JP5601387B2 - Terminal device and program - Google Patents

Description

The present invention relates to an end terminal device.

  In a conventional server-client system, for example, there is a server-based computing system (SBC system) that activates and executes a desired application program on the server device side by remote operation from the client device. In this SBC system, display screen data that is processed and updated on the server device side in response to an operation input of the client device is transmitted and transferred from the server device to the client device each time the screen is updated. As a result, the client device only needs to have a minimum function such as display and input, and resources such as applications are centrally managed by the server device.

  As described above, since the application program is executed on the server device, the SBC system can realize a highly functional computing environment even when the performance of the client device is low.

  In a server-based computing system having a plurality of server devices in parallel, when a client device requests an application program to be launched, a server device having an optimal execution environment is determined, and multi-user and multi-tasking is performed. A technique for realizing the operation of the same application has been considered (see, for example, Patent Document 1).

  Even when each client device, which is a plurality of types of dedicated terminals, is connected to one server device, it is not necessary for the user to set a different execution environment for each client device, and the optimum work required for each user A server-based computing system that can be adapted to each terminal screen size has been considered (see, for example, Patent Document 2).

2004-192348 2007-179108

  In the conventional server-based computing system, for example, the same user works by connecting to the server device by a portable terminal type client device when going out, and by a desktop PC type client device when returning from the office. The same work may be continued by connecting to the server device.

  In such a case, each time the user logs off the connected portable terminal type client device that was used outside, and then logged on the desktop PC type client device in the office, the client device Must be switched.

The present invention, when switching from the information management device of the terminal device that receives the information is intended to be possible to easily switch between maintaining that information.

The invention according to claim 1 is a terminal device that receives and outputs information from an information management device, and transmits information from the information management device in a state where information is received and output from the information management device. An instruction acquisition unit that acquires a switching instruction to switch the destination to the second terminal device; and when the switching instruction is acquired by the instruction acquisition unit, the information output from the terminal device should be output by the second terminal device When the switching instruction is acquired by the information converting means for converting the information and the instruction acquiring means, the second terminal apparatus should output the information until the information switching from the information management apparatus is completed. Transmitting means for transmitting the information to the second terminal device.

According to a fourth aspect of the present invention, there is provided a terminal device that receives and outputs information from an information management device, wherein the second terminal device receives and outputs information from the information management device. An instruction acquisition unit that acquires a switching instruction for switching the information transmission destination from the second terminal device to the terminal device, and when the instruction acquisition unit acquires the switching instruction, information switching from the information management device is performed. Information receiving means for receiving the information at that time from the second terminal device in order to cause the terminal device to output the information at that time which has been output at the second terminal device until completion. An output unit that outputs the information received by the information receiving unit and then receives and outputs new information from the information management device after switching of the information transmission destination in the information management device is completed. Characterized by comprising a and.

ADVANTAGE OF THE INVENTION According to this invention, when switching the terminal device which receives information from an information management apparatus , it becomes possible to switch easily, maintaining the information .

1 is a block diagram showing a configuration of an SBC (Server Based Computing) system according to an embodiment of the present invention. The figure which shows the state of the display screen accompanying the connection switching between the client apparatus (A) 20a, (B) 20b, ... with respect to the server apparatus 10 of the SBC system. The block diagram which shows the circuit structure of the server apparatus 10 in the said SBC system. The block diagram which shows the circuit structure of the client apparatus 20a (20b) in the said SBC system. The figure which shows the whole operation | movement sequence of the said SBC system. The flowchart which shows the server process by the server apparatus 10 of the said SBC system. 5 is a flowchart showing client switching processing accompanying server processing of the server device 10; The flowchart which shows the client process by the client apparatus (A: switching origin) 20a of the said SBC system. The flowchart which shows the screen resizing process accompanying the client process of the said client apparatus (A: switching origin) 20a. The flowchart which shows the client process by the client apparatus (B: switching destination) 20b of the said SBC system.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an SBC (Server Based Computing) system according to an embodiment of the present invention.

  This SBC system includes a server device 10 and a plurality of client devices (A) 20a, (B) connected to a network N composed of a wired or wireless LAN (Local Area Network) or WAN (Wide Area Network). ) 20b,.

