JPH0998480A - Portable communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unauthorized use by a third person and the leakage of data inside a portable terminal when a portable telephone or the like is lost or stolen. SOLUTION: When an ID card 20 is present and the signal reception part 21 of the ID card 20 is reached without a radio wave fault, to the portable terminal 10, confirmation signals for indicating that it is a correct user are transmitted from the confirmation signal transmission part 22 of the ID card 20 to the confirmation signal reception part 13 of the portable terminal 10. When the transmitted confirmation signals reach the confirmation signal reception part 13 of the portable terminal 10 without the radio wave fault, it is recognized by the portable terminal 10 that a person who turns on the switch of the power switch part 11 of the portable terminal 10 is the correct user, the power of the portable terminal 10 is turned ON and the data communication of voice and the data, etc., is performed as the portable terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone and a mobile phone F.
The present invention relates to prevention of unauthorized use of mobile communication devices of mobile terminals such as AX.

[0002]

2. Description of the Related Art In recent years, the number of subscribers has increased, and the applications in the field of mobile communication such as mobile terminals such as mobile phones and mobile FAXes are expanding more and more. At the same time, the problem of unauthorized use of mobile terminals comes to the surface. For example, if the mobile terminal is lost or stolen, it may be used illegally, or the data in the mobile terminal may be leaked and misused.
Therefore, it becomes necessary to monitor the power-on.

In view of this, the technique disclosed in Japanese Patent Laid-Open No. 3-241927 discloses a portable wireless device that detects the wearing state of a human body and opens / closes the power source accordingly.

Further, the technique disclosed in Japanese Patent Laid-Open No. 4-205245 discloses a technique for preventing illegal use by personal identification even when an ID card in which personal information is input is taken by a third party. .

[0005]

However, the technique disclosed in the former publication is a portable wireless device that detects the wearing state of the human body and opens and closes the power source accordingly, so if a third person wears it on the human body. If the mobile terminal becomes usable and is lost or stolen, it may be illegally used, data in the mobile terminal may be leaked, and the data may be misused, and power-on management is not complete.

Further, in the technique described in the latter publication, when the ID card in which the personal information is input is taken by a third party, when the personal information and the ID card do not match due to personal identification, It is forbidden to use, and it is necessary for each user to input a predetermined personal identification number. Therefore, it is inefficient and impractical to enter a personal identification number each time a mobile phone or the like is used.

[0007] Therefore, an object of the present invention is to provide a portable communication device which prevents unauthorized use by a third party or leakage of data in the portable terminal when the portable terminal is lost or stolen. It is a thing.

[0008]

A portable communication device according to a first aspect of the present invention includes a signal receiving section for receiving a transmitted signal and a signal transmitting section for transmitting a response signal when the signal receiving section operates. An ID card, a power switch section for turning on / off the power by a switch operation, and a power switch turned on by a switch operation of the power switch section,
A confirmation signal transmission unit that transmits a signal to the signal reception unit of the ID card, a confirmation signal reception unit that receives a response signal from the ID card, and a power switch when the response signal is received by the confirmation signal reception unit And a mobile terminal having a communication processing unit whose power is turned on according to a switch operation of the unit.

In the portable communication device according to the second aspect, the confirmation signal transmission unit confirms whether the ID card exists within a predetermined distance when the power is turned on by the switch operation of the power switch unit. It is a thing.

The ID of the portable communication device according to claim 3
The signal receiving unit of the card receives electric power at the same time, and when the signal receiving unit is operated thereby, it transmits a response signal of a specific code.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A portable communication device according to an embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a schematic configuration diagram of a portable communication device according to an embodiment of the present invention.

The mobile communication device of one embodiment of the present invention comprises a mobile terminal 10 and an ID card 20.

A mobile terminal 10 including a mobile phone, a mobile FAX, etc., has a power switch section 11 having a switch for turning the power on and off, and an ID card 20 when the power switch section 11 recognizes that the power is turned on. A confirmation signal for detecting the presence, that is, a response signal transmitted from the ID card 20 to the mobile terminal 10 when there is a specific response from the confirmation signal transmitting unit 12 that transmits a weak radio wave of a specific frequency and the ID card 20. And a communication processing unit 14 that processes data such as voice when the mobile terminal 10 is powered on.

