WO2017042983A1 - Screen sharing device, screen sharing method, screen sharing system, and program therefor - Google Patents

Screen sharing device, screen sharing method, screen sharing system, and program therefor Download PDF

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Publication number
WO2017042983A1
WO2017042983A1 PCT/JP2015/075942 JP2015075942W WO2017042983A1 WO 2017042983 A1 WO2017042983 A1 WO 2017042983A1 JP 2015075942 W JP2015075942 W JP 2015075942W WO 2017042983 A1 WO2017042983 A1 WO 2017042983A1
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communication terminal
screen
screen sharing
shared area
unit
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PCT/JP2015/075942
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French (fr)
Japanese (ja)
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俊二 菅谷
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株式会社オプティム
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Priority to JP2017538839A priority Critical patent/JPWO2017042983A1/en
Priority to PCT/JP2015/075942 priority patent/WO2017042983A1/en
Publication of WO2017042983A1 publication Critical patent/WO2017042983A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units

Definitions

  • the present invention relates to a screen sharing apparatus, a screen sharing method, a screen sharing system, and a program for sharing a screen displayed between terminals and apparatuses.
  • Patent Document 1 discloses a configuration in which, in screen sharing, access to the server is permitted only for a specific IP address and user authentication is performed to transmit and receive shared screen data only in a specific terminal. (See Patent Document 1).
  • the target of screen sharing is not only the conventional computer terminal but also screen sharing between a portable terminal such as a smartphone and a tablet terminal and the computer terminal, and screen sharing between portable terminals. It has come to be carried out (see Patent Document 2).
  • the screen size differs for each of these terminals, and sharing is performed according to the size of the display unit of the terminal. It is necessary to adjust the screen size. Furthermore, depending on whether the terminal receiving the screen sharing performs vertical display or horizontal display, the screen may be automatically switched to one after the screen sharing, giving the user a sense of discomfort. There is a possibility that The present invention provides a screen sharing apparatus, a screen sharing method, a screen sharing system, and a program for allowing the user to share the screen without discomfort when the size of the display unit between the apparatuses and terminals performing the screen sharing is different. The purpose is to
  • the present invention provides the following solutions.
  • the invention according to the first feature is A screen sharing apparatus communicably connected to one or more communication terminals, comprising a display unit, comprising: A shared area definition unit that defines a part or all of the display unit as a shared area for sharing; A share destination dimension acquiring unit that acquires the vertical width and the horizontal width of the displayable area in the communication terminal; A determination unit that determines whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width; A determination unit that determines whether to display the shared area vertically or horizontally based on the result of the determination; A shared area size changing unit that changes the size of the shared area according to the vertical width and the horizontal width of the communication terminal while maintaining the determination;
  • the screen sharing apparatus communicably connected to one or more communication terminals and including the display unit defines a part or all of the display unit as a sharing area for sharing The vertical width and the horizontal width of the displayable area in the communication terminal are acquired
  • An invention according to a second feature is the invention according to the first feature, and provides a screen sharing apparatus for changing the size of the sharing area to the maximum size of the displayable area of the communication terminal.
  • the invention as set forth in the second feature in the invention as set forth in the first feature, when changing the size of the shared area, the size is changed to the maximum size of the displayable area of the communication terminal.
  • An invention according to a third feature is the invention according to the first feature, and provides a screen sharing device for transmitting user information identifying a user who uses the screen sharing device to the communication terminal.
  • an invention according to a fourth aspect is the communication terminal communicably connected to the screen sharing apparatus according to the first aspect, wherein the screen data reception for receiving the screen data transmitted from the screen sharing apparatus Communication terminal, comprising: a section, and a position adjustment section that changes a button for using the screen sharing or the user information according to the display of the screen data when the screen data is displayed in the displayable area I will provide a.
  • the communication terminal communicably connected to the screen sharing device of the first aspect receives the screen data transmitted from the screen sharing device and displays the screen data.
  • the invention according to the fifth feature is A screen sharing method executed by an apparatus connected communicably to one or more communication terminals and provided with a display unit, Defining a part or all of the display unit as a shared area to be shared; Acquiring the vertical width and the horizontal width of the displayable area in the communication terminal; Determining from the acquired vertical width and horizontal width whether the communication terminal is displaying vertically or horizontally; Determining whether to display the shared area vertically or horizontally based on the result of the determination; Changing the size of the shared area in accordance with the vertical width and the horizontal width of the communication terminal while maintaining the determination;
  • the invention according to the sixth feature is In a screen sharing apparatus communicably connected to one or more communication terminals and provided with a display unit, Defining part or all of the display unit as a shared area to be shared; Acquiring the vertical width
  • the invention according to the seventh feature is A screen sharing system comprising: one or more communication terminals; and a screen sharing apparatus communicably connected to the communication terminals and including a display unit
  • the screen sharing device is A shared area definition unit that defines a part or all of the display unit as a shared area for sharing;
  • a share destination dimension acquiring unit that acquires the vertical width and the horizontal width of the displayable area in the communication terminal;
  • a determination unit that determines whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width;
  • a determination unit that determines whether to display the shared area vertically or horizontally based on the result of the determination;
  • a shared area size changing unit that changes the size of the shared area according to the vertical width and the horizontal width of the communication terminal while maintaining the determination;
  • a screen data transmission unit that transmits the screen data displayed in the changed shared area to the communication terminal;
  • the communication terminal is A screen data receiving unit that receives the screen data transmitted from the screen sharing apparatus; And a terminal display unit that displays the received screen data
  • a screen sharing system comprising: one or more communication terminals; and a screen sharing apparatus communicably connected to the communication terminals and including a display unit.
  • a part or all of the display unit is defined as a shared area to be shared, the vertical width and the horizontal width of the displayable area in the communication terminal are acquired, and the communication terminal performs vertical display from the acquired vertical width and horizontal width It is determined whether the display is horizontal or horizontal, and based on the result of the determination, it is determined whether to display the shared area vertically or horizontally. Then, with the determination maintained, the size of the shared area is changed in accordance with the vertical width and the horizontal width of the communication terminal, and the screen data displayed in the changed shared area is transmitted to the communication terminal.
  • the communication terminal receives the screen data transmitted from the screen sharing apparatus, and displays the received screen data.
  • the display orientation of the communication terminal 100b is maintained even when the sizes of the display units differ between the devices and terminals that perform screen sharing, so that the screen allows the user to share the screen without discomfort. It becomes possible to provide a sharing apparatus, a screen sharing method, a screen sharing system, and a program thereof.
  • FIG. 1 is a system configuration diagram of a screen sharing system 1 according to a preferred embodiment of the present invention.
  • FIG. 2 is a hardware configuration and software functional block diagram of the screen sharing apparatus 100a and the communication terminal 100b.
  • FIG. 3 is a flowchart showing the screen sharing process performed by the screen sharing apparatus 100a and the communication terminal 100b.
  • FIG. 4 is a conceptual view showing that the screen sharing apparatus 100a and the communication terminal 100b share the screen.
  • FIG. 5 is a conceptual view showing that the screen sharing apparatus 100a and the communication terminal 100b share the screen, and is a view showing user information and a button.
  • FIG. 1 is a system configuration diagram of a screen sharing system 1 according to a preferred embodiment of the present invention.
  • the screen sharing system 1 may be the screen sharing apparatus 100a, the communication terminals 100b and 100c, and the communication network 5 (for example, the Internet network, which is a public network, the fourth generation communication network, LTE, etc. LAN (Local Area Network) or a combination of these. Communication of each device using the communication network 5 may be wired or wireless as illustrated.
  • the screen sharing apparatus 100a and the communication terminals 100b and 100c include a computer terminal, a personal computer, a laptop computer, a smartphone, a tablet terminal, a television, a mobile phone, a portable information terminal, an electronic book terminal, a portable music player Audio appliances, content playback / recording players, printers, multifunction machines, unmanned aerial vehicles, robots, information appliances such as cameras with a net function, and the like.
  • the apparatus transmitting the screen data is described as the screen sharing apparatus 100a
  • the apparatus receiving the screen data is described as the communication terminals 100b and 100c (hereinafter simply referred to as the “communication terminal 100b).
  • the screen sharing apparatus 100a is an apparatus that transmits screen data to the communication terminal 100b according to an instruction from a user to share screen data, and includes a control unit 20 that controls image data and information, and other terminals And a storage unit 40 for storing screen data and the like, and a display unit 50 for displaying the screen data.
