JP2010199946A - Information processing apparatus, control method of the same, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing apparatus capable of reducing the number of times of operations by a user, when selecting a terminal device via a network to establish a connection. <P>SOLUTION: The information processing apparatus (computer 1) includes a connection history storage section 11b for storing the history of the establishment of a connection with terminal devices as connection history information; a terminal search section (CPU 10, network interface section 16) for searching for terminal devices connected to a network 200; a terminal selection section (CPU 10) for selecting one or more terminal devices as connection terminals, based on the connection history information stored in the connection history storage section 11b, from among the terminal devices for which the terminal search section has searched; and a connection section (CPU 10, network interface section 16) for establishing a connection to the terminal devices for which the terminal selection section selects as the connection terminals. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, a control method for the information processing apparatus, a program, and a recording medium.

  Conventionally, there has been an information processing apparatus such as a personal computer that searches for a terminal device such as a projector connected to a network and generates a list of searched terminal devices. In such an information processing device, the user selects a desired terminal device from the searched list of terminal devices, and further establishes a connection with the terminal device, and image information, etc. is transmitted to the terminal device. The predetermined information was sent and received. Patent Document 1 discloses a search system for a wireless LAN terminal device that searches a terminal device by gradually increasing the transmission output of wireless communication of a wireless LAN (Local Area Network) to create a search list. According to such a search system, the nearest terminal device can be efficiently searched from a plurality of terminal devices.

JP 2006-196946 A

  However, a series of operations of searching for and selecting a terminal device from the list of searched terminal devices and establishing a connection has a problem that the number of operations is high and the convenience is low for the user. In addition, there are many cases in which a user normally uses a terminal device, and it is troublesome to select a similar terminal device each time to establish a connection. Further, in the search system of Patent Literature 1, it is possible to search for the nearest terminal device, but there is a problem that the nearest terminal device is not necessarily the terminal device that the user wants to use.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 An information processing apparatus according to this application example is an information processing apparatus that can be connected to a terminal device via a network, and stores a history of establishing a connection with the terminal device as connection history information. The connection history information stored in the connection history storage unit among the storage unit, the terminal search unit that searches for the terminal device connected to the network, and the terminal device searched by the terminal search unit A terminal selection unit that selects one or more of the terminal devices as connection terminals, and a connection unit that establishes a connection with the terminal device selected as the connection terminal by the terminal selection unit. And

  According to such an information processing apparatus, the connection history storage unit stores connection history information that has established a connection with the terminal device. The terminal search unit searches for a terminal device connected to the network. A terminal selection part selects one or more terminal devices as a connection terminal based on connection history information among the searched terminal devices. Then, the connection unit establishes a connection with the terminal device selected as the connection terminal. Thereby, even if a user does not perform operation for selecting a terminal device and establishing a connection, the information processing device can select a terminal device based on the connection history information and establish a connection. Therefore, the number of user operations can be reduced, and convenience is improved.

  Application Example 2 In the information processing apparatus according to the application example, the connection history information stored in the connection history storage unit includes connection frequency information, and the terminal selection unit is configured to connect the connection history information. Based on the frequency information, the terminal device having the highest connection frequency is selected as the connection terminal.

  According to such an information processing apparatus, the connection history information includes connection frequency information. The terminal selection unit selects the terminal device with the highest connection frequency as the connection terminal based on the connection frequency information. Then, the connection unit establishes a connection with the selected terminal device. As a result, even if the user does not perform an operation for selecting a terminal device and establishing a connection, the information processing apparatus can select a terminal device with the highest connection frequency and establish a connection. Therefore, a suitable terminal device corresponding to the user's usage record is selected. In addition, it is beneficial for a user whose terminal device to be used is determined because the troublesomeness of selecting the same terminal device each time to establish a connection is reduced.

  Application Example 3 In the information processing apparatus according to the application example described above, when there is one terminal device searched by the terminal search unit, the terminal selection unit selects the terminal device as the connection terminal. It is characterized by doing.

