JP2010108229A - Terminal device, projector, projection system, information storage medium, and method of setting connection - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal device or the like that can be connected to a projector in a more flexible and reliable way. <P>SOLUTION: A PC 200, which is a terminal device, includes: a terminal side storage unit 250 for storing connection setting data 252 indicating the content of at least one connection setting and the priority of the connection setting; an interface unit 210 where all or part of the connection setting data 252 is written on an information storage medium;and a terminal side communication unit 220 which sends information to the projector when all or part of the connection setting data 252 is read from the information storage medium to the projector to establish communication with the projector. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a terminal device, a projector, a projection system, an information storage medium, and a connection setting method.

As a method for performing communication settings when a terminal device is wirelessly connected to a projector, Japanese Patent Application Laid-Open No. 2005-285091 stores setting information in a projector in a USB memory and connects the USB memory to a PC (Personal Computer). A method for performing communication settings is described.
JP 2005-285091 A

  However, this method is a method of storing in the USB memory as setting information any one of an ad hoc mode that does not use an access point, an infrastructure mode that uses an access point, and a wired LAN mode. For this reason, in this method, the connection form is fixed, and it is difficult to change the connection setting flexibly according to the communication form that is actually applied.

  For example, when the projector is used in a conference room or the like, the projector and the PC may be wirelessly connected in an ad hoc mode, or the projector and a plurality of PCs may be wirelessly connected via an access point. In such a case, according to the method of the above publication, the procedure for performing connection setting is complicated, and it takes time to perform connection setting.

  An object of the present invention is to provide a terminal device, a projector, a projection system, an information storage medium, and a connection setting method that can be connected to a projector more flexibly and reliably.

  In order to solve the above-described problem, a terminal device according to the present invention includes a terminal-side storage unit that stores connection setting data indicating the content of at least one connection setting and the priority of the connection setting, and the connection setting data A writing unit that writes all or part of the information to an information storage medium, and the projector that is communicable with the projector by reading all or part of the connection setting data from the information storage medium to the projector. And a terminal-side communication unit that transmits information toward the terminal.

  According to another aspect of the invention, there is provided a projector for reading the connection setting data from an information storage medium storing connection setting data indicating at least one connection setting content and the priority of the connection setting; A communication unit; and a control unit that causes the projection-side communication unit to execute a connection process with respect to the terminal device or an access point of a network to which the terminal device belongs based on the connection setting data in an order corresponding to the priority order. It is characterized by that.

  A projection system according to the present invention includes the terminal device and the projector.

  The information storage medium according to the present invention includes a medium-side storage unit that stores connection setting data indicating the content of at least one connection setting and the priority of the connection setting, and the connection stored in a terminal device. And an interface unit for writing the setting data to the medium side storage unit and reading the connection setting data to the projector.

  The connection setting method according to the present invention is a connection setting method for a terminal device to connect to a projector, wherein the terminal device is a connection setting indicating at least one connection setting content and a priority order of the connection setting. Executing the step of writing all or part of the data in the information storage medium, wherein the projector reads all or part of the connection setting data stored in the information storage medium, and an order corresponding to the priority order. And a step of connecting to the terminal device or an access point of a network to which the terminal device belongs, and a step of transmitting notification information indicating that connection is possible to the terminal device. The step of establishing a connection with the projector is executed based on the information.

  According to the present invention, the terminal device can be connected to the projector more flexibly and surely by writing its own connection settings to the information storage medium with priority and causing the projector to read and notify.

  In addition, the terminal device may include an input unit that inputs priority information indicating the priority, and an update unit that updates the priority in the connection setting data based on the priority information.

  According to this, since the terminal device can reflect, for example, the specification of the priority order by the user in the connection setting data, it can be connected to the projector more flexibly.

  The terminal device may include a display unit that displays an image indicating a priority order for each connection setting in the connection setting data based on the connection setting data.

  According to this, the terminal device can make a user confirm the priority for every present connection setting.

  The terminal-side communication unit may establish a connection with the projector when receiving notification information indicating that connection is possible from the projector.

  According to this, when receiving the notification information indicating that connection is possible from the projector, the terminal device can establish a connection with the projector, thereby connecting with the projector more reliably.

  Further, the control unit may cause the projection side communication unit to transmit notification information indicating that connection is possible toward the terminal device.

  According to this, the projector can more reliably connect the terminal device to the projector by notifying the terminal device that connection is possible.

