JP2000353217A - Non-contact ic card reading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact IC card reading device whose power consumption is small with respect to a non-contact IC card reading device capable of visualizing invisible information incorporated on the non-contact IC card. SOLUTION: This is a non-contact IC card reading device 1008 for supplying the power and data of a non-contact IC card by an electromagnetic wave, and for reading response data from the non-contact IC card by non-contact. This device is provided with a charging means, a means for protecting the charging means, an information transmitting means, an information selecting means, a reading mechanism, a control means, and a power controlling means for supplying a power to the information transmitting means or the like only at the time of performing access to the non-contact IC card.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact IC card reader.

[0002]

2. Description of the Related Art FIG. 17 is a block diagram showing a conventional non-contact IC card reading / writing apparatus 100.

Conventional non-contact IC card read / write device 10
0 is a contactless IC card C
To read information stored in the non-contact IC card C in a non-contact manner.

[0004] A commercial power supply 101 is connected to the non-contact IC card read / write device 100, and the power supply device 102 converts the DC voltage into a DC voltage necessary for the operation of the read / write mechanism 103, and the converted DC voltage is supplied to the read / write mechanism 103. The read / write mechanism 103 supplies power, a clock, and data based on a command of the information processing device 105 to the non-contact card C by electromagnetic waves via the coil L1.

On the other hand, the non-contact IC card C transmits response data from the coil L2 by electromagnetic waves, and the read / write mechanism 103 receives the response data via the coil L1 and reports it to the information processing device 105. Information processing device 10
Reference numeral 5 performs electronic settlement, management of entry and exit, and the like based on the response data.

[0006]

However, in the conventional non-contact IC card reading / writing apparatus 100, the non-contact IC card C is prepared for data transmission / reception with the non-contact IC card C approaching irregularly.
Even if the C card C does not exist, the read / write mechanism 103
However, the power is always released to the space, and the power of about 1 W is consumed.

In controlling the read / write mechanism 103 in configuring the system, the operation of the information processing device 105 is necessary, and the information processing device 105 consumes about 20 W of power. Read / write mechanism 103, information processing device 105
Are 24 Wh and 48 W, respectively.
0 Wh, which requires a commercial power supply or the like as a power source of the conventional system. Therefore, the power consumption is too large to use the above-mentioned conventional system as a battery-powered portable system. Therefore, it is necessary to confirm the recorded contents of the non-contact IC card in a place other than a place where a dedicated read / write device is set. Therefore, there is a problem that a portable non-contact IC card reader is not practical.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a non-contact IC card reader which can visually recognize invisible information contained in the non-contact IC card and which consumes less power. Things.

[0009]

As a first means for solving the problems,
In a non-contact IC card reader for supplying power and data of the non-contact IC card by electromagnetic waves and reading response data from the non-contact IC card by non-contact, a power storage means for storing electric energy; Providing appropriate charging current and charging voltage depending on the power storage mechanism of the power storage means, preventing irreversible deterioration of the power storage means due to overcharge and overdischarge, and receiving perceived predetermined data. An information transmitting means for receiving the perception request issued by the user, an information selecting means for communicating the perception request information issued by the user to the control means, and transmitting a read command to the contactless IC card. Non-contact IC
A reading mechanism for receiving data from the card, a control means for controlling at least one of the information transmitting means, the information selecting means, and the reading mechanism; and an information transmitting means, the information selecting means, the reading mechanism, The non-contact IC for at least one of the control means.
And a power control unit for supplying power only when accessing the card. As a second solution, in the first solution,
It is assumed that the contactless IC card reader has a power generation means. As a third solution, in the first solution,
The non-contact IC card reader is a non-contact IC card reader which is a card-shaped device.
As a fourth solution, in the first solution, the power generation means is a thin-film solar cell, the power storage means is a thin-film secondary battery, the information transmission means is a liquid crystal display device, The non-contact IC card reader is a non-contact IC card reader having a card shape. As a fifth solution, in the first solution, the power control means is a non-contact IC card reader to which a malfunction prevention means is added.
As a sixth solution, in the fifth solution, the malfunction prevention means is a contactless IC card reader which is a switch provided on a side surface of the contactless IC card reader. As a seventh solution, in the fifth solution, the malfunction preventing means is two switches provided on a side surface of the non-contact IC card reader, and the two switches are connected in series. It is a non-contact IC card reader. According to an eighth aspect of the present invention, in the first aspect, the power supply block includes the power storage unit and the protection unit for the power storage unit, and the power supply block includes the information transmission unit, the information selection unit, and the reading unit. A contactless IC card reader having a mechanism and the control means, wherein the power control means is connected between the power supply block and the power supply block. As a ninth solution, in the first solution, the power supply block includes the power storage means and the protection means for the power storage means, and the power supply block includes the information transmission means, the information selection means, and the control means. Means,
A contactless IC card reader in which the power control means is connected between the power supply block and the power supply block and between the power supply block and the reading mechanism. In the present invention, in the first to ninth solving means, the control means checks the charged amount of the thin-film secondary battery, and if there is not enough remaining battery power to perform the reading operation, the information transmitting means determines whether or not the battery capacity is low. In addition to having a function of notifying that the non-contact IC card has been cut, the malfunction preventing means is installed at two places on the side of the non-contact IC card reading device where the thumb and forefinger hit, and the mechanically movable part is the non-contact IC card reader. The card reading device comprises two switches installed on a concave surface from the case plane, the two switches are connected in series, and reading is started only when the two switches are both turned on. This is a non-contact IC card reader.

