a proximity R / W in response to ATR reception. On the other hand, in the above-described sixth step S16, the CPU 36 compares the time t with a predetermined time Ta set in advance to determine whether or not t> Ta.
That is, it is determined whether the ATR has not been received within the predetermined time Ta (whether the ATR has not been received after the power-on time of the medium). When t <Ta (when NO is determined), the process returns to the fourth step S14, while t>
At the time of Ta (when YES is determined), the next seventh step S17
Move to

In the above-described seventh step S17, the CPU 36
Sets the reader / writer 35 to the remote type R / W. In other words, the control signal from the CPU 36 sets the oscillation frequency of the power transmission unit 38, the method of demodulating the transmitted and received waves, and the communication protocol for the remote type. Next, in an eighth step S18, the CP
The U36 sends out polling, and in the next ninth step S19, the CPU 36 executes communication with the reader / writer 35 as a remote R / W.

As described above, according to the embodiment shown in FIGS. 10 to 14, the above-mentioned detecting means (see steps S14 and S16) is the type of remote means (see non-contact card) of another device (see non-contact card). Or proximity type), and the switching means (see steps S15 and S19) is used as a transmission means corresponding to the transmission type detected by the above-described detection means (see steps S14 and S16), that is, a different type Switching to the transmission means corresponding to the transmission type detected from the transmissions. Therefore, there is an effect that the remote type and the proximity type can be shared.

Further, since the above-mentioned non-contact device is set as the reader / writer 35 for processing the non-contact card, it is possible to use both the remote type medium and the proximity type medium in a single device 35, and to reduce the cost of the medium. There is no effect, and there is an effect that a distributed medium can be used as it is.

Further, the above-mentioned first transmission means (proximity transmission means) performs transmission with the non-contact card A inserted in the insertion slot 15, and the above-mentioned second transmission means (remote transmission means).
Performs transmission with the non-contact card A which is not inserted into the insertion slot 15, but allows the insertion of the non-contact card A
If the communication with the medium inserted in No. 5 cannot be performed within the predetermined time Ta (see YES determination in step S16), the above-described switching means (see steps S15 and S19) is switched to the first transmission means (see steps S15 and S19). Switching from the proximity transmission means) to the second transmission means (remote transmission means) is performed so that communication is possible. As a result, there is an effect that there is no time loss in the processing, the processing time can be reduced, and the improvement in the responsiveness to the remote application and the proximity application can be ensured.

In correspondence between the configuration of the present invention and the above-described embodiment, the non-contact processing device of the present invention corresponds to both the non-contact card A and the reader / writer 35 of the embodiment. Corresponds to the reader / writers 12, 14 or the contactless card, and the different types of transmission means can be switched and set to the remote type and the proximity type for the power reception resonance frequency, the transmission / reception wave demodulation method, and the communication. It corresponds to the protocol (see FIG. 7 and FIG. 8), the oscillating frequency of transmission transmission that can be switched and set for the remote type and the proximity type, and the protocol of the demodulation method of the transmitted and received wave (see FIG. 7 and FIG. 8). The detecting means performs steps S3, S3 in the flowchart shown in FIG.
4 and each step S1 of the flowchart shown in FIG.
4 and S16, the switching means is implemented by software in steps S7 and S9 of the flowchart shown in FIG.
4 corresponds to steps S15 and S19 of the flowchart shown in FIG.
2, 45, 50, 51, 52, 56; the non-contact medium corresponds to the non-contact card A; the device for processing the non-contact card corresponds to the reader / writer 35; Corresponds to the proximity transmission means (proximity type demodulation unit 54, proximity type modulation unit 58, refer to the protocol of FIG. 8),
The transmission means corresponds to the remote transmission means (remote demodulation section 53, remote modulation section 57, see protocol in FIG. 7), but the present invention is limited to only the configuration of the above embodiment. is not.

For example, each of the contact type switches 26, 27, 28.32.
Instead of 45, 50, 51, 52, and 56, the switching means may be configured by a non-contact semiconductor switching element.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a remote type medium system.

FIG. 2 is an explanatory diagram showing a proximity medium system.

FIG. 3 is a block diagram of a non-contact card as an example of the non-contact processing device of the present invention.

FIG. 4 is a circuit diagram of a power receiving unit.

FIG. 5 is a circuit diagram of a data receiving unit.

FIG. 6 is a circuit diagram of a data transmission unit.

FIG. 7 is an explanatory diagram of a remote protocol.

FIG. 8 is an explanatory diagram of a proximity protocol.

FIG. 9 is a flowchart illustrating switching control.

FIG. 10 is a block diagram of a reader / writer as an example of the non-contact processing device of the present invention.

FIG. 11 is a circuit diagram of a power transmission unit.

FIG. 12 is a circuit diagram of a data receiving unit.

FIG. 13 is a circuit diagram of a data transmission unit.

FIG. 14 is a flowchart showing switching control.

[Explanation of symbols]

 12, 14, 35 ... reader / writer A ... non-contact card S3, S4, S14, S16 ... detecting means S7, S9, S15, S19 ... switching means

Claims (4)

[Claims] A non-contact processing device for communicating with another device in a non-contact manner, comprising a different type of transmission means, and detecting means for detecting the type of transmission means of the other device; A switching means for switching to a transmission means corresponding to the transmission type detected by the means. 2. The non-contact processing device according to claim 1, wherein said processing device is set as a non-contact medium. 3. The non-contact processing device according to claim 1, wherein the processing device is set as a device for processing a non-contact card. 4. An insertion slot for accepting the non-contact card, first transmission means for transmitting the non-contact card inserted in the insertion slot, and a first transmission means for transmitting the non-contact card not inserted in the insertion slot. 4. The non-transmission device according to claim 3, further comprising: a transmission unit configured to switch to the second transmission unit when communication with the medium sent to the insertion slot cannot be performed within a predetermined time. Contact treatment equipment.