JP3134561B2 - Battery pack integrated IC card reader / writer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack-integrated IC card reader / writer in which an IC card reader / writer is integrated with a battery pack detachably mounted on a portable electronic device body.

[0002]

2. Description of the Related Art For example, a portable electronic device such as a cellular phone or a video camera has a battery pack detachably mounted as a power source. These portable electronic devices require the battery pack to be removed and recharged once the battery pack is fully charged, so use as little power as possible.
It is an important technical issue in recent years to extend the life of a battery and extend the use time of a portable electronic device.

[0003]

SUMMARY OF THE INVENTION The present inventor has attempted to pioneer a new use method not available in conventional portable electronic devices by combining an IC card with the portable electronic device. For example, in recent years, mobile phones whose use has been dramatically increased can be used only for personal use, but if they can be used for public use, the range of use of mobile phones will be expanded. The inventor has proposed that as a means of publicizing a mobile phone,
It is thought that an IC card should be used and this IC card should have the same function as a telephone card. Since the storage capacity of this IC card is much larger than that of a magnetic card, a new usage method that cannot be considered in the past can be made possible by using the storage data of this IC card.

In this case, in order to read and write data stored in the IC card, it is necessary to attach an IC card reader / writer to the mobile phone. However, if the mobile phone itself has a built-in IC card reader / writer, the mobile phone can be used. As in the prior art, there is a disadvantage that the price of the mobile phone itself becomes high for a user who only uses it for an individual (a user who does not need an IC card reader / writer). In addition, even when the operation of the IC card reader / writer is unnecessary, the power is always supplied from the battery to the IC card reader / writer, so that the power consumption is increased and the battery is quickly consumed. However, there is a disadvantage that the use time of the mobile phone is shortened.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to enable an IC card reader / writer to be mounted on a portable electronic device main body by a user's selection, and to provide a portable electronic device. The battery pack and IC card reader / writer can be attached to the main unit with one touch operation, which is excellent in price, handling, portability (compactness), low power consumption, and battery life. It is an object of the present invention to provide a battery pack integrated type IC card reader / writer which can be operated.

[0006]

In order to achieve the above object, an IC card reader / writer integrated with a battery pack according to the present invention is detachably mounted on a main body of a portable electronic device, and a power supply for the main body of the portable electronic device is provided. A battery pack having a built-in battery, and an IC provided integrally with the battery pack and receiving power from the battery.
A C card reader / writer, wherein the IC card reader / writer is provided with power supply control means for controlling power supply from the battery to the IC card reader / writer by a control signal output from the portable electronic device main body. It is what it was.

[0007]

According to the above configuration, the IC card reader / writer is integrated with the battery pack. Therefore, when an IC card reader / writer is used, the battery pack-integrated IC card reader / writer may be attached to the main body of the portable electronic device. What is necessary is just to attach a battery pack similar to the conventional one without a writer to the portable electronic device body. In this case, since the IC card reader / writer is integrated with the battery pack, the work of attaching the battery pack and the IC card reader / writer to the portable electronic device main body can be performed together with one touch. Further, the power supply control means provided in the IC card reader / writer controls the power supply from the battery to the IC card reader / writer in accordance with the control signal output from the portable electronic device main body. When the operation is unnecessary, the power supply from the battery to the IC card reader / writer can be cut off or set to a low power consumption state, and the battery can be used for a long time.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment in which the present invention is applied to a portable telephone will be described below with reference to the reference numerals in the drawings. As shown in FIG. 2, a power switch 11 and a push-button dial key 1 are provided on a mobile phone main body 10 as a mobile electronic device main body.
2, a display unit 13, an antenna 14, and the like. A speaker and a microphone (both not shown) for a telephone call are built in the upper part and the lower part of the mobile phone body 10, respectively. Further, a battery pack-integrated IC card reader / writer 17 in which a battery pack 15 and an IC card reader / writer 16 are integrated is detachably mounted on the back side of the mobile phone body 10. As shown in FIG. 1, the battery pack 15 contains a battery 18 composed of a secondary battery and a battery charging circuit 19, and the battery charging circuit 19 is connected to an external power supply for charging (not shown). A charging power supply terminal 20 and a battery temperature detection terminal 21 for detecting the temperature of the battery 18 for preventing overcurrent during rapid charging are provided.

