WO2010052767A1 - Systeme de projecteur, projecteur et procede de reception de donnees - Google Patents

Systeme de projecteur, projecteur et procede de reception de donnees Download PDF

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Publication number
WO2010052767A1
WO2010052767A1 PCT/JP2008/070094 JP2008070094W WO2010052767A1 WO 2010052767 A1 WO2010052767 A1 WO 2010052767A1 JP 2008070094 W JP2008070094 W JP 2008070094W WO 2010052767 A1 WO2010052767 A1 WO 2010052767A1
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WIPO (PCT)
Prior art keywords
projector
request
unit
data
terminal
Prior art date
Application number
PCT/JP2008/070094
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English (en)
Japanese (ja)
Inventor
一哉 本間
Original Assignee
Ｎｅｃディスプレイソリューションズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Ｎｅｃディスプレイソリューションズ株式会社 filed Critical Ｎｅｃディスプレイソリューションズ株式会社
Priority to JP2010536604A priority Critical patent/JP5234850B2/ja
Priority to PCT/JP2008/070094 priority patent/WO2010052767A1/fr
Publication of WO2010052767A1 publication Critical patent/WO2010052767A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2137—Time limited access, e.g. to a computer or data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/08—Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background

Definitions

  • the present invention relates to a projector system including an information terminal device and a projector connected via a network, and a data communication control method performed in the system.
  • Japanese Patent Laid-Open No. 2005-208823 discloses a system in which a plurality of information terminal devices and a projector are connected to a network to share an image data file held by the information terminal device.
  • Patent Document 2 Japanese Patent Laid-Open No. 2005-266777
  • a personal computer storing materials is connected to a projector, and the presentation proceeds while referring to the materials projected on the screen using the projector.
  • a system is disclosed.
  • FIG. 1 is a block diagram illustrating a configuration of a projector system that performs a presentation or a conference using a system disclosed in Patent Document 2.
  • FIG. 1 a space 3006 in which a conference such as a conference room or a classroom is held, a space 3007 in which no conference is held, and a transmission terminal 3001, a projector 3002, a reception terminal 3003 1 , and a space 3007 are arranged in the space 3006.
  • a receiving terminal 3003 2 arranged and a network 3009 connecting them are shown.
  • FIG. 2 is a diagram illustrating a communication state performed between the transmission terminal 3001, the projector 3002, the reception terminal 3003 1 , and the reception terminal 3003 2 performed via the network 3009.
  • the projector 3002 receives a connection request generated by a connection process performed by the transmission terminal 3001 and the reception terminals 3003 1 and 3003 2 and receives an image data file and transmits an IP address.
  • the transmission terminal 3001 transmits data such as a still image, a moving image, and sound that are held via the network 9 to the projector 3002, and the projector 3002 reproduces a still image, a moving image, and sound that are based on the transmitted data.
  • Receiving terminals 3003 1 and 3003 2 make an inquiry about the IP address of transmitting terminal 3001 that has transmitted data via network 9, and obtains the IP address of transmitting terminal 3001 from projector 2 that has received the inquiry. . After acquiring the IP address, the receiving terminals 3003 1 and 3003 2 access the transmitting terminal 3001 using the acquired IP address, and acquire data such as still images, moving images, and audio. As a result, the receiving terminals 3003 1 and 3003 2 participate in the conference.
  • Terminal projector 3002 acceptance period to accept a connection process of the transmitting terminal 3001 and the reception terminal 3003 1 is a while the projector 3002 is operating, the transmission terminal 3001, the user of the receiving terminal 3003 1, 3003 2 used Can be connected to the projector 3002 at any time.
  • Participants to the conference can usually confirm the projected image of the projector 3002, believed to be the user of the receiving terminal 3003 1 disposed in the same space 3006 of the projector 3002.
  • a connection request from the receiving terminal 3003 2 disposed in the space 3007 where the projector 3002 is not disposed is also the same as the receiving terminal 3003 1. I will accept it. For this reason, there is a risk that is participating in the illegal meeting to outsiders who operates the receiving terminal 3003 2.
  • connection authentication information when connecting the transmission terminal 3001 and the reception terminal 3003 1 to the projector 3002, on top you are troublesome to enter the connection authentication information, in some way, if the outsider is to obtain a connection authentication information Will be able to participate in the conference fraudulently. Therefore, there is a need for a method that can more easily and reliably prevent outsiders from participating in a conference illegally.
  • the projector 3002 transmits the IP address of the transmission terminal in response to the inquiry, and the projector 3002 is configured to always accept connection processing. For this reason, even if the party outside the conference knows the IP address of the projector 3002, information such as the IP address of the transmitting terminal 3001 used in the conference is obtained from the projector 3002 via the network 3009. Since it is possible to receive and acquire data used in the conference, there is a risk that outsiders may be aware of the presence and content of the conference. JP 2005-208823 A JP 2005-266777 A
  • an object of the present invention is to more easily and reliably prevent outsiders from participating in a conference illegally, and to reduce the risk of outsiders being aware of the existence and content of the conference. It is an object of the present invention to provide a projector system, a projector, and a data receiving method that can perform the above.
  • a projector system of the present invention is a projector system including a transmission terminal, a reception terminal, and a projector connected via a network
  • the transmission terminal includes a transmission terminal communication unit that makes a first request for data transmission to the projector
  • the receiving terminal includes a receiving terminal communication unit that makes a second request for data transmission to the projector
  • the projector is An operation unit that accepts user input; A projection unit; Triggered by a predetermined input to the operation unit, setting a reception period for receiving the first request and the second request, and setting the projection unit to project an image indicating the reception period during the reception period And a section.
