JP2002281148A - Mobile telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile telephone which enables to limit its functions by easy operation from an other telephone in missing or theft cases, and thereby can prevent illegal use by a finder with malicious intent and can protect the information such as a telephone directory stored in the memory. SOLUTION: The mobile telephone comprises an identification information receiving section 12, which receives the identification information about a caller when there is an arrival of a call at the telephone, identification information registering section 15 for registering particular identification information, identification information consistency determining section 22 which determines whether the identification information about a caller received by the identification information receiving section 12 and the particular identification information registered in the identification information registering section 15 are consistent with each other, and control section 13 which limits the functions when there are the set number of consistencies within a set time period. The control section 13 moves a mode to a power-saving mode, when it limits the functions. When limiting the functions, the control section 13 dials a number 17 which is the identification information registered in the identification information registering section 15, and sends out a confirmation message.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can prevent a person other than the owner from illegally using or stolen information stored in a memory such as a telephone directory in the event of loss or theft. The present invention relates to a mobile phone device.

[0002]

2. Description of the Related Art In recent years, portable telephones for making a telephone call by connecting a telephone and a radio base station by a wireless line have been reduced in size and weight, are convenient to carry, and can be used anywhere. It is rapidly spreading. Due to the nature of such mobile phones being carried around in various places, there is a considerable possibility that they will be left behind or dropped and lost. For this reason, there is a possibility that a malicious finder may use the information illegally, or the information such as the destination telephone number stored in a memory such as a telephone directory may be stolen.

[0003] Conventionally, in such a case, it has been possible to prevent unauthorized use by a malicious finder by contacting a mobile phone carrier and stopping the use of the line.
However, in order to prevent the information stored in the memory such as the telephone directory from being displayed, it is necessary to directly operate the mobile phone to set the function restrictions such as the operation restriction of the dial keys and the display restriction of the telephone directory. It is necessary, and in the case of loss or theft, it has been difficult to prevent a malicious finder from stealing information such as a destination telephone number stored in a memory such as a telephone directory.

To solve such a problem, for example, Japanese Unexamined Patent Application Publication No. 11-298600 discloses a method in which a call is made from another telephone to a lost portable telephone and the portable telephone is automatically answered. By transmitting a password and a predetermined control signal, the mobile phone verifies the password and receives a predetermined command signal, and remotely controls dial keys and restricts functions such as phonebook display. There is disclosed a mobile phone capable of performing the settings described above. According to such a mobile phone, a user who has lost the mobile phone can prevent unauthorized use and protect information stored in a memory such as a telephone directory by remote control from another telephone. However, in such a mobile phone, in order to set the function restriction, an operation of inputting a password or an operation of transmitting a predetermined control signal according to a certain procedure must be performed.
There is a problem that the user needs to memorize the personal identification number and a predetermined operation procedure, and the operation itself is troublesome.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in the event of loss or theft, the function of a portable telephone is restricted by a simple operation from another telephone. An object of the present invention is to provide a mobile phone device capable of preventing unauthorized use by a malicious finder and protecting information stored in a memory such as a telephone directory.

[0006]

The specific means for solving the above technical problems are as follows. That is, the mobile phone device according to claim 1, an identification information receiving unit that receives identification information of a caller when an incoming call is received, an identification information registration unit that registers specific identification information, and the identification information receiving unit. An identification information match determination unit that determines whether or not the identification information received by the unit matches the identification information registered in the identification information registration unit; and that the identification information matches in the identification information match determination unit. And a control unit for limiting the function when the set number of times is reached within the set time.

A portable telephone device according to a second aspect is characterized in that, in the configuration according to the first aspect, when the control unit restricts a function, the control unit also shifts to a power saving mode.