[0010]

[Embodiment and Examples of the Invention Fig. 1 is a block diagram showing the overall circuit configuration of the non-contact IC card reader 100 ₁ which is the first reference example.

Non-contact IC card reader 100
₁ has a power supply block 2, a power control means 6, and a power supplied block 7 which receives power supply by the power control means.

The power supply block 2 has a power generation means 3, a protection means 4 for the power storage means, and a power storage means 5.

The power generating means 3 generates electric energy by a power generating mechanism, and includes a solar cell, a mechanical power generating element, and the like. Note that the mechanical power generation element includes a pendulum such as a weight and an element that converts vibration of the pendulum into electric energy.

The power storage means 5 stores the electric energy generated by the power generation means 3. The protection means 4 of the power storage means provides an appropriate charging current and a charging voltage depending on the power storage mechanism of the power storage means 5, and at the same time, prevents irreversible deterioration of the power storage means 5 due to overcharge or overdischarge. . The amount of electric energy stored in the power storage unit 5 is transmitted to the control unit 10.

The power control means 6 is a switch for executing or stopping the power supply from the power supply block 2 to the power supply block 7, and only when accessing the non-contact IC card C, the power supply block 7 ( Load).

The power supply block 7 includes an information transmitting means 8
, An information selection unit 9, a control unit 10, a reading mechanism 11, and a coil L1.

The information transmitting means 8 receives data from the control means 10 and perceives it, and is constituted by a display or the like. The information selection means 9 receives the perception request issued by the user, and communicates the perception request information issued by the user to the control means 10 and scrolls the data to be displayed on the information transmission means 8. is there.

The control means 10 is a means for controlling the information transmission means 8, the information selection means 9, and the reading mechanism 11.

The reading mechanism 11 serves as an interface between the control means 10 and the non-contact IC card C, and sends a read command to the non-contact IC card C and receives data from the non-contact IC card C. It is.

The non-contact IC card C has a coil L2
Having.

FIG. 2 shows a non-contact IC card reader 1.
00 is a block diagram showing a configuration example of a reading mechanism 11 in _one.

The reading mechanism 11 includes an ASK modulation circuit 30
, Driver 31, carrier generation circuit 32, FSK demodulation circuit 33, band-pass filter 34, and amplifier 35
And The control means 10 is provided with an input / output interface 23.

Next, the operation of the reading mechanism 11 will be described.

First, the control means 10 outputs data to be transmitted to the contactless IC card C to the reading mechanism 11 via the input / output interface 23. Reading mechanism 11
ASK-modulates transmission data with a carrier wave also serving as an operation clock of the contactless IC card C, and transmits the data as electromagnetic waves to the contactless IC card C via the coil L1.

On the other hand, response data due to electromagnetic waves from the non-contact IC card C is received by the coil L 1, the signal is amplified by the amplifier 35, only the signal band is extracted by the band pass filter 34, and the received data is decoded by the FSK demodulation circuit 33. Get. This received data is taken into the control means 10 via the input / output interface 23.

FIG. 3 is a block diagram showing a general configuration example of the non-contact IC card C.

The non-contact IC card C includes a coil L2, a rectifier circuit 36, a low-pass filter 37, and a constant voltage circuit 3.
8, a clock circuit 39, a data processing circuit 40, a driver 41, and an FSK modulation circuit 42.

The non-contact IC card C is disclosed in, for example,
In the case where the non-contact IC card reader 1001 has a plurality of data modulation / demodulation schemes, the non-contact IC card reader 1001 uses the modulation scheme of the non-contact IC card to be accessed, thereby making the non-contact IC card reader 1001 use the modulation scheme. Contact I
You can access the C card.

Next, the operation of the non-contact IC card C will be described.

