JP2011060000A - Screen sharing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a content related to confidential information and personal information on a screen invisible at the side to be shared before sharing a screen. <P>SOLUTION: In a screen sharing method for transmitting the screen display information of a computer device via a communication line to indicate the screen display information on a terminal device at the reception side, the computer device includes a means recognizing information displayed on the screen before transferring the screen display information, a means distinguishing transmission-prohibited information among information displayed on the screen recognized by the recognition means, and a means performing processing to prevent the transmission of information which is distinguished as the transmission-prohibited information by the means distinguishing the transmission-prohibition information. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a screen sharing method in which screen information of a computer device is transmitted to another terminal device, and the received terminal device displays the screen information on a display device.

  With the development of the Internet, screen sharing technology has been developed that allows you to share a graphical screen from a remote location and operate a personal computer.

  Examples of the products include pcANYWHERE (trade name) manufactured by SYMANTEC and DeskTop On-Call (registered trademark) manufactured by IFO.

  Patent proposals relating to screen sharing include Japanese Patent Laid-Open Nos. 9-2331044 and 2004-164267.

  In Japanese Patent Laid-Open No. 9-233104, a screen on a desktop is divided into an effective screen area and an invalid screen area and a screen image is transmitted only in the effective screen area, thereby reducing the communication band and increasing the frequency of screen updates. Has been made. In this case, the invalid area is assumed to be a desktop wallpaper.

  In Japanese Patent Laid-Open No. 2004-164267, when a single personal computer is simultaneously accessed from a plurality of personal computers, the remote operation right of the plurality of personal computers can be set for each application to improve security. .

Japanese Patent Laid-Open No. 9-233104 JP 2004-164267 A

  However, in the above-described conventional example, emphasis is placed on operating a computer in a remote place, and little consideration is given to showing a third party the screen of the computer owned by the third party.

  For example, if you want to use a file on your own PC in a meeting room for a meeting, start the screen sharing application on the PC in the meeting room and show the PC screens you own in your home and office to the meeting participants. Or use screen sharing.

  In this case, for example, when an important confidential file or a very private file that is not desired to be shown to a third party is opened, if the screen is inadvertently shared, an unexpected failure may occur.

  Also, if you do not want to know what icons are on the PC desktop, for example, if there are game icons or icons related to private information, the user's resistance to showing such information through screen sharing is great. .

  In the present invention, in order to solve such a problem, on the side to be shared at the time of screen sharing, before the sharing, those that are registered privately are subjected to termination processing or iconification processing before sharing. In addition, it is intended to render a desktop icon that has been registered privately in advance and make the icon invisible when the screen is shared.

In order to solve the above-described problem, a screen sharing method according to the present invention includes:
In a screen sharing method for transmitting screen display information of a computer device via a communication line and displaying the screen display information on a terminal device on the receiving side,
Means for recognizing information displayed on the screen before the computer device transfers screen display information; means for recognizing non-transmittable information from information displayed on the screen recognized by the recognition means; And means for performing processing to prevent transmission of the information identified as impossible to transmit by the means for identifying the transmission disabled information.

  According to the present invention, when the screen is shared, the activated application and icon are made invisible so that the user does not inadvertently disclose confidential information or private information on the personal computer owned by the user to a third party. There is an effect that.

The system block diagram in this Embodiment. FIG. 11 is a block diagram illustrating a structure of a display device 102 in this embodiment. The figure which shows the hardware constitutions of the computer apparatus 101 in this Embodiment. FIG. 2 is a block diagram illustrating a configuration of a computer main body 301 in this embodiment. The figure which shows the application information table in this Embodiment. The figure which shows the icon information table in this Embodiment. It is the figure which showed the operation example of the screen sharing system in this Embodiment. 8 is a flowchart showing screen sharing operation of the display apparatus according to the present embodiment. The flowchart which shows the processing operation | movement with respect to the application under starting of the computer apparatus 101 in this Embodiment. The flowchart which shows the processing operation | movement with respect to the icon on the screen of the computer apparatus 101 in this Embodiment.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram showing an overall configuration of a screen sharing system according to an embodiment of the present invention.

  In the figure, a computer device 101 has a communication function and is connected to a network 103 represented by the Internet or the like. The display device 102 also has a communication function therein and is connected to the network 103. In this embodiment, the display device is described as a dedicated terminal device, but a computer device may be used.