According to a third aspect of the present invention, in the configuration of the first or second aspect, when the control unit restricts a function, the control unit issues a call to the dial number of the identification information registered in the identification information registration unit. Call and send a confirmation message.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a portable telephone device 1 according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a mobile phone device 1 according to a first embodiment of the present invention.
FIG. 2 is a conceptual diagram showing a configuration of a telephone line between the portable telephone device 1 and a general fixed telephone 6. As shown in FIG. 2, the mobile phone 1
Is connected via a wireless line 2 to a base station 3 of a mobile phone operator, and this base station 3 is connected to a telephone station 5 via a telephone network 4.
The telephone station 5 and the fixed telephone 6 are connected via the service line 7, so that the mobile telephone device 1 and the fixed telephone 6 can communicate with each other. Less than,
The configuration of each unit of the mobile phone device 1 according to the present embodiment will be described with reference to FIG.

The antenna 8 is for transmitting and receiving high-frequency radio communication signals to and from the base station 3 (see FIG. 2). The high-frequency transmitting / receiving circuit 9 converts a wireless communication signal received by the antenna 8 into a baseband signal and outputs the baseband signal to the baseband processing circuit 10, and converts a baseband signal to be transmitted from the antenna 8 into a wireless communication signal. To the antenna 8. The baseband processing circuit 10 separates the received baseband signal into a call signal and a control signal, and outputs the call signal to the receiver 11 and the control signal to the control unit 13 via the identification information receiving unit 12, respectively. , And converts the call signal and the control signal from the transmitter 14 for transmission into a baseband signal and outputs the baseband signal to the high-frequency transmitting / receiving circuit 9. The receiver 11 converts the speech signal output from the baseband processing circuit 10 into a voice and outputs the voice. Transmitter 14
Converts the user's voice into a call signal and outputs it to the baseband processing circuit 10.

The identification information receiving section 12 comprises a processing circuit for receiving the identification information of the transmission source when there is an incoming call, and identifies the transmission source included in the control signal output from the baseband processing circuit 10. The information is extracted and the result is output to the control unit 13. Here, the identification information specifically corresponds to a dial number. Identification information registration unit 15
Comprises a storage device for registering specific identification information. The specific identification information registered in the identification information registration unit 15 is stored in a specific telephone set 16 (FIG. 5) used when the user of the mobile telephone apparatus 1 remotely controls the function of the mobile telephone apparatus 1 from another telephone set. 2), and specifically, the home telephone number of the user of the mobile phone device 1 and the like are registered. Here, the specific telephone 16
In the example shown in FIG. 2, a fixed telephone is used, but a mobile telephone may be used.

The control unit 13 has a CPU (Central Process
ng Unit: Central Processing Unit)
The operation of each section of the mobile phone 1 is controlled according to the control program stored in M18. The ROM 18 stores various programs for controlling the operation of the control unit 13. Here, an identification information match determination program 19,
A function restriction program 20 and a confirmation message sending program 21 are stored. Identification information match determination unit 2
2 includes an identification information match determination program 19 and a control unit 13 that operates according to the program. That is, when the identification information receiving unit 12 receives the identification information of the transmission source, the control unit 13 determines the identification information of the transmission source and the identification information registered in the identification information registration unit according to the identification information match determination program 19. To determine whether the identification information matches, and if the identification information matches,
The number of coincidence incoming calls n stored in the RAM 24 is increased by one. At this time, if the number of coincidence incoming calls n before increasing by 1 is “n = 0”, a start signal is output to the timer 25 to start the timer 25.

The RAM 24 stores the number of coincidence incoming calls n
And a storage device for temporarily storing the processing results and the like in the control unit 13. The timer 25 is started by a start signal from the control unit 13, measures a set time, and outputs a time lapse signal to the control unit 13 when the set time has elapsed. The set time of the timer 25 is determined by the user when the dial number 17 of the specific telephone 16 (see FIG.
Therefore, it is preferable that the time is slightly longer than the time required to make a call to the mobile phone device 1 a number of times N set in the function restriction program 20 described later.
If the set number N is three, it is preferable to set the time to about 30 to 60 seconds.