  The client devices (A) 20a, (B) 20b,... May be different types of terminal devices such as a desktop PC type, a notebook PC type, a portable terminal (PDA) type, a mobile phone type, or the like. But you can.

  The server device 10 includes a plurality of application programs such as a text creation processing program, a Web browser program, a spreadsheet processing program, and a mail processing program, and client devices (A) 20a and (B) connected to the server device 10 20b,... Is started and executed in response to an operation input (input event) signal from 20b,.

  In the server device 10, the application program is generated on the client frame buffer RAM 14a (see FIG. 3) in accordance with the execution of the application program in accordance with the operation input signal from the client device (A) 20a, (B) 20b,. The screen data G for display output is transferred to the client device (A) 20a, (B) 20b,.

  In the client devices (A) 20a, (B) 20b,..., The screen data G transferred from the server device 10 is expanded in the frame buffer RAM 25 (see FIG. 4) and displayed on the display screen of the display device 26. The

  In other words, each client device (A) 20a, (B) 20b,... In this SBC system has an input function corresponding to a user operation such as a keyboard and a mouse, and an output to an LCD display unit and a printer. It has functions as main functions and does not have at least various application functions and data file management functions that the server device 10 has.

  The data files generated by various processes activated and executed in the server device 10 in response to operation input (input event) signals from the client devices (A) 20a, (B) 20b,. Are stored and stored for each user account or as a shared file in the server device 10 or in a storage device such as a magnetic disk managed and managed by the server device 10.

  The client devices (A) 20a, (B) 20b,... Of this SBC system are connected to the first communication means (communication I / F (1) 29a: FIG. 4) for communicating with the server device 10 via the network N. ) As well as second communication means (communication I / F (2) 29b: see FIG. 4) for communicating with each other between the client devices (A) 20a, (B) 20b,.

  The SBC system is configured such that when a client device (A) 20a connected to the server device 10 is connected to another client device (B) 20b by the same user, the connected client device (A) ) A function that can be easily switched without performing a log-off operation in 20a and a logon operation in the switching destination client device (B) 20b.

  The switching process from the client device (A) 20a being connected to the client device (B) 20b to be switched is the terminal information (display) from the client device (B) 20b being the switch destination to the client device (A) 20a being connected. This is started based on a switching notification signal including a screen size. At this time, the screen data first displayed on the switching destination client device (B) 20b is the screen data last displayed on the switching source client device (A) 20a, and the terminal information (display screen size). Resized based on the given.

  FIG. 2 is a diagram showing a state of a display screen associated with connection switching between the client devices (A) 20a, (B) 20b,... With respect to the server device 10 of the SBC system.

  As described above, the screen data G last displayed on the switching source client device (A) [for example, portable terminal type] 20a is the terminal information of the switching destination client device (B) [for example, desktop type PC] 20b. The image is resized based on (display screen size), transferred to the switching destination client device (B) 20b, and displayed. At this time, as indicated by arrows x in FIGS. 2A and 2B, for example, the screen data G of the switching source is sequentially resized for each screen data of a certain width from the upper part to the lower part and transferred to the switching destination. The switching source screen data G is displayed as the switching destination screen data G ′ while being sequentially deleted.

  As a result, the switching destination client device (B) 20b can quickly and naturally display the initial screen (G ′) without waiting for the completion of connection with the server device 10. Further, in the switching source client device (A) 20a, the screen data G is completely erased as the connection is switched, so that the security as the SBC system can be reliably maintained.

  FIG. 3 is a block diagram showing a circuit configuration of the server device 10 in the SBC system.

  The server device 10 includes a CPU 11 as a computer, and a ROM 13, a RAM 14, a frame buffer RAM 15, and a display device 16 are connected to the CPU 11 via a bus 12.

  Further, the CPU 11 is connected to an input device 17 such as a keyboard and a mouse, an external storage device 18, and a communication I / F (interface) 19 with the client devices (A) 20a, (B) 20b,. Is done.

  The CPU 11 controls the operation of each part of the circuit by using the RAM 14 as a working memory according to a system program stored in the program memory 13a in the ROM 13 and various application programs. The various programs are activated and executed in response to a processing command (input event) signal corresponding to a user operation from the client devices 20a, 20b,.