  According to such an information processing apparatus, when there is one terminal device searched by the terminal search unit, the terminal selection unit selects the terminal device as a connection terminal. And a connection part establishes a connection with the said terminal device. Thus, even if the user does not perform an operation for selecting a terminal device and establishing a connection, the information processing device can select the terminal device and establish a connection. Therefore, the number of user operations can be reduced, and convenience is improved.

  Application Example 4 In the information processing apparatus according to the application example described above, the terminal device is an image display device that displays an image based on image information, further includes an image transmission unit that transmits the image information, and the image transmission The unit transmits the image information to the image display device after connection is established by the connection unit.

  According to such an information processing apparatus, the image transmission unit can transmit image information. Here, the terminal device is an image display device that displays an image based on image information. Then, the image transmission unit transmits the image information after the connection with the image display device is established. Thus, even if the user does not perform an instruction operation, the information processing apparatus can select a terminal device to establish a connection and start transmitting image information. The image display device can display an image based on the image information. Therefore, the number of user operations can be reduced, and an image can be quickly displayed on the image display device.

  Application Example 5 An information processing apparatus control method according to this application example includes a connection history storage unit that is connectable to a terminal device via a network and stores a history of establishing a connection with the terminal device as connection history information. A method for controlling an information processing apparatus, comprising: a terminal search step for searching for the terminal device connected to the network; and the terminal device searched by the terminal search step, stored in the connection history storage unit A terminal selection step of selecting one or more of the terminal devices as connection terminals based on the connection history information, and a connection for establishing a connection with the terminal device selected as the connection terminal by the terminal selection step And a step.

  According to such a control method for an information processing device, the information processing device selects and connects the terminal device based on the connection history information without the user performing an operation for selecting the terminal device and establishing the connection. Can be established. Therefore, the number of user operations can be reduced, and convenience is improved.

  Application Example 6 A program according to this application example is executed by a computer including a connection history storage unit that enables connection to a terminal device via a network and stores a history of connection with the terminal device as connection history information. A terminal search step for searching for the terminal device connected to the network, and among the terminal devices searched by the terminal search step, stored in the connection history storage unit A terminal selection step of selecting one or more of the terminal devices as connection terminals based on connection history information; and a connection step of establishing a connection with the terminal device selected as the connection terminal by the terminal selection step. It is characterized by providing.

  By causing the computer to execute such a program, the computer selects the terminal device based on the connection history information and establishes the connection without the user performing an operation for selecting the terminal device and establishing the connection. be able to. Therefore, the number of user operations can be reduced, and convenience is improved.

  Application Example 7 A computer-readable recording medium on which a program according to the application example is recorded.

  By operating the program recorded in such a recording medium on a computer, the computer selects the terminal device based on the connection history information without performing an operation for the user to select the terminal device and establish a connection. To establish a connection. Therefore, the number of user operations can be reduced, and convenience is improved. Examples of such a recording medium include a flexible disk, a CD-ROM, a magneto-optical disk, an IC card, a ROM cartridge, a punch card, a printed matter on which a code such as a bar code is printed, an internal storage device of a computer (such as a RAM or a ROM). Various media that can be read by the computer, such as a memory) and an external storage device, can be used.

Explanatory drawing which shows the state in which the computer and projector which concern on this embodiment are connected to the network. The block diagram which shows schematic structure of the computer which concerns on this embodiment. Explanatory drawing of a connection history memory | storage part. The state transition diagram of the computer accompanying operation | movement of a projector connection application. Explanatory drawing of a search projector list window. Explanatory drawing of a projector connection toolbar. The flowchart of the process performed when a computer accepts starting of a projector connection application in a standby state. The flowchart of the process in the candidate display state of a computer. The flowchart of the process in the image output state of a computer.

  Hereinafter, embodiments will be described.

(Embodiment)
In the present embodiment, a personal computer (hereinafter simply referred to as “computer”) will be described as an embodiment of the information processing apparatus. In the present embodiment, the image display device as the terminal device is described as a projector that projects an image based on image information and displays the image on an external screen or the like.
FIG. 1 is an explanatory diagram illustrating a state in which a computer and a projector according to the present embodiment are connected to a network.