The function restriction program 20 receives the incoming call after the incoming call with the matching identification information. During the operation of the timer 25 started as described above, that is, within the time set by the timer 25, This is a program for controlling the control unit 13 so as to limit the function when the identification information matches in the match determination unit 22 for a set number N of times. The control operation based on the function restriction program 20 will be described later in detail with reference to a flowchart. Here, the functions of the mobile phone device 1 are restricted, for example, prohibition of outgoing calls, a memory 26 such as a telephone directory and a received call history.
The display of the contents stored in is performed. At this time, in order to allow a bona fide finder to easily contact the user of the mobile phone device 1, the identification information automatically registered in the identification information registration unit 15 by a certain key operation is displayed. The operation control is performed so as to call the dial number 17.
Therefore, when the function is restricted, a message indicating that the mobile phone device 1 has been lost and a method of a certain key operation for contacting the user are displayed on the liquid crystal display unit 27. As the fixed key operation for contacting the user, any key operation other than the key operation used for releasing the function restriction can be used, but in order to facilitate the operation,
For example, it is preferable to press the “# key”. The display displayed on the liquid crystal display unit 27 is, for example, "Please contact us if you have been picked up. If you press the # key, it will be automatically connected. Contact telephone number: OO-OOOO-OOOO" And so on.

The number of times N set in the function restriction program 20 is used when the user restricts the function of the portable telephone device 1 by remote control by calling from a specific telephone 16 (see FIG. 2). Specific phone 1
6 is the number of incoming calls from the dial number 17 and can be preset by the user. If the set number N is too small, the function may be restricted by a normal incoming call other than the function restriction. If the number N is too large, the calling operation by the user is troublesome. It is suitable. In the present embodiment, the function restriction program 20 controls the control unit 13 to stop supplying power from the battery 28 and shift to the power saving mode when restricting the function of the mobile phone device 1. Also do. The battery 28 supplies power to each unit of the mobile phone device 1. The function restriction can be released by inputting a personal identification number or the like.

When the function of the mobile phone 1 is restricted, the confirmation message sending program 21 restricts the dial number 17 of the identification information registered in the identification information registration section 15, ie, the function restriction of the mobile phone 1 by remote control. Dialing number 17 of a specific telephone set 16 used when performing
Is a program for controlling the control unit 13 so as to send out a predetermined confirmation message. The content of the confirmation message is a content that can indicate that the function of the mobile phone device 1 has been restricted, and is, for example, “function restricted mode has been set”. Thus, the user can confirm that the function of the mobile phone device 1 has been restricted. Further, as a method for the user to confirm that the function restriction of the mobile phone device 1 has been performed,
In addition to this, when the user calls the mobile phone device 1, the time from the incoming call to the answer is changed so that the user answers at a different time from that in the normal answering machine mode, and the answering message in the answering machine mode is changed. There are also methods such as changing.

The memory 26 is a storage device that stores a telephone directory 29 for registering a plurality of destination telephone numbers and names, a past incoming call history 30, and the like. The operation unit 31 includes various operation keys such as a dial key and a power key (see FIG. 2). The liquid crystal display 27 has a memory 26
Is a display device that displays various information such as the content stored in the storage device and the result of operating the operation keys.

Next, a control operation when the function of the portable telephone device 1 according to the first embodiment of the present invention is restricted will be described with reference to flowcharts shown in FIGS. The operation of each unit shown in these flowcharts is performed under the control of the control unit 13 based on various control programs stored in the ROM 18.

As shown in FIG. 3, first, it is determined whether there is an incoming call to the portable telephone device 1 (S1). If there is no incoming call (S1: NO), the process stands by. If there is an incoming call (S1: YES),
Next, it is determined whether or not the identification information of the transmission source received by the identification information receiving unit 12 matches the identification information registered in the identification information registration unit 15 (S2). The determination as to whether or not the identification information matches is performed by the identification information receiving unit 12.
, The identification information of the caller's telephone, and the specific identification information registered in the identification information registration unit 15, ie, used when the user of the mobile phone device 1 restricts the function. Specific telephone 1
6 (see FIG. 2) by determining in the identification information match determination section 22 whether or not the dial number 17 matches.