  • the control unit 20 includes a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), and the like.
  • the communication unit 30 includes a device for enabling communication with another device, for example, a module connected to a communication network to realize communication, a device compatible with WiFi (Wireless Fidelity) compliant with IEEE 802.11, and the like.
  • the storage unit 40 is a device for storing screen data to be displayed on the display unit 50 and user information which is information related to a user who uses the screen sharing device 100a, and includes a hard disk, a semiconductor memory, a recording medium, a memory card, etc.
  • the control unit 20 reads a predetermined program to cooperate with the display unit 50 to determine the sharing area definition module 31 that defines the sharing area and whether to display vertically or horizontally.
  • a determination module 33, an aspect determining module 34 for determining the determined display orientation, and a sharing area size changing module 34 for changing the size of the sharing area are realized.
  • the control unit 20 reads a predetermined program, and in cooperation with the communication unit 30, the sharing destination dimension acquiring module 32 for acquiring the vertical width and the horizontal width of the displayable area of the sharing destination, and the changed screen data Implements a screen data transmission module 35 for transmitting the
  • the communication terminal 100b is a terminal that receives screen data transmitted from the screen sharing device 100a and receives the screen sharing, and similarly to the screen sharing device 100a, a control unit 120 that controls image data and information, and the like.
  • FIG. 3 is a flowchart of the screen sharing process performed by the screen sharing apparatus 100a and the communication terminal 100b.
  • the above-described hardware and the processing executed by the software module will be described together with this processing.
  • the screen sharing apparatus 100a displays a screen on the display unit 50 (step S10).
  • the display unit 50 displays data such as an image, an icon, and a character based on the process from the control unit 20.
  • an application program may be activated to display a window for the application on the display unit 50 on the screen.
  • a screen as shown in the window 500 of FIG. 4 is displayed.
  • the shared area definition module 31 defines a part or all of the screen displayed on the display unit 50 as a shared area to be shared (step S11).
  • a method of this definition there are a method of accepting specification of an area from a user and a method of performing definition without accepting the specification of a user by the screen sharing apparatus 100a.
  • the user may receive the designation of the window displayed in the screen area of the display unit 50, or the user may use a frame such as a rectangular shape (with or without the window) within a predetermined range in the screen area.
  • the range is defined as a shared area.
  • the shared area definition module 31 may define the window of the application program set in advance as the shared area regardless of the user specification, or a predetermined area of the display unit 50 set in advance.
  • the area (position) may be defined as a shared area.
  • a predetermined extension may be set in advance in a file such as a document, a moving image, or a photo, and if a file having the extension is displayed, a process of defining it as a shared area may be performed.
  • the screen sharing apparatus 100a determines the sharing partner (step S12).
  • the determination of the sharing destination may be made by displaying a list of shareable devices or communication terminals 100b on the display unit 50 and accepting specification of the destination from the user, thereby determining the sharing destination, or the destination.
  • the other party may be determined by extracting the communication terminal 100b linked to the user's telephone number, terminal number, e-mail address, user information, etc.
  • the sharing destination dimension acquiring module 32 inquires of the communication terminal 100b the numerical values of the vertical width and the horizontal width of the displayable area of the communication terminal 100b as the destination (step S13). In response to this inquiry, the communication terminal 100b confirms whether or not there is a pre-designation of the vertical width and the horizontal width (step S14).
  • the communication terminal 100b when the communication terminal 100b itself or the user operating the screen sharing is performed, the size of the screen that can share the screen on the display unit 140 of the communication terminal 100b in advance. Therefore, the communication terminal 100b confirms the presence or absence of the screen size designated in advance in this step.
  • the shared area is determined by the maximum vertical width and the horizontal width numerical value of the display unit 140 (step S15: S14 “NO”). That is, the numerical values of the vertical width and the horizontal width of the maximum size of the screen of the display unit 140 of the communication terminal 100b are adopted.
  • the shared area is the entire screen of the display unit 140, and is so-called shared in the full screen display.
  • the vertical width and the horizontal width of the maximum size of the screen may be numerical values of the maximum size of the display portion of the application (browser or the like) to be displayed. Furthermore, it may be the maximum size of the displayable area excluding the width of the frame surrounding the window.
  • the window of the application may not be displayed at the maximum size of the screen of the display unit 140 (other windows may also be displayed), and in this case, the maximum size of the window of the designated application is It may be determined as the vertical width and the horizontal width.
  • the numerical value is determined with the pre-designated vertical width and width of the shared area (step S16: S14 "YES").
  • the communication terminal 100b transmits the determined numeric values of the vertical width and the horizontal width to the screen sharing apparatus 100a (step S17).
  • the sharing destination dimension acquiring module 32 of the screen sharing apparatus 100a acquires the transmitted numerical values of the vertical width and the horizontal width (step S18).
  • the vertical / horizontal determination module 33 determines whether the display unit 140 of the communication terminal 100 b is in the vertical display mode or in the horizontal display based on the acquired values of the vertical width and the horizontal width (step S 19) .
  • the vertical display is the screen direction of the display unit 140 when the width at the top and bottom of the screen is longer than the width at the left and right of the screen.
  • the horizontal display is a direction in which the vertical display is inclined 90 degrees, and is the screen direction of the display unit 140 when the width of the upper and lower sides of the screen is shorter than the width of the left and right sides of the screen.
  • the determination method for example, it is compared whether the vertical width or the horizontal width is a larger number from the numerical values of the vertical width and the horizontal width of the communication terminal 100b. When the vertical width is larger than the horizontal width, vertical display is used. If it is determined that the vertical width is smaller than the horizontal width, it may be determined that the display is horizontal.
  • the communication terminal 100b may store an identifier of the vertical display or horizontal display to be switched, and the screen sharing apparatus 100a may receive the stored identifier.
  • the vertical / horizontal size determination module 34 determines whether to display the shared area vertically or horizontally (step S20). Then, the sharing area size changing module 35 changes the size of the sharing area while maintaining the determination of the display orientation described above (step S21).
  • the screen sharing device 100a compares the previously defined sharing area with the acquired numeric values of the vertical width and the horizontal width, maintains the determined display orientation, and displays Calculate a ratio that is similar to. For example, image data with fixed image resolution will be described.
  • the shared area is assumed to have a width of 10000 dots and a height of 5000 dots, and the numeric values of the vertical width and the horizontal width of the communication terminal 100b are 2500 dots in width and 1250 dots in height. In this case, since the displayable area of the communication terminal 100b is small, it is necessary to reduce and display the shared area. However, the width of the shared area is divided by the width of the communication terminal 100b, and the ratio is 1 ⁇ 4. Become. If the size of the shared area is reduced to one-fourth, the communication terminal 100b can be displayed in a similar manner. Next, the shared area size changing module 34 changes the size of the screen data of the shared area according to the calculated width and width of the display unit (step S21).
  • the screen ratio may be maintained and the size may be changed, and the screen data transmission module 35 changes the size
  • the data is transmitted to the communication terminal 100b (step S22).
  • the data receiving module 135 of the communication terminal 100b receives the transmitted screen data (step S23).
  • the received communication terminal 100 b displays the screen data 510 transmitted from the screen sharing apparatus 100 a.
  • the screen sharing apparatus 100a transmits, together with the screen data, user information for identifying a user who uses the screen sharing apparatus 100a (step S24).
  • the user information may be information that can identify the user such as user ID, user's name, nickname, contact address, telephone number, etc., and the user's attribute (belonging to affiliation, group name, living area), etc. It may contain information.
  • the data receiving module 135 of the communication terminal 100b receives the transmitted user information (step S25).
  • the position adjustment module 142 of the communication terminal 100b displays a button 522 (see FIG. 5) for using screen sharing, and user information 521 (image and name of user's photo or the like) displayed on the display unit 140.
  • the display position is determined (step S26). As shown in FIG.
  • the display position is determined in the range where the display area 140 does not correspond to the common area, as shown in FIG. decide.
  • the communication terminal 100b displays the transmitted screen data 520, the button 522, and the user information 521 at the determined positions (step S27).
  • the button 522 may be an operation icon for starting or stopping screen sharing. Since the display orientation of the communication terminal 100b is maintained when performing screen sharing between the screen sharing apparatus 100a and the communication terminal 100b in the above-described process, it is possible to share the screen without discomfort.