  FIG. 2 is a diagram illustrating an internal configuration of the display device 102. The display device 102 operates according to screen sharing system display program data. Specifically, a CPU 201, a ROM 202, a RAM 203, a network I / F 206, an input device I / F 207, a display I / F 208, a keyboard 209, a mouse 210, a display 211, and a bus 212 are provided and connected to the network 103.

  The CPU 201 performs processing instructed by the screen sharing system display program data in addition to the control of the entire display device.

  A ROM (Read Only Memory) 202 is a read-only memory. The ROM 202 includes a PROM (Programmable ROM) in which a user can electrically write a program and a mask ROM in which contents are written at the time of manufacture. However, any ROM may be used in this embodiment. The ROM 202 stores a screen sharing system display program.

  A RAM (Random Access Memory) 203 is a memory that can be freely written and read. The RAM 203 has a function of temporarily storing data when performing the processing of the present embodiment.

  The network interface 206 processes communication control for connecting to a network such as the Internet or an intranet, but various communication interfaces are applied depending on the user environment. When connecting directly to the access network, it is composed of various modems and terminal adapters, and when connecting to an ADSL modem or cable modem of an external device, it is composed of an Ethernet interface.

  The input device I / F 207 processes input from the keyboard 209, mouse 210, and the like included in the display device 102, and is used for operation of the display device. However, other input devices such as a remote controller and a digitizer are used. It doesn't matter.

  A display I / F 208 and a display 211 are display units, which are controlled by a CRT, a liquid crystal display, a plasma display, a SED (Surface-Condition Electron-Emitter Display, “SED” is a registered trademark), a front projector or a rear projection television and its control circuit. Composed. The operation status of the display device is displayed on a part of the display.

  The system bus 212 exchanges various data between the blocks in the display device and supplies power. The system bus 212 includes address lines, data lines, control lines, power / ground lines, and the like.

  FIG. 3 is a diagram showing a configuration of the computer terminal apparatus 101 in the present embodiment.

  A main component device constituting the computer apparatus is a computer main body 301. In addition, the display 304, the keyboard 303, the mouse 302, and the like are connected to input / output terminals corresponding to each device provided in the computer main body 301, respectively.

  FIG. 4 is a diagram showing an internal configuration of the computer main unit 301 of the computer apparatus 101 used as the screen information transmission side of the screen sharing system.

  The computer main body 301 is operated by a screen sharing system computer program. Specifically, the CPU 401, ROM 402, RAM 403, internal storage device 404, external storage device 405, network I / F 406, input device I / F 407, display I / F 408, keyboard 303, mouse 302, display 304, and system bus 411 are provided. And is connected to the network 103.

  The CPU 401 performs processing instructed by the screen sharing system computer program data in addition to the control of the entire personal computer.

  A ROM (Read Only Memory) 402 is a read-only memory. The ROM 402 includes a PROM (Programmable ROM) in which a user can write a program electrically and a mask ROM in which contents are written at the time of manufacture. However, any ROM may be used in this embodiment.

  A RAM (Random Access Memory) 403 is a memory that can be freely written and read. The RAM 403 has a function of temporarily storing data when performing the processing of the present embodiment.

  The internal storage device 404 is a device for storing information in the terminal device. An example of the internal storage device is a hard disk. 404 stores the program data for the screen sharing system computer and stores data necessary for the operation of the program data for the screen sharing system computer.

  The external storage device 405 reads and writes information on a medium separate from the computer device. Examples of the external storage device 405 include an FD drive, an MO drive, a CD-RW drive, and a DVD-RW drive.

  The network interface 406 processes communication control for connecting to a network such as the Internet or an intranet. Various communication interfaces are applied according to the user environment. When connecting directly to the access network, it is composed of various modems and terminal adapters, and when connecting to an ADSL modem or cable modem of an external device, it is composed of an Ethernet interface.

  The input device I / F 407 processes input from the keyboard 303, the mouse 302, and the like provided in the terminal device 102, and is used for operating the computer device.

  The display I / F 408 and the display 304 are display units, and include a CRT, a liquid crystal display, a plasma display, a surface-conduction electron-emitter display (SED), a front projector or a rear projection television, and a control circuit thereof. The operation status of the terminal device is displayed on a part of the display device.

  The system bus 411 exchanges various data between blocks in the computer device and supplies power. The bus 411 includes an address line, a data line, a control line, a power supply / ground line, and the like.

  FIG. 5 shows a part of the application information table stored in the computer apparatus 101 of FIG. 1, and describes only a part necessary for the description of the present embodiment. In the figure, an ID of F501 is a unique ID for identifying an application, and F502 represents an application name. F503 indicates whether the application can be disclosed, that is, whether the application itself can be displayed on the screen when the screen is shared.

