JP2002223474A - Mobile communication unit, recording medium, and information deleting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile communication unit that copes with an area dependent information distribution service. SOLUTION: The mobile communication unit is provided with a storage section that stores position information indicating a position at which distribution information distributed through a communication network is received in cross-reference with the distribution information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a mobile communication device,
The present invention relates to a recording medium and an information erasing method. In particular, the present invention
The present invention relates to a mobile communication device for deleting distribution information distributed by area, a recording medium, and an information erasing method.

[0002]

2. Description of the Related Art In recent years, an area information distribution service for automatically distributing information having different contents for each area to a mobile communication device has been provided.

[0003]

The conventional mobile communication device does not have a sufficient function corresponding to such an area information distribution service.

[0004] Therefore, an object of the present invention is to provide a mobile communication device, a recording medium, and an information erasing method that can solve the above-mentioned problems. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous embodiments of the present invention.

[0005]

That is, according to a first aspect of the present invention, distribution information distributed via a communication network is stored with positional information indicating a received position in association with distribution information. A storage unit is provided. The information processing apparatus may further include a distribution information receiving unit that receives the distribution information, and a position information acquisition unit that acquires the position information when the distribution information receiving unit receives the distribution information.

[0006] The wireless communication apparatus further includes a communication unit that communicates with a wireless station capable of short-range communication. The position information acquisition unit receives wireless station identification information for identifying the wireless station as position information from the wireless station. The distribution information received by the information receiving unit may be stored in association with the wireless station identification information.

[0007] The position information acquisition unit is a GPS (Global).
The GPS information acquired using the Positioning System may be acquired as position information, and the storage unit may store the distribution information received by the distribution information receiving unit in association with the acquired position information.

The location information acquisition unit acquires location information based on a base station communicating with the mobile communication device, and the storage unit associates the distribution information received by the distribution information reception unit with the acquired location information. May be stored.

The mobile communication device is capable of communicating with a plurality of base stations, the position information obtaining section obtains position information based on the electric field strength of a radio wave received from each base station, and the storage section stores , The distribution information received by the distribution information receiving unit,
It may be stored in association with the acquired position information.

The location information acquisition section acquires base station information for identifying the base station as location information, and the storage section stores the distribution information received by the distribution information receiving section in association with the acquired base station information. You may.

[0011] The distribution information receiving unit receives the distribution information from the base station communicating with the mobile communication device, and the storage unit stores the distribution information received by the distribution information receiving unit with the position information acquired by the position information acquiring unit. May be stored in association with.

The distribution information receiving unit receives distribution information from a wireless station capable of short-range communication, and the storage unit stores the distribution information received by the distribution information receiving unit in accordance with the position information acquired by the position information acquiring unit. It may be stored together.

[0013] A current position judging unit for judging whether or not the mobile communication device has left a predetermined range including the position information acquired by the position information acquiring unit; And an erasing unit for erasing the distribution information when it is determined that the information has departed from the predetermined range.

[0014] The communication device further includes a communication unit that communicates with a wireless station capable of short-range communication, wherein the current position determination unit determines that the communication unit cannot communicate with a wireless station determined in advance based on position information. It may be determined that the mobile communication device has left a predetermined range including the position information.

[0015] The current position judging unit is a GPS (Global)
Using the Positioning System, it may be determined whether or not the mobile communication device has left a predetermined range including the position information acquired by the position information acquisition unit.

The present location judging section judges, based on a base station communicating with the mobile communication apparatus, whether or not the mobile communication apparatus has left a predetermined range including the position information obtained by the position information obtaining section. May be.

The mobile communication device is capable of communicating with a plurality of base stations, and the current position determining section determines whether the mobile communication device has acquired position information based on the electric field strength of a radio wave received from each base station. It may be determined whether the unit has left a predetermined range including the acquired position information.

The present location judging section judges whether or not the base station communicating with the mobile communication device is a base station other than a predetermined base station. When it is determined that the communicating base station is a base station other than the predetermined base station, the deleting unit may delete the distribution information.

The distribution information receiving unit further includes a time determination unit for determining whether a predetermined time has elapsed since the distribution information was received, and the time determination unit determines whether the distribution information reception unit received the distribution information. If it is determined that the predetermined time has elapsed since,
The current position determination unit may determine whether the mobile communication device has left a predetermined range including the position information acquired by the position information acquisition unit.

