JP4830389B2 - Portable information recording medium, program thereof, communication system - Google Patents

Description

The present invention portable information recording medium comprising a plurality of communication means, portable information recording medium program executed by a CPU of the portable information recording medium, a communication system.

FIG. 4 is a diagram showing a conventional IC card and a reader / writer.
As shown in FIG. 4A, the IC card 10A is a non-contact type IC card. When the card is held over a magnetic field generated from a reader / writer 20a as an external device, an electric current is generated in the antenna in the card. The IC chip operates (for example, Patent Document 1).
Since this IC card 10A does not include a display device, in order for the card holder to understand the information received by the IC card 10A, it is necessary to provide a display device on the information transmission side (reader / writer 20a side). there were.

  Further, as shown in FIG. 4B, when a device 10B that operates equivalent to an IC card (for example, a mobile phone incorporating a small IC card) has a display function, the device 10B After the communication with the reader / writer 20a is completed, the content of the communication is read and displayed.

However, in this case, the information received from the reader / writer 20a that is the information transmission source cannot be displayed unless all the processes are completed. There was a risk that the waiting time would be longer.
JP 2002-133376 A

The subject of this invention is providing the portable information recording medium which can shorten a user's waiting time , its program , and a communication system .

In order to solve the above-mentioned problem, the invention of claim 1 is characterized in that the first communication means for receiving data in a non-contact manner, the second communication means for transmitting data in a contact-type, the first and the first A portable information recording medium comprising a CPU for controlling the second communication means, wherein the CPU is a first communication means for transmitting data without contact with the portable information recording medium. The first communication means switches the communication means from the first communication means to the second communication means while receiving data from the first data processing unit, and the second communication means performs the switching. The portable information recording medium transmits the data received by the first communication means to a second data processing unit that receives data in a contact manner with the portable information recording medium. An information recording medium.
According to a second aspect of the present invention, in the portable information recording medium according to the first aspect, the CPU communicates with the second data processing unit from the second communication unit after the second communication unit has completed communication. The portable information recording medium is characterized in that the communication means is switched to the first communication means, and the first communication means that has switched is responded to the first data processing unit.
According to a third aspect of the present invention, there is provided a first communication means for receiving data in a contactless manner, a second communication means for transmitting data in a contact type, and a CPU for controlling the first and second communication means. The CPU is configured to receive data from a first external device that transmits data in a non-contact manner and performs communication using the first communication means. The communication means is switched from the first communication means to the second communication means, and the second communication means that has switched the second communication apparatus receives the data in a contact type with respect to the second external device. A portable information recording medium, wherein the data received by one communication means is transmitted.
According to a fourth aspect of the present invention, in the portable information recording medium according to any one of the first to third aspects, the first communication means includes a winding coil that performs information communication using a magnetic field. The CPU is a portable information recording medium characterized in that power is supplied by an electromotive force generated when the winding coil detects a magnetic field.
According to a fifth aspect of the present invention, in the portable information recording medium according to any one of the first to fourth aspects, the data communicated by the first and second communication means is image data and / or Alternatively, the portable information recording medium is characterized by being data including moving image data.
According to a sixth aspect of the present invention, there is provided a first communication means for receiving data in a non-contact manner, a second communication means for transmitting data in a contact manner, and a CPU for controlling the first and second communication means. A portable information recording medium program that is executed by a CPU of a portable information recording medium comprising: a first communication means that transmits data in a contactless manner with the portable information recording medium. A first communication procedure for receiving data from the data processing unit and a first communication procedure for switching the communication device from the first communication device to the second communication device during communication in the first communication procedure. A second data processing unit that receives data in contact with the portable information recording medium in the switching procedure of 1 and the second communication means that has switched in the first switching procedure. Te, before received by the first communication means A second communication step of transmitting the data, a portable information recording medium program for execution.
A seventh aspect of the present invention is the portable information recording medium program according to the sixth aspect, wherein the CPU of the portable information recording medium sends the second communication means to the CPU after the communication of the second communication procedure is completed. A second switching procedure for switching the communication means to the first communication means; and a response procedure for responding to the first data processing unit by the first communication means switched by the second switching procedure. It is a portable information recording medium program for execution.
The invention according to claim 8 is a first communication means for receiving data in a contactless manner, a second communication means for transmitting data in a contact type, and a CPU for controlling the first and second communication means. A portable information recording medium program to be executed by a CPU of the portable information recording medium comprising: a first communication device that receives data from a first external device that transmits data in a contactless manner; 1 communication procedure, a first switching procedure for switching communication means from the first communication means to the second communication means during communication in the first communication procedure, and the first switching A second external device that transmits the data received by the first communication means to a second external device that receives data in a contact manner in the second communication means that has been switched in the procedure; A second communication procedure for performing communication, A portable information recording medium program for.
A ninth aspect of the present invention is a communication system comprising the portable information recording medium according to the fourth aspect and the second data processing unit according to the fourth aspect, wherein the first and second communication means. The data communicated in the communication system is data including image data and / or moving image data, and the second data processing unit includes a display device that displays the received data. .

