JP4875909B2 - Information terminal device, information communication method, and information communication program - Google Patents

Description

  The present invention relates to a technique for sharing information among a plurality of information terminal devices.

  2. Description of the Related Art A communication type in-vehicle navigation device that acquires map data, route guidance data, and the like and performs vehicle navigation by communicating with a server, an information providing center, and the like is known. For example, Patent Document 1 discloses a car navigation device that uses a mobile phone as a communication means and can acquire facility information from a server via a network. This document is characterized in that the server does not transmit information that is not necessary for actual use by specifying information in the vicinity of the current position of the mobile object.

JP 2002-357433 A

  Patent Document 1 discloses a system including a mobile body (car navigation device) that is a receiver of information, a server, and a client (store), but the roles of the server and the client are fixed, It is difficult to say that the system is suitable in a situation where a plurality of mobile bodies share information with each other. For example, it is difficult to apply to an environment in which a piece of music data is shared by a plurality of devices.

  In a system in which information is shared by a plurality of devices, it is desirable that appropriate information is provided in consideration of the opinions of users of each device.

  The above-mentioned thing is mentioned as an example as a subject which the present invention tends to solve. It is an object of the present invention to share information possessed by a certain information terminal device with other information terminal devices so that the information can be effectively used in an information sharing system including a plurality of information terminal devices.

The invention according to claim 1 is an information terminal device that is connected to the information sharing system and constitutes a part thereof, and storage means for storing provided information and a provided information list that can be provided to other information terminal devices; Responding to a request from a specifying means for a user who is an information provider to specify provided information among provided information included in the provided information list and at least one other information terminal device connected to the information sharing system A list transmitting means for transmitting the provided information list to all other information terminal devices connected to the information sharing system; receiving the provided information list from the information terminal device of the information provider; Of the provision information included in the provision information list, a request for provision information designated by at least one user who is an information receiver is used as designated provision information and the information terminal device of the information provider And providing information requesting means for transmitting to, among provides information included in the provided information list, transmission for transmitting the designated designated advertisement to all other data terminal device connected to the information sharing system Means for executing processing associated with the designated provision information in the information terminal device in accordance with transmission of the designated provision information by the transmission means, and the designated provision from the information terminal device of the information provider Receiving processing means for receiving information and executing processing associated with the provided information.

The invention according to claim 6 is an information communication method executed in an information terminal device that is connected to an information sharing system and constitutes a part thereof , and is an information provider out of provided information included in a provided information list. In response to a request from at least one other information terminal device connected to the information sharing system, the providing information list is connected to the information sharing system. A list transmission step of transmitting to all other information terminal devices, receiving the provision information list from the information terminal device of the information provider, and at least being an information receiver among the provision information included in the provision information list a request for providing information to one of the user-specified and provided information request step of transmitting a specified provision information to the information provider of the information terminal device, the advertisement list Of the advertisements contained, the designated designated advertisement transmission step of transmitting said all other information are connected to a shared system to the information terminal apparatus, the transmission of the specified providing information by the transmitting means In addition, an execution step of executing processing associated with the designated provision information in the information terminal device, and receiving the designated provision information from the information terminal device of the information provider, and performing processing associated with the provision information. And a reception processing step to be executed.

The invention according to claim 7 is an information communication program that is executed in an information terminal device that includes a computer and is connected to an information sharing system and constitutes a part thereof, and can be provided to other information terminal devices And a storage means for storing a provision information list, a designation means for a user who is an information provider to designate provision information among provision information included in the provision information list, and at least one other connected to the information sharing system In response to a request from one information terminal device, the provided information list is transmitted to all other information terminal devices connected to the information sharing system, list transmission means from the information provider information terminal device A request for provision information specified by at least one user who receives the provision information list and is included in the provision information list. And providing information requesting means for transmitting to the information provider of the information terminal device as a designated providing information, among the provided information included in the provided information list, the designation provides information the specified, connected to the information sharing system Transmitting means for transmitting to all other information terminal devices, execution means for executing processing associated with the designated provision information in the information terminal device in accordance with transmission of the designated provision information by the transmission means, The computer is caused to function as a reception processing unit that receives the designated provision information from an information terminal device of an information provider and executes a process associated with the provision information.