  Embodiments in which the present invention is applied to a projection system including a PC and a projector will be described below with reference to the drawings. In addition, the Example shown below does not limit the content of the invention described in the claim at all. In addition, all the configurations shown in the following embodiments are not necessarily essential as means for solving the invention described in the claims.

(First embodiment)
FIG. 1 is a diagram illustrating an example of a network connection state in the first embodiment. In the initial state, it is assumed that the PC 200 is connectable to the wireless LANs 310-1 to 310-3, and the projector 100 is connected to the wired LAN 300.

  The PC 200 stores connection setting data for connecting to the wireless LAN 310, and writes the connection setting data in the USB memory. The projector 100 reads the connection setting data from the USB memory and connects to the wireless LAN 310 according to the priority order. The PC 200 transmits image information to the projector 100 while the projector 100 is connected to the wireless LAN 310, and the projector 100 projects an image based on the image information. As described above, the projector 100 and the PC 200 function as a projection system.

  FIG. 2 is a functional block diagram of the projector 100 according to the first embodiment. The projector 100 functions as a projection-side storage unit 150 that stores connection setting data 152 indicating the content of at least one connection setting and the priority of the connection setting, and a reading unit that reads the connection setting data 152 from the USB memory. The connection unit 110 establishes connection to the projection side communication unit 130 in the order corresponding to the priority order based on the interface unit 110 that receives the image information from the PC and transmits the notification information, and the connection setting data 152. And a projection unit 160 that projects an image based on image information and the like.

  The connection setting includes at least one of a setting for connecting to the PC 200 and a setting for connecting to an access point of a network to which the PC 200 belongs.

  FIG. 3 is a functional block diagram of the USB memory 400 in the first embodiment. The USB memory 400, which is a kind of information storage medium, includes an interface unit 410 that inputs and outputs information with the projector 100 and the PC 200, and a medium side storage unit 450 that stores connection setting data 452.

  FIG. 4 is a functional block diagram of the PC 200 in the first embodiment. The PC 200, which is a kind of terminal device, transmits image information to the interface unit 210 that functions as a writing unit that writes connection setting data 452 to the USB memory 400, an image information generation unit 260 that generates image information, and the projector 100. In addition, the terminal-side communication unit 220 that receives the notification information, the terminal-side storage unit 250 that stores the connection setting data 252 and the image data 254, the display unit 290 that displays the image, and the user's operation information are input. And an update unit 280 for updating the connection setting data 252 and the like.

  Note that the functions of these units may be implemented in the projector 100 and the PC 200 using the following hardware, for example. For example, the interface units 110 and 210 are USB interfaces, a CPU, the input unit 270 is an operation button, a remote controller (remote controller), the projection side communication unit 130, and the terminal side communication unit 220 is a wired LAN unit, a wireless LAN unit, or the like. Unit 170, image information generation unit 260, and update unit 280 are CPUs, projection-side storage unit 150, terminal-side storage unit 250 is a non-volatile memory, projection unit 160 is an image processing circuit, lamp, liquid crystal panel, lens, etc. The unit 290 may be an image processing circuit, a liquid crystal display, or the like.

  Next, the processing procedure will be described. FIG. 5 is a flowchart showing a processing procedure in the PC 200 in the first embodiment. FIG. 6 is a flowchart showing a processing procedure in the projector 100 in the first embodiment.

  The interface unit 210 of the PC 200 determines whether or not the input unit 270 has input the write instruction information (step S1). For example, when the user inserts the USB memory 400 into the PC 200 and presses the write instruction button of the PC 200, the input unit 270 inputs the write instruction information.

  When the input unit 270 inputs the write instruction information, the interface unit 210 writes the connection setting data 252 to the USB memory 400 (step S2). The write target may be all of the connection setting data 252 or a part thereof (for example, the upper three connection settings of the priority order).

  The interface unit 110 of the projector 100 determines whether the USB memory 400 has been inserted into the projector 100 (step P1). The user writes the connection setting data 252 in the USB memory 400 and then removes the USB memory 400 from the PC 200 and inserts it into the projector 100. When the USB memory 400 is inserted into the projector 100, the interface unit 110 reads the connection setting data 452 stored in the USB memory 400 and stores the connection setting data 152 in the projection-side storage unit 150 (step P2).

  The control unit 170 causes the projection-side communication unit 130 to execute connection processing for each access point of the wireless LANs 310-1 to 310-3 in the order according to the priority order indicated by the connection setting data 152 (step P3). For example, when the first priority is the wireless LAN 310-3, the second is the wireless LAN 310-1, and the third is the wireless LAN 310-2, the projection-side communication unit 130 is connected to the wireless LAN 310-3 and the wireless LAN 310-. 1. The connection process for the access point of each wireless LAN 310 is executed in the order of wireless LAN 310-2.