  According to the present invention, since the communication is performed by the second communication unit before the response is returned by the first communication unit, the data can be sequentially transmitted to the second external device immediately after the data is received. Since the external device can start processing without waiting for the communication completion of the first external device, as a result, the waiting time of the user can be shortened.

  Further, by making the second communication means a contact-type communication means, communication is stable, and communication with the second external device can be performed reliably and promptly. During communication with the first communication means Ideal for communication.

  Furthermore, when data including image data and / or moving image data is handled, the amount of data is large and communication is burdened. However, the greater the burden, the more the user's configuration, The waiting time can be greatly reduced.

  An object of the present invention is to provide a portable information recording medium and a program thereof that can reduce the waiting time of a user, before communicating with a reader / writer in a non-contact communication unit and returning a response to the reader / writer. This is realized by communicating with the PDA in the type communication unit.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of a portable information recording medium according to the present invention.
The IC card (portable information recording medium) 10 of this embodiment includes a communication unit 11, a CPU 12, a RAM 13, a ROM 14, an EEPROM 15, and the like.

The communication unit 11 is a part that mediates communication between the CPU 12 and the external devices 20a and 20b, and includes a non-contact communication unit (first communication unit) 11a and a contact communication unit (second communication unit) 11b. The contactless communication unit 11a and the contact communication unit 11b are different communication means.
The non-contact communication unit 11a includes an antenna such as a wound coil, and is a part that communicates with an external device in a non-contact manner, and performs main communication such as commands and data.
The contact communication unit 11b includes a contact terminal that conducts electrical continuity by contact, and is a part that communicates with an external device in a contact manner.
In the present embodiment, the data communicated by the non-contact communication unit 11a and the contact communication unit 11b is data including moving image data.

The CPU 12 is a central processing unit that performs overall control of the IC card 10 and the communication unit 11, and includes an arithmetic unit that performs arithmetic processing such as four arithmetic operations and logical operations, and according to a command received via the communication unit 11. The execution code (program) stored in the ROM 14 and the EEPROM 15 is executed.
The RAM 13 is a volatile memory, and is used as a work area where the CPU 12 performs processing, a transmission / reception buffer for exchanging data with the external devices 20a and 20b, and the like.

The ROM 14 is a nonvolatile read-only memory, and stores an execution code, various parameters, and the like.
The EEPROM 15 is a non-volatile memory that can be rewritten as needed, and stores an execution code, unique information (card unique number, membership number), and the like.

On the other hand, the reader / writer (first external device) 20a is an information transmission device that performs non-contact communication with the IC card 10, and supplies power and clocks to the IC card 10 to transmit commands and data. To do.
A PDA (Personal Digital Assistance) 20b is a contact external device that communicates with the IC card 10 in a contact manner, and receives data from the IC card 10 (details will be described later).

Next, the usage method and operation of the IC card 10 will be described with reference to FIG. 1 and FIG. 2 and FIG.
FIG. 2 is a diagram illustrating a method of using the IC card according to the present embodiment, and FIG. 3 is a flowchart illustrating the operation of the IC card according to the present embodiment.
Here, an example will be described in which encrypted video information is combined with the IC card 10 and reproduced with the PDA 20b.

