JPS58101341A - Computer having crt display - Google Patents

Computer having crt display

Info

Publication number
JPS58101341A
JPS58101341A JP19989281A JP19989281A JPS58101341A JP S58101341 A JPS58101341 A JP S58101341A JP 19989281 A JP19989281 A JP 19989281A JP 19989281 A JP19989281 A JP 19989281A JP S58101341 A JPS58101341 A JP S58101341A
Authority
JP
Japan
Prior art keywords
video
computer
signal
crt
gate
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
JP19989281A
Other languages
Japanese (ja)
Inventor
Hirohide Nakagawa
中川 博英
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP19989281A priority Critical patent/JPS58101341A/en
Publication of JPS58101341A publication Critical patent/JPS58101341A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the visual effect through the use of video information of a video device and to display much information, by displaying video information outputted from the video device and data information of a computer on a CRT through superimposition. CONSTITUTION:An AND gate 16 of a synchronizing signal switching circuit 11 is opened when an internal/external synchronism switching signal goes to an H level and the internal synchronizing signal is inputted to a CRT controller 12 from an OR gate 19. When a synchronism switching signal is an L level, an AND gate 18 is opened and the external synchronism signal is inputted from the OR gate 19 to the CRT controller 12. A video RAM 13 outputs data to a video interface circuit 14 based on an address line from the CRT controller 12. A mixing circuit 15 mixes the data inputted from the circuit 14 with video signals from a video device such as a video tape recorder.

Description

【発明の詳細な説明】 本発明は計算機のデータ情報をCRT(陰極線管)に表
示するCRT表示装置をもつ計算機に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a computer having a CRT display device for displaying computer data information on a CRT (cathode ray tube).

パーソナルコンピュータ等の計算機の表示装置としては
、一般に、テレビジョン受像機等を使用しているが、従
来、上記のような計算機において、ビデオテープレコー
ダやビデオディスク等の映像機器から出力する映像信号
と計痒機のデータ情報とを混合してテレビジョン受像機
に表示させることは行われていなかった。
Generally, a television receiver or the like is used as a display device for a computer such as a personal computer, but in the past, in the above-mentioned computers, video signals output from video equipment such as a video tape recorder or a video disc, etc. The data information from the pruritus meter was not mixed and displayed on the television receiver.

本発明はパーソナルコンピュータ等の計算機における上
記事情に鑑みてなされたものであって、映像機器から出
力する映像情報と計算機のデータ情報とを重ね合わせて
CRTに表示することにより、映像機器の映像情報を利
用して視覚効果を上げるようにしたCRT表示装置をも
つ計算機を提供することを目的としている。
The present invention has been made in view of the above-mentioned circumstances regarding computers such as personal computers, and the present invention provides video information of the video equipment by superimposing video information output from the video equipment and data information of the computer and displaying the same on a CRT. The object of the present invention is to provide a computer equipped with a CRT display device that utilizes the CRT display device to enhance visual effects.

以下、添付図面を参照して本発明を具体的に説明する。Hereinafter, the present invention will be specifically described with reference to the accompanying drawings.

図において、11は同期信号切換回路、12はCRTコ
ントローラ、13はビデオラム、14はビデオインタフ
ェイス回路、15は混合回路である。
In the figure, 11 is a synchronizing signal switching circuit, 12 is a CRT controller, 13 is a video ram, 14 is a video interface circuit, and 15 is a mixing circuit.

、L記同期信号切換回路11は、計算機(図示せず。)
から入力する内部同期信号と、ビデオテープレコーダや
ビデオディスク等の映像機器から入力する外部同期信号
とを、内部/外部同期信号信′号により切り換禾てCR
Tコントローラ12に出力する回路であって、−h配向
部同期信号と内部/外部同期切換信号とが入力するアン
ドゲート161、E記内部/外部同期切換信号を反転す
るインバータ17、該インバータ17の出力と上記外部
同期信号とが入力するアンドゲート181.上記アンド
ゲート16と18の出力が入力するオアゲート19から
なる。
, L synchronization signal switching circuit 11 is a computer (not shown).
The internal/external synchronization signal is used to switch between the internal synchronization signal input from the CR and the external synchronization signal input from video equipment such as a video tape recorder or video disk.
This is a circuit that outputs to the T controller 12, and includes an AND gate 161 to which the -h orientation section synchronization signal and the internal/external synchronization switching signal are input, an inverter 17 that inverts the internal/external synchronization switching signal E, and an inverter 17 of the inverter 17. AND gate 181 to which the output and the external synchronization signal are input. It consists of an OR gate 19 into which the outputs of the AND gates 16 and 18 are input.

