JP3606397B2 - Mobile phone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile phone, and more particularly to a mobile phone having a predetermined additional service function.
This type of portable device is convenient to use because it has convenient functions such as automatic incoming calls in addition to basic functions for outgoing and incoming calls. However, in general, this type of portable device is small and lightweight, and there are many opportunities for loss due to misplacement or theft in order to be carried and used. Once lost, it is difficult to find. In addition, if it is lost, it may be illegally used by a third party, and an unexpected charge may be imposed on the authorized user. Therefore, it is desired to provide a mobile phone that can be easily detected when lost and can effectively prevent continued unauthorized use by a third party.
[0002]
[Prior art]
Conventionally, there is a mobile phone that can be used by inputting a password at power-on. In this case, for example, if a wrong password is entered three times in succession, the power is turned off. Therefore, only a regular user can use this portable device.
[0003]
[Problems to be solved by the invention]
However, if you misplace this type of mobile device, it is difficult to find it unless you remember where you left it. Even in the case of theft, if a third party learns that it cannot be used, it will be left as it is or after it is turned off. Therefore, it is difficult to find.
[0004]
An object of the present invention is to provide a mobile phone that is easy to find when lost and can effectively prevent continued unauthorized use by a third party.
[0005]
[Means for Solving the Problems]
The above problem is solved by the configuration of FIG. That is, the mobile phone according to the present invention (1) is a mobile phone having a predetermined additional service function, a memory for storing a predetermined dial number, and a request for input of a personal identification number when the additional service function is used. If the input of the personal identification number is incorrect , the dial number in the memory is read out, the automatic call is made to the called terminal, and the automatic call is made to notify the called terminal that the unauthorized use has been made when the call is allowed The automatic calling means performs automatic calling and unauthorized use notification to the called terminal in a normal standby display state .
[0006]
[Action]
The operation of the present invention will be described with reference to FIG. However, the present invention is not limited to this.
This portable device basically performs manual transmission by dial input from a console and input of a transmission key. When a user who listens to the call bell presses the incoming call key at the time of incoming call, it enters a call state (manual incoming call).
[0007]
Further, a memory for storing a predetermined dial number and a predetermined additional service function activated by key input are provided. When the additional service function is used, input of a personal identification number is required. Then, the automatic calling means activates the additional service function when the password is correctly entered, but when the password is entered incorrectly , the automatic calling means reads the memory dial number and automatically sends it to the called terminal. When a call is made and the call becomes available, the called terminal is notified of unauthorized use.
[0008]
According to the present invention (1), since at least the basic functions related to outgoing / incoming calls of the portable device can be used without requiring a password, there is little possibility that the portable device will be left with the power off. . Therefore, an opportunity to search for this machine is given.
In general, the additional service function is often used at times other than a telephone call, and therefore, it is possible to make a call without being noticed by an unauthorized user using this idle time.
[0009]
In this case, since the unauthorized user is notified of the unauthorized use, the authorized user can quickly know that the portable device has been lost. As a result, it is possible to notify the service center that it has been lost and to stop charging itself.
Preferably, the additional service function is, for example , an automatic incoming call service function that transitions to a call state without manual operation when an incoming call is received. Since the automatic incoming call service function is convenient, there is a high possibility that it will be used.
[0010]
In the present invention (1), the automatic calling means operates under a normal standby display state. Therefore, a call can be made without being noticed by an unauthorized user.
[0012]
Preferably, in the present invention ( 2 ), the memory stores an illegal flag that is set when an input of a password is incorrect, and the additional service function receives an incoming call when the illegal flag is set. In this case, the automatic incoming call service function that automatically transitions to a call state operates. Therefore, the call from the outside in this case is surely received.
[0013]
Preferably, in the present invention (3), the automatic calling means operates in a state where the reception path output to the speaker is muted. Therefore, there is no worry of receiving a notification of unauthorized use. In addition, a call can be connected for a long time without being noticed by an unauthorized user. Therefore, it is also possible to separately perform a reverse detection or the like to specify the wireless zone, and there is a high possibility that the portable device can be found.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Note that the same reference numerals denote the same or corresponding parts throughout the drawings.