According to a second aspect of the present invention, there is provided a recording medium storing a program provided to a mobile communication device for receiving distribution information distributed via a communication network, wherein the program stores the distribution information. The mobile communication device includes a position information obtaining module that obtains position information indicating a position of the mobile communication device when receiving the information, and a distribution information management module that stores the obtained position information in association with the distribution information.
The program may be stored in the distribution information in order to provide the mobile communication device with the program by distributing the distribution information.

According to a third aspect of the present invention, there is provided an information erasing method for receiving distributed information and selectively erasing the information, the information including a position at which distribution information distributed via a communication network is received. When leaving the predetermined range, the distribution information is deleted.

Note that the above summary of the present invention does not list all of the necessary features of the present invention, and sub-combinations of these features may also constitute the present invention.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described through embodiments of the present invention. However, the following embodiments do not limit the claimed invention and have the features described in the embodiments. Not all combinations are essential to the solution of the invention.

(First Embodiment) FIG. 1 schematically shows a distribution information erasing system according to a first embodiment. This distribution information erasing system includes an information distribution device 20 and a radio station 4.
0, a radio station 42, and a mobile communication device 30.
The mobile communication device 30 transmits information from the information distribution device 20 to the wireless station 4.
0 and receives the distribution information, and stores the distribution information in association with the received position. When the user leaves a predetermined range including the position where the distribution information is received, the mobile communication device 30
Delete the distribution information. Mobile communication device 30 and radio station 40
Alternatively, the wireless station 42 can perform wireless communication in a short distance. Wireless communication in a short distance is performed using, for example, Bluetooth. When the wireless communication is performed using Bluetooth, for example, when the mobile communication device 30 is within a radius of 5 meters of the wireless station 40, the mobile communication device 3
0 communicates with the wireless station 40.

The information distribution device 20 includes a mobile communication device 30
To store the delivery information to be delivered. The distribution information is classified by radio station and stored in the information distribution device 20. Each piece of distribution information is information related to the vicinity of the associated wireless station. When communicating with the mobile communication device 30, the wireless station 40 extracts, from the information distribution device 20, distribution information associated with the wireless station 40 in the information distribution device 20, and extracts the extracted distribution information from the mobile communication device. 30.

The mobile communication device 30 stores distribution information in a database in association with the wireless station 40 that has distributed the distribution information. In addition, the mobile communication device 30 stores the wireless station identification information for identifying the wireless station 40 and the wireless station identification information for identifying a plurality of predetermined wireless stations in the database in association with the delivered distribution information. An example of the plurality of wireless stations is a wireless station around the wireless station. The mobile communication device 30 determines that a predetermined time has elapsed since the distribution information was stored, and that the radio station capable of communicating with the mobile communication device 30 is a radio station 4 whose radio station identification information is stored in the database.
If it is different from 0 and the predetermined plurality of radio stations, the distribution information is deleted from the database.

FIG. 2 is a block diagram showing a functional configuration of the mobile communication device 30. The mobile communication device 30 includes a communication unit 300, a distribution information reception unit 302, and a position information acquisition unit 3
04, a clock unit 305, a time determination unit 306, a current location determination unit 308, an erasure unit 310, and a distribution information database 320. The distribution information database 320 as an example of the storage unit stores the distribution information received from the wireless station 40 in association with the wireless station 40 that has distributed the distribution information.

The communication section 300 performs short-distance wireless communication with the wireless station 40. When the communication unit 300 can communicate with the wireless station 40, the distribution information receiving unit 302 receives the distribution information from the wireless station 40 via the communication unit 300. The position information acquisition unit 304 receives the wireless station 40 that has delivered the delivery information and the wireless station identification information that identifies the predetermined plurality of wireless stations from the wireless station 40 via the communication unit 300. When the distribution information receiving unit 302 receives the distribution information from the wireless station 40, the clock unit 305 receives, from the communication unit 300, reception information indicating that the distribution information has been received. The clock unit 305 sends the time at which the reception information was received from the communication unit 300 to the position information acquisition unit 304 as the reception time. The position information acquisition unit 304 sends the reception time received from the clock unit 305 and the wireless station identification information received from the wireless station 40 to the distribution information receiving unit 302. The distribution information receiving unit 302
The radio station identification information and the reception time received from the position information acquisition unit 304 are stored in the distribution information database 320 in association with the distribution information received from the radio station 40.

