JP2004048251A - Portable terminal apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal apparatus that can remarkably improve the communication performance between a non-contact type IC card and an automatic ticket inspection apparatus when passing through the automatic ticket gate, by using the portable terminal apparatus when mounting the non-contact type IC card used as a ticket to the portable terminal apparatus such as a cellular phone. <P>SOLUTION: When a non-contact type IC card function (the non-contact type IC card) used as the ticket is mounted to the portable terminal apparatus as the cellular phone for passing through the automatic ticket gate by using the portable terminal apparatus, a transmission carrier from the automatic ticket gate is detected before passing. As a result, a cellular phone function is temporarily interrupted (or stopped), and priority is given to the communication between the non-contact IC card function (non-contact IC card) and the automatic ticket apparatus. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile terminal device such as a mobile phone or a personal digital assistant (PDA) equipped with a contactless IC card function.
The present invention also relates to a portable terminal device such as a portable telephone or a portable information device equipped with a contactless IC card reader / writer function.
In addition, the present invention relates to a portable terminal device such as a portable telephone or a portable information device in which a non-contact type IC card is detachable.
[0002]
[Prior art]
Conventionally, for example, a portable terminal device such as a portable information device called a portable telephone or a PDA and a non-contact IC card (so-called wireless card) as a ticket for passing through an automatic ticket gate must be provided separately. In addition, the frequency of passing through an automatic ticket gate while using a mobile phone is increasing year by year.
[0003]
[Problems to be solved by the invention]
2. Description of the Related Art Conventionally, communication between a non-contact type IC card and an automatic ticket gate has performed data transmission and reception using radio waves having a frequency of 13.56 MHz. The communication between the mobile phone and the mobile phone base station uses radio waves having a frequency in the 800 MHz band or the 1.5 GHz band.
[0004]
When using a mobile phone, when passing through the automatic ticket gate, a non-contact IC card, which is possessed separately, was taken out and held over the automatic ticket gate to perform communication. (A harmonic from 1.5 GHz) is a band that is not necessary for communication between the contactless IC card and the automatic ticket gate. In addition, due to the influence of the unnecessary band radio wave, the contactless IC card and the automatic Communication performance with the ticket gate device may be significantly reduced.
Therefore, it is desirable not to generate or receive radio waves in unnecessary frequency bands when such a mobile terminal device is used, and priority must be given to communication between the non-contact type IC card and the automatic ticket gate.
[0005]
Therefore, the present invention provides, for example, when a non-contact type IC card as a ticket is mounted on a mobile terminal device such as a mobile phone, the mobile terminal function temporarily stops when passing through the automatic ticket gate when using the mobile terminal device. To provide a portable terminal device capable of remarkably improving the communication performance between a non-contact type IC card and an automatic ticket gate by suspending or stopping and giving priority to communication between the non-contact type IC card and the automatic ticket gate. Aim.
[0006]
[Means for Solving the Problems]
The portable terminal device according to the present invention includes a portable terminal function unit that performs predetermined information processing by performing wireless communication with a first external device by using radio waves of a first predetermined frequency band; Wireless communication using a radio wave of a second predetermined frequency band which is easily affected by the radio wave of the first predetermined frequency band with a second external device different from the first external device to obtain predetermined information. A non-contact IC card function unit for performing processing; a detecting unit for detecting that the portable terminal device has approached the second external device to a predetermined distance; When it is detected that the mobile terminal function unit has approached the external device to a predetermined distance, at least the wireless communication function of the mobile terminal function unit is interrupted at least temporarily, and the non-contact type IC card function unit and the second external device And a control means for prioritized communication.
[0007]
Further, the portable terminal device of the present invention includes a portable terminal function unit that performs predetermined information processing by performing wireless communication with a first external device using radio waves of a first predetermined frequency band; By performing radio communication with a second external device different from the first external device by using radio waves in a second predetermined frequency band that is easily affected by radio waves in the first predetermined frequency band, Non-contact IC card reader / writer for detachably setting a non-contact IC card for performing predetermined information processing and performing predetermined information processing by performing wireless communication with the set non-contact IC card A function unit, detecting means for detecting that the mobile terminal device has approached the second external device to a predetermined distance, and detecting the mobile terminal device with respect to the second external device by the detecting means. When it is detected that the mobile terminal function unit has approached the predetermined distance, at least a wireless communication function of the mobile terminal function unit is temporarily interrupted at least temporarily, and control means for giving priority to communication between the non-contact type IC card and a second external device is provided. I have it.