  In this server device 10, various data generated in accordance with an application program activated / executed in response to an input event signal from the client devices 20a, 20b,... Is associated with the user ID, for example, the external storage device 18. Is remembered. Further, the client display screen data G is generated by using the client frame buffer RAM 14a in the RAM 14, and after being compressed, is transferred from the communication I / F 19 to the client devices 20a, 20b,. Is output.

  In the RAM 14, an application operation state memory 14b is further secured. The application operation state memory 14b stores and manages an operation state of an application that is being executed in response to an input event of the client device 20a when the connected client device 20a is disconnected due to logoff or the like. The operation state of the application stored in the application operation state memory 14b is restored and executed when the client device 20a (20b) of the same user is next logged on and connected.

  Note that screen data to be displayed on the display device 16 of the server device 10 itself is generated on the frame buffer RAM 15.

  This server device 10 receives a switching notification signal including terminal information (display screen size, etc.) from another client device (switching destination) 20b transferred by the connected client device (switching source) 20a. The operation state of the application executed in response to the input event of the connected client device 20a is stored and saved in the application operation state memory 14b in the RAM 14, and then the connected client device 20a is stored. It has a function of disconnecting (logging off) and transmitting a connection notification signal to another client device 20b.

  Then, after transmitting a connection notification signal to the other client device (switch destination) 20b, the server device 20 receives authentication data including the terminal information (display screen size, etc.) from the other client device 20b. In this case, a normal login authentication process is executed, and the operation state of the application stored in the application operation state memory 14b in the RAM 14 is restored based on the switching destination terminal information.

  FIG. 4 is a block diagram showing a circuit configuration of the client device 20a (20b) in the SBC system.

  The client device 20 a includes a CPU 21 as a computer, and a ROM 23, a RAM 24, and a frame buffer RAM 25 are connected to the CPU 21 via a bus 22. The screen data G written in the frame buffer RAM 25 is output to the display device 26 and displayed.

  The CPU 21 is connected to an input device 27 such as a keyboard, a mouse, a microphone, and an optical sensor, and an external storage device 28 via the bus 22 and further communicates with the server device 10 via the network N. An I / F (interface) (1) 29a and a communication I / F (2) 29b for communicating with another client device 20b are connected.

  The communication I / F (2) 29b for communicating with the other client device 20b is configured using a USB cable, a cradle, a short-range wireless device, or the like.

  The CPU 21 controls the operation of each part of the circuit by using the RAM 24 as a working memory in accordance with a system program stored in the program memory 23a in the ROM 23 in advance. The CPU 21 controls the operation of each part of the circuit. Application response signal from server device 10 received via F (A) 29a, transfer screen data G, switching notification signal from other client device 20b received via communication I / F (B) 29b, etc. In response to this, the system program is started and executed.

  In the client device 20a, various data generated by executing the application program in the server device 10 is appropriately read and stored in the external storage device 28. The display screen data G generated and transferred is The compressed data is decompressed, written in the frame buffer RAM 25, and displayed on the display device 26.

  When the client device 20a (20b) switches the connection from another client device 20b (20a) connected to the server device 10, the client device 20a (20b) responds to a user operation or via the communication I / F (B) 29b. When a connection with another client device 20b (20a) is established, a switching notification signal including its own terminal information (display screen size, etc.) is automatically transmitted to the other client device 20b (20a). It has a function.

  The client device 20a (20b) transmits a switch notification signal to the other client device 20b (20a) connected to the server device 10 and then is directly transferred from the other client device 20b (20a). The display device 26 has a function of displaying the incoming resized screen data G ′ (see FIG. 2).

  When the client device 20a (20b) receives the connection notification signal from the server device 10 after displaying the screen data G ′ directly transferred from the other client device 20b (20a), The apparatus 10 has a function of transmitting authentication data including its own terminal information (display screen size and the like) to establish a connection.

  Further, the client device 20a (20b) has received a switching notification signal including its terminal information (display screen size, etc.) from the other client device 20b (20a) via the communication I / F (B) 29b. In this case, it has a function of transferring a switching notification signal from the other client device 20b (20a) to the server device 10.