  In one embodiment of the present invention, an information terminal device constituting an information sharing system stores storage information that can be provided to other information terminal devices and a provision information list, and provision included in the provision information list Among the information, the transmission means for transmitting the designated provision information designated by the user who is the information provider to another information terminal device, and the transmission of the designated provision information by the transmission means, in the information terminal device in the information terminal device Execution means for executing processing associated with designated provision information, and reception processing means for receiving the designated provision information from an information terminal device of an information provider and executing processing associated with the provision information.

  The plurality of information terminal devices are configured to be able to transmit and receive information to and from each other via a communication network or the like, thereby constituting an information sharing system. Each information terminal device functions as a terminal device on the information providing side that provides information to other information terminal devices, and also functions as a terminal device on the information receiving side that receives information from the terminal device on the information providing side. it can. The information terminal device stores provision information, which is information that can be provided to other information terminal devices, in an internal database or the like, and also stores a provision information list that is a provision information list.

  When functioning as a terminal device on the information providing side, the information terminal device transmits specified provision information designated by the user who is the information provider to other information terminal devices among the provision information included in the provision information list. At the same time, in accordance with the transmission of the designated provision information, processing associated with the designated provision information is executed in the information terminal device.

  On the other hand, when functioning as a terminal device on the information receiving side, the information terminal device receives the designated provision information from the information terminal device of the information provider, and executes a process associated with the provision information.

  In this way, each information terminal device constituting the information sharing system can transmit the provision information specified by the user as the information provider to other information terminal devices. Thereby, the information possessed by each information terminal device can be shared by all the information terminal devices, and the information can be effectively used. In addition, the information terminal device of the information provider executes processing related to the designated provision information, and the information terminal device of the information receiver executes processing related to the provision information transmitted from the terminal device of the information provider. Therefore, in the information terminal devices of both the information provider and the information receiver, the same process is executed based on the same provided information. For example, when the provided information is music data, both the information terminal device that provided the music data and the information terminal device that received the music data can reproduce the same music data.

  One aspect of the above information terminal device is a list transmission for transmitting the provided information list to other information terminal devices including the information terminal device of the information receiver in response to a request from the information terminal device of the information receiver. Means for receiving the provision information list from the information terminal device of the information provider, and requesting the provision information specified by the user who is the information receiver among the provision information included in the provision information list. Providing information requesting means for transmitting to the information terminal device. In this aspect, the provision information list possessed by the information provider is sent to the information receiver, and the information receiver transmits a request for desired provision information from the provision information list to the information terminal device of the information provider. Therefore, the information provider can determine the provision information to be transmitted to each information terminal device in consideration of the request from the information receiver.

  In the other one aspect | mode of said information terminal device, the said transmission means transmits the said designation | designated provision information with respect to all the information terminal devices which comprise the said information sharing system. Thereby, all the other information terminal devices can acquire the provision information possessed by a certain information terminal device.

  In another aspect of the information terminal device, the transmitting unit generates a count list by counting the number of provision information requests received from the information receiver for each provision information, and displays the total list on the display device. Means. As a result, the information provider can easily know which information receivers possessing other information terminal devices need the provision information he possesses, and provide information suitable for the information receiver's request Is possible.

  In a preferred example, the provision information may be music data. As a result, the music data possessed by one information terminal device can be shared by other information terminal devices and reproduced by the information terminal device of its own.

  In another preferred example, the provision information may be data related to a geographical point. Thereby, for example, point information such as a destination set in a certain information terminal device can be shared by other information terminal devices, and similarly set to the destination by other information terminal devices.

  In another embodiment of the present invention, an information communication method executed in an information terminal device that constitutes an information sharing system is specified provision information specified by a user who is an information provider among provision information included in a provision information list. A transmission step for transmitting the information to another information terminal device, an execution step for executing processing associated with the designated provision information in the information terminal device in accordance with transmission of the designated provision information by the transmission means, and information Receiving the designated provision information from the information terminal device of the provider, and executing a process associated with the provision information.

  In this embodiment, by executing the above information communication method in a state where a plurality of information terminal devices constitutes an information sharing system, the information possessed by each information terminal device is transferred to all information terminals. It can be shared by devices, and information can be used effectively.

