JPH05250529A - IC module - Google Patents

Abstract

(57) [Summary] [Purpose] Information relating to device identification or device certification is not limited in quantity, and it is difficult to change it due to intentional or erroneous operation by a third party, and further downsizing of the device and manufacturing process Contribute to the automation of. [Structure] The IC module 1 is composed of one layer I
The C main unit 2, the reception signal processing unit 4 and the memory 5, and the reception antenna coil 3 configured as another layer. Data is written to the IC module 1 by applying a high frequency current to the antenna 6 of the external data writing device. That is, the reception signal processing unit 4 has a function of obtaining reception data by detection and demodulation related to wireless communication, and this reception data is written in the memory 5 by the reception data processing unit 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing device used in communication devices, financial institutions, medical institutions, etc.
In particular, the present invention relates to an IC module having a wireless communication function which is effective when device identification or device certification is required for security or address allocation for each device.

[0002]

2. Description of the Related Art In an information processing apparatus used in a communication apparatus, a financial institution, a medical institution, etc., it is often necessary to identify or certify the apparatus for ensuring security and allocating an address for each apparatus. At that time, in order to impart identification information or certification information unique to the device, one is to provide a device with an identification switch, another is to use an external communication means consisting of a connector and an interface circuit, and A method has been adopted in which addresses are assigned by a combination of a memory that stores communication data, for example, an electrically erasable PROM.

[0003]

The first conventional method has the drawback that the settable identification information or certification information is quantitatively limited or can be easily changed by a third party. It was Further, in the second conventional method, since it is necessary to provide a connector or the like in the device, miniaturization of the device is hindered, or it is necessary to connect an external connector when setting identification information or certification information. This has a drawback that it makes automation of the manufacturing process difficult.

The problem to be solved by the present invention is to solve the above problems of the prior art, the information relating to device identification or device certification is not limited in quantity, and is caused by a third party's intention or erroneous operation. An object of the present invention is to provide an IC module that is difficult to change and can contribute to downsizing of the device and automation of the manufacturing process.

[0005]

An IC module according to a first aspect comprises an IC main part and a data receiving part for wireless communication. The IC module according to claim 2 is an IC
A main part, a data receiving part relating to wireless communication, a memory part for storing the data received by the data receiving part,
Equipped with.

According to a third aspect of the present invention, there is provided an IC module according to the first or second aspect, in which the data receiving section obtains received data by detecting and demodulating a coil for a receiving antenna and radio communication. And a section. An IC module according to a fourth aspect is the IC module according to the third aspect, wherein the receiving antenna coil is formed as a single layer.

According to a fifth aspect of the present invention, in the IC module according to the third aspect, the receiving antenna coil is formed as a common layer together with other portions.

[0008]

The IC module according to claim 1, 2, 4 or 5 has a wireless communication function. The IC module according to any one of claims 2 to 5 has a wireless communication function and can store received data in a memory.

[0009]

Embodiments of the IC module according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the first embodiment, in which an IC module 1 comprises an IC main unit 2, a reception signal processing unit 4 and a memory 5 which are constructed as one layer
And a receiving antenna coil 3 configured as another layer
Consists of. Shown above the IC module 1 is the antenna 6 of the external data writing device. Data is written to the IC module 1 by applying a high-frequency current to the antenna 6. The received signal processing unit 4 will be described with reference to FIG. 3, which is a block diagram of a data receiving unit common to that of the second embodiment.
The reception signal processing unit 4 has a function of obtaining reception data by detection and demodulation related to wireless communication.

In FIG. 3, a portion surrounded by a broken line rectangular frame is the received signal processing section 4. This reception signal processing unit 4,
The data receiving section in the invention is composed of the receiving antenna coil 3. The reception signal processing unit 4 mainly includes a detection diode 11, a capacitor 12, a comparator 13, a decoder 14 and a reception data processing unit 15. By applying a high frequency current to the antenna 6 of the external data writing device, a voltage of the same frequency is generated in the receiving antenna coil 3 electromagnetically coupled to the antenna. This voltage is detected by envelope detection using the detection diode 11 and the capacitor 12. This detection signal is binarized according to the threshold value Vm by the comparator receiving the application of the voltage Vcc, and then data demodulated via the decoder 14. The demodulated data is written in the memory 5 by the reception data processing unit 15.