  • the above process may be sequentially performed at the timing when the screen of the screen sharing apparatus 100a is switched (switching of a shared window or changing of a shared area).
  • the above-described means and functions are realized by a computer (including a CPU, an information processing device, and various terminals) reading and executing a predetermined program.
  • the program is provided, for example, in the form of being recorded on a computer readable recording medium such as a flexible disk, a CD (CD-ROM or the like), a DVD (DVD-ROM, DVD-RAM or the like), or Blu-ray.
  • the computer reads the program from the recording medium, transfers the program to an internal storage device or an external storage device, stores it, and executes it.
  • the program may be recorded in advance in a storage device (recording medium) such as a magnetic disk, an optical disk, a magneto-optical disk, a hard disk, or the like, and provided from the storage device to the computer via a communication line.
  • a storage device such as a magnetic disk, an optical disk, a magneto-optical disk, a hard disk, or the like
  • the effects described in the embodiments of the present invention only list the most preferable effects resulting from the present invention, and the effects according to the present invention are limited to those described in the embodiments of the present invention is not.

Abstract

Provided are a screen sharing device, a screen sharing method, a screen sharing system, and a program therefor, which enable screen sharing devices and terminals having different size display units to share a screen in a manner that prevents the screen from looking strange to users. This screen sharing device 100a is communicatively connected to one or more communication terminals 100b and is provided with a display unit, wherein the screen sharing device 100a: defines part or all of the display unit as a shared area; obtains the vertical dimension and the horizontal dimension of the displayable area of one of the one or more communication terminals 100b; determines whether the communication terminal 100b is in portrait display orientation or in landscape display orientation on the basis of the obtained vertical and horizontal dimensions; determines, based on the determined orientation of the communication terminal 100b, whether the shared area is to be displayed in portrait display orientation or in landscape display orientation; and sizes the shared area so as to match the vertical and horizontal dimensions of the communication terminal, assuming that the shared area is displayed in this determined orientation.

Description

画面共有装置、画面共有方法及び、画面共有システム、及びそのプログラムScreen sharing apparatus, screen sharing method, screen sharing system, and program thereof
　本発明は、端末や装置間で表示されている画面の共有を行う画面共有装置、画面共有方法及び、画面共有システム、及びそのプログラムに関する。 The present invention relates to a screen sharing apparatus, a screen sharing method, a screen sharing system, and a program for sharing a screen displayed between terminals and apparatuses.
　近年、インターネット等の公衆回線網を利用し、端末間での画面共有を実行することが行われている。このような画面共有において、画面共有元の端末と画面共有先の端末とは、サーバを中継して、共有画面データを送受信したり、Ｐ２Ｐ型（Ｐｅｅｒ　ＴＯ　Ｐｅｅｒ型）のネットワークにより、端末同士で、直接的に画面データを送受信する。
　このような画面共有における技術としては、共有先への情報漏洩を防止するために、セキュリティ関連の技術が知られている。例えば、特許文献１では、画面共有において、特定のＩＰアドレスについてのみサーバへのアクセスを許可し、ユーザ認証を実行することにより、特定の端末のみにおいて共有画面データを送受信する構成が開示されている（特許文献１参照）。
　また、画面共有の対象が、従来のようなコンピュータ端末のみならず、スマートフォンやタブレット端末等の携帯型端末と、コンピュータ端末との間の画面共有や、携帯型端末同士での画面共有ということが行われるようになってきている（特許文献２参照）。 In recent years, screen sharing between terminals has been performed using a public network such as the Internet. In such screen sharing, the screen sharing source terminal and the screen sharing destination terminal relay the server to transmit and receive shared screen data, or use a P2P type (Peer TO Peer type) network to allow terminals to communicate with each other. Send and receive screen data directly.
As technology in such screen sharing, security related technologies are known in order to prevent information leakage to the sharing destination. For example, Patent Document 1 discloses a configuration in which, in screen sharing, access to the server is permitted only for a specific IP address and user authentication is performed to transmit and receive shared screen data only in a specific terminal. (See Patent Document 1).
Moreover, the target of screen sharing is not only the conventional computer terminal but also screen sharing between a portable terminal such as a smartphone and a tablet terminal and the computer terminal, and screen sharing between portable terminals. It has come to be carried out (see Patent Document 2).
特開２００１−２５６１３７号公報JP 2001-256137 A 特開２０１５−１３８３５２号公報JP, 2015-138352, A
　しかしながら、スマートフォンやタブレット端末等の携帯型端末において、異なる端末で同じ画面を見るといった画面共有を行うとなると、これらの端末それぞれで画面サイズが異なり、端末の表示部の大きさに応じて、共有する画面のサイズの調整が必要となる。さらに、画面共有を受ける側の端末が、縦型表示をしているのか、横型表示をしているかによって、画面共有後に、いずれかに自動で切り替えられてしまう場合があり、ユーザに違和感を与えてしまう場合がある。
　本発明は、画面共有を行う装置や端末間での表示部のサイズが異なる場合に、ユーザが違和感なく、画面を共有できる画面共有装置、画面共有方法及び、画面共有システム、及びそのプログラムを提供することを目的とする。 However, when performing screen sharing such as viewing the same screen on different terminals in portable terminals such as smartphones and tablet terminals, the screen size differs for each of these terminals, and sharing is performed according to the size of the display unit of the terminal. It is necessary to adjust the screen size. Furthermore, depending on whether the terminal receiving the screen sharing performs vertical display or horizontal display, the screen may be automatically switched to one after the screen sharing, giving the user a sense of discomfort. There is a possibility that
The present invention provides a screen sharing apparatus, a screen sharing method, a screen sharing system, and a program for allowing the user to share the screen without discomfort when the size of the display unit between the apparatuses and terminals performing the screen sharing is different. The purpose is to
　本発明では、以下のような解決手段を提供する。
　第１の特徴に係る発明は、
　一以上の通信端末と通信可能に接続され、表示部を備えた画面共有装置であって、
　前記表示部の一部または全部を、共有を行う共有領域として定義する共有領域定義部と、
　前記通信端末における表示可能領域の縦幅および横幅を取得する共有先寸法取得部と、
　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定する判定部と、
　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定する決定部と、
　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更する共有領域サイズ変更部と、
　を備えることを特徴とする画面共有装置を提供する。
　第１の特徴に係る発明によれば、一以上の通信端末と通信可能に接続され、表示部を備えた画面共有装置は、表示部の一部または全部を、共有を行う共有領域として定義し、通信端末における表示可能領域の縦幅および横幅を取得し、取得した縦幅および横幅から、通信端末が縦型表示しているか横型表示しているかを判定し、判定の結果に基づいて、共有領域を縦型表示するのか横型表示するのかを決定する。そして、この決定を維持したまま、通信端末の縦幅および横幅に合わせて共有領域のサイズを変更する。
　第２の特徴に係る発明は、第１の特徴に係る発明であって、共有領域のサイズを変更する際に、通信端末の表示可能領域の最大のサイズに変更する画面共有装置を提供する。
　第２の特徴に係る発明によれば、第１の特徴に係る発明であって、さらに、共有領域のサイズを変更する際に、通信端末の表示可能領域の最大のサイズに変更する。
　第３の特徴に係る発明は、第１の特徴に係る発明であって、当該画面共有装置を使用するユーザを識別するユーザ情報を前記通信端末に送信する画面共有装置を提供する。
　第３の特徴に係る発明によれば、第１の特徴に係る発明であって、さらに、当該画面共有装置を使用するユーザを識別するユーザ情報を前記通信端末に送信する。
　第４の特徴に係る発明は、第１の特徴に係る発明の画面共有装置と通信可能に接続された前記通信端末であって、前記画面共有装置から送信された画面データを受信する画面データ受信部と、前記画面データを表示可能領域に表示する際に、当該画面共有を使用するためのボタン又は前記ユーザ情報を、当該画面データの表示に合わせて変更する位置調整部と、を備える通信端末を提供する。
　第４の特徴に係る発明によれば、第１の特徴に係る発明の画面共有装置と通信可能に接続された通信端末は、画面共有装置から送信された画面データを受信し、画面データを表示可能領域に表示する際に、当該画面共有を使用するためのボタン又はユーザ情報を、当該画面データの表示に合わせて変更する。
　第５の特徴に係る発明は、
　一以上の通信端末と通信可能に接続され、表示部を備えた装置が実行する画面共有方法であって、
　前記表示部の一部または全部を、共有を行う共有領域として定義するステップと、
　前記通信端末における表示可能領域の縦幅および横幅を取得するステップと、
　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定するステップと、
　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定するステップと、
　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更するステップと、
　を備えることを特徴とする画面共有方法を提供する。
　第６の特徴に係る発明は、
　一以上の通信端末と通信可能に接続され、表示部を備えた画面共有装置に、
　前記表示部の一部または全部を、共有を行う共有領域として定義するステップ、
　前記通信端末における表示可能領域の縦幅および横幅を取得するステップ、
　前記定義された共有領域を、前記取得した縦幅および横幅と比較し、所定の比率を算出するステップ、
　前記比率を維持したまま、前記表示部の縦幅および横幅に合わせて前記共有領域のサイズを変更するステップ、
　前記変更した共有領域に表示された画面データを、前記通信端末に送信するステップ、
　を実行するためのプログラムを提供する。
　第７の特徴に係る発明は、
　一以上の通信端末と、当該通信端末と通信可能に接続され、表示部を備えた画面共有装置と、からなる画面共有システムであって、
　前記画面共有装置は、
　前記表示部の一部または全部を、共有を行う共有領域として定義する共有領域定義部と、
　前記通信端末における表示可能領域の縦幅および横幅を取得する共有先寸法取得部と、
　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定する判定部と、
　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定する決定部と、
　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更する共有領域サイズ変更部と、
　前記変更した共有領域に表示された画面データを、前記通信端末に送信する画面データ送信部と、を備え、
　前記通信端末は、
　前記画面共有装置から送信された画面データを受信する画面データ受信部と、
　受信した前記画面データを表示する端末表示部と、を備えたことを特徴とする画面共有システムを提供する。
　第７の特徴に係る発明によれば、一以上の通信端末と、当該通信端末と通信可能に接続され、表示部を備えた画面共有装置と、からなる画面共有システムにおいて、画面共有装置は、表示部の一部または全部を、共有を行う共有領域として定義し、通信端末における表示可能領域の縦幅および横幅を取得し、取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定し、判定の結果に基づいて、共有領域を縦型表示するのか横型表示するのかを決定する。そして、決定を維持したまま、通信端末の縦幅および横幅に合わせて共有領域のサイズを変更し、変更した共有領域に表示された画面データを、前記通信端末に送信する。一方、通信端末は、画面共有装置から送信された画面データを受信し、受信した画面データを表示する。