上記同期信号切換回路11は、内部/外部同期切換信号
が“H゛レベルと色にアンドゲート16が開いて、オア
ゲート19からCRTコントローラ12に内部同期信号
を人力する一方、上記内部/外部同期切換信号が“L゛
レベルと色にアンドゲート18が開いて、オアゲート1
9からCRTコントローラ12に外部同期信号を入力す
る。
The synchronization signal switching circuit 11 operates such that when the internal/external synchronization switching signal reaches "H" level, the AND gate 16 opens and the internal synchronization signal is inputted from the OR gate 19 to the CRT controller 12. When the signal becomes “L” level and color, AND gate 18 opens and OR gate 1
An external synchronization signal is input from 9 to the CRT controller 12.

E記CRTコントローラー゛2は、同期信号切換回路1
1から入力する内部同期信号もしくは外部同期信号によ
りビデオラム13をアクセスするアドレス線を出力する
回路である。
The CRT controller described in E 2 is a synchronous signal switching circuit 1.
This circuit outputs an address line for accessing the video RAM 13 in response to an internal synchronization signal or an external synchronization signal input from 1.

、上記ビデオラム13はCRT表示装置のCRT(図示
せず。)に表示するデータを蓄積するメモリであって、
上記ビデオラム13は上記アドレス線に基づいてCRT
に表示するデータをビデオインターフェース回路14に
出力している。
, the video RAM 13 is a memory for storing data to be displayed on a CRT (not shown) of a CRT display device,
The video ram 13 is connected to the CRT based on the address line.
Data to be displayed is output to the video interface circuit 14.

、ヒ記ビデオインターフェース回路14は、ビデオラム
13→ら入力する。E駅データをシリアル信号に変換し
て混合回路15に入力している。
The video interface circuit 14 receives input from the video ram 13→. The E station data is converted into a serial signal and input to the mixing circuit 15.

上記混合回路15はビデオインタフェース回路14から
入力する。上記データとビデオテープレコーダ等の映像
機器からの映像信号とを混合する回路であって、同期信
号切換回路11と同様に、内部/外部同期切換信号によ
って制御される。
The mixing circuit 15 receives input from the video interface circuit 14. This circuit mixes the above data with a video signal from a video device such as a video tape recorder, and like the synchronization signal switching circuit 11, it is controlled by an internal/external synchronization switching signal.

計算機を上記構成と“し、例えばビデオテープレコーダ
(図示せず。)から同期信号切換回路11に外部同期信
号を入力し、この外部同期信号によりCRTコントロー
ラ12の同期をとってビデオラム13で計算機により指
令される映像信号をビデオラム13で作成する一方、−
り記ビデオテープレコーダからの映像信号を混合回路1
5に入力すれば、E記混合回路15ではビデオラム13
からの映像信号とビデオテープレコーダからの映像信号
とが合成された新たな表示映像信号が得られる。
With the computer configured as described above, for example, an external synchronizing signal is input from a video tape recorder (not shown) to the synchronizing signal switching circuit 11, the CRT controller 12 is synchronized by this external synchronizing signal, and the video RAM 13 switches the computer. While the video ram 13 creates a video signal commanded by -
Circuit 1 for mixing video signals from a video tape recorder
5, the video ram 13 is input to the mixer circuit 15 described in E.
A new display video signal is obtained by combining the video signal from the video tape recorder and the video signal from the video tape recorder.

従って1.L記表示映像信号を外部のCRTモニタ(図
示せず。)に接続すれば、該CRTモニタには計算機の
表示とビデオテープレコーダの映像とが重ね合わせて表
示されることになり、上記ビデオテープレコーダに予め
適切な映像情報を記録しておけば、計算機の表示の視覚
効果を大巾に向、ヒさせることがで舞る。
Therefore 1. If the display video signal shown in L is connected to an external CRT monitor (not shown), the computer display and video tape recorder video will be displayed superimposed on the CRT monitor. If appropriate video information is recorded on the recorder in advance, the visual effects of the computer display can be greatly enhanced.

