JP2010177920A - Communication terminal, communication method and communication program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication terminal capable of preventing a user of a terminal, which does not have the right to use contents, from freely editing and transmitting the contents received from another terminal. <P>SOLUTION: The communication terminal 100A includes: a display 107; an input device 119 configured to receive an operation instruction; a communication unit 101 configured to transmit and receive data to and from the other communication terminal 100B; a first storage unit 108 configured to store first information associatively with first authority information showing the use authority of the first information; a generation means 1061 for generating a content including the first information based upon the operation command; a communication control unit 1062 configured to transmit the first information and the corresponding first authority information to the other communication terminal and to receive second information and corresponding second authority information from the other communication terminal; and a display control means 1063 for displaying a content including the second information based upon the second authority information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication terminal, a communication method, and a communication program that can be connected to another communication terminal via a network, and more particularly, to a communication terminal, a communication method, and a communication program that exchange contents with other communication terminals in real time. .

  In recent years, it has become possible for mobile phone users to communicate with other mobile phone users by using the telephone function even when they are away from home.

  However, communication using a telephone function is not allowed when a mobile phone user uses public facilities such as trains, buses, movie theaters, and libraries. Therefore, the user communicates with other mobile phone users using characters by using functions such as mail and chat. In text communication, it is difficult to convey information representing emotions and situations, compared to communication using real voice. Moreover, since it takes time to input a message to be communicated in text communication, a real-time response cannot be made.

  For example, Japanese Patent Laid-Open No. 2001-111708 (Patent Document 1) discloses a portable information communication device. According to Japanese Patent Laying-Open No. 2001-111708 (Patent Document 1), a portable information communication device sequentially and continuously connects coordinate information of handwritten data input by a user using an input unit such as a liquid crystal display integrated tablet. At the same time as transmitting to the portable information communication device, the handwriting of the input handwritten data is displayed on the display means such as a liquid crystal display, and at the same time, the coordinate information of the handwritten data sent from the portable information communication device of the connection destination Originally, the handwritten data received is configured to be displayed on the display means. With this configuration, handwritten input data can be transmitted and received in real time using a portable terminal device, and conversational communication such as writing can be realized at any time regardless of location.

  Japanese Unexamined Patent Application Publication No. 2003-234842 (Patent Document 2) discloses a real-time handwritten communication system. According to Japanese Patent Laying-Open No. 2003-234842 (Patent Document 2), a real-time handwritten communication system includes a touch panel, a touch pen, a data input device, a controller device, a data output device, and a display device. Handwritten data can be input with a touch pen and converted to output data. The data input device receives and inputs input data transmitted from another real-time handwritten communication system. The controller device is connected to the touch panel and the data input device, and processes and transmits input data and output data in real time. The data output device is connected to the controller device and transmits output data to another real-time handwritten communication system. The display device displays input data and output data.

  Japanese Unexamined Patent Publication No. 2001-333204 (Patent Document 3) discloses a portable terminal device. According to Japanese Patent Laid-Open No. 2001-333204 (Patent Document 3), the mobile terminal device is input by handwritten data display means capable of color display, handwriting input means provided on the surface of the handwritten data display means, and handwriting input means. Handwritten data holding means for holding a plurality of handwritten data including handwritten data, data display management means for color-combining and combining the plurality of handwritten data held in the handwritten data holding means, and displaying them on the same screen; and handwriting input means The handwritten data holding means for holding the handwritten data input by the handwritten data and the handwritten data of the counterpart terminal, and the handwritten data held in the handwritten data holding means are transmitted to the counterpart terminal in real time and conversely from the counterpart terminal It comprises data communication means for receiving handwritten data and writing it into handwritten data holding means.

  Japanese Unexamined Patent Application Publication No. 2004-234594 (Patent Document 4) discloses a photo communication system. According to Japanese Patent Application Laid-Open No. 2004-234594 (Patent Document 5), an image input unit that receives image data from a memory card of a digital camera, a data recording unit that records image data, an input unit that inputs an instruction from a user, A pair of information communication terminals comprising image display means for displaying recorded images, data communication means for exchanging data such as recorded images with other terminals, and control means for controlling execution of the terminals. In any information communication terminal, if the handwritten graphic element is written by the input means superimposed on the image display means while looking at the image displayed on the image display means, the result of the graffiti including the image is displayed in real time. To be displayed on the information communication terminal.

  Japanese Patent Laying-Open No. 2005-294918 (Patent Document 5) discloses a paid content distribution method. According to Japanese Patent Laying-Open No. 2005-294918 (Patent Document 5), in transferring paid content held by a first wireless terminal to a second wireless terminal, first, the carrier is authorized to transfer to the second wireless terminal. After receiving the transfer, report the transfer completion to the carrier.

  Japanese Unexamined Patent Application Publication No. 2004-295880 (Patent Document 6) discloses a digital media clearing platform. According to JP 2004-295880 (Patent Document 6), peer-to-peer distribution is provided by the Digital Media Clearinghouse Platform (DMCHP). In doing so, the content is transferred in exchange for payment from one peer to the other. When the recipient makes a payment, a portion of the payment is passed to the owner of the rights to the content in accordance with an agreement enforced by DMCHP. Thus, a peer that distributes content in a peer-to-peer system is compensated for the role that the peer played in the distribution of content, and the content owner retains control over the content licensing method and distribution. DMCHP is implemented using a content metadata repository, an online transaction processing engine, and a purchasing user interface.

  For example, a stamp function is known as a typical editing function of handwritten chat software. The user selects one image data from a plurality of image data groups called “stamp data” prepared in advance. The communication terminal transmits the image data to another communication terminal. Other communication terminals display the received image data at a designated location on the drawing (editing) area.

JP 2001-111708 A JP 2003-234842 A JP 2001-333204 A JP 2004-234594 A JP 2005-294918 A JP 2004-295880 A

  However, in order to allow a plurality of people to view common content in a scene where handwriting chat with each other by using their own communication terminals, the communication terminal (terminal A) transmits the content to another communication. While transmitting to the terminal (terminal B), it is necessary to display the content received by terminal B. Here, the user of the terminal A normally obtains the right to use the content from the copyright owner of the content for a fee or free of charge, but the user of the terminal B uses the content. You may not have rights. That is, from the viewpoint of the copyright law, it is not preferable that the user of the terminal B who does not have the right to use the content can freely edit the content or send it to another communication terminal.

  The present invention has been made to solve such a problem, and an object of the present invention is to allow a user of a terminal not having the right to use content to freely edit or transmit content received from another terminal. Providing a communication terminal, a communication method, and a communication program.

  According to an aspect of the present invention, a communication terminal is provided. The communication terminal includes a display, an input device that receives an operation command, a communication unit that transmits / receives data to / from another communication terminal via a network, first information, and first information that indicates the right to use the first information. A first storage unit that stores information associated with authority information, a generation unit that generates content including the first information based on an operation command, and a first included in the content to other communication terminals using the communication unit And the first authority information corresponding to the first information are transmitted, and the second information and the second authority information corresponding to the second information are received from another communication terminal using the communication unit. Communication control means for displaying, and display control means for displaying content including the second information on the display based on the second authority information.

  Preferably, the communication terminal further includes a second storage unit that temporarily stores the second information. The communication control means stores the second information in the first storage unit or the second storage unit based on the second authority information.

  Preferably, the communication control means transmits identification information for specifying the first information to the other communication terminal via the communication unit, and the first information transmitted from the other communication terminal in response to the transmission of the identification information. In response to the information transmission request, the first information is transmitted to another communication terminal via the communication unit.