  The control unit 170 determines whether or not connection with any access point of the wireless LAN 310 is possible (step P4). For example, when the connection process to the access point of the wireless LAN 310-3 fails and the connection process to the access point of the wireless LAN 310-1 is successful, the control unit 170 causes the projection-side communication unit 130 to use the wireless LAN 310-1.

  When connection to any access point of the wireless LAN 310 is possible, the control unit 170 sends notification information for notifying the projection side communication unit 130 that connection is possible or connection via the wireless LAN 310 is possible. (Step P5). The connection setting data 452 may include destination information such as the IP address of the PC 200, and the projection-side communication unit 130 may determine the transmission destination of the notification information based on the destination information.

  The terminal-side communication unit 220 determines whether notification information has been received from the projector 100 (step S3). When the notification information is received, the terminal side communication unit 220 establishes a connection with the projector 100 (step S4). Also, when the terminal side communication unit 220 receives the notification information, the image information generation unit 260 generates image information such as RGB signals, for example, and the terminal side communication unit 220 passes through the wireless LAN 310 in which the connection process is successful. The image information is transmitted to the projector 100 (step S5).

  The projection unit 160 determines whether the projection-side communication unit 130 has received image information from the PC 200 (step P6). When the projection-side communication unit 130 receives image information, the projection unit 160 generates and projects an image based on the image information (step P7).

  As described above, according to the present embodiment, the PC 200 writes its own connection settings in the USB memory 400 with priorities and causes the projector 100 to read it, thereby connecting the PC 200 to the projector 100 more flexibly and reliably. be able to.

  In addition, according to the present embodiment, the projector 100 can be connected to the PC 200 according to the priority order in the connection setting of the PC 200 regardless of the connection setting of the projector 100, and thus the PC 200 can be more reliably connected to the projector 100. Can be connected.

  Further, according to the present embodiment, the PC 200 can more reliably connect the PC 200 to the projector 100 by transmitting and receiving notification information. Further, according to the present embodiment, the projector 100 can connect to the PC 200 and project an image based on image information from the PC 200 without performing special connection settings.

(Second embodiment)
The PC 200 may update the connection setting data 252 according to a user operation. FIG. 7 is a flowchart showing a processing procedure in the PC 200 in the second embodiment.

  The image information generation unit 260 determines whether the input unit 270 has input confirmation instruction information (step S11). For example, when the user presses the confirmation instruction button of the PC 200, the input unit 270 inputs confirmation instruction information.

  When the input unit 270 inputs confirmation instruction information, the image information generation unit 260 generates image information based on the connection setting data 252, the image data 254, and the like, and the display unit 290 displays a confirmation image based on the image information. Is displayed (step S12).

  FIG. 8 is a diagram illustrating an example of the confirmation image 500 in the second embodiment. The confirmation image 500 indicates the priority for each connection setting, setting name, ESSID (Extended Service Set Identifier), radio wave intensity, encryption method, and the like. Items other than the radio wave intensity are stored as connection setting data 252. The terminal-side communication unit 220 may measure the radio wave intensity at the time of confirmation instruction or the like, and the image information generation unit 260 may generate image information for the confirmation image 500 based on the measurement value.

  While the confirmation image 500 is displayed, the user selects the connection setting to be updated by pressing the enter key on the remote control, raises the priority of the connection setting with the up arrow key on the remote control, and presses the down arrow key on the remote control to The priority of connection setting can be lowered. The input unit 270 inputs these pieces of operation information as priority order information.

  The update unit 280 determines whether or not the input unit 270 has input priority information (step S13). When the input unit 270 inputs priority order information, the update unit 280 updates the connection setting data 252 according to the priority order information (step S14). For example, in a state where the confirmation image 500 shown in FIG. 8 is displayed, when the user performs an operation to increase the priority of the connection setting with the second priority, the update unit 280 uses the priority order in the connection setting data 252. Updates the priority of the second connection setting to the first, and updates the priority of the connection setting of the first priority to the second.

  As described above, according to the present embodiment, the PC 200 can reflect the designation of the priority order by the user in the connection setting data 252, so that the PC 200 can be connected to the projector 100 more flexibly and surely.

