JPH0865740A - Portable communication equipment - Google Patents

Abstract

PURPOSE: To provide a portable communication equipment capable of surely protecting internal data. CONSTITUTION: The ID of ID memory 28 is stored when the power source of a portable telephone set is disconnected and the ID memory 28 is dismounted. Thence, when the ID memory 28 is loaded to use the portable telephone set and also, when the ID memory 28 loaded this time is different from the one loaded last time, user data such as telephone directory data and the history of transmission/reception. etc., stored in a RAM 22 is cleared.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication device having a removable ID memory.

[0002]

2. Description of the Related Art Recently, as a portable communication device, a portable telephone has been used with the practical use of PHS (Personal Handyphone System). By the way, in such mobile phones, the ID given by the contract with the telephone company
There is a detachable ID memory that stores information about the owner such as (subscriber number) and information necessary for communication.

In this case, when the mobile phone is equipped with an ID memory, information about the owner such as the ID is fetched from the memory, and based on this information, a call is made to / from a base station (not shown).

[0004]

However, in such a mobile phone, any person can freely use the mobile phone if the ID memory is attached, so that such a mobile phone can be used by others. If you rent or drop it, other users will see the user data such as the phonebook data and call history remaining inside the mobile phone, and in the worst case, these data will be misused. There was a problem. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mobile communication device capable of reliably protecting internal data.

[0005]

According to the present invention, an ID memory storing a predetermined identifier is detachably attached to a portable communication device, and when the ID memory attached to the portable communication device is removed, the identifier of the ID memory is removed. The ID storage means for storing the ID, the comparison means for comparing the identifier stored in the ID memory with the identifier stored in the ID storage means when the ID memory is attached to the portable communication device, and the comparison means. And the control means for clearing the internal data of the portable communication device when the comparison results of 1) do not match.

Further, according to the present invention, in a portable communication device in which an ID memory storing a predetermined identifier is detachable, an ID storing means storing at least one identifier corresponding to the ID memory identifier of a legitimate user, When the ID memory is attached to the portable communication device, comparing means for comparing the identifier stored in the ID memory with the identifier stored in the ID storing means, and when the comparison result by the comparing means does not match, And a control means for restricting the use of the portable communication device.

Further, the present invention provides a portable communication device having a removable ID memory, which has storage means for storing at least one unique identifier of the portable communication device usable in the ID memory. An ID storage unit storing an identifier unique to the mobile communication device, and an identifier stored in the ID memory when the ID memory is attached and the I
Comparison means for comparing the identifiers stored in the D storage means,
And a control means for restricting the use of the portable communication device when the comparison results of the comparison means do not match.

Further, the present invention provides a portable communication device having a removable ID memory, which has storage means for storing at least one identifier peculiar to the portable communication device usable in the ID memory. An ID storage unit storing an identifier unique to the mobile communication device, and an identifier stored in the ID memory when the ID memory is attached and the I
Comparison means for comparing the identifiers stored in the D storage means,
When the comparison results of the comparison means do not match, at least the regulation means for regulating reading of the ID from the portable communication device is provided.

Further, according to the present invention, there is provided a password storage means for storing a predetermined password, and when the comparisons by the comparison means do not match, the password is input and the password stored in the password storage means. It is configured to permit the use of the mobile communication device when the comparison results match.

Further, the present invention provides a portable communication device having a removable ID memory, wherein the ID memory has a storage means provided with a user use area, and the portable communication device is provided with the storage means. It is configured to have a judging means for judging the removal of the ID memory and a controlling means for transferring the internal data of the portable communication device to the user use area of the ID memory according to the judgment result of the judging means.

[0011]

According to the present invention, the ID attached to the portable communication device
When the memory is removed, the identifier of the ID memory is stored in the ID storage means, and next, when the ID memory is attached to the mobile communication device, the identifier of the ID memory and the identifier stored in the ID storage means are compared, When the comparison results do not match, the internal data of the mobile communication device is cleared, so that reading of the internal data can be prevented when different ID memories are used.