  FIG. 6 is a part of the icon information table stored in the computer apparatus 101 of FIG. 1, and describes only the parts necessary for the description of the present embodiment. In the figure, ID F601 is a unique ID for identifying an icon, and F602 represents an icon name. F603 indicates whether the icon can be disclosed, that is, whether the icon can be displayed on the screen when the screen is shared.

  FIG. 7 is a diagram showing an operation example in the screen sharing system of the present embodiment.

  FIG. 7A shows an example in which an application registered as a private application is terminated when screen sharing is performed.

  FIG. 7B shows an example in which when a screen is shared, an application registered as a private application is iconified while being activated.

  FIG. 7C shows an example in which an icon registered as a non-public icon is painted out when the screen is shared so as not to know what it is.

  FIG. 8 is an example of a flowchart showing the screen sharing operation of the display apparatus 102 in the screen sharing system of the present embodiment.

  First, when starting in step S801, the process proceeds to step S802.

  In step S802, it is determined whether there is a screen sharing instruction from the user on the display device 102 side. If there is an instruction, the process proceeds to step S803.

  In step S803, a screen sharing instruction is transmitted to the computer apparatus 101 via the network 103, and the process advances to step S804.

  If screen data from the computer apparatus is received via the network 103 in step S804, the process proceeds to step S805.

  In step S805, the screen data received in step S804 is displayed on the display 211, and the process proceeds to step S806.

  In step S806, it is determined whether there is a screen sharing end instruction from the user on the display device 102 side. If there is an instruction, the process proceeds to step S807 and ends.

  If there is no screen sharing instruction from the user on the display device 102 side in step S802, the process proceeds to step S802.

  If screen data from the computer apparatus is not received in step S804, the process proceeds to step S806.

  If there is no screen sharing end instruction from the user on the display apparatus 102 side in step S806, the process proceeds to step S804.

  The above is the screen sharing operation of the display device 102.

[First Embodiment]
FIG. 9 is an example of a flowchart showing the processing operation for the running application of the computer apparatus 101 in the screen sharing system of the present embodiment.

  First, when starting in step S901, the process proceeds to step S902.

  In step S902, it is determined whether there is a screen sharing instruction from the display apparatus 102. If there is an instruction, the process proceeds to step S903.

  In step S903, it is determined whether there is an application running on the computer apparatus 101. If there is a running application, the process advances to step S904.

  In step S904, all application information displayed on the display in the running application is acquired, and the process proceeds to step S905.

  In step S905, one piece of application information is extracted from the acquired application information, and the process proceeds to step S906.

  In step S906, it is determined based on the application information table of FIG. 5 whether or not the extracted application information is a private application. If it is a private application, the process proceeds to step S907.

  In step S907, it is determined whether the private application is to be terminated or iconified. The determination condition is based on information described in a computer setting file in advance. As a result of the determination, if the private application is terminated, the process proceeds to step S908.

  In step S908, the private application is terminated. In this case, the display on the display device 102 is as shown in FIG. When the application is terminated, the process proceeds to step S909.

  In step S909, the presence / absence of application information that has not been subjected to the determination process in step S906 is determined from the application information acquired in step S904. If there is no application information, the process proceeds to step S910.

  In step S910, the image information displayed on the display 304 of the computer apparatus 101 is captured as image data. Any kind of image compression processing may be added when the image data is taken in. The captured image data is transmitted to the display device 102, and the process proceeds to step S911.

  In step S911, it is determined whether or not there is an end instruction from the display device 102. If there is an instruction, the process proceeds to step S912 and ends.

  In step S902, if there is no screen sharing instruction, the process proceeds to step S902.

  If there is no active application in step S903, the process proceeds to step S910.

  If it is determined in step S906 that the application is not a private application, the process proceeds to step S909.

  If it is determined in step S907 that the private application is not terminated, the process proceeds to step S913.

  In step S913, iconization processing of a private application is performed. In this case, the display on the display device 102 is as shown in FIG. When the iconization process ends, the process proceeds to step S909.

  If there is application information that has not been subjected to the determination process in step S909, the process proceeds to step S905.

  In step S911, if there is no end instruction, the process proceeds to step S910.

  The above is the processing operation for the running application of the computer apparatus 101 in the screen sharing system.

  In the first embodiment described above, an application that is running at the time of screen sharing can be terminated or iconified based on pre-registration information. As a result, the presentation application can be displayed as it is, and the game application can be made invisible, leading to an improvement in user convenience.

