JPH0478985A - Information storing and reproducing device - Google Patents

Abstract

PURPOSE:To input and output the plural sequences of information without fail by magnetically coupling a thin coil, which is provided in an information storage medium, and a magnetic field generating means provided at an information input / output device in the state of separating them each other when the information storage medium is held by a holding means. CONSTITUTION:When an information storage medium 2 is held by the information storage medium holding means, a thin coil 13a provided at an information signal exchange part B of the information storage medium 2 and a magnetic field generating means 9a provided at an information signal input / output part A of an information input / output device 1 are positioned so as to be magnetically coupled in the state of being separated each other. Therefore, information can be exchanged through the thin coil 13a and the magnetic field generating means 9a. Thus, information can be inputted / outputted between the information storage medium 2 and the information input / output device 1 without using any mechanical contact and when inputting / outputting information, reliability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an information storage medium such as an IC card and an information input/output device such as an IC card reader/writer that inputs and outputs information to and from the information storage medium. The present invention relates to a storage/reproduction device.

2. Description of the Related Art Conventionally, writing information to an IC card or reading information stored in an IC card is performed by an IC card reader/writer.

Generally, an IC card is provided with contacts such as a power supply terminal, an information input/output terminal, etc., and an IC card reader/writer is provided with a connector having a leaf spring-shaped connection terminal corresponding to the contacts.

Then, when the IC card is set in the connector of the IC card reader/writer, the contacts of the IC card are pressed by the connection terminals of the connector of the IC card reader/writer, and as a result, a connection is established between the two.

At this time, information is written to or read from the IC card by inputting and outputting information to and from the IC card reader/writer.

Problems to be Solved by the Invention In the case of such conventional information storage and reproducing devices, the connection between the contacts of the IC card and the connection terminals of the connector of the industrial C card reader/writer is achieved through mechanical contact. There is.

Therefore, if the usage environment deteriorates, the IC
The contact points of the card or the connection terminals of the connector of the IC card reader/writer deteriorate, increasing the contact resistance value when the two are connected, and reducing the reliability when inputting and outputting information.

In addition, as IC cards are repeatedly inserted and removed from an IC card reader/writer, their mutual contact parts wear out, and the elasticity of the leaf springs that form the connection terminals of the connector deteriorates. This may cause poor contact.

Means for Solving the Problems An information storage medium formed by disposing a semiconductor integrated circuit on a card-like substrate, an information input/output device for inputting and outputting information to and from the information storage medium, and an information storage medium for inputting and outputting information to and from the information storage medium. A sheet-like thin coil provided in the information signal transmitting/receiving section; a magnetic field generating means provided in the information signal input/output section of the information input/output device; The information storage medium holding means provided in the information input/output device is configured to position the thin coil and the magnetic field generating means so that they are magnetically coupled with each other while being separated from each other.

Effect When the information storage medium is held by the information storage medium holding means, the thin coil provided in the information signal exchange section of the information storage medium and the magnetic field generation means provided in the information signal input/output section of the information input/output device Since they are positioned so that they are magnetically coupled while being separated from each other, information can be exchanged via the thin coil and the magnetic field generating means. That is, information can be input and output without using mechanical contacts between the information storage medium and the information input/output device.

Embodiment A first embodiment of the present invention will be explained based on FIG. As shown in FIG. 1, this information storage/reproduction device includes an IC card reader/writer 1 as an information input/output device, and an information storage medium formed by disposing a semiconductor integrated circuit on a card-shaped substrate. It consists of an IC card 2.

The IC card reader/writer 1 includes an external device control section 7 connected to an external device including a display section 3, an operation section 4, a memory section 5, and a transmission control section 6;
A power excitation circuit section 9 is connected to the power supply section 8 and is connected to a coil 9a serving as a magnetic field generating means; a transmission/reception control section 10 connected to the external device control section 7; a modulation circuit section 11 whose input side is connected and whose output side is connected to the coil 9a via a coupling capacitor lla, and whose output side is connected to the transmission/reception control section 10 and whose input side is connected to the coil 9a via a coupling capacitor 12a. and a demodulation circuit section 12 connected to the coil 9a.