If the identification information does not match (S2: N
O) Since it can be determined that there is a normal incoming call, a normal response is made (S3). Specifically, the ringing tone from the time of the incoming call is continued and the called state is continued,
When the mobile phone device 1 is set to the answering machine mode, a response message is automatically sent out after a predetermined time has elapsed and a response message is sent. On the other hand, if the identification information matches (S2: YES), it is next determined whether or not the number n of matching incoming calls stored in the RAM 24 is "n = 0" (S4). If the number of coincident calls n is "n = 0" (S4: YES), the timer 25 is started (S5), and then the number of coincident calls n stored in the RAM 24 is increased by "n = n + 1". (S6). On the other hand, the number of matched incoming calls n
Is not "n = 0" (S4: NO), the process proceeds directly to S6 without activating the timer 25, and the RAM
24, the number of matched incoming calls n is incremented by one.
n + 1 "(S6).

When the timer 25 is started in step S5, as shown in the flowchart of FIG.
And independent processing independent of the flowchart shown in FIG. That is, when the timer 25 is started, it is determined whether or not the set time of the timer has elapsed (S11). If the set time of the timer 25 has not elapsed (S11: NO), the process stands by. On the other hand, when the set time of the timer 25 has elapsed (S11: YES), the operation of the timer 25 ends (S12). Then, the number of matching incoming calls n stored in the RAM 24 is reset to “0”, “n = 0”.
(S13). By performing such processing, if the number of incoming calls with matching identification information is not set N times within the set time, the number is reset to "0". It is possible to prevent the function from being restricted by an incoming call other than the restriction.

Returning to the description of the flowchart shown in FIG. 3, after the processing S6, it is determined whether or not the number n of coincident incoming calls matches the number N set in the function restriction program 20 (S7). Number of matched incoming calls n
Does not match the set number N (S7: N
O) Since it can be determined that there is no incoming call from the specific telephone 16 to the mobile phone device 1 within the set time by the set number N, a normal response is made (S3).

On the other hand, if the number n of coincident incoming calls coincides with the set number N (S7: YES), it is determined that there is an incoming call from the specific telephone 16 to the portable telephone device 1 by the set number N within the set time. Therefore, the function of the mobile phone device 1 is restricted (S8). This function restriction is performed as described above according to the function restriction program 20. Next, a call is made to the dial number 17 of the identification information registered in the identification information registration unit 15, and a predetermined confirmation message is transmitted (S9). The transmission of the confirmation message is performed as described above according to the confirmation message transmission program 21. Thereafter, the mode shifts to the power saving mode (S10), and the process ends.

Next, a mobile phone 1 according to a second embodiment of the present invention will be described. In the mobile phone device 1 according to the present embodiment, in the first embodiment, the determination of whether or not the identification information matches the set number of times within the set time is performed by the coincidence incoming number n stored in the RAM 24 and the timer 25. This determination is made by retrieving the source identification information 32 and the incoming call date and time 33 included in the incoming call history 30 stored in the memory 26. FIG. 5 is a block diagram showing a configuration of the mobile phone device 1 according to the second embodiment of the present invention. As shown in this figure, the mobile phone device 1 according to the present embodiment has:
It differs from the first embodiment in that it does not have a timer 25 and that the number of coincident calls n is not stored in the RAM 24. Hereinafter, the configuration of the mobile phone device 1 according to the present embodiment will be described with reference to this drawing, but since there are many portions common to the first embodiment, description of such portions will be omitted.

Incoming call history 3 stored in memory 26
0 is a history of incoming calls to the mobile phone device 1 up to that point, although the details are not described in detail in the first embodiment.
12:05 on March 3 を ○ ○ ○ 日 時 ダ イ ヤ ル ダ イ ヤ ル ダ イ ヤ ル ダ イ ヤ ル を 発 信 を を を を を を を を を を を 発 信It is configured to have. Here, the source identification information is specifically the dial number of the source telephone. In addition,
Normally, there is a certain limit to the number of incoming calls histories 30 stored in the memory 26. If the number exceeds the limit, oldest incoming histories 30 are deleted in order.