  Further, preferably, when transmitting the identification information, the first authority information is also transmitted to another communication terminal.

  According to another aspect of the present invention, an arithmetic processing unit, a display, an input device that receives an operation command, a communication unit that transmits / receives data to / from another communication terminal via a network, first information, There is provided a communication method in a communication terminal including a first storage unit that stores the first authority information indicating the authority to use the information. The communication method includes a step in which the arithmetic processing unit generates content including first information based on the operation command, and the arithmetic processing unit uses the communication unit to transmit the first content included in the content to another communication terminal. A step of transmitting the information and the first authority information corresponding to the first information, and a calculation processing unit using the communication unit, the second information and the second information corresponding to the second information from another communication terminal Receiving the second authority information, and the operation processing unit displaying a content including the second information on the display based on the second authority information.

  According to another aspect of the present invention, an arithmetic processing unit, a display, an input device that receives an operation command, a communication unit that transmits / receives data to / from another communication terminal via a network, first information, There is provided a communication program for causing a communication terminal to communicate with a first storage unit that stores information associated with first authority information indicating the authority to use the information. The communication program generates a content including the first information based on the operation command in the arithmetic processing unit, and uses the communication unit to transmit the first information included in the content to the other communication terminal and the first information. Transmitting first authority information corresponding to the information; receiving second information and second authority information corresponding to the second information from another communication terminal using the communication unit; And displaying the content including the second information on the display based on the second authority information.

  As described above, according to the present invention, it is possible to prevent a user of a communication terminal that does not have the right to use content from freely editing or transmitting content received from another terminal. A method and a communication program are provided.

It is the schematic which shows the network system which concerns on this Embodiment. It is a sequence diagram which shows the operation | movement outline | summary in a network system. It is an image figure which shows the external appearance of the mobile telephone which concerns on this Embodiment. It is a block diagram which shows the hardware constitutions of a mobile telephone. It is an image figure which shows the data structure of a stamp management table. It is an image figure which shows the data structure of the transmission data which a communication terminal transmits to another communication terminal. It is a block diagram which shows the function structure of the mobile telephone and network system which concern on this Embodiment. It is a flowchart which shows the process sequence of the main process of P2P communication in the mobile telephone which concerns on this Embodiment. It is an image figure which shows the edit function of the content in the mobile telephone which concerns on this Embodiment. It is a flowchart which shows the process sequence of the stamp information exchange process in the mobile telephone which concerns on this Embodiment. It is a flowchart which shows the process sequence of the stamp transmission process in the mobile telephone which concerns on this Embodiment. It is a flowchart which shows the process sequence of the stamp reception process in the mobile telephone which concerns on this Embodiment. It is a flowchart which shows the process sequence of a stamp reception process in case the stamp data corresponding to the stamp information which the mobile telephone received are an ownership transfer type or a rough data transmission type. It is a flowchart which shows the process sequence of a stamp reception process in case the stamp data corresponding to the stamp information which the mobile telephone received are a non-conversion type. It is a flowchart which shows the process sequence of a stamp reception process in case stamp data corresponding to the stamp information received by the mobile phone is a reproduction code transmission type. It is a flowchart which shows the process sequence of the stamp display process in the mobile telephone which concerns on this Embodiment. It is a flowchart which shows the process sequence of the temporary memory stamp data deletion process in the mobile telephone which concerns on this Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  In the following, the mobile phone 100 will be described as a representative example of the “communication terminal”. However, the communication terminal may be another information communication device such as a personal computer, a car navigation device (Satellite navigation system), a PND (Personal Navigation Device), or a PDA (Personal Digital Assistance).

  In the following, “content” is a concept including a stamp, a photograph, a handwritten image, and a still image and a moving image formed by combining them. “Content data” is a concept including stamp data, photo data, handwritten image data, and still image data and moving image data formed by combining them.

<Overall configuration of network system 1>
First, the network system 1 according to the present embodiment will be described. FIG. 1 is a schematic diagram showing a network system 1 according to the present embodiment. As shown in FIG. 1, the network system 1 includes mobile phones 100A and 100B, a matching server 400, an Internet network (first network) 500, a content server 600, and a carrier network (second network) 700. including. The network system 1 according to the present embodiment includes a car navigation device 200 mounted on a vehicle 250 and a personal computer (PC) 300.

  For ease of explanation, a case will be described in which network system 1 according to the present embodiment includes first mobile phone 100A and second mobile phone 100B. Further, when the configuration and functions common to each of the mobile phones 100A and 100B are described, they are also collectively referred to as “mobile phone 100”. And when explaining a structure and function common to each of mobile phone 100A, 100B, the car navigation apparatus 200, and the personal computer 300, they are also named "communication terminal" generically.

  The mobile phone 100 is configured to be connectable to the carrier network 700. The car navigation device 200 is configured to be connectable to the Internet network 500. The personal computer 300 is configured to be connectable to the Internet network 500 via a LAN (Local Area Network) 350 or a WAN (Wide Area Network). Matching server 400 is configured to be connectable to Internet network 500.

  More specifically, the first mobile phone 100A, the second mobile phone 100B, the car navigation device 200, and the personal computer 300 can be connected to each other via the carrier network 700 and the Internet network 500, Data can be transmitted and received with each other. Further, identification information (for example, a mail address, an IP (Internet Protocol) address, etc.) for specifying the terminal itself is assigned to the mobile phone 100, the car navigation device 200, and the personal computer 300. That is, the mobile phone 100, the car navigation device 200, and the personal computer 300 can store identification information of other communication terminals in an internal recording medium, and the carrier network 700, the Internet network 500, and the like based on the identification information. It is possible to perform data transmission / reception with the other communication terminal via the.

  Note that the cellular phone 100, the car navigation device 200, and the personal computer 300 according to the present embodiment use an IP address assigned to each communication terminal and perform data communication with other communication terminals without using a mail server (not shown). Transmit and receive. Here, when each communication terminal accesses the matching server 400, that is, when each communication terminal accesses the Internet, an IP address is assigned by the matching server 400 or another server device (not shown). Details of the IP address assignment process are well known, and therefore the description will not be repeated here.

  In particular, the mobile phone 100, the car navigation device 200, and the personal computer 300 according to the present embodiment can directly transmit and receive data to and from each other via a network by using an IP address assigned to the mobile phone 100, the car navigation device 200, and the personal computer 300. Is possible. That is, the mobile phone 100, the car navigation device 200, and the personal computer 300 included in the network system 1 according to the present embodiment can constitute a so-called P2P (Pear to Pear) type network.

  The content server 600 is connected to the Internet network 500. The content server 600 stores content such as stamp data and game software. The content server 600 receives requests from the mobile phone 100, the car navigation device 200, and the personal computer 300 via the Internet network 500. The content server 600 distributes various contents to the mobile phone 100, the car navigation device 200, and the personal computer 300 in response to the request. For example, the content server 600 distributes stamp data desired by the user of the mobile phone 100 to the mobile phone 100 for a fee.

<Outline of operation of network system 1>
Next, an outline of the operation of the network system 1 according to the present embodiment will be described. FIG. 2 is a sequence diagram showing an outline of the operation in the network system 1. As shown in FIGS. 1 and 2, each communication terminal according to the present embodiment needs to exchange (acquire) each other's IP address first in order to perform P2P type data transmission / reception. Then, after acquiring the IP address, each communication terminal transmits a message, an attached file, etc. to other communication terminals by P2P type data transmission / reception.

  However, hereinafter, a case will be described in which each of the communication terminals transmits and receives a message and an IP address via the chat room generated in the matching server 400, and then performs P2P communication based on each other's IP address.