However, A in the figure indicates an information signal input/output section. Further, the transmission control section 6 is connected to external equipment etc. via a communication line 6a.

On the other hand, 1. The C card 2 has a sheet-like thin coil 1.
3a is connected to the power conversion unit 13, an IC card control unit 15 is connected to the memory unit 14, a transmission/reception control unit 16 is connected to the IC card control unit 15, and an input side is connected to the transmission/reception control unit 16. and a modulation circuit section 17 whose output side is connected to the coil 13a via a coupling capacitor 17a, and whose output side is connected to the transmission/reception control section 16 and whose input side is connected to the coil 13a via a coupling capacitor 18a. 13a and a demodulation circuit section 18 connected to the demodulation circuit section 13a.

However, B in the figure indicates an information signal transmitting/receiving section. Furthermore, the coil 9a and the coil 13a have the relationship of a primary coil and a secondary coil of a transformer, respectively.

Further, the IC card 2 is connected to the IC card reader/writer by a card holder (not shown) as an information recording medium holding means provided in the IC card reader/writer 1.
It can be attached to and detached from the lighter 1, and when attached, the coil 9a and the coil 13a are positioned so that they are magnetically coupled while being separated from each other.

Note that the memory section 14 stores information about the operation of the IC card 2,
In addition to the control program, it stores user data, etc., and is a rewritable non-volatile memory device such as EEPROM or a read-only memory device (ROM).
, a readable/writable memory element (RAM), etc., and its specific configuration differs depending on the usage form of the IC card 2.

In such a configuration, the power excitation circuit section 9 is controlled by the external device control section 7 to drive the coil 9a and generate an induced voltage in the coil 13a.

This induced voltage is converted into a DC voltage by the power converter 13 and then supplied to each part of the IC card 2.

Information from an external device, that is, information input by the user from the operation unit 4, communication information from the outside via the communication line 6a and the transmission control unit 6, information stored in the memory unit 5, etc. When writing information to the IC card 2 based on the above, this information is input to the modulation circuit section 11 via the external device control section 7 and the transmission/reception control section 10 to become a modulation signal, and this modulation signal is sent to the coupling capacitor. It is input to the coil 9a via lla.

At this time, a signal in which the modulation signal and the power signal from the power excitation circuit section 9 are superimposed is input to the coil 9a, and as a result, the voltage induced in the coil 13a is converted into a DC voltage in the same manner as described above. At the same time, information demodulated by the demodulation circuit section 18 via the coupling capacitor 18a is stored in the memory section 14 via the transmission/reception control section 16 and the IC card control section 15.

On the other hand, the IC card 2 is read by the IC card reader/writer 1.
When reading the stored information, a command for reading the information is input to the IC card control section 15 in the same manner as described above. The IC card control section 15 to which this command signal has been input reads out the corresponding storage information from the memory section 14 and inputs it to the transmission/reception control section 16, which drives the modulation circuit section 17 to read out the stored information. This modulated signal is applied to the coupling capacitor 17a and the coil 13a.
, the demodulated storage information is input to the demodulation circuit section 12 via the coil 9a and the coupling capacitor 12a, and the demodulated storage information is stored in the memory section 5 via the transmission/reception control section 10 and the external device control section 7. Control unit 6, communication line 6a
is transmitted to external equipment via.

In this way, information can be input and output between the IC card reader/writer 1 and the IC card 2 without using mechanical contacts. For this reason, the usage environment deteriorates, I
It is possible to realize a highly reliable information storage and reproducing device that reliably inputs and outputs information regardless of the number of times the C card 2 is attached and detached.

Furthermore, the power by the power excitation circuit section 9 and the modulation circuit section 11
Since the information modulated by
Since information is inputted and outputted using a, the IC card 2 can be made smaller and the manufacturing cost of the device can be reduced.