　本発明によれば、画面共有を行う装置や端末間での表示部のサイズが異なる場合であっても、通信端末１００ｂの表示向きが維持されるため、ユーザが違和感なく、画面を共有できる画面共有装置、画面共有方法及び、画面共有システム、及びそのプログラムを提供することが可能となる。 The present invention provides the following solutions.
The invention according to the first feature is
A screen sharing apparatus communicably connected to one or more communication terminals, comprising a display unit, comprising:
A shared area definition unit that defines a part or all of the display unit as a shared area for sharing;
A share destination dimension acquiring unit that acquires the vertical width and the horizontal width of the displayable area in the communication terminal;
A determination unit that determines whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width;
A determination unit that determines whether to display the shared area vertically or horizontally based on the result of the determination;
A shared area size changing unit that changes the size of the shared area according to the vertical width and the horizontal width of the communication terminal while maintaining the determination;
To provide a screen sharing apparatus characterized by comprising:
According to the invention of the first aspect, the screen sharing apparatus communicably connected to one or more communication terminals and including the display unit defines a part or all of the display unit as a sharing area for sharing The vertical width and the horizontal width of the displayable area in the communication terminal are acquired, and it is determined from the acquired vertical width and the horizontal width whether the communication terminal is displaying vertically or horizontally, and sharing is performed based on the result of the determination. Determines whether the area is displayed vertically or horizontally. Then, while maintaining this determination, the size of the shared area is changed in accordance with the vertical width and the horizontal width of the communication terminal.
An invention according to a second feature is the invention according to the first feature, and provides a screen sharing apparatus for changing the size of the sharing area to the maximum size of the displayable area of the communication terminal.
According to the invention as set forth in the second feature, in the invention as set forth in the first feature, when changing the size of the shared area, the size is changed to the maximum size of the displayable area of the communication terminal.
An invention according to a third feature is the invention according to the first feature, and provides a screen sharing device for transmitting user information identifying a user who uses the screen sharing device to the communication terminal.
According to the third aspect of the present invention, in the first aspect, user information for identifying a user who uses the screen sharing apparatus is further transmitted to the communication terminal.
An invention according to a fourth aspect is the communication terminal communicably connected to the screen sharing apparatus according to the first aspect, wherein the screen data reception for receiving the screen data transmitted from the screen sharing apparatus Communication terminal, comprising: a section, and a position adjustment section that changes a button for using the screen sharing or the user information according to the display of the screen data when the screen data is displayed in the displayable area I will provide a.
According to the fourth aspect of the present invention, the communication terminal communicably connected to the screen sharing device of the first aspect receives the screen data transmitted from the screen sharing device and displays the screen data. When displaying in the available area, the button or user information for using the screen sharing is changed in accordance with the display of the screen data.
The invention according to the fifth feature is
A screen sharing method executed by an apparatus connected communicably to one or more communication terminals and provided with a display unit,
Defining a part or all of the display unit as a shared area to be shared;
Acquiring the vertical width and the horizontal width of the displayable area in the communication terminal;
Determining from the acquired vertical width and horizontal width whether the communication terminal is displaying vertically or horizontally;
Determining whether to display the shared area vertically or horizontally based on the result of the determination;
Changing the size of the shared area in accordance with the vertical width and the horizontal width of the communication terminal while maintaining the determination;
To provide a screen sharing method characterized by comprising:
The invention according to the sixth feature is
In a screen sharing apparatus communicably connected to one or more communication terminals and provided with a display unit,
Defining part or all of the display unit as a shared area to be shared;
Acquiring the vertical width and the horizontal width of the displayable area in the communication terminal;
Comparing the defined shared area with the acquired vertical width and horizontal width to calculate a predetermined ratio;
Changing the size of the shared area according to the vertical width and the horizontal width of the display unit while maintaining the ratio;
Transmitting screen data displayed in the changed shared area to the communication terminal;
Provide a program to execute.
The invention according to the seventh feature is
A screen sharing system comprising: one or more communication terminals; and a screen sharing apparatus communicably connected to the communication terminals and including a display unit,
The screen sharing device is
A shared area definition unit that defines a part or all of the display unit as a shared area for sharing;
A share destination dimension acquiring unit that acquires the vertical width and the horizontal width of the displayable area in the communication terminal;
A determination unit that determines whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width;
A determination unit that determines whether to display the shared area vertically or horizontally based on the result of the determination;
A shared area size changing unit that changes the size of the shared area according to the vertical width and the horizontal width of the communication terminal while maintaining the determination;
A screen data transmission unit that transmits the screen data displayed in the changed shared area to the communication terminal;
The communication terminal is
A screen data receiving unit that receives the screen data transmitted from the screen sharing apparatus;
And a terminal display unit that displays the received screen data.
According to the seventh aspect of the present invention, there is provided a screen sharing system comprising: one or more communication terminals; and a screen sharing apparatus communicably connected to the communication terminals and including a display unit. A part or all of the display unit is defined as a shared area to be shared, the vertical width and the horizontal width of the displayable area in the communication terminal are acquired, and the communication terminal performs vertical display from the acquired vertical width and horizontal width It is determined whether the display is horizontal or horizontal, and based on the result of the determination, it is determined whether to display the shared area vertically or horizontally. Then, with the determination maintained, the size of the shared area is changed in accordance with the vertical width and the horizontal width of the communication terminal, and the screen data displayed in the changed shared area is transmitted to the communication terminal. On the other hand, the communication terminal receives the screen data transmitted from the screen sharing apparatus, and displays the received screen data.
According to the present invention, the display orientation of the communication terminal 100b is maintained even when the sizes of the display units differ between the devices and terminals that perform screen sharing, so that the screen allows the user to share the screen without discomfort. It becomes possible to provide a sharing apparatus, a screen sharing method, a screen sharing system, and a program thereof.