First, as shown in FIG. 2, an IC card 10, a reader / writer 20a, and a PDA 20b are prepared, and the IC card 10 is inserted into the PDA 20b.
In this state, the IC card 10 is in a state of waiting for activation in step 101 in FIG. 3 (hereinafter, “step” is referred to as “S”).
When the IC card 10 is activated by receiving power from the reader / writer 20a (S102), the CPU 12 determines whether the communication method is a contact type or a non-contact type (S103).
If it is determined that the contact type, the contact type processing is performed (S104). Various processes can be set as the contact-type process at this stage depending on the application, but nothing is particularly done in this embodiment.
If it is determined that it is a non-contact type, a data reception waiting state is entered (S105).

Then, the reader / writer 20a transmits the data obtained by subdividing and encrypting the moving image data to the IC card 10.
The CPU 12 performs main communication with the reader / writer 20a by the non-contact communication unit 11a (first communication procedure), receives the encrypted moving image data, and when the reception of the data is completed (S106), the received data Is started (S107).
Then, the communication means is switched from the non-contact communication unit 11a to the contact communication unit 11b (S108: first switching procedure), the switched contact communication unit 11b communicates with the PDA 20b, and the decoded data is transmitted to the PDA 20b. (S109: Second communication procedure).

The PDA 20b that has received the decoded data while waiting for reception (S201) determines whether or not the reception of the data has been completed (S202).
When the reception of the data is completed, final processing of the received data (deletion of the communication header, etc.) is performed (S203), and the moving image is displayed on the display 21 using the processed moving image data (S204), When the display is completed (S205), the process returns to the reception waiting state (S201).

On the other hand, the CPU 12 of the IC card 10 repeats the processing from S107 to S109 until the processing of the received data is completed (S110).
When the processing is completed and communication with the PDA 20b is completed, the communication means is switched from the contact communication unit 11b to the non-contact communication unit 11a (S111: second switching procedure), and the reader / writer is switched by the non-contact communication unit 11a that has performed the switching. Response data is transmitted to 20a (S112: response procedure), and it is again in a reception waiting state (S105).

  As described above, according to the IC card 10 of this embodiment, before the response is returned to the reader / writer 20a, the contact communication unit 11b communicates with the PDA 20b, so that data can be sequentially transmitted to the PDA 20b immediately after receiving the data. The PDA 20b can start processing and display a moving image without waiting for completion of communication between the IC card 10 and the reader / writer 20a. As a result, the waiting time of the user can be reduced.

  In addition, since communication with the PDA 20b is performed by the contact-type contact communication unit 11b, communication is stable, communication with the PDA 20b can be performed reliably and quickly, and communication is performed during the communication with the non-contact communication unit 11a. Ideal for communication.

  Furthermore, since encrypted video data is handled, the amount of information in the data increases and communication is burdened. However, the greater the burden, the longer the waiting time of the user with the configuration of this embodiment. It can be greatly shortened.

  Furthermore, it is suitable for a dual interface card having two communication means of a contact type and a non-contact type.

(Modification)
The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
(1) In the above-described embodiment, the example has been described in which the reader / writer 20a is communicated in a non-contact manner and the PDA 20b is communicated in a contact manner, but conversely, the reader / writer 20a is communicated in a contact manner. And may communicate with the PDA 20b in a non-contact manner.

(2) Although the first communication unit and the second communication unit have been described as examples of different communication units, the same communication unit or different communication methods may be used for the same communication unit.
In the case of the same communication means, it can be realized by using two contact type communication means (for example, two contact terminals), and in the case of different communication methods with the same communication means, one non-contact type communication This can be realized by using means (for example, one antenna) and performing communication using different protocols.
In the case of the same communication means, instead of determining whether it is a non-contact type or a contact type as in the above-described embodiment, it is determined which communication means (method) is used, Communication with the second external device is performed using a different communication means.

(3) In the above-described embodiment, the example in which the present invention is applied to the IC card has been described. However, the application of the present invention is not limited to the IC card, and can be widely applied to a portable information recording medium incorporating a CPU. In addition, the configuration of the present invention is effective as long as it is a secure medium. For example, in the case of a mobile phone incorporating a small IC card, an IC chip antenna or the like is used as the first communication means, and a contact terminal connected to the mobile phone is used as the second communication means. In this way, a moving image or the like can be displayed on the display of the mobile phone with little waiting time.
(4) The EEPROM 15 may be another nonvolatile memory such as a flash memory or FeRAM (FRAM: a registered trademark of Ramtron International Corporation).

