JPS59148468A - Video reproducing device - Google Patents
Video reproducing deviceInfo
- Publication number
- JPS59148468A JPS59148468A JP2198883A JP2198883A JPS59148468A JP S59148468 A JPS59148468 A JP S59148468A JP 2198883 A JP2198883 A JP 2198883A JP 2198883 A JP2198883 A JP 2198883A JP S59148468 A JPS59148468 A JP S59148468A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- video
- deflection
- switching
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/641—Multi-purpose receivers, e.g. for auxiliary information
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はテレビジョンも号等のラスクー走五方式の映稼
信号を表示・再生する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for displaying and reproducing a video signal of the Lascous system such as a television.
従来のテレビ受化（シは通常のテレビジョン１河号（例
えばＮ Ｔ Ｓ Ｕカラーテレビジョン信号）の水平走
査（駆動）周波数（１５，７３４ＫＨｚ ）で駆動され
ていた。近年、ブラウン龜・の解像度を向上させること
によりパーソナルコンピュータ用の表示装置として使用
できるようになした例もあるが、これらはテレビ受信機
がベースであり水平走査周波数がテレビジョン信号の場
合と同じであるため、有効な□走査線本数は２００本程
度しかなかった。従ってこの装置でフリッカのない表示
を行なおうとすると、縦方向に利用し得る。ドツト数は
２００ドツト程厩と彦り、本格的なパーソナルコンピュ
ータ用としては表示能力が低いという欠点があった。Traditional television reception systems were driven at the horizontal scanning (driving) frequency (15,734 KHz) of normal television (for example, NTSU color television signals). In some cases, improved resolution has made it possible to use it as a display device for personal computers, but since these are based on television receivers and the horizontal scanning frequency is the same as that of television signals, it is difficult to use them effectively. □The number of scanning lines was only about 200. Therefore, if you wanted to perform flicker-free display with this device, it could be used in the vertical direction.The number of dots was about 200, making it suitable for full-scale personal computers. However, the disadvantage was that the display ability was low.
一方、パーソナルコンピュータ４用の表示装置には有効
な走査線本数が４００本以上あり、縦方向に４００ドツ
ト以上の表示を杓なわせることができるものもあるが、
水平走査周波数がテレビジョン信号よＶ＝＜ ＜例えば
２４８ＫＨｚ）、ノンインターレース走査であるため、
テレビジョン信号を表示することはできなかった。On the other hand, some display devices for personal computers 4 have more than 400 effective scanning lines and can display more than 400 dots in the vertical direction.
Since the horizontal scanning frequency is V = << (for example, 248 KHz) and non-interlaced scanning is used for the television signal,
It was not possible to display a television signal.
本発明は上記従来の欠点を除去するため、ラスター走食
方式の映像４ｇ号を表示・再生する映像り主装置におい
て、水平走査周波数及汎インターレース方式の異なる映
像信号毎にそれぞれ対応した複数の走査制御部と、前記
映像信号中より取出した同期信号を前記複数の走善制御
部へ切替えて送出する第１の切替回路と、前記複数の走
査制御部より出力される複数の走査信号のうちの一つを
表示面の駆動部へ切替えて送出する第２の切替回路と、
前記第１及び第２の切替回路の切替動作を制御する切替
制御部とを伽えたもので、その目的とするところは水平
走査周波数及びインターレース方式の異なるｉ・数の映
像信号を再生し得る映像再生装置゛を実現することにあ
る。以下、ν１面について評細に説明する。In order to eliminate the above-mentioned drawbacks of the conventional art, the present invention provides a video main device for displaying and reproducing 4G raster-scanning video. a control section, a first switching circuit that switches and sends a synchronization signal extracted from the video signal to the plurality of scanning control sections, and one of the plurality of scanning signals output from the plurality of scanning control sections; a second switching circuit that switches and sends one signal to the drive unit of the display surface;
It is different from the switching control section that controls the switching operations of the first and second switching circuits, and its purpose is to reproduce video that can reproduce i number of video signals with different horizontal scanning frequencies and interlacing methods. The purpose is to realize a playback device. Hereinafter, the ν1 plane will be explained in detail.