  As shown in FIG. 1, the computer 1 is connected to a network 200 such as a LAN. Furthermore, projectors 110, 120, 130, and 140 are connected to the network 200. Projectors 110, 120, 130, and 140 are assigned projector names as network identifiers. The projector name is stored in each projector as network information. In this embodiment, the projectors 110, 120, 130, and 140 are assigned projector names Projector1, Projector2, Projector3, and Projector4, respectively. The projectors 110, 120, 130, and 140 are collectively referred to as the projector 100.

Next, the internal configuration of the computer 1 will be described.
FIG. 2 is a block diagram illustrating a schematic configuration of the computer 1 according to the present embodiment.

  The computer 1 has inputs such as a CPU (Central Processing Unit) 10, an external storage device 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a display unit 14, a mouse MS, a keyboard KB, and the like. Part 15. The computer 1 also includes a network interface unit 16 for connecting to the network 200.

  The external storage device 11 stores an installed OS (Operating System), application programs, various data, and the like. In the present embodiment, the external storage device 11 is a hard disk drive.

  In the external storage device 11, a projector connection application 11a is stored as an application program. The projector connection application 11a is an application program that establishes a connection with the projector 100 connected to the network 200 and transmits image information.

  Further, the external storage device 11 includes a connection history storage unit 11b as one of various data. The connection history storage unit 11b stores, as connection history information, a table of projector names and connection frequencies (that is, connection establishment times) that the computer 1 has established through the network 200 in the past.

Here, the connection history storage unit 11b will be described. FIG. 3 is an explanatory diagram of the connection history storage unit 11b.
As illustrated in FIG. 3, the connection history storage unit 11 b stores a “projector name” that establishes a connection and each “connection establishment count”. In the present embodiment, Projector 1 has a connection establishment number of times, Projector 2 has 18 connection times, Projector 3 has 3 connection times, and Projector 4 has 2 connection establishment times.

  When the connection history storage unit 11 b is connected to the projector 100 via the network 200, writing is performed by the external storage device 11 based on an instruction from the CPU 10. Further, when the CPU 10 selects the projector 100 that establishes a connection, reading is performed by the external storage device 11.

  Returning to FIG. 2, the network interface unit 16 is a communication means using IP (Internet Protocol) network communication, and is connected to the external network 200 via a network cable. Here, it is assumed that the network interface unit 16 performs communication by connecting to the network 200 using a protocol such as TCP / IP (Transmission Control Protocol / Internet Protocol). The network interface unit 16 communicates with the network 200 based on instructions from the CPU 10. The network interface unit 16 establishes a connection with the projector 100 connected to the network 200 and transmits image information to the projector 100.

  With the configuration described above, the computer 1 performs an operation process according to the OS stored in the external storage device 11. Furthermore, when an application program stored in the external storage device 11 is activated, the computer 1 performs an operation process according to the application program. Hereinafter, operation processing of the projector connection application 11a will be described.

  First, the state transition of the computer 1 accompanying the operation of the projector connection application 11a will be described. FIG. 4 is a state transition diagram of the computer 1 accompanying the operation of the projector connection application 11a.

  As shown in FIG. 4, the computer 1 can transition to a standby state ST10, a candidate display state ST11, and an image output state ST12. The standby state ST10 indicates a state where the projector connection application 11a provided in the computer 1 is not activated. The candidate display state ST11 indicates a state in which the projector connection application 11a is activated and a search projector list window W1 (hereinafter also simply referred to as “window W1”) is displayed. The window W1 is a window display for allowing the user to select and connect the projector 100.

  FIG. 5 is an explanatory diagram of the search projector list window W1. As shown in FIG. 5, a list DL of the searched projectors 100 is displayed in the window W1. The list DL includes the status of each projector 100, the projector name, and the IP address. The list DL has a check box CB for each projector 100 searched for. The user can specify the projector 100 to establish a connection by clicking the check box CB.

  A search button B1 is provided at the lower left of the window W1. The user can search for the projector 100 connected to the network 200 by clicking the search button B1. A connection button B2 is provided at the lower right of the window W1. The user can establish a network connection with the designated projector 100 by clicking the connection button B2 after designating the projector 100 to be established. An end button B3 is provided on the upper right of the window W1. The user can end the projector connection application 11a by clicking the end button B3.