The transmission data transmitted from the reading mechanism 11 is received by the coil L2 and supplied to the rectifier circuit 36 and the clock circuit 39. The received signal supplied to the rectifier circuit 36 is rectified by the rectifier circuit 36, and a received data component is extracted by the low-pass filter 37.

The low-pass filter 37 supplies the obtained reception data to the data processing circuit 40 and the constant voltage circuit 38. The constant voltage circuit 38 smoothes the received data to a constant DC voltage and supplies power to an electronic circuit of the non-contact IC card. The clock circuit 39 determines the operation clock of the data processing circuit 40 and the FS from the transmission data received by the coil L2.
A carrier wave of the K modulation circuit 42 is generated. The data processing circuit 40 includes a CPU, a RAM, a ROM, and an EEPROM.

Next, the operation of the data processing circuit 40 will be described.

The data processing circuit 40 performs data processing based on the received data received from the low-pass filter 37 and the operation clock received from the clock circuit 39. When power is supplied to the data processing circuit 40, first, the CPU executes a program mounted on the ROM, analyzes the received data, and processes the data based on the analyzed control command. If a read command is received, the received read command specifies E
The data recorded in EPROM or ROM is
It outputs to the K modulation circuit 42 and waits for the next received data. The modulation circuit 42 modulates the carrier supplied by the clock circuit 39 according to the data output by the data processing circuit 40.
SK modulation is performed, and a modulation signal is supplied to the driver 41. The upper driver 41 power-amplifies the modulated signal, and transmits the amplified signal to the reading mechanism 11 by electromagnetic waves through the coil L2.

FIG. 4 shows a non-contact IC card reader 1.
00 is a diagram showing a circuit configuration of the control means 10 in _one.

The control means 10 includes a program storage ROM
20, a timer 21, a CPU 22, an input / output interface 23, and a RAM 24. Power control means 6
When the power supply from the power supply block 2 to the power supply block 7 is started, the control unit 10 is activated. Further, when the power supply from the power supply block 2 to the power supply block 7 is stopped by the power control unit 6, the control unit 10 stops.

FIG. 5 is a flowchart showing an overall general operation of the control means 10.

First, when power supply to the power supply block 7 is started, the control means 10 is started (S1), the amount of power stored in the power storage means 5 is confirmed (S2), and the remaining battery level is notified from the information transmission means 8. (S3). Here, if there is not enough remaining battery power to perform the reading operation (S4), the information transmission means 8 notifies the battery running out (S5).

If there is enough remaining battery power to perform the reading operation (S4), an initial read command is sent to the reading mechanism 11 (S6), response data is received from the reading mechanism 11 (S7), and the liquid crystal display device is operated. The response data is notified by the information transmitting means 8 (S8), and the presence or absence of an instruction from the information selecting means 9 is confirmed (S9). If an instruction has been received from the information selecting means 9 (S10), the instruction is analyzed (S11), and if the instruction is valid (S12),
A read command for executing the instruction is created (S1
3) A read command is sent to the reading mechanism 11 (S14), response data is received from the reading mechanism 11 (S15), and the information transmission means 11 notifies the response data (S16).

If no instruction has been received from the information selecting means 9 (S10), the power storage amount of the power storage means 5 is confirmed (S10).
17) The information transmission means 8 notifies the remaining battery level (S
18) If the reading operation is not possible (S19), the information transmission means 8 notifies the battery running out (S20).

If the instruction is not valid (S12),
The information transmission means 8 notifies that the instruction is invalid (S21).

FIG. 6 shows a non-contact IC card reader 1.
00 is a flowchart showing a _first operation.

First, the contactless IC card reader 10
0 ₁ start-up operation, and starts power supply to the power supply destination block 7, activates the control means 10 (S31), sets the timer A, starts time measurement of the timer A (S32). Here, when a switch is used as the power control means 6, the timer time of the timer A is set after the switch is turned on and then the contactless IC card reader 100 ₁
Is the time during which the operation is continued, for example, 1 to 5 minutes.

When the timer time of the timer A elapses (S33), a sleep mode (S60) is entered. This sleep mode will be described in detail with reference to FIG.

If the timer time of the timer A has not elapsed (S33), the power storage amount in the power storage means 5 is checked (S33).
34), the information transmission means 8 notifies the remaining battery level (S
35), the remaining battery level is equal to or more than the energy that can be read (S36), and if a start signal has been received from the power control means 6 (S37), the mode is shifted to the reading mode (S40). It is determined whether the remaining battery power is smaller than the energy that can be read (S36).
If the start signal has not been received from (S37), the information transmission means 8 notifies the battery running out (S38).

