JP3541719B2 - Mobile terminal system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable terminal system, and more particularly to a portable terminal system having a function of preventing the portable terminal from being stolen or misplaced.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a method using a small wireless device as a method for preventing theft or misplacement of a portable terminal device such as a mobile phone or a PHS. For example, a small wireless device is carried together with a mobile phone, and when the mobile phone cannot receive radio waves registered in the wireless device, an alarm sound is generated to notify the owner of the theft or the like.
[0003]
[Problems to be solved by the invention]
However, in a conventional system using such a small wireless device, since only a radio wave state is detected and an alarm sound is generated, when the portable terminal is attached to the charger for charging, the small wireless device is not connected to the small wireless device. There has been a problem that the distance from the mobile terminal is increased and an alarm sound is generated erroneously. Also, for some reason, the small wireless device cannot detect the radio wave of the portable terminal, and an alarm sound may be generated even during a call. Therefore, in such a conventional system, there is a problem that the alarm device easily malfunctions and the usability is poor.
The present invention is intended to solve such a problem, and provides a portable terminal system capable of reducing malfunctions of an alarm device and reliably notifying the owner of theft or misplacement of the portable terminal as compared with the related art. The purpose is to:
[0004]
[Means for Solving the Problems]
In order to achieve such an object, a portable terminal system according to the present invention includes a portable terminal equipped with a driving battery and capable of wireless communication, and a portable terminal provided separately from the portable terminal and within a predetermined range. In a portable terminal system including the portable terminal and a small wireless device connected via radio waves, an alarm unit that performs a predetermined alarm operation when the connection of the radio wave between the portable terminal and the small wireless device is interrupted, A charging state detecting means for detecting whether or not the battery is being charged, and a stopping means for stopping an alarm operation by the alarm means when the charging state detecting means is detecting that the battery is being charged.
[0005]
Further, another portable terminal system according to the present invention includes a portable terminal equipped with a driving battery and capable of wireless communication, and a radio terminal provided separately from the portable terminal and communicating with the portable terminal within a predetermined range. A portable terminal system comprising a small wireless device connected via a wireless terminal, an alarm means for performing a predetermined alarm operation when radio wave connection between the portable terminal and the small wireless device is interrupted, and a line capture by the portable terminal. And a stop unit for stopping the alarm operation by the alarm unit when the line capture detection unit detects the line capture.
[0006]
On the other hand, the warning means may be a means for generating a warning sound.
Further, the alarm means may be mounted on both the portable terminal and the small wireless device, or at least one of them.
Further, the stopping means has timer means for measuring an elapsed time from the start of the call, and when a link cannot be established between the portable terminal and the small wireless device within a predetermined time after the end of the call, Means for operating the alarm means may be used.
Further, the small wireless device may be an IC tag.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing one embodiment of the present invention. As shown in the figure, the base station 1 is connected to the office line L and includes an antenna 2 for performing wireless communication with the portable terminal 21.
The mobile terminal 21 receives the call signal from the base station 1 and enables wireless communication, an antenna 13, a transmitting / receiving unit 14, a control circuit 15, an IDROM 16, a charging battery 17, and a charging state detection A circuit 18, a response key 19, and a transmission key 20 are provided.
The IC tag 12 includes an antenna 3 for receiving a radio wave emitted from the portable terminal 21, a receiving unit 4, a control circuit 5, an alarm device 11 (a signal generating unit 6, a sound generator 7), an IDROM 8, and a switch 9. , A timer 10 and a small wireless device. Its basic configuration is equivalent to the IC tag disclosed in Japanese Patent Application No. 11-53352, for example, and is slightly different in that it has a sounding body 7, a timer 10, and the like.
[0008]
In such a mobile terminal system according to the present embodiment, when there is an incoming call from base line L to base station 1, a call signal is transmitted from base station 1 by antenna 2. When the transmitting / receiving unit 14 receives the call signal via the antenna 13, the portable terminal 21 determines whether the ID code included in the call signal matches the ID code stored in the ID ROM 16 of the user by the operation of the control circuit 15. Determine whether As a result, when they match, a ringing tone is generated by a signal generator and a sound generator (not shown) to notify the called party of the incoming call. Driving power is supplied to the transmission / reception unit 14 and the control circuit 15 by a battery 17 for charging. The state-of-charge detection circuit 18 is a means for detecting the state of charge of the battery 17, and the response key 19 and the transmission key 20 are push-button switches that enable incoming and outgoing calls when pressed.
[0009]
On the other hand, when the mobile terminal 21 is not in a call state, communication is constantly performed between the mobile terminal 21 and the IC tag 12. In the IC tag 12, a calling signal from the portable terminal 21 is received by the antenna 3 and input to the receiving unit 4. When the control circuit 5 determines that the ID code in the call signal received by the receiving unit 4 is equal to the ID code stored in the ID ROM 8, it determines that the link with the portable terminal 21 has been established. However, when the link is no longer established, the signal generator 8 is controlled to drive the sound generator 7 to generate an alarm sound. That is, the user carrying the IC tag 12 is notified of the misplacement of the portable terminal 21 by this alarm sound. At this time, when the user turns on the switch 9, the control circuit 15 detects this operation and controls the signal generation unit 8 to stop the alarm sound generated from the sounding body 7. However, the operation of the timer 10 instead of the switch 9 may be used to automatically stop after a lapse of a predetermined time from the generation of the alarm sound.