The clock unit 305 also has a function of sending the time to the time determination unit 306 at regular intervals. Time judgment unit 306
When the time is received from the clock unit 305, the reception time stored in the distribution information database 320 is subtracted from the received time, and if the subtracted time is not within a predetermined time range, the reception time The associated wireless station identification information is extracted from the distribution information database 320 and sent to the current location determination unit 308. Current location judgment unit 30
Numeral 8 receives wireless station identification information for identifying the wireless station 42 currently communicating with the wireless station 42 via the communication unit 300. If the received wireless station identification information is different from the wireless station identification information received from time determination section 306, current location determination section 308 sends the wireless station identification information received from time determination section 306 to erasing section 310. The erasing unit 310 includes the wireless station identification information received from the current location determination unit 308, the distribution information associated with the wireless station identification information received from the current location determination unit 308, and the wireless station identification information received from the current location determination unit 308. Is deleted from the distribution information database 320.

FIG. 3 shows an example of the data format of the distribution information database 320. The distribution information database 320 includes a distribution information field, a radio station identification information field, and a reception time field. The distribution information field stores the distribution information received by the distribution information receiving unit 302 from the wireless station 40. The wireless station identification information field stores wireless station identification information for identifying the wireless station 40 and wireless station identification information for identifying the predetermined plurality of wireless stations. When the communication unit 300 is communicating with a wireless station other than the wireless station indicated by the wireless station identification information stored in the wireless station identification information field, the erasing unit 310 performs the distribution associated with the wireless station identification information. Erase information. The predetermined plurality of wireless stations are, for example, wireless stations near the wireless station 40. In this case, if the user holding mobile communication device 30 moves a predetermined distance or more after receiving the distribution information, erasing section 310 deletes the received distribution information.

The reception time field stores the time at which the clock unit 305 received the reception information as the reception time. When the time determination unit 306 determines that the predetermined time has elapsed from the reception time, the deletion unit 310 deletes the distribution information associated with the reception time.

FIG. 4 is a flowchart showing the operation of mobile communication device 30 when the distribution information received from wireless station 40 is stored in distribution information database 320. The distribution information receiving unit 302 receives distribution information from the wireless station 40 via the communication unit 300 (S100). The clock unit 305
When the distribution information receiving unit 302 receives the distribution information, it measures the reception time at which the distribution information was received (S102). The position information acquisition unit 304 is a wireless station 4 with which the communication unit 300 is communicating.
Wireless station identification information for identifying a plurality of wireless stations, including 0, is received from the wireless station 40 (S104). Next, the distribution information receiving unit 302 stores the distribution information received from the wireless station 40 in the distribution information database 320 in association with the reception time measured by the clock unit 305 and the wireless station identification information received by the position information acquiring unit 304. (S106).

Here, position information acquiring section 304 according to the present embodiment communicates with wireless station 40 with which communication section 300 is communicating,
The wireless station identification information for identifying the predetermined plurality of wireless stations is received from the wireless station 40. Alternatively, as another example, the position information acquiring unit 304 includes only the information for identifying the wireless station 40. Is received from the wireless station 40 and the identified wireless station 4
The predetermined plurality of radio stations may be determined based on 0.

FIG. 5 is a flowchart showing the operation of the mobile communication device 30 when erasing the distribution information. The clock unit 305 measures the time, and sends the measured time to the time determination unit 306 at regular intervals (S200). Time judgment unit 30
No. 6 uses the time received from the clock unit 305 to determine whether or not a predetermined time has elapsed from the reception time stored in the distribution information database 320 (S202). When the time determination unit 306 determines that a predetermined time has elapsed from the reception time stored in the distribution information database 320, the wireless station identification information stored in association with the reception time is transmitted to the distribution information. It is extracted from the database 320 (S204). The current position determination unit 308 receives wireless station identification information for identifying the wireless station 42 with which the communication unit 300 can communicate at that time from the wireless station 42 (S206).

The current position determining unit 308 determines whether the wireless station identification information received from the wireless station 42 is included in the wireless station identification information extracted from the distribution information database 320 by the time determining unit 306 (S208). Current location judgment unit 30
8 when the time determination unit 306 determines that the wireless station identification information received from the wireless station 42 is not included in the wireless station identification information extracted from the distribution information database 320, the deleting unit 310 The distribution information associated with the extracted wireless station identification information is deleted (S210).

Since the radio station 40 may distribute information only on condition that it can communicate with the mobile communication device 30, the capacity of the distribution information stored in the mobile communication device 30 increases. On the other hand, when a predetermined time has elapsed after receiving the distribution information and communication is being performed with a radio station other than a predetermined radio station, the mobile communication device 30 Can be reduced.