[0008]
Further, the portable terminal device of the present invention performs predetermined information processing by performing wireless communication with a first external device using radio waves of a first predetermined frequency band, and By performing wireless communication with a second external device different from the first external device using a radio wave of a second predetermined frequency band which is easily affected by the radio wave of the first predetermined frequency band, A portable terminal function unit to which a non-contact type IC card for performing information processing can be attached and detached, detection means for detecting that the portable terminal apparatus has approached the second external apparatus to a predetermined distance, and the detection means When it is detected that the mobile terminal device has approached the second external device to a predetermined distance, at least the wireless communication function of the mobile terminal function unit is temporarily interrupted at least temporarily, and the non-contact IC card Communication with the second external device and a control means for preferentially.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, a case will be described in which the present invention is applied to, for example, a mobile phone as a mobile terminal device.
First, a first embodiment will be described.
FIG. 1 schematically shows a configuration of the mobile terminal device according to the first embodiment. This portable terminal device roughly uses a radio wave having a frequency of 800 MHz band or 1.5 GHz band (a radio wave of a first predetermined frequency band) with a mobile phone base station A as a first external device. Between a mobile phone function unit (mobile terminal function unit) 11 that performs a call process and the like by performing wireless communication and a non-contact type IC card compatible automatic ticket gate B in a railway organization as a second external device. And a non-contact type IC card function unit 21 for transmitting and receiving ticket gate processing data by performing wireless communication using radio waves having a frequency of 13.56 MHz band (radio waves of a second predetermined frequency band). ing.
[0010]
The mobile phone function unit 11 controls an antenna 12 for transmitting and receiving data to and from the mobile phone base station A by wireless communication, modulates and demodulates transmitted and received data, displays various data, and controls sensors such as dial buttons. The unit 13 includes a CPU 14 that performs various data processing and overall control, a nonvolatile memory 15 such as an EEPROM that stores various data, and a battery 16 that supplies an operating voltage to each unit.
[0011]
The contactless IC card function unit 21 includes a transmission / reception antenna 22 for transmitting and receiving data to and from the automatic ticket gate B, a modulation / demodulation unit 23 for modulating transmission data and demodulating received data, various data processing, CPU 24 for overall control; nonvolatile memory 25 such as EEPROM for storing various data; DC stabilized by rectifying and smoothing the transmission carrier output from automatic ticket gate B received by transmission / reception antenna 22 A rectifier circuit 26 that generates a voltage and supplies it to each unit as an operating voltage; a DC voltage output from the rectifier circuit 26 is compared with a preset detection reference voltage; And a comparator 27 which sends the signal to the comparator 27.
[0012]
The battery 16 of the mobile phone function unit 11 supplies an operating voltage to the comparator 27 of the contactless IC card function unit 21. This is because the comparator 27 must always be activated in order to detect in advance the carrier transmitted from the automatic ticket gate B when passing through the automatic ticket gate B.
[0013]
The transmission / reception antenna 22 of the non-contact type IC card function unit 21 is mounted on, for example, an internal board of the portable terminal device or inside or near the portable terminal device body case. Further, the CPU 24 that controls the non-contact type IC card function unit 21 and the memory 25 that stores various data operate independently of the CPU 14 and the memory 15 of the mobile phone function unit 11.
[0014]
A pickup coil for detecting a transmission carrier output for performing wireless communication between the automatic ticket gate B and the contactless IC card function unit 21 is shared with the transmission / reception antenna 22 of the contactless IC card function unit 21. The transmission carrier signal induced by the transmission / reception antenna 22 is converted by the rectifier circuit 26 into a DC voltage. The converted DC voltage is used as a power supply voltage for operating the contactless IC card function unit 21. As described above, since the power supply voltage is generated from the carrier transmitted from the automatic ticket gate B, the use time of the battery 16 is saved.
[0015]
The DC voltage output from the rectifier circuit 26 is sent to the comparator 27. The comparator 27 compares the output voltage of the rectifier circuit 26 with a preset detection reference voltage, and generates a detection signal 28 when a DC voltage higher than the detection reference voltage is generated.
[0016]
That is, the comparator 27 constitutes detection means for detecting that the mobile terminal device has approached the automatic ticket gate B to a predetermined distance by detecting the transmission carrier from the automatic ticket gate B via the transmission / reception antenna 22. are doing.