  • the projector of the present invention constitutes a projector system together with a transmission terminal and a reception terminal connected via a network, Receiving a first request for data transmission from the transmitting terminal; A projector for receiving a second request for data transmission from the receiving terminal; An operation unit that accepts user input; A projection unit; A setting unit that determines a reception period for receiving the first request and the second request with a predetermined input to the operation unit as a trigger, and projects a video to the effect that the reception period is during the reception period. And.
  • a data receiving method is a data receiving method performed in a projector system including a transmitting terminal, a receiving terminal, and a projector connected via a network,
  • the transmitting terminal makes a first request for data transmission to the projector;
  • the receiving terminal makes a second request for data transmission to the projector;
  • the projector is A video indicating that a reception period for receiving transmission data from the transmission terminal communication unit and the reception terminal communication unit is determined and a reception period during the reception period is triggered by a predetermined input to an operation unit that receives user input. Is projected on the projection unit.
  • the projector accepts a request from the transmission terminal or the reception terminal as a period set by a predetermined input by the user.
  • the reception period cannot be known, and information on the transmitting terminal used in the conference cannot be received from the projector.
  • the outsider cannot know the existence of the conference, cannot receive data from the transmission terminal, and cannot participate in the conference.
  • FIG. 7 is a flowchart illustrating an operation of a user I / F unit illustrated in FIG. 6. It is a flowchart explaining operation
  • FIG. 3 is a block diagram showing the configuration of the first embodiment of the projector system according to the present invention.
  • This embodiment includes, as shown in FIG. 3, a transmitting terminal 1, a projector 2 ', the receiver terminal 3 1, the network 9 connecting these.
  • the transmitting terminal 1, the projector 2 ', and the receiving terminal 3 1 is disposed in a space 6 the meeting takes place, such as a conference room or classroom.
  • the transmitting terminal 1 has only the transmission function
  • the reception terminal 3 1 shall have only the reception function, they may as a terminal having transmitting and receiving functions.
  • FIG. 4 is a block diagram showing the configuration of the transmission terminal 1.
  • the transmission terminal 1 includes a user I / F unit 101, a projector information collection unit 102, a data transmission destination management unit 103, a data input unit 104, a data compression unit 105, and a data transmission control unit 106.
  • the user I / F unit 101 receives an instruction input from the user, and connects to the projector information collection unit 102, the data transmission destination management unit 103, and the data input unit 104. It operates as follows according to the signal.
  • the user I / F unit 101 When the user I / F unit 101 receives a projector information collection instruction for collecting projector information including the projector name and IP address of each projector for the projector connected to the network 9, the user I / F unit 101 receives the projector information collection unit. To 102.
  • the user I / F unit 101 When the user I / F unit 101 receives the projector information of each projector via the communication unit 107 and the projector information collection unit 102, the user I / F unit 101 creates a list of projector names included in the projector information and becomes a data transmission destination. In order to prompt the user to select a projector, a list of the created projector names is output to the data input unit to be displayed on the display unit included in the output device 108.
  • the user I / F unit 101 stores the projector information of the selected projector 2 ′ as data.
  • the data is output to the transmission destination management unit 103.
  • Projector information collecting unit 102 When the projector information collection unit 102 receives the projector information collection instruction output from the user I / F unit 101, the projector information collection unit 102 sends a projector information transmission request for transmitting the projector information to the network 9 via the communication unit 107. Send to all connected projectors. Thereafter, when projector information from each projector is received via the communication unit 107, the projector information collection unit 102 outputs the received projector information to the user I / F unit 101.
  • Data transmission destination management unit 103 When receiving the projector information output from the user I / F unit 101, the data transmission destination management unit 103 extracts the IP address of the projector 2 ′ included in the projector information, and transmits data based on the IP address. A data transmission permission request for requesting permission is transmitted to the projector 2 ′ via the communication unit 107.
  • the data transmission permission request includes terminal information including the terminal name and IP address of the transmission terminal 1.
  • the data transmission destination management unit 103 When the data transmission destination management unit 103 receives a data transmission permission response permitting data transmission from the projector 2 ′ via the communication unit 107, the data transmission destination management unit 103 starts to transmit data to the projector 2 ′.
  • the instructing transmission start instruction is output to the data transmission destination control unit 106.
  • the data transmission destination management unit 103 via the communication unit 107 and the projector 2 ', from the receiving terminal 3 1, upon receiving the data reception permission request for requesting to allow reception of data, the data receiving permission received extracting the IP address of the receiving terminal 3 1 included in the request and the data receiving permission response for permitting the reception of data using the same.
  • the data connection destination management unit 103 outputs to the data transmission destination control unit 106, a transmission start instruction for instructing to start sending data to the receiving terminal 3 1.
  • Data input unit 104 When data such as a still image, a moving image, and audio is sent from the user I / F unit 101, the data input unit 104 outputs these data to the data compression unit 105 and the output device 108.
  • the output device 108 includes a display unit and a speaker, and performs screen display and sounding operation based on data input using these. At this time, the data input unit 104 video captures the screen displayed on the display unit of the output device 108 and outputs the generated frame data to the data compression unit 105.
  • Data compression unit 105 The data compression unit 105 compresses the data output from the data input unit 104 and outputs the compressed data to the data transmission destination control unit 106.