  In yet another embodiment of the present invention, an information communication program that is provided in a computer and that is executed in an information terminal device constituting an information sharing system stores provision information and a provision information list that can be provided to other information terminal devices. Storage means, transmission means for transmitting designated provision information designated by a user who is an information provider among provision information included in the provision information list, transmission means for transmitting the designated provision information by the transmission means, At the same time, execution means for executing processing associated with the designated provision information in the information terminal device, receiving the designated provision information from the information terminal device of the information provider, and executing processing associated with the provision information The computer is caused to function as reception processing means.

  In this embodiment, in a state where a plurality of information terminal devices constitutes an information sharing system, the information communication program is executed on the information terminal device, whereby the information possessed by each information terminal device is obtained. The information can be shared by all the information terminal devices, and the information can be used effectively. Note that the information communication program can be preferably handled in a state stored in a recording medium.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The following description shows an example in which the present invention is applied to a navigation device mounted on a vehicle. That is, the navigation device constitutes the information terminal device according to the present invention.

[Navigation device]
FIG. 1 shows the configuration of the navigation device 1. As shown in FIG. 1, the navigation device 1 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, a display unit 40, an audio output. A unit 50 and an input device 60 are provided.

  The autonomous positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

  The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position of the vehicle from latitude and longitude information.

  The system controller 20 includes an interface 21, a CPU (Central Processing Unit) 22, a ROM (Read Only Memory) 23, and a RAM (Random Access Memory) 24, and controls the entire navigation device 1.

  The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

  A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50, and an input device 60 are mutually connected via a bus line 30. It is connected to the.

  The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.

  The data storage unit 36 is configured by, for example, an HDD and stores various data used for navigation processing such as map data and facility data.

  The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and traffic congestion and traffic information distributed from a VICS (Vehicle Information Communication System) center via the communication interface 37. Receive road traffic information and other information.

  In addition, the communication device 38 can be configured to communicate with a server through the Internet or other networks so that information can be transmitted and received. In this case, the communication device 38 can transmit / receive information to / from the navigation device 1 mounted on another vehicle via the server. Furthermore, the communication device 38 can also be configured so that information can be directly transmitted and received through the peer-to-peer (P2P) communication with the navigation device 1 mounted on another vehicle. .

  The display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays the map data read from the data storage unit 36 by the system controller 20 on a display screen such as a display. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and image information that can be displayed immediately, such as a VRAM (Video RAM). A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal display or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided. . The display 44 is composed of, for example, a liquid crystal display device having a diagonal of about 5 to 10 inches, and is mounted near the front panel in the vehicle.

  The audio output unit 50 performs D / A (Digital to Analog) conversion of audio digital data sent from the CD-ROM drive 31, DVD-ROM 32, RAM 24, or the like via the bus line 30 under the control of the system controller 20. A D / A converter 51 to perform, an amplifier (AMP) 52 that amplifies the audio analog signal output from the D / A converter 51, and a speaker 53 that converts the amplified audio analog signal into sound and outputs the sound into the vehicle. It is prepared for.

  The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

[Information sharing system]
Next, an information sharing system including a plurality of navigation devices 1 will be described. FIG. 2 shows a configuration example of the information sharing system. In FIG. 2, the information sharing system 100 includes a plurality of navigation devices 1a to 1c. Each of the navigation devices 1a to 1c has the configuration shown in FIG. That is, each navigation device 1 a to 1 c communicates with the server 101 or another navigation device 1 using the communication device 38.

  Basically, each navigation device 1 a to 1 c can transmit and receive information by connecting to the server 101. For example, when the user A who operates the navigation device 1a provides certain information to the other users B and C, the user A uploads the information to the server 101, and the users B and C receive the information from the server 101. Download to navigation devices 1b and 1c. When each navigation device 1a to 1c is configured to be able to communicate peer-to-peer (hereinafter referred to as “P2P”), as shown by a broken line 107 in FIG. Information can be sent and received directly without going through.

  Each user A-C operates each navigation apparatus 1a-1c, logs in to the communication network which comprises the information sharing system 100, and becomes a member of the information sharing system 100, and can share information. Specifically, each user inputs a predetermined user name, password, and the like on the navigation device 1 and logs in to the communication network. The logged-in navigation device 1 recognizes another navigation device 1 that has already logged in on the communication network, and is recognized by the other navigation device 1. Thus, the user becomes a member of the information sharing system 100 until logging out of the communication network. Further, as a basic function, the navigation device 1 constituting the information sharing system (that is, logging in) periodically transmits the current position information of its own vehicle to the navigation devices 1 of other members. As a result, while participating in the information sharing system, each member can mutually recognize the current position of the vehicle of the other member.