On the other hand, the IC card reader / writer 16
A card insertion slot 23 (see FIG. 3) into which the IC card 22 is inserted is formed. This IC card reader / writer 1
6 includes a CPU 24 and an IC card 22 as shown in FIG.
Card power supply circuit 25 for supplying power to CPU, CPU
An IC card interface 26 for transferring data between the IC card 22 and the IC card 22, an IC card insertion detection switch 27 for detecting whether or not the IC card 22 is correctly inserted, and a power supply voltage monitoring circuit for monitoring a decrease in power supply voltage 28, a main body interface 29 for transferring data between the CPU 24 and the mobile phone main body 10 is provided. The main body side interface 29 is provided with two transmission / reception terminals RxD and TxD for transmitting / receiving data to / from the mobile phone main body 10.

The output of the battery 18 is supplied to a battery terminal BATT provided on the battery pack 15.
(+), BATT (−), and are supplied to the mobile phone
It is also supplied to the C card reader / writer 16. The power supply control switch 30 constitutes power supply control means together with a control terminal CNT provided on the IC card reader / writer 16, and includes a power on / off signal (high level signal / high level signal) which is a control signal output from the mobile phone body 10. The power supply from the battery 18 to the IC card reader / writer 16 is controlled by inputting a low-level signal to the control terminal CNT and turning on / off the power supply control switch 30.

The flow of control of the entire operation of the mobile phone constructed as described above will be described with reference to the flowcharts of FIGS. When the power switch 11 of the mobile phone body 10 is turned on, the process proceeds from step S1 to step S2, where the mobile phone body 10 is initialized. Next, a power-on signal (high-level signal) is transmitted from the mobile phone body 10 to the control terminal CNT of the IC card reader / writer 16 (step S3), and the power supply control switch 30 is turned on.
Is turned on, and power is supplied from the battery 18 to the IC card reader / writer 16 (step S4). After this, IC
After initializing the card reader / writer 16 (step S5), a status command is transmitted from the mobile phone body 10 to the IC card reader / writer 16 through the terminal RxD (step S6), and the IC card reader / writer 16 performs status check processing. (Step S7).

Thereafter, the return value data is transmitted from the IC card reader / writer 16 to the portable telephone body 10 through the terminal TxD (step S8), and it is checked whether the return value data is normal or abnormal (step S9). If the return data is abnormal, a message of "main unit is abnormal" is displayed on the display unit 13 (step S10), and the control terminal CNT of the IC card reader / writer 16 is transmitted from the mobile phone main unit 10.
(Step S61), the power supply control switch 30 is turned off, and the power supply from the battery 18 to the IC card reader / writer 16 is forcibly stopped (step S62). Then, the power switch 11 of the mobile phone body 10 is automatically turned off (step S63).

On the other hand, as a result of the data check in step S9, if the return value data is normal, step S1
1 and the read command from the mobile phone
The IC card 22 is transmitted to the C card reader / writer 16 and
Is read into the CPU 24 of the IC card reader / writer 16 (step S12). Thereafter, the return data is transmitted from the IC card reader / writer 16 to the mobile phone body 10 (step S13), and it is checked whether the return data is normal or abnormal (step S14). If the return value data is abnormal, a message "body is abnormal" is displayed on the display unit 13 (step S15), and the cellular phone main body 10 is displayed.
To the control terminal C of the IC card reader / writer 16
A power-off signal is transmitted to the NT (step S61), the power supply control switch 30 is turned off, the power supply from the battery 18 to the IC card reader / writer 16 is forcibly stopped (step S62), and the mobile phone body 10 is automatically turned off (step S
63).

On the other hand, as a result of the data check in step S14, if the return data is normal,
The process proceeds to step S16, where it is determined whether the type of the IC card 22 is “credit card” or “prepaid card”. If the type is “credit card”, the process proceeds to step S17, and a message “credit card” is displayed on the display unit 13. It is displayed (step S17).