  • Data destination control unit 106 When the transmission start instruction is output from the data transmission destination management unit 103, the data transmission destination control unit 106 transmits the data output from the data compression unit 105 via the communication unit 107 to the projector 2 ′ or the reception terminal 3 1. Send to.
  • the communication unit 107 communicates with the projector 2 'and the reception terminal 3 1 via the network 9, connected to the projector information collection unit 102, a data transmission destination management unit 103, a data transmission control section 106.
  • the output device 108 includes a display unit and a speaker, and performs screen display and sounding operation based on data from the data input unit 104 using these.
  • the receiving terminal 3 1 includes a user I / F unit 301, and conference information collecting unit 302, a data receiving destination management unit 303, an output unit 304, a data development unit 305, a data reception control A unit 306, a communication unit 307, and an output device 308.
  • the user I / F unit 301 receives an instruction input from the user, and connects to the conference information collection unit 302, the data transmission destination management unit 303, and the output unit 304.
  • the instruction input content and signals from each connected unit Depending on the operation, it operates as follows.
  • the conference information includes the conference name of the conference in which each projector is used, and the IP address of the transmission terminal and projector used in the conference.
  • the user I / F unit 301 When the user I / F unit 301 receives conference information from each projector via the communication unit 307 and the conference information collection unit 302, the user I / F unit 301 creates a list of conference names included in the conference information and selects a conference to participate in. In order to prompt the user, display data for displaying a list of created conference names is output to the output unit 304 to be displayed on the display unit of the output device 308.
  • the user I / F unit 301 when the user I / F unit 301 receives an instruction input for selecting a conference to join, the user I / F unit 301 outputs conference information of the selected conference to the data reception destination management unit 303.
  • Meeting information collection unit 302 When the conference information collection unit 302 receives the conference information collection instruction from the user I / F unit 301, the conference information collection unit 302 is connected to the network 9 via the communication unit 307 and sends a conference information transmission request for requesting transmission of the conference information. Send to all existing projectors. Thereafter, when the conference information collection unit 302 receives the conference information from each projector via the communication unit 307, the conference information collection unit 302 outputs the received conference information to the user I / F unit 301.
  • Data receiver management unit 303 Upon receiving the conference information from the user I / F unit 301, the data reception destination management unit 303 extracts the IP addresses of the transmission terminal 1 and the projector 2 ′ included in the conference information and transfers the IP address of the transmission terminal 1 to the transfer destination. Is transmitted to the projector 2 ′ via the communication unit 307 based on the IP address of the projector 2 ′. Note that the data reception permission request includes also the terminal information including the terminal name and IP address of the receiving terminal 3 1.
  • the data reception destination management unit 303 receives an instruction to start reception of data from the transmission terminal 1.
  • a start instruction is output to the data reception control unit 306.
  • transmission and reception of data received authorization request and the data receiving permission response performed between the receiving terminal 3 1 a transmitting terminal 1, 'is assumed to be performed via a projector 2' projector 2 without passing through the receiving terminal 3 1 a transmitting terminal 1 may be transmitted and received directly.
  • Output unit 304 The output unit 304 controls the display unit and speaker display operation and sounding operation of the output device 308.
  • display data for displaying a list of conference names is received from the user I / F unit 301
  • the output of the conference name Are displayed on the output device 308.
  • still image or moving image data is received from the data expansion unit 306, the data is converted into a video signal and displayed on the display unit of the output device 308, and audio data is received from the data expansion unit 305. Converts the data into an audio signal and outputs it from the speaker of the output device 308.
  • Data expansion unit 305 When the data received from the data reception control unit 306 is compressed, the data expansion unit 305 expands the data and outputs the expanded data to the output unit 304.
  • Data reception control unit 306 When the reception start instruction is output from the data reception destination management unit 303, the data reception control unit 306 transfers the output reception start instruction to the communication unit 307 and causes the communication unit 307 to receive data from the transmission terminal 1. The data reception control unit 306 outputs the data received by the communication unit 307 to the data development unit 305.
  • the communication unit 307 It communicates with the projector 2 ′ and the transmission terminal 1 via the network 9, and is connected to the conference information collection unit 302, the data reception destination management unit 303, and the data reception control unit 306.
  • the output device 108 includes a display unit and a speaker, and performs screen display and sounding operation based on data from the output unit 304 using these.
  • the projector 2 ′ includes a user I / F unit 201, a response unit 202, a connection destination management unit 203, an output unit 204, a data development unit 205, a data reception control unit 206, It has the communication part 207 which is a receiving part, and the memory
  • FIG. 6 the projector 2 ′ includes a user I / F unit 201, a response unit 202, a connection destination management unit 203, an output unit 204, a data development unit 205, a data reception control unit 206, It has the communication part 207 which is a receiving part, and the memory
  • the user I / F unit 201 includes an operation unit 2011 and a setting unit 2012.
  • Operation unit 2011 The operation unit 2011 is an input operation performed by the user, and outputs a signal indicating the content of the input operation to the setting unit 2012. Note that the operation unit 2011 accepts a remote operation using a remote controller or the like in addition to an operation using a button.
  • the setting unit 2012 is connected to the response unit 202, the storage unit 208, the transfer unit 2031 and the connection permission unit 2032 that configure the connection destination management unit 203, and the projection unit 2041 that configures the output unit 204.
  • the setting unit 2012 stores the conference name in the storage unit 208 as conference information.
  • the setting unit 2012 inputs to the operation unit 2011 that the user starts accepting a projector information transmission request and starts accepting a conference information transmission request from the operation unit 2011.