図面は本発り４の一実施例を示すもので、図中１はアン
テナ、２はチューナーＩＰ回路、３は音声回路、４はス
ピーカ、５は検波・映像回路、６は色度回路である。７
及び８は走寛制御部で、同期回路７−Ｌ、ｓ−ｔと偏向
・高圧回路７−２．８−２とから７ｚる。９はコンバ−
ジェンス回路＜１０はブＰウン管（（４Ｔ）、ｌＩＨコ
’ｙノ々−ジエンスアセン７”’Ｊ、１２Ｕ偏向＋イル
、１３は第１の切替回路、１４は第２の切替回路、１５
は切替制御部、１６はスイッチ、１７は電源回路、１８
及び１９はそれぞれビデオデツキ等からの音声及び映像
信号の入力端子、２ｏは・ξ−ソナルコンピュータから
の映像信号の入力端子である。The drawing shows one embodiment of the present invention 4, in which 1 is an antenna, 2 is a tuner IP circuit, 3 is an audio circuit, 4 is a speaker, 5 is a detection/video circuit, and 6 is a chromaticity circuit. . 7
and 8 is a running control section, which is connected to the synchronous circuits 7-L, s-t and the deflection/high voltage circuit 7-2, 8-2. 9 is a converter
Jens circuit <10 is BuPun tube ((4T), lIH co'yno-jiens assen 7"'J, 12U deflection + illumination, 13 is the first switching circuit, 14 is the second switching circuit, 15
is a switching control unit, 16 is a switch, 17 is a power supply circuit, 18
and 19 are input terminals for audio and video signals from a video deck, etc., and 2o is an input terminal for video signals from a .xi.sonal computer.
走査制御部７の同期回路７−１及び偏向−制圧回路７−
２は、通當のテレビジョン信号の水平走査周波数（１５
，７３４ＫＨｚ）に対応した構成を備え、また走査制御
部８の同期回路８−１及び偏向・高圧回路８−２はパー
ソナルコンピュータのノンインターレース走査、縦方向
４００ドツト表示の映像１ｇ号の水平走査周波数（２４
８ＫＨｚ）に対応したｔｈａｔ−備えている。切替回路
１３及び１４はリレー、電子スイッチ等からなる。切替
回路１３は検波・吠械向路５よジ送出された同期信号を
走査制御部７または８へ切替えて送出する如くなってい
る。切替回路１４は表示面、即ちブラウン管■０の駆動
部を構成するコンバ−ジェンス回路９、コンバ−ジェン
スアセンブリ１１、偏向コイル１２へ走査制御部７また
は８より出力された走査（偏向）信号を、またブラウン
管ｌＯへ駆動電圧を切替えて送出する如くなっている。Synchronous circuit 7-1 and deflection-suppression circuit 7- of scan control section 7
2 is the horizontal scanning frequency (15
, 734KHz), and the synchronization circuit 8-1 and deflection/high-voltage circuit 8-2 of the scan control unit 8 are compatible with the horizontal scanning frequency of the personal computer's non-interlace scanning, 400-dot vertically displayed image No. 1g. (24
8KHz). The switching circuits 13 and 14 are composed of relays, electronic switches, and the like. The switching circuit 13 is configured to switch the synchronizing signal sent from the detection and scanning direction path 5 to the scanning control section 7 or 8 and send it out. The switching circuit 14 transmits the scanning (deflection) signal outputted from the scanning control section 7 or 8 to the convergence circuit 9, convergence assembly 11, and deflection coil 12 that constitute the drive section of the display screen, that is, the cathode ray tube 0. Further, the drive voltage is switched and sent to the cathode ray tube IO.
切替制御部１５はＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅ
ｓｓｉｎｇ Ｕｎｉｔ）を有しスイッチ１６の操作に応
じて切替回路１３．１４を切替制御する如くなっている
。The switching control unit 15 is a CPU (Central Process).
The switching unit 13 and 14 are configured to switch and control the switching circuits 13 and 14 in accordance with the operation of the switch 16.
チューナ・ＩＰ回路２及び入力端子１８より入力される
音声信号は音声回路３内で切替え選択され、チューナ・
ＩＦ回路２、入力端子１９及び２０より人力される映像
信号は検波・映像回路５内で切替え選択される如くなっ
ている。Audio signals input from the tuner/IP circuit 2 and the input terminal 18 are switched and selected within the audio circuit 3, and
Video signals input manually from the IF circuit 2 and input terminals 19 and 20 are switched and selected within the detection/video circuit 5.
電源回路１７？′ｉ複数（ここでＦｉ２個）の走査制御
部７及び８へ電源を供給できるようＢ電圧が２種類とれ
る如く構成されている。ブラウン管ＩＯのシャドウマス
クは穴の径とピッチが０．４藺程度以下の９精細度とな
っている。Power supply circuit 17? The configuration is such that two types of B voltage can be used so that power can be supplied to a plurality of scanning control sections 7 and 8 (here, two Fi). The shadow mask of the cathode ray tube IO has a resolution of 9, with hole diameter and pitch of less than about 0.4 mm.