In this state, when the user operates the dial key 12 to input a telephone number (step S18), the portable telephone body 10 automatically calls the host computer (not shown) of the credit company, Connect to the host computer (step S19). Thereafter, when the user operates the dial key 12 to input a password (step S20), the mobile phone body 10 transmits the ID code and the password to the host computer (step S21).
The host computer checks the ID code and the password (step S22). Thereafter, return data is transmitted from the host computer to the mobile phone body 10 (step S23), and the return data is checked to determine whether or not the password is incorrect (step S24).

If the password is incorrect, the process goes to step S25 to determine whether the password is incorrect three times or less. If not, a message prompting the input of the password is displayed on the display unit 13. (Step S26), and returns to Step S20 described above. Thereafter, if the password is incorrect more than three times, the process proceeds from step S25 to step S27, in which a message of "data is abnormal" is displayed, and the lock command is transmitted from the mobile phone body 10 to the IC card reader / writer 16. (Step S28), IC card 2
To prevent unauthorized use (step S)
At the same time, the return data is transmitted from the IC card reader / writer 16 to the mobile phone body 10 (step S3).
0). As a result, a power-off signal is transmitted from the mobile phone body 10 to the control terminal CNT of the IC card reader / writer 16 (step S61), the power supply control switch 30 is turned off, and the power from the battery 18 to the IC card reader / writer 16 is transmitted. The supply is forcibly stopped (step S62), and the power switch 11 of the mobile phone body 10 is turned off.
Is automatically turned off (step S63).

On the other hand, as a result of the data check in step S24, if the password is correct, the process proceeds to step S31.
Then, a call is made to the telephone number entered in step S18. When the call is connected, the usage count is counted up (step S32), and the usage count is displayed on the display unit 13 (step S33). During a call, as long as the IC card 22 is inserted, the count-up of the number of uses and the display thereof are repeated (steps S34 and S35). If the IC card 22 is removed during the call, the process proceeds from step S34 to step S36 to display a message of "IC card forced ejection" on the display unit 13 and to forcibly end the call ( Step S37). Thereafter, the IC card reader / writer 1 is
A power off signal is transmitted to the control terminal CNT 6 (step S61), the power supply control switch 30 is turned off, and the power supply from the battery 18 to the IC card reader / writer 16 is forcibly stopped (step S62). Then, the power switch 11 of the mobile phone body 10 is automatically turned off (step S63).

On the other hand, if the call is ended with the IC card 22 inserted, the process goes from step S35 to step S38.
And waits until the power switch 11 is turned off. Thereafter, when the power switch 11 is turned off, a power-off signal is transmitted from the mobile phone body 10 to the control terminal CNT of the IC card reader / writer 16 (step S).
61) After the power supply control switch 30 is turned off and the power supply from the battery 18 to the IC card reader / writer 16 is forcibly stopped (step S62), the power switch 11 of the mobile phone body 10 is automatically returned to off. (Step S63).

In step S16, the IC card 2
If it is determined that the two types are "prepaid cards", the process proceeds to step S41, and the display unit 13 displays a "prepaid card" message and the remaining frequency. In this state,
When the user operates the dial key 12 and inputs a telephone number (step S42), the telephone number is called (step S43). When the call is connected, the remaining frequency is counted down (step S44), and the remaining frequency is displayed on the display unit 13 (step S45). Thereafter, a write command is transmitted from the mobile phone body 10 to the IC card reader / writer 16 (step S46), and data of the remaining frequency is written to the IC card 22 (step S47).
The return data is transmitted from the IC card reader / writer 16 to the mobile phone body 10 (step S48), and it is checked whether the return data is normal or abnormal (step S49). If the return data is abnormal, a message indicating "data is abnormal" is displayed on the display unit 13 (step S50), and the call is forcibly terminated (step S51). After this,
A power-off signal is transmitted from the mobile phone body 10 to the control terminal CNT of the IC card reader / writer 16 (step S61), the power supply control switch 30 is turned off, and the power supply from the battery 18 to the IC card reader / writer 16 is forced. (Step S62), and the power switch 11 of the mobile phone body 10 is automatically turned off (Step S63).

