JP2002159040A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal which can inform its location to a calling party and can acquire the relative position of portable terminals on the originating side and terminating side. SOLUTION: The portable terminal comprises a GPS receiving section (positional information acquiring section) 4, a display section 6, and a section 14 for setting whether positional information is attached to a signal being used for informing the originator number or not. A control section 2 displays positional information acquired at the positional information acquiring section 4 to the display section 6 and attaches the positional information to that signal at the time of calling if attachment of the positional information is set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal capable of acquiring its own position using a global positioning system (GPS) or the like.

[0002]

2. Description of the Related Art In recent years, a global positioning system (GPS:
obal positioning system) has become widely used, in addition to car navigation, mobile phones and PHS
(Personal Handyphone System) is being studied (Japanese Patent Application Laid-Open No. 11-186955,
138,961). According to these technologies, by knowing the current position of the mobile terminal, or by accessing an optimal base station based on the current position,
It is possible to establish a good communication state.

[0003]

However, in the case of the above-mentioned technology, the position of the user's own mobile phone can be known. Can not get the location of the mobile phone together. In particular, in the above-mentioned technology, it is not possible to acquire a relative position between callers (how far the caller is away from the callee), and the user needs to know the positional relationship with the other party during the call. Can not respond to

[0004] On the other hand, a function (caller ID notification) for informing the called terminal of the telephone number of the calling terminal is used as a service of the cellular phone. However, a technology for transmitting and receiving the caller ID notification signal by adding other information has not yet been reported.

[0005] The present invention solves the above-mentioned problems in a portable terminal, displays the position of the portable terminal, informs the call destination, and obtains the relative position between the calling side and the called side. The purpose is to provide a possible mobile terminal.

[0006]

In order to achieve the above-mentioned object, a portable terminal according to the present invention comprises a position information acquisition section, a display section, and a control section, wherein the control section is adapted to execute the position information acquisition section. The position information acquired by the unit is displayed on the display unit.

[0007] The portable terminal further comprises a setting unit for setting whether or not to add the location information to a signal used for caller ID notification. The unit adds the position information to the signal to make a call.

In the portable terminal, when a signal to which the location information is added is received from the calling portable terminal, the control unit of the called portable terminal transmits the received location information to the destination. The information is displayed on the display unit of the calling mobile terminal.

[0009] The control unit, the received position information,
It is preferable that a relative position between the calling side mobile terminal and the own mobile terminal is calculated based on the own position information and displayed on the display unit. The relative position is the position of the calling side mobile terminal with the origin of the position of the own mobile terminal as 2 points.
It is preferable to represent them on dimensional coordinates. It is preferable that the two-dimensional coordinates have east-west and north-south coordinate axes.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration block diagram showing an embodiment of the portable terminal 20 according to the present invention. The mobile terminal 20 includes a control unit 2 for controlling the whole, a GPS
A GPS receiving unit (position information acquiring unit) 4 for receiving a GPS signal via an antenna 4a, a display unit 6 including a liquid crystal screen or the like, a storage unit (memory) 8 for storing various data, and a radio (RF) antenna 10a A wireless transmission / reception unit 10 for transmitting / receiving a signal, a signal processing unit 12 for processing the signal, an input key (setting unit) 14, a codec 16, a speaker 16a for inputting / outputting an audio signal, and a microphone 16b.

Here, the GPS antenna 4a receives a GPS signal (radio wave) from one or more GPS satellites 1000,
The wireless antenna 10a transmits and receives a wireless signal to and from the base station 2000. Also, the control unit 2
PU (Central Processing Unit), ROM (Read Only Memory), RAM (Random A
ccess Memory). The CPU performs arithmetic processing according to a predetermined control program. The ROM stores the control program and control data, and the RAM temporarily reads and writes various data necessary for the arithmetic processing.