FIG. 6 is a block diagram showing a hardware configuration of the mobile communication device 30. Mobile communication device 30
Are a CPU 700, a ROM 702, and a RAM 704
And a communication interface 706. CPU7
00 operates based on the programs stored in the ROM 702 and the RAM 704. Communication interface 7
06 communicates with the outside via the Internet 10.
Hard disk drive 710 as an example of a storage device
Stores setting information and a program for operating the CPU 700.

The floppy (registered trademark) disk drive 712 reads data or a program from the floppy disk 714 and provides the read data or program to the CPU 700. CD-R
The OM drive 716 reads data or a program from the CD-ROM 718 and provides it to the CPU 700. The communication interface 706 transmits and receives data by connecting to the Internet 10.

The software executed by the CPU 700 is:
It is stored in a recording medium such as a floppy disk 714 or a CD-ROM 718 and provided to the user. The software stored on the recording medium may be compressed or uncompressed. The software is installed on the hard disk drive 710 from the recording medium, and is stored in the RAM 704.
And executed by the CPU 700.

The software stored on the recording medium and provided, that is, the software installed on the hard disk drive 710, has a distribution information receiving module and a position information obtaining module as functional components.
Each of these modules works on the computer,
The processes performed by the PU 700 are the same as the functions and operations of the corresponding members in the ticket issuing server 20 according to the present embodiment, respectively, and thus description thereof will be omitted.

A floppy disk 714 or CD-ROM 718 as an example of a recording medium shown in FIG. 6 stores a part or all of the functions of the ticket issuing server 20 in all the embodiments described in the present application. can do.

These programs are stored directly in the recording medium.
The program may be read out to the AM and executed, or may be read out to the RAM and executed once after being installed in the hard disk drive. Further, the program may be stored on a single recording medium or a plurality of recording media. The modules stored in the recording medium may provide their respective functions in cooperation with the operating system. For example, the function may be requested to the operating system to perform a part or all of the function, and the function may be provided based on a response from the operating system.

As a recording medium, a floppy disk,
In addition to CD-ROM, optical recording media such as DVD, MD
, A magneto-optical recording medium such as a PD, a tape medium, a magnetic recording medium, and a semiconductor memory such as an IC card or a miniature card. Alternatively, a storage device such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium, and the program may be provided to the mobile communication device 30 via the communication network. Also, a program may be included in the distribution information and distributed together with the distribution information. Such a recording medium is stored in the mobile communication device 30.
It is obvious that such production and sale of such a recording medium constitutes infringement of a patent right based on the present application.

Mobile communication terminal 30 according to the present embodiment
Stores the distribution information in association with the wireless station. Alternatively, as another example, the distribution information may be stored in association with the mobile base station 50.

(Second Embodiment) FIG. 7 schematically shows a distribution information erasing system according to a second embodiment. In the distribution information erasing system according to the first embodiment, the mobile communication device 30
However, the mobile communication device 30 according to the present embodiment receives the distribution information from the information distribution device 20 via the mobile base station 50. The mobile communication device 30 according to the first embodiment, when the wireless station identification information of the communicating wireless station does not match the wireless station identification information associated with the distribution information, Has been deleted, but the mobile communication device 30 according to the present embodiment
Acquires GPS information of the mobile communication device 30 as position information using GPS, and deletes distribution information based on the acquired GPS information.

The distribution information erasing system according to the present embodiment includes an Internet 10, an information distribution device 20, a mobile communication device 30, a portable base station 50, and a GPS satellite 60.
And a wireless communication network 70. Mobile communication device 30
Receives the distribution information from the information distribution device 20 via the wireless communication network 70 and the mobile base station 50, and deletes the received distribution information based on the GPS information acquired from the GPS satellite 60.

FIG. 8 is a block diagram showing a functional configuration of mobile communication device 30 according to the present embodiment. Mobile communication device 30 according to the present embodiment is different from mobile communication device 30 according to the first embodiment in that communication device 300 is not provided.

The distribution information receiving section 302 is a portable base station 50
, And sends reception information indicating that the distribution information has been received to the position information acquisition unit 304 and the clock unit 305. When receiving the received information from the distribution information receiving unit 302, the position information acquiring unit 304 receives from the GPS satellites 60 GPS signals for calculating the distances to the plurality of GPS satellites 60. Next, the position information acquisition unit 304 receives the received GP
The position information of the mobile communication device 30 is calculated using the S signal. Further, the position information acquisition unit 304 determines a predetermined range including the position indicated by the calculated position information as position information. The clock unit 305 transmits the received information to the distribution information receiving unit 302.
, The received time is sent to the position information acquisition unit 304 as the reception time. The position information acquisition unit 304 sends the reception time received from the clock unit 305 and the determined position information to the distribution information reception unit 302. Distribution information receiving unit 3
02 stores the position information and the reception time received from the position information acquisition unit 304 in the distribution information database 320 in association with the distribution information received from the mobile base station 50.