FIG. 7 is a flowchart showing the operation of the control means 10 in the reading mode (S40).

First, the timer A is reset, and measurement of the timer time of the timer A is started (S41).
1 (S42), receives response data from the reading mechanism 11 (S43), informs the response data in the information transmission means 8 (S44), and confirms the presence or absence of an instruction from the information selection means 9. Then, if an instruction has been received from the information selecting means 9 (S46), the measured value of the timer A is reset (S47), the instruction from the information selecting means 9 is analyzed (S48), and the instruction is given. Is valid (S49), a read command for executing the instruction is generated (S50), the read command is sent to the reading mechanism 11 (S51), and response data is received from the reading mechanism 11 (S52). The transmission means 8 notifies the response data (S53).

On the other hand, if the instruction has not been received from the information selecting means 9 (S46) and the timer time of the timer A has elapsed (S54), the power supply to the predetermined circuit is stopped to thereby stop the predetermined circuit. (S60). About this sleep mode,
This will be described in detail with reference to FIG.

If no instruction has been received from the information selecting means 9 (S46) and the timer time of the timer A has elapsed (S5).
4), the amount of power stored in the power storage means 5 is confirmed (S55), and the remaining amount of the battery is notified by the information transmission means 8 (S56), and the remaining amount of the battery is smaller than the amount corresponding to the energy that allows the reading operation. If it is the remaining amount (S57). Information transmission means 8
Is notified of battery exhaustion in (S58).

If the instruction from the information selecting means 9 is invalid (S49), the information transmitting means 8 notifies the invalidity of the instruction (S59).

FIG. 8 is a flowchart showing the operation of the control means 10 in the sleep mode.

The sleep mode is a mode in which the operation of the predetermined circuit is stopped by stopping the power supply to the predetermined circuit.

First, the function of the information transmitting means 8 is stopped (S
61), and permit the CPU 22 to external interrupt (S6).
2) The CPU 22 is put to sleep (S63). Here, if there is an external interrupt (S64), the CPU 22 releases the sleep state and starts data processing (S65).
The CPU 22 disables the external interrupt (S66), restarts the function of the information transmitting means 8 (S67), and returns.

That is, the above reference example is a non-contact IC card C
A reading step of reading invisible information contained therein, an instruction detecting step of detecting an instruction which is a perceptualization request information issued by a user, and permitting an external interrupt if the instruction cannot be detected for a predetermined time. And a sleep mode execution step of executing a sleep mode for stopping the operation of the CPU, and a CPU operation resuming step of operating the CPU when the external interrupt occurs and prohibiting the external interrupt thereafter. Power consumption of the CPU is reduced.

In the above reference example, the power supply block 2
The power supply to the reading mechanism 11 from the
After a predetermined time of about 1 to 5 minutes elapses after the stop, the control means 10 stops the information transmitting means 8 and the information selecting means 9 or puts them in a standby state. By doing so, the power consumption in the power supplied block 16 is reduced. In this case, as described above, the CP
The processing capacity of U22 may be reduced, thereby reducing the power consumption of the control circuit 10 itself.

[0055] In the contactless IC card reader 100 _1, as the power control unit 6 may use a mechanical switch such as a micro switch or tact switch. When a mechanical switch is used, when the mechanical switch is non-conductive, power supply from the power storage means 5 can be completely blocked, and the non-contact IC card reader 1 can be used.
00 it is possible to prevent wasteful power consumption at the time of ₁ standby.

Here, the non-contact IC card reader 1
Assume that the power consumption during the operation of 00 ₁ is 1 W and 1
If it is used for 0 minutes, the daily power consumption in this case is 167 mWh, for example, 3.6V50m
Electric power can be supplied from a storage battery of about Ah. Therefore, the non-contact IC card reader 100 ₁
The invisible information contained in the non-contact IC card C can be perceived even in places where commercial power cannot be obtained, while carrying or moving.

The non-contact IC card reader 10
0 ₁ is a non-contact IC card reader that supplies power and data of the non-contact IC card by electromagnetic waves and reads response data from the non-contact IC card in a non-contact manner; Providing a proper charging current and a charging voltage depending on a power storage mechanism of the power storage means, and a protection means for the power storage means for preventing irreversible deterioration of the power storage means due to overcharge and overdischarge; Information transmission means for receiving and perceiving the information, information selection means for receiving a perception request issued by the user and communicating the perception request information issued by the user to the control means, and a read command to the contactless IC card. A reading mechanism for transmitting and receiving data from the non-contact IC card, and at least one of the information transmitting means, the information selecting means, and the reading mechanism; And control means also controls the one
Non-contact IC card having at least one of the information transmission means, the information selection means, the reading mechanism, and the control means, a power control means for supplying power only when accessing the non-contact IC card It is an example of a reading device.