More specifically, the power switch section 11 is self-held on / off by the operation of the key switch, and the confirmation signal transmission section 12 and the confirmation signal reception section 13 are operated by turning on the key switch (not shown). It turns on and enters the self-holding state. This self-holding state is released by the subsequent operation of the key switch and also by the program processing. The confirmation signal transmitting unit 12 generates a radio wave having a predetermined electric field strength, and the confirmation signal receiving unit 13 receives an output from the signal transmitting unit 22 of the ID card 20. If the confirmation signal transmitting unit 12 emits a predetermined light, the confirmation signal receiving unit 13 outputs I
It may be one that receives an optical output from the signal transmission unit 22 of the D card 20 or one that receives an electromagnetic wave.
Then, the communication processing unit 14 uses a known mobile phone, a mobile FA
It has a communication circuit as X.

The ID card 20 is composed of a signal receiving section 21 for receiving a signal from the portable terminal 10 and a signal transmitting section 22 for transmitting a response signal notifying the portable terminal 10 of the presence of the ID card 20. The signal receiving unit 21 and the signal transmitting unit 22 of the ID card 20 have an oscillating circuit that is in an operating state at a predetermined electric field strength input from the signal receiving unit 21, and the output of the oscillating circuit is used as the signal transmitting unit 22. Output from a battery with a built-in battery, or a device that oscillates with a predetermined electric field strength and does not need to be supplied with energy from the battery. In addition, the light from the mobile terminal 10 is ID
The signal receiving unit 21 of the card 20 receives the light and the signal transmitting unit 2
2 outputs a predetermined modulated light.

In the portable communication device thus configured, the relationship between the presence / absence of the ID card 20 and the on / off of the power source of the portable terminal 10 will be described.

FIG. 2 is a flow chart showing the operation procedure of power input in the portable communication device according to the embodiment of the present invention, which is controlled by the power switch unit.

First, the operation when the ID card 20 is present will be described.

The person holding the ID card 20 is the mobile terminal 10
By turning on the switch of the power switch unit 11, the process of this program is started, and it is determined in step S1 whether the switch is turned on and self-holding is performed, the counter C is reset in step S2, and the step S3 is performed. In step S4, a predetermined radio wave is output from the confirmation signal transmitter 12, and it is determined in step S4 whether or not there is a response to the confirmation signal.
In step S5, it is determined whether or not 3 seconds have elapsed, and during that period, the processes of steps S3 to S5 are continued. During,
An oscillation circuit in which a built-in circuit of the ID card 20 is activated by a radio wave having a predetermined electric field strength input from the signal reception unit 21 of the ID card 20 outputs a response from the oscillation circuit from the signal transmission unit 22.

When a confirmation signal is returned from the signal transmitting unit 22 of the ID card 20 in step S4, the counter C is incremented by "1" in step S7, and it is determined in step S8 whether the value of the counter C is 2 or more. To do. Counter C
If the value of is not 2 or more, the process returns to step S3 and the routines of steps S3 to S8 are repeatedly executed, and it is determined that the value of the counter C is 2 or more and the accidental noise is not the confirmation signal. Then, in step S9, the power of the communication processing unit 14 is turned on, and the power of the confirmation signal transmission unit 12 and the confirmation signal reception unit 13 is turned off to suppress unnecessary power consumption. After the power of the communication processing unit 14 is turned on in step S9, the communication processing unit 14 is in an operating state, and the mobile terminal 10 can be used as a mobile phone or a mobile terminal.

Next, the operation when the ID card 20 does not exist will be described.

When a person who does not have the ID card 20 turns on the switch of the power switch section 11 of the portable terminal 10, the processing of this program is started, and step S
In 1 it is judged whether it is turned on by the switch operation and held by itself, the counter C is reset in step S2, a predetermined radio wave is output from the confirmation signal transmission unit 12 in step S3, and a response to the confirmation signal is sent in step S4. It is determined whether or not there is, and in step S5, it is determined whether or not 3 seconds have elapsed, and during that period, the processes of steps S3 to S5 are continued. Meanwhile, since the ID card 20 does not exist, step S5
Then, it is determined that 3 seconds have elapsed, and in step S6, the self-holding of the power source is released to turn it off. That is, the ID card 20
Even if a person who does not have the switch turns on the power switch unit 11 of the mobile terminal 10, the person cannot use it completely after 3 seconds.

Next, the operation when the radio interference occurs during the transmission / reception of the confirmation signal will be described.

