JPH04190480A - Noncontact type id card - Google Patents

Abstract

PURPOSE:To confirm whether or not there is access from an interrogator and its contents and to reject answering by equipping the noncontact ID card itself with a display part, a reception rejection switch part, a key input part, a register part, and a CPU part. CONSTITUTION:When the reception rejection switch part 4 is placed in a receivable state, a readout start signal from an antenna 3 is passed through the part 4 to display access from the interrogator on a display part 7. This start signal actuates a signal generation part 11 and data in a storage part 6 are modulated by the part 11 and sent to the interrogator from an antenna 2. The interrogator sends it again as a write signal, which is stored in a register 5 and a storage part 6 and displayed at the display part 7. When the access from the interrogator is undesirable, the switch part 4 can be turned off by key operation on a key input part 8 to disable the reception. Similarly, the display is also stopped.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an ID card itself with a display function and an access denial function, and allows data to be sent to the interrogator without contact via microwaves transmitted from the interrogator. A contactless method for giving and receiving! This concerns the D card.

[Summary of the invention]

The present invention provides the above-mentioned contactless TD card by adding a display function and a function to deny access from an interrogator to the ID card itself. It allows you to check the operating status of the D card and the data stored in the memory element.
Furthermore, it is possible to deny access from the interrogator if the user does not wish to do so.

[Conventional technology]

In recent years, contactless ID cards using microwaves have been widely used in the production automation process field, security field, distribution field, etc. due to their advantages of long communication distance with interrogators and the ability to exchange large amounts of information data in a short time. It is being applied to a wide variety of fields such as transportation, finance, and medical care.

Conventionally, a contactless ID card that uses microwaves receives microwaves sent from an interrogator, modulates them using the ID card's built-in data, and sends the microwaves back to the interrogator. The built-in data of the ID card is read and displayed from the display device connected to the interrogator. Therefore, contactless ID cards do not have a display function.

[Problem to be solved by the invention]

As mentioned above, the interrogator that uses microwaves is installed in a location far from the contactless ID card, and only the interrogator is equipped with a display device, so the ID card side cannot communicate with the interrogator. The ID card is automatically accessed without knowing whether it exists or not, or what kind of question the interrogator is asking even if it is in the middle of communication, and communication with the interrogator continues without confirmation on the ID card side. , in some cases I
When a person or a moving object with a D card approaches the interrogator, the interrogator automatically accesses the interrogator, so there is a problem in that the interrogator automatically accesses the interrogator even when it is not desired.

This is becoming more and more noticeable as the use of contactless ID cards expands not only to the production automation process field and the security field, but also to the financial field, transportation field, distribution field, etc., which involves the exchange of money.

[! II! Means for Solving t] In order to solve the above problems, the present invention adds a display function to the ID card itself to display the presence or absence of access from an interrogator and the access content, and also provides a system for using the ID card. Displays useful data such as card number, name of card owner, time display, memory contents, etc., and also adds a function to the ID card itself that allows you to refuse questions from the interrogator when you do not wish to be asked. This is to obtain a contactless ID card that does not respond to questions from an interrogator.

Effect C] According to the present invention, by looking at the display part of the non-contact ID card, necessary information such as whether there is an access from the interrogator, the access content, the name of the card owner, the card number, etc. can be confirmed, thereby eliminating any inconvenience. If you wish, you can hide the display by entering the code number, and you can also set the card so that it is not accessed from the interrogator if you do not wish to do so. It is possible to prevent unauthorized access from interrogators, and to prevent card loss.

〔Example〕

Hereinafter, the contactless ID card according to the present invention will be explained in detail.

FIG. 1 is a block circuit diagram of a contactless ID card according to the present invention, and FIG. 2 is an external view of the contactless ID card. In Fig. 1, 1 is a contactless ID card, 2 is an antenna section for reading, 3 is an antenna section for writing and control signals, 4 is a reception rejection switch section, and 5 is a temporary storage of written data from an interrogator. register, 6 is storage section, 7
1 is a display section, 8 is a key power section, 9 is a CPU section, 10 is a modulation section, 11 is a modulation signal generation section, 12 is a power supply section, 13 is a battery, and 14 is a reception section for signals that control write signals and reading. be. The external appearance of a non-contact ID card having such functions is miniaturized into a card shape as shown in FIG.