Further, according to the present invention, the ID of the legitimate user
ID of at least one identifier corresponding to the identifier of the memory
When the ID memory is stored in the storage means and the mobile communication device is equipped with the ID memory, the identifier of the ID memory is compared with the identifier stored in the ID storage means, and when the comparison result does not match, use of the mobile communication device Is restricted, it is possible to restrict the use of the mobile communication device other than the ID memory of the authorized user.

Further, according to the present invention, at least one identifier unique to the portable communication device that can be used is stored in the ID memory, and when the ID memory is attached to the portable communication device, the identifier of the ID memory is stored. The identifiers unique to the mobile communication device stored in the ID storage means are compared with each other, and when the comparison results do not match, the use of the mobile communication device is restricted. Therefore, except for the mobile communication device corresponding to the identifier of the ID memory. The use of can be restricted.

Further, according to the present invention, at least one identifier unique to the portable communication device that can be used is stored in the ID memory, and when the ID memory is attached to the portable communication device, the identifier of the ID memory is used. The identifiers unique to the mobile communication device stored in the ID storage means are compared, and when the comparison results do not match, at least the reading of the ID from the mobile communication device is restricted, so that the IDs correspond to the identifiers of the ID memory. It is possible to restrict the use of devices other than the mobile communication device.

Further, according to the present invention, a predetermined password is stored in the password storage means, and when the comparison of the identifiers in the comparison means does not match, the password is input and the password in the password storage means is input. Since the use of the mobile communication device is permitted based on the coincidence of the comparison results, it is possible to use the mobile phone even when the ID memory is lost.

Further, according to the present invention, a user use area is prepared in the ID memory so that the ID from the portable communication device can be obtained.
When the removal of the memory is determined, the internal data of the mobile communication device is transferred to the user use area of the ID memory, so that it is possible to prevent the user data and the like from remaining inside the mobile communication device when the ID memory is removed. it can.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 shows a schematic configuration of a first embodiment in which the present invention is applied to a mobile phone in a PHS.

In the figure, 11 is an antenna, and a high frequency section 12 is connected to this antenna 11. The high frequency unit 12 performs frequency conversion processing, and includes an antenna switch unit 121, a receiving unit 122, a transmitting unit 123, and a P unit.
It has an LL synthesizer 124.

Here, the antenna switch section 121 receives the input signal from the antenna 11 to the receiving section 122 and the transmitting section 1
The output signal from 23 is distributed to the antenna 11. The reception unit 122 receives the reception signal input from the antenna 11 via the antenna switch unit 121.
Convert frequency from 1.9GHz to 1 by stage mixer
An IF signal of 50 to 250 MHz and 10 MHz is generated. The transmitting unit 123 frequency-converts a π / 4-shift QPSK modulated wave input from the modem 13 described later into 1.9 GHz by a mixer and outputs the frequency-modulated wave to the antenna 11 via the antenna switch unit 121. Then, the PLL synthesizer 124 performs local oscillation for frequency conversion in the receiving unit 122 and the transmitting unit 123.

The high-frequency section 12 has a modem 13,
The TDMA processing unit 14, the speech codec 15 and the PCM codec 16 are connected, and a speaker 18 on the receiving side is connected to the PCM codec 16 via an amplifier 17.
The microphone 19 on the transmitting side is connected.

Here, the modem 13 uses a π / 4 shift QP
It performs SK modulation and demodulation processing, and at the receiving side, the receiving unit 1
The IF signal from 22 is demodulated and separated into IQ data,
The data is transferred to the TDMA processing unit 14 as a data string, and on the transmission side, IQ data is created from the data transferred from the TDMA processing unit 14, π / 4 shift QPSK modulation is performed, and the data is sent to the transmission unit 124. I have to.

