WO2004057904A1 - Systeme de restitution, programme pour ledit systeme, et procede de commande dudit systeme - Google Patents

Systeme de restitution, programme pour ledit systeme, et procede de commande dudit systeme Download PDF

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Publication number
WO2004057904A1
WO2004057904A1 PCT/JP2002/013335 JP0213335W WO2004057904A1 WO 2004057904 A1 WO2004057904 A1 WO 2004057904A1 JP 0213335 W JP0213335 W JP 0213335W WO 2004057904 A1 WO2004057904 A1 WO 2004057904A1
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WO
WIPO (PCT)
Prior art keywords
information
partial information
partial
terminal
unit
Prior art date
Application number
PCT/JP2002/013335
Other languages
English (en)
Japanese (ja)
Inventor
Tatsuya Honmaru
Shigeaki Nakata
Original Assignee
Jicoux Datasystems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jicoux Datasystems, Inc. filed Critical Jicoux Datasystems, Inc.
Priority to AU2002357629A priority Critical patent/AU2002357629A1/en
Priority to JP2004561999A priority patent/JPWO2004057904A1/ja
Priority to PCT/JP2002/013335 priority patent/WO2004057904A1/fr
Publication of WO2004057904A1 publication Critical patent/WO2004057904A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences

Definitions

  • the present invention relates to a distribution device, a program for the distribution device, and a control method of the distribution device.
  • a method of acquiring map information or the like from a CD-ROM, a DVD or the like mounted on an individual vehicle is mainly used.
  • a method of acquiring local information including map information by wireless communication and displaying the information on a dripper or the like is expected.
  • an object of the present invention is to solve such a problem. Disclosure of the invention
  • a distribution device that distributes regional information to a terminal, wherein the regional information storage unit that stores regional information, and the terminal obtains A position information receiving unit that receives position information indicating the position of the terminal; a partial information selection unit that selects partial information that is a part of the regional information, including the position of the terminal;
  • the partial information is written, a partial information storage unit that can be accessed faster than the local information storage unit, an acquisition request receiving unit that receives a request for acquiring the partial information from the terminal, and the one partial information includes: When the partial information is stored in the partial information storage unit, the one partial information is read from the partial information storage unit; A partial information reading unit that reads, from the local information storage unit, a part corresponding to the one partial information in the regional information as the one partial information when the partial information is not stored in the minute information storage unit;
  • a distribution device comprising: a partial information transmission unit configured to transmit the one piece of partial information read by the reading unit to
  • a moving direction calculating unit configured to calculate a moving direction of the terminal based on the plurality of pieces of position information obtained by the terminal at different times, wherein the partial information selecting unit includes: It is also possible to select the partial information corresponding to the area in which it is located.
  • a moving speed calculating unit that calculates a moving speed of the terminal based on the plurality of pieces of position information acquired by the terminal at different times; ! / In this case, compared with the case where the moving speed is equal to or lower than the reference speed, the partial information corresponding to a region farther than the terminal is located may be selected in the region information.
  • the partial information selection unit is configured to, based on the plurality of pieces of position information received from the plurality of terminals, respectively, in the area information, the part corresponding to an area where the density of the plurality of terminals is greater than a reference density. Information may be selected.
  • a history calculation unit that calculates a history of the distribution of the plurality of terminals
  • the partial information selection unit the history calculation unit
  • the partial information to be stored in the partial information storage unit may be selected based on the calculated history of the distribution of the plurality of terminals.
  • the apparatus further includes a destination receiving unit that receives information indicating a destination from the terminal, wherein the partial information selecting unit corresponds to an area in the area information that passes when the terminal moves to the destination.
  • the partial information may be selected.
  • the apparatus further includes a destination specification information receiving unit that receives information indicating that a destination has not been specified from the terminal, and when the terminal has not specified a destination, the partial information selecting unit includes: In the area information, the partial information corresponding to an area where the terminal is located may be selected.
  • the respective moving speeds of the plurality of terminals are calculated.
  • the partial information selecting unit wherein the partial information selecting unit selects the partial information corresponding to an area in which the terminal whose moving speed is lower than a reference value is located among the plurality of terminals in the area information. You may.