[Information transmission / reception method]
Next, a basic information transmission / reception method in the information sharing system 100 will be described. In this embodiment, each navigation device 1 transmits and receives music data reproduced by the audio output unit 50 to each other in the information sharing system 100. That is, music data is an example of provided information in the present invention.

  Hereinafter, the music data transmission / reception method will be described in detail. Now, in FIG. 2, the user A who uses the navigation device 1a becomes the information provider (that is, the information sender), the users B and C who use the navigation devices 1b and 1c become the information receivers, and the music data Is assumed to be transmitted and received.

  The navigation apparatus 1a of the user A who is an information provider includes a music DB 110 that stores a large number of music data. The navigation device 1a also includes a music list 120 that is a list of a large number of music data stored in the music DB 110. The music DB 110 and the music list 120 can be stored in the data storage unit 36 shown in FIG.

  The basic flow of the music data providing method is shown in FIG. In this example, it is assumed that the user B requests the music list and the music from the user A, and the user A provides the music data to all users including the user B.

  First, the user B operates his / her own navigation device 1b to request the music list 120 from the user A who is an information provider (step S1). On the other hand, the navigation device 1a of the user A transmits the music list 120 to the navigation devices 1 of all members of the information sharing system 100 (step S2).

  Each user who receives the music list 120 refers to the music list, selects a music to be played, and transmits a request for transmitting the music (also referred to as “request”) to the navigation device 1a of the user A (step). S3). In response to this, the navigation device 1a of the user A uploads the music data of the requested music to the server 101 (step S4), and starts reproduction to the navigation devices 1 of all the members participating in the information sharing system 100. A request is transmitted (step S5). In response to this, each navigation device 1 accesses the server 101 and performs streaming playback of the music data (step S6). At the same time, the navigation device 1a of the user A reproduces the same music data from his music DB 110 (step S6). Thus, members participating in the information sharing system 100 can share the music data stored in the navigation device 1 of the user A, and all the users including the user A who is the information provider have the same music. Can be heard almost simultaneously.

  FIG. 4 shows a flowchart of music data transmission processing. This transmission process is realized by the system controller 20 of the navigation device 1 used by a user who is an information provider executing a program prepared in advance. Now, as illustrated in FIG. 2, it is assumed that the information provider is the user A and the information receivers are the users B and C.

  First, the user B or C who is the information receiver operates the navigation device 1 and requests the music list from the user A who is the information provider. The navigation device 1a of the user A determines whether or not there is a music list request from another navigation device 1 (step S11). If there is no request for the music list, the process ends. When there is a request for the music list, the navigation device 1a of the user A transmits the music list to the navigation devices 1 of all members participating in the information sharing system 100 (that is, all users who are logged in) (step S12). ). In this example, the music list is transmitted to the navigation devices 1b and 1c of the users B and C.

  Next, when the user who has received the music list views the music list and sends a request for the music to be played back, the navigation device of the information provider receives it (step S13; Yes), and totals the number of requests for each music. The result is displayed on the display 44 of the navigation device 1a (step S14). The total number of requests indicates the number of requests for each song in the song list. Then, user A sees the result of the request and designates the music to be transmitted, and navigation device 1a receives the designation (step S15). Then, the navigation device 1a transmits the music data designated by the user A to all members (step S16). Thus, the music requested by a specific user who is a member of the information sharing system is transmitted to the navigation devices 1 of all the members and reproduced. Note that the music data transmitted to each navigation device 1 in step S16 can be stream data. Thereby, the user of each navigation apparatus 1 can hear the transmitted music immediately.

  FIG. 5 shows a flowchart of music data reception processing. This transmission process is realized by the system controller 20 of the navigation device 1 used by the user who is the information receiver executing a program prepared in advance. 2, it is assumed that the information provider is the user A and the information receivers are the users B and C.

  First, the user B who is an information receiver operates the navigation device 1b to request a music list from the navigation device 1a of the user A (step S21), and receives the music list (step S22). Next, when the user B refers to the received music list and designates the music to be played (step S23; Yes), the navigation device 1b transmits a playback request for the music to the navigation device 1a of the user A (step). S24). And the navigation apparatus 1b of the user B receives and reproduces the music data transmitted from the navigation apparatus 1a of the user A.