　図１は、本発明の好適な実施例である画面共有システム１のシステム構成図である。
　図２は、画面共有装置１００ａ及び通信端末１００ｂのハードウェア構成とソフトウェア機能ブロック図である。
　図３は、画面共有装置１００ａ及び通信端末１００ｂが実行する画面共有処理を示すフローチャートである。
　図４は、画面共有装置１００ａ及び通信端末１００ｂが画面共有したことを示す概念図である。
　図５は、画面共有装置１００ａ及び通信端末１００ｂが画面共有したことを示す概念図であって、ユーザ情報とボタンを表示した図である。 FIG. 1 is a system configuration diagram of a screen sharing system 1 according to a preferred embodiment of the present invention.
FIG. 2 is a hardware configuration and software functional block diagram of the screen sharing apparatus 100a and the communication terminal 100b.
FIG. 3 is a flowchart showing the screen sharing process performed by the screen sharing apparatus 100a and the communication terminal 100b.
FIG. 4 is a conceptual view showing that the screen sharing apparatus 100a and the communication terminal 100b share the screen.
FIG. 5 is a conceptual view showing that the screen sharing apparatus 100a and the communication terminal 100b share the screen, and is a view showing user information and a button.
　以下、本発明を実施するための最良の形態について図を参照しながら説明する。なお、これはあくまでも一例であって、本発明の技術的範囲はこれに限られるものではない。
　［画面共有システムの構成］
　図１は、本発明の好適な実施形態である画面共有システム１のシステム構成図である。画面共有システム１は、画面共有装置１００ａ、通信端末１００ｂ、１００ｃ、通信回線網５（例えば、公衆回線網であるインターネット網や第４世代通信網、ＬＴＥなどであってよいし、専用通信回線やＬＡＮ（Ｌｏｃａｌ　Ａｒｅａ　Ｎｅｔｗｏｒｋ）又はこれらの組合せであってよい。）から構成される。通信回線網５を利用した各装置の通信は、図示したように有線であっても無線であってもよい。
　画面共有装置１００ａと通信端末１００ｂ、１００ｃは、ハードウェアとしては、いずれも、コンピュータ端末、パソコン、ノートパソコン、スマートフォン、タブレット端末、テレビ、携帯電話、携帯情報端末、電子書籍端末、携帯型音楽プレーヤ、オーディオコンポ、コンテンツ再生・録画プレーヤ、プリンタ、複合機、無人航空機、ロボット、ネット機能を備えるカメラ等の情報電化製品を含む。以下では、説明の便宜上、画面データを送信する側の装置を画面共有装置１００ａとして、画面データを受信する側を通信端末１００ｂ、１００ｃ（以下では単に「通信端末１００ｂ）とする）として説明する。
　［画面共有装置１００ａ、通信端末１００ｂの構成］
　図３は、画面共有装置１００ａと通信端末１００ｂのハードウェア構成とソフトウェア機能を説明するためのブロック図である。
　画面共有装置１００ａは、ユーザからの指示に応じて画面データを通信端末１００ｂに送信して、画面データの共有を行う装置であって、画像データや情報の制御を行う制御部２０、他の端末との通信を行う通信部３０、画面データ等を記憶する記憶部４０、画面データを表示する表示部５０を少なくとも備える。
　制御部２０は、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）等を備える。通信部３０は、他の機器と通信可能にするためのデバイス、例えば、通信回線網に接続して通信実現するモジュールや、ＩＥＥＥ８０２．１１に準拠したＷｉＦｉ（Ｗｉｒｅｌｅｓｓ　Ｆｉｄｅｌｉｔｙ）対応デバイス等を備える。記憶部４０は、表示部５０に表示する画面データや、画面共有装置１００ａを使用するユーザに関連した情報であるユーザ情報を記憶する装置であって、ハードディスクや半導体メモリ、記録媒体、メモリカード等によるデータのストレージ部を備える。
　画面共有装置１００ａにおいて、制御部２０が所定のプログラムを読み込むことで、表示部５０と協働して、共有領域を定義する共有領域定義モジュール３１と、縦型表示か横型表示かを判定する縦横判定モジュール３３と、判定した表示向きに決定する縦横決定モジュール３４と、共有領域のサイズを変更する共有領域サイズ変更モジュール３４を実現する。また、制御部２０が所定のプログラムを読み込むことで、通信部３０と協働して、共有先の表示可能領域の縦幅および横幅を取得する共有先寸法取得モジュール３２と、変更された画面データを送信する画面データ送信モジュール３５を実現する。
　通信端末１００ｂは、画面共有装置１００ａから送信された画面データを受信して、画面共有を受ける端末であって、画面共有装置１００ａと同様に、画像データや情報の制御を行う制御部１２０、他の装置や端末との通信を行う通信部１３０、画面データ等を記憶する記憶部（図示せず）、画面データを表示する表示部１４０を少なくとも備える。
　［画面共有処理］
　図３は、画面共有装置１００ａと通信端末１００ｂが実行する画面共有処理のフローチャートである。上述した各ハードウェアと、ソフトウェアモジュールが実行する処理について、本処理に併せて説明する。
　はじめに、画面共有装置１００ａは、表示部５０に画面を表示する（ステップＳ１０）。例えば、画面共有装置１００ａのＯＳ（オペレーティングシステム）を起動することで、表示部５０は、制御部２０からの処理に基づき、画像やアイコン、文字等のデータを表示する。また、アプリケーション・プログラムを起動して、当該アプリケーションのためのウィンドウを表示部５０に画面表示してもよい。例えば、図４のウィンドウ５００に示すような画面を表示する。
　次に、共有領域定義モジュール３１が、表示部５０に画面表示された一部又は全部を、共有を行う共有領域として定義する（ステップＳ１１）。この定義の方法としては、ユーザから領域の指定を受け付ける方法と、画面共有装置１００ａがユーザの指定を受け付けずに定義を行う方法がある。前者は、ユーザが表示部５０の画面領域内に表示されたウィンドウの指定を受け付けてもよいし、ユーザが画面領域内の所定の範囲を（ウィンドウの有無にかかわらず）矩形状等の枠で囲うことで、その範囲を共有領域として定義する。
　後者の方法としては、ユーザの指定にかかわらず、共有領域定義モジュール３１が、予め設定されたアプリケーション・プログラムのウィンドウを共有領域として定義してもよいし、予め設定された表示部５０の所定の領域（位置）を共有領域として定義してもよい。また、文書、動画や写真などのファイルで、所定の拡張子を事前に設定しておき、その拡張子を持つファイルが表示されていれば、共有領域として定義する処理を行ってもよい。
　次に、画面共有装置１００ａは、共有相手先を決定する（ステップＳ１２）。共有相手先の決定は、共有可能な装置や通信端末１００ｂが一覧で表示部５０に表示され、ユーザからの相手先の指定を受け付けることで、共有相手先を決定してもよいし、相手先となるユーザの電話番号、端末番号、メールアドレス、ユーザ情報等に紐付けられた通信端末１００ｂを抽出して、相手先を決定してもよい。
　そして、共有相手先を決定したら、共有先寸法取得モジュール３２が、相手先となる通信端末１００ｂの表示可能領域の縦幅、横幅の数値を通信端末１００ｂに問い合わせる（ステップＳ１３）。この問い合わせを受けて、通信端末１００ｂは、縦幅・横幅の事前指定があるか確認する（ステップＳ１４）。ここで、事前指定とは、通信端末１００ｂ自身又は操作するユーザが画面共有を実行する際に、通信端末１００ｂの表示部１４０で画面共有可能な画面のサイズを事前に指定することである。したがって、通信端末１００ｂは、事前に指定した画面のサイズの有無を本ステップで確認する。
　ここで、事前指定がない場合は、共有領域を、表示部１４０の最大の縦幅と横幅の数値で決定する（ステップＳ１５：Ｓ１４「ＮＯ」）。すなわち、通信端末１００ｂの表示部１４０の画面の最大サイズの縦幅と横幅の数値を採用する。この場合は、共有領域が、表示部１４０の全画面となり、所謂、全画面表示での共有となる。
　なお、画面の最大サイズの縦幅と横幅は、表示するウィンドウ用のアプリケーション（ブラウザ等）の表示部分の最大サイズの数値であってもよい。さらに、ウィンドウを囲む枠の幅等を排除した表示可能領域の最大サイズであってよい。ここで、表示部１４０の画面の最大サイズにアプリケーションのウィンドウが表示されない（他のウィンドウも表示されている）場合であってもよく、この場合は、指定されたアプリケーションのウィンドウの最大サイズが、縦幅と横幅の数値として決定されてよい。
　一方、通信端末１００ｂに事前指定がある場合は、共有領域を事前指定された縦幅・横幅で数値を決定する（ステップＳ１６：Ｓ１４「ＹＥＳ」）。ここで、例えば、画面共有する際のアプリケーション・プログラムが通信端末１００ｂで予め決定されており、そのアプリケーション・プログラムが定めるウィンドウの縦幅・横幅の数値が決定されていれば、その数値を事前指定された数値として決定する。
　そして、通信端末１００ｂは、決定された縦幅と横幅の数値を画面共有装置１００ａに送信する（ステップＳ１７）。これを受けて、画面共有装置１００ａの共有先寸法取得モジュール３２は、送信された縦幅、横幅の数値を取得する（ステップＳ１８）。