  First, first mobile phone 100A (terminal A in FIG. 2) requests content from content server 600 via Internet network 500 in response to a user operation (step S002). Here, the content is a stamp such as an anime character. However, the content may be a photograph, a moving image, or game software. In response to the request, the content server 600 distributes stamp data (first information) for displaying the stamp on the first mobile phone 100A (step S004).

  First mobile phone 100A requests matching server 400 to generate a chat room in response to a user operation (step S006). That is, the first mobile phone 100A requests the matching server 400 for IP registration (login). At the same time, first mobile phone 100A may obtain an IP address from matching server 400, or may obtain an IP address from another server device or the like in advance. More specifically, the first mobile phone 100A sends an IP address of the first mobile phone 100A and a message requesting generation of a new chat room to the matching server 400 via the carrier network 700 and the Internet network 500. Send.

  The user of first mobile phone 100A invites the user of second mobile phone 100B (terminal B in FIG. 2) to chat using first mobile phone 100A or the like (step S008). Second mobile phone 100B enters the chat room according to the user's command (step S010). That is, the second mobile phone 100B enters the chat room by registering the IP address of the second mobile phone 100B in the matching server 400.

  Second mobile phone 100B informs first mobile phone 100A that it has entered the chat room (step S012). That is, second mobile phone 100B transmits the IP address assigned to itself to first mobile phone 100A. First mobile phone 100A and second mobile phone 100B are connected to each other via carrier network 700 and Internet network 500. That is, the first mobile phone 100A and the second mobile phone 100B start P2P communication.

  The first mobile phone 100A receives, via the Internet network 500, summary data including identification information (such as a number and file name uniquely assigned to each stamp) that identifies a stamp owned by the second mobile phone 100A. It transmits to the mobile phone 100B (step S014). At this time, the first mobile phone 100A may transmit authority information indicating the authority to use the corresponding stamp to the second mobile phone 100B together with the outline data of the stamp.

  Second mobile phone 100B receives a selection command from the user and requests stamp data for displaying a stamp on first mobile phone 100A (step S016). Alternatively, second mobile phone 100B requests all stamp data possessed by first mobile phone 100A from first mobile phone 100A. In response to the request, first mobile phone 100A transmits the stamp data to second mobile phone 100B (step S018). At this time, the first mobile phone 100A may transmit the authority information of the corresponding stamp to the second mobile phone 100B.

  Second mobile phone 100B receives the stamp data and stores the stamp data based on the authority information (step S020). At this time, the second mobile phone 100B may display a list of stamps received based on the authority information.

  Similarly, the second mobile phone 100B receives summary data including identification information (such as a number and a file name uniquely assigned to each stamp) that identifies a stamp owned by itself via the Internet network 500. It transmits to the first mobile phone 100A (step S022). First mobile phone 100A receives a selection command from the user, and requests stamp data indicating a stamp from second mobile phone 100B (step S024). Alternatively, the first mobile phone 100A requests all the stamp data owned by the second mobile phone 100B from the second mobile phone 100B. In response to the request, second mobile phone 100B transmits the stamp data to first mobile phone 100A (step S026).

  The first mobile phone 100A receives the stamp data and stores the stamp data based on the authority information (step S028). The first mobile phone 100A may display a list of received stamps based on the authority information.

  The first mobile phone 100A generates image data (first content data) or the like for displaying an image with a stamp that can be used by the user in accordance with an editing command from the user. That is, first mobile phone 100A edits an image using a stamp. At this time, the first mobile phone 100 </ b> A may update (generate) authority information related to the image itself to be edited based on the authority information of the stamp.

  First mobile phone 100A transmits operation information indicating pressing of the stamp or image data for displaying an image on which the stamp has been pressed to second mobile phone 100B (step S030). At this time, first mobile phone 100A displays the image with the stamp pressed (step S032).

  Second mobile phone 100B receives the operation information indicating the pressing of the stamp, and displays the image with the stamp pressed based on the authority information (step S034). Alternatively, the second mobile phone 100B receives the image data, stores the image data based on the authority information corresponding to the image data, and displays the image based on the authority information.

  The second mobile phone 100B further edits the received image data using the stamp data (second information) that can be used in response to an editing command from the user. At this time, the second mobile phone 100B may update the authority information of the edited image data (second content data) itself based on the authority information corresponding to the used stamp.

  Second mobile phone 100B transmits operation information indicating pressing of the stamp or image data after editing to first mobile phone 100A (step S036). At this time, second mobile phone 100B displays the edited image (step S038).

  First mobile phone 100B receives the operation information indicating the pressing of the stamp, stores the edited image data based on the authority information, and displays the image based on the authority information (step S040). In this way, the first mobile phone 100A and the second mobile phone 100B edit the image by repeating the processing from step S030 to step S040. That is, the user of the first mobile phone 100A and the user of the second mobile phone 100B can enjoy handwritten chat while using a desired stamp.

  When receiving the end operation of P2P communication from the user, first mobile phone 100A transmits an end notification to second mobile phone 100B (step S042). At this time, first mobile phone 100A deletes the temporarily stored stamp data and image data (step S044). The second mobile phone 100B receives the end notification and deletes the stored stamp data and image data (step S046). This terminates the P2P communication.

  Here, it is assumed that the user of first mobile phone 100A has acquired the right to use the stamp data stored in first mobile phone 100A in advance for a fee. However, the user of the second mobile phone 100B may not have the right to use stamp data.

  The communication terminal according to the present embodiment transmits stamp data and image data together with authority information to another communication terminal. Therefore, when other communication terminals do not have the right to use stamp data, the stamp is displayed in a predetermined display form, the stamp cannot be pasted on other images, The stamp data cannot be transmitted to other communication terminals. The communication terminal according to the present embodiment and the network system including the communication terminal use such a function, so that the user of the communication terminal that does not have the right to use the content has received from another terminal. Prevent free editing and transmission of content.

  Hereinafter, a configuration of a communication terminal for realizing such a function and a network system including the communication terminal will be described in detail.

<Hardware configuration of mobile phone 100>
A hardware configuration of mobile phone 100 according to the present embodiment will be described. FIG. 3 is an image diagram showing an overview of mobile phone 100 according to the present embodiment. FIG. 4 is a block diagram illustrating a hardware configuration of the mobile phone 100.

  As shown in FIGS. 3 and 4, the mobile phone 100 according to the present embodiment includes a communication device 101 that transmits and receives data to and from an external network, and a volatile memory that temporarily stores programs and various databases. 103, the input part 104, the time measuring part 105 which measures time (time), the control part 106, the display 107, the non-volatile memory 108 which memorize | stores a program and various databases, and the tablet 119 are included.

  Communication device 101 converts communication data from control unit 106 into a communication signal, and transmits the communication signal via an antenna (not shown). Communication device 101 converts a communication signal received via an antenna into communication data, and inputs the communication data to control unit 106.

  The input unit 104 receives information from the user by a key input operation or the like. For example, the input unit 104 includes a numeric keypad and an enter key. The input unit 104 accepts a determination command for confirming an input command, a selection command for selecting a destination address, a transmission command for transmitting mail to another communication terminal, and the like.

  The control unit 106 is realized by a CPU (Central Processing Unit), an MPU (Micro Processing Unit), and the like, and controls each unit of the mobile phone 100. For example, the control unit 106 receives various commands from the user via the input unit 104 or the tablet 119. The control unit 106 transmits / receives data to / from an external communication terminal via the network by using the communication device 101. In the present embodiment, the control unit 106 receives an editing command from the user via the tablet 119 and edits content such as a handwritten image.