The TDMA processing unit 14 performs frame synchronization and slot data format processing. At the receiving side, one slot of data is extracted from the received data sent from the modem 13 at a predetermined timing, and this After extracting the unique word (synchronization signal) from the data to achieve frame synchronization, and after descrambling the control data and voice data section, the control data is sent to the control section 20 and the voice data is sent to the speech codec 15. Forward. Also, on the transmitting side, control data or the like is added to the voice data transferred from the speech codec 15 to create transmission data, and after scrambling, a unique word or the like is added to transmit data for one slot. It is created, inserted at a predetermined timing in the frame at a predetermined timing, and transmitted to the modem 13.

The speech codec 15 is for compressing / decompressing digital data.
The ADPCM codec voice signal (4 bit × 8 KHz = 32 Kbps) sent from the MA processing unit 14 is set to P
CM codec voice signal (8bit × 8KHz = 64
Kbps) to decompress and output the PCM codec 16 to the PCM codec 16. At the transmitting side, the PCM codec audio signal sent from the PCM codec 16 is encoded into an ADPCM codec audio signal and compressed to perform TDMA processing. It is sent to the section 14.

The PCM codec 16 performs analog / digital processing. On the receiving side, the PCM codec voice signal sent from the speech codec 15 is converted into an analog signal by D / A conversion and then output to the amplifier 17. Then, the speaker 18 is driven, and on the transmission side, the analog voice signal input from the microphone 19 is A / D converted and the PCM codec voice signal is output to the speech codec 15. The PCM codec 16 also outputs a ringer signal, a tone signal, and the like. The speaker 18 is also configured to notify the message stored in the message storage unit 24 described later.

Then, the high frequency section 12 and the modem 1
3, a control unit 20 is connected to the TDMA processing unit 14, the speech codec 15, and the PCM codec 16, and the ROM 21, the RAM 22, the interface 23, the recording / reproducing circuit 24, the memory 25, the display unit 26, the keys are connected to the control unit 20. The input unit 27 is connected.

Here, the ROM 21 stores a control program for the control section 20. Further, the RAM 22 temporarily stores the data handled under the control of the control unit 20, and also stores the user data such as telephone directory data and call history.

The interface 23 is an ID memory 28.
Is connected. A ROM is used as the ID memory 28 in this case, and information about the owner such as an ID (subscriber number) based on a contract with the telephone company and information necessary for communication are stored in advance.

The recording / reproducing circuit 24 records the message message transmitted from the other party in the answering machine mode or reproduces the message message of the other party already recorded. The memory 25 stores a typical message or the like when used as an answering machine, and reproduces a response message to an incoming call.

The display unit 26 displays input data and results for various controls. Key input part 2
Reference numeral 7 denotes a key input operation for instructing a simultaneous call and a key input operation for setting various functions.

The controller 20 controls each circuit according to the control program stored in the ROM 21. Next, the operation of the first embodiment configured as above will be described.

In this case, the operation shown in FIGS. 2A and 2B is executed when the use of the mobile phone is completed. First, step 2
When the power switch (not shown) of the mobile phone is turned off in 01, the ID of the ID memory 28 currently used is temporarily stored in the RAM 22 in step 202, and then the power is turned off in step 203. Come to do.

In this case, even if the power is turned off, the RAM 22
Are backed up by a power supply. Next, since the mobile phone is used, when the power is turned on in step 204 with the ID memory 28 attached, as shown in FIG. 2B, the ID is read from the ID memory 28 in step 205. Go to step 206.

In step 206, the ID of the previously mounted ID memory 28 stored in the RAM 22 is read out and compared with the ID of the currently mounted ID memory 28. Here, if the previously mounted ID and the currently mounted ID match, in step 207, the use of the mobile phone is permitted, and the process ends. On the other hand, if the previously installed ID and the currently installed ID do not match, it is determined that the previously installed ID memory 28 and the currently installed device ID memory 28 are different, and step 2
In step 08, the user data such as telephone directory data and call history stored in the RAM 22 of the mobile phone is cleared, and then in step 207, the use of the mobile phone is permitted, and the process ends.