(5) The data communicated by the non-contact communication unit 11a and the contact communication unit 11b has been described as an example of encrypted moving image data, but may be image data having a large amount of information.
(6) As long as the first external device can transmit information, the first external device may be an automatic ticket gate, a vending machine, a telephone pole equipped with an information transmission device, and the second external device is a notebook. It may be a personal computer.

It is a block diagram which shows the Example of the portable information recording medium by this invention. It is a figure which shows the usage method of the IC card by a present Example. It is a flowchart which shows operation | movement of the IC card by a present Example. It is a figure which shows the conventional IC card and a reader / writer.

Explanation of symbols

10 IC card (portable information recording medium)
11 Communication unit 11a Non-contact communication unit (first communication means)
11b Contact communication unit (second communication means)
12 CPU
13 RAM
14 ROM
15 EEPROM
20a Reader / writer (first external device)
20b PDA (second external device)
21 display

Claims (9)

A first communication means for receiving data in a contactless manner;
A second communication means for transmitting data in a contact manner;
A portable information recording medium comprising a CPU for controlling the first and second communication means,
The CPU
The first communication means receives data from a first data processing unit that transmits data without contact with the portable information recording medium,
During the communication, the communication means is switched from the first communication means to the second communication means,
The data received by the first communication means with respect to the second data processing section that receives data in contact with the portable information recording medium by the second communication means that has switched. Sending
A portable information recording medium characterized by the above. The portable information recording medium according to claim 1,
The CPU
The communication means is switched from the second communication means to the first communication means after completion of communication with the second data processing unit by the second communication means,
Responding to the first data processing unit with the first communication means that has switched;
A portable information recording medium characterized by the above. A first communication means for receiving data in a contactless manner;
A second communication means for transmitting data in a contact manner;
A portable information recording medium comprising a CPU for controlling the first and second communication means,
The CPU
The first communication means receives data from a first external device that transmits data without contact;
During the communication, the communication means is switched from the first communication means to the second communication means ,
Transmitting the data received by the first communication means to a second external device that receives data in a contact manner by the second communication means that has switched;
A portable information recording medium characterized by the above. In the portable information recording medium according to any one of claims 1 to 3,
The first communication means includes a winding coil that performs information communication using a magnetic field,
The CPU is supplied with electric power by an electromotive force generated when the winding coil detects a magnetic field;
A portable information recording medium characterized by the above. In the portable information recording medium according to any one of claims 1 to 4,
The data communicated by the first and second communication means is data including image data and / or moving image data;
A portable information recording medium characterized by the above. A first communication means for receiving data in a contactless manner;
A second communication means for transmitting data in a contact manner;
A portable information recording medium program to be executed by a CPU of a portable information recording medium comprising a CPU for controlling the first and second communication means,
A first communication procedure for receiving data from a first data processing unit for transmitting data in a contactless manner with the portable information recording medium by the first communication means;
A first switching procedure for switching the communication means from the first communication means to the second communication means while performing communication in the first communication procedure;
With respect to the second data processing unit that receives data in contact with the portable information recording medium by the second communication means that has switched in the first switching procedure, the first communication unit A second communication procedure for transmitting the data received by the communication means ;
A portable information recording medium program for executing the program. The portable information recording medium program according to claim 6,
In the CPU of the portable information recording medium,
A second switching procedure for switching the communication means from the second communication means to the first communication means after completion of the communication of the second communication procedure;
A response procedure for responding to the first data processing unit by the first communication means that has switched in the second switching procedure;
A portable information recording medium program for executing the program. A first communication means for receiving data in a contactless manner;
A second communication means for transmitting data in a contact manner;
A portable information recording medium program to be executed by a CPU of a portable information recording medium comprising a CPU for controlling the first and second communication means,
A first communication procedure for receiving data from a first external device for transmitting data in a non-contact manner by the first communication means;
A first switching procedure for switching the communication means from the first communication means to the second communication means while performing communication in the first communication procedure;
The second communication unit that has switched in the first switching procedure transmits the data received by the first communication unit to a second external device that receives data in a contact manner. A second communication procedure for communicating with two external devices;
A portable information recording medium program for executing the program. The portable information recording medium according to claim 4,
A communication system comprising the second data processing unit according to claim 4,
The data communicated by the first and second communication means is data including image data and / or moving image data,
The second data processing unit includes a display device for displaying the received data;
A communication system characterized by the above.

Images