  Specifically, the control unit 106 reads the control program from the nonvolatile memory 108 and stores it in the volatile memory 103, and executes the control program while sequentially reading the control program from the volatile memory 103. The control unit 106 reads stamp data, image data, and the like from the nonvolatile memory 108 or the volatile memory 103 and causes the display 107 to display an image with the stamp or stamp pressed. The control unit 106 stores the edited image data in the volatile memory 103 or the nonvolatile memory 108.

  The display 107 according to the present embodiment includes an organic EL (electroluminescence), a liquid crystal panel, or a CRT (Cathode Ray Tube). The display 107 displays a stamp or an image on which the stamp has been pressed based on a signal from the control unit 106.

  In mobile phone 100 according to the present embodiment, tablet 119 is laid on the lower side (back side) of display 107. Thereby, the user can input graphic information and the like into the control unit 106 via the tablet 119 by using, for example, the stylus pen 99 or a finger.

  Display 107 and tablet 119 according to the present embodiment constitute so-called touch panel 150. The display 107 and the tablet 119 may be realized by various types of touch panels, or may be realized by an optical sensor liquid crystal.

  The volatile memory 103 is realized by, for example, a volatile S-RAM (Static-Random Access Memory) or V-RAM (Video Random Access Memory) that functions as a working memory. The volatile memory 103 stores application programs, stamp data, image data, playback codes, and various variables in a volatile manner (temporarily).

  More specifically, as described above, the control unit 106 temporarily stores the received image data and stamp data in the volatile memory 103. The control unit 106 reads the image data from the volatile memory 103 and causes the display 107 to display the image. The control unit 106 reads the stamp data from the volatile memory 103 and causes the display 107 to display the stamp. The control unit 106 temporarily stores the edited image data in the volatile memory 103.

  The non-volatile memory 108 includes, for example, a ROM (Read Only Memory) that stores a control program, an NV-RAM (Non-Volatile Random Access Memory), an HDD (Hard Disk) that stores still image data, moving image data, and the like. Drive) etc. The nonvolatile memory 108 stores in a nonvolatile manner stamps and images that are permitted to be edited. The nonvolatile memory 108 according to the present embodiment stores a stamp management table 108A, usable stamp data 108B, and image data described later.

  More specifically, the control unit 106 reads out image data and stamp data stored in the nonvolatile memory 108 and temporarily stores them in the volatile memory 103. The control unit 106 stores the received stamp data and image data in the volatile memory 103 or the non-volatile memory 108 based on the corresponding authority information. Specifically, the control unit 106 stores, in the nonvolatile memory 108, stamp data and image data that are permitted to be displayed, edited, and transmitted to other communication terminals.

  FIG. 5 is an image diagram showing the data structure of the stamp management table 108A. The stamp management table 108A according to the present embodiment is stored in the nonvolatile memory 108. Hereinafter, for the sake of explanation, a stamp and an image with the stamp attached are also collectively referred to as “content”. Stamp data and image data are also collectively referred to as “content data”.

  Referring to FIG. 5, the nonvolatile memory 108 stores management data for managing the image for each content. That is, the stamp management table 108A includes management data for each content. Each management data includes contID, ownerF, transF, transTP, contPATH [], decodeADR, and contMETA.

  The contID is data (identification information) for identifying each content. That is, identification information is set for each content in the management data.

  ownerF is data indicating the presence or absence of ownership. More specifically, when the value of ownerF is “0” (when the ownership flag is set), the control unit 106 determines that it does not own the target content data. When the value of ownerF is “1” (when the ownership flag is not set), the control unit 106 determines that it owns the target content data.

  transF indicates whether the ownership can be transferred. More specifically, when the value of transF is “1”, the control unit 106 determines that target content data cannot be transferred to another communication terminal. When the value of transF is “0”, the control unit 106 determines that the target content data can be freely transferred to another communication terminal.

  transTP indicates the transfer type of the usage right. transTP indicates whether the target content data is the ownership transfer type, the non-conversion type, the coarse data transmission type, or the reproduction code transmission type. Hereinafter, transTP, transF, ownerF, and the like are collectively referred to as authority information.

  More specifically, when the value of transTP is “0”, the control unit 106 determines that the target content data is the ownership transfer type. When the value of transTP is “1”, the control unit 106 determines that the target content data is a non-conversion type. When the value of transTP is “2”, the control unit 106 determines that the target content data is a coarse data transmission type. When the value of transTP is “3”, the control unit 106 determines that the target content data is a reproduction code transmission type.

  “contPATH []” indicates the address of the storage location of the target content data. Here, the content data is a concept including display data for displaying content, display data for displaying content using a reproduction code, and transfer data for displaying a rough image.

  The decodeADR indicates the address of the storage location of the reproduction code for decoding the display data of the target content data.

  “contMETA” indicates content additional information. contMETA includes URL [] and COPYRIGHT []. URL [] indicates the address of the site that provided the content. COPYRIGHT [] indicates copyright information of the content.

  FIG. 6 is an image diagram illustrating a data structure of transmission data transmitted from a communication terminal to another communication terminal. Referring to FIG. 6, transmission data transmitted from a communication terminal to another communication terminal (or reception data received from another communication terminal) includes a content ID, usage authority information, display data, transfer data, and a reproduction code. . The control unit 106 transmits transmission data via the communication device 101 and receives reception data via the communication device 101.

  The content ID is information for identifying each content data. The usage authority information is information for indicating whether display is possible, whether editing is possible, and whether transmission is possible. The display data is so-called image data for displaying a handwritten image or a photographic image with a stamp pressed. The transfer data is so-called image data for displaying a rough image such as a handwritten image or a photographic image. For example, the transfer data is generated by lowering the resolution of the display data. Alternatively, the transfer data represents a thumbnail image of display data. The reproduction code is a key for decrypting the display data, and the control unit 106 displays an image on the display 107 based on the display data by using the reproduction code.

<Functional configuration of mobile phone 100>
FIG. 7 is a block diagram showing a functional configuration of mobile phone 100 (communication terminal) and network system according to the present embodiment. Referring to FIG. 7, the network system according to the present embodiment includes a first mobile phone 100A and a second mobile phone 100B that can be connected to each other via Internet network 500 or the like. In the following, functions of first mobile phone 100A will be mainly described.

  The mobile phone 100 includes a generation unit 1061, a communication control unit 1062, and a display control unit 1063. As described above, the mobile phone 100 includes the display 107, the tablet 119, the volatile memory 103, the nonvolatile memory 108, and the communication device 101.

  As described above, the tablet 119 receives handwriting input, software key input, and the like from the user, and stores input information corresponding to the input operation in the volatile memory 103. The tablet 119 realizes a reception unit that receives various inputs from the user. More specifically, the tablet 119 inputs the position where the user's finger is in contact with the control unit 106. Alternatively, the tablet 119 receives a trajectory in which the user touches the touch panel 150 as handwritten input, and passes handwritten information corresponding to the handwritten input to the control unit 106. The control unit 106 stores the handwritten information in the volatile memory 103.

  The display 107 displays an image or text based on data from the control unit 106. Specifically, the display 107 displays the content with the stamp pressed based on data from the control unit 106. Alternatively, the display 107 displays a handwritten image corresponding to the handwritten input received by the tablet 119 and a handwritten image corresponding to the handwritten information received by the communication device 101 in an overlapping manner.

