JPH0528673U - IC card - Google Patents

Abstract

(57) [Abstract] [Purpose] To detect the mounting position of the IC card. [Structure] Position detection terminals (10), (11), and (1) are provided at four parts that are point-symmetric with respect to the center of the IC card (1).
2) and (13), the position detecting terminal 1 (10) and the position detecting terminal 2 (11) are in opposite directions, and the position detecting terminal 3 is provided.
The diode (12) and the position detection terminal 4 (13) are connected in the forward direction, and the position detection terminal 2 and the position detection terminal 4 are connected in the reverse direction by diodes.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an IC card and a read / write device, and relates to a device for automatically determining how the IC card is attached to the read / write device, such as face-up or face-down, and the positional relationship.

[0002]

[Prior Art]

 Conventionally, IC memory cards used in personal computers, word processors, etc. have been manufactured by JEIDA Ver. There are products that comply with the four specifications. In this product, 68 female terminals are arranged in two rows of 34 on each side of the case, and the signals to be handled are determined for each terminal. Therefore, when using this IC card, the user must insert the IC card into the main device in a certain direction, for example, with a predetermined surface facing upward. It cannot be inserted into the main unit in any other position. In addition, standardization has been done for ISO (International Standards Organization) in IC cards with built-in CPU (Central Processing Unit), and some products have external terminals that have been agreed by ISO. In this case, two rows of patterned terminals are provided, four on each side of the case. The signals to be handled at each terminal are predetermined, and the reader / writer of various terminal devices must be equipped with an IC card in one predetermined position state with caution of the user.

[0003]

[Problems to be solved by the device]

 The IC card is characterized by more than 100 times more storage capacity than a magnetic card. In particular, a CPU (Central Processing Unit) built-in IC card has its own calculation function, security function, etc. Is expected to spread. However, the current system consisting of the IC card and the terminal device is inconvenient to use because the IC card must be mounted on the terminal device in a fixed position. If the system of the IC card and the terminal device is equipped with a function that allows the IC card to be installed in a free position, it becomes a convenient system that is easy for users to use and can shorten the operation time. The application fields of IC cards can be expanded. The present invention, for example, when an user normally uses an IC card, such as an ID (identification) card, and inserts the IC card into the terminal device as needed, simply uses the IC card as the terminal device. The purpose is to provide an IC card that can be easily and quickly handled by anyone without causing the problem of incorrect insertion by simply inserting it.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, for example, contact terminals are provided at four points, which are point-symmetrical with respect to the center of a rectangular IC card, and the terminals are connected by diodes. The external shape of the IC card is not limited to a rectangle, but may be a shape with all the corners of the rectangle being rounded, an ellipse, or the like. A configuration may be used in which terminals are provided and each terminal is connected by a diode.

[0005]

[Action]

 Since the present invention is configured as described above, for example, after inserting the IC card into the terminal device, the contact pins of the terminal device come into contact with the four contact terminals that are point-symmetrical with respect to the center of the IC card. In this order, by applying a potential to each terminal and identifying the combination of terminals that are in the conducting state or non-conducting state of the current by the action of the diode circuit connected to the terminal, the IC card terminal device The position and state of mounting can be determined. It should be noted that if the position condition of the insertion can be determined, the position condition of the contact terminal of the IC card can be known, and hence the IC card can be read and written.

[0006]

【Example】

 Hereinafter, the IC card of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of an IC card according to the present invention. In the figure, reference numeral 1 denotes an IC card according to the present invention, which is provided with position detecting terminals which are point-symmetrical with respect to the center of the IC card, for example, four positions on side surfaces 4 and 5 of the IC card. 2 is the upper surface of the IC card. Reference numeral 3 is the lower surface of the IC card. Reference numeral 4 denotes a side surface 1 of the IC card, which is provided with position detecting terminals 10 and 11. Reference numeral 5 denotes a side surface 2 of the IC card, which is provided with position detection terminals 12 and 13. Reference numeral 10 is a position detection terminal 1 to which a position detection diode 20 is connected inside the IC card. Reference numerals 11, 12, and 13 are position detection terminals 2, 3, and 4, and the position detection diode 20 is connected inside the IC card. The position detecting terminals 10, 11, 12 and 13 do not necessarily have to be on the side surfaces as in the above-mentioned example, and if the terminals are symmetrical with respect to the center point of the IC card, the upper surface 2 of the IC card and You may provide in the lower surface 3 of an IC card in the shape which penetrates these two surfaces.