FIG. 4 is a signal waveform diagram of the processing process corresponding to the binarized data, (a) is a waveform diagram of the induced voltage in the receiving coil,
(b) is an envelope detection output waveform diagram, and (c) is a comparator output waveform diagram. The external data writing device sends the transmission data to the IC module 1 bit by bit. If this bit data is "0", the high frequency current is not applied to the antenna 6,
If it is "1", a high frequency current is applied to the antenna 6.
The voltage of the same frequency generated in the receiving antenna coil 3 is displayed in the waveform diagram of (a), and the signal detected by the envelope detection is displayed in the waveform diagram of (b).
The 13 outputs are displayed in the waveform diagram of (c).

The second embodiment will be described with reference to the perspective view of FIG. The difference between the second embodiment and the first embodiment is that the IC module is configured as two layers in the first embodiment, whereas the IC module is configured as one layer in the second embodiment. .. That is, in FIG. 2, the IC main unit 2, the reception signal processing unit 4, the memory 5 and the coil 3 are integrated. It should be noted that the data receiving unit or the received signal processing unit and the respective signals corresponding to the binarized data in the processing process in the second embodiment are both the first
The description is omitted because it is the same as in the embodiment.

[0013]

Since the IC module according to the first aspect of the present invention has a wireless communication function, the security of the information processing apparatus used for a communication device, a financial institution, a medical institution, etc., and the address allocation for each device are ensured. Therefore, when device identification or device certification is required, it is particularly effective, and the information relating to device identification or device certification is not quantitatively limited, and it is difficult for a third party to intentionally or erroneously change the information. Therefore, the size of the device can be reduced.

The IC module according to claim 2 has a wireless communication function and can store received data in a memory. Therefore, the security of the IC module in an information processing device used in a communication device, a financial institution, a medical institution, or the like. This is particularly effective when device identification or device certification is required for securing or assigning an address to each device, and means for storing information related to device identification or device certification is provided by the memory for received data. Since it is not necessary to prepare separately, the device can be downsized. In addition, the information relating to the device identification or the device certification is not limited in quantity, and it is difficult to change it due to the intentional or erroneous operation by a third party.

Particularly, in the IC module according to the fourth aspect, since the coil for the receiving antenna is formed as a separate layer separately from the other portions, it is possible to miniaturize it in plan. Particularly, in the IC module according to the fifth aspect, since the coil for the receiving antenna is formed as a common layer together with the other portions, it is slightly enlarged in plan view, but it is technically reasonable and reliability is improved. Can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment according to the present invention.

FIG. 2 is a perspective view of the same second embodiment.

FIG. 3 is a configuration diagram of a common data receiving unit in each of the first and second embodiments.

FIG. 4 is a signal waveform diagram of a processing process corresponding to the binarized data, where (a) is a receiving coil induced voltage waveform diagram, (b) is an envelope detection output waveform diagram, and (c) is a comparator output waveform diagram.

[Explanation of symbols]

 1 IC Module 2 IC Main Part 3 Coil 4 Received Signal Processor 5 Memory 6 Antenna 7 IC Module 13 Comparator 14 Decoder 15 Received Data Processor

Claims (5)

[Claims] 1. An IC module comprising an IC main unit and a data receiving unit relating to wireless communication. 2. An IC module comprising an IC main unit, a data receiving unit relating to wireless communication, and a memory unit for storing data received by the data receiving unit. 3. The IC module according to claim 1, wherein the data receiving unit includes a receiving antenna coil.
And a reception signal processing unit that obtains reception data by detection and demodulation related to wireless communication. 4. The IC module according to claim 3, wherein the receiving antenna coil is formed as a single layer. 5. The IC module according to claim 3, wherein the receiving antenna coil is provided with other portions,
An IC module characterized by being formed as a common layer.