The clock unit 305 sends the time to the time determination unit 306 at regular intervals. The time determination unit 306 determines the time
5, the reception time stored in the distribution information database 320 is subtracted from the received time, and if the subtracted time exceeds a predetermined time range, it is associated with the reception time. Location information that is present is extracted from the distribution information database 320 and sent to the current location determination unit 308. The current position determination unit 308 receives a GPS signal from the GPS satellite 60. The current location determination unit 308
Using the received GPS signal, the current mobile communication device 30
Is calculated, and the calculated position information is calculated by the time determination unit 3.
If the position information received from the time determination unit 306 is not within the range of the position information received from the
Send to The erasing unit 310 is associated with the position information received from the current position determining unit 308, the distribution information associated with the position information received from the current position determining unit 308, and the position information received from the current position determining unit 308. The reception time is deleted from the distribution information database 320.

FIG. 9 shows an example of the data format of the distribution information database 320 according to the present embodiment. The distribution information database 320 according to the present embodiment differs from the distribution information database 320 according to the first embodiment in that the distribution information database 320 includes a position information field and does not include a wireless station identification information field. The position information field stores a predetermined range including the position where the distribution information receiving unit 302 has received the distribution information. As a specific example, a range of latitude and longitude is specified. When the mobile communication device 30 leaves a predetermined range stored in the position information field, the distribution information associated with the position information is deleted. The predetermined range is
Stored using latitude and longitude.

FIG. 10 is a flowchart showing the operation of mobile communication device 30 when the distribution information received from portable base station 50 is stored in distribution information database 320.
The distribution information receiving unit 302 receives distribution information from the mobile base station 50 (S300). The clock unit 305 measures the reception time when the distribution information was received (S302). The position information acquisition unit 304 receives a GPS signal from the GPS satellite 60 (S304). Next, the position information acquisition unit 304 calculates the position information of the mobile communication device 30 using the received GPS signal, and determines a predetermined range including the calculated position information (S306). Next, the distribution information receiving unit 302
The distribution information received from the mobile base station 50 is stored in the distribution information database 320, in association with the reception time measured by the mobile station 05 and the position information determined by the position information acquisition unit 304 (S308).

FIG. 11 is a flowchart showing the operation of the mobile communication device 30 when deleting distribution information. The clock unit 305 measures the time, and sends the measured time to the time determination unit 306 at regular intervals (S400). Time judgment unit 3
06 uses the time received from the clock unit 305 to determine whether or not a predetermined time has elapsed from the reception time stored in the distribution information database 320 (S402). When the time determination unit 306 determines that a predetermined time has elapsed from the reception time stored in the distribution information database 320, the position information stored in association with the reception time is stored in the distribution information database 320. (S404). Current location determination unit 308
Receives the GPS signal from the GPS satellite 60 (S40)
6). Next, the current position determination unit 308 calculates position information indicating the current position of the mobile communication device 30 using the received GPS signal (S408).

The current position determining unit 308 determines whether the calculated position information is included in the range of the position information extracted from the distribution information database 320 by the time determining unit 306 (S410). If the position information calculated by the current position judging unit 308 is not included in the range of the position information extracted from the distribution information database 320 by the time judging unit 306, the erasing unit 310 sets the position extracted from the distribution information database 320. The distribution information associated with the information is deleted (S412).

The operation and configuration of the mobile communication device 30 according to the second embodiment other than the above are the same as the operation and configuration of the mobile communication device 30 according to the first embodiment. I do.

Mobile communication device 3 according to first embodiment
No. 0 receives the distribution information from the radio station 40 and stores the distribution information in the distribution information database 320 in association with the radio station 40 that distributed the distribution information. Mobile communication device 3
0 determines whether or not to delete the distribution information based on the wireless station with which communication is currently being performed. The mobile communication device 30 according to the second embodiment receives distribution information from the mobile base station 50, acquires position information using GPS, and associates the distribution information with the acquired position information to distribute the distribution information to a distribution information database. 3
20. In addition, the mobile communication device 30 acquires the current position information using the GPS, and determines whether to delete the distribution information based on the acquired position information.
Instead of these, a mobile communication device 30 as a modification will be described below.