The person holding the ID card 20 is the mobile terminal 10
By turning on the switch of the power switch unit 11, the process of this program is started, and it is determined in step S1 whether the switch is turned on and self-holding is performed, the counter C is reset in step S2, and the step S3 is performed. In step S4, a predetermined radio wave is output from the confirmation signal transmitter 12, and it is determined in step S4 whether there is a response to the confirmation signal.
In step S5, it is determined whether or not 3 seconds have elapsed, and during that period, the processes of steps S3 to S5 are continued. During,
An oscillation circuit in which a built-in circuit of the ID card 20 is activated by a radio wave having a predetermined electric field strength input from the signal reception unit 21 of the ID card 20 outputs a response from the oscillation circuit from the signal transmission unit 22.

When the confirmation signal is returned from the signal transmitting unit 22 of the ID card 20 in step S4, the counter C is incremented by "1" in step S7, and it is determined in step S8 whether the value of the counter C is 2 or more. To do. At this time,
When the value of the counter C does not become 2 or more due to the presence of noise, the routine of steps S3 to S8 is repeatedly executed, and when the value of the counter C becomes 2 or more within 3 seconds, the confirmation signal is generated by noise. It is determined that the power has been cut off, and in step S9, the power of the communication processing unit 14 is turned on and the power of the confirmation signal transmission unit 12 and the confirmation signal reception unit 13 is turned off to suppress unnecessary power consumption. This step S
After the power of the communication processing unit 14 is turned on in 9, the communication processing unit 14 is activated and the mobile terminal 10 can be used as a mobile phone or a mobile FAX.

As described above, the portable communication device of the present embodiment has the signal receiving unit 21 for receiving the transmitted signal and the signal transmitting unit 22 for transmitting the response signal when the signal receiving unit 21 operates. An ID card 20 and a power switch section 11 for turning the power on and off by a switch operation,
When the power is turned on by the switch operation of the power switch unit 11, a confirmation signal transmission unit 12 that transmits a signal to the signal reception unit 21 of the ID card 20 and a confirmation signal reception unit 13 that receives a response signal from the ID card 20. And a mobile terminal 10 having a communication processing unit 14 that is turned on according to a switch operation of the power switch unit 11 when a response signal is received by the confirmation signal receiving unit 13. The embodiment of item 1 can be adopted.

Even if the power switch unit 11 is turned on, the portable terminal 10 is not immediately turned on. First, the value of the counter value C is set to 0, and in order to confirm whether the person who has turned on the power switch unit 11 is the correct user, the ID card 20 carried by the correct user is detected. The confirmation signal is transmitted from the peripheral radius of the mobile terminal 10 in the range of 1-1.
It is transmitted within a range of 5 m. When the ID card 20 is present and reaches the signal receiving unit 21 of the ID card 20 without radio interference, the signal receiving unit 21 of the ID card 20 receives the detection signal and confirms that the user is a correct user for the mobile terminal 10. The confirmation signal transmitting unit 22 of the ID card 20
To the confirmation signal receiving unit 13 of the mobile terminal 10. When the transmitted confirmation signal reaches the confirmation signal reception unit 13 of the mobile terminal 10 without radio interference, the person who satisfies the confirmation signal reception condition and turns on the power switch unit 11 of the mobile terminal 10 is the correct user. Is recognized by the mobile terminal 10, the power of the mobile terminal 10 is turned on, and data communication such as voice and data can be performed as the mobile terminal. When the data communication is completed, the power supply of the mobile terminal 10 is turned off to enter the end state.

When a person who does not have the ID card 20 turns on the switch of the power switch unit 11 of the portable terminal 10, a confirmation signal is transmitted to the ID card 20, but I
Since the D card 20 does not exist, the confirmation signal sent back cannot be received, and a non-responsive state occurs. As a result, the communication processing unit 14 of the mobile terminal 10 is not powered on and the mobile communication function is in an unused state. When the portable terminal 10 is not powered on and is in an unused end state, the switch turned on by the switch operation is released from self-holding.

In addition, if the radio interference occurs during the transmission / reception of the confirmation signal, the ID is the same as the operation when there is no radio interference.
Although the confirmation signal is transmitted to the card 20, the confirmation signal transmitted from the confirmation signal transmitting unit 12 of the mobile terminal 10 to the confirmation signal receiving unit 21 of the ID card 20 is returned due to some temporary electromagnetic interference. If not, the confirmation signal is transmitted again to the confirmation signal receiving unit 21 of the ID card 20. Here, if the ID card 20 side can be successfully received, a confirmation signal is transmitted to the mobile terminal 10. However, if the confirmation signal cannot be received again, by the time the value of the counter C reaches a predetermined value, After a lapse of a predetermined time, it is considered that the radio wave condition is bad, the communication processing unit 14 of the mobile terminal 10 is not powered on, and the mobile communication device is in an unused state and is in an end state.

Therefore, the ID card 20 and the portable terminal 1
With the combination of 0, only the legitimate owner can use the mobile terminal 10
Can be used.

The confirmation signal may be a predetermined code, the presence of radio waves, or light.

Therefore, by attaching the ID card 20 to the mobile terminal 10, if the mobile terminal 10 is lost or stolen, other people can turn on the power and the data in the mobile terminal 10 can be stolen. It is prevented from being illegally used, and the safety of the mobile terminal 10 is enhanced.

The confirmation signal transmission unit of the portable communication device of the present embodiment confirms whether the ID card 20 exists within a predetermined distance by radio waves when the power is turned on by operating the power switch unit 11. This is an embodiment corresponding to claim 2.

Therefore, even if the ID card 20 is stored in the pocket and the portable terminal 10 is held in the hand, both can be confirmed, and it is not necessary to always manage the ID card 20 and the portable terminal 10 as one unit, and reliability is improved. improves.

The signal receiving unit 21 of the ID card 20 of the portable communication device according to the present embodiment receives electric power at the same time, and when the signal receiving unit 21 operates thereby, it transmits a response signal of a specific code. This can be an embodiment corresponding to claim 3. Therefore, it is not necessary to prepare a battery for the ID card 20, and the ID card 20 can be used semipermanently.

[0037]

As described above, the portable communication device according to claim 1 has the ID card having the signal transmitting unit for transmitting the response signal when the signal receiving unit for receiving the transmitted signal operates, and the switch operation. A confirmation signal transmission unit that transmits a signal to the signal reception unit of the ID card and a confirmation that a response signal from the ID card is received when the power is turned on by operating the power switch unit that turns the power on and off A mobile terminal having a signal receiving unit and a communication processing unit that is turned on according to a switch operation of a power switch unit when a response signal is received by the confirmation signal receiving unit, the ID card and the mobile terminal. By the combination of, only the authorized owner can use the mobile terminal. Therefore, by attaching an ID card to the mobile terminal, if the mobile terminal is lost or stolen, it can be turned on by another person and the data in the mobile terminal can be stolen or illegally used. Prevents and increases safety.

The confirmation signal transmitting section of the portable communication device according to claim 2 confirms whether the ID card exists within a predetermined distance when the power is turned on by operating the switch of the power switch section. is there. Therefore, in addition to the effect of claim 1, even if the ID card is stored in the pocket and the mobile terminal is held in the hand, both can be confirmed, and it is not necessary to manage the ID card and the mobile terminal as one unit, and the reliability can be improved. The property is improved.

The signal receiving section of the ID card of the portable communication device according to the third aspect receives electric power at the same time, and when the signal receiving section operates thereby, transmits a response signal of a specific code. Therefore, in addition to the effect of claim 1, it is not necessary to prepare a battery for the ID card, and the ID card can be used semipermanently.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a mobile communication device according to an embodiment of the present invention.

FIG. 2 is a flow chart showing the operation procedure of power input in the mobile communication device according to the embodiment of the present invention, which is controlled by the power switch unit.

[Explanation of symbols]

 10 Mobile Terminal 20 ID Card 14 Communication Processing Section 11 Power Switch Section 12 Confirmation Signal Transmitting Section 13 Confirmation Signal Receiving Section 21 Signal Receiving Section 22 Signal Transmitting Section

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location H04N 1/00 H04N 1/00 C 1/44 1/44

Claims (3)

[Claims] 1. An ID card having a signal receiving unit for receiving a transmitted signal and a signal transmitting unit for transmitting a response signal when the signal receiving unit operates, and a power supply is turned on / off by a switch operation. A power switch unit, a confirmation signal transmission unit that transmits a signal to a signal reception unit of the ID card when the power is turned on by operating the power switch unit, and a confirmation signal that receives a response signal from the ID card. A mobile communication device comprising: a mobile terminal having a receiving unit and a communication processing unit that is turned on according to a switch operation of a power switch unit when a response signal is received by the confirmation signal receiving unit. . 2. The confirmation signal transmitting unit confirms whether the ID card is present within a predetermined distance when the power is turned on by a switch operation of the power switch unit. The mobile communication device according to. 3. The mobile phone according to claim 1, wherein the signal receiving unit of the ID card receives electric power at the same time, and when the signal receiving unit operates, a response signal of a specific code is transmitted. Communication device.