FIG. 2 is a diagram showing the configuration of the mobile phone according to the embodiment. In the figure, 1 is a console unit, 11 is a microphone (MC), 12 is a speaker (SP), 13 is a display unit comprising a liquid crystal (LCD), an LED, and the like. , 14 is a keyboard unit including dial keys, function keys, and the like.
[0015]
Also, 3 is a call function unit, 31 is a mixing amplifier (MA), 32 is a power amplifier (PA), 33 and 34 are mute units composed of analog switches and the like, and 35 is a base for performing signal conversion between an analog signal and a digital signal. Band processing unit 36 is a codec (CODEC), 37 is a communication control unit that performs mobile communication control, 38 is a modulation unit, 39 is a transmission unit, 40 is a reception unit, 41 is a demodulation unit, 42 is a synthesizer unit, and 43 is The hybrid distributor (H) 44 is an antenna sharing unit, and 45 is an antenna.
[0016]
Here, the input line from the microphone 11 is referred to as a reception path, and the output line to the speaker 12 is referred to as a transmission path.
Further, 5 is a control unit that performs main control of the mobile phone, 51 is its CPU, 52 is a ROM that stores the control programs of FIGS. 3 to 5, and 53 is a RAM that is used as a data buffer or work area. , 54 is a non-volatile memory (EEPROM) for storing non-volatile variable information, 55 is a voice synthesizer for generating a voice message (may be a tone signal), and 56 is a code signal corresponding to the received DTMF tone signal. A DTMF tone decoding unit (DTMF) 57 for converting to, 57 is a common bus of the CPU 51.
[0017]
Here, the non-volatile variable information includes a general abbreviated dial and redial number, an automatic call dial number described later, an automatic call mode, an illegal flag, and other various setting parameters.
In this portable device, normal outgoing / incoming calls can be made freely, but if a certain service function (for example, automatic incoming call mode / normal incoming call mode) is to be used (or selected), a guard by a personal identification number is received. Hereinafter, an example operation will be described in detail.
[0018]
3 to 5 are flowcharts (1) to (3) of the communication control process according to the embodiment.
In FIG. 3, when the apparatus is turned on, an initial screen is displayed for a predetermined time (for example, 1 second) in step S1. In step S2, it is determined whether or not the automatic incoming call mode (= 1). If the automatic incoming call mode is not set (= 0), the normal incoming call mode is displayed in step S11 and the normal standby state is set. Although not shown, the standby display is displayed in the standby state.
[0019]
If the automatic call mode is determined in step S2, the automatic call mode is displayed in step S3. The incoming call mode may be displayed on the LCD or the LED. Further, in step S4, the passage of T seconds (for example, 5 seconds) is waited for, and within this time, in step S5, an input of a password for switching to the normal incoming mode is accepted.
[0020]
If the code number is input within T seconds, it is checked in step S6 whether the code numbers match. If they match, the fraud flag is reset in step S9. In step S10, the automatic call mode is reset, and in step S11, the normal call mode is displayed. After that, the normal standby state is established. If no password is entered during this period, an automatic incoming call waiting state is set after T seconds.
[0021]
The incoming mode can be switched even in the standby state. That is, if a function key (for example, “F91”) is input in the standby state, the process waits for an input of a personal identification number in step S21. In step S22, the personal identification number is inspected. If the personal identification number matches, the fraud flag is reset in step S25.
In step S26, a further key input (“0” or “1”) is awaited, and key input is determined in steps S27 and S28. When the key input = “0”, it means switching to the normal incoming call mode, and the process proceeds to step S10.
[0022]
If the key input = “1”, it means switching to the automatic incoming call mode, and the automatic incoming call mode is set in step S29. In step S30, an automatic incoming mode setting screen is displayed. In subsequent steps S31 and S32, the user can set a series of parameters related to the automatic incoming mode.
This parameter includes information such as whether or not a ringing ringing is ringing, the number of ringing rings until transition to automatic ringing, whether or not there is an incoming call display, and whether or not the incoming call lamp is blinking. Each setting data is stored in the EEPROM 54 and is retained even when the power is turned off. Eventually, when the setting end key is detected in step S32, the process proceeds to step S3, and the automatic incoming mode display is further performed for T seconds to enter the automatic incoming standby state.