Mobile communication device 30 according to first modification
Receives the distribution information from the radio station 40 and stores the distribution information in the distribution information database 320 in association with the radio station 40 that has distributed the distribution information. In addition, the mobile communication device 30
It is determined whether or not the distribution information is to be deleted based on the mobile base station 50 that is currently communicating. As a more specific example, the mobile communication device 30 includes a plurality of mobile base stations 50 that can currently communicate.
The current position information is acquired from the electric field strength of the radio wave received from the company, and it is determined whether to delete the distribution information based on the acquired position information.

Mobile communication device 30 according to second modification
Receives the distribution information from the radio station 40 and stores the distribution information in the distribution information database 320 in association with the radio station 40 that has distributed the distribution information. In addition, the mobile communication device 30
The current position information is acquired using GPS, and it is determined whether or not the distribution information is to be deleted based on the acquired position information.

Mobile communication device 30 according to third modification
Receives the distribution information from the wireless station 40 and stores the distribution information in the distribution information database 320 in association with the position information based on the mobile base station 50 that distributed the distribution information. In addition, the mobile communication device 30 determines whether to delete the distribution information based on the wireless station with which communication is currently being performed. in this case,
The mobile communication device 30 acquires the current position information from the electric field strengths of the radio waves received from the plurality of mobile base stations 50 that can currently communicate, and stores the distribution information in the distribution information database 320 in association with the acquired position information. Alternatively, the distribution information may be stored in the distribution information database 320 in association with the portable base station 50 with which communication is possible.

Mobile communication device 30 according to fourth modification
Receives the distribution information from the wireless station 40 and stores the distribution information in the distribution information database 320 in association with the position information based on the mobile base station 50 that distributed the distribution information. In addition, the mobile communication device 30 is a mobile base station 5 with which the mobile communication device 30 is currently communicating.
It is determined whether the distribution information is to be deleted based on 0.

Mobile communication device 30 according to fifth modification
Receives the distribution information from the wireless station 40 and stores the distribution information in the distribution information database 320 in association with the position information based on the mobile base station 50 that distributed the distribution information. In addition, the mobile communication device 30 acquires the current position information using the GPS, and determines whether to delete the distribution information based on the acquired position information.

Mobile communication device 30 according to sixth modification
Receives the distribution information from the wireless station 40, acquires the position information at which the distribution information is received by using the GPS, and associates the distribution information with the acquired position information to distribute the distribution information to the distribution information database 320.
To be stored. In addition, the mobile communication device 30 determines whether to delete the distribution information based on the wireless station with which communication is currently being performed.

Mobile communication apparatus 30 according to seventh modification
Receives the distribution information from the wireless station 40, acquires the position information at which the distribution information is received by using the GPS, and associates the distribution information with the acquired position information to distribute the distribution information to the distribution information database 320.
To be stored. In addition, the mobile communication device 30 determines whether to delete the distribution information based on the mobile base station 50 with which the mobile communication device 30 is currently communicating.

Mobile communication device 30 according to the eighth modification
Receives the distribution information from the wireless station 40, acquires the position information at which the distribution information is received by using the GPS, and associates the distribution information with the acquired position information to distribute the distribution information to the distribution information database 320.
To be stored. In addition, the mobile communication device 30 acquires the current position information using the GPS, and determines whether to delete the distribution information based on the acquired position information.

Mobile communication apparatus 30 according to ninth modification
Receives the distribution information from the mobile base station 50 and stores the distribution information in the distribution information database 320 in association with the communicable wireless station 40 when the distribution information is distributed. In addition, the mobile communication device 30 determines whether to delete the distribution information based on the wireless station with which communication is currently being performed.

Mobile communication apparatus 30 according to tenth modification
Receives the distribution information from the mobile base station 50 and stores the distribution information in the distribution information database 320 in association with the communicable wireless station 40 when the distribution information is distributed. Further, the mobile communication device 30 is connected to the mobile base station 50 which is currently communicating.
It is determined whether or not the distribution information is to be deleted based on the information.

Mobile communication device 30 according to the eleventh modification
Receives the distribution information from the mobile base station 50 and stores the distribution information in the distribution information database 320 in association with the communicable wireless station 40 when the distribution information is distributed. In addition, the mobile communication device 30 acquires the current position information using the GPS, and determines whether to delete the distribution information based on the acquired position information.

Mobile communication apparatus 30 according to twelfth modification
Receives the distribution information from the mobile base station 50 and stores the distribution information in the distribution information database 320 in association with the position information based on the mobile base station 50 that distributed the distribution information.
In addition, the mobile communication device 30 determines whether to delete the distribution information based on the wireless station with which communication is currently being performed.