  Further, when the switch notification signal is received from the other client device 20b (20a), the client device 20a (20b) stores the screen data stored in the frame buffer RAM 25 and displayed on the display device 26 at that time. G is resized based on terminal information (display screen size or the like) included in the switching notification signal, and transferred to the other client device 20b (20a) for display.

  Next, the operation of the SBC system configured as described above will be described.

  FIG. 5 is a diagram showing an overall operation sequence of the SBC system.

  In this embodiment, for example, when a certain user returns from the outside to the office, the desktop in the office from the mobile terminal type client device (A: switching source) 20a used by connecting to the server apparatus 10 at the outside is used. A case where the connection to the server device 10 is switched to the type client device (B: switching destination) 20b and the operation is continued will be mainly described.

  FIG. 6 is a flowchart showing server processing by the server device 10 of the SBC system.

  FIG. 7 is a flowchart showing client switching processing accompanying server processing of the server device 10.

  FIG. 8 is a flowchart showing client processing by the client device (A: switching source) 20a of the SBC system.

  FIG. 9 is a flowchart showing a screen resize process accompanying the client process of the client device (A: switching source) 20a.

  FIG. 10 is a flowchart showing client processing by the client device (B: switching destination) 20b of the SBC system.

  When the user performs a login operation on the client device (A) 20a used outside, authentication data including terminal information such as the user ID of the client device (A) 20a, the performance of the CPU 21, and the display screen size is sent to the server device 10. It is transmitted (step A1 (Yes) → A2).

  When the server device 10 receives the authentication data transmitted from the client device (A) 20a (step S1 (Yes) → S2), a login authentication process is executed to establish a connection (step S3). The terminal information of the connected client device (A) 20a is set in the RAM 14 (step S4).

  The operation of the application program at the end of the previous connection (logoff) stored in the application operation state memory 14b in the RAM 14 in association with the terminal information of the client device (A) 20a set in the RAM 14 The state is restored (step S5).

  Here, when an input operation by the user is performed in the client device (A) 20a (step A3 (Yes)), the input operation data (input event signal) is transmitted to the server device 10 (step A4). .

  When the server apparatus 10 receives the input operation data (input event signal) transmitted from the client apparatus (A) 20a (step S6), an application program corresponding to the input operation (input event) is executed ( In step S7), client display screen data G matching the terminal information (display screen size, etc.) set in the RAM 14 is generated and rendered in the client frame buffer RAM 14a. It is transmitted to the input source client device (A) 20a (step S8).

  When the event input source client device (A) 20a receives the screen data G generated and transmitted by the server device 10 (step A5), the screen data G is drawn and displayed in the frame buffer RAM 25. It is displayed on the device 26 (step A6).

  Thereby, in the client device (A) 20a, the screen data G generated according to the application program executed in the server device 10 is received and displayed on the display device 26 according to the input operation of the user (step A3). -A6 (S6-S8)).

  In this way, the user connects the mobile terminal type client device (A) 20a to the server device 10 at a place where he / she is away and returns to the office while performing a desired work, and the desktop type client device (B: switching destination) ) In 20b, the user performs an operation for instructing connection / switching, or the mobile terminal type client device is connected to the cradle connected to the communication I / F 29b of the desktop type client device (B: switching destination) 20b. (A: connected) 20a is attached, or connection between the portable terminal type client device (A: connected) 20a and the desktop type client device (B: switching destination) 20b is established by short-range wireless communication Then, from the desktop type client device (B: switching destination) 20b, the user ID, the performance of the CPU 21, the display screen Switching notification signal including the terminal information of the size or the like, the mobile terminal type client device: sent to (A connecting) 20a (step B1 (Yes) → B2).

  When the connected client device (A) 20a receives the switching notification signal transmitted from the switching destination client device (B) 20b (step A7 (Yes)), the process proceeds to the screen resizing process in FIG. (Step AR).

  In this screen resizing process, when a switching notification signal including the terminal information of the switching destination client device (B) 20b is received (step R1), the received switching notification signal (including the client device (B) 20b) is included. The terminal information is transferred to the server device 10 (step R2).