  Returning to FIG. 4, the image output state ST12 is a state in which the projector connection application 11a is activated, establishes a connection with the projector 100, and transmits image information. In the image output state ST12, the computer 1 displays a projector connection toolbar W2 (hereinafter also simply referred to as “toolbar W2”).

  FIG. 6 is an explanatory diagram of the projector connection toolbar W2. As shown in FIG. 6, the tool bar W2 includes a disconnect button B4 for disconnecting the network connection as well as various buttons for controlling the image display state of the projector 100. The user can disconnect the network connection with the projector 100 by clicking the disconnect button B4. An end button B5 is provided on the upper right of the toolbar W2. The user can end the projector connection application 11a by clicking the end button B5.

Returning to FIG. 4, the computer 1 transitions between the standby state ST10, the candidate display state ST11, and the image output state ST12 in accordance with the operation of the projector connection application 11a. When the projector connection application 11a is activated in the standby state ST10, the computer 1 transitions to either the image output state ST12 or the candidate display state ST11. Which state to transition to is determined by whether or not a predetermined condition is satisfied.
In the following, including the description of the predetermined condition, processing executed when an operation is accepted and state transition in each state will be described.

  FIG. 7 is a flowchart of processing executed when the computer 1 receives activation of the projector connection application 11a in the standby state ST10.

  When the projector connection application 11a is started in the standby state ST10, the CPU 10 instructs the network interface unit 16 to search for the projector 100 connected to the network 200 (step S101). As a search method, for example, the projector 100 can be searched by broadcasting to the network 200. Note that the CPU 10 and the network interface unit 16 at this time correspond to a terminal search unit.

  Next, the CPU 10 determines whether the projector 100 exists from the search result (step S102). If the projector 100 exists (step S102: YES), the CPU 10 determines whether or not there is one projector 100 (step S103).

  If the number of projectors 100 is not one (that is, if there are a plurality of projectors) (step S103: NO), the CPU 10 refers to the connection history storage unit 11b and the number of connection establishments is one in the searched projectors 100. It is determined whether or not the above projector 100 exists (step S104).

  If there is a projector 100 having a connection establishment count of 1 or more (step S104: YES), the CPU 10 selects the projector 100 having the largest connection establishment count (step S105). For example, according to the connection history storage unit 11b of FIG. 3 of the present embodiment, Projector2 (projector 120) is selected. Note that the CPU 10 at this time corresponds to a terminal selection unit.

  Then, the CPU 10 instructs the network interface unit 16 to establish a connection with the selected projector 100 (step S106). Specifically, the network interface unit 16 issues a connection request to the selected projector 100. In response to the connection request, the projector 100 transmits a connection response permitting the connection to the computer 1. When the network interface unit 16 receives the connection response, the network connection between the computer 1 and the projector 100 is established. The CPU 10 and the network interface unit 16 at this time correspond to a connection unit.

  Then, the CPU 10 adds +1 (adds 1) to the connection establishment number of the established projector 100 and stores it in the connection history storage unit 11b (step S107). Then, the CPU 10 starts transmitting image information to the projector 100 that has established the connection via the network interface unit 16 (step S108). Specifically, the CPU 10 sequentially captures images displayed on the display unit 14 and transmits the images as image information from the network interface unit 16 to the projector 100. At this time, the CPU 10, the display unit 14, and the network interface unit 16 correspond to an image transmission unit.

  CPU10 displays the tool bar W2 on the display part 14 (step S109). Then, the CPU 10 changes the state to the image output state ST12 (Step S110). Then, the processing to be executed when the activation of the projector connection application 11a is received is terminated.

  When the number of projectors 100 is one (step S103: YES), the process proceeds to step S106, and connection with the projector 100 is established. The processing after step S106 is the same as that described above.