  • a certain period is set as a reception period for the projector information transmission request and the conference information transmission request.
  • the setting unit 2012 starts measuring time and outputs a response start instruction for instructing the start of a response to the response unit 202, as well as a projector information transmission request and a conference information transmission request.
  • a reception period projection instruction for instructing to project information indicating that it is during the reception period is output to the output unit 204.
  • the setting unit 2012 outputs a response end instruction to end the reception to the response unit 202 and stops the reception period projection instruction output to the output unit 204.
  • the response unit 202 is connected to the communication unit 207 and the setting unit 2012 of the user I / F unit 201, and in a reception period from when a response start instruction is output from the setting unit 2012 to when a response end instruction is output. Only the projector information transmission request and the conference information transmission request are received. Specifically, the following operation is performed in the reception period.
  • the communication unit 207 When the communication unit 207 receives the projector information transmission request from the transmitting terminal 1 through the network 9, and outputs to the response unit 202 and via the network 9 receives the meeting information transmission request from the receiving terminal 3. 1, the responding section 202 Output.
  • the response unit 202 When the response unit 202 receives the projector information transmission request from the transmission terminal 1 via the communication unit 207, the response unit 202 receives the projector information stored in the storage unit 208 via the setting unit 2012 when it is in the reception period. Read and return to the transmitting terminal 1 via the communication unit 207. Even if a projector information transmission request is received from the transmission terminal 1 outside the reception period, the projector information is not returned.
  • the response unit 202 receives the projector information transmission request through the communication unit 207 from the conference information transmission request from the receiving terminal 3 1, if it is accepting period, stores via the setting unit 2012 208 read conference information stored in, and returns to the reception terminal 3 1 via the communication unit 207. It is received conference information transmission request from the receiving terminal 3 1 outside the application period, no replies projector information.
  • connection destination management unit 203 includes a transfer unit 2031 and a connection permission unit 2032.
  • Transfer unit 2031 Transfer unit 2031, a communication unit 207, setting unit 2012, intended to be connected to the connection permission unit 2032, via the communication unit 207 receives the data reception permission request from the receiving terminal 3 1, received data received permission request And the received data reception permission request is sent to the sending terminal 1 via the communication unit 207 based on the extracted forwarding destination IP address. Forward.
  • the transfer unit 2031, with the transmitting terminal 1 is not connected to the projector 2 ', when receiving the data reception permission request from the receiving terminal 3 1 receives a response indicating that the meeting has not started to reply to the terminal 3 1.
  • connection permission unit 2032 The connection permission unit 2032 is connected to the data control reception unit 206, the communication unit 207, the storage unit 208, and the setting unit 2012.
  • the data reception permission response is received from the transmission terminal 1 via the communication unit 207, the received data reception permission to extract destination IP address contained in the response (reception terminal 3 1 of IP addresses), the received data received permission response, based on the extracted destination IP address, via the communication unit 207, transferred to the receiving terminal 3 1.
  • connection permission unit 2032 When the connection permission unit 2032 receives the data transmission permission request from the transmission terminal 1 via the communication unit 207, the connection permission unit 2032 returns a data transmission permission response to the transmission terminal 1 via the communication unit 207 and from the transmission terminal 1. A reception start instruction for starting reception of the data is output to the data reception control unit 206.
  • the connection permission unit 2032 receives a data transmission permission request from the transmission terminal 1 in a state where another transmission terminal is already connected to the projector 2 ′, the connection permission unit 2032 responds that the projector 2 ′ is being used in the conference. Reply.
  • connection permission unit 2032 extracts the IP address of the transmission terminal 1 included in the received data transmission permission request, and associates the extracted IP address of the transmission terminal 1 with the conference name stored in the storage unit 208. In addition, it is stored in the storage unit 208 as conference information. Note that if the conference name is not stored in the storage unit 208, the connection permission unit 2032 uses the terminal name of the transmission terminal 1 included in the data transmission permission request as the conference name.
  • the output unit 204 includes a projection unit 2041 and a speaker 2042, the projection unit 2041 displays an image based on signals from the data development unit 205 and the setting unit 2012, and the speaker 2042 receives a signal from the data development unit 205. Perform ringing. If the data output from the data development unit 205 is still image data or moving image data, the projection unit 2041 converts the data into a video signal and projects it from the projection unit onto the projection surface. If the data output from the data expansion unit 205 is audio data, the speaker 2042 converts the data into an audio signal and outputs the audio signal.
  • the projection unit 2041 is in the reception period of the projector information transmission request and the conference information transmission request after the reception period projection instruction is output from the setting unit 2012 until the reception period projection end instruction is output. Is projected onto the projection surface.
  • Data expansion unit 205 causes the projection unit 2041 and the speaker 2042 to perform display operation and sound generation operation according to data from the data reception control unit 206. At this time, if the data from the data reception control unit 206 is compressed, the data is expanded, and the projection unit 2041 and the speaker 2042 are caused to perform display operation and sounding operation by the expanded data.
  • Data reception control unit 206 When the reception start instruction is output from the connection permission unit 2032, the data reception control unit 206 transfers the reception start instruction to the communication unit 207, receives data from the transmission terminal 1 via the communication unit 207, and receives received data Is output to the data expansion unit 205.
  • the communication unit 207 communicates with the transmitting terminal 1 and the receiving terminal 3 1.