Therefore, according to such a first embodiment,
When the power of the mobile phone is turned off and the ID memory 28 is removed, the ID of the ID memory 28 is stored.
When the ID memory 28 is mounted because the mobile phone is used and the ID memory 28 currently mounted is different from the previously mounted ID memory 28, the user such as the telephone directory data and the incoming / outgoing call history stored in the RAM 22 is Since the data is cleared, even if the mobile phone is lent to another person or dropped, other users can see the user data such as the phone book data and call history remaining inside the mobile phone. Therefore, it is possible to surely avoid a situation where the information is abused. (Second Embodiment) Next, a second embodiment of the present invention will be described.

In this case, since the circuit configuration of the mobile phone is the same as that of FIG. 1, the same drawing will be incorporated. In addition to storing the control program of the control unit 20, the ROM 21 as an information about the user corresponds to the ID stored in the ID memory 28 of the authorized user.
Remember D.

In this case, the flow chart shown in FIG. 3 is executed by turning on the power switch of the mobile phone. First, in step 301, a power switch (not shown)
When is turned on, it is determined in step 302 whether the ID memory 28 is attached.

If the ID memory 28 is not attached, the process is terminated and the power is not supplied. On the other hand, ID
If the memory 28 is mounted, the process proceeds to step 303 and power supply is started. Then, step 304
Then, the ID is read from the ID memory 28, and step 30
5, the ID of the ID memory of the legitimate user stored in the ROM 21 is compared with the ID of the ID memory 28 attached this time.

Here, the ID of the ID memory of the legitimate user stored in the ROM 21 and the I of the ID memory 28 installed this time.
If D matches, in step 306, the use of the mobile phone is permitted, and the process ends. On the other hand, if the ID of the legitimate user's ID memory stored in the ROM 21 and the ID of the ID memory 28 currently installed do not match, it is determined that the use of the ID of the ID memory 28 currently installed is not permitted,
Proceed to step 307, and display the use disapproval on the display unit 26.
And stop the power supply in step 308,
The process ends.

In this case, the ID of the ID memory of the legitimate owner is one in the above description, but the IDs of a plurality of ID memories may be stored. Further, in the above description, the ROM 2
If the ID of the ID memory of the legitimate owner stored in 1 does not match the ID of the ID memory 28 attached this time, the use is disapproved and the power supply is stopped. May be stored in the ROM 21, and when the IDs do not match, a password may be input, and if the passwords match, the use permission of the mobile phone may be given.

Therefore, according to the second embodiment as described above,
The information on the user is stored in the ROM 21 as I of the legal user.
The ID of the D memory is stored and the ID of this legitimate user is stored.
Since the use of the mobile phone is permitted only when the memory is attached, it is possible to prohibit the use of devices other than those having a valid ID memory, and this also allows the phonebook data remaining inside the mobile phone to be prohibited. It is possible to surely avoid the situation where the user data such as the call history and the call history is seen and used by others.

The area of the RAM 22 for storing user data such as telephone directory data and call history is shown in FIG.
A plurality of user areas 221 and 222 are provided corresponding to the IDs of different ID memories 28 as shown in FIG. 3, and only when the ID memories 28 corresponding to these user storage areas 221 and 222 are attached, the respective user areas 221 or 22
If user data from 2 is read, RA
It becomes possible to manage the user data in the user areas 221 and 222 of M22 based on the ID. (Third Embodiment) Next, a third embodiment of the present invention will be described.

Also in this case, the circuit configuration of the mobile phone is similar to that of FIG. It should be noted that the ID memory 28 here stores at least one usable unique identifier of the mobile phone. Also,
The ROM 21 stores an identifier unique to the mobile phone and a predetermined password, in addition to storing the control program of the control unit 20.