  • the acquisition request includes information designating a file format of an image of the one piece of partial information
  • the partial information transmitting unit transmits the one piece of partial information read by the partial information reading unit to the acquisition request. May be converted into the designated file format designated by the above and transmitted to the one terminal.
  • the partial information storage ⁇ further stores the one partial information read from the local information storage unit and converted to the designated file format by the partial information transmission unit,
  • the partial information transmission unit is read by the partial information reading unit when the file format specified by the acquisition request is the specified file format. Transmitting the one piece of partial information to the other terminal, and when the file format specified by the acquisition request is not the specified file format, the one piece of information read by the partial information reading unit.
  • the information may be converted into the designated file format and transmitted to the other terminal.
  • FIG. 1 shows a configuration of a distribution apparatus 100 according to the embodiment of the present invention.
  • FIG. 2 shows the contents of the partial information storage unit 180 according to the embodiment of the present invention in a table format.
  • FIG. 3 shows a processing flow of the distribution device 100 according to the embodiment of the present invention.
  • FIG. 4 shows a partial information selection flow of the distribution apparatus 100 according to the embodiment of the present invention.
  • FIG. 5 shows a hardware configuration of the distribution apparatus 100 according to the embodiment of the present invention.
  • FIG. 1 shows a configuration of a distribution apparatus 100 according to the present embodiment.
  • the distribution device 100 is a mobile terminal such as a mobile phone or a PDA, and a terminal 110a such as a car navigation system.
  • ⁇ B 'Distribute regional information efficiently.
  • the distribution apparatus 100 receives position information indicating the position of each terminal from the terminals 110a to 110b, and the terminals 110a to b access based on the position information. Select potential information and transfer to high-speed storage. By this means, when receiving a request for obtaining local information from the terminals 110a-b, the local information is distributed from the high-speed storage device, so that the waiting time can be reduced.
  • the distribution device 100 includes a local information storage unit 120, a position information reception unit 150, a position information database 160, a partial information selection unit 170, and a partial information storage unit 180. , An acquisition request receiving unit 190, a partial information reading unit 200, a partial information transmitting unit 210, a moving direction calculating unit 220, a moving speed calculating unit 230, and a distribution calculation. A unit 240, a history calculating unit 250, a destination receiving unit 260, and a destination designation information receiving unit 270.
  • the local information storage unit 120 is a storage device for storing the local information 130, such as a hard disk, a DVD, a CD-ROM, or the like.
  • the regional information 140 is, for example, map information 140a, which is information of a map of the region stored in correspondence with each region in the entire region such as Japan, stores and various facilities located in the region.
  • Facility information which is information on the area, such as 140b, weather information, which is information on the weather in the area, 140c, congestion information, which is information on the degree of congestion of each road, facility, store, etc. included in the area.
  • includes various information such as 40d, event information 140e, which is information on various events held in the area.
  • the position information receiving section 150 receives, via a wireless communication network or the like, position information indicating the position of the terminal 110 obtained by the terminal 110 using, for example, GPS.
  • the location information database 160 stores the received location information of the terminal 110 in association with the terminal.
  • the partial information selection unit 170 selects partial information, which is a part of the regional information, including the position of the terminal 110, and writes it to the partial information storage unit 180.
  • the partial information selection unit 170 includes, as partial information, map information 140 a, facility information 140 b, weather information 140 c, congestion information 144 d, and event information 14.
  • the information of the area where the terminal 110 is located may be selected from the information of 0e.
  • the partial information storage section 180 is written with the partial information selected by the partial information selection section 170, and is accessed faster than the local information storage section 120 A possible storage device.
  • the partial information storage unit 180 may be a storage device that is faster than the local information storage unit 120 such as a main memory of the distribution device 100 or a hard disk, for example, and may be compared with the local information storage unit 120. It is desirable that the storage device realizes higher access throughput.
  • the acquisition request receiving unit 190 receives an acquisition request for one piece of partial information from the terminal 110.
  • the partial information reading section 200 stores the one piece of partial information. Read from section 180.
  • the partial information reading section 200 corresponds to one piece of partial information in the regional information 130 as one piece of partial information. Is read from the local information storage unit 120.