  Then, the switching destination client device (B) 20b that has received the screen data G stored in the frame buffer RAM 25 of the switching source client device (A) 20a and currently displayed on the display device 26 together with the switching notification signal. Are resized (enlarged / reduced) in accordance with the terminal information (display screen size) (step R3). Then, the resized screen data G ′ is transmitted to the switching destination client device (B) 20b (step R4).

  When the switching destination client device (B) 20b receives the screen data G 'resized and transmitted from the switching source client device (A) 20a (step B3), the received screen data G' Are drawn and stored in the frame buffer RAM 25 and displayed on the display device 26 (step B4).

  In this case, as indicated by the arrow x in FIGS. 2A and 2B, for example, screen data having a certain width from the upper part to the lower part of the screen data G displayed on the switching source client apparatus (A) 20a. Are sequentially resized and transferred to the switching destination client device (B) 20b, and each time the switching source screen data G is sequentially deleted, the switching destination screen data G 'is displayed.

  For this reason, in the switching destination client device (B) 20b, the initial screen (G ′) can be displayed in a quick and natural switching image without waiting for the completion of connection with the server device 10. Further, in the switching source client device (A) 20a, the screen data G is completely erased as the connection is switched, so that the security as the SBC system can be reliably maintained.

  The resize processing of the screen data G of the switching source and the transmission processing of the resized screen data G ′ to the switching destination are performed for each screen data of a certain width from the top to the bottom of the screen data G as described above. The screen data G may be resized and transmitted sequentially, or the screen data G that is the switching source may be resized and transmitted collectively, and the screen data G may be erased collectively.

  On the other hand, when the server apparatus 10 receives the switching notification signal (including terminal information) from the client apparatus (B: switching destination) 20b transferred by the currently connected client apparatus (A: switching source) 20a (steps) S9 (Yes)), the process proceeds to the client switching process in FIG. 7 (step SC).

  In this client switching process, the operating state of the application program being executed in response to an input operation (input event) from the currently connected client device (A: switching source) 20 a is stored in the application operating state memory 14 b in the RAM 14. Stored and saved (step C1).

  Then, the connection with the connected client device (A: switching source) 20a is disconnected (logged off) (step C2), and is received at step S9 via the client device (A: switching source) 20a. Based on the terminal information included in the switching notification signal from the client device (B: switching destination) 20b, the connection notification signal is transmitted to the client device (B: switching destination) 20b (step C3).

  When the switching destination client device (B) 20b receives the connection notification signal transmitted from the server device 10 (step B5 (Yes)), the user ID of the client device (B) 20b, the performance of the CPU 21 Then, authentication data including terminal information such as a display screen size is transmitted to the server device 10 (step B6).

  When the server device 10 receives the authentication data transmitted from the switching destination client device (B) 20b, the login authentication processing is similar to the initial login authentication processing for the switching source client device (A) 20a. Is established (step S3), and the terminal information of the connected client device (B) 20b is set in the RAM 14 (step S4).

  Then, the operation state of the application program at the time when the connection with the switching source client device (A) 20a stored in the application operation state memory 14b in the RAM 14 is completed (logoff) is restored (step S5).

  Here, when an input operation is performed by the user (step B7 (Yes)) in the switching destination client device (B) 20b, the input operation data (input event signal) is transmitted to the server device 10 (step S7). B8).

  When the server apparatus 10 receives the input operation data (input event signal) transmitted from the client apparatus (B) 20b (step S6), an application program corresponding to the input operation (input event) is executed ( In step S7), client display screen data G matching the terminal information (display screen size, etc.) set in the RAM 14 is generated and rendered in the client frame buffer RAM 14a. It is transmitted to the switching destination client device (B) 20b that is the input source (step S8).

  When the screen data G generated and transmitted by the server device 10 is received in the switching destination client device (B) 20b (step B9), the screen data G is drawn in the frame buffer RAM 25 and displayed on the display device. 26 (step B10).

  As a result, the in-house client device (B) 20b switched from the switching source client device (A) 20a follows the application program continuously executed by the server device 10 in response to an input operation by the same user. The generated screen data G is received and displayed on the display device 26 (steps B7 to B10 (S6 to S8)).