  The communication device 101 is realized by a communication antenna or a signal processing unit (not shown). The communication device 101 transmits handwritten information corresponding to the handwritten input accepted by the tablet 119, content data such as a selected stamp or photo, and authority information corresponding to the content data to another communication terminal. The communication device 101 receives content data and authority information from another communication terminal, and inputs the content data to the control unit 106. The control unit 106 stores the received content data in the volatile memory 103 or the nonvolatile memory 108 based on the authority information.

  The volatile memory 103 is, for example, a work memory (S-RAM or the like) that temporarily (variably) stores various variables, content data, and the like, and a display memory (VRAM or the like) that stores content displayed on the display 107 or the like. ). The nonvolatile memory 108 includes, for example, an NV-RAM or HDD that stores the stamp management table 108A, stamp data 108B, content data, and the like in a nonvolatile manner.

  The generation unit 1061, the communication control unit 1062, and the display control unit 1063 are functions realized by the control unit 106 and the like. More specifically, each function of the control unit 106 is realized by the control unit 106 executing a control program stored in the volatile memory 103 or the like to control each piece of hardware shown in FIG. It is a function. For example, the control unit 106 reads a program stored in advance in the nonvolatile memory 108 into the work memory of the volatile memory 103. And the control part 106 implement | achieves said function block by running the program of the volatile memory 103 sequentially.

  The generation unit 1061 edits (generates) content according to an editing command input via the tablet 119. More specifically, the generation unit 1061 updates content data stored in the volatile memory 103 in accordance with an editing command from the user. Here, the editing command includes a command for selecting a stamp, a command for pressing the stamp, a handwritten input command, and the like by the user.

  For example, the generation unit 1061 writes handwritten characters on a photographic image in response to handwriting input, or presses a stamp on the image in response to a stamp selection command. The generation unit 1061 stores the edited content data in the display memory of the volatile memory 103. That is, the generation unit 1061 generates image data with a stamp pressed as the content data. The generation unit 1061 edits the content data based on the editing content received from the second mobile phone 100B. Then, the generation unit 1061 delivers the edited content data and corresponding authority information to the communication control unit 1062 and the display control unit 1063.

  The communication control unit 1062 uses the communication device 101 to perform P2P communication with other communication terminals. More specifically, the communication control unit 1062 uses the communication device 101 to acquire its own IP address and the IP address of another communication terminal from another server device or the like, so that it can communicate with other communication terminals. It starts transmitting / receiving data directly using the IP address.

  Communication control unit 1062 according to the present embodiment uses communication device 101 to transmit data indicating editing content to other mobile phone 100 (second mobile phone 100B) via Internet network 500 or the like. For example, the communication control unit 1062 transmits stamp data (first information) indicating the selected stamp and the coordinates where the stamp is pressed, or transmits data indicating the locus of handwriting input.

  Alternatively, the communication control unit 1062 transmits the edited content data to another mobile phone 100 (second mobile phone 100B) via the Internet network 500 or the like. At this time, the communication control unit 1062 transmits the authority information corresponding to the content data together with the edited content data.

  Further, the communication control unit 1062 uses the communication device 101 to receive data indicating the editing content from the other mobile phone 100 (second mobile phone 100B), or content edited by the other mobile phone 100 Receive data. At this time, the communication control unit 1062 receives the stamp data authority information together with the stamp data as the editing content. Alternatively, the communication control unit 1062 receives the authority information of the stamp corresponding to the content data together with the edited content data.

  Then, the communication control unit 1062 delivers the stamp data and authority information received from the other mobile phone 100 to the generation unit 1061 and the display control unit 1063. In addition, the communication control unit 1062 stores the stamp data and authority information received from the other mobile phone 100 in the volatile memory 103 or the nonvolatile memory 108.

  More specifically, the communication control unit 1062 stores the stamp data in the volatile memory 103 or the nonvolatile memory 108 based on the usage right type corresponding to the stamp (one type of content) included in the content. That is, the communication control unit 1062 stores the content data in the nonvolatile memory 108 when the usage right type related to the content that the communication control unit 1062 does not own is the ownership transfer type, the coarse data transmission type, or the reproduction code transmission type. The communication control unit 1062 stores the content data in the volatile memory 103 when the usage right type regarding the content that the communication control unit 1062 does not own is the non-conversion type.

  Communication control unit 1062 according to the present embodiment receives a first transmission request from another communication terminal via communication device 101. The communication control unit 1062 transmits stamp information indicating an outline of the stamp data and authority information corresponding to the stamp information to another communication terminal via the communication device 101. Then, the communication control unit 1062 receives a second transmission request from another communication terminal via the communication device 101. The communication control unit 1062 transmits stamp data and authority information corresponding to the stamp data to another communication terminal via the communication device 101.

  The display control unit 1063 displays content on the display 107 based on the content data edited by the generation unit 1061 based on an editing command from the user. Further, the display control unit 1063 displays the edited content on the display 107 based on the content data edited by the generation unit 1061 based on the editing content received from the second mobile phone 100B. Alternatively, when the communication control unit 1062 receives content data edited from another mobile phone 100, the display control unit 1063 displays the content on the display 107 based on the content data.

  More specifically, the display control unit 1063 displays the content based on the content data and the usage right type of the stamp included in the content data. That is, when the right-of-use type related to the content not owned by the display control unit 1063 is the ownership transfer type or the non-conversion type, the display control unit 1063 displays the content based on the display data of the content data. The display control unit 1063 displays a coarse image based on the transfer data of the content data when the usage right type related to the content that it does not own is the coarse data transmission type. The display control unit 1063 displays the content based on the reproduction code of the content data and the display data when the usage right type related to the content not owned by the display control unit 1063 is the reproduction code transmission type.

  Since the function of second mobile phone 100B is the same as that of first mobile phone 100A, description thereof will not be repeated here.

<Main processing of P2P communication>
Next, main processing of P2P communication in mobile phone 100 according to the present embodiment will be described. FIG. 8 is a flowchart showing a processing procedure of main processing of P2P communication in mobile phone 100 according to the present embodiment.

  Referring to FIG. 8, control unit 106 displays a list of a plurality of stamps on display 107 so as to be selectable (step S102). That is, the control unit 106 causes the display 107 to display a list of reduced images of the stamp specified by the contID and contPATH of the stamp with ownerF = 1 stored in STMPTBL. The control unit 106 receives a stamp selection command from the user via the tablet 119. The control unit 106 stores the storage location of the selected stamp in the variable MySTMP of the volatile memory 103 (step S104). That is, the control unit 106 acquires the address of the stamp selected with reference to the stamp management table 108A.

  Then, the control unit 106 executes stamp information exchange processing (step S200). The stamp information exchange process (step S200) will be described later.

  The control unit 106 determines whether an operation command (edit command) for performing normal drawing is received from the user via the tablet 119 (step S106). When the control unit 106 receives an operation command for performing normal drawing (YES in step S106), the control unit 106 displays the drawing content via the display 107 (step S108). The control unit 106 transmits an operation command for performing normal drawing to another communication terminal via the communication device 101 (step S110). However, the control unit 106 transmits the edited content data via the communication device 101. Then, the control part 106 repeats the process from step S106.

  When control unit 106 does not accept an operation command for performing normal drawing (NO in step S106), control unit 106 issues an operation command for performing normal drawing from another communication terminal via communication device 101. It is determined whether or not it has been received (step S112). When the control unit 106 receives an operation command for normal drawing (YES in step S112), the control unit 106 displays the drawing content on the display 107 based on the received operation command (step S114). Then, the control part 106 repeats the process from step S106.