  • the partial information transmission unit 210 transmits the one piece of partial information read by the partial information storage unit 180 to the terminal 110 that has transmitted the acquisition request. Also, when the partial information reading unit 200 reads out the partial information from the local information storage unit 120, the partial information transmitting unit 210 transmits the partial information transmitted to the terminal 110 to the partial information storage unit 1. Supply to 80 and store.
  • the moving direction calculation unit 220 reads the plurality of pieces of position information acquired by the terminal 110 at different times from the position information database 160, and moves the terminal 110 based on the plurality of pieces of position information. Calculate the direction.
  • the moving speed calculation unit 230 reads a plurality of pieces of location information acquired by the terminal 110 at different times from the location information database 160, and moves the terminal 110 based on the plurality of pieces of location information. Calculate the speed.
  • the terminal 110 itself may acquire the moving speed of the terminal 110.
  • the position information receiving unit 150 receives the moving speed from the terminal 110 and stores it in the position information database 160 in association with the terminal. Then, the moving speed calculating section 230 may read the moving speed of the terminal 110 from the position information database 160 and supply it to the partial information selecting section 170.
  • the distribution calculating unit 240 reads out a plurality of pieces of position information received from the terminals 110 a to b from the position information database 160 and calculates the distribution of the terminals 110 a to b based on the plurality of pieces of position information. calculate.
  • the history calculation unit 250 reads out a plurality of pieces of position information received from the terminals 110 a to b from the position information database 160, and based on the plurality of pieces of position information, the terminal 110 Calculate the distribution history of a and b.
  • the destination receiving unit 260 receives, from the terminal 110, information indicating the destination specified by the user of the terminal 1, 10 from the terminal 110, and supplies the information to the partial information selecting unit 170.
  • the destination designation information receiving unit 270 receives, from the terminal 110, information indicating that the user etc. of the terminal 110 has not designated a destination, and sends the information to the partial information selecting unit 170. Supply.
  • partial information is selected in advance based on the position information of distribution apparatuses 100a and b received by position information receiving section 150, and partial information It can be stored in the storage section 180.
  • the corresponding partial information can be read out from the partial information storage unit 180 and transmitted, thereby reducing the waiting time and
  • the concentration of accesses to the local information storage unit 120 can prevent the access throughput of the local information storage unit 120 from becoming saturated.
  • the partial information selection unit 170 is calculated by the movement direction calculation unit 220, the movement speed calculation unit 230, the distribution calculation unit 240, and the history calculation unit 250 using the position information.
  • FIG. 2 shows the contents of the partial information storage unit 180 according to the present embodiment in a table format.
  • the partial information storage unit 180 stores the partial information selected by the partial information selection unit 170 and the partial information supplied from the partial information transmission unit 210 into the type of the partial information, the file format, and It is stored in association with region identification information for identifying a region.
  • the corresponding partial information is any one of map information 140a, facility information 140b, weather information 140c, congestion information 140d, and event information 140e. Indicates whether it is partial information.
  • the file format field indicates the file format of the corresponding partial information.
  • the partial information corresponding to the map information 140a may be an image in a file format such as a bit map or JPEG.
  • the partial information of the facility information 140b, the weather information 140c, the congestion information 140d, and the event information 140e may be, for example, text ⁇ HTMLL or the like.
  • the field indicating the region identification information indicates whether the corresponding partial information is Indicates whether to correspond to the area corresponding to the minute.
  • the field indicating the partial information stores the data of the partial information.
  • FIG. 3 shows a processing flow of the distribution apparatus 100 according to the present embodiment.
  • the position information receiving section 150 receives position information indicating the position of the terminal from each of the terminals 110a and b, and writes the position information to the position information database 160 (S300).
  • the partial information selecting unit 170 is calculated by the moving direction calculating unit 220, the moving speed calculating unit 230, the distribution calculating unit 240, and the history calculating unit 250 based on the position information.
  • partial information that is a part of the regional information 130 is selected (S305).
  • the partial information storage unit 180 writes the selected partial information into the partial information storage unit 180 (S310).
  • the acquisition request receiving unit 190 receives a request to acquire one piece of partial information from the terminal 110 (S315).
  • the partial information readout unit 2000 determines whether one piece of partial information corresponding to the acquisition request is stored in the partial information storage unit 180, and determines the type of the partial information specified by the acquisition request and the area. Judgment is made based on the If report (S320).