[0010]
Note that the sounding body 7 may be attached to the IC tag 12, may be attached to the portable terminal 21, may be attached to both the IC tag 12 and the portable terminal 21, or may have a detachable sounding body. The terminal 21 may be connected to an external terminal. When attaching to the IC tag 12, the radio wave generated from the portable terminal 21 is received by the IC tag 12 and the alarm device 11 is operated. When the portable terminal 21 is attached to the portable terminal 21, the portable terminal 21 receives the radio wave generated from the IC tag 12 and operates the alarm device 11. When the IC tag 12 and the portable terminal 21 are attached to both, the IC tag 12 and the portable terminal 21 detect radio waves from each other and operate the alarm device 11. When attaching to the external terminal of the portable terminal 21, a receiving unit is provided in advance on the detachable sounding body, and the receiving unit receives the radio wave from the IC tag 12 to operate the alarm device 11.
[0011]
Here, an outline of a procedure for automatically stopping the alarm device 11 will be described.
(1) When the mobile terminal 21 is connected to the charger When the mobile terminal 21 is connected to the charger, it is confirmed that the charging terminal on the charger side and the charging terminal on the mobile terminal are in contact with each other, If confirmed, the link established between the IC tag 12 and the portable terminal 21 is released, and the operation of the alarm device 11 is stopped. Transmission and response are possible even in the state of being connected to the charger, but in that case, the alarm device 11 is in a stopped state.
[0012]
(2) When the portable terminal 21 is detached from the charger When the portable terminal 21 is detached from the charger, it is determined on the portable terminal side that the charging terminal of the portable terminal 21 has been separated from the charging terminal of the charger. Confirm and send the information to IC tag 12. Then, the timer 10 starts time measurement, and automatically activates the alarm device 11 after a lapse of a predetermined time (this elapsed time is different from the time for generating an alarm sound after the end of the call). However, the activation of the alarm device 11 can be stopped by pressing the response key 19 (the transmission key 20 at the time of transmission) within a predetermined time after being removed from the charger. By returning the portable terminal 21 to the charger within a predetermined time after the end of the call, further generation of the alarm sound can be stopped.
[0013]
(3) When there is an incoming call during the operation of the alarm device 11,
If an incoming call is received during the operation of the alarm device 11, when the telephone call is established after the response key 19 is pressed, the alarm device 11 is automatically stopped. After the end of the call, the alarm device 11 is operated again, and if a link with the IC tag 12 cannot be established within a predetermined time, an alarm sound is generated.
[0014]
(4) When a calling operation is performed while the alarm device 11 is operating When a call is made, when the alarm device 11 is stopped, the transmission key 20 is pressed and then the dial is pressed. Then, after the call is established, the alarm device 11 is automatically stopped. However, if the alarm device 11 is activated after the end of the call and a link with the IC tag 12 cannot be established within a predetermined time, an alarm sound is generated. At this time, the timer 10 is used for time measurement.
[0015]
Next, details of the operation of the mobile terminal system according to FIG. 1 will be described separately for the mobile terminal side and the IC tag side.
FIG. 2 is a flowchart showing the operation of the mobile terminal according to FIG.
When the IC tag 12 and the portable terminal 21 are located within a predetermined range from each other, the alarm device 11 does not operate. Therefore, outgoing and incoming calls can be made normally.
[0016]
On the other hand, after the alarm device 11 operates, the following operation starts.
First, in step 101, the control circuit 15 in the portable terminal 21 determines whether or not the battery 17 is connected to a charger (not shown), and generates an alarm sound if connected to the charger. Since there is no need, a signal for stopping the operation of the alarm device 11 is transmitted, and then communication with the IC tag 12 is stopped (step 102).
[0017]
However, if it is not connected to the charger, it is determined whether a link with the IC tag 12 has been established (step 118). It is determined whether there is an incoming call or outgoing call, and the process proceeds to the sign (1) or (4).
[0018]
Next, in step 103, it is determined whether or not the portable terminal 21 has come off the charger, and if it has come off, the alarm device 11 is operated again (step 104). Thereafter, it is determined whether the transmission key 20 has been pressed (step 105). If the key has been pressed, the call processing is performed, the operation of the alarm device 11 is stopped (step 106), and the process stands by until the call ends (step 107). Thereafter, after the call is ended, the alarm device 11 is operated again (step 108), and the establishment state of the link with the IC tag 12 is determined (step 109). If the link is established, the operation of the alarm device 11 is stopped. Then, the process returns to step 101. However, if the link is not established in step 109, the operation of the alarm device 11 is started (step 116), and the establishment state of the link with the IC tag 12 is determined (step 117). The operation of the device 11 is stopped (Step 110).