On the other hand, as a result of the data check in step S49, if the return data is normal, during the call,
As long as the IC card 22 is inserted, the above-described processes of counting down the remaining frequency and writing the data of the remaining frequency to the IC card 22 are repeated (steps S52 and S53). If the IC card 22 is removed during the call, the process proceeds from step S52 to step S54, and a message "IC card forced ejection" is displayed on the display unit 1.
3 and the call is forcibly terminated (step S55). Thereafter, a power-off signal is transmitted from the mobile phone body 10 to the control terminal CNT of the IC card reader / writer 16 (step S61), the power supply control switch 30 is turned off, and the power from the battery 18 to the IC card reader / writer 16 is turned off. The supply is forcibly stopped (step S62), and the power switch 11 of the mobile phone body 10 is automatically turned off (step S63).

On the other hand, if the call is terminated in a state where the IC card 22 is inserted, steps S53 to S56
And waits until the power switch 11 is turned off. Thereafter, when the power switch 11 is turned off, a power-off signal is transmitted from the mobile phone body 10 to the control terminal CNT of the IC card reader / writer 16 (step S).
61) After the power supply control switch 30 is turned off and the power supply from the battery 18 to the IC card reader / writer 16 is forcibly stopped (step S62), the power switch 11 of the mobile phone body 10 is automatically returned to off. (Step S63).

Next, the CP of the IC card reader / writer 16
The control performed by U24 will be described with reference to the flowchart of FIG. When a power-on signal is input to the control terminal CNT and the power supply control switch 30 is turned on (step S71), power is supplied from the battery 18 to the IC card reader / writer 16, but at this stage, power is supplied to the IC card 22. The power supply is cut to maintain the low power consumption state (step S72). In this state, the mobile phone body 10
It is determined whether the data reception from the server is valid or invalid (step S
73) Stand by in a low power consumption state until data reception becomes valid.

Thereafter, if the data reception from the mobile phone main unit 10 becomes valid, the flow shifts to step S74, where the command type is "read command", "write command", and other commands (hereinafter referred to as "other commands"). ) Is determined. In the case of a "read command", the flow shifts to step S75 to supply power to the IC card 22 through the IC card power supply circuit 25 and reset the IC card 22 (step S76). Then I
Open the file on the C card 22 (step S77),
After reading data from the IC card 22 (step S
78), the power supply to the IC card 22 is cut off (step S79), the data is transmitted to the mobile phone body 10 (step S80), and the process returns to step S72.

On the other hand, if it is determined in step S74 that the command is a "write command", the flow shifts to step S81 to supply power to the IC card 22 and
2 is reset (step S82). Next, the file of the IC card 22 is opened (step S83), and the IC card 22 is opened.
After writing data to the card 22 (step S8
4) The power supply to the IC card 22 is cut off (step S85), the data is transmitted to the mobile phone body 10 (step S80), and the process returns to step S72.

If it is determined in step S74 that the command is "another command", the process proceeds to step S86 to supply power to the IC card 22,
After performing a process corresponding to another command (step S87), the power supply to the IC card 22 is cut off (step S88), and data is transmitted to the mobile phone body 10 (step S80), and step S72 is performed. Return to

According to the present embodiment described above, since the IC card reader / writer 16 is integrated with the battery pack 15, when the IC card reader / writer 16 is used, the battery pack integrated type IC card reader is used. The writer 17 may be attached to the mobile phone main body 10. On the other hand, if the IC card reader / writer 16 is unnecessary,
If a conventional battery pack without a C card reader / writer is attached to the mobile phone main body 10, the same mobile phone as the conventional one can be used.
0 can be used for multiple purposes, and the range of use of mobile phones can be expanded. In this case, there is no need to incorporate the IC card reader / writer 16 into the mobile phone body 10, so that the mobile phone body 10 can be shared with a conventional mobile phone that does not require the IC card reader / writer 16, and It is also possible to reduce the manufacturing cost of the ten.

Moreover, since the IC card reader / writer 16 is integrated with the battery pack 15, the work of mounting the battery pack 15 and the IC card reader / writer 16 on the portable telephone body 10 can be performed together with one touch. In addition to excellent handling, it is also excellent in portability (compactness).

Further, a control terminal CNT and a power supply control switch 30 are provided in the IC card reader / writer 16, and power is supplied from the battery pack 15 to the IC card reader / writer 16 by a power on / off signal output from the mobile phone body 10. Therefore, when the operation of the IC card reader / writer 16 is unnecessary, the power supply from the battery 18 to the IC card reader / writer 16 can be cut off or set to a low power consumption state. For this reason, the power consumption of the IC card reader / writer 16 can be reduced, the battery 18 can last longer, and the use time of the mobile phone body 10 can be extended.