  When the projector 100 does not exist (step S102: NO), the CPU 10 displays the window W1 on the display unit 14 (step S111). In this case, no candidate is displayed because the projector 100 does not exist as a search result. Then, the CPU 10 changes the state to the candidate display state ST11 (step S112). Then, the processing to be executed when the activation of the projector connection application 11a is received is terminated.

  When there is no projector 100 having the connection establishment count of 1 or more (step S104: NO), the process proceeds to step S111 to display the window W1. In this case, since the projector 100 exists, candidates are displayed. The processing after step S111 is the same as that described above.

  Here, the above-mentioned predetermined condition is either “one projector 100 (step S103: YES)” or “there is a projector 100 with one or more connection establishment times (step S104: YES)”. Indicates the condition that holds.

  As described above, if the predetermined condition, that is, the condition that “one projector 100 exists” or “there is a projector 100 with one or more connection establishments” is satisfied, the computer 1 When the projector connection application 11a is activated, the projector transitions directly from the standby state ST10 to the image output state ST12. When the predetermined condition is not satisfied, the computer 1 transits from the standby state ST10 to the candidate display state ST11.

  Next, processing executed when the computer 1 receives an operation in the candidate display state ST11 and state transition will be described. FIG. 8 is a flowchart of processing in the candidate display state ST11 of the computer 1.

  In the candidate display state ST11, the CPU 10 determines whether or not the connection button B2 has been clicked (step S201). If the connection button B2 is clicked (step S201: YES), the CPU 10 instructs the network interface unit 16 to establish a connection with the projector 100 specified in the check box CB (step S202).

  Then, the CPU 10 increments the connection establishment count of the established projector 100 by 1 (adds 1) and stores it in the connection history storage unit 11b (step S203). Then, the CPU 10 starts transmitting image information to the projector 100 that has established the connection via the network interface unit 16 (step S204).

  The CPU 10 causes the display unit 14 to delete the window W1 (step S205). Next, the CPU 10 displays the toolbar W2 on the display unit 14 (step S206). Then, the CPU 10 changes the state to the image output state ST12 (step S207). Then, the process in the candidate display state ST11 of the computer 1 is terminated.

  If the connection button B2 is not clicked (step S201: NO), the CPU 10 determines whether or not the end button B3 is clicked (step S208). If the end button B3 has been clicked (step S208: YES), the CPU 10 causes the display unit 14 to delete the window W1 (step S209). The CPU 10 ends the projector connection application 11a (step S210). Then, the CPU 10 changes the state to the standby state ST10 (step S211). Then, the process in the candidate display state ST11 of the computer 1 is terminated.

  If the end button B3 is not clicked (step S208: NO), the CPU 10 determines whether or not the search button B1 is clicked (step S212). If the search button B1 is clicked (step S212: YES), the CPU 10 instructs the network interface unit 16 to search for the projector 100 connected to the network 200 (step S213). Then, the CPU 10 redisplays the window W1 on the display unit 14 based on the search result (step S214). Then, the process proceeds to step S201.

  If the search button B1 is not clicked (step S212: NO), the CPU 10 determines whether or not the check box CB is clicked (step S215). If the check box CB is clicked (step S215: YES), the CPU 10 checks or unchecks the corresponding check box CB (step S216). Then, the process proceeds to step S201.

  If the check box CB is not clicked (step S215: NO), the process proceeds to step S201.

  As described above, the computer 1 can transition from the candidate display state ST11 to the image output state ST12 or transition to the standby state ST10. It is also possible to search again for the projector 100 connected to the network 200.

  Next, processing executed when the computer 1 receives an operation in the image output state ST12 and state transition will be described. FIG. 9 is a flowchart of processing in the image output state ST12 of the computer 1.

  In the image output state ST12, the CPU 10 determines whether or not the disconnect button B4 has been clicked (step S301). If the disconnect button B4 is clicked (step S301: YES), the CPU 10 instructs the network interface unit 16 to disconnect from the projector 100 (step S302). And CPU10 complete | finishes transmission of image information (step S303). Further, the CPU 10 causes the display unit 14 to delete the toolbar W2 (step S304).

  The CPU 10 instructs the network interface unit 16 to search for the projector 100 connected to the network 200 (step S305). CPU10 displays the window W1 on the display part 14 based on a search result (step S306). Then, the CPU 10 changes the state to the candidate display state ST11 (step S307). Then, the processing in the image output state ST12 of the computer 1 is terminated.

  If the disconnect button B4 is not clicked (step S301: NO), the CPU 10 determines whether or not the end button B5 is clicked (step S308). If the end button B5 has been clicked (step S308: YES), the CPU 10 causes the display unit 14 to delete the toolbar W2 (step S309). The CPU 10 ends the projector connection application 11a (step S310). Then, the CPU 10 changes the state to the standby state ST10 (step S311). Then, the processing in the image output state ST12 of the computer 1 is terminated.

  If the end button B5 has not been clicked (step S308: NO), the CPU 10 determines whether or not another operation has been performed (step S312). If another operation has been performed (step S312: YES), the CPU 10 performs a process corresponding to the other operation (S313). Then, the process proceeds to step S301. Here, the other operations indicate operations of various buttons provided on the toolbar W2 for controlling the image display state of the projector 100, but detailed description thereof is omitted.

  If no other operation is performed (step S312: NO), the process proceeds to step S301.

  As described above, the computer 1 can transition from the image output state ST12 to the candidate display state ST11 or transition to the standby state ST10.

According to the embodiment described above, the following effects can be obtained.
(1) When the projector connection application 11a is activated in the standby state ST10, the computer 1 searches for the projector 100 connected to the network 200. If one projector 100 is found, the computer 1 establishes a connection with the projector 100. That is, the computer 1 can establish a connection with the projector 100 without the user performing an operation for selecting the projector 100 and establishing a connection. As a result, the number of user operations for establishing a connection between the computer 1 and the projector 100 can be reduced, and convenience is improved.

  (2) When the projector connection application 11a is activated in the standby state ST10, the computer 1 searches for the projector 100 connected to the network 200. If one of the retrieved projectors 100 has a connection establishment count of 1 or more, the computer 1 selects the projector 100 with the largest connection establishment count and establishes a connection with the projector 100. That is, even if the user does not perform an operation for selecting the projector 100 and establishing a connection, the computer 1 can select the projector 100 having the largest number of connection establishments and establish a connection. As a result, the number of user operations for establishing a connection between the computer 1 and the projector 100 can be reduced, and convenience is improved. In addition, since the projector 100 is selected based on the number of connection establishment times, a suitable projector 100 is selected according to the user's usage record. In addition, it is beneficial for a user who has determined the projector 100 to be normally used because the troublesomeness of selecting the same projector 100 each time to establish a connection is reduced.

  (3) When the projector connection application 11a is activated in the standby state ST10, the computer 1 searches for the projector 100 connected to the network 200. If a predetermined condition is satisfied, one of the searched projectors 100 is selected to establish a connection. Furthermore, the computer 1 starts transmitting image information to the projector 100 that has established the connection. And it changes to image output state ST12. That is, the computer 1 can start the transmission of the image information by selecting the projector 100 and establishing the connection by simply starting the projector connection application 11a without performing an instruction operation. As a result, the number of user operations can be reduced, and the projector 100 can quickly display an image.

  In addition, it is not limited to embodiment mentioned above, It is possible to implement by adding various change, improvement, etc. A modification will be described below.

  (Modification 1) In the above-described embodiment, the number of projectors 100 that the computer 1 establishes connection with is one (single), but may be plural. In this way, it is possible to transmit and display image information to a plurality of projectors 100.

  (Modification 2) In the above embodiment, the computer 1 selects the projector 100 having the highest connection establishment number among the searched projectors 100, but there are a plurality of projectors 100 having the same connection establishment number. In this case, it is possible to select the projector 100 that is most recently (ie, most recently) connected. In this case, by making it possible to set a flag indicating the latest in the connection history storage unit 11b, it is possible to determine the projector 100 that has recently established a connection.

  (Modification 3) In the above-described embodiment, the computer 1 and the projector 100 are connected via a wired LAN, but may be connected via a wireless LAN.