Mobile communication device 30 according to the thirteenth modification
Receives the distribution information from the mobile base station 50 and stores the distribution information in the distribution information database 320 in association with the position information based on the mobile base station 50 that distributed the distribution information.
In addition, the mobile communication device 30 determines whether to delete the distribution information based on the mobile base station 50 with which the mobile communication device 30 is currently communicating.

Mobile communication apparatus 30 according to a fourteenth modification
Receives the distribution information from the mobile base station 50 and stores the distribution information in the distribution information database 320 in association with the position information based on the mobile base station 50 that distributed the distribution information.
In addition, the mobile communication device 30 acquires the current position information using the GPS, and determines whether to delete the distribution information based on the acquired position information.

The mobile communication device 30 according to the fifteenth modification example
Receives the distribution information from the mobile base station 50, acquires the position information at which the distribution information is received by using the GPS, and associates the distribution information with the acquired position information to distribute the distribution information to the distribution information database 3.
20. In addition, the mobile communication device 30 determines whether to delete the distribution information based on the wireless station with which communication is currently being performed.

Mobile communication apparatus 30 according to the sixteenth modification
Receives the distribution information from the mobile base station 50, acquires the position information at which the distribution information is received by using the GPS, and associates the distribution information with the acquired position information to distribute the distribution information to the distribution information database 3.
20. In addition, the mobile communication device 30 determines whether to delete the distribution information based on the mobile base station 50 with which the mobile communication device 30 is currently communicating.

As described above, the present invention has been described using the embodiments. However, the technical scope of the present invention is not limited to the scope described in the above embodiments. Various changes or improvements can be added to the above embodiment. It should be noted that such modified or improved embodiments may be included in the technical scope of the present invention.
It is clear from the description of the claims.

[0073]

As is apparent from the above description, according to the present invention, it is possible to provide a mobile communication device compatible with an area-based information distribution service.

[Brief description of the drawings]

FIG. 1 is a diagram schematically illustrating a distribution information erasing system according to a first embodiment.

FIG. 2 is a block diagram showing a functional configuration of a mobile communication device 30.

FIG. 3 is a diagram showing an example of a data format of a distribution information database 320.

4 is a flowchart showing an operation of the mobile communication device 30 when storing distribution information received from the wireless station 40 in a distribution information database 320. FIG.

FIG. 5 is a flowchart showing an operation of the mobile communication device 30 when deleting distribution information.

FIG. 6 is a block diagram illustrating a hardware configuration of the mobile communication device 30.

FIG. 7 is a diagram schematically illustrating a distribution information erasing system according to a second embodiment;

FIG. 8 is a block diagram illustrating a functional configuration of a mobile communication device 30 according to a second embodiment.

FIG. 9 is a diagram illustrating an example of a data format of a distribution information database 320 according to the second embodiment.

FIG. 10 is a flowchart showing an operation of the mobile communication device 30 when storing distribution information received from the mobile base station 50 in the distribution information database 320.

FIG. 11 shows a mobile communication device 30 when erasing distribution information.
6 is a flowchart showing the operation of the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Internet 20 Information distribution device 30 Mobile communication device 40 Radio station 42 Radio station 70 Radio communication network 300 Communication unit 302 Distribution information receiving unit 304 Location information acquisition unit 305 Clock unit 306 Time judgment unit 308 Current location judgment unit 310 Erasure unit 320 Distribution Information database 700 CPU 702 ROM 704 RAM 706 Communication interface 710 Hard disk drive 712 Floppy disk drive 714 Floppy disk 716 CD-ROM drive 718 CD-ROM

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kou Aosaki 3-1-146 Izumi, Asaka-shi, Saitama Prefecture Inside Fujisha Shin Film Co., Ltd. (72) Yasuhiro Shinkai 3-11-46 Izumi, Asaka-shi, Saitama Fujisha Shin Film Co., Ltd. F term (reference) 5K067 DD19 DD30 DD43 DD44 EE02 EE10 EE24 EE35 FF03 FF05 FF06 HH23 JJ52 JJ56 KK15

Claims (19)