  • Storage unit 208 stores projector information and conference information. Note that if the transmission speed of the network 9 is sufficiently high, data compression and decompression is not necessary, so the data compression unit 105 and the data decompression units 205 and 305 are not essential components.
  • FIG. 7 is a diagram showing an outline of the operation of the projector system of this embodiment.
  • the reception period of the projector information transmission request and the conference information transmission request is set to a certain period after the reception start instruction is input by the user.
  • the user of the receiving terminal 3 1 present in a particular space 6, of course if operating the projector 2 'themselves, even if another user operates, since it is possible to confirm the operation visually You can know that the acceptance period has started.
  • the user of the receiving terminal 3 1 by sending to the projector 2' meeting information transmission request for a connection process during the application period the projector 2 can receive the meeting information from. Therefore, the user of the receiving terminal 3 1 receives data from the transmitting terminal 1 may participate in the conference.
  • the receiving terminal 3 2 of a user in a different space 7 is because it can not verify that the projector 2 'is operated, do not know the acceptance period is started.
  • the projector 2 ′ since it is not a reception period, the projector 2 ′ does not transmit the conference information. Absent.
  • the reception terminal 3 2 users can not know the existence of a meeting taking place in a particular space 6 can not be participating illegally in the conference.
  • the sending terminal 1 is a projector 2 meeting information 'and the conference starts operation to send data to, as shown in FIG. 9, the receiving terminal 3 1 projector 2' from And a conference participation operation for receiving data from the transmission terminal 1 based on the IP address of the transmission terminal 1 included in the conference information.
  • any user in the specific space 6 inputs an acceptance start instruction at the user I / F unit 201 (step B ⁇ b> 1).
  • the user I / F unit 201 sets a certain period after the reception start instruction is input as a reception period for the projector information transmission request and the conference information transmission request, and outputs a response start instruction to the response unit 202 (step B2). ). In response to this, the response unit 202 starts accepting the projector information transmission request and the conference information transmission request.
  • the user I / F unit 201 outputs a reception period projection instruction to the projection unit 2041 (step B3).
  • the projection unit 2041 projects an image indicating that the projector information transmission request and the conference information transmission request are being accepted on the projection surface, and indicates that the acceptance period has started, the transmitting terminal 1 and the receiving terminal 3 1. Let users know.
  • the user of the transmission terminal 1 confirms that the projector information transmission request and the conference information transmission request are being accepted, and the user I / F unit 101 operates the projector information collection instruction. Perform (Step A1).
  • User I / F unit 101 outputs a projector information collection instruction to projector information collection unit 102 (step A2).
  • the projector information collection unit 102 transmits a projector information transmission request to all projectors connected to the network 9 (step A3).
  • the response unit 202 when the projector information transmission request is received from the transmission terminal 1 during the reception period, the response unit 202 returns the projector information stored in the storage unit 208 to the transmission terminal 1 (step A4). ).
  • the projector information collection unit 102 when the projector information collection unit 102 receives the projector information from the projector 2 ', the projector information collection unit 102 outputs the received projector information to the user I / F unit 101 (step A5).
  • the user I / F unit 101 creates a list of projector names based on the projector information output from the projector information collecting unit 102, displays the projector name on the display unit of the output device 108 via the data input unit 104, and transmits to the transmission terminal 1. (Step A6).
  • the user of the transmission terminal 1 can select a projector as a data transmission destination with reference to the displayed list.
  • connection authentication information may be input to the user of the transmission terminal 1 and connection authentication may be performed in the projector 2 ′.
  • the user I / F unit 101 outputs the projector information of the selected projector 2 'to the data transmission destination management unit 103 (step A8).
  • the data transmission destination management unit 103 transmits a data transmission permission request to the projector 2 '(step A9).
  • the connection destination management unit 203 when receiving the data transmission permission request from the transmission terminal 1, the connection destination management unit 203 returns a data transmission permission response to the transmission terminal 1 (step A10), and receives a reception start instruction from the data reception control unit. It outputs to 206 (step A11).
  • the data transmission destination management unit 103 when receiving the data transmission permission response from the projector 2 ', the data transmission destination management unit 103 outputs a transmission start instruction to the data transmission destination control unit 106 (step A12).
  • the data transmitted from the transmission terminal 1 is projected by the projector 2 '.
  • the user I / F unit 201 outputs a response end instruction to the response unit 202 when a certain period of time has elapsed after the reception start instruction is input (step B ⁇ b> 4).
  • the response unit 202 ends acceptance of the projector information transmission request and the conference information transmission request.
  • the user I / F unit 201 outputs a reception period projection end instruction to the output unit 204 (step B5).
  • the projection portion 2041 ends the projection of the information that is being accepted duration of the projector information transmission request and the meeting information transmission request, the user of the transmitting terminal 1 and the receiving terminal 3 1 that it is not acceptable period To inform.
  • steps B1 to B3 similar to those in FIG. 8 are performed, and the projector 2 'starts accepting the projector information transmission request and the conference information transmission request.
  • the receiving terminal 3 1 users, and confirm that the accepting period of the projector information transmission request and the meeting information transmission request at the user I / F unit 301, the operation of the meeting information collection instructing Perform (Step C1).
  • the user I / F unit 301 outputs a conference information collection instruction to the conference information collection unit 302 (step C2).
  • the conference information collection unit 302 transmits a conference information transmission request to all projectors connected to the network 9 (step C3).
  • the response unit 202 In the projector 2 ', the response unit 202, during the application period, when receiving the conference information transmission request from the receiving terminal 3 1, returns the meeting information stored in the storage unit 208 to the receiving terminal 3 1 (Step C4 ).