  Therefore, according to the SBC system having the above-described configuration, for example, a client device (A: switching source) 20a that has been used by connecting to the server device 10 when going out is used as an in-house client device (B: switching destination) 20b. When it is desired to continuously use the connection by switching the connection, the communication means (29b) between the client apparatuses directly responds to the switching source client apparatus (A) 20a from the switching destination client apparatus (B) 20b according to a user operation or the like. Switch notification signal (including terminal information) is transmitted. Then, the switching notification signal is transferred by the switching source client device (A) 20 a and transmitted to the server device 10. At this time, the switching source client device (A) 20a resizes the screen data G currently being displayed according to the terminal information of the switching destination client device (B) 20b, and the switching destination client device (B) ) Send to 20b and display. On the other hand, in the server device 10, when the switching notification signal from the switching destination client device (B) 20b transferred by the switching source client device (A) 20a is received, the operation state of the application at that time is changed. After being saved, the connection is switched from the switching source client device (A) 20a to the switching destination client device (B) 20b. Then, the operation state of the application saved before the switching of the switching source client device (A) 20a is restored, and the switching destination client device (B) 20b can continuously execute the work from before the switching. .

  For this reason, when the same user switches the client device (A) 20a connected to the server device 20 to another client device (B) 20b and uses it, the user performs a switching operation by a logoff operation and a logon operation each time. There is no need to do so, and the connection can be switched very easily and the work from before the switching can be continuously executed.

  In the embodiment, the screen data G displayed on the switching source client device (A) 20a is resized according to the terminal information (display screen size etc.) of the switching destination client device (B) 20b. The enlargement / reduction processing is executed in the switching source client device (A) 20a.

  In contrast, when a switching notification signal including the terminal information is received from the switching destination client device (B) 20b by the switching source client device (A) 20a, the switching source client device (A) 20a. The CPU performance of the switching destination client device (B) 20b is compared. If the switching source client device (A) 20a has higher performance, the screen data G ′ resized in the switching source client device (A) 20a is transferred to the switching destination client device (B) 20b. Send to and display. On the contrary, when the switching destination client device (A) 20a has higher performance, the screen data G displayed on the switching source client device (A) 20a is converted to the switching destination client device (B). After transmission to 20b, the screen data G ′ that has been resized in the switching destination client device (B) 20b may be displayed.

  Further, the resizing process of the screen data G in the above embodiment is configured to be executed by software processing, but may be configured to be executed at high speed by hardware.

  Note that each processing method by the SBC system described in the embodiment, that is, server processing by the server device 10 shown in the flowchart of FIG. 6, client switching processing accompanying the server processing shown in the flowchart of FIG. 7, flowchart of FIG. Client processing by the connected client device 20a (20b) shown in FIG. 9, screen resizing processing accompanying the client processing during connection shown in the flowchart of FIG. 9, and client by the switching destination client device 20b (20a) shown in the flowchart of FIG. Each method such as processing is a program that can be executed by a computer, such as a memory card (ROM card, RAM card, etc.), a magnetic disk (floppy disk, hard disk, etc.), an optical disk (CD-ROM, DVD, etc.). ), Can be distributed and stored in the medium of the external storage device 18, 28 such as a semiconductor memory. The computers (CPUs 11 and 21) of the server device 10 and the client devices 20a, 20b,... Store the programs stored in the media of the external storage devices 18 and 28 in the storage devices (flash ROMs 13 and 23 and RAMs 14 and 24). The operation is controlled by the read program, and the connection switching function with the server device 10 between the client devices 20a, 20b,... Described in the above embodiment is realized, and the same method as described above is used. Processing can be executed.

  Further, program data for realizing each of the above methods can be transmitted on the communication network (N) in the form of a program code, and from a computer device (program server) connected to the communication network (N). The program data is taken in and stored in a storage device (flash ROM 13, 23 or RAM 14, 24), and the above-described connection switching function with the server device 10 between the client devices 20a, 20b,. .

  Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the column of the problem to be solved by the invention If the effects described in the column “Effects of the Invention” can be obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

DESCRIPTION OF SYMBOLS 10 ... Server apparatus 20a, 20b ... Client apparatus 11, 21 ... CPU
12, 22 ... Bus 13, 23 ... ROM
13a, 23a ... Program memory 14, 24 ... RAM
14a: Client frame buffer RAM
14b ... Application operation state memory 15, 25 ... Frame buffer RAM
16, 26 ... Display device 17, 27 ... Input device 18, 28 ... External storage device 19, 29a ... Communication I / F (for network communication)
29b ... Communication I / F (for communication between clients)
N ... Communication network G ... Display screen data G '... Display screen data (after resizing)

Claims (9)

A terminal device that receives and outputs information from an information management device,
Instruction acquisition means for acquiring a switching instruction to switch the information transmission destination from the information management device to the second terminal device in a state in which information is received and output from the information management device;
When the switching instruction is acquired by the instruction acquisition means, information conversion means for converting the information to be output by the second terminal device, which has been output by the terminal device;
When the switching instruction is acquired by the instruction acquisition means, the information is sent to the second terminal device so that the information is output by the second terminal device until the information switching from the information management device is completed. A transmission means for transmitting
A terminal device comprising: The terminal device is a receiving terminal device that is receiving information from the information management device, and is a switching source terminal device when switching the reception destination of the information to the second terminal device,
The information conversion means converts the information displayed and output on the terminal device into the size of information displayed and output on the second terminal device.
The terminal device according to claim 1 . The instruction acquisition means acquires the switching instruction from the second terminal device, and instructs the information management device to switch the information transmission destination to the second terminal device.
Terminal device according to claim 1 or 2, characterized in that. A terminal device that receives and outputs information from an information management device,
Obtaining an instruction to obtain a switching instruction for switching the information transmission destination from the information management apparatus from the second terminal apparatus to the terminal apparatus in a state where the second terminal apparatus receives and outputs information from the information management apparatus Means,
When the switching instruction is acquired by the instruction acquiring means, the information at that time that has been output by the second terminal device is output by the terminal device until the information switching from the information management device is completed. Therefore, information receiving means for receiving the information at that time from the second terminal device,
Output means for outputting the information received by the information receiving means, and then receiving and outputting new information from the information management apparatus after switching of the information transmission destination in the information management apparatus is completed; ,
A terminal device comprising: The terminal device is a terminal device that is a switching destination when switching the reception destination of the information from the second terminal device receiving information from the information management device to the terminal device,
The information receiving means receives, from the second terminal device, information obtained by converting the information received by the second terminal device so that the information can be output by the terminal device.
The terminal device according to claim 4 . The terminal device displays and outputs information received from the information management device or information received from the second terminal device,
The information receiving means receives information converted to a size displayed and output by the terminal device.
The terminal device according to claim 4 or 5 , wherein The instruction acquisition means acquires the switching instruction from a user based on a switching operation, and performs the switching instruction via the second terminal device connected to the information management device.
The terminal device according to any one of claims 4 to 6 . A program for controlling a computer of a terminal device that receives and outputs information from an information management device,
The computer,
Instruction acquisition means for acquiring a switching instruction to switch the information transmission destination from the information management device to the second terminal device in a state in which information is received and output from the information management device;
When the switching instruction is acquired by the instruction acquisition means, information conversion means for converting the information to be output by the second terminal apparatus to the information output from the terminal apparatus;
When the switching instruction is acquired by the instruction acquisition means, the information is sent to the second terminal device so that the information is output by the second terminal device until the information switching from the information management device is completed. Transmitting means for transmitting
A computer-readable program designed to function as a computer. A program for controlling a computer of a terminal device that receives and outputs information from an information management device,
The computer,
Obtaining an instruction to obtain a switching instruction for switching the information transmission destination from the information management apparatus from the second terminal apparatus to the terminal apparatus in a state where the second terminal apparatus receives and outputs information from the information management apparatus means,
When the switching instruction is acquired by the instruction acquiring means, the information at that time that has been output by the second terminal device is output by the terminal device until the information switching from the information management device is completed. Therefore, information receiving means for receiving the information at that time from the second terminal device,
An output means for outputting the information received by the information receiving means, and then receiving and outputting new information from the information management apparatus after switching of the information transmission destination in the information management apparatus is completed;
A computer-readable program designed to function as a computer.

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