[0017]
The detection signal 28 output from the comparator 27 is sent to the CPU 14 of the mobile phone function unit 11. Upon receiving the detection signal 28, the CPU 14 switches the operation program, thereby temporarily suspending (or stopping) the mobile phone function, and connects the non-contact type IC card function unit 21 and the automatic ticket gate B with each other. Prioritize communication.
[0018]
The detection reference voltage in the comparator 27 is sufficiently smaller than the power supply voltage at which the non-contact IC card function unit 21 starts operating, and can be detected immediately before the position where the transmission carrier of the automatic ticket gate B is fired. Before the non-contact IC card function unit 21 is activated, the transmission carrier is detected just before the position where the transmission carrier of the automatic ticket gate B is fired, and the mobile phone function is temporarily stopped. (Or stop). Therefore, the communication performance between the automatic ticket gate B and the non-contact IC card function unit 21 is significantly improved.
[0019]
Thus, a non-contact IC card function is mounted on a portable terminal device as a mobile phone, and the mobile phone function is temporarily interrupted when the non-contact IC card function is used. The information processed by the card function unit 21 with the automatic ticket gate B is transmitted to the upper-level device of the automatic ticket gate B by using the mobile phone function unit 11 except when the automatic ticket gate B is passed. It can be browsed by communicating with a host device via a network or the like.
[0020]
In the above description, the case where the transmission / reception antenna 22 of the non-contact type IC card function unit 21 is shared as the pickup coil for detecting the transmission carrier output from the automatic ticket gate B has been described. You may.
[0021]
Next, a second embodiment will be described.
FIG. 2 schematically shows a configuration of the mobile terminal device according to the second embodiment. In the portable terminal device according to the first embodiment, the CPU 24 and the memory 25 of the non-contact IC card function unit 21 are shared with the CPU 14 and the memory 15 of the mobile phone function unit 11, and the CPU 34 and the memory 35 The other parts are the same as those of the above-described first embodiment (FIG. 1), and thus the same parts are denoted by the same reference numerals and description thereof will be omitted.
[0022]
The CPU 34 and the memory 35 are shared by the non-contact IC card function unit 21 and the mobile phone function unit 11 as described above, and all power supply voltages for driving are supplied from the battery 16 of the mobile phone function unit 11. .
[0023]
The detection reference voltage in the comparator 27 is set to a voltage that can be detected just before the position where the transmission carrier of the automatic ticket gate B is fired. This is because the non-contact type IC card function unit 21 is operated by the battery 16 of the mobile phone function unit 11 and is always activated.
[0024]
Thus, a non-contact IC card function is mounted on a portable terminal device as a mobile phone, and when the non-contact IC card function is used, the mobile phone function is temporarily interrupted. The communication between the unit 21 and the mobile phone function unit 11 can be performed inside the mobile terminal device, and the information processed between the automatic ticket gate B and the non-contact IC card function unit 21 Can be browsed by the mobile phone function unit 11.
[0025]
Next, a third embodiment will be described.
FIG. 3 schematically shows a configuration of the mobile terminal device according to the third embodiment. The same parts as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Only different parts will be described in detail.
[0026]
In FIG. 3, the mobile terminal device is roughly divided into a mobile phone function unit 11 having the same configuration as that of the first embodiment and a non-contact IC card reader / writer function unit 41. The non-contact IC card reader / writer function unit 41 communicates with a non-contact type IC card compatible automatic ticket gate B in a railway organization as a second external device by a radio wave having a frequency of 13.56 MHz (second predetermined frequency). A non-contact type IC card 51 for transmitting and receiving ticket processing data by performing wireless communication using frequency band radio waves) is detachably set.
[0027]
The non-contact IC card reader / writer function unit 41 includes a transmission / reception antenna 42 for transmitting and receiving data to and from the non-contact type IC card 51, a transmission / reception unit 43 for controlling data transmission / reception, modulating transmission data, A demodulation unit 44 for demodulating the data, a CPU 14 for various data processing and overall control, a non-volatile memory 15 such as an EEPROM for storing various data, and a transmission output from the automatic ticket gate B received by the transmission / reception antenna 42 A rectifier circuit 45 that generates and outputs a DC voltage by rectifying and smoothing the carrier, and compares the DC voltage output from the rectifier circuit 45 with a preset detection reference voltage, and sends the comparison result to the CPU 14. It comprises a comparator 47.