[Claims] 1. Delivery information distributed via a communication network,
A mobile communication device comprising: a storage unit that stores the distribution information in association with position information indicating a position where the distribution information is received. 2. The apparatus according to claim 1, further comprising: a distribution information receiving unit that receives the distribution information; and a position information acquiring unit that acquires the position information when the distribution information receiving unit receives the distribution information. The mobile communication device according to claim 1. 3. A communication unit for communicating with a wireless station capable of short-range communication, wherein the position information obtaining unit receives wireless station identification information for identifying the wireless station as the position information from the wireless station. The mobile communication device according to claim 2, wherein the storage unit stores the distribution information received by the distribution information receiving unit in association with the wireless station identification information. 4. The method according to claim 1, wherein the position information acquiring unit is a GPS (Glo).
bal positioning system), and the storage unit stores the distribution information received by the distribution information receiving unit in association with the GPS information. The mobile communication device according to claim 2. 5. The location information acquisition section acquires the location information based on a base station communicating with the mobile communication device, and the storage section stores the distribution information received by the distribution information receiving section, The mobile communication device according to claim 2, wherein the mobile communication device is stored in association with the acquired position information. 6. The mobile communication device is capable of communicating with a plurality of the base stations, and the position information obtaining unit is configured to store the position information based on an electric field strength of a radio wave received from each of the base stations. The mobile communication device according to claim 5, wherein the storage unit stores the distribution information received by the distribution information receiving unit in association with the acquired position information. 7. The location information acquisition section acquires base station information for identifying the base station as the location information, and the storage section acquires the distribution information received by the distribution information receiving section. The mobile communication device according to claim 5, wherein the mobile communication device is stored in association with base station information. 8. The distribution information receiving unit receives the distribution information from a base station communicating with the mobile communication device, and the storage unit stores the distribution information received by the distribution information receiving unit in the location information. The mobile communication device according to claim 2, wherein the information is stored in association with the position information acquired by an information acquisition unit. 9. The distribution information receiving unit receives the distribution information from a wireless station capable of short-range communication, and the storage unit acquires the distribution information received by the distribution information receiving unit from the position information acquisition unit. The mobile communication device according to any one of claims 2 to 7, wherein the mobile communication device stores the position information in association with the position information acquired by the unit. 10. A current position determining unit that determines whether or not the mobile communication device has left a predetermined range including the position information acquired by the position information acquiring unit; The mobile communication according to any one of claims 2 to 9, further comprising: an erasing unit that erases the distribution information when the communication device determines that the communication device has left a predetermined range including the position information. apparatus. 11. A communication unit that communicates with a wireless station capable of short-range communication, wherein the current location determination unit cannot communicate with a wireless station predetermined based on the position information. 11. The mobile communication device according to claim 10, wherein the mobile communication device determines that the mobile communication device has left a predetermined range including the position information. 12. The current location determination unit may be a GPS (Glo).
11. The mobile communication device according to claim 10, wherein the mobile communication device determines whether or not the mobile communication device has left a predetermined range including the position information obtained by the position information obtaining unit, using a bal Positioning System. Mobile communication device. 13. The current location determination unit, based on a base station communicating with the mobile communication device, causes the mobile communication device to move away from a predetermined range including the location information acquired by the location information acquisition unit. The mobile communication device according to claim 10, wherein it is determined whether or not the mobile communication device has been activated. 14. The mobile communication device is capable of communicating with a plurality of the base stations, and the current location determining unit determines whether the mobile communication device is based on the electric field strength of a radio wave received from each base station. 14. The mobile communication device according to claim 13, wherein it is determined whether or not a predetermined range including the position information acquired by the position information acquisition unit has been left. 15. The current location determining unit determines whether the base station communicating with the mobile communication device is a base station other than a predetermined base station, and the current location determining unit determines The erasing unit erases the distribution information when it is determined that the base station communicating with a mobile communication device is a base station other than the predetermined base station. A mobile communication device according to claim 1. 16. The system according to claim 16, further comprising a time determining unit configured to determine whether a predetermined time has elapsed since the distribution information receiving unit received the distribution information. When determining that a predetermined time has elapsed after receiving the information, the current location determination unit determines whether the mobile communication device has left a predetermined range including the position information acquired by the position information acquisition unit. The mobile communication device according to claim 10, wherein it is determined whether or not the mobile communication device is a mobile communication device. 17. A recording medium storing a program provided to a mobile communication device that receives distribution information distributed via a communication network, wherein the program stores the distribution information in the mobile communication device. A position information acquisition module that acquires position information indicating the position of the mobile communication device when received, and a distribution information management module that stores the acquired position information in association with the distribution information. Recording medium. 18. The recording medium according to claim 17, wherein the program is stored in the distribution information so as to provide the program to the mobile communication device by distributing the distribution information. 19. An information erasing method for receiving distributed information and selectively erasing the information, the method comprising: distributing distribution information distributed via a communication network when the information departs from a predetermined range including a position where the information is received. Erasing the distribution information.