  Since the information provider is set to transmit music data to all members, the navigation device 1c of the user C can also receive and play the music requested by the user B. Thus, if one of the members requests a music list from a user who is an information provider, and one of the users who has received the music list requests a user who is an information provider to play a music, information sharing is performed. All members of the system 100 can obtain the song. Also, by providing music data as stream data, all members can listen to the same music almost simultaneously.

  In the above example, the navigation device 1 of the information provider transmits the music list to all members in step S12. Instead, a specific member including at least the member who has requested the music list in step S11. It is good also as transmitting a music list only to.

  Further, in the above example, the result of request summarization is displayed in step S14, and finally the music to be transmitted by the user is designated from among them. Instead, the information provider's navigation device 1 may sequentially transmit all the requested music pieces to each member without displaying the result of the request aggregation. In addition, the fact that the request has been made is displayed on the navigation device 1 of the information provider and notified, and the music data of the requested music is transmitted only for the request that has been confirmed by the information provider user. It is good.

  In the above example, the music data is transmitted to all members in step S16. Instead, the music data may be transmitted only to specific members including at least the member who requested the music. Absent.

  Next, an example of a display screen displayed to the user during the music data transmission / reception operation will be described. Hereinafter, an operation procedure by the user will be described with reference to a display screen example of the navigation device 1.

  FIG. 6A shows an example of a display screen of the navigation device 1a used by the user B. In this example, it is assumed that the users A to C log in to the communication network using the navigation devices 1a to 1c, respectively, and are members of the information sharing system as shown in FIG. In this example, it is assumed that the users A to C are performing so-called chat using the communication network of the information sharing system 100. Note that chatting generally means that a plurality of users who are accessing the Internet or personal computer communication have conversations in real time using characters on the screen. In this example, the user uses the navigation device 1 as a terminal device and exchanges character string (text) data in real time with a user who uses another navigation device. Note that character information input by a certain user is basically displayed on the navigation devices 1 of all users participating in the chat.

  A display screen 130 is displayed on the display 44 of the navigation device 1b of the user B as shown in FIG. The display screen 130 includes a map, various input buttons, and a chat message. Specifically, a map near the current position of the vehicle including the road 131 on the map is displayed on the display screen 130, and a current position mark 132 indicating the current position of the vehicle and a route currently being guided are displayed on the map. The guide route 133 and the current position marks 134a and 134c of the vehicles of other members participating in the chat are displayed. The current position mark 134a corresponds to the user A's vehicle including the navigation device 1a, and the current position mark 134c corresponds to the user C's vehicle including the navigation device 1c. Further, a message window 145 showing a chat message is displayed on the display screen 130.

  Various input buttons are displayed at the left and right positions of the display screen 130. The music list request button 136 is used when a user who is an information receiver requests a user who is an information provider to transmit a music list. The music request button 137 is used when a user who is an information receiver makes a music request to a user who is an information provider. The request display button 138 is used when a user who is an information provider displays a count result of requests for music transmitted from other users and transmits music data. The music playback button 139 is used when the user who is the information provider transmits the music data to each member and plays it back without request from the user who is the information receiver.

  In this example, the navigation device of the information provider transmits music data to all members of the information sharing system 100 in principle. However, the music data can be transmitted only to a specific member by the selection of the user A who is the information provider.

  First, on the display screen 130 shown in FIG. 6A, when the user B who is the information receiver presses the music list request button 136, a request for a music list is sent from the navigation device 1b to the navigation device 1a and responds to this. Then, the music list is transmitted from the navigation device 1a to the navigation device 1b. When the music list is received, as shown in FIG. 6A, the navigation device 1b notifies the user B by displaying that fact on a message window 145, for example.

  Next, when the user B presses the music request button 137, a music list screen 140 shown in FIG. 6B is displayed on the display 44 of the navigation device 1b. A music list including a plurality of music is displayed on the music list screen 140, and the user can select the music bar 141 by operating the input device 60 such as a remote control or a touch panel. When the user B selects one or a plurality of music pieces that the user B desires to play, selects the music piece by the music bar 141, and presses the send button 142, the request for the music piece selected by the user B is sent to the navigation apparatus 1a of the user A. Sent. Thereafter, the display screen 130 shown in FIG. 6A is displayed on the display 44 of the navigation device 1b.