  • the partial information reading section 200 stores the one piece of partial information stored in the partial information storage section 180.
  • the read (S325) is supplied to the partial information transmission unit 210.
  • the partial information transmitting unit 210 determines whether or not the file format of the read one piece of partial information matches the file format specified by the acquisition request (S330). If the formats do not match, the one partial information read by the partial information reading unit 200 is converted into the specified file format (S335).
  • the acquisition request for an image such as map information transmitted by the terminal 110 includes information specifying the file format of the image of the partial information.
  • the partial information transmitting unit 210 converts the partial information into the specified file format specified by the acquisition request (S335) and transmits the converted information to the terminal 110 (S335). 5), partial information can be displayed on the terminal 110 without converting the file format on the terminal 110.
  • the partial information reading section 200 sets the partial information in the local information 130 as one piece of partial information.
  • the part corresponding to the one piece of partial information is read from the local information storage unit 120 (S340).
  • the partial information transmitting unit 210 converts the one piece of partial information into the designated file format (S345).
  • the partial information storage unit 180 further stores one piece of partial information read from the regional information storage unit 120 and converted into the designated file format by the partial information transmission unit 210 (S 3 5 0).
  • the partial information transmission unit 210 is read from the partial information storage unit 180 (S3
  • the partial information converted in the format (S345) is transmitted to the terminal 110 that has transmitted the acquisition request (S34).
  • the partial information transmitting unit 210 when the partial information transmitting unit 210 receives a request for acquiring one partial information from one terminal, the partial information transmitting unit 210 is read from the local information storage unit 120 in S340,
  • the one piece of partial information converted into the designated file format in 45 is stored in the partial information storage section 180. For this reason, when the distribution device 100 subsequently receives a request to acquire one piece of partial information from another terminal 110, the distribution apparatus 100 reads out the one piece of partial information from the partial information storage unit 180 (S3). 25), and if necessary, convert to the designated file format specified by the other terminal 110 (S335) and send it to the other terminal 110 (S355) . That is, when the file format specified by the acquisition request received from the other terminal 110 is the specified file format (S330), the partial information storage unit 210 stores the partial information storage. The one piece of partial information read by the unit 180 is transmitted to another terminal 110 (S355).
  • the partial information transmitting unit 210 When the file format specified by the acquisition request received from the other terminal 110 is not the specified file format (S330), the partial information transmitting unit 210 The read one piece of partial information is converted into a specified file format and transmitted to another terminal 110 (S355).
  • the distribution apparatus 100 stores the partial information specified by the acquisition request received from one terminal 110 in the partial information storage unit 180, and transmits the partial information from another terminal 110 to the partial information storage unit 180.
  • the terminal receives a request to obtain the partial information, it reads the partial information from the partial information storage unit 180, converts it to the specified file format from the other terminal 110, and sends it. Can be. Therefore, the distribution apparatus 100 can transmit the partial information to the terminal 110 at higher speed and more efficiently as compared with the case where the partial information is read from the local information storage unit 120.
  • FIG. 4 shows a partial information selection flow in S305 of the distribution apparatus 100 according to the present embodiment.
  • the moving direction calculation unit 220 reads a plurality of pieces of position information acquired by the terminal 110 at different times from the position information database 160, and based on the plurality of pieces of position information, The moving direction is calculated (S400).
  • the partial information selecting unit 170 sets, in the regional information 130, partial information corresponding to the region to which the terminal 110 is directed in the regional information 130. Select and write to the partial information storage section 180 (S405).
  • the partial information selection unit 170 sets, as an area to which the terminal 110 is heading, an area to which the terminal 110 is closer when the terminal 110 further moves in the moving direction. When the terminal 110 moves in a moving direction on a road or the like where the terminal is currently located, an area closer to the terminal 110 may be selected.
  • the moving speed calculation unit 23 reads out a plurality of pieces of position information obtained by the terminal 110 at different times from the position information database 160, and based on the plurality of pieces of position information, the terminal 110 Is calculated (S410).
  • the partial information selecting section 170 selects partial information that is a part of the regional information 130 based on the moving speed calculated by the moving speed calculating section 230, and stores the partial information storage section 180. Write to (S4l5).