[Second Embodiment]
In the first embodiment, processing is performed on a running application. On the other hand, processing for an icon displayed on the screen will be described as a second embodiment.

  FIG. 10 is an example of a flowchart showing processing operations for icons on the screen of the computer apparatus 101 in the screen sharing system of the present embodiment.

First, when starting in step S1001, the process proceeds to step S1002.
In step S1002, it is determined whether there is a screen sharing instruction from the display device 102. If there is an instruction, the process proceeds to step S1003.

  In step S1003, it is determined whether or not there is an icon displayed on the desktop of the computer apparatus 101. If there is a displayed icon, the process proceeds to step S1004.

  In step S1004, all icon information displayed on the desktop is acquired, and the process advances to step S1005.

  In step S1005, one piece of icon information is extracted from the acquired icon information, and the process advances to step S1006.

  In step S1006, it is determined based on the icon information table of FIG. 6 whether or not the extracted icon information is a private icon. If it is a private icon, the process proceeds to step S1007.

  In step S1007, a drawing process is performed on the private icon. This drawing process is to perform a drawing process with a specific color on a rectangular area surrounding an icon and an icon name. In this case, the display on the display device 102 is as shown in FIG. After performing the drawing process, the process proceeds to step S1008.

  In step S1008, it is determined whether or not there is icon information that has not been subjected to the determination process in step S1006 from the icon information acquired in step S1004. If there is no icon information, the process proceeds to step S1009.

  In step S1009, the image information displayed on the display 304 of the computer apparatus 101 is captured as image data. Any kind of image compression processing may be added when the image data is taken in. The captured image data is transmitted to the display device 102, and the process proceeds to step S1010.

  In step S1010, it is determined whether or not there is an end instruction from the display device 102. If there is an instruction, the process proceeds to step S1011 and ends.

  If there is no screen sharing instruction in step S1002, the process proceeds to step S1002.

  If no icon is displayed in step S1003, the process proceeds to step S1009.

  If it is determined in step S1006 that the icon is not a private icon, the process proceeds to step S1008.

  In step S1008, if there is application information that has not been subjected to the determination process, the process proceeds to step S1005.

  In step S1010, if there is no end instruction, the process proceeds to step S1009.

  The above is the processing operation for the icon displayed on the computer apparatus 101 in the screen sharing system.

  In the second embodiment described above, the icons can be made invisible based on the pre-registration information for the icons on the desktop when the screen is shared. As a result, it is possible to make the business icons in the same state, and to make the highly entertaining icons and the icons with strong privateness invisible, leading to improvement of user convenience.

101 Computer Device 102 Display Device 103 Network 201 CPU
202 ROM
203 RAM
206 Network I / F
207 Input device I / F
208 Display I / F
209 Keyboard 210 Mouse 211 Display 301 Computer main body 302 Mouse 303 Keyboard 304 Display 401 CPU
402 ROM
403 RAM
404 Internal storage device 405 External storage device 406 Network I / F
407 Input device I / F
408 Display I / F

Claims (7)

In a screen sharing method for transmitting screen display information of a computer device via a communication line and displaying the screen display information on a terminal device on the receiving side,
Means for recognizing information displayed on the screen before the computer device transfers screen display information; means for recognizing non-transmittable information from information displayed on the screen recognized by the recognition means; A screen sharing method comprising: means for performing processing for preventing transmission of information identified as impossible to transmit by means for identifying the transmission disabled information. In claim 1,
A screen sharing method comprising means for ending an application running on a computer as means for performing processing for preventing transmission of information identified as being impossible to transmit. In claim 2,
A screen sharing method comprising: means for determining whether to end based on end permission information registered in advance to end the active application; and means for ending the application based on the determination of whether to end. In claim 1,
A screen sharing method comprising: means for converting an application running on a computer into an icon as a means for performing processing for preventing transmission of information identified as non-transmittable. In claim 4,
A screen sharing method comprising: means for determining whether or not to make an icon based on pre-registered iconification availability information for iconifying the running application; and means for converting to an icon based on the determination of whether or not iconification is possible . In claim 1,
A screen sharing method comprising: means for drawing another image information on an icon displayed on a display screen of a computer as means for performing processing for preventing transmission of information identified as unusable. In claim 6,
Means for determining whether or not to draw on the icon based on icon drawing availability information registered in advance for drawing other image information on the icon; and means for drawing on the icon based on the determination of whether or not to draw the icon Screen sharing method.

Images