[0019]
On the other hand, when it is determined in step 103 that the portable terminal 21 has not come off the charger, it is determined whether or not there is an incoming call (step 111). After the call is received, it is again determined whether or not the device has been disconnected from the charger (step 112). If the device has been disconnected from the charger, the operation of the alarm device 11 is started (step 113). Thereafter, it is determined whether the response key 19 has been pressed (step 114). If the response key 19 has been pressed, the process proceeds to symbol (1). If the key has not been pressed, it is determined whether or not the incoming call has stopped (step 115). If so, the process proceeds to the symbol (2), and if not stopped, the process returns to step 114.
[0020]
If it is determined in step 112 that the portable terminal 21 has not been removed from the charger, it is determined that the response key 19 has been pressed (step 122). If not, it is determined that the incoming call has stopped (step 121). ). If the button has been pressed, the call processing is performed (step 123), and the process stands by until the call ends (step 124). When the call ends, the process returns to step 103.
[0021]
Next, the operation of the IC tag 12 will be described.
FIG. 3 is a flowchart showing the operation of the IC tag according to FIG. Independently of the operation of the portable terminal 21 shown in FIG. 2, the IC tag 12 operates as follows.
First, in step 201, it is determined whether or not a communication stop request has been received from the mobile terminal 21, and if so, the function of the IC tag 12 is stopped (step 202). Thereafter, it is determined whether or not an operation request for the alarm device 11 has been received from the mobile terminal 21 (step 203). When the request has been received, it is determined whether or not a link with the IC tag 12 has been established (step 204). If the connection has been established, the process proceeds to the symbol (5), and if not, the process proceeds to the symbol (6).
[0022]
On the other hand, if the communication stop request has not been received in step 201, it is determined whether or not a link with the IC tag 12 has been established (step 205). If the link has been established, the process returns to step 201; The operation of the alarm device 11 is started (step 206), and it is determined again whether or not the link with the IC tag 12 is established (step 207). If the link is established, the operation of the alarm device 11 is stopped. (Step 208), and return to Step 201.
[0023]
In order to extend the time until the alarm sound is generated, a special key is input to the portable terminal 21 and the input content is transmitted to the IC tag 12 to change the set time of the timer 10 and extend the time. It can be possible. However, once the alarm device 11 is operated, it is preferable to return to the initial value.
[0024]
【The invention's effect】
As described above, the present invention provides an alarm unit that performs a predetermined alarm operation when radio wave connection between a portable terminal and a small wireless device is interrupted, a charging state detection unit that detects whether a battery is being charged, Stop means for stopping the alarm operation by the alarm means when the charging state detecting means detects that charging is in progress.
Therefore, the present invention has an effect that an alarm sound is not erroneously generated during charging of a portable terminal or during a call. Therefore, the alarm sound generation function is not always stopped due to fear of malfunction, the alarm sound can be generated only when necessary, and the portable terminal can be securely prevented from being left behind or stolen.
[Brief description of the drawings]
FIG. 1 is a block diagram showing one embodiment of the present invention.
FIG. 2 is a flowchart illustrating an operation of the mobile terminal according to FIG. 1;
FIG. 3 is a flowchart showing an operation of the IC tag according to FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base station, 2, 3, 13 ... Antenna, 4 ... Receiving part, 5, 15 ... Control circuit, 6 ... Signal generating part, 7 ... Sounding body, 8, 16 ... IDROM, 9 ... Switch, 10 ... Timer, 11 alarm device, 12 IC tag, 14 transmitting / receiving unit, 17 battery, 18 charging state detection circuit, 19 response key, 20 transmission key, 21 mobile terminal.

Claims (6)

A portable terminal including a driving battery and capable of wireless communication, and a small wireless device provided separately from the portable terminal and connected to the portable terminal via a radio wave within a predetermined range. In the system,
Alarm means for performing a predetermined alarm operation when radio wave connection between the portable terminal and the small wireless device is interrupted,
Charge state detection means for detecting whether the battery is charging,
A portable terminal system comprising: a stopping unit that stops an alarm operation by the alarm unit when the charging state detecting unit detects that charging is being performed. A portable terminal including a driving battery and capable of wireless communication, and a small wireless device provided separately from the portable terminal and connected to the portable terminal via a radio wave within a predetermined range. In the system,
Alarm means for performing a predetermined alarm operation when radio wave connection between the portable terminal and the small wireless device is interrupted,
Line capture detection means for detecting a line capture by the mobile terminal,
A portable terminal system comprising: a stop unit for stopping an alarm operation by the alarm unit when the line acquisition detection unit detects line acquisition. In claim 1 or 2,
The portable terminal system according to claim 1, wherein the alarm unit is a unit that generates an alarm sound. In claim 1 or 2,
The portable terminal system, wherein the alarm unit is mounted on both or at least one of the portable terminal and the small wireless device. In claim 2,
The stopping means includes timer means for measuring an elapsed time from the start of the call, and when the link between the portable terminal and the small wireless device cannot be established within a predetermined time after the end of the call, the alarm means A portable terminal system, characterized in that the portable terminal system is a means for operating a computer. In claim 1 or 2,
The portable terminal system, wherein the small wireless device is an IC tag.

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