  • the partial information selecting unit 1700 compares the moving speed of the terminal 110 with the first reference speed or less, In information 130, partial information corresponding to an area farther from the terminal 110 is selected.
  • the partial information selection unit 170 may use a preset speed as the first reference speed.
  • the partial information selection unit 170 may use the speed of each of the terminals 110a to 110b, for example, the average speed + A speed calculated using a calculation formula such as 30 kmZh may be used. Thereby, when the moving speed of terminal 110 is high, partial information selecting section 170 can write partial information corresponding to a farther area in partial information storage section 180 in advance.
  • the partial information selection unit 170 corresponds to the area where the terminal whose moving speed is lower than the second reference speed among the terminals 110a to b is located in the regional information 130. May be selected and written to the partial information storage unit 180.
  • the partial information reading unit in response to an acquisition request from a terminal 110 having a low moving speed such as a terminal 110 located on a congested road or a terminal 110 lost on the road, the partial information reading unit
  • the partial information transmitting unit 210 and the partial information transmitting unit 210 can transmit the partial information written in the partial information storage unit 180 in advance.
  • the distribution calculation unit 240 reads out a plurality of pieces of location information received from the terminals 110 a to b from the location information database 160, and based on the plurality of pieces of location information, the terminals 110 a to Calculate the distribution of b (S420).
  • the partial information selection unit 1700 determines the density of the plurality of terminals 110a-b in the regional information 130.
  • the partial information corresponding to the area where is larger than the reference density is selected and written to the partial information storage section 180 (S425).
  • the partial information selecting unit 170 may use a value of a preset density as the reference density. A density value that can be selected in order from the area where the terminals 110 are concentrated may be used.
  • the history calculation unit 250 reads a plurality of pieces of location information received from the terminals 110 a to b from the location information database 160, and distributes the plurality of terminals 110 a to b. Is calculated (S430).
  • the partial information selection unit 170 is configured to store the partial information to be stored in the partial information storage unit 180 based on the distribution history of the plurality of terminals 110a and b calculated by the history calculation unit 250. Is selected (S 4 3 5).
  • the partial information selecting unit 170 calculates the estimated distribution of the plurality of terminals 110 a to b after a predetermined time based on the distribution history of the plurality of terminals 110 a to b,
  • the partial information corresponding to the area where the density of the plurality of terminals 110a-b is larger than the reference density in the distribution is selected and written to the partial information storage unit 180.
  • the partial information selection unit 170 may receive an acquisition request by the terminal 110 based on how each of the terminals 110 has moved on the past weekday. Partial information corresponding to an area estimated to be high can be selected in advance and stored in the partial information storage unit 180.
  • the destination receiving section 260 receives information indicating the destination specified by the user of the terminal 110 or the like.
  • the information is received from the terminal 110 and supplied to the partial information selection unit 170 (S440).
  • the partial information selecting unit 170 selects the part corresponding to the area to be passed when the terminal 110 moves to the destination in the regional information 130.
  • the information is selected and written in the partial information storage unit 180 (S445).
  • the destination designation information receiving unit 270 receives from the terminal 110 information indicating that the user or the like of the terminal 110 has not designated a destination, and supplies the information to the partial information selecting unit 170 ( S 450).
  • the partial information selection unit 170 selects partial information corresponding to the area where the terminal 110 is located in the regional information 130, and stores the partial information storage unit 180. Write to 1 ⁇ (S450). Thereby, when the destination is specified, the partial information selection unit 170 can write the partial information corresponding to each area on the route to the destination into the partial information storage unit 180 in advance, and In the case where the destination is not specified, the partial information for the area around the terminal 110 can be written in advance in the partial information storage unit 180, and the user of the terminal 110 can use the distribution device 100 according to the purpose. Thus, appropriate partial information can be written in advance to the partial information storage unit 180.
  • FIG. 5 shows a hardware configuration of the distribution device 100 according to the present embodiment.
  • the distribution apparatus 100 is realized by an information processing apparatus 400 including a CPU 500, a ROM 510, a RAM 520, a communication interface 530, a hard disk drive 540, a flexible disk drive 550, and a CD-ROM drive 560.
  • the CPU 500 operates based on programs stored in the ROM 510 and the RAM 520, and controls each unit.