  (Modification 4) In the above embodiment, the connection history storage unit 11b stores the number of connection establishments corresponding to the projector name of the projector 100. However, the connection history storage unit 11b may correspond to an IP address or may be a MAC (Media Access Control). The number of connection establishments may be stored in association with the address.

  (Modification 5) In the above embodiment, the projector connection application 11a is stored in the external storage device 11. However, the projector connection application 11a is readable by the computer 1, such as a flexible disk or a CD-ROM. You may provide with the form recorded on the recording medium. The computer 1 reads an application program from the recording medium, transfers it to the RAM 13 or the external storage device 11, and operates it. Further, an application program may be supplied to the computer 1 via the network 200.

  (Modification 6) In the above embodiment, the computer 1 is described as an example of the information processing apparatus. The computer 1 is configured to include a hardware device, an OS, and an application program. However, when the OS is not required and the hardware device is operated by the application program alone, the hardware device itself performs information processing. It corresponds to a device (computer). The hardware device includes at least a microprocessor such as a CPU and means for reading a computer program recorded on a recording medium. The computer program includes program code for causing such an information processing apparatus to realize the above-described functions. Note that some of the functions described above may be realized by the OS instead of the application program.

  (Modification 7) In the above embodiment, the projector 100 is described as an example of the image display device. However, any image display device that can be connected to a network can be applied. For example, a rear projector with an integral transmission screen, or a liquid crystal display, plasma display, SED (Surface-Conduction Electron-Emitter Display), organic EL (Electro Luminescence) display, CRT (Cathode Ray Tube) display, etc. It is also possible to apply to.

  DESCRIPTION OF SYMBOLS 1 ... Computer, 10 ... CPU, 11 ... External storage device, 11a ... Projector connection application, 11b ... Connection history storage part, 13 ... RAM, 14 ... Display part, 15 ... Input part, 16 ... Network interface part, 100, 110 120, 130, 140 ... projector, 200 ... network.

Claims (7)

An information processing apparatus that can be connected to a terminal device via a network,
A connection history storage unit for storing a history of establishing a connection with the terminal device as connection history information;
A terminal search unit for searching for the terminal device connected to the network;
Of the terminal devices searched by the terminal search unit, a terminal selection unit that selects one or more terminal devices as connection terminals based on the connection history information stored in the connection history storage unit;
A connection unit that establishes a connection with the terminal device selected by the terminal selection unit as the connection terminal;
An information processing apparatus comprising: The information processing apparatus according to claim 1,
The connection history information stored in the connection history storage unit includes connection frequency information,
The information processing device, wherein the terminal selection unit selects the terminal device having the highest connection frequency as the connection terminal based on the connection frequency information of the connection history information. The information processing apparatus according to claim 1, wherein:
When the number of the terminal devices searched by the terminal search unit is one, the terminal selection unit selects the terminal device as the connection terminal. An information processing apparatus according to any one of claims 1 to 3,
The terminal device is an image display device that displays an image based on image information,
An image transmission unit for transmitting the image information;
The information transmission device, wherein the image transmission unit transmits the image information to the image display device after connection is established by the connection unit. A method for controlling an information processing apparatus including a connection history storage unit that is connectable to a terminal device via a network and stores a history of establishing a connection with the terminal device as connection history information,
A terminal search step of searching for the terminal device connected to the network;
A terminal selection step of selecting one or more terminal devices as connection terminals based on the connection history information stored in the connection history storage unit among the terminal devices searched by the terminal search step;
A connection step for establishing a connection with the terminal device selected as the connection terminal by the terminal selection step;
An information processing apparatus control method comprising: A program for enabling a computer to be connected to a terminal device via a network and causing a computer including a connection history storage unit to store a history of establishing a connection with the terminal device as connection history information,
A terminal search step of searching for the terminal device connected to the network;
A terminal selection step of selecting one or more terminal devices as connection terminals based on the connection history information stored in the connection history storage unit among the terminal devices searched by the terminal search step;
A connection step for establishing a connection with the terminal device selected as the connection terminal by the terminal selection step;
A program comprising:   A computer-readable recording medium on which the program according to claim 6 is recorded.

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