  Further, according to the present embodiment, the PC 200 can display the confirmation image 500 to allow the user to confirm the priority order for each current connection setting.

(Other examples)
In addition, application of this invention is not limited to the Example mentioned above, A various deformation | transformation is possible. For example, the connection setting in the connection setting data 252 is not limited to the wireless LAN 310 alone, and may include a wired LAN or a network setting other than the LAN. Further, the method of connecting the projector 100 and the PC 200 may be a method of connecting via an access point of the wireless LAN 310 or a method of connecting the projector 100 and the PC 200 directly.

  Further, information received by the projector 100 from the PC 200 is not limited to image information, and may be audio information indicating audio, control information, or the like, for example. The priority order information input to the input unit 270 is not limited to user operation information, and may be priority order information transmitted from a server, for example.

  The projector 100 is not limited to a liquid crystal projector (transmission type, reflection type such as LCOS), and may be a projector using a DMD (Digital Micromirror Device), for example. DMD is a trademark of Texas Instruments Incorporated.

  Further, the terminal device is not limited to the PC 200, and may be a mobile phone, a PDA, or the like, for example. Further, the information storage medium is not limited to the USB memory 400, and may be, for example, a memory card, a readable / writable disk such as a DVD.

It is a figure which shows an example of the network connection state in a 1st Example. It is a functional block diagram of the projector in a 1st Example. It is a functional block diagram of the USB memory in a 1st Example. It is a functional block diagram of PC in a 1st Example. It is a flowchart which shows the process sequence in PC in a 1st Example. It is a flowchart which shows the process sequence in the projector in a 1st Example. It is a flowchart which shows the process sequence in PC in a 2nd Example. It is a figure which shows an example of the confirmation image in a 2nd Example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 Projector, 110 Interface part (reading part), 130 Projection side communication part, 150 Projection side memory | storage part, 152,252,452 Connection setting data, 160 Projection part, 170 Control part, 200 PC (terminal device), 210 Interface part (Writing unit), 220 terminal side communication unit, 250 terminal side storage unit, 254 image data, 260 image information generation unit, 270 input unit, 280 update unit, 290 display unit, 300 wired LAN, 310 wireless LAN, 400 USB Memory (information storage medium), 410 interface unit, 450 medium side storage unit, 500 confirmation image

Claims (9)

A terminal-side storage unit that stores connection setting data indicating the contents of at least one connection setting and the priority of the connection setting;
A writing unit for writing all or part of the connection setting data to an information storage medium;
A terminal-side communication unit that transmits information to the projector in a state where communication with the projector is enabled by reading all or part of the connection setting data from the information storage medium to the projector;
including,
Terminal device. The terminal device according to claim 1,
An input unit for inputting priority information indicating the priority;
An update unit that updates the priority order in the connection setting data based on the priority order information;
including,
Terminal device. The terminal device according to claim 2,
Based on the connection setting data, including a display unit for displaying an image indicating a priority for each connection setting in the connection setting data,
Terminal device. In the terminal device in any one of Claims 1-3,
The terminal-side communication unit establishes a connection with the projector when receiving notification information indicating that connection is possible from the projector;
Terminal measures. A reading unit that reads the connection setting data from an information storage medium in which connection setting data indicating the content of at least one connection setting and the priority of the connection setting is stored;
A projection-side communication unit;
Based on the connection setting data, a control unit that causes the projection-side communication unit to execute connection processing with respect to the terminal device or an access point of a network to which the terminal device belongs, in an order corresponding to the priority order;
including,
projector. The projector according to claim 5, wherein
The control unit causes the projection-side communication unit to transmit notification information indicating that connection is possible toward the terminal device;
projector. A terminal device according to any one of claims 1 to 4,
A projector according to any one of claims 5 and 6;
including,
Projection system. A medium-side storage unit that stores connection setting data indicating the contents of at least one connection setting and the priority of the connection setting;
An interface unit that writes the connection setting data stored in the terminal device to the medium-side storage unit and reads the connection setting data to the projector;
including,
Information storage medium. In the connection setting method for the terminal device to connect to the projector,
The terminal device executes a step of writing all or part of connection setting data indicating the content of at least one connection setting and the priority of the connection setting in an information storage medium,
The projector is
Reading all or part of the connection setting data stored in the information storage medium;
Connecting to the terminal device or an access point of the network to which the terminal device belongs in an order according to the priority;
Transmitting notification information indicating that connection is possible to the terminal device;
Run
The terminal device executes a step of establishing a connection with the projector based on the notification information.
Connection setting method.

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