When the above reference example is grasped as a recording medium, the above reference example is a reading procedure for reading invisible information contained in the non-contact IC card C, and perceptualization request information issued by the user. An instruction detection procedure for detecting an instruction; a sleep mode execution procedure for executing a sleep mode for stopping an operation of the CPU while permitting an external interrupt if the instruction cannot be detected for a predetermined time; In this case, the computer-readable recording medium stores a program that causes the computer to execute the CPU and, in addition, to execute the CPU operation resuming procedure for inhibiting the external interrupt thereafter. As the recording medium, a ROM, a CD, an FD, a hard disk, and the like can be considered.

[0059] Figure 9 is a block diagram illustrating a contactless IC card reader 100 ₂ which is the second reference example.

Non-contact IC card reader 100
Reference numeral ₂ denotes a power supply block, a power control means 6, a reading mechanism 11, a coil L1, and a power supply block 16 which is always supplied with power from the power supply block 2.

The power control means 6 has a switch function for executing or stopping the power supply from the power supply block 2 to the reading mechanism 11 according to a user's instruction, and supplies power from the power supply block 2 to the reading mechanism 11. Means that the power supply is being executed when the
To tell. Further, the power control unit 6 starts power supply from the power supply block 2 to the reading mechanism 11, and outputs a start signal indicating that power supply from the power supply block 2 to the reading mechanism 11 is being executed. To the control means 10.

The control means 10 executes the access to the non-contact IC card C through the reading mechanism 11 upon receiving the activation signal. The circuit configuration and operation of the control means 10 are as follows. Apparatus 100 ₁
Is the same as the circuit configuration and operation of the control means 10 in the above.

That is, the power control means 6 includes the power supply block 2 to the power supply block 16, the reading mechanism 11
Is a switch for executing or stopping power supply to the power supply block 16 and a unit for supplying power to the power supply block 16 and the reading mechanism 11 (load) only when accessing the non-contact IC card C.

In the power supply block 16, when the power supply block 2 supplies power to the reading mechanism 11, when the control means 10 receives a start signal from the power control means 6 or when the information selection means 9 When there is an input to the control means 10, it may be returned from the power consumption reduction state to the normal state.

FIG. 10 shows a non-contact IC according to a third reference example.
It is a block diagram showing a card reader 100 _3.

Non-contact IC card reader 100 ₃
Are a thin film solar cell 50, a constant current circuit 51, a semiconductor switch 52, an overvoltage prevention circuit 53, and a thin film secondary battery 54.
, A switch SW, and a power supply block 56.

As the thin-film secondary battery 54, a thin battery such as a lithium secondary battery or a Ni—H secondary battery can be used. Hereinafter, a case where a lithium secondary battery is used as the thin-film secondary battery 54 will be described.

The switch SW is an example of the power control means 6.

[0069] Power-receiving block 56, a specific example of the power supply destination block 7 in the non-contact IC card reader 100 _1, a liquid crystal display device 57, a key input unit 58, an oscillation circuit 59, ASK modulation circuit 60, a driver 61, a coil L1, an AD converter 63, F
It has an SK demodulation circuit 64, a band pass filter 65, an amplifier 66, and a control circuit 67.

Next, the non-contact IC card reader 10
0 ₃ of the operation will be explained.

Light energy is converted into electric energy by the thin-film solar cell 50, and the electric energy is stored in the lithium secondary battery 54 via the constant current circuit 51 and the semiconductor switch 52. The constant current circuit 51 prevents an excessive charging current from flowing from the thin-film solar cell 50 to the lithium secondary battery 54. The overvoltage prevention circuit 53 monitors the charge end voltage of the lithium secondary battery 54, and when the voltage between the terminals of the lithium secondary battery 54 becomes higher than the charge end voltage, turns off the semiconductor switch 52 and stops charging. As a result, overvoltage of the lithium secondary battery 54 is prevented.
Note that the overvoltage prevention circuit 53 includes a reference voltage circuit, a comparator, and the like.

When accessing the non-contact IC card C,
When the user turns on the switch SW, the power-supplied block 56 is activated and becomes accessible. The control circuit 67 checks the output voltage of the lithium secondary battery 54 via the AD converter 63. Control circuit 67
In the ROM, a correspondence database between the output voltage of the lithium secondary battery 54 and the remaining battery capacity is stored, and the control circuit 67 determines the remaining battery capacity of the lithium secondary battery 54 based on this correspondence database. The determined remaining battery capacity is displayed on the liquid crystal display device 57, and when the remaining battery capacity is almost exhausted, the liquid crystal display device 57 indicates that the battery capacity is low.