  When the navigation device 1a of the user A receives the music request from the navigation device 1b of the user B, the message indicating that the music request has been received is displayed in the message window 145, as shown in FIG. When the user A presses the request display button 138, as shown in FIG. 7B, a screen 160 showing the result of request aggregation is displayed on the display 44. On the screen 160, the number of requests is displayed in each music bar 141. User A refers to the tabulated result of the request, selects the music bar 141, selects the music to be transmitted to the member, and presses the send button 142. Thereby, the music data of the music selected by the user A is transmitted to the navigation devices 1 of all members of the information sharing system 100 and reproduced.

  In the above embodiment, the user A is always an information provider, but in reality, the roles of the information provider and the information receiver change from moment to moment. That is, at a certain point in time, among users of a plurality of navigation devices constituting the information sharing system, a user who has received a music list request from another user becomes an information provider, and all other users receive information. Become a person. When a music list request is made to another user at the next time point, the user who receives the request becomes an information provider. Therefore, the members of the information sharing system can request the music possessed by other members and play them on their own navigation devices as necessary.

  As described above, in this embodiment, in the information sharing system, when a user who is an information receiver requests a music list from a user who is an information provider, all users who configure the information sharing system are requested. The music list is transmitted, and each user can make a music request. When each user makes a music request, the navigation device of the user who is the information provider displays the totaled result of the request. The totaled result of the request is a kind of questionnaire for each user, and the user who is the information provider can see the totaled result and transmit music that satisfies the members.

[Other embodiments]
In the above embodiment, the user A who is the information provider determines the music to be transmitted to each information receiver in consideration of the music request from the information receiver. On the other hand, in the following embodiment, the user A who is an information provider determines and distributes music to be transmitted to each information receiver without obtaining a music request from the information receiver. This can be used preferably when, for example, opinions have already been exchanged in a chat or the like, and the user A who is the information sender has already understood the music requested by each information receiver.

  A method of transmitting and receiving music data in the present embodiment will be described with reference to FIG. The configuration of the information sharing system shown in FIG. 8 is the same as that shown in FIG. 2, and the navigation device 1a of the user A who is the information provider and the navigation devices 1b and 1c of the users B and C who are the information recipients are mutually connected. It is configured to be able to communicate with. Here, in the present embodiment, the user A selects a music to be transmitted from the music stored in his music DB 110, and transmits the music data 125 to the navigation devices 1b and 1c. In practice, as shown in FIG. 3, the navigation device 1a uploads the music data 125 to the server 101, and the navigation devices 1b and 1c download and stream them.

  FIGS. 9A and 9B show examples of display screens when the user A who is the information provider in this embodiment transmits music data. Now, as shown in FIG. 9A, it is assumed that the user A knows the music to be distributed to each user through chat with the users B and C. That is, in this example, the user A delivers SONG-7 based on the messages of the users B and C. In this case, when the user A presses the music playback button 139, a music list screen 165 as shown in FIG. 9B is displayed on the display 44 of the navigation device 1a. User A selects the song bar 141 of SONG-7 to be played and presses the send button 142.

  Thereby, the process similar to step S4-S6 of FIG. 3 is performed. That is, the navigation device 1a reads the song data 125 of SONG-7 from the song DB 110 and uploads it to the server 101, and transmits a reproduction start request to the navigation devices 1b and 1c of the users B and C. Furthermore, the navigation device 1a of the user A reproduces the song data of SONG-7 read from the song DB 110.

  The navigation devices 1b and 1c that have received the playback start request access the server 101 and perform streaming playback of the song data of SONG-7. In this way, the users A to C can play the SONG-7 almost simultaneously with the respective navigation devices 1a to 1c.

[Modification]
In the above example, music data is cited as information shared by members of the information sharing system, but the present invention is not limited to this embodiment. For example, information on points to be registered in the navigation device can be shared. For example, a user who is an information provider provides a list of registered points to other members, and each member selects a destination he / she wants to go to and makes a request to the information provider. The information provider determines the destination with reference to the total result of the request, and transmits the position information of the destination and / or route information to the destination to the navigation devices of all members. Thereby, the same destination can be set in the navigation devices of all the members.

  In the above embodiment, the music list and the music request, and the music list and the music data are transmitted / received mainly via the server. However, as described with reference to FIG. It is also possible to send and receive data using P2P communication. In particular, the music list request, the music data transmission request, and the music list itself are suitable for transmission by P2P because they have a smaller data amount than the music data.