  If the control unit 106 does not accept an operation command for performing normal drawing (NO in step S112), whether or not an operation command for pressing a stamp is received from the user via the tablet 119. Is determined (step S116). When the control unit 106 receives an operation command for pressing the stamp (YES in step S116), the control unit 106 stores the value of MySTMP in DSPSTMP of the volatile memory 103 (step S118). The control unit 106 executes stamp display processing (step S300). Then, the control part 106 repeats the process from step S106.

  When control unit 106 does not accept an operation command for pressing a stamp (NO in step S116), control unit 106 has received an operation command for pressing a stamp from another communication terminal via communication device 101. Whether or not (step S120). When the control unit 106 receives an operation command for pressing the stamp from another communication terminal (YES in step S120), the control unit 106 stores the HisSTMP value in DSPSTMP of the volatile memory 103 (step S122). . The control unit 106 executes stamp display processing (step S300). Then, the control part 106 repeats the process from step S106.

  When control unit 106 does not receive an operation command for pressing a stamp from another communication terminal (NO in step S120), control unit 106 terminates the application from the user via input unit 104 or tablet 119. It is determined whether an operation command has been accepted (step S124). When the control unit 106 receives an operation command to end the application (YES in step S124), the control unit 106 transmits a message to end the application to another communication terminal via the communication device 101 ( Step S128). Then, the control part 106 repeats the process from step S130.

  If the control unit 106 does not receive an operation command to end the application (NO in step S124), has the control unit 106 received a message to end the application from another communication terminal via the communication device 101? It is determined whether or not (step S126). If control unit 106 does not receive a message to end the application (NO in step S126), control unit 106 repeats the processing from step S106.

  When the control unit 106 receives a message to terminate the application from another communication terminal (YES in step S126), the control unit 106 stores the jointly generated data (display data after editing in the nonvolatile memory 108 (step S126). After that, the control unit 106 performs a temporary storage stamp information deletion process (step S400), and the control unit ends the main process of P2P communication.

<Overview of image editing function>
Here, an image editing function in mobile phone 100 according to the present embodiment will be described. FIG. 9 is an image diagram showing a content editing function in mobile phone 100 according to the present embodiment. More specifically, FIG. 9A is an image diagram showing a state where a stamp is selected. FIG. 9B is an image diagram showing a state of designating a position where the stamp is pressed. FIG. 9C is an image diagram illustrating a state in which a command for pressing a stamp is input. FIG. 9D is an image diagram showing an image (finished image) after the stamp is pressed.

  Referring to FIGS. 3 and 9A, the user performs handwriting input on mobile phone 100 via tablet 119 using stylus pen 99 or the like. Then, the user uses the stylus pen 99 to select a desired stamp from among the stamps displayed in a selectable list. Here, the user selects a stamp by pressing the desired stamp using the stylus pen 99.

  Referring to FIG. 9B, the user touches a desired stamp via stylus pen 99, and then moves the stylus pen 99 to a position where the stamp is desired to be pressed. Referring to FIG. 9C, the user determines a position to press the stamp by bringing the stylus pen 99 into contact with a position on the tablet 119 where the stamp is desired to be pressed. Accordingly, the control unit 106 receives a position where the stamp should be pressed via the tablet 119. The control unit 106 displays a stamp on an image such as a handwritten image based on the position. Referring to FIG. 9D, finally, control unit 106 causes display 107 to display an image on which a stamp desired by the user has been pressed.

<Stamp information exchange process>
Next, stamp information exchange processing in mobile phone 100 according to the present embodiment will be described. FIG. 10 is a flowchart showing a processing procedure of stamp information exchange processing in the mobile phone according to the present embodiment. Referring to FIG. 10, control unit 106 determines whether or not stamp information has been received from another communication terminal via communication device 101 (step S202). When the stamp information is not received from another communication terminal (NO in step S202), control unit 106 executes a stamp transmission process (step S500). Then, the control unit 106 executes stamp reception processing (step S600). The stamp transmission process (step S500) and the stamp reception process (step S600) will be described later.

  When the stamp information is received from another communication terminal (YES in step S202), control unit 106 executes stamp reception processing (step S600). Then, the control unit 106 executes stamp transmission processing (step S500).

<Stamp transmission processing>
Next, stamp transmission processing in mobile phone 100 according to the present embodiment will be described. FIG. 11 is a flowchart showing a processing procedure of stamp transmission processing in mobile phone 100 according to the present embodiment.

  Referring to FIG. 11, control unit 106 refers to nonvolatile memory 108 and transmits stamp information regarding stamp data owned by itself to another communication terminal using communication device 101 (step S502). In the following, STMPTBL [MySTMP]. Let contID be per1. STMPTBL [MySTMP]. Let transF be per2. STMPTBL [MySTMP]. Let transTP be per3. STMPTBL [MySTMP]. Let contMETA be per4.

  The control unit 106 determines whether or not a non-request message has been received from another communication terminal via the communication device 101 (step S504). When the non-request message is received from another communication terminal (YES in step S504), control unit 106 ends the stamp transmission process (step S500).

  If control unit 106 has not received a non-request message from another communication terminal (NO in step S504), control unit 106 has received a request to transmit a playback code from another communication terminal via communication device 101. It is determined whether or not (step S506). When the control unit 106 receives a request for transmitting a reproduction code from another communication terminal (YES in step S506), the control unit 106 transmits the reproduction code of the target stamp to the other code via the communication device 101. It transmits to the communication terminal (step S508). Thereafter, the control unit 106 repeats the processing from step S504.

  When control unit 106 does not receive a request to transmit a playback code from another communication terminal (NO in step S506), control unit 106 transmits stamp data from the other communication terminal via communication device 101. It is determined whether or not the request has been accepted (step S510). If control unit 106 does not accept a request to transmit stamp data from another communication terminal (NO in step S510), control unit 106 repeats the processing from step S504.

  When the control unit 106 receives a request to transmit stamp data from another communication terminal (YES in step S510), the control unit 106 refers to the volatile memory 103 and stores 0 in per3. It is determined whether or not (step S512). If 0 is stored in per3 (YES in step S512), that is, if the target stamp is the ownership transfer type, all data (display data) regarding the target stamp Is transmitted to the other communication terminal using the communication device 101 (step S514). Thereafter, the control unit 106 repeats the processing from step S504.

  When the controller 106 refers to the volatile memory 103 and 0 is not assigned to per3 (NO in step S512), the controller 106 refers to the volatile memory 103 and 1 is assigned to per3. It is determined whether or not there is (step S516). When 1 is assigned to per3 (YES in step S516), that is, when the target stamp is a non-conversion type, control unit 106 transmits the display data of the target stamp to communication device 101. To the other communication terminal (step S518). Thereafter, the control unit 106 repeats the processing from step S504.

  If 1 is not assigned to per3 (NO in step S516), control unit 106 refers to volatile memory 103 to determine whether 2 is assigned to per3 (step S520). ). When 2 is assigned to per3 (YES in step S520), that is, when the target stamp is a coarse data transmission type, control unit 106 transmits the transfer data of the target stamp to communication device 101. To the other communication terminal (step S522). Thereafter, the control unit 106 repeats the processing from step S504.

  When 2 is not stored in per3 (NO in step S520), that is, when the target stamp is a reproduction code transmission type, control unit 106 transmits the display data of the target stamp to communication device 101. To the other communication terminal (step S524). The control unit 106 ends the stamp transmission process (step S500).

<Stamp reception processing>
Next, stamp reception processing in mobile phone 100 according to the present embodiment will be described. FIG. 12 is a flowchart showing a processing procedure of stamp reception processing in mobile phone 100 according to the present embodiment.