When the control circuit 67 accesses the non-contact IC card C, the operation navigation by the liquid crystal display device 57 and the access content selected by the key input device 58 are stored in the ROM in the control circuit 67. By referring to the correspondence database between the access content and the control command, the command data to be actually transmitted to the non-contact IC card C can be obtained.

Command data transmitted to the non-contact IC card C includes an ASK modulation circuit 60, a driver 61, and a coil L.
1 and transmitted to the non-contact IC card C. AS
An oscillation circuit 59 generates a carrier wave of the K modulation circuit 60. Response data from the non-contact IC card C is received by the coil L1 and input to the control circuit 67 via the amplifier 66, the band pass filter 65, and the FSK demodulation circuit 64. When receiving the response data, the control circuit 67 displays the response data on the liquid crystal display device.

After this operation, the user accesses the interactive non-contact IC card C via the key input device 58 and the liquid crystal display device 57. Also,
When the user turns off the switch SW, the access to the non-contact IC card C can be terminated at any time. Power MOSFE as the semiconductor switch 52
General semiconductor switch elements such as T and bipolar transistors can be used.

Depending on the characteristics of the thin-film solar cell 50, there is no possibility that an excessive charging current flows into the lithium secondary battery 54. In this case, the constant current circuit 51 can be omitted.

[0077] Figure 11 is a diagram showing an example of the installation position of the switch SW provided in the contactless IC card reader 100 _3.

[0078] The liquid crystal display device 57 is provided on the upper surface of the non-contact IC card reader 100 _3, the switch SW is
It is installed on the side surface SF2 of the contactless IC card reader 100 _3. A non-contact IC can be used as a switch SW, such as a micro switch or a tact switch.
When the card reader 100 ₃ is held by the hand H, the switch SW is installed at a position where the mechanically movable portion of the switch SW is naturally pressed and turned on.

Here, the non-contact IC card reader 1
00 ₃ when housed in a bag or a card case, the switch SW is under pressure, the non-contact IC card reader 10
0 ₃ not to start unintended access operation between the mechanically movable part of the switch SW, the non-contact IC
It is necessary to install at least the concave surface than the card reader 100 ₃ Case plane. As the thin film secondary battery 54, an electric double layer capacitor or the like may be used in addition to the lithium secondary battery 54.

FIG. 12 shows a non-contact IC according to a fourth reference example.
The card reader 100 ₄ is a sectional view taken in the longitudinal direction thereof.

Non-contact IC card reader 100
₄ is a thin-film solar cell 50, a lithium secondary battery 54,
A liquid crystal display device 57, a coil L1, an electronic circuit 71,
By having the circuit board 72 and the electromagnetic wave shield 73, the shape is made into a card shape.

As the thin-film solar cell 50, a thin-film solar cell such as an amorphous silicon solar cell can be used, and by using a lithium secondary battery or the like,
A film-shaped storage battery can be realized, and the thickness of the liquid crystal display device 57 can be reduced to about 0.8 to 2 mm. In addition, the electromagnetic wave shield 73 allows the electronic circuit 71
And the effects of electromagnetic waves on components such as lithium secondary batteries. As the electromagnetic wave shield 73,
For example, an Amoric GEE sheet from Koshida Shoji can be used.

FIG. 13 shows a non-contact IC according to a fifth reference example.
It is a block diagram showing a card reader 100 _5.

Non-contact IC card reader 100
₅ is a thin film solar cell 50, a constant current circuit 51, a semiconductor switch 52, an overvoltage prevention circuit 53, a thin film secondary battery (for example, a lithium secondary battery) 54, and a switch 56.
, A liquid crystal display device 57, a key input device 58, an oscillation circuit 59, an ASK modulation circuit 60, a driver 61, a coil L1, an AD converter 63, and an FSK demodulation circuit 6.
4, a bandpass filter 65, an amplifier 66, a control circuit 67, a block 68 supplied with power by the switch SW, and a power supplied block.

Next, the non-contact IC card reader 10
0 ₅ of the operation will be explained.

A thin-film solar cell 50, a constant current circuit 51,
A semiconductor switch 52, an overcurrent protection circuit 53, operation of the lithium secondary battery 54 is similar to the operation in the non-contact IC card reader 100 _4.

The power supply block is a liquid crystal display device 57.
, A key input device 58, an AD converter 63, and a control circuit 67. A block 68 that receives power supply from the switch SW includes an oscillation circuit 59, an AS
K modulation circuit 60, driver 61, coil L1, F
It comprises an SK demodulation circuit 64, a band pass filter 65, and an amplifier 66.