[0028]
The battery 16 of the mobile phone function unit 11 supplies an operating voltage to each unit of the non-contact type IC card reader / writer function unit 41. The transmission / reception antenna 42 of the non-contact type IC card reader / writer function unit 41 is mounted, for example, on the internal board of the portable terminal device or inside or near the portable terminal device body case.
[0029]
The CPU 34 and the memory 35 are shared by the non-contact IC card function unit 21 and the mobile phone function unit 11 as described above, and all power supply voltages for driving are supplied from the battery 16 of the mobile phone function unit 11. .
[0030]
As shown in FIG. 4, the non-contact IC card 51 has basically the same configuration as the non-contact IC card function unit 21 described above. That is, the non-contact type IC card 51 includes a transmission / reception antenna 52 for transmitting and receiving data to and from the non-contact type IC card reader / writer function unit 41, and a modulation / demodulation unit for modulating transmission data and demodulating received data. 53, a CPU 54 for performing various data processing and overall control, a non-volatile memory 55 such as an EEPROM for storing various data, and rectifying and smoothing a power wave received from the transmission / reception antenna 22 and output from the automatic ticket gate B. Thus, the power supply generating unit 56 generates a stabilized DC voltage and supplies the DC voltage as an operating voltage to each unit.
[0031]
A pickup coil for detecting a transmission carrier output for performing wireless communication between the automatic ticket gate B and the non-contact type IC card 51 is shared with the transmission / reception antenna 42 of the non-contact type IC card reader / writer function unit 41. The transmission carrier signal induced by the transmission / reception antenna 42 is converted into a DC voltage by the rectifier circuit 45. The converted DC voltage is sent to the comparator 46. The comparator 46 compares the output voltage of the rectifier circuit 45 with a preset detection reference voltage, and generates a detection signal 47 when a DC voltage higher than the detection reference voltage is generated.
[0032]
That is, the comparator 46 constitutes detection means for detecting that the mobile terminal device has approached the automatic ticket gate B to a predetermined distance by detecting the transmission carrier from the automatic ticket gate B via the transmission / reception antenna 42. are doing.
[0033]
The detection signal 47 output from the comparator 46 is sent to the CPU 14. Upon receiving the detection signal 47, the CPU 14 switches the operation program, thereby temporarily suspending (or stopping) the cellular phone function, and performs communication between the non-contact type IC card 51 and the automatic ticket gate B. Prioritize.
[0034]
By setting the detection reference voltage in the comparator 46 to a value sufficiently smaller than the power supply voltage at which the non-contact IC card 51 starts operating, the transmission carrier is detected before the non-contact IC card 51 is activated. The mobile phone function can be temporarily suspended (or stopped). Therefore, the communication performance between the automatic ticket gate B and the non-contact type IC card 51 is significantly improved.
[0035]
As described above, the non-contact type IC card reader / writer function is mounted on the mobile terminal device as the mobile phone, and when the non-contact type IC card 51 is used, the mobile phone function is temporarily interrupted. Communication with the contact type IC card 51 is performed in a non-contact manner on the portable terminal device, and information processed with the automatic ticket gate B by the non-contact type IC card 51 is a non-contact type. By communicating with the non-contact type IC card 51 by the type IC card reader / writer function unit 41, the mobile phone function unit 11 can browse. Further, communication between the non-contact type IC card 51 and the non-contact type IC card reader / writer function section 41 is not performed when passing through the automatic ticket gate B.
[0036]
In the above description, the case where the transmission / reception antenna 42 of the non-contact type IC card reader / writer function unit 41 is shared as the pickup coil for detecting the transmission carrier output from the automatic ticket gate B has been described. May be provided.
[0037]
Next, a fourth embodiment will be described.
FIG. 5 schematically shows a configuration of a mobile terminal device according to the fourth embodiment. It is to be noted that the same parts as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described in detail.
[0038]
In FIG. 5, the mobile terminal device is roughly divided into a mobile phone function unit 11 having a configuration similar to that of the first embodiment, a pickup coil 61 for detecting a transmission carrier output from the automatic ticket gate B, A rectifier circuit 62 that generates and outputs a DC voltage by rectifying and smoothing a transmission carrier received by the pickup coil 61, and comparing the DC voltage output from the rectifier circuit 62 with a preset detection reference voltage, It comprises a comparator 63 for sending the comparison result to the CPU 14.
[0039]
The battery 16 of the mobile phone function unit 11 supplies an operating voltage to the comparator 63 as well. This is because the comparator 63 must always be activated in order to detect in advance the carrier transmitted from the automatic ticket gate B when passing through the automatic ticket gate B. The non-contact type IC card 51 is detachable from, for example, the inside or outside of the portable terminal device.