この場合、計算機のみの表示と、ビデオテープレコーダ
の映像の重ね合せの表示との切換は、E記内部/外部同
期切換信号により、計算機のプログラムで切換え可能で
ある。
In this case, the display of only the computer and the display of the superimposed image of the video tape recorder can be switched by the computer program using the internal/external synchronization switching signal described in E.

以上、詳細に説明したことからも明らかなように、本発
明は、パーソナルコンピュータ等の計算機にビデオテー
プレコーダ等の映像機器を接続して計算機により指令さ
れる表示信号と映像機器の映像信号とを混合してCRT
に表示させるようにしたから、計算機の出力情報と映像
機器の出力情報とが同時にCRTに表示され、より多く
の情報を表示することかで睡る一方、計算機の出力情報
の視覚効果も向、トさせることがで色る。
As is clear from the above detailed explanation, the present invention connects a video device such as a video tape recorder to a computer such as a personal computer, and outputs a display signal commanded by the computer and a video signal of the video device. Mix and CRT
Since the output information of the computer and the output information of the video equipment are displayed on the CRT at the same time, the visual effect of the output information of the computer is also improved. It changes color by making it look different.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明に係るCRT表示装置をもつ計算機の一実施
例のCRT表示装′置装分のブロック図である。 11・・・同期信号切換回路、12・・・CRTコント
ローラ、13・・・ビデオラム、14・・・ビデオイン
タフェース回路、15・・・混合回路。
The figure is a block diagram of a CRT display device of an embodiment of a computer having a CRT display device according to the present invention. 11... Synchronous signal switching circuit, 12... CRT controller, 13... Video RAM, 14... Video interface circuit, 15... Mixing circuit.

Claims (1)

【特許請求の範囲】 11) CRT表示装置をもつ計算機において、ビデオ
テープレコーダ等の映像機器からの外部の同期信号を計
算機の上記CRT表示装置の同期信号発生回路に入力し
、映像機器の同期信号と同期を取るようにしたことを特
徴とするCRT表示装置をもつ計算機。 (2)上記映像機器から出力する映像信号と計算機のデ
ータ情報とを混合して表示するようにしたことを特徴と
する特許請求の範囲第1項記載のCRT表示装置をもつ
計算機。 (3)上記映像機器の同期信号との同期を計算機のプロ
グラムにより制御するようにしたことを特徴とする特許
請求の範囲第1項記載のCRT表示装置dをもつ計算機
[Scope of Claims] 11) In a computer having a CRT display device, an external synchronization signal from a video device such as a video tape recorder is input to a synchronization signal generation circuit of the CRT display device of the computer, and the synchronization signal of the video device is generated. A computer having a CRT display device, characterized in that it is synchronized with a CRT display device. (2) A computer having a CRT display device according to claim 1, characterized in that a video signal output from the video equipment and data information of the computer are mixed and displayed. (3) A computer having a CRT display device d according to claim 1, wherein synchronization with a synchronization signal of the video equipment is controlled by a computer program.
JP19989281A 1981-12-10 1981-12-10 Computer having crt display Pending JPS58101341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19989281A JPS58101341A (en) 1981-12-10 1981-12-10 Computer having crt display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19989281A JPS58101341A (en) 1981-12-10 1981-12-10 Computer having crt display

Publications (1)

Publication Number Publication Date
JPS58101341A true JPS58101341A (en) 1983-06-16

Family

ID=16415337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19989281A Pending JPS58101341A (en) 1981-12-10 1981-12-10 Computer having crt display

Country Status (1)

Country Link
JP (1) JPS58101341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878117A (en) * 1987-02-14 1989-10-31 Ricoh Company, Ltd. Video signal mixing unit for simultaneously displaying video signals having different picture aspect ratios and resolutions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878117A (en) * 1987-02-14 1989-10-31 Ricoh Company, Ltd. Video signal mixing unit for simultaneously displaying video signals having different picture aspect ratios and resolutions

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