The identification information match determination section 22 is common to the first embodiment in that it is constituted by an identification information match determination program 19 and a control section 13 which operates in accordance with the program. Is the control unit 13
When the identification information of the transmission source is received by the identification information receiving unit 12, the identification information of the transmission source and the identification information registered in the identification information registration unit 15 in accordance with the identification information match determination program 19, that is, the specific A comparison is made with the dial number 17 of the telephone to determine whether the identification information matches. If the identification information matches, the operation is started according to the function restriction program 20.

When there is an incoming call whose identification information matches, the function restriction program 20 searches the incoming call history 30 stored in the memory 26 and matches the received call history 30 with the identification information registered in the identification information registration unit 15. The incoming call history 30 including the identification information 32 of the calling source to be transmitted
This is a program for determining whether or not there is, and controlling the control unit 13 so as to limit the function when there is such an incoming call history 30. The control operation based on the function restriction program 20 will be described later in detail with reference to a flowchart. Here, the set time in the function restriction program 20 is the timer 2 in the first embodiment.
Similarly to the setting time of No. 5, the time is set to be slightly longer than the time required to make a call by the set number N in the function restriction program 20. Further, the set number N and the contents of the function restriction are the same as in the first embodiment.

Next, a control operation when the function of the portable telephone device 1 according to the second embodiment of the present invention is restricted will be described with reference to a flowchart shown in FIG. The operation of each unit shown in these flowcharts is performed under the control of the control unit 13 based on various control programs stored in the ROM 18.

First, it is determined whether there is an incoming call to the portable telephone device 1 (S21). If there is no incoming call (S21: NO), the process stands by. If there is an incoming call (S21: YES), the incoming call history 30 for the incoming call is stored in the memory 26 (S2).
2). Thereafter, it is determined whether or not the identification information of the transmission source received by the identification information receiving unit 12 matches the identification information registered in the identification information registration unit 15 (S2).
3). The determination as to whether or not the identification information matches is made based on the identification information of the transmission source received by the identification information receiving unit 12, that is, the dial number of the telephone of the transmission source, and the specific identification registered in the identification information registration unit 15. The identification information matching determination unit 22 determines whether or not the information, that is, the dial number 17 of the specific telephone 16 (see FIG. 2) used when the user of the mobile phone device 1 restricts the function matches. Performed by

If the identification information does not match (S23:
NO), it can be determined that there has been a normal incoming call, so a normal response is made (S24). The mode of this normal response is the same as in the first embodiment. On the other hand, if the identification information matches (S23: YES), the incoming call history 30 stored in the memory 26 is searched, and the incoming call history 30 with the matching identification information is extracted (S25). At this time, extraction of the incoming call history 30 having the matching identification information is performed by extracting the source identification information 32 included in the incoming history 30, that is, the dial number of the source telephone and the specific identification registered in the identification information registration unit 15. This is performed by comparing the information, that is, the dial number 17 of the specific telephone set 16 used when the user of the mobile phone device 1 restricts the function, and extracting only the incoming call history 30 that matches them. In addition,
The incoming call history 30 extracted here is a history of incoming calls for which the identification information is determined to match in step S23, and the incoming call history 30 stored in the memory 26 in step S22 is also regarded as the newest incoming call history 30. Included in the extraction.

Next, it is determined whether or not the number of the extracted incoming histories 30 is equal to or greater than the number N set in the function restriction program 20 (S26). Extracted call history 3
If the number of 0s is equal to or less than the set number N (S26: N
O) Since it can be determined that there is no incoming call from the specific telephone set 16 to the mobile phone device 1 for the set number N, a normal response is made (S24). On the other hand, if the number of the extracted call histories 30 is equal to or more than the set number N (S26: YES), the elapsed time from the Nth newest call histories 30 extracted next is within the set time. It is determined whether or not (S27). Specifically, processing S2
5, from the incoming date and time 33 of the Nth newest incoming history 30 and the incoming date and time 33 of the newest incoming history 30, the elapsed time between these incoming calls is calculated, The determination is made based on whether or not the elapsed time is within the set time. If the elapsed time from the Nth newest incoming call history 30 extracted is not within the set time (S27: NO), the set number N of incoming calls from the specific telephone 16 to the mobile phone device 1 will be the set time. Since it can be determined that it is not within the range, a normal response is made (S24).