[0040]
The pickup coil 61 is mounted, for example, on the internal substrate of the portable terminal device or inside or near the portable terminal device body case. The pickup coil 61 is tuned to a frequency equivalent to the carrier transmitted from the automatic ticket gate B. The transmission carrier signal induced in the pickup coil 61 is converted into a DC voltage by the rectifier circuit 62. The converted DC voltage is sent to the comparator 63. The comparator 63 compares the output voltage of the rectifier circuit 62 with a preset detection reference voltage, and generates a detection signal 64 when a DC voltage higher than the detection reference voltage is generated.
[0041]
That is, the comparator 63 constitutes detection means for detecting that the mobile terminal device has approached the automatic ticket gate B to a predetermined distance by detecting the transmission carrier from the automatic ticket gate B through the pickup coil 61. are doing.
[0042]
The detection signal 64 output from the comparator 63 is sent to the CPU 14. When receiving the detection signal 64, the CPU 14 switches the operation program, thereby temporarily suspending (or stopping) the mobile phone function, and performs communication between the non-contact type IC card 51 and the automatic ticket gate B. Prioritize.
[0043]
By setting the detection reference voltage in the comparator 63 to a value sufficiently smaller than the power supply voltage at which the non-contact IC card 51 starts operating, the transmission carrier is detected before the non-contact IC card 51 is activated. The mobile phone function can be temporarily suspended (or stopped). Therefore, the communication performance between the automatic ticket gate B and the non-contact type IC card 51 is significantly improved.
[0044]
As described above, the non-contact type IC card is made detachable from the mobile terminal device as the mobile phone, and the mobile phone function is temporarily interrupted when the non-contact type IC card 51 is used. The unit 11 does not communicate with the non-contact type IC card 51.
[0045]
As described above, according to the above-described embodiment, when a non-contact type IC card function (non-contact type IC card) is mounted on a mobile terminal device as a mobile phone, when the mobile terminal device passes through an automatic ticket gate, The mobile phone function is temporarily suspended (or stopped) by detecting the transmission carrier from the automatic ticket gate just before passing, and the communication between the non-contact IC card function (non-contact IC card) and the automatic ticket gate is performed. Priority, the unnecessary frequency band (800 M or harmonics from 1.5 GHz) when using the portable terminal device can be prevented from being generated or received, and the non-contact IC card function (non-contact IC card) The communication performance between the card and the automatic ticket gate can be significantly improved.
[0046]
In the above-described embodiment, a case has been described in which the present invention is applied to a mobile phone as a mobile terminal device. However, the present invention is not limited to this. For example, a mobile phone function or a wireless communication function equivalent to a mobile phone is provided. The present invention can be similarly applied to a portable information device called a PDA.
[0047]
Further, the first external device is not limited to the mobile phone base station, and may be another device having an equivalent wireless communication function. Further, the second external device is not limited to an automatic ticket gate device compatible with a non-contact IC card, but may be, for example, a personal computer compatible with a non-contact IC card.
[0048]
【The invention's effect】
As described above in detail, according to the present invention, for example, when a non-contact type IC card as a ticket is mounted on a portable terminal device such as a portable telephone, when the portable terminal device is used and passes through an automatic ticket gate. A mobile terminal capable of remarkably improving the communication performance between a non-contact type IC card and an automatic ticket gate by temporarily suspending or stopping a mobile terminal function and giving priority to communication between the non-contact type IC card and the automatic ticket gate. Equipment can be provided.
[Brief description of the drawings]
FIG. 1 is a block diagram schematically showing a configuration of a portable terminal device according to a first embodiment of the present invention.
FIG. 2 is a block diagram schematically showing a configuration of a mobile terminal device according to a second embodiment of the present invention.
FIG. 3 is a block diagram schematically showing a configuration of a portable terminal device according to a third embodiment of the present invention.
FIG. 4 is a block diagram schematically showing a configuration of a non-contact type IC card.
FIG. 5 is a block diagram schematically showing a configuration of a portable terminal device according to a fourth embodiment of the present invention.