　次に、縦横判定モジュール３３は、取得した縦幅、横幅の数値から、通信端末１００ｂの表示部１４０が画面を縦型表示しているか、横型表示をしているかの判定を行う（ステップＳ１９）。ここで、縦型表示とは、画面の上下の幅が画面の左右の幅よりも長い場合の表示部１４０の画面方向である。逆に、横型表示とは、縦型表示を９０度傾かせた方向であって、画面の上下の幅が画面の左右の幅よりも短い場合の表示部１４０の画面方向である。この判定方法としては、例えば、通信端末１００ｂの縦幅、横幅の数値から、縦幅と横幅のどちらが大きい数値であるかを比較し、縦幅が横幅よりも大きい場合は、縦型表示であると判定し、縦幅が横幅よりも小さい場合は、横型表示であると判定してよい。また、ユーザが画面を縦型表示、横型表示に切り替える毎に、切り替わる縦型表示、横型表示の識別子を通信端末１００ｂが記憶し、これを画面共有装置１００ａが受信して判断してもよい。
　縦横決定モジュール３４は、上記の判定に応じて、共有領域を縦型表示するか、横型表示するかを決定する（ステップＳ２０）。そして、共有領域サイズ変更モジュール３５が、上記の表示向きの決定を維持しながら、共有領域のサイズを変更する（ステップＳ２１）。
　具体的なサイズの変更方法としては、画面共有装置１００ａは、先に定義された共有領域と、取得した縦幅、横幅の数値を比較して、決定した表示向きを維持して、表示した際に相似形となるような比率を算出する。例えば、画像解像度を固定した画像データで説明する。共有領域が、横幅：１００００ドット、縦幅：５０００ドットとして、通信端末１００ｂの縦幅・横幅の数値が、横幅：２５００ドット、縦幅：１２５０ドットとする。この場合は、通信端末１００ｂの表示可能領域が小さいため、共有領域を縮小して表示する必要があるが、共有領域の横幅を通信端末１００ｂの横幅で割って、比率は、４分の１となる。共有領域を４分の１の大きさにすれば、通信端末１００ｂに相似形で表示することが可能となる。
　次に、共有領域サイズ変更モジュール３４は、算出された比率で表示部の縦幅、横幅に合わせた共有領域の画面データのサイズを変更する（ステップＳ２１）。画面データのサイズの変更は、縮小する場合は、画像解像度を粗くすることで、画面の比率を維持して、サイズを変更してよい、そして、画面データ送信モジュール３５が、サイズを変更した画面データを通信端末１００ｂに送信する（ステップＳ２２）。通信端末１００ｂのデータ受信モジュール１３５は、送信された画面データを受信する（ステップＳ２３）。図４に示すように、画面共有装置１００ａから送信した画面データ５１０を、受信した通信端末１００ｂが表示する。
　加えて、画面共有装置１００ａは、画面データとともに、画面共有装置１００ａを使用するユーザを識別するためのユーザ情報を送信する（ステップＳ２４）。ここでの、ユーザ情報とは、ユーザＩＤ、ユーザの名前、ニックネーム、連絡先、電話番号等のユーザを識別できる情報であってよく、ユーザの属性（所属先、グループ名、生活地域）等の情報を含んでいてよい。通信端末１００ｂのデータ受信モジュール１３５は、送信されたユーザ情報を受信する（ステップＳ２５）。
　次に、通信端末１００ｂの位置調整モジュール１４２は、表示部１４０に表示する、画面共有を使用するためのボタン５２２（図５参照）と、ユーザ情報５２１（ユーザの写真などの画像と名前）の表示位置を決定する（ステップＳ２６）。表示位置の決定方法は、図５に示すように、共有領域を所定の比率で表示部１４０に表示した際に、表示部１４０で共有領域に該当しない範囲に、ボタンとユーザ情報の配置場所を決定する。この場合は、算出した比率でサイズを変更することで横幅よりも縦幅にスペースができるため、その位置を配置場所と決定する。そして、通信端末１００ｂは、送信された画面データ５２０と、ボタン５２２とユーザ情報５２１を決定された位置に表示する（ステップＳ２７）。ここで、ボタン５２２とは、画面共有を開始したり、停止するための操作アイコンであってよい。
　上述の処理で、画面共有装置１００ａと通信端末１００ｂ間で、画面共有を行うにあたり、通信端末１００ｂの表示向きが維持されるため、違和感のない画面共有を可能となる。なお、上記の処理は、画面共有装置１００ａの画面の切替（共有するウィンドウの切替や共有する領域の変更）が行われたタイミングで、逐次、処理が行われてよい。
　上述した手段、機能は、コンピュータ（ＣＰＵ、情報処理装置、各種端末を含む）が、所定のプログラムを読み込んで、実行することによって実現される。プログラムは、例えば、フレキシブルディスク、ＣＤ（ＣＤ−ＲＯＭなど）、ＤＶＤ（ＤＶＤ−ＲＯＭ、ＤＶＤ−ＲＡＭなど）、ブルーレイ等のコンピュータ読取可能な記録媒体に記録された形態で提供される。この場合、コンピュータはその記録媒体からプログラムを読み取って内部記憶装置又は外部記憶装置に転送し記憶して実行する。また、そのプログラムを、例えば、磁気ディスク、光ディスク、光磁気ディスク、ハードディスク等の記憶装置（記録媒体）に予め記録しておき、その記憶装置から通信回線を介してコンピュータに提供するようにしてもよい。
　以上、本発明の実施形態について説明したが、本発明は上述したこれらの実施形態に限るものではない。また、本発明の実施形態に記載された効果は、本発明から生じる最も好適な効果を列挙したに過ぎず、本発明による効果は、本発明の実施形態に記載されたものに限定されるものではない。 Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. This is merely an example, and the technical scope of the present invention is not limited to this.
[Configuration of screen sharing system]
FIG. 1 is a system configuration diagram of a screen sharing system 1 according to a preferred embodiment of the present invention. The screen sharing system 1 may be the screen sharing apparatus 100a, the communication terminals 100b and 100c, and the communication network 5 (for example, the Internet network, which is a public network, the fourth generation communication network, LTE, etc. LAN (Local Area Network) or a combination of these. Communication of each device using the communication network 5 may be wired or wireless as illustrated.
The screen sharing apparatus 100a and the communication terminals 100b and 100c, as hardware, include a computer terminal, a personal computer, a laptop computer, a smartphone, a tablet terminal, a television, a mobile phone, a portable information terminal, an electronic book terminal, a portable music player Audio appliances, content playback / recording players, printers, multifunction machines, unmanned aerial vehicles, robots, information appliances such as cameras with a net function, and the like. In the following, for convenience of explanation, the apparatus transmitting the screen data is described as the screen sharing apparatus 100a, and the apparatus receiving the screen data is described as the communication terminals 100b and 100c (hereinafter simply referred to as the “communication terminal 100b).
[Configuration of Screen Sharing Device 100a, Communication Terminal 100b]
FIG. 3 is a block diagram for explaining the hardware configurations and software functions of the screen sharing apparatus 100a and the communication terminal 100b.
The screen sharing apparatus 100a is an apparatus that transmits screen data to the communication terminal 100b according to an instruction from a user to share screen data, and includes a control unit 20 that controls image data and information, and other terminals And a storage unit 40 for storing screen data and the like, and a display unit 50 for displaying the screen data.