In the non-contact IC card reader 100 ₅ , when accessing the non-contact IC card C, when the user turns on the switch SW, the power is supplied to the block 68 that receives the power supply, and the access becomes possible. At the same time, the control circuit 67 is notified of the access signal.
The control circuit 67 checks the output voltage of the lithium secondary battery 54 by the AD converter 63, and reads the battery of the lithium secondary battery 54 from the correspondence database between the output voltage and the remaining battery capacity stored in the ROM in the control circuit 67. The remaining capacity is calculated, and the remaining battery capacity is displayed on the liquid crystal display device 57. When the remaining battery capacity is almost exhausted, the liquid crystal display device 57 indicates that the battery capacity is exhausted.

The access between the control circuit 67 and the non-contact IC card C is performed by navigating the operation by the liquid crystal display device 57 and the access content selected by the key input device 58 with the access content stored in the ROM in the control circuit 67. By referring to the database of the control commands, the command data actually transmitted to the non-contact IC card C is obtained, and the command data transmitted to the non-contact IC card C is
The signal is transmitted to the non-contact IC card C via the ASK modulation circuit 60, the driver 61, and the coil L1 via the input interface.

An oscillation circuit 59 generates a carrier wave of the ASK modulation circuit 60. Response data from the non-contact IC card C is received by the coil L1 and input to the control circuit 67 by the amplifier 66, the band-pass filter 65, and the FSK demodulation circuit 64. Upon receiving the response data, the control circuit 67 displays the response data on the liquid crystal display device 57. Thereafter, the user accesses the interactive non-contact IC card C via the key input device 58 and the liquid crystal display device 57. Also, when the user sets the switch S
By turning off W, access to the contactless IC card C can be terminated at any time. As the semiconductor switch 52, a general semiconductor switch element such as a power MOSFET or a bipolar transistor may be used.

When there is no new access request, 1 minute to 5 minutes
After the elapse of the access request waiting time of about one minute, the control circuit 26 reduces the processing capacity and the power consumption.
By setting the above access request waiting time of about 1 minute to 5 minutes, the data display time becomes longer, the convenience for the user increases, and when the data amount of the non-contact IC card C is small, it is used. When the user turns on the switch SW, the data of the non-contact IC card C is read all at once,
After storing in the RAM of the control circuit 67 and turning off the switch SW, the liquid crystal display device 57 and the key input device 58 are used,
The search and confirmation may be performed based on the data read in batch.

Depending on the characteristics of the thin-film solar cell 50, there is no possibility that an excessive charging current flows into the lithium secondary battery 54. In this case, the constant current circuit 51 may be omitted. Further, the block 68 receiving power supply by the switch SW configures a modulation method in accordance with the data modulation / demodulation method of the non-contact IC card C to be read, so that the block 68 having a different modulation method such as ASK, FSK, or PSK is used. The contact IC card C can be accessed. As the thin-film secondary battery 54, an electric double-layer capacitor or the like can be used in addition to the thin-film secondary battery 54.

The non-contact IC card reader 10
0 _5, as in the non-contact IC card reader 100 _4, may be its shape card shape.

FIG. 14A shows an embodiment of the present invention.
Contact IC card reader 100 ₆FIG.

[0095] FIG. 14 (2), in the non-contact IC card reader 100 ₆ illustrates an implementation of a switch SW1, SW2.

Non-contact IC card reader 100
₆ is a non-contact IC card reader 100 ₃ , 100
₅ , the switch SW includes switches SW1 and SW2 connected in series to each other. By setting the switches SW1 and SW2 at two places where the thumb and the index finger are applied, the user can operate with one hand H. Also, mechanically movable parts of switches SW1, SW2 are placed in the concave than at least the non-contact IC card reader 100 ₆ cases plane. Reading is started only when both switches SW1 and SW2 are turned on.

By doing so, a non-contact IC
When the card reading device 100 ₆ is stored in a bag or a card case, even if one of the switches SW1 and SW2 receives pressure, the reading operation does not start unintentionally and malfunction is reliably prevented. be able to.

In the above embodiment, the power generating means may be installed outside the non-contact IC card reader and cut off when power is not supplied.

[0099] FIG. 15 (1) is a block diagram illustrating a contactless IC card reader 100 ₇ which is the sixth reference example, FIG. 15 (2), the non-contact IC which is the seventh reference example
It is a block diagram showing a card reader 100 _8.

The non-contact IC card reader 100 ₇ ,
In 100 _8, as a generator unit, using the commercial power supply and AC adapter.