FIG. 2 is a view showing four kinds of position states of the IC card according to the present invention. FIG. 3A is a view of the side surface 1 of the IC card as viewed from the top surface 2 of the IC card. (B) is a view of the state of (a) rotated by 180 degrees on the paper surface. (C) is a view of the IC card as seen from the bottom surface 3 of the IC card with the side surface 1 facing forward in the state of (A). (D) is a diagram of the state of (C) rotated 180 degrees on the paper surface. In FIGS. 2A to 2D, reference numeral 20 denotes a position detection diode, which is a position detection terminal 1 (10), a position detection terminal 2 (11), a position detection terminal 3 (12), and a position. It is connected to the detection terminal 4 (13). The position detecting diode 20 has a cathode connected to the position detecting terminal 1 and an anode connected to the position detecting terminal 2, and the position detecting terminal 2 has a cathode connected to the position detecting terminal 4 and an anode connected to the position detecting terminal 4. The position detection circuit is composed of a total of three terminals, each of which has an anode connected to the position detection terminal 3 and a cathode connected to the position detection terminal 4.

FIG. 3 is a diagram showing an IC card according to the present invention mounted on a terminal device. Reference numeral 30 denotes a terminal device, which detects four kinds of position states of the IC card after the IC card of the present invention is mounted and reads / writes according to each position state. Reference numerals 31, 32, 33, and 34 are contact pins 1, 2, 3, and 4 of the terminal device, respectively. In the case of the position state of FIG. 3, the contact pin 1 is connected to the position detecting terminal 3 of the IC card of the present invention. The contact pin 2 is connected to the position detecting terminal 4, the contact pin 3 is connected to the position detecting terminal 1, and the contact pin 4 is connected to the position detecting terminal 2 to exchange signals.

Next, the operation of the IC card of the present invention will be described. In FIG. 3, the contact pin 1 of the terminal device is the position detection terminal 3 of the IC card, the contact pin 2 of the terminal device is the position detection terminal 4 of the IC card, and the contact pin 3 of the terminal device is In the state where the contact pin 4 of the terminal device is connected to the position detection terminal 1 of the IC card and the position detection terminal 2 of the IC card respectively, (a) + potential is supplied to the contact pin 1 of the terminal device. Then, the contact pin 2 detects the potential. (B) + potential is supplied to the contact pin 3 of the terminal device, and the potential is detected by the contact pin 4. (C) A + potential is supplied to the contact pin 2 of the terminal device, and the potential is detected by the contact pin 4. When the discriminant inspection is carried out, the result of conduction in (a), non-conduction in (b) and conduction in (c) are obtained. Generally, as shown in FIG. 2, the terminal device can be mounted in four kinds of position states of (a), (b), (c), and (d). FIG. 3 shows the case of mounting in the position state of (a), and similarly, in the position states of (b), (c), and (d), the discrimination tests (a), (b), ( The result of performing c) is shown in the truth table showing the state of the position attached to the terminal device in FIG. Therefore, the position state of the IC card can be determined from the result of the discrimination test. The terminal device is provided with contact pins at four positions corresponding to the above-mentioned four types of position states, corresponding to the power source of the IC card and the signal contact terminal. The IC card is electrically connected by a method of selecting one of the four locations depending on the position of the IC card.

[0010]

[Effect of the device]

 As explained above, according to the IC card of the present invention, it is possible to provide an IC card system that can be inserted into a terminal device in any of front / back / front / rear orientation, is easy to handle, and is easy to handle. is there. Therefore, the IC card of the present invention can be easily operated by an elderly person or a visually handicapped person, and can be applied to a personal card for medical treatment, for example, and the field of use of the IC card can be expanded.

[Brief description of drawings]

FIG. 1 is an external perspective view of an IC card according to the present invention.

FIG. 2 is a positional state diagram of four types of IC cards according to the present invention.

FIG. 3 is an IC according to the present invention mounted on a terminal device.
It is a figure showing a card.

FIG. 4 is a truth table showing a position state of an IC card attached to a terminal device.

[Explanation of reference numerals] 1 IC card according to the present invention 2 Upper surface of IC card 3 Lower surface of IC card 4 Side surface of IC card 1 5 Side surface of IC card 2 10 Position detection terminal 1 11 Position detection terminal 2 12 Position detection terminal 3 13 Position Detection Terminal 4 20 Position Detection Diode 30 Terminal Device 31 Terminal Device Contact Pin 1 32 Terminal Device Contact Pin 2 33 Terminal Device Contact Pin 3 34 Terminal Device Contact Pin 4

Claims (1)

[Scope of utility model registration request] 1. An IC card including at least a storage unit and an input / output terminal unit, and position detection terminals (10) at four points symmetrical with respect to the center of the card.
An IC card comprising (11), (12) and (13), wherein the position detecting terminals are connected by a position detecting diode (20).