In FIG. 2, reference numeral 1 indicates a non-contact ID card, and reference numeral 7 indicates a flat display having one or more digits, such as a liquid crystal display. Reference numeral 8 indicates one or more thin keys, which are input keys for displaying information such as whether there is access from the interrogator, access contents, memory contents, and data useful for using the card. You can also enter the password manually to set whether or not to use the password.

Next, the operation of the contactless ID card configured as described above will be explained. The control signal antenna section 3 receives a read start signal from the interrogator and sends the signal to the reception rejection switch section 4. The signal is sent to the display section 7 via the CPU section 9 whose switch is set in the reception rejection switch section 4 to a receivable state. The display unit 7 receives this signal and displays with symbols or characters that access from the interrogator is being made. On the other hand, the read start signal is passed through the CPU section 9 to the storage section 6 and the modulation signal generation section 1.
1 is activated, the data in the storage section 6 is sent to the modulation section 10 via the modulation signal generation section 11, and the radio wave received by the readout antenna section 2 is FM modulated or PM modulated by the modulation section 10, and the data from the antenna section 2 is sent to the interrogator. fire to. The interrogator receives the radio waves emitted from the antenna section 2, processes the data, and then sends out the radio waves again as a writing signal. This radio wave is received by the writing antenna section 3, and a write signal is sent to the register 5 and the storage section 6, and the write data is stored. The data accumulated in the register 5 is sent to the display section 7 via the 020 section 9.
sent to. The display section 7 receives the signal from the 020 section 9 and displays the content accessed from the interrogator in memory or in text. In the non-contact type ID card 1, if access from the interrogator is not desired by key operation in the key manual section 8, the reception refusal switch section 3 can be activated via the 020 section 9 to make the card unreceivable. . In addition, by key operation in the key manual section 8, the CPU section 9
Built-in data accumulated in the storage unit 6, for example,
Convenient data for using the card, such as card ownership name, card number, and data content rewritten by access from the interrogator, is read from the storage section 6 and sent to the display section 7.

The display section 7 receives this signal and displays it using symbols or characters. Further, if the display is not desired or it is inconvenient to display the display, the switch of the 020 section 9 is operated by key operation of the key manual section 8 to stop the signal sent to the display section 7.

Note that the present invention is not limited to the above embodiments,
Various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

〔Effect of the invention〕

As explained above in detail, according to the present invention, the contactless ID card itself is equipped with a display section, a reception rejection switch section, a key input section, a register section, and a CPU section. You can check whether or not there is access.

■You can check the access content from the interrogator, and there are no mistakes in access.

■You can display useful data when using the card, such as memory contents, card name, card number, etc.

■If you do not wish to communicate with the interrogator, you can refuse the response on the card side.

■Data that is inconvenient to display on the display can be prevented from being displayed by setting a password.

■Contactless ID cards in the form of light, thin, and short cards are easy for users to carry and can be conveniently attached to objects.

Therefore, the contactless ID card according to the present invention is not an interrogator-dependent card that is found in conventional contactless ID cards (it is not an interrogator-dependent card that can actively respond and display information to access from an interrogator). can.

Thus, the present invention has various advantages, and the effects brought about by it are significant.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram of a contactless ID card according to the present invention, and FIG. 2 is an external view of the contactless ID card. 1... Non-contact ID card 2... Antenna section for reading 3... Antenna section for writing and control signals 4... Reception rejection switch section 5... Register 6... -Storage section 7...Display section 8...Key power section 9...CPU section 10...Modulation section 11...Modulation signal generation section 12...Power supply section 13...Battery 14...Writing/control signal receiving section Applicant: Seiko Electronic Industries Co., Ltd. Patent attorney: Keinosuke Hayashi

Claims (1)

[Claims] A contactless ID card that is equipped with a memory element and that transmits and receives data to and from the interrogator in a contactless manner via microwaves transmitted from the interrogator; a function for displaying access contents, a function for displaying data contents stored in the storage element, a setting function for refusing access from the interrogator, and a function for allowing the card to refuse access from the interrogator. A function to display that it is in a state where it can be refused,
A contactless ID card characterized by being equipped with a setting function that prevents display when a PIN number is input.