  Referring to FIG. 12, control unit 106 receives stamp information from another communication terminal via communication device 101 (step S602). The control unit 106 determines whether or not the stamp information relates to a stamp managed by the stamp management table 108A (step S604). When the received stamp information relates to the stamp managed by the stamp management table 108A (YES in step S604), the control unit 106 sets the received stamp information in the variable HisSTMP of the volatile memory 103. The address where the corresponding stamp data is stored is stored (step S606).

  The control unit 106 determines whether or not the stamp data corresponding to the received stamp information is owned by itself (step S608). When the stamp data corresponding to the received stamp information is pre-owned by the control unit 106 (YES in step S608), the control unit 106 does not request a stamp from another communication terminal via the communication device 101. A message is transmitted (step S610). The control unit 106 ends the stamp reception process (step S600).

  If the stamp data corresponding to the received stamp information is not owned by itself (NO in step S608), the control unit 106 determines whether 2 is stored in the per3 of the volatile memory 103. Judgment is made (step S612). If 2 is stored in per3 of volatile memory 103 (YES in step S612), control unit 106 executes the processing from step S610.

  If 2 is not stored in per3 of volatile memory 103 (NO in step S612), control unit 106 determines whether 3 is stored in per3 of volatile memory 103 (step S612). S614). If 3 is stored in per3 of volatile memory 103 (YES in step S614), control unit 106 executes processing from step S688 described later.

  If 3 is not stored in per3 of volatile memory 103 (NO in step S614), control unit 106 executes processing from step S662 described later.

  If the stamp corresponding to the received stamp information is not managed by the stamp management table 108A (NO in step S604), the control unit 106 assigns 0 to the ownerF of the volatile memory 103 (step S604). S622). The control unit 106 determines whether 0 is stored in per2 of the volatile memory 103 (step S624).

  When 0 is stored in per2 of volatile memory 103 (YES in step S624), control unit 106 stores 1 in ownerF of volatile memory 103 (step S626). The control unit 106 updates the value of the stamp management table 108A (step S628). More specifically, the control unit 106 uses the STMPTBL [ccnt]. The value of per1 is stored in contID. The control unit 106 uses the STMPTBL [ccnt]. The value of ownerF is substituted for ownerF. The control unit 106 uses the STMPTBL [ccnt]. The value of per2 is substituted for transF. The control unit 106 uses the STMPTBL [ccnt]. The value of per3 is substituted for transTP. The control unit 106 uses the STMPTBL [ccnt]. The value of per4 is substituted for contMETA. The control unit 106 substitutes the value of ccnt for HisSTMP in the volatile memory 103. The control unit 106 increments ccnt of the volatile memory 103.

  If 0 is not stored in per2 of volatile memory 103 (NO in step S624), control unit 106 executes the processing from step S628 without executing step S626.

  After executing Step S628, the control unit 106 determines whether 0 or 2 is stored in per3 of the volatile memory 103 (Step S630). If 0 or 2 is stored in per3 of volatile memory 103 (YES in step S630), control unit 106 executes processing from step S652 described later.

  When neither 0 nor 2 is stored in per3 of volatile memory 103 (NO in step S630), control unit 106 determines whether 1 is stored in per3 of volatile memory 103 or not. (Step S632). If 1 is stored in per3 of volatile memory 103 (YES in step S632), control unit 106 executes processing from step S662 described later.

  If 1 is not stored in per3 of volatile memory 103 (NO in step S632), control unit 106 executes processing from step S682 described later.

  Next, stamp reception processing when the stamp data corresponding to the stamp information received by the mobile phone 100 is the ownership transfer type or the coarse data transmission type will be described. FIG. 13 is a flowchart showing the processing procedure of the stamp reception process when the stamp data corresponding to the stamp information received by the mobile phone 100 is the ownership transfer type or the coarse data transmission type.

  Referring to FIG. 13, when stamp data corresponding to stamp information received from another communication terminal is the ownership transfer type or the coarse data transmission type, control unit 106 transmits the other communication via communication device 101. A message requesting transmission of stamp data is transmitted to the terminal (step S652). The control unit 106 stores the received stamp data in the stamp data storage area of the nonvolatile memory 108 (step S654). The control unit 106 registers the storage address of the stamp data 108B in the stamp management table 108A (step S656). The control unit 106 transmits a non-request message to another communication terminal via the communication device 101 (step S658). Then, the control unit 106 ends the stamp reception process (step S600).

  Next, stamp reception processing when the stamp data corresponding to the stamp information received by the mobile phone 100 is a non-conversion type will be described. FIG. 14 is a flowchart showing the processing procedure of the stamp reception process when the stamp data corresponding to the stamp information received by the mobile phone 100 is the non-conversion type.

  Referring to FIG. 14, when stamp data corresponding to the received stamp information is a non-conversion type, control unit 106 transmits a message requesting transmission of stamp data to another communication terminal via communication device 101. (Step S662). The control unit 106 stores the stamp data received from another communication terminal in the temporary storage area of the volatile memory 103 (step S664). The control unit 106 registers the storage address of the stamp data in the stamp management table 108A (Step S668). The control unit 106 transmits a non-request message to another communication terminal via the communication device 101 (step S670). Then, the control unit 106 ends the stamp reception process (step S600).

  Next, stamp reception processing when the stamp data corresponding to the stamp information received by the mobile phone 100 is a reproduction code transmission type will be described. FIG. 15 is a flowchart showing the processing procedure of the stamp reception process when the stamp data corresponding to the stamp information received by the mobile phone 100 is a reproduction code transmission type.

  Referring to FIG. 15, when stamp data corresponding to the received stamp information is a reproduction code transmission type, control unit 106 sends a message requesting transmission of stamp data to another communication terminal via communication device 101. Transmit (step S682). The control unit 106 stores the received stamp data in the stamp data storage area of the nonvolatile memory 108 (step S684). The control unit 106 registers the storage address of the stamp data 108B in the stamp management table 108A (step S686).

  The control unit 106 transmits a message requesting transmission of a reproduction code to another communication terminal via the communication device 101 (step S688). The control unit 106 stores the received reproduction code in the temporary storage area of the volatile memory 103 (step S690). The control unit 106 registers the storage address of the reproduction code in the stamp management table 108A (step S692). The control unit 106 transmits a non-request message to another communication terminal via the communication device 101 (step S694). Then, the control unit 106 ends the stamp reception process (step S600).

<Stamp display processing>
Next, stamp display processing in mobile phone 100 according to the present embodiment will be described. FIG. 16 is a flowchart showing a processing procedure of stamp display processing in the mobile phone according to the present embodiment.

  Referring to FIG. 16, control unit 106 sets various local variables of volatile memory 103 (step S302). More specifically, the control unit 106 sets STMPTBL [DSPSTMP]. Substitute the value of transF. The control unit 106 adds STMPTBL [DSPSTMP] .TP to transTP of the volatile memory 103. Substitute the value of transTP. The control unit 106 sets STMPTBL [DSPSTMP]. Substitute the value of contPATH. The control unit 106 adds STMPTBL [DSPSTMP]. Substitute the value of decodeADR.

  The control unit 106 determines whether 0 is stored in transF of the volatile memory 103 (step S304). When 0 is stored in transF of the volatile memory 103 (YES in step S304), that is, when the stamp data is the ownership transfer type, the control unit 106 stores the stamp data in the stamp management table 108A. The display data of the stamp data 108B in the nonvolatile memory 108 is read with reference to the storage address (step S306). Based on the display data of the read stamp data 108B, the control unit 106 causes the display 107 to display a stamp at the stamp pressing position received via the tablet 119 (step S306). The control unit 106 ends the stamp display process (step S300).