FIG. 16 (1) is a block diagram showing a non-contact IC card reader 1009 according to an eighth embodiment, and FIG. 16 (2) is a non-contact IC card reader according to a _ninth embodiment.
It is a block diagram showing a card reader 100 _10.

The non-contact IC card reader 100 ₉ ,
In 100 _10, as the power storage unit, using the storage means 5 such as a primary battery.

In the above embodiment, the provision of the power control means enables the information transmission means, the information selection means, the control means, and the reading mechanism to operate only when the non-contact IC card C is accessed. When the IC card C is not accessed, the power consumption is reduced by stopping the supply of the electric energy to the above-described units.

[0104]

According to the present invention, a non-contact IC capable of visually recognizing invisible information contained in a non-contact IC card.
In the C card reader, there is an effect that the power consumption is small. Furthermore, the failure of the thin film secondary battery can be prevented, the life of the thin film secondary battery can be extended, and the portable non-contact type reading device can be used for a long time. It has the effect of being able to.

[Brief description of the drawings]

1 is a block diagram showing the overall circuit configuration of the non-contact IC card reader 100 ₁ which is the first reference example.

2 is a block diagram showing a configuration example of a reading mechanism 11 in the contactless IC card reader 100 _1.

FIG. 3 is a block diagram showing a general configuration example of a non-contact IC card C;

4 is a diagram showing a circuit configuration of the control means 10 in the non-contact IC card reader 100 _1.

FIG. 5 is a flowchart showing an overall general operation of the control means 10;

6 is a flowchart showing the operation of the contactless IC card reader 100 _1.

FIG. 7 is a flowchart showing a read mode operation (S40) in the control means 10.

FIG. 8 is a flowchart showing a sleep mode operation (S60) in the control means 10.

9 is a block diagram illustrating a contactless IC card reader 100 ₂ which is the second reference example.

10 is a block diagram illustrating a contactless IC card reader 100 ₃ which is a third reference example.

11 is a diagram showing an example of the installation position of the switch SW provided in the contactless IC card reader 100 _3.

[12] The contactless IC card reader 100 ₄ which is a fourth reference example, is a cross-sectional view taken in the longitudinal direction thereof.

13 is a block diagram illustrating a contactless IC card reader 100 ₅ which is the fifth reference example.

14 is a diagram showing a contactless IC card reader 100 ₆ which is an embodiment of the present invention.

FIG. 15 is a block diagram showing contactless IC card readers 100 ₇ and 100 ₈ as sixth and seventh reference examples.

FIG. 16 is a block diagram showing non-contact IC card readers 100 ₉ and 100 ₁₀ as eighth and ninth reference examples.

FIG. 17 shows a conventional non-contact IC card reader / writer 100.
FIG.

[Explanation of symbols]

100 _{1 to} 100 ₁₀ : Non-contact IC card reader, 2: Power supply block, 3: Power generation means, 5: Power storage means, 6: Power control means, 7: Power supply block, 8: Information calculator means, 9 ... Information selection means, 10 Control means, 11 Reading mechanism, L1, L2 Coil, C Contactless IC card, SW, SW1, SW2 Switch, SF2, SF3 Side.

Claims (1)

[Claims] 1. The power and data of a contactless IC card are
A portable non-contact IC card reader having a card shape which is supplied by electromagnetic waves and reads response data from the non-contact IC card in a non-contact manner, comprising: a thin-film secondary battery for storing electric energy; A protection means for the thin-film secondary battery, which provides an appropriate charging current and charging voltage depending on the power storage mechanism of the thin-film secondary battery and prevents irreversible deterioration of the thin-film secondary battery due to overcharge and overdischarge; Information transmission means for receiving and perceiving the information; and information selection means for receiving a perception request issued by the user and communicating perception request information issued by the user to the control means;
A reading mechanism for sending a read command to the non-contact IC card and receiving data from the non-contact IC card; and the control means for controlling at least one of the information transmitting means, the information selecting means, and the reading mechanism. And power control means for supplying power to at least one of the information transmission means, the information selection means, the reading mechanism, and the control means only when accessing the non-contact IC card. The control means checks the amount of power stored in the thin-film secondary battery,
The information transmitting means has a function of notifying the battery running out when there is no remaining battery level enough to perform the reading operation. The power control means is provided with a malfunction preventing means. The contact IC card reader is installed at two places on the side where the thumb and forefinger hit, and the mechanically movable part is installed on the concave surface of the case of the non-contact IC card reader.
A non-contact IC card reader comprising two switches, wherein the two switches are connected in series, and starts reading only when both of the switches are turned on.