[Explanation of symbols]
A: mobile phone base station (first external device), B: automatic ticket gate (second external device), 11: mobile phone function unit (mobile terminal function unit), 12: antenna, 13: control unit, 14 , 34 CPU, 15, 35 memory, 16 battery, 21 contactless IC card function unit, 22, 42 transmission / reception antenna, 23, 44 modulation / demodulation unit, 24 CPU, 25 memory, 26, 45 , 62 rectifier circuit, 27, 46, 63 comparator, 41 contactless IC card reader / writer function unit, 43 transmitter / receiver unit, 51 contactless IC card, 61 pickup coil.

Claims (10)

A mobile terminal function unit that performs predetermined information processing by performing wireless communication with a first external device using radio waves of a first predetermined frequency band;
By performing wireless communication between the first external device and a second external device different from the first external device using a radio wave of a second predetermined frequency band which is easily affected by the radio wave of the first predetermined frequency band, A contactless IC card function unit for performing predetermined information processing;
Detecting means for detecting that the portable terminal device has approached the second external device to a predetermined distance;
When the detecting means detects that the mobile terminal device has approached the second external device to a predetermined distance, at least the wireless communication function of the mobile terminal function unit is interrupted at least temporarily, and the non-contact IC Control means for prioritizing communication between the card function unit and the second external device;
A portable terminal device comprising: The non-contact IC card function unit has an antenna for performing wireless communication with the second external device,
The detection unit detects a transmission carrier output for performing wireless communication with the non-contact IC card function unit from the second external device using the antenna, and thereby detects the mobile terminal. The portable terminal device according to claim 1, wherein the portable terminal device detects that the device has approached the second external device to a predetermined distance. The detection means has a pickup coil for detecting a transmission carrier output for performing wireless communication with the non-contact type IC card function unit from the second external device. The mobile terminal device according to claim 1, wherein the mobile terminal device detects that the mobile terminal device has approached the second external device to a predetermined distance by detecting the transmission carrier. The portable terminal function unit and the non-contact type IC card function unit can exchange information with each other, and the information obtained by the non-contact type IC card function unit can be browsed by the portable terminal function unit. The mobile terminal device according to claim 1, wherein: A mobile terminal function unit that performs predetermined information processing by performing wireless communication with a first external device using radio waves of a first predetermined frequency band;
By performing wireless communication between the first external device and a second external device different from the first external device using a radio wave of a second predetermined frequency band which is easily affected by the radio wave of the first predetermined frequency band, A non-contact type IC card reader for performing predetermined information processing is set detachably, and wirelessly communicates with the set non-contact type IC card to perform predetermined information processing. Writer function section,
Detecting means for detecting that the portable terminal device has approached the second external device to a predetermined distance;
When the detecting means detects that the mobile terminal device has approached the second external device to a predetermined distance, at least the wireless communication function of the mobile terminal function unit is interrupted at least temporarily, and the non-contact IC Control means for prioritizing communication between the card and the second external device;
A portable terminal device comprising: The non-contact IC card reader / writer function unit has an antenna for performing wireless communication with the non-contact IC card,
The detection unit detects a transmission carrier output for performing wireless communication with the non-contact IC card function unit from the second external device using the antenna, and thereby detects the mobile terminal. The portable terminal device according to claim 5, wherein the portable terminal device detects that the device has approached the second external device to a predetermined distance. It performs predetermined information processing by performing wireless communication with a first external device using radio waves of a first predetermined frequency band, and a second information device different from the first external device. A non-contact IC card that performs predetermined information processing by performing wireless communication with an external device using radio waves in a second predetermined frequency band that is easily affected by the radio waves in the first predetermined frequency band has been developed. A removable mobile terminal function unit,
Detecting means for detecting that the portable terminal device has approached the second external device to a predetermined distance;
When the detecting means detects that the mobile terminal device has approached the second external device to a predetermined distance, at least the wireless communication function of the mobile terminal function unit is interrupted at least temporarily, and the non-contact IC Control means for prioritizing communication between the card and the second external device;
A portable terminal device comprising: The detection means has a pickup coil for detecting a transmission carrier output for performing wireless communication with the non-contact type IC card from the second external device. 8. The mobile terminal device according to claim 5, wherein the detection of the carrier detects that the mobile terminal device has approached the second external device to a predetermined distance. 8. The device according to claim 1, wherein the second external device is an automatic ticket gate for non-contact type IC cards, and the mobile terminal function unit is a mobile phone function unit. A portable terminal device according to any one of the claims. 8. The device according to claim 1, wherein the second external device is a computer compatible with a contactless IC card, and the mobile terminal function unit is a mobile phone function unit. The portable terminal device according to claim 1.

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