The control unit 20 includes a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), and the like. The communication unit 30 includes a device for enabling communication with another device, for example, a module connected to a communication network to realize communication, a device compatible with WiFi (Wireless Fidelity) compliant with IEEE 802.11, and the like. The storage unit 40 is a device for storing screen data to be displayed on the display unit 50 and user information which is information related to a user who uses the screen sharing device 100a, and includes a hard disk, a semiconductor memory, a recording medium, a memory card, etc. Data storage unit according to
In the screen sharing apparatus 100a, the control unit 20 reads a predetermined program to cooperate with the display unit 50 to determine the sharing area definition module 31 that defines the sharing area and whether to display vertically or horizontally. A determination module 33, an aspect determining module 34 for determining the determined display orientation, and a sharing area size changing module 34 for changing the size of the sharing area are realized. In addition, the control unit 20 reads a predetermined program, and in cooperation with the communication unit 30, the sharing destination dimension acquiring module 32 for acquiring the vertical width and the horizontal width of the displayable area of the sharing destination, and the changed screen data Implements a screen data transmission module 35 for transmitting the
The communication terminal 100b is a terminal that receives screen data transmitted from the screen sharing device 100a and receives the screen sharing, and similarly to the screen sharing device 100a, a control unit 120 that controls image data and information, and the like. A communication unit 130 for communicating with the device or the terminal, a storage unit (not shown) for storing screen data and the like, and a display unit 140 for displaying the screen data.
[Screen sharing process]
FIG. 3 is a flowchart of the screen sharing process performed by the screen sharing apparatus 100a and the communication terminal 100b. The above-described hardware and the processing executed by the software module will be described together with this processing.
First, the screen sharing apparatus 100a displays a screen on the display unit 50 (step S10). For example, by activating an OS (Operating System) of the screen sharing apparatus 100a, the display unit 50 displays data such as an image, an icon, and a character based on the process from the control unit 20. Alternatively, an application program may be activated to display a window for the application on the display unit 50 on the screen. For example, a screen as shown in the window 500 of FIG. 4 is displayed.
Next, the shared area definition module 31 defines a part or all of the screen displayed on the display unit 50 as a shared area to be shared (step S11). As a method of this definition, there are a method of accepting specification of an area from a user and a method of performing definition without accepting the specification of a user by the screen sharing apparatus 100a. In the former, the user may receive the designation of the window displayed in the screen area of the display unit 50, or the user may use a frame such as a rectangular shape (with or without the window) within a predetermined range in the screen area. By enclosing, the range is defined as a shared area.
As the latter method, the shared area definition module 31 may define the window of the application program set in advance as the shared area regardless of the user specification, or a predetermined area of the display unit 50 set in advance. The area (position) may be defined as a shared area. In addition, a predetermined extension may be set in advance in a file such as a document, a moving image, or a photo, and if a file having the extension is displayed, a process of defining it as a shared area may be performed.
Next, the screen sharing apparatus 100a determines the sharing partner (step S12). The determination of the sharing destination may be made by displaying a list of shareable devices or communication terminals 100b on the display unit 50 and accepting specification of the destination from the user, thereby determining the sharing destination, or the destination. The other party may be determined by extracting the communication terminal 100b linked to the user's telephone number, terminal number, e-mail address, user information, etc.
Then, when the sharing destination is determined, the sharing destination dimension acquiring module 32 inquires of the communication terminal 100b the numerical values of the vertical width and the horizontal width of the displayable area of the communication terminal 100b as the destination (step S13). In response to this inquiry, the communication terminal 100b confirms whether or not there is a pre-designation of the vertical width and the horizontal width (step S14). Here, prior specification is to specify in advance, when the communication terminal 100b itself or the user operating the screen sharing is performed, the size of the screen that can share the screen on the display unit 140 of the communication terminal 100b in advance. Therefore, the communication terminal 100b confirms the presence or absence of the screen size designated in advance in this step.
Here, when there is no pre-designation, the shared area is determined by the maximum vertical width and the horizontal width numerical value of the display unit 140 (step S15: S14 “NO”). That is, the numerical values of the vertical width and the horizontal width of the maximum size of the screen of the display unit 140 of the communication terminal 100b are adopted. In this case, the shared area is the entire screen of the display unit 140, and is so-called shared in the full screen display.
Note that the vertical width and the horizontal width of the maximum size of the screen may be numerical values of the maximum size of the display portion of the application (browser or the like) to be displayed. Furthermore, it may be the maximum size of the displayable area excluding the width of the frame surrounding the window. Here, the window of the application may not be displayed at the maximum size of the screen of the display unit 140 (other windows may also be displayed), and in this case, the maximum size of the window of the designated application is It may be determined as the vertical width and the horizontal width.
On the other hand, when the communication terminal 100b is pre-designated, the numerical value is determined with the pre-designated vertical width and width of the shared area (step S16: S14 "YES"). Here, for example, if the application program for screen sharing is determined in advance by the communication terminal 100b, and the numerical value of the vertical width and the horizontal width of the window defined by the application program is determined, the numerical value is prespecified. It will be determined as the
Then, the communication terminal 100b transmits the determined numeric values of the vertical width and the horizontal width to the screen sharing apparatus 100a (step S17). In response to this, the sharing destination dimension acquiring module 32 of the screen sharing apparatus 100a acquires the transmitted numerical values of the vertical width and the horizontal width (step S18).
Next, the vertical / horizontal determination module 33 determines whether the display unit 140 of the communication terminal 100 b is in the vertical display mode or in the horizontal display based on the acquired values of the vertical width and the horizontal width (step S 19) . Here, the vertical display is the screen direction of the display unit 140 when the width at the top and bottom of the screen is longer than the width at the left and right of the screen. Conversely, the horizontal display is a direction in which the vertical display is inclined 90 degrees, and is the screen direction of the display unit 140 when the width of the upper and lower sides of the screen is shorter than the width of the left and right sides of the screen. As the determination method, for example, it is compared whether the vertical width or the horizontal width is a larger number from the numerical values of the vertical width and the horizontal width of the communication terminal 100b. When the vertical width is larger than the horizontal width, vertical display is used. If it is determined that the vertical width is smaller than the horizontal width, it may be determined that the display is horizontal. Also, each time the user switches the screen to vertical display or horizontal display, the communication terminal 100b may store an identifier of the vertical display or horizontal display to be switched, and the screen sharing apparatus 100a may receive the stored identifier.
In accordance with the above determination, the vertical / horizontal size determination module 34 determines whether to display the shared area vertically or horizontally (step S20). Then, the sharing area size changing module 35 changes the size of the sharing area while maintaining the determination of the display orientation described above (step S21).
As a specific method of changing the size, when the screen sharing device 100a compares the previously defined sharing area with the acquired numeric values of the vertical width and the horizontal width, maintains the determined display orientation, and displays Calculate a ratio that is similar to. For example, image data with fixed image resolution will be described. The shared area is assumed to have a width of 10000 dots and a height of 5000 dots, and the numeric values of the vertical width and the horizontal width of the communication terminal 100b are 2500 dots in width and 1250 dots in height. In this case, since the displayable area of the communication terminal 100b is small, it is necessary to reduce and display the shared area. However, the width of the shared area is divided by the width of the communication terminal 100b, and the ratio is 1⁄4. Become. If the size of the shared area is reduced to one-fourth, the communication terminal 100b can be displayed in a similar manner.
Next, the shared area size changing module 34 changes the size of the screen data of the shared area according to the calculated width and width of the display unit (step S21). When reducing the size of the screen data, by reducing the image resolution, the screen ratio may be maintained and the size may be changed, and the screen data transmission module 35 changes the size The data is transmitted to the communication terminal 100b (step S22). The data receiving module 135 of the communication terminal 100b receives the transmitted screen data (step S23). As shown in FIG. 4, the received communication terminal 100 b displays the screen data 510 transmitted from the screen sharing apparatus 100 a.
In addition, the screen sharing apparatus 100a transmits, together with the screen data, user information for identifying a user who uses the screen sharing apparatus 100a (step S24). Here, the user information may be information that can identify the user such as user ID, user's name, nickname, contact address, telephone number, etc., and the user's attribute (belonging to affiliation, group name, living area), etc. It may contain information. The data receiving module 135 of the communication terminal 100b receives the transmitted user information (step S25).