In the present invention, a caller ID notification service known as a mobile communication service is used, and a mobile terminal, a base station, and a base station are provided so that position information (described later) of the mobile terminal can be added to a signal used for the notification. It is assumed that the communication system is properly set.

Here, an outline of the caller ID notification will be described. First, the called mobile terminal receives a signal (message) "call setting" sent from the calling mobile terminal to the network. Next, the called-side mobile terminal reads out the data of “calling number” included in “call setting”. "Calling number" includes the display identifier, non-notification reason, caller ID (phone number)
Exists as information, and the display identifier stores whether the caller ID can be notified. As a result, the caller-side portable terminal displays the caller number or the reason for the non-report number.
In the present invention, the format (data format) of the above-mentioned "calling number" is changed, and the position information and the second display identifier indicating whether or not the position information notification is possible (additional setting) are set so as to be added to the calling number. ing. At this time, location information may be given in addition to the caller number, or location information may be given instead of the caller number (in this case, the caller number notification function is eliminated).

Next, the processing performed by the portable terminal of the present invention will be described with reference to FIGS. FIG. 2 shows a process performed by the calling mobile terminal, and FIG. 3 shows a process performed by the called mobile terminal.

In FIG. 2, the power of the portable terminal 20 is turned on.
Then, the GPS receiving unit 4 receives a GPS signal (a radio wave from a GPS satellite) via the GPS antenna 4a (step S100). In this case, usually, radio waves from four or more satellites are received. Control unit 2
Measures and acquires the position information of the portable terminal (self) based on the difference between the arrival times of the received radio waves from each satellite (step S110). As a method of measuring the position information, a method usually performed in the GPS system may be adopted. The position information includes latitude, longitude, altitude, and the like. Then, the control unit 2 stores the measured (acquired) position information in the memory 8 and displays the position information on the display unit 6 (step S12).
0, S130). Note that steps S100 to S130
This is performed at predetermined timings, and is updated to the latest position information each time.

Next, when a call request is issued from the portable terminal 20 to a predetermined call destination (step S140), the control unit 2
It is determined whether or not the setting for adding the position information to the above-mentioned caller ID notification signal is made (step S150). The additional setting of the position information is performed by the user selecting a predetermined input key 14, but the setting may be performed every time a call is made, or a default may be specified in advance. If "No" in step S150, a normal call is made (step S160). On the other hand, step S150
If the answer is "Yes", the control unit 2 reads out the latest position information stored in the memory 8 (step S170), and adds it to the caller number notification signal (calling number in the above-described call setting) to make a call. (Step S180).

Next, the processing in the called mobile terminal 20A will be described with reference to FIG. Hereinafter, the mobile terminal 20A
Are denoted by adding A to the reference numerals in FIG. First, the mobile terminal 20A is connected to the mobile terminal 2A.
A signal from 0 is received (step S300). The control unit 2A determines whether or not a signal (call setting) to which the location information of the calling mobile terminal has been added has been received (step S3).
10). In this determination, first, it is determined whether or not the call setting has been received. If the call setting has been received, the second display identifier in the calling number is read. If the additional setting has been made, step S310 is determined as "Yes". This determination is made, and if “No” in step S310, control unit 2A performs normal communication (call) without displaying the caller's position information on display unit 6A (step S320). ).

On the other hand, if “Yes” in step S310, control unit 2A adds the calling number (on the calling side).
The position information is read and obtained (step S330).
Further, control unit 2A reads the latest position information of its own stored in memory 8A (step S340), and calculates the relative position between the calling side and itself (step S350). The relative position includes a direction and a distance of the calling side as seen from the user, and these are obtained, for example, from a difference between the latitude and the longitude of the two. However, since the distance in the plane coordinate system is calculated from the difference between the latitude and the longitude, the distance may be converted into an actual distance on the earth (spherical surface) by a known method. Then, the control unit 2A causes the display unit 6A to display the relative position with its own position as the origin (step S360). Here, the own position information read in step S340 is:
As in steps S100 to S120 in FIG. 2, the information is updated to the latest one as appropriate, so that the calculation and display of the relative position in steps S350 and S360 may be newly performed accordingly. In this way, when the mobile terminal is moving during a call with the calling party, the display unit 6A displays the ever-changing relative position.