Further, in the present embodiment, the CPU 24 of the IC card reader / writer 16 supplies power to the IC card 22 only when access to the IC card 22 is necessary.
When the access to the IC card 22 is unnecessary, the power supply to the IC card 22 is controlled to be cut off, so that there is an advantage that the power consumption of the IC card reader / writer 16 can be further reduced.

In this embodiment, the present invention is applied to a portable telephone. In addition to the portable telephone, various portable telephones such as a portable fax machine, a video camera, a pager, a notebook personal computer, and an electronic organizer can be used. Needless to say, the present invention can be applied to electronic equipment for use.

In the present embodiment, the power on / off signal is input to the control terminal CNT in synchronization with the power on / off of the power switch 11 of the mobile phone body 10, so that the battery 18 is transmitted to the IC card reader / writer 16. However, if the present invention is applied to other portable electronic devices, even when the portable electronic device itself is powered on, if there is a case where the operation of the IC card reader / writer is unnecessary, At that time, it goes without saying that a power-off signal may be input from the main body of the portable electronic device to the control terminal CNT.

[0032]

As is apparent from the above description, according to the present invention, since the IC card reader / writer is integrated with the battery pack, the battery pack integrated type I is provided.
By selectively using a C card reader / writer and a conventional battery pack without an IC card reader / writer according to the user's choice, one portable electronic device body can be used for multiple purposes, and the use of the portable electronic device can be achieved. The range can be expanded, and the cost is more advantageous than the case where the IC card reader / writer is built in the portable electronic device body. In addition, the work of attaching the battery pack and the IC card reader / writer to the main body of the portable electronic device can be performed together with one touch, and the handleability is excellent and the portability (compactness) is excellent. .

Further, the power supply control means provided in the IC card reader / writer controls the power supply from the battery to the IC card reader / writer according to the control signal output from the portable electronic device main body. When the operation of the reader / writer is unnecessary, the power supply from the battery to the IC card reader / writer can be cut or set to a low power consumption state, the battery can be used for a long time, and the usage time of the portable electronic device can be prolonged. I can.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an electric configuration of a battery pack integrated type IC card reader / writer showing an embodiment of the present invention.

FIG. 2 is a perspective view of a mobile phone.

FIG. 3 is a perspective view showing a state where an IC card is extracted from an IC card reader / writer integrated with a battery pack.

FIG. 4 is a flowchart showing a flow of the entire operation of the mobile phone (part 1);

FIG. 5 is a flowchart showing a flow of the entire operation of the mobile phone (part 2);

FIG. 6 is a flowchart showing a flow of the entire operation of the mobile phone (part 3);

FIG. 7 is a flowchart showing a flow of the entire operation of the mobile phone (part 4);

FIG. 8 is a flowchart showing a flow of the entire operation of the mobile phone (part 5).

FIG. 9 is a flowchart showing control contents of an IC card reader / writer.

[Explanation of symbols]

10: Mobile phone body (portable electronic device body), 11: Power switch, 13: Display unit, 15: Battery pack,
16: IC card reader / writer, 17: battery pack integrated IC card reader / writer, 18: battery,
22: IC card, 30: power supply control switch (power supply control means), CNT: control terminal (power supply control means), RxD, TxD: transmission / reception terminal.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP 5-153217 (JP, A) JP 5-335993 (JP, A) JP 5-9057 (JP, U) JP 6 41247 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) G06K 17/00 H04M 1/00-1/253 H04M 1/58-1/62 H04M 1/66-1/82 H04B 7/06-7/38 H04Q 7/00-7/38

Claims (1)

(57) [Claims] 1. A battery pack which is detachably attached to a main body of a portable electronic device and has a built-in battery serving as a power supply of the main body of the portable electronic device. And an IC card reader / writer that receives the supply. The IC card reader / writer is connected to the IC card reader / writer by a control signal output from the main body of the portable electronic device.
An IC card reader / writer integrated with a battery pack, further comprising power supply control means for controlling power supply to a C card reader / writer.