On the other hand, when the elapsed time from the Nth newest incoming call history 30 extracted is within the set time (S27: YES), the incoming call from the specific telephone set 16 to the portable telephone device 1 is set. Since it can be determined that the set number N has been reached within the time, the function of the mobile phone device 1 is restricted (S28). This function restriction is performed according to the function restriction program 20 in the same manner as in the first embodiment. Next, a call is made to the dial number 17 of the identification information registered in the identification information registration unit 15, and a predetermined confirmation message is transmitted (S29). The transmission of this confirmation message is performed in the same manner as in the first embodiment according to the confirmation message transmission program 21. Thereafter, the mode shifts to the power saving mode (S30), and the process ends.

[0033]

As described above, according to the first aspect of the present invention,
According to the mobile telephone device according to the present invention, when the mobile phone device is lost or stolen, the function of the mobile telephone device is performed only by a simple operation of calling the specific number of times from the specific identification information registered in the identification information registration unit, that is, the dial number. Because restrictions can be applied, the user can easily restrict the functions of the mobile phone device even if the user does not remember complicated operations and passwords, etc. And other information stored in the memory can be protected.

According to the portable telephone device according to the second aspect of the present invention, in addition to the above-described effects, when the function is restricted, the mode is shifted to the power saving mode, so that the user who has a good intention can give the user a good intention. It is possible to prevent a situation in which contact cannot be made due to running out of battery when trying to contact, and a situation in which it is not possible to immediately release the function restriction due to running out of battery when the user regains the mobile phone device. Can be prevented.

According to the portable telephone device of the third aspect of the present invention, in addition to the above-described effects, when the function is restricted, a call is made to the dial number of the identification information registered in the identification information registration unit and the call is confirmed. By transmitting the message, the user can easily confirm that the function of the mobile phone device has been restricted.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a mobile phone device according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a configuration of a telephone line between a mobile telephone device and a general fixed telephone.

FIG. 3 is a flowchart illustrating a control operation of the mobile phone device when limiting the function of the mobile phone device according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating a process related to a timer in a control operation of the mobile phone device when limiting a function of the mobile phone device according to the first embodiment of the present invention.

FIG. 5 is a block diagram illustrating a configuration of a mobile phone device according to a second embodiment of the present invention.

FIG. 6 is a flowchart illustrating a control operation of the mobile phone device in a case where functions of the mobile phone device according to the second embodiment of the present invention are restricted.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mobile telephone device 12 identification information receiving unit 13 control unit 15 identification information registration unit 16 specific telephone used when function restriction is performed 17 dial number of specific identification information 18 ROM 19 identification information coincidence determination program 20 function restriction program 21 Confirmation message sending program 22 Identification information match determination unit 25 Timer 26 Memory 30 Incoming history 32 Incoming source identification information in incoming history 33 Incoming date and time in incoming history

Claims (3)

[Claims] 1. An identification information receiving unit for receiving identification information of a caller when an incoming call is received, an identification information registration unit for registering specific identification information, and an identification information received by the identification information receiving unit. An identification information match determination unit that determines whether or not the identification information registered in the identification information registration unit matches, and the identification information matches in the identification information match determination unit for a set number of times within a set time And a control unit for restricting functions in the case. 2. The mobile phone device according to claim 1, wherein the control unit also performs a transition to a power saving mode when restricting a function. 3. The control unit according to claim 1, wherein, when function restriction is performed, a call is made to a dial number of the identification information registered in the identification information registration unit, and a confirmation message is transmitted. Mobile phone device.