Next, FIG. 4 shows an example of a screen display on the display unit 6, 6A of each of the portable terminals 20, 20A in each of the above processing flows.

FIG. 4A shows a display screen 500 (corresponding to step S130 in FIG. 2) of the calling portable terminal 20. The display screen 500 displays the position information 500z together with the date information 500a and the time information 500b. The time information 500b may be the time when the position information was acquired from the GPS. Further, the position information 500z includes, for example, latitude and longitude (in the figure, “35 ° 40′00” north latitude,
"139 degrees 34 minutes 05 seconds east longitude").

FIG. 4 (2) shows a display screen 600 (corresponding to step S360 in FIG. 3) on the called mobile terminal 20A.
Is shown. The display screen 600 includes an origin 6 indicating its own position.
00a, the relative position 600b of the calling side is displayed.
Here, both positions are coordinate axes 600 indicating the north-south direction.
c, displayed on two-dimensional coordinates consisting of a coordinate axis 600d indicating the east-west direction. In the lower part of the screen, the own position information 600z (of the called mobile terminal 20A) is displayed.
In this example, the calling side displays "154 m east" and "1852 m south" from the calling side as the distance between the calling side and the calling side. This value is obtained by appropriately multiplying the difference value between the latitude and the longitude by a conversion coefficient to the spherical system.

[0022]

As described above, according to the present invention,
By using the caller ID notification signal, it is possible to easily notify the location information of the own mobile terminal to the mobile phone of the call destination, and no new device or the like is required by the mobile terminal or the communication system. There are advantages.

Further, based on the position notified from the calling side portable terminal and the position of the own portable terminal, the relative position between the communicating terminals can be acquired, and the calling side can be located in any direction from the called side. Information such as how far away can be presented to the user.

Further, when the relative position of the called side is displayed on two-dimensional coordinates with the position of the user being the origin, it is easy for the user to visually recognize the relative position, and that the position of the user changes every moment. However, it is easy to grasp the change in the relative position that accompanies it.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a mobile terminal according to the present invention.

FIG. 2 is a diagram showing a processing flow in a calling side mobile terminal.

FIG. 3 is a diagram showing a processing flow in a called portable terminal.

FIG. 4 is a diagram showing an example of a screen display on a display unit of the mobile terminal.

[Explanation of symbols]

2, 2A control unit 4 GPS reception unit (position information acquisition unit) 6, 6A display unit 8, 8A storage unit (memory) 14 input key (setting unit) 20, 20A mobile terminal

Claims (6)

[Claims] 1. A portable terminal comprising: a position information acquisition unit; a display unit; and a control unit, wherein the control unit causes the display unit to display the position information acquired by the position information acquisition unit. . 2. A control unit, further comprising: a setting unit for setting whether or not to add the position information to a signal used for notification of a caller ID, wherein the setting unit adds the position information, The mobile terminal according to claim 1, wherein the call is made by adding the position information to the signal. 3. When a signal to which the location information is added is received from a calling side mobile terminal, the control unit in the called side mobile terminal transmits the received position information to the called side mobile terminal. The portable terminal according to claim 2, wherein the portable terminal is displayed on a display unit. 4. The control unit calculates a relative position between the calling side mobile terminal and the own mobile terminal based on the received position information and the own position information and causes the display unit to display the relative position. The mobile terminal according to claim 3, wherein: 5. The portable device according to claim 4, wherein the relative position is obtained by expressing a position of the calling side portable terminal on a two-dimensional coordinate with the position of the own portable terminal as an origin. Terminal. 6. The mobile terminal according to claim 5, wherein the two-dimensional coordinates have east-west and north-south coordinate axes.