  • meeting information collecting unit 302 receives the conference information from the projector 2 ', outputs the received conference information on the user I / F unit 301 (step C5).
  • the user I / F unit 301 creates a list of conference names based on the conference information output from the conference information collection unit 302 and displays the list on the display unit of the output device 308 via the output unit 304 for reception. presented to the user of the terminal 3 1 (step C6).
  • the receiving terminal 3 1 users, in the user I / F unit 301 performs an operation of selecting the conference to join (step C7).
  • to enter the connection authentication information to the receiving terminal 3 1 of the user may perform connection authentication in the projector 2 'or the transmitting terminal 1 .
  • the user I / F unit 301 outputs the conference information of the selected conference to the data reception destination management unit 303 (step C8).
  • the data reception destination management unit 303 transmits a data reception permission request to the projector 2 '(step C9).
  • the destination management unit 203 receives the data reception permission request from the receiving terminal 3 1, transfers the received data received authorization request to the transmitting terminal 1 (step C10).
  • the destination management unit 203 receives the data reception permission response from the sending terminal 1 (step C11), and transfers the received data received authorization response to the transmitting terminal 3 1 (step C12).
  • data reception destination management unit 303 receives the data reception permission response from the projector 2 ', and outputs a reception start command to the data reception control unit 306 (step C13).
  • Characteristic operation of the projector 2 'of this embodiment is roughly request receiving that receives operations and reception operations for accepting an operation by a user, from the transmitting terminal 1 and the receiving terminal 3 1 projector information transmission request and the meeting information transmission request It can be divided into operation.
  • the operation accepting operation is an operation performed by the user I / F unit 201.
  • the user I / F unit 201 determines whether or not the operation performed by the user is a reception start instruction input (step 1001).
  • the user I / F unit 201 sets a certain period after the reception start instruction input is performed as a reception period of the projector information transmission request and the conference information transmission request. Then, the reception period projection instruction is output to the output unit 204 (step 1002). Also, the user I / F unit 201 outputs a response start instruction to the response unit 202 (step 1003).
  • the user I / F unit 201 starts measuring a predetermined time as a reception period using the timer function (step 1004).
  • the user I / F unit 201 waits for the end of measurement for a predetermined time (step 1005), and when the measurement for the predetermined time ends, outputs a response end instruction to the response unit 202 (step 1006), and receives a reception period projection end instruction. Is output to the output unit 204 (step 1007).
  • the request acceptance operation is an operation performed by the response unit 202.
  • the response unit 202 monitors whether a response start instruction is output from the user I / F unit 201 (step 1101).
  • the response unit 202 When the response start instruction is output from the user I / F unit 201, the response unit 202 starts accepting the projector information transmission request and the conference information transmission request (step 1102).
  • the response unit 202 monitors whether or not the projector information transmission request and the conference information transmission request are received (step 1103).
  • the projector information transmission request or the conference information transmission request is received, the projector information or the conference information is received.
  • Information is returned (step 1104).
  • the response unit 202 monitors whether a response end instruction is output from the user I / F unit 201 while monitoring whether the projector information transmission request and the conference information transmission request are received ( Step 1105).
  • the response unit 202 ends the reception of the projector information transmission request and the conference information transmission request (step 1106).
  • the response unit 202 repeats the processing of steps 1101 to 1106.
  • the projector 2 ′ sets the reception period of the conference information transmission request as a certain period after the reception start instruction is input by the user, and only in the reception period is the receiving terminal 3 1.
  • the conference information transmission request is received from the server, the conference information including the IP address of the transmission terminal 1 is returned.
  • the reception period is not known, and information on the transmission terminal 1 used in the conference cannot be received from the projector 2 ′.
  • a user (outsider) in another space 7 cannot know the existence of the conference, cannot receive data from the transmission terminal 1, and cannot participate in the conference.
  • the transmission terminal 1 and the receiving terminal 3 since only a certain period from when performed reception start instruction input by the user does not accept the projector information transmission request and meeting information transmission request, the transmission terminal 1 and the receiving terminal 3 1, a number of projectors information and conference information not desired Are collected, and it is possible to prevent the user from being confused as to which projector to connect to and which conference to join.
  • the transmitting terminal 1 and the receiving terminal 3 are projected. 1 user can be informed that it is during the reception period.
  • the projector 2 ′ in the first embodiment does not accept the projector information transmission request and the conference information transmission request after a certain period after the reception start instruction is input by the user.
  • the projector 2 ′ does not accept the data transmission permission request and the data reception permission request in addition to the projector information transmission request and the conference information transmission request.
  • connection destination management unit 203 provides a reception period for receiving a connection request or a participation request, and learns a connection request or participation request transmission source outside the reception period.
  • a transmission source having a large number of connection requests is estimated as an outsider.
  • the projector system according to the second embodiment of the present invention is different in operation of the projector 2 'from the first embodiment.
  • the configuration of the projector 2 ′ of the present embodiment is the same as that of the projector 2 ′ of the first embodiment shown in FIG. 6, but the operation of the setting unit 2012 configuring the user I / F unit 201 and connection destination management The operations of the transfer unit 2031 and the connection permission unit 2032 constituting the unit 203 are different.
  • the setting unit 2012 When the user inputs a reception start instruction in the operation unit 2011, the setting unit 2012 displays a projector information transmission request, a conference information transmission request, and a data transmission permission request for a certain period after the reception start instruction is input. And the reception period of each request including the data reception permission request.