[0023]
On the other hand, if the code numbers do not match in the determination in step S6, it is determined in step S7 whether or not it is the Nth time (for example, the third time). If it is not the Nth time, the counter is incremented by 1 in step S8, and the process returns to step S5. In this way, if the code number is re-entered and it is not matched even if it is entered N times, this is determined as unauthorized use by others. The flow proceeds to step S33, and an illegal flag is set. The same applies to step S23.
[0024]
In this case, standby display is performed in step S34. Therefore, the user does not notice that unauthorized use has been detected. Then, the flow proceeds to an automatic call process shown in FIG.
Before that, the normal call processing in FIG. 4A will be described.
When a dial is input in step S41 and a call key is pressed in step S42, a call is made to the called terminal in step S43. In step S44, a call connection is awaited. When a call connection is established, the reception path (switch 34) is turned on in step S45. In step S46, a call is displayed, and in step S47, a response (hook off) of the called terminal is awaited. During this time, the user can hear the ringback tone through the reception path.
[0025]
Eventually, if there is a response from the called terminal, in step S48, the transmission path (switch 33) is turned on, and a call state is established. In step S49, a call is displayed, and in step S50, the end of the call (any hook-on) is awaited. When the call ends, the transmission / reception path is turned off in step S51, and the call is disconnected (recovered) in step S52. And it will be in a standby state.
[0026]
In FIG. 4B, when the unauthorized use is detected, the automatic call processing is input from (1). In step S61, the automatic call dial number is read from the EEPROM 54, and in step S62, a call is made to the number. This number is the phone number of the authorized user and is registered in advance by the authorized user.
In step S63, the call connection is waited. When the call connection is established, the transmission path (switch 33) is turned on in step S64. The reason why the reception path (switch 34) is not turned on is that the unauthorized user is not aware of the automatic call. Therefore, the display during calling is not performed. In step S65, it is determined whether or not the called terminal is talking and whether or not the ringback tone has exceeded a predetermined number of times. If NO, it waits for a response from the called terminal in step S67.
[0027]
Eventually, when there is a response from the called terminal (for example, when the authorized user picks up the handset), in step S67, the speech synthesizer 55 is activated, and a predetermined synthesized speech message is mixed into the transmission path. This message includes an automatic call due to unauthorized use and, if necessary, an identification number (registered by an authorized user) of the machine.
In place of the synthesized voice message, a DTMF tone signal having a predetermined pattern may be mixed. This way the machine can be constructed at low cost.
[0028]
In step S68, it is determined whether or not a call is in progress. If the call is in progress, the process returns to step S67 to retransmit the synthesized voice message. Eventually, when the authorized user puts the handset, the transmission path is turned off in step S69. In step S70, the call is disconnected (recovered), and a standby state is entered.
If it is determined in step S65 that the call is in progress or timed out, the process proceeds to step S69 to enter a standby state. When the fraud flag = 1 and a predetermined time (for example, 1 to 3 hours) elapses, a timer (not shown) times out and is input again to the automatic call processing. Accordingly, the authorized user is surely notified of unauthorized use.
[0029]
Even if the fraud flag is not provided, the control can be configured so that a notice of fraudulent use reaches the authorized user at least once.
FIG. 5 shows the incoming call processing of this apparatus.
When there is an incoming call in the standby state of this unit, it is input to the incoming call process. In step S81, a response to the incoming call is made, and in step S82, the reception path is turned ON. In step S83, a ringing tone signal is generated and the speaker 12 is sounded.
[0030]
In step S84, the fraud flag is checked. If the fraud flag = 1, the process proceeds to step S86. That is, when the fraud flag = 1, the operation is performed in the automatic incoming call mode regardless of the operation mode of the apparatus. Therefore, even if an unauthorized user is away, the call is automatically received. In step S86, the number of ringing tones is counted. In step S87, when M times (for example, set to 3) are counted, the sending of the ringing tone is stopped in step S88.
[0031]
In step S89, the transmission path is turned on, and in step S90, a call is displayed and the call is in progress. There is no response from the microphone 11 when an unauthorized user is absent or does not notice an incoming call. The authorized user confirms this and can perform various remote controls by the DTMF tone signal.