上記構成においてテレビジョン信号を再生する場合はス
イッチ１６を操作し切替回路１３゜１４に走査制御部７
を選択させる。チューナ・ＩＰ回路２または入力端子１
９より人力した映像信号のうち輝度と色の情報は検波・
映像回路５と色度回路６を経てシララン管１０のグリッ
ドとカソードに入力される。また同期信号は走査制御部
７の同期回路７−１に送出され、偏向・制圧回路７−２
を駆動する。偏向・高圧回路７−２の偏向信号はコンバ
ージェンス回路９を経てコンバージェンスアセンブリ１
１に、また偏向コイル１２に送出され、駆動電圧はブラ
ウン管１０のアノードに送出され、結果として映像がブ
ラウン管１．０上に再生される。また音声信号は音声回
路３を経てスピーカ４がら送出される。When reproducing a television signal in the above configuration, the switch 16 is operated to cause the switching circuit 13 and 14 to switch to the scanning control section 7.
let them choose. Tuner/IP circuit 2 or input terminal 1
Brightness and color information of the video signal manually generated from 9 is detected and
The signal is inputted to the grid and cathode of the Silalane tube 10 via the video circuit 5 and the chromaticity circuit 6. Further, the synchronization signal is sent to the synchronization circuit 7-1 of the scanning control section 7, and the deflection/suppression circuit 7-2
to drive. The deflection signal of the deflection/high voltage circuit 7-2 is sent to the convergence assembly 1 via the convergence circuit 9.
1 and the deflection coil 12, and the driving voltage is sent to the anode of the cathode ray tube 10, resulting in the reproduction of an image on the cathode ray tube 1.0. Further, the audio signal is sent out from the speaker 4 via the audio circuit 3.
またノξ−ソナルコンピュータの映像信号を再生する場
合は、スイッチ１６を操作し切替回路１３、ｌ’４に走
査制御部８を選択させる。入ヵ端子２０より入力した映
像信号のうち同期信号は走査制御部８の同期回路８−１
に送出され、偏向・高圧回路８−２を駆動する。而して
偏向・高圧回路８−２より各回路へ水平走査周波数２４
、８ ＫＨｚ、ノンインターレース走査の偏向信号及び
駆動電圧が送出され映像が表示される。In addition, when reproducing the video signal of the ξ-sonal computer, the switch 16 is operated to cause the switching circuit 13, l'4 to select the scanning control section 8. Among the video signals input from the input terminal 20, the synchronization signal is sent to the synchronization circuit 8-1 of the scan control section 8.
and drives the deflection/high voltage circuit 8-2. The horizontal scanning frequency 24 is then transmitted from the deflection/high voltage circuit 8-2 to each circuit.
, 8 KHz, non-interlaced scanning deflection signals and drive voltages are sent out to display an image.
このように上記実施例によればスイッチ１６を操作する
ことにより走査制御部７及び８を切替えることができ、
水平走査周波数及びインターレース方式の異なる眠像信
号を再生することができる。In this way, according to the above embodiment, the scanning control units 7 and 8 can be switched by operating the switch 16.
It is possible to reproduce sleep image signals with different horizontal scanning frequencies and interlacing methods.
なお、上述した映像信号の他、専用の通信回線２１を検
波・映像回路５に接続し、各種の情報を含む静止画映像
信号等を表示させる如くなしてもよい。またこの場合に
は切替制御部１５に信号線２２を介して通信回線２１の
送出側より制御信号を与えて切替回路１３・、１４を切
替制御させることもできる。In addition to the video signals described above, a dedicated communication line 21 may be connected to the detection/video circuit 5 to display still image video signals containing various information. In this case, a control signal may be applied to the switching control unit 15 from the output side of the communication line 21 via the signal line 22 to control switching of the switching circuits 13 and 14.
東にまた映像信号よＶ取出した同期信号よりその水平走
査周波数及びインターレース方式を検出し、切替回路１
３．１４を自動的に切替制御させることもできる。The horizontal scanning frequency and interlacing method are detected from the synchronizing signal taken from the video signal to the east, and the switching circuit 1
3.14 can also be automatically switched and controlled.
以上説明したように本発明によれば、ラスター走査方式
の映像信号を表示・再生する映像再生装置において、水
平走査周波数及びインターレース方式の異なる映像信号
毎にそれぞれ対応した複数の走査制御部と、前記映像信
号中より取出した同期信号を前記複数の走査制御部へ切
替えて送出する第１の切替回路と、前記複数の走査制御
部より出力される複数の走査信号のうちの一つを表示面
の駆動部へ切替えて送出する第２の切替回路と、前記第
１及び第２の切替回路の切替動作を制御する切替制御部
とを備えたので、通常のテレビジョン信号やパーソナル
コンピュータの映像信号あるいは静止画伝送用の映像信
号のような水平走査周波数及びインターレース方式の異
゛なる各種の映像信号を必要な解像度をもって表示・再
生させることができ、高度情報通信システム等に利用す
ることができる。As described above, according to the present invention, in a video playback device that displays and plays back a raster scanning video signal, a plurality of scan control units respectively corresponding to video signals with different horizontal scