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JPH08297617A - Remote display device for computer - Google Patents

Remote display device for computer

Info

Publication number
JPH08297617A
JPH08297617A JP7102537A JP10253795A JPH08297617A JP H08297617 A JPH08297617 A JP H08297617A JP 7102537 A JP7102537 A JP 7102537A JP 10253795 A JP10253795 A JP 10253795A JP H08297617 A JPH08297617 A JP H08297617A
Authority
JP
Japan
Prior art keywords
computer
display device
drawing command
remote
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7102537A
Other languages
Japanese (ja)
Inventor
Masaaki Nishino
匡昭 西野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Information Service Co Ltd
Original Assignee
NEC Information Service Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Information Service Co Ltd filed Critical NEC Information Service Co Ltd
Priority to JP7102537A priority Critical patent/JPH08297617A/en
Publication of JPH08297617A publication Critical patent/JPH08297617A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Processing Or Creating Images (AREA)
  • Digital Computer Display Output (AREA)
  • Information Transfer Between Computers (AREA)
  • Computer And Data Communications (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE: To decrease delay in the case of displaying an image on a computer at a distant place by reducing the transmission tariff of data in the remote display system of a computer. CONSTITUTION: Only a plotting instruction is extracted from an instruction, which is issued by an application 2 of a computer 1 to perform an operation, and transmitted to a line 6 by a plotting instruction extracting means 3. At a computer 7 at the distant place, a plotting instruction executing means 8 receives the plotting instruction from the line 6 and executes the plotting instruction through an operating system 4 and the same image as an image to be displayed on a display device 5 of the computer 1 to perform the operation is displayed on a display device 5 of the computer 7 at the distant place.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はコンピュータの遠隔表示
装置に関し、特に回線で結ばれた複数のコンピュータの
うち一方のコンピュータの画面に表示された内容を他方
のコンピュータの画面にも表示するコンピュータの遠隔
表示装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote display device for a computer, and more particularly to a computer remote display device for displaying the content displayed on the screen of one of a plurality of computers connected to a line on the screen of the other computer. Remote display device.

【0002】[0002]

【従来の技術】従来、コンピュータの遠隔表示を行うに
あたり、図4のように操作を行うコンピュータ9でアプ
リケーション10がオペレーティングシステム11に描
画命令を実行し、オペレーティングシステム11が画像
データをディスプレイ装置12に表示すると共に、その
画像データを回線13を通して遠隔地のコンピュータ1
4に送信している。遠隔地のコンピュータ14では、オ
ペレーティングシステム11が受信した画像データをデ
ィスプレイ装置12に表示している。
2. Description of the Related Art Conventionally, when remotely displaying a computer, an application 10 executes a drawing command to an operating system 11 in a computer 9 which operates as shown in FIG. 4, and the operating system 11 displays image data on a display device 12. In addition to displaying the image data, the computer 1 at a remote place through the line 13
4 is being sent. In the remote computer 14, the image data received by the operating system 11 is displayed on the display device 12.

【0003】例えば、特開平3−219320公報のよ
うに会議などにおいて出席者が大型ディスプレイに接続
されたコンピュータに対し、回線を通して遠隔操作を行
い、ディスプレイ画面を見ながらディスカッションを行
うことを可能とする、コンピュータ用リモートコントロ
ール装置がある。
For example, as described in Japanese Patent Laid-Open No. 3-219320, it is possible for attendees to remotely operate a computer connected to a large display through a line and hold a discussion while watching the display screen. , There are remote control devices for computers.

【0004】[0004]

【発明が解決しようとする課題】従来のコンピュータの
遠隔表示システムでは、コンピュータからディスプレイ
装置へ出力される画像データを、回線を通して、遠隔地
のコンピュータのディスプレイ装置に、送信していた。
そのため多大なデータが送信され、十分高速な回線速度
の回線を使用していないと、データ伝送における遅延が
発生し、実際に操作しているコンピュータのディスプレ
イ装置に、表示されている画像の内容に対し、遠隔地の
コンピュータのディスプレイ装置に表示される画像の内
容に、遅延が生じてしまう現象が発生していた。
In a conventional computer remote display system, image data output from a computer to a display device is transmitted to a display device of a remote computer through a line.
For this reason, a large amount of data is transmitted, and unless a line with a sufficiently high line speed is used, a delay occurs in data transmission, and the contents of the image displayed on the display device of the computer that is actually operating will change. On the other hand, there has been a phenomenon that a delay occurs in the content of the image displayed on the display device of the computer at the remote place.