For example, the reception path (switch 34) is turned OFF, and the call display is set to the standby display. As a result, this unit appears to be in a stand-by state, and the speaker 12 is muted. Since the subsequent DTMF tone signal is not heard, the subsequent remote control can be performed freely. On the other hand, if the transmission path is utilized, the authorized user can know the sound environment around the unit.
[0032]
If a legitimate user misplaces the unit, it may recall the misplaced location from the surrounding sound environment. Also, if this machine is stolen, you may be able to guess where it is from the surrounding sound environment. In this case, if a reverse detection can be requested separately from the station, at least the base station (wireless zone) connected to the present apparatus can be specified. Even if the machine moves, the destination zone of the machine can be specified using the function of moving during a call (handover) or location registration.
[0033]
In general, when performing reverse detection, it is necessary to connect the call for a relatively long time, but since the call is connected until the authorized user (caller) disconnects the call, this condition can be satisfied. . The same applies to the case where the authorized user becomes the called party in the automatic call processing in FIG.
The remote control using the DTMF tone signal may be performed individually using individual codes, but a plurality of controls may be performed simultaneously using a certain code. In this case, although not shown in the figure, preferably, the control code itself is used as a code number, and guarding is performed by a code number inspection. That is, remote control is performed if the passwords match, but remote control is not performed if they do not match. In this way, there is no concern that an unauthorized remote operation will be performed by a third party while the authorized user is using the machine.
[0034]
The remote control using the DTMF tone signal may be performed during the automatic call processing shown in FIG.
If the caller hangs up the receiver in step S91, the call is no longer in progress. In step S92, the transmission and reception paths are turned off, and in step S93, the call is restored. After that, it enters a standby state.
[0035]
If it is determined in step S84 that the fraud flag is not 1, it is determined in step S85 whether or not the automatic incoming call mode is set. If it is not the automatic incoming call mode, it waits for a hook-off (response) by the called party in step S94.
Therefore, the minimum necessary functions (calling / calling function) of this unit can be used normally regardless of regular use / unauthorized use, and it is possible to detect misplacement and to continue unauthorized use in case of theft. It can be effectively prevented.
[0036]
Although the above embodiment has been described with respect to a digital mobile phone, the present invention can also be applied to an analog mobile phone.
Needless to say, the mobile phone of the present invention includes a car phone, a personal handyphone system portable device (PHS), and the like.
In the above embodiment, the remote control is performed using the DTMF tone signal. However, the digital mobile phone may perform the remote control using a digital control signal.
[0037]
In the above embodiment, the password is guarded for the switching operation of the automatic call mode / normal call mode, but the guard for the activation (selection) of various other functions is guarded by the password. It is clear that it is also good.
In addition, although the preferred embodiments of the present invention have been described, it goes without saying that various changes in configuration and control can be made without departing from the spirit of the present invention.
[0038]
【The invention's effect】
As described above, according to the present invention, it is easy to find a portable device that has been misplaced, and it is possible to effectively prevent continued unauthorized use of the portable device by a third party.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating the principle of the present invention.
FIG. 2 is a diagram illustrating a configuration of a mobile phone according to an embodiment.
FIG. 3 is a flowchart (1) of a communication control process according to the embodiment.
FIG. 4 is a flowchart (2) of a communication control process according to the embodiment.
FIG. 5 is a flowchart (3) of a communication control process according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Console part 3 Call function part 5 Control part 11 Microphone 12 Speaker 45 Antenna

Claims (3)

In a mobile phone having a predetermined additional service function,
A memory for storing a predetermined dial number;
When the additional service function is used, a password is requested to be entered, and if the entered password is incorrect , the dial number in the memory is read out and an automatic call is made to the called terminal, allowing a call. Automatic calling means for notifying the called terminal of the unauthorized use by ,
The mobile phone according to claim 1, wherein the automatic calling means performs automatic calling and unauthorized use notification to the called terminal in a normal standby display state . The memory stores a fraud flag that is set when an input of a password is incorrect, and the additional service function automatically changes to a call state when there is an incoming call when the fraud flag is set. 2. The mobile phone according to claim 1, wherein the mobile phone operates according to a service function. 2. The mobile phone according to claim 1, wherein the automatic calling means operates in a state in which a reception path output to a speaker is muted.

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