In this case, by turning on the power switch of the mobile phone, the flowchart shown in FIG. 5 is executed. First, in step 501, a power switch (not shown)
When is turned on, it is determined in step 502 whether the ID memory 28 is attached.

If the ID memory 28 is not attached, the process ends. On the other hand, if the ID memory 28 is attached, the process proceeds to step 503 to start power supply. Then, in step 504, the ID memory 2
Read the usable unique identifier of the mobile phone from 8.
In step 505, the unique identifier of the mobile phone read from the ROM 21 is compared with the usable unique identifier of the mobile phone read from the ID memory 28 mounted this time.

If the unique identifier of the mobile phone read out from the ROM 21 matches the usable unique identifier of the mobile phone of the ID memory 28 installed this time, in step 506, the use of the mobile phone is permitted and the processing is executed. finish. On the other hand, if the mobile phone unique identifier read from the ROM 21 does not match the usable mobile phone unique identifier from the ID memory 28 installed this time, step 5
In step 07, the control unit 20 instructs the display unit 26 to input the password.

Then, in response to this request, when the user inputs a predetermined password from the key input unit 27, the password read from the ROM 21 and the password input from the key input unit 27 are compared in step 508.

If the password read from the ROM 21 and the password input from the key input unit 27 match, the process proceeds to step 506, the use of the mobile phone is permitted, and the process ends. On the other hand, if the password read from the ROM 21 does not match the password input from the key input unit 27, in step 509, a display indicating that the use is not permitted is displayed on the display 26, and in step 510 the power supply is turned off to limit the use of the mobile phone. The supply is stopped and the process ends.

In this case, the power supply was stopped to disallow the use of the mobile phone, but the ID from the mobile communication device was used.
You can also restrict the loading of. Therefore, according to the third embodiment as described above, the usable unique identifier of the mobile phone is stored in the ID memory 28, and when the identifier is attached to the mobile phone, the identifier unique to the mobile phone stored in the ROM 21 is stored. The mobile phone unique identifiers read from the ID memory 28 are compared, and if they do not match, the use of the mobile communication device is prohibited or the reading of the ID from the mobile communication device is restricted. In this case as well, it becomes possible to restrict the use of the valid ID memory 28 other than the matching of the mobile phones, which allows other users to see the user data such as the phone book data and the incoming / outgoing call history remaining inside the mobile phone. Therefore, it is possible to surely avoid a situation where the information is abused.

When the identifier unique to the mobile phone stored in the ROM 21 does not match the identifier unique to the mobile phone available to be stored in the ID memory 28, the use of the mobile phone is permitted by inputting the password. Therefore, even if the ID memory 28 is lost, it is possible to avoid the situation in which the mobile phone cannot be used. (Fourth Embodiment) Next, a fourth embodiment of the present invention will be described.

Also in this case, the circuit configuration of the mobile phone is similar to that of FIG. As the ID memory 28, a readable / writable one such as an EEPROM is used to store information related to the owner such as an ID (subscriber number) based on a contract with a telephone company and information necessary for communication. Has a user use area for storing user data such as telephone directory data and call history.

Further, the mobile phone has an ID memory mounting section for mounting the ID memory 28. Figure 6 (a)
FIG. 7B shows a schematic configuration of the ID memory mounting section.

In this case, the ID memory mounting portion is constructed such that the rectangular ID memory 28 is housed in the groove-shaped memory housing portion 30 and the lid 31 is closed from above. Inside the memory accommodating portion 30, with the ID memory 28 set in a predetermined position, facing both side edges of the ID memory 28,
A pair of support claw portions 32, 32 and 33, 33 are arranged respectively. The pair of support claw portions 32, 32 and 33, 33 are made of a spring member, and the cushion 4
In the state of (a) in FIG. 3 in which the lid 31 is closed by sandwiching 3 between them, both side edges of the ID memory 28 are clamped and fixed by the spring force thereof. When the lid 31 is opened, the lid 31
The output from the lid open state detection unit 34 for detecting the open state of is given to the control unit 20. Then, the control unit 20 writes data to the ID memory 28 via the electrical connection points 42, 42 between the substrate 41 and the ID memory 28, and waits for this end to give a control instruction to the transistor drive circuit 35 so that the transistor 36, By turning on 37 and urging the electromagnets 38 and 39 to deform the support claws 32, 32 and 33, 33 against the spring force as shown in FIG.
The sandwiching of both side edges of the memory 28 is released.

With this structure, the flow chart shown in FIG. 8 is executed by turning off the power switch of the mobile phone. First, when the power is turned off in step 701, it is determined in step 702 whether the lid 31 is opened to remove the ID memory 28 from the ID memory mounting portion. In this case, whether or not the lid 31 is opened is determined by the detection output from the lid opening detection unit 34.

Then, when it is determined in step 702 that the lid 31 is opened, in step 703 the control unit 20 sends an ID.
When it is determined that the memory 28 is to be removed, in step 704, the user data such as the telephone directory data and the incoming / outgoing call history stored in the RAM 22 is transferred to the user area of the ID memory 28.

When the data transfer is completed, the process proceeds to step 705, the user data stored in the RAM 22 is cleared, and in step 706, the power supply is stopped and the process is completed.

Therefore, according to such a fourth embodiment,
A user area for storing user data such as telephone directory data and call history is provided in the ID memory 28.
When removing the D memory 28 from the mobile phone, the RAM 2
Since the user data such as the telephone directory data and call history stored in 2 are transferred to the user area of the ID memory 28 and the user data of the RAM 22 is cleared, the telephones remaining inside the mobile phone It is possible to reliably prevent a situation in which the user data such as the book data and the incoming / outgoing call history is viewed by another person and is misused.

The present invention is not limited to the above-mentioned embodiments, but can be carried out by appropriately modifying it within the scope of the invention. For example, in the above description, the example in which the PHS is consistently applied to the mobile phone has been described. However, the present invention can also be applied to a general mobile communication device having a removable ID memory.

[0058]

As described above, according to the present invention, the ID
When the memory is removed, the ID memory identifier is stored, and when the ID memory is attached next time and the comparison result between the ID memory identifier and the previously stored identifier does not match, the internal data is cleared. Because I am trying to
It is possible to prevent the reading of internal data when different ID memories are used. This makes it possible to lend the phonebook data or data stored in the mobile phone even when the mobile phone is lent to another person or dropped. It is possible to reliably avoid a situation where the user data such as the incoming call history is seen and misused by another person.

Further, according to the present invention, the ID of the legitimate user
The identifier corresponding to the identifier of the memory is stored and the ID
When the memory is attached, if the comparison result between the identifier of the ID memory and the identifier stored in advance does not match, the use of the portable communication device is restricted, so that the portable memory device other than the ID memory of the legitimate user can be used. It is possible to restrict the use of communication devices, and in this case as well, in the same way as described above, it is possible to ensure that the user data such as the phone book data and call history that are left inside can be seen and abused by others. Can be avoided.

Further, according to the present invention, an identifier peculiar to the portable communication device which can be used is stored in the ID memory, and I
When the D memory is mounted, if the comparison result between the identifier of the ID memory and the identifier unique to the mobile communication device does not match, the use of the mobile communication device is restricted or the reading of the ID is restricted. It is possible to restrict the use of devices other than the mobile communication device corresponding to the identifier of, and in this case also, in the same manner as described above, the user data such as the phone book data and the call history recorded inside can be seen and misused by others. It is possible to reliably avoid such a situation.

Further, according to the present invention, a user use area is prepared in the ID memory so that the ID from the portable communication device can be obtained.
When it is decided to remove the memory, the internal data is transferred to the user use area of the ID memory.
When the D-memory is removed, the user can
Data can be prevented from remaining, and in this case also, user data such as phonebook data and call history can be seen by others,
It is possible to surely avoid a situation where the information is abused.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a first embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the first embodiment.