  If 0 is not stored in transF of volatile memory 103 (NO in step S364), control unit 106 determines whether 1 is stored in transTP of volatile memory 103 (step S364). S308). When 1 is stored in transTP of volatile memory 103 (YES in step S308), that is, when stamp data is a non-conversion type, control unit 106 refers to contPATH of volatile memory 103. The display data of the stamp data stored in the temporary storage area of the volatile memory 103 is read (step S310). Based on the display data, the control unit 106 causes the display 107 to display a stamp at the stamp pressing position received via the tablet 119. The control unit 106 ends the stamp display process (step S300).

  If 1 is not stored in transTP of volatile memory 103 (NO in step S308), control unit 106 determines whether 2 is stored in transTP of volatile memory 103 (step S308). S312). If 2 is stored in transTP of the volatile memory 103 (YES in step S312), that is, if the stamp data is a coarse data transmission type, the control unit 106 refers to contPATH in the volatile memory 103. Then, the transfer data of the stamp data stored in the stamp data storage area of the nonvolatile memory 108 is read (step S314). Based on the transfer data, the control unit 106 causes the display 107 to display a stamp at the stamp pressing position received via the tablet 119. The control unit 106 ends the stamp display process (step S300).

  When 2 is not stored in transTP of the volatile memory 103 (NO in step S312), the control unit 106 refers to the contPATH of the volatile memory 103, and stores the stamp data storage area of the nonvolatile memory 108 Is converted into display data using the reproduction code stored in the temporary storage area of the volatile memory 103 (step S316). Based on the converted display data, the control unit 106 causes the display 107 to display a stamp at the stamp pressing position received via the tablet 119. The control unit 106 ends the stamp display process (step S300).

<Temporary storage stamp data deletion processing>
Next, temporary storage stamp data deletion processing in the mobile phone 100 according to the present embodiment will be described. FIG. 17 is a flowchart showing a processing procedure of temporary storage stamp data deletion processing in the mobile phone according to the present embodiment.

  Referring to FIG. 17, the control unit 106 sets various local variables in the volatile memory 103 (step S402). More specifically, the control unit 106 sets STMPTBL [HisSTMP]. Substitute the value of ownerF. The control unit 106 adds STMPTBL [HisSTMP]. Substitute the value of transTP. The control unit 106 sets STMPTBL [HisSTMP]. Substitute the value of contPATH. The control unit 106 adds STMPTBL [HisSTMP]. Substitute the value of decodeADR.

  The control unit 106 determines whether 0 is stored in the ownerF of the volatile memory 103 (step S404). If 0 is stored in ownerF of volatile memory 103 (YES in step S404), control unit 106 ends the temporary storage stamp data deletion process (step S400).

  If 0 is not stored in ownerF of volatile memory 103 (NO in step S404), control unit 106 determines whether 0 is stored in transTP of volatile memory 103 (step S404). S406). When 0 is stored in transTP of volatile memory 103 (YES in step S406), control unit 106 ends the temporary storage stamp data deletion process (step S400).

  If 0 is not stored in transTP of the volatile memory 103 (NO in step S406), it is determined whether 1 is stored in transTP of the volatile memory 103 (step S408). If 1 is stored in transTP of the volatile memory 103 (YES in step S408), the control unit 106 deletes the stamp data stored in the temporary storage area of the volatile memory 103 (step S408). S410). The control unit 106 uses the STMPTBL [HisSTMP]. The value of contPATH is initialized (step S412). The control unit 106 ends the temporary storage stamp data deletion process (step S400).

  If 1 is not stored in transTP of volatile memory 103 (NO in step S408), control unit 106 determines whether 2 is stored in transTP of volatile memory 103 (step S408). S414). If 2 is stored in transTP of volatile memory 103 (YES in step S414), control unit 106 ends the temporary storage stamp data deletion process (step S400).

  If 2 is not stored in transTP of volatile memory 103 (NO in step S414), control unit 106 deletes the reproduction code stored in decodeADR in the temporary storage area of volatile memory 103. (Step S416). The control unit 106 uses the STMPTBL [HisSTMP]. The value of decodeADR is initialized (step S418). The control unit 106 ends the temporary storage stamp data deletion process (step S400).

<Other embodiments>
It goes without saying that the present invention can also be applied to a case where it is achieved by supplying a program to a system or apparatus. Then, a storage medium storing a program represented by software for achieving the present invention is supplied to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the program code stored in the storage medium It is possible to enjoy the effects of the present invention also by reading and executing.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

  As a storage medium for supplying the program code, for example, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile memory card (IC memory card), ROM (mask ROM, flash) EEPROM, etc.) can be used.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) running on the computer based on the instruction of the program code However, it is needless to say that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the storage medium is written to a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1 network system, 99 stylus pen, 100, 100A, 100B mobile phone, 101 communication device, 103 volatile memory, 104 input unit, 105 timing unit, 106 control unit, 1061 generation unit, 1062 communication control unit, 1063 display control unit 107 Display, 108 Non-volatile memory, 108A Stamp management table, 108B Stamp data, 119 Tablet, 200 Car navigation device, 300 Personal computer, 400 Matching server, 500 Internet network, 600 Content server, 700 Carrier network

Claims (6)

Display,
An input device that accepts operation instructions;
A communication unit that transmits and receives data to and from other communication terminals via a network;
A first storage unit that stores first information in association with first authority information indicating authority to use the first information;
Generating means for generating content including the first information based on the operation command;
The communication unit is used to transmit the first information included in the content and the first authority information corresponding to the first information to the other communication terminal, and the communication unit is used to transmit the other information. Communication control means for receiving second information and second authority information corresponding to the second information from the communication terminal;
A communication terminal comprising: display control means for displaying the content including the second information on the display based on the second authority information. A second storage unit for temporarily storing the second information;
The communication terminal according to claim 1, wherein the communication control unit stores the second information in the first storage unit or the second storage unit based on the second authority information. The communication control means includes
Transmitting identification information for identifying the first information to the other communication terminal via the communication unit;
In response to the transmission request for the first information transmitted from the other communication terminal in response to the transmission of the identification information, the first information is transmitted to the other communication terminal via the communication unit. The communication terminal according to claim 1 or 2.   The communication terminal according to claim 3, wherein the communication control unit transmits the first authority information to the other communication terminal when transmitting the identification information. An arithmetic processing unit;
Display,
An input device that accepts operation instructions;
A communication unit that transmits and receives data to and from other communication terminals via a network;
A communication method in a communication terminal comprising: a first storage unit that stores first information in association with first authority information indicating use authority of the first information,
The arithmetic processing unit generating content including the first information based on the operation command;
The arithmetic processing unit transmits the first information included in the content and the first authority information corresponding to the first information to the other communication terminal using the communication unit; ,
The arithmetic processing unit using the communication unit to receive second information and second authority information corresponding to the second information from the other communication terminal;
And a step of displaying the content including the second information on the display based on the second authority information. An arithmetic processing unit;
Display,
An input device that accepts operation instructions;
A communication unit that transmits and receives data to and from other communication terminals via a network;
A communication program for causing a communication terminal to communicate first information with a first storage unit that stores the first information in association with first authority information indicating the authority to use the first information,
The communication program is stored in the arithmetic processing unit.
Generating content including the first information based on the operation command;
Transmitting the first information included in the content and the first authority information corresponding to the first information to the other communication terminal using the communication unit;
Using the communication unit to receive second information and second authority information corresponding to the second information from the other communication terminal;
And causing the display to display the content including the second information based on the second authority information.

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