【0005】[0005]

【課題を解決するための手段】本発明のコンピュータの
遠隔表示システムは、操作を行うコンピュータには、任
意のアプリケーションと、前記アプリケーションが発行
する命令から描画命令だけを抽出し、回線へ送信する描
画命令抽出手段と、その前記描画命令を実行するオペレ
ーティングシステムとディスプレイ装置とを備えてい
る。更に、遠隔地のコンピュータには操作を行うコンピ
ュータから送信された描画命令を受信し、オペレーティ
ングシステムにその描画命令を実行させる描画命令実行
手段と、操作を行うコンピュータと同一の画像を表示す
るディスプレイ装置を備えて構成される。
According to a remote display system for a computer of the present invention, a computer for operating an arbitrary application and a drawing command for extracting only a drawing command from commands issued by the application are transmitted to a line. An instruction extracting means, an operating system for executing the drawing instruction, and a display device are provided. Further, the remote computer receives a drawing command transmitted from the operating computer and causes the operating system to execute the drawing command, and a display device for displaying the same image as the operating computer. It is configured with.

【0006】[0006]

【実施例】次に本発明について図面を参照して説明す
る。
The present invention will be described below with reference to the drawings.

【0007】図1は本発明の一実施例の構成を示すコン
ピュータの遠隔表示システムのブロック図である。
FIG. 1 is a block diagram of a remote display system for a computer showing the configuration of an embodiment of the present invention.

【0008】図1において操作を行うコンピュータ1
は、アプリケーション2と、描画命令抽出手段3と、オ
ペレーティングシステム4と、ディスプレイ5から構成
される。また遠隔地のコンピュータ7は描画命令実行手
段8と、オペレーティングシステム4Aとディスプレイ
装置5Aから構成される。そして、操作を行うコンピュ
ータ1と遠隔地のコンピュータ7は回線6で接続されて
いる。
A computer 1 which operates in FIG.
Is composed of an application 2, a drawing command extracting means 3, an operating system 4, and a display 5. The computer 7 at a remote location is composed of a drawing command executing means 8, an operating system 4A and a display device 5A. The computer 1 for operating and the computer 7 at a remote place are connected by a line 6.

【0009】図2は図1に示した描画命令抽出手段のフ
ローチャートであり、図3は図1に示した描画命令実行
手段のフローチャートである。
FIG. 2 is a flow chart of the drawing command extracting means shown in FIG. 1, and FIG. 3 is a flow chart of the drawing command executing means shown in FIG.

【0010】まず、操作を行うコンピュータ1での動作
を説明する。
First, the operation of the computer 1 that operates will be described.

【0011】操作を行うコンピュータで動作しているア
プリケーション2の中から任意に発行された命令は、直
接オペレーティングシステムには送られず、描画命令抽
出手段3に送られる。描画命令抽出手段3では、ステッ
プ11でアプリケーションからの命令を読み込む。次に
ステップ12で命令が画面の描画に関する命令かどうか
を判断し、描画命令の場合は、ステップ13へ分岐す
る。ステップ13ではその命令を回線6に送信し、ステ
ップ14へ進む。ステップ14ではオペレーティングシ
ステム4が命令を実行し、ディスプレイ装置5に画像が
表示される。またステップ12で命令が描画命令ではな
い場合は、ステップ13をスキップしてステップ14へ
進みオペレーティングシステム4が命令を実行する。そ
して、描画命令が回線6で遠隔地のコンピュータ7に送
信される。
A command arbitrarily issued from the application 2 running on the computer that operates is not sent directly to the operating system, but is sent to the drawing command extracting means 3. In step 11, the drawing command extraction means 3 reads the command from the application. Next, in step 12, it is judged whether or not the command is a command related to screen drawing. If it is a drawing command, the process branches to step 13. In step 13, the command is transmitted to the line 6, and the process proceeds to step 14. In step 14, the operating system 4 executes the instructions and the image is displayed on the display device 5. If the command is not a drawing command in step 12, step 13 is skipped and the process proceeds to step 14 where the operating system 4 executes the command. Then, the drawing command is transmitted to the remote computer 7 through the line 6.

【0012】次に遠隔地のコンピュータ7での動作を説
明する。
Next, the operation of the computer 7 at a remote place will be described.

【0013】操作を行うコンピュータ1から送信された
描画命令は、遠隔地のコンピュータ7の描画命令実行手
段8で、受信される。描画命令実行手段8では、ステッ
プ21で描画命令を回線6から受信する。ステップ22
へ進み、オペレーティングシステム4Aが描画命令を実
行し、ディスプレイ装置5Aに画像が表示される。この
画像は操作を行うコンピュータ1で表示されている画像
と、同一のものとなる。
The drawing command transmitted from the operating computer 1 is received by the drawing command executing means 8 of the remote computer 7. The drawing command executing means 8 receives the drawing command from the line 6 in step 21. Step 22
Then, the operating system 4A executes the drawing command and the image is displayed on the display device 5A. This image is the same as the image displayed on the computer 1 that operates.

【0014】よって、操作を行うコンピュータ1で、あ
る画像が表示されてから遠隔地のコンピュータ7で同一
の画像が表示される迄の遅延時間は、この画像の描画命
令を回線6で伝送する時間と同一となる。これにより、
従来のように画像データ自体を回線6で伝送する時間に
較べて十分短くなり、回線速度の低速な回線を使用して
リアルタイムに、操作を行うコンピュータ1のディスプ
レイ装置5の表示内容が、遠隔地のコンピュータ7のデ
ィスプレイ装置5に表示される。
Therefore, the delay time from when a certain image is displayed on the operating computer 1 to when the same image is displayed on the remote computer 7 is the time required to transmit a drawing command for this image through the line 6. Is the same as This allows
As compared with the conventional case, the image data itself is sufficiently shorter than the time it takes to transmit on the line 6, and the contents displayed on the display device 5 of the computer 1 that operates in real time using a line with a low line speed are displayed at a remote location. It is displayed on the display device 5 of the computer 7.

【0015】会議の場合の参考使用の展示などには画面
の大きい投与型のディスプレイを使用してその前に半円
型に机・椅子をおき臨場感を高めることも可能である。
It is also possible to use a display of a dosage type having a large screen and put a desk / chair in a semi-circular shape in front of the display for reference use in the case of a conference to enhance the sense of presence.

【0016】[0016]

【発明の効果】以上説明したように本発明は、回線で結
ばれたコンピュータにおいて、一方のコンピュータ上で
動作しているアプリケーションの描画命令を、他方のコ
ンピュータに送信し、それを受信したコンピュータは、
その描画命令をもとにそれぞれのディスプレイ装置に画
像を表示する。これにより、遠隔地のコンピュータに画
像を表示する際、画像データを送信するよりも少量のデ
ータ伝送で行えるようになり、低速な回線でも、遅延を
発生させることなく、遠隔地のコンピュータに画像を表
示させることができるという効果を有する。
As described above, according to the present invention, in a computer connected by a line, a drawing command of an application running on one computer is transmitted to the other computer, and the computer receiving the drawing command ,
An image is displayed on each display device based on the drawing command. As a result, when an image is displayed on a computer at a remote location, it can be transmitted with a smaller amount of data than when transmitting image data, and an image can be displayed on a computer at a remote location without delay even on a low-speed line. It has an effect that it can be displayed.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の構成を示すブロック図FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

【図2】描画命令抽出手段3のフローチャートFIG. 2 is a flowchart of drawing command extraction means 3

【図3】描画命令実行手段8のフローチャートFIG. 3 is a flowchart of a drawing command executing means 8.

【符号の説明】[Explanation of symbols]

1 操作を行うコンピュータ 3 描画命令抽出手段 6 回線 7 遠隔地のコンピュータ 8 描画命令実行手段 1 Computer for performing operation 3 Drawing command extracting means 6 Line 7 Remote computer 8 Drawing command executing means

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 それぞれが遠隔地にある複数のコンピュ
ータが回線で接続されているコンピュータの遠隔表示装
置において、 操作を行う第1のコンピュータには、任意のアプリケー
ションと、前記アプリケーションが発行する命令から描
画命令だけを抽出し回線へ送信する描画命令抽出手段
と、 前記命令を実行するオペレーティングシステムと、ディ
スプレイ装置とを備えると共に、遠隔地の第2のコンピ
ュータには、操作を行う前記第1のコンピュータから送
信された描画命令を受信し、オペレーティングシステム
にその描画命令を実行させる描画命令実行手段と、操作
を行うコンピュータと同一の画像を表示するディスプレ
イ装置とを備えて成ることを特徴とするコンピュータの
遠隔表示装置。
1. A remote display device of a computer in which a plurality of computers, each of which is located in a remote place, are connected by a line, wherein a first computer which operates is provided with an arbitrary application and an instruction issued by the application. The drawing command extracting means for extracting only the drawing command and transmitting the drawing command to the line, the operating system for executing the command, and the display device are provided, and the second computer at a remote place operates for the first computer. A drawing command execution unit that receives a drawing command transmitted from the operating system and causes the operating system to execute the drawing command, and a display device that displays the same image as the computer that performs the operation. Remote display device.
【請求項2】 ディスプレイ装置に投写型ディスプレイ
を採用したことを特徴とする請求項1記載のコンピュー
タの遠隔表示装置。
2. The remote display device for a computer according to claim 1, wherein a projection type display is adopted as the display device.
JP7102537A 1995-04-26 1995-04-26 Remote display device for computer Pending JPH08297617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7102537A JPH08297617A (en) 1995-04-26 1995-04-26 Remote display device for computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7102537A JPH08297617A (en) 1995-04-26 1995-04-26 Remote display device for computer

Publications (1)

Publication Number Publication Date
JPH08297617A true JPH08297617A (en) 1996-11-12

Family

ID=14330032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7102537A Pending JPH08297617A (en) 1995-04-26 1995-04-26 Remote display device for computer

Country Status (1)

Country Link
JP (1) JPH08297617A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003012653A1 (en) * 2001-07-30 2003-02-13 Kernel, Inc. Client screen on-demand creating system
JP2006190255A (en) * 2004-11-18 2006-07-20 Microsoft Corp Multiplexing and separation of graphics stream
JP2007086354A (en) * 2005-09-21 2007-04-05 Toshiba Corp Composite video control apparatus, composite video control method, and program
US7559031B2 (en) 2005-01-24 2009-07-07 Kabushiki Kaisha Toshiba Video display apparatus, video composition delivery apparatus, and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05274240A (en) * 1991-10-28 1993-10-22 Hitachi Ltd Joint information processing system and control method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05274240A (en) * 1991-10-28 1993-10-22 Hitachi Ltd Joint information processing system and control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003012653A1 (en) * 2001-07-30 2003-02-13 Kernel, Inc. Client screen on-demand creating system
JP2006190255A (en) * 2004-11-18 2006-07-20 Microsoft Corp Multiplexing and separation of graphics stream
US7559031B2 (en) 2005-01-24 2009-07-07 Kabushiki Kaisha Toshiba Video display apparatus, video composition delivery apparatus, and system
JP2007086354A (en) * 2005-09-21 2007-04-05 Toshiba Corp Composite video control apparatus, composite video control method, and program
US7974494B2 (en) 2005-09-21 2011-07-05 Kabushiki Kaisha Toshiba Image control from composed composite image using HID signal conversion to source image coordinates

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