FIG. 3 is a flowchart for explaining the operation of the second embodiment of the present invention.

FIG. 4 is a diagram showing a schematic configuration of a RAM used in the second embodiment.

FIG. 5 is a flowchart for explaining the operation of the third embodiment of the present invention.

FIG. 6 is a diagram showing a schematic configuration of an ID memory mounting portion used in a fourth embodiment of the present invention.

FIG. 7 is a diagram showing a schematic configuration of an ID memory mounting portion used in a fourth embodiment.

FIG. 8 is a flowchart for explaining the operation of the fourth embodiment.

[Explanation of symbols]

 11 ... Antenna, 12 ... High frequency part, 121 ... Antenna switch part, 122 ... Receiving part, 123 ... Transmitting part, 124 ... PLL synthesizer, 13 ... Modem, 14 ... TDMA processing part, 15 ... Speech codec, 16 ... PCM codec, 17 ... Amplifier, 18 ... Speaker, 19 ... Microphone, 20 ... Control part, 21 ... ROM, 22 ... RAM, 23 ... Interface, 24 ... Recording / playback circuit, 25 ... Memory, 26 ..., Display part, 27 ... Key input part , 28 ... ID memory, 30 ... Memory accommodating section, 31 ... Lid, 32, 33 ... Support claw section, 34 ... Lid open state detecting section, 35 ... Transistor drive circuit, 36, 37 ... Transistor, 38, 39 ... Electromagnet.

Claims (6)

[Claims] 1. A portable communication device in which an ID memory storing a predetermined identifier is detachable, and an ID storage unit for storing the identifier of the ID memory when the power of the portable communication device is turned off, and the portable communication. When the power of the device is turned on, comparing means for comparing the identifier stored in the ID memory with the identifier stored in the ID storing means, and when the comparison result by the comparing means does not match, the internal data of the portable communication device A portable communication device comprising: 2. A portable communication device in which an ID memory storing a predetermined identifier is detachable, and an ID storage unit storing at least one identifier corresponding to the identifier of the ID memory of a legitimate user, and the portable communication device. When the power is turned on, comparing means for comparing the identifier stored in the ID memory with the identifier stored in the ID storing means, and when the comparison result by the comparing means does not match, the use of the portable communication device is restricted. A mobile communication device, comprising: 3. A portable communication device having a removable ID memory, comprising storage means for storing at least one identifier unique to the portable communication device that can be used in the ID memory, ID storage means for storing an identifier unique to the mobile communication device; comparison means for comparing the identifier stored in the ID memory with the identifier stored in the ID storage means when the ID memory is attached; And a control means for restricting the use of the portable communication device when the comparison results in 1. are not coincident with each other. 4. A portable communication device having a removable ID memory, comprising storage means for storing at least one identifier unique to the portable communication device that can be used in the ID memory, ID storage means for storing an identifier unique to the mobile communication device; comparison means for comparing the identifier stored in the ID memory with the identifier stored in the ID storage means when the ID memory is attached; The mobile communication device further comprises: a restriction unit that restricts at least reading of the ID from the mobile communication device when the comparison results in 1. above do not match. 5. A password storage means for storing a predetermined password is provided, and when the comparison in the comparison means does not match, the comparison result of the password and the password stored in the password storage means is matched by inputting the password. The mobile communication device according to claim 2, 3 or 4, wherein the use of the mobile communication device is permitted according to. 6. A portable communication device having a removable ID memory, comprising storage means having a user use area in the ID memory, and storing the ID memory from the portable communication device in the portable communication device. A portable communication device comprising: a determination unit that determines removal; and a control unit that transfers internal data of the portable communication device to a user use area of the ID memory according to the determination result of the determination unit.