Next, a second embodiment of the present invention will be described based on FIG. 2. This information storage/reproduction device includes a tone generation section 19 and a tone modulation circuit section 20 instead of the modulation circuit section 11 in the IC card reader/writer 1 shown in FIG. A circuit section 21 is provided,
Furthermore, a tone generation circuit section 22 and a tone modulation circuit section 23 are provided in place of the modulation circuit section 17 in the IC card 2, and a tone discrimination circuit section 24 is provided in place of the demodulation circuit section 18. Therefore, the same reference numerals are used for the same parts as those described in the first embodiment, and the description thereof will be omitted.

In such a configuration, when writing information to the IC card 2 based on information from an external device, this information is input to the tone generation circuit section 19 via the external device control section 7 and the transmission/reception control section lO1. Ru.

At this time, the tone generation circuit section 19 outputs a tone signal according to the input information, and after this tone signal is modulated by the tone modulation circuit section 20, the coupling capacitor ll
It is input to the coil 9a via a.

At this time, a signal in which the modulation signal and the power signal from the power excitation circuit section 9 are superimposed is input to the coil 9a, and as a result, the voltage induced in the coil 13a is
3 converts it into a DC voltage and becomes the driving voltage for the IC card, and at the same time, the coupling capacitor 1
The modulation signal input via 8a is sent to the tone discrimination circuit section 2.
4, only the information signal is discriminated, and this information signal is stored in the memory section 14 via the transmission/reception control section 16 and the IC card control section 15.

Note that the IC card 2 can be read by the IC card reader/writer.
Since the operation when reading out the stored information is self-evident, its explanation will be omitted.

In this embodiment, the tone generation circuit sections 19 and 22 have a function of generating a plurality of tone signals, and the tone discrimination circuit sections 21 and 24 have a function of discriminating between them, so that information of a plurality of series is superimposed. Even if an information storage/reproduction device capable of inputting and outputting information is formed, since the inputting and outputting of the information is performed without using mechanical contacts, the usage environment deteriorates, the number of times the IC card 2 is inserted and removed, etc. Regardless of the situation, it is possible to realize a highly reliable information storage/reproduction device that reliably inputs and outputs information.

Effects of the Invention As described above, the present invention provides, when an information storage medium is held by the information storage medium holding means, a thin coil provided in the information signal transfer section of the information storage medium and an information signal of the information input/output device. Since the magnetic field generation means provided in the input/output section are positioned so as to perform magnetic coupling while being separated from each other, information can be exchanged via the thin coil and the magnetic field generation means. I can do it. That is, information can be input and output without using mechanical contacts between the information storage medium and the information input/output device.

This makes it possible to realize a highly reliable information storage/reproduction device that reliably performs input/output even when multiple series of information are superimposed.

Furthermore, since electric power and information can be superimposed and transmitted to the thin coil by the magnetic field generating means, a driving power source such as a battery can be eliminated from the information storage medium. Since information can be input and output using the thin coil, the information storage medium can be made into an IJS type and the manufacturing cost of the device can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an overview of the hardware configuration in a first embodiment of the invention, and FIG. 2 is a block diagram showing an overview of the hardware configuration in a second embodiment of the invention. ■... Information input/output device, 2... Information storage medium, 9a
...Magnetic field generating means, 132L...Thin coil, A.
...Information signal input/output section, B...Information signal exchange section i! f
5 Applicant Okamoto Machine Tool Manufacturing Co., Ltd. I+
＋翫″：：′１ Self-farming 1

Claims (1)

[Claims] An information storage medium formed by arranging a semiconductor integrated circuit on a card-shaped substrate, an information input/output device that inputs and outputs information to and from the information storage medium, and an information signal transfer section provided in the information storage medium. a sheet-like thin coil provided in the information signal input/output section of the information input/output device; 1. An information storage and reproducing apparatus comprising: an information storage medium holding means provided in the information input/output device, the information storage medium holding means being positioned such that the means are spaced apart from each other and magnetically coupled to each other.