  • the reception start instruction input is an operation in which a response start instruction operation and a reception start instruction operation for instructing to start reception of a data transmission permission request and a data reception permission request are combined into one operation. . Note that the response start instruction operation and the reception start instruction operation may be performed separately.
  • the setting unit 2012 when the reception start instruction is input from the operation unit 2011, the setting unit 2012 outputs a response start instruction to the response unit 202 and outputs a reception start instruction to the connection destination management unit 203. Further, the setting unit 2012 outputs a reception period projection instruction for instructing to project information indicating that each request is being received to the output unit 204.
  • the setting unit 2012 outputs a response end instruction to the response unit 202 when measurement of a predetermined time is completed, and receives a reception end instruction for instructing to end reception of the data transmission permission request and the data reception permission request.
  • the data is output to the connection destination management unit 203.
  • the setting unit 2012 outputs to the output unit 204 a reception period projection end instruction for instructing to erase information indicating that the request is being received during the request period.
  • connection permission unit 2032 accepts the data transmission permission request only during the reception period from when the reception start instruction is output from the user I / F unit 201 to when the reception end instruction is output.
  • connection permission unit 2032 when receiving a data transmission permission request from the transmission terminal 1 via the communication unit 207 during the reception period, the connection permission unit 2032 sends a data transmission permission response to the transmission terminal 1 via the communication unit 207. Send back. Even if the connection permission unit 2032 receives a data transmission permission request from the transmission terminal 1 outside the reception period, the connection permission unit 2032 does not transmit a data transmission permission response.
  • connection permission unit 2032 extracts terminal information included in the data transmission permission request. For a transmission terminal that transmits a data transmission permission request outside the reception period, the extracted terminal information is stored. Then, it is stored in the storage unit 208 as terminal information of a terminal to be rejected (hereinafter referred to as a reject terminal).
  • the connection permission unit 2032 receives the data transmission permission request via the communication unit 207 during the reception period after the terminal information of the rejection terminal is stored in the storage unit 208. If it is a data transmission permission request from the refusal terminal, a data reception permission response is not returned.
  • connection permission unit 2032 determines that there is a high possibility that the request is a data transmission permission request from a transmission terminal operated by an outsider. May be projected by the projection unit 2041 of the output unit 204.
  • Transfer unit 2031 accepts the data reception permission request only during the reception period from when the reception start instruction is output from the user I / F unit 201 to when the reception end instruction is output.
  • the transfer unit 2031, the reception period and transfers the via the communication unit 207 receives the data reception permission request from the receiving terminal 3 1, the received data received authorization request to the transmitting terminal 1. Also receive data receiving permission request from the receiving terminal 3 1 outside the application period, not transferred to the sending terminal 1.
  • the transfer unit 2031 extracts the terminal information included in the data transmission permission request, and for the transmission terminal whose number of times of transmitting the data transmission permission request outside the reception period is a predetermined number or more, the extracted terminal information is The information is stored in the storage unit 208 as terminal information of a terminal to be rejected (hereinafter referred to as a reject terminal).
  • the transfer unit 2031 After storing the terminal information of the rejected terminal in the storage unit 208, the transfer unit 2031 refers to the storage unit 208 when receiving a data reception permission request through the communication unit 207 during the reception period during the reception period. To confirm whether the request is a data transmission permission request from the rejection terminal. If the request is a data transmission permission request from the rejection terminal, the request is not transferred to the transmission terminal 1.
  • the transfer unit 2031 may cause the projection unit 2041 of the output unit 204 to project an alert video indicating the same as the connection permission unit 2032.
  • the transfer unit 2031 When the transfer unit 2031 receives a data transmission permission request from the refusal terminal, the transfer unit 2031 sends a data reception permission request via the communication unit 207 together with information indicating that there is a high possibility that the receiving terminal is operated by an outsider. It may be transferred to the transmission terminal 1.
  • the operations of the projector system according to the present embodiment include a conference start operation shown in FIG. 12 and a conference participation operation shown in FIG.
  • any user in the specific space 6 inputs a reception start instruction at the user I / F unit 201 (step B ⁇ b> 11).
  • the user I / F unit 201 sets a certain period after the reception start instruction is input as the reception period of each request, and outputs a response start instruction to the response unit 202 (step B2). In response to this, the response unit 202 starts accepting the projector information transmission request and the conference information transmission request.
  • the user I / F unit 201 outputs a reception start instruction to the connection destination management unit 203 (step B12).
  • the connection destination management unit 203 starts accepting the data transmission permission request and the data reception permission request.
  • the user I / F unit 201 outputs a reception period projection instruction to the projection unit 2041 (step B13).
  • the projection unit 2041 projects information indicating that each request is being accepted to the projection surface.
  • step A10 when the connection destination management unit 203 receives a data transmission permission request from the transmission terminal 1 during the reception period, it returns a data transmission permission response to the transmission terminal 1.
  • the user I / F unit 201 outputs a response end instruction to the response unit 202 when a certain period of time has elapsed after the reception start instruction is input (step B ⁇ b> 4).
  • the response unit 202 ends acceptance of the projector information transmission request and the conference information transmission request.
  • the user I / F unit 201 outputs an acceptance end instruction to the connection destination management unit 203 (step B14).
  • the connection destination management unit 203 ends acceptance of the data transmission permission request and the data reception permission request.