  • the ROM 510 stores a boot program executed by the CPU 500 when the information processing device 400 is started, a program that depends on the hardware of the information processing device 400, and the like.
  • the RAM 520 stores programs executed by the CPU 500, data used by the CPU 500, and the like. Further, the RAM 520 may operate as the partial information storage unit 180 that stores the partial information. Communication interface 530 communicates with other devices via a network.
  • the hard disk drive 540 stores programs and data used by the information processing device 400, and Supply to CPU500 via AM520. Further, the hard disk drive 540 may operate as the location information database 160 and the local information storage unit 120 that stores the local information 130.
  • the flexible disk drive 550 reads a program or data from the flexible disk 590 and provides it to the RAM 520.
  • the CD-ROM drive 560 reads a program or data from the CD-ROM 595 and provides it to the RAM 520.
  • the program provided to the CPU 500 via the RAM 520 is stored in a recording medium such as a flexible disk 590, a CD-ROM 595, or an IC card and provided by a user.
  • the program is read from the recording medium, installed in the information processing device 400 via the RAM 520, and executed in the information processing device 400.
  • the programs installed and executed on the information processing apparatus 400 include a position information receiving module, a partial information selecting module, an acquisition request receiving module, a partial information reading module, a partial information transmitting module, and a 'moving direction calculation. It includes a module, a traveling speed calculation module, a distribution calculation module, a history calculation module, a destination receiving module, and a destination designation information receiving module.
  • These programs or modules include an information processing device 400, a position information receiving unit 150, a partial information selecting unit 170, an acquisition request receiving unit 190, a partial information reading unit 200, a partial information transmitting unit 210, a moving direction calculating unit 220, It functions as the moving speed calculating section 230, the distribution calculating section 240, the history calculating section 250, the destination receiving section 260, and the destination specifying information receiving section 270, respectively.
  • the programs or modules described above may be stored in an external storage medium.
  • an optical recording medium such as 00 ⁇ 0, a magneto-optical recording medium such as an MD, a tape medium, and a semiconductor memory such as an IC card can be used.
  • 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 information processing device 400 via the network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un système de restitution, qui comprend une partie de stockage d'informations régionales pour stocker des information régionales; une partie de réception d'informations de position pour recevoir des informations de position acquises par un terminal et indiquant la position du terminal; une partie de sélection d'informations partielles pour choisir une information partielle en tant que partie des informations régionales comprenant la position du terminal; une partie de stockage d'informations partielles dans laquelle une information partielle choisie est écrite et qui est accessible à un débit supérieur à celui de la partie de stockage d'informations régionales; une partie de réception de demandes d'acquisition pour recevoir du terminal une demande d'acquisition d'un élément d'informations partielles; une partie de lecture d'informations partielles pour lire l'élément d'informations partielles de la partie de stockage d'informations partielles lorsque l'élément d'informations partielles a été stocké dans la partie de stockage d'informations partielles; et une partie de transmission d'informations partielles pour transmettre au terminal l'élément d'informations partielles lu par la partie de lecture d'informations partielles.
PCT/JP2002/013335 2002-12-20 2002-12-20 Systeme de restitution, programme pour ledit systeme, et procede de commande dudit systeme WO2004057904A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2002357629A AU2002357629A1 (en) 2002-12-20 2002-12-20 Delivering apparatus, program for delivering apparatus, and method for controlling delivering apparatus
JP2004561999A JPWO2004057904A1 (ja) 2002-12-20 2002-12-20 配信装置、配信装置用のプログラム、及び配信装置の制御方法
PCT/JP2002/013335 WO2004057904A1 (fr) 2002-12-20 2002-12-20 Systeme de restitution, programme pour ledit systeme, et procede de commande dudit systeme

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Application Number Priority Date Filing Date Title
PCT/JP2002/013335 WO2004057904A1 (fr) 2002-12-20 2002-12-20 Systeme de restitution, programme pour ledit systeme, et procede de commande dudit systeme

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WO2019150466A1 (fr) * 2018-01-31 2019-08-08 三菱電機株式会社 Dispositif de distribution d'informations de guidage, système de guidage d'utilisateur, et dispositif de fourniture d'informations

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