Next, the position adjustment module 142 of the communication terminal 100b displays a button 522 (see FIG. 5) for using screen sharing, and user information 521 (image and name of user's photo or the like) displayed on the display unit 140. The display position is determined (step S26). As shown in FIG. 5, when the display area is displayed on the display unit 140 at a predetermined ratio, the display position is determined in the range where the display area 140 does not correspond to the common area, as shown in FIG. decide. In this case, by changing the size according to the calculated ratio, a space can be made in the vertical width rather than the horizontal width, so that position is determined as the arrangement position. Then, the communication terminal 100b displays the transmitted screen data 520, the button 522, and the user information 521 at the determined positions (step S27). Here, the button 522 may be an operation icon for starting or stopping screen sharing.
Since the display orientation of the communication terminal 100b is maintained when performing screen sharing between the screen sharing apparatus 100a and the communication terminal 100b in the above-described process, it is possible to share the screen without discomfort. The above process may be sequentially performed at the timing when the screen of the screen sharing apparatus 100a is switched (switching of a shared window or changing of a shared area).
The above-described means and functions are realized by a computer (including a CPU, an information processing device, and various terminals) reading and executing a predetermined program. The program is provided, for example, in the form of being recorded on a computer readable recording medium such as a flexible disk, a CD (CD-ROM or the like), a DVD (DVD-ROM, DVD-RAM or the like), or Blu-ray. In this case, the computer reads the program from the recording medium, transfers the program to an internal storage device or an external storage device, stores it, and executes it. Alternatively, the program may be recorded in advance in a storage device (recording medium) such as a magnetic disk, an optical disk, a magneto-optical disk, a hard disk, or the like, and provided from the storage device to the computer via a communication line. Good.
As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment mentioned above. Further, the effects described in the embodiments of the present invention only list the most preferable effects resulting from the present invention, and the effects according to the present invention are limited to those described in the embodiments of the present invention is not.
　１　画面共有システム、１００ａ　画面共有装置、１００ｂ　通信端末 1 screen sharing system, 100a screen sharing device, 100b communication terminal

Claims (7)

  1. 　一以上の通信端末と通信可能に接続され、表示部を備えた画面共有装置であって、
    　前記表示部の一部または全部を、共有を行う共有領域として定義する共有領域定義部と、
    　前記通信端末における表示可能領域の縦幅および横幅を取得する共有先寸法取得部と、
    　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定する判定部と、
    　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定する決定部と、
    　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更する共有領域サイズ変更部と、
    　を備えることを特徴とする画面共有装置。     A screen sharing apparatus communicably connected to one or more communication terminals, comprising a display unit, comprising:
    A shared area definition unit that defines a part or all of the display unit as a shared area for sharing;
    A share destination dimension acquiring unit that acquires the vertical width and the horizontal width of the displayable area in the communication terminal;
    A determination unit that determines whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width;
    A determination unit that determines whether to display the shared area vertically or horizontally based on the result of the determination;
    A shared area size changing unit that changes the size of the shared area according to the vertical width and the horizontal width of the communication terminal while maintaining the determination;
    A screen sharing apparatus comprising:
  2. 　前記共有領域サイズ変更部は、前記共有領域のサイズを変更する際に、前記通信端末の表示可能領域の最大のサイズに変更する請求項１に記載の画面共有装置。 The screen sharing apparatus according to claim 1, wherein the shared area size changing unit changes the size of the shared area to the maximum size of the displayable area of the communication terminal when changing the size of the shared area.
  3. 　当該画面共有装置を使用するユーザを識別するユーザ情報を前記通信端末に送信する請求項１に記載の画面共有装置。 The screen sharing apparatus according to claim 1, wherein user information identifying a user who uses the screen sharing apparatus is transmitted to the communication terminal.
  4. 　請求項１に記載の画面共有装置と通信可能に接続された前記通信端末であって、
    　前記画面共有装置から送信された画面データを受信する画面データ受信部と、
    　前記画面データを表示可能領域に表示する際に、当該画面共有を使用するためのボタン又は前記ユーザ情報を、当該画面データの表示に合わせて変更する位置調整部と、を備える通信端末。     The communication terminal communicably connected to the screen sharing apparatus according to claim 1, wherein
    A screen data receiving unit that receives the screen data transmitted from the screen sharing apparatus;
    A communication terminal, comprising: a position adjustment unit that changes a button for using the screen sharing or the user information according to the display of the screen data when the screen data is displayed in the displayable area.
  5. 　一以上の通信端末と通信可能に接続され、表示部を備えた装置が実行する画面共有方法であって、
    　前記表示部の一部または全部を、共有を行う共有領域として定義するステップと、
    　前記通信端末における表示可能領域の縦幅および横幅を取得するステップと、
    　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定するステップと、
    　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定するステップと、
    　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更するステップと、
    　を備えることを特徴とする画面共有方法。     A screen sharing method executed by an apparatus connected communicably to one or more communication terminals and provided with a display unit,
    Defining a part or all of the display unit as a shared area to be shared;
    Acquiring the vertical width and the horizontal width of the displayable area in the communication terminal;
    Determining from the acquired vertical width and horizontal width whether the communication terminal is displaying vertically or horizontally;
    Determining whether to display the shared area vertically or horizontally based on the result of the determination;
    Changing the size of the shared area in accordance with the vertical width and the horizontal width of the communication terminal while maintaining the determination;
    A screen sharing method comprising:
  6. 　一以上の通信端末と通信可能に接続され、表示部を備えた画面共有装置に、
    　前記表示部の一部または全部を、共有を行う共有領域として定義するステップ、
    　前記通信端末における表示可能領域の縦幅および横幅を取得するステップ、
    　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定するステップ、
    　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定するステップ、
    　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更するステップ、
    　を実行するためのプログラム。     In a screen sharing apparatus communicably connected to one or more communication terminals and provided with a display unit,
    Defining part or all of the display unit as a shared area to be shared;
    Acquiring the vertical width and the horizontal width of the displayable area in the communication terminal;
    Determining whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width;
    Determining whether to display the shared area vertically or horizontally based on the result of the determination;
    Changing the size of the shared area in accordance with the vertical width and the horizontal width of the communication terminal while maintaining the determination;
    A program to run.
  7. 　一以上の通信端末と、当該通信端末と通信可能に接続され、表示部を備えた画面共有装置と、からなる画面共有システムであって、
    　前記画面共有装置は、
    　前記表示部の一部または全部を、共有を行う共有領域として定義する共有領域定義部と、
    　前記通信端末における表示可能領域の縦幅および横幅を取得する共有先寸法取得部と、
    　前記取得した縦幅および横幅から、前記通信端末が縦型表示しているか横型表示しているかを判定する判定部と、
    　前記判定の結果に基づいて、前記共有領域を縦型表示するのか横型表示するのかを決定する決定部と、
    　前記決定を維持したまま、前記通信端末の縦幅および横幅に合わせて前記共有領域のサイズを変更する共有領域サイズ変更部と、
    　前記変更した共有領域に表示された画面データを、前記通信端末に送信する画面データ送信部と、を備え、
    　前記通信端末は、
    　前記画面共有装置から送信された画面データを受信する画面データ受信部と、
    　受信した前記画面データを表示する端末表示部と、を備えたことを特徴とする画面共有システム。     A screen sharing system comprising: one or more communication terminals; and a screen sharing apparatus communicably connected to the communication terminals and including a display unit,
    The screen sharing device is
    A shared area definition unit that defines a part or all of the display unit as a shared area for sharing;
    A share destination dimension acquiring unit that acquires the vertical width and the horizontal width of the displayable area in the communication terminal;
    A determination unit that determines whether the communication terminal is displaying vertically or horizontally from the acquired vertical width and horizontal width;
    A determination unit that determines whether to display the shared area vertically or horizontally based on the result of the determination;
    A shared area size changing unit that changes the size of the shared area according to the vertical width and the horizontal width of the communication terminal while maintaining the determination;
    A screen data transmission unit that transmits the screen data displayed in the changed shared area to the communication terminal;
    The communication terminal is
    A screen data receiving unit that receives the screen data transmitted from the screen sharing apparatus;
    And a terminal display unit for displaying the received screen data.
PCT/JP2015/075942 2015-09-07 2015-09-07 Screen sharing device, screen sharing method, screen sharing system, and program therefor WO2017042983A1 (en)

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