It is a block diagram which shows schematic structure of the navigation apparatus by an Example. 1 shows an information sharing system including a plurality of navigation devices. A basic method for transmitting and receiving music data is shown. It is a flowchart of a music data transmission process. It is a flowchart of reception processing of transmission data. It is an example of a display screen during music data transmission / reception operation. It is an example of a display screen during music data transmission / reception operation. A method for transmitting and receiving music data in another embodiment will be described. It is an example of the display screen during transmission operation of the music data in another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 10 Self-supporting positioning apparatus 18 GPS receiver 20 System controller 22 CPU
36 Data storage unit 40 Display unit 60 Input device

Claims (8)

An information terminal device connected to an information sharing system and constituting a part thereof ,
Storage means for storing provision information and provision information list that can be provided to other information terminal devices;
Of the provision information included in the provision information list, a designation means for a user who is an information provider to designate provision information;
A list for transmitting the provided information list to all other information terminal devices connected to the information sharing system in response to a request from at least one other information terminal device connected to the information sharing system. A transmission means;
The provision information list is received from the information terminal device of the information provider, and a request for provision information designated by at least one user who is an information recipient among provision information included in the provision information list is designated provision information. Providing information request means for transmitting to the information terminal device of the information provider;
Among the provision information included in the provision information list, transmission means for transmitting the designated designated provision information to all other information terminal devices connected to the information sharing system ;
Execution means for executing processing associated with the designated provision information in the information terminal device in accordance with transmission of the designated provision information by the transmission means;
An information terminal device comprising: reception processing means for receiving the designated provision information from an information provider information terminal device and executing processing associated with the provision information. The transmission unit, the number of requests for providing information received from the information recipient to claim 1, by summing each providing information to produce the aggregated list, characterized in that it comprises means for displaying on the display device The information terminal device described. The providing information information terminal apparatus according to claim 1 or 2, characterized in that the data of the music. The providing information, the information terminal device according to any one of claims 1 to 3, characterized in that the data relating to the point on geography. Provided with position detection means for detecting the current position,
5. The transmission unit according to claim 1, wherein the transmission unit periodically transmits the current position of the information terminal device as the provision information to all other information terminal devices connected to the information sharing system. The information terminal device according to any one of claims . An information communication method executed in an information terminal device connected to an information sharing system and constituting a part thereof ,
Among the provision information included in the provision information list, a designation step in which the user who is the information provider designates the provision information,
A list for transmitting the provided information list to all other information terminal devices connected to the information sharing system in response to a request from at least one other information terminal device connected to the information sharing system. Sending process;
The provision information list is received from the information terminal device of the information provider, and a request for provision information designated by at least one user who is an information recipient among provision information included in the provision information list is designated provision information. A provision information requesting step for transmitting to the information terminal device of the information provider;
Among the provision information included in the provision information list, a transmission step of transmitting the designated designated provision information to all other information terminal devices connected to the information sharing system ;
An execution step of executing processing associated with the designated provision information in the information terminal device in accordance with the transmission of the designated provision information by the transmission unit;
An information communication method comprising: a reception processing step of receiving the designated provision information from an information provider device of an information provider and executing a process associated with the provision information. An information communication program that is executed in an information terminal device that includes a computer and is connected to an information sharing system and constitutes a part thereof ,
Storage means for storing provision information and provision information list that can be provided to other information terminal devices;
A designation means for a user who is an information provider to specify provision information among provision information included in the provision information list ,
A list for transmitting the provided information list to all other information terminal devices connected to the information sharing system in response to a request from at least one other information terminal device connected to the information sharing system. Transmission means,
The provision information list is received from the information terminal device of the information provider, and a request for provision information designated by at least one user who is an information recipient among provision information included in the provision information list is designated provision information. Provision information request means for transmitting to the information terminal device of the information provider;
Transmission means for transmitting the specified designated provision information among the provision information included in the provision information list to all other information terminal devices connected to the information sharing system ,
An execution means for executing processing associated with the designated provision information in the information terminal device in accordance with transmission of the designated provision information by the transmission means;
An information communication program that causes the computer to function as a reception processing unit that receives the designated provision information from an information terminal device of an information provider and executes a process associated with the provision information. 8. A recording medium on which the information communication program according to claim 7 is recorded.

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