  • the user I / F unit 201 outputs a reception period projection end instruction to the output unit 204 (step B15). In response to this, the output unit 204 ends the projection of information indicating that the request is being accepted.
  • FIG. 13 the same operations as the conference participation operation of the first embodiment shown in FIG. 9 and the conference start operation shown in FIG. The description will be omitted as appropriate.
  • steps B11, B2, B12, and B13 as in FIG. 12 are performed, and the projector 2 'starts accepting each request.
  • steps C1 ⁇ C12 and 9 are performed, from the transmitting terminal 1, in addition to the projector 2 ', also receives the transmitted data to the terminal 3 1, the transmitted data receiving terminal 3 1 Is displayed.
  • step C10 the destination management unit 203, only during the application period, the data receiving permission request is received from the receiving terminal 3 1, transfers the received data received authorization request to the transmitting terminal 1.
  • the projector 2 ′ receives the data transmission permission request and the data reception permission request in addition to the projector information transmission request and the conference information transmission request after the user has input the reception start instruction. Only for a certain period of time.
  • the projector 2 ′ stores the terminal information of the transmitting terminal and the receiving terminal that are frequently transmitted the data transmission permission request and the data reception permission request outside the reception period in the storage unit 208 as the terminal information of the rejection terminal.
  • the data transmission permission request and the data reception permission request from the refusal terminal are not accepted.
  • a fixed period defined by a timer is set as a reception period.
  • the period from the reception start instruction input to the reception period end instruction input is the reception period.
  • the projector system according to the third embodiment of the present invention is different in the operation of the projector 2 'from the first embodiment and the second embodiment.
  • the configuration of the projector 2 ′ of this embodiment is the same as that of the projector 2 ′ of the first embodiment and the second embodiment shown in FIG. 6, but the operation of the setting unit 2012 included in the user I / F unit 201 Is different. Only operations different from those in the first and second embodiments will be described below.
  • the setting unit 2012 sets, as a reception period for each request, a period from when a reception start instruction is input by the user to the operation unit 2011 until a reception period end instruction is input.
  • the reception start instruction input is the same operation as the reception start instruction input of the second embodiment.
  • the reception period end instruction input is an operation in which a response end instruction operation and a reception end instruction operation are combined into one operation. Note that the response end instruction operation and the reception end instruction operation may be performed separately.
  • the setting unit 2012 outputs a response end instruction to the response unit 202 and outputs a reception end instruction to the connection destination management unit 203 when the user inputs a reception period end instruction in the operation unit 2011.
  • the setting unit 2012 outputs a reception period projection end instruction to the output unit 204.
  • the user I / F unit 201 determines whether or not the operation performed by the user is a reception start instruction input (step 1401).
  • the user I / F unit 201 sets a certain period after the reception start instruction input is performed as a reception period of each request, and issues a reception period projection instruction.
  • the data is output to the output unit 204 (step 1402).
  • the user I / F unit 201 outputs a response start instruction to the response unit 202 (step 1003), and outputs a reception start instruction to the connection destination management unit 203 (step 1403).
  • the user I / F unit 201 waits until the user inputs a reception period end instruction (step 1404).
  • the user I / F unit 201 When the user inputs a reception period end instruction, the user I / F unit 201 outputs a response end instruction to the response unit 202 and outputs a reception end instruction to the connection destination management unit 203 (step 1405). Also, the user I / F unit 201 outputs a reception period projection end instruction to the output unit 204 (step 1406).
  • the projector 2 ′ is the period from when the reception start instruction is input by the user until the reception period end instruction is input as the reception period of each request. To do.

Abstract

La présente invention permet de réduire le risque qu'une personne extérieure soit au courant de l'existence et de la teneur d'une conférence, en empêchant, de façon simple et sûre, la personne de participer illégalement à ladite conférence. Le système de projecteur selon l'invention se caractérise en ce qu'il comprend un terminal d'émission, un terminal de réception et un projecteur connecté par l'intermédiaire d'un réseau ; que le terminal d'émission comprend une partie communication de terminal d'émission envoyant une première demande de transmission de données au projecteur ; que le terminal de réception comprend une partie communication de terminal de réception qui envoie une deuxième demande de transmission de données au projecteur ; et que le projecteur comprend une partie exploitation qui reçoit une entrée utilisateur, une partie projection et une partie réglage qui détermine une période de réception de la première et de la deuxième demande, associée à une entrée prédéterminée saisie à un moment donné dans la partie exploitation, et entraîne la projection par la partie projection d'une vidéo montrant que le projecteur se trouve dans la période de réception, lorsque cela est le cas.
PCT/JP2008/070094 2008-11-05 2008-11-05 Systeme de projecteur, projecteur et procede de reception de donnees WO2010052767A1 (fr)

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JP2010536604A JP5234850B2 (ja) 2008-11-05 2008-11-05 プロジェクタシステム、プロジェクタ、およびデータ受け付け方法
PCT/JP2008/070094 WO2010052767A1 (fr) 2008-11-05 2008-11-05 Systeme de projecteur, projecteur et procede de reception de donnees

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CN101479667B (zh) 2006-07-03 2011-12-07 卡尔蔡司Smt有限责任公司 修正/修复光刻投影物镜的方法

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JP2005266777A (ja) * 2004-02-20 2005-09-29 Seiko Epson Corp プレゼンテーション支援装置及びそのプログラム
JP2007288487A (ja) * 2006-04-17 2007-11-01 Ｎｅｃディスプレイソリューションズ株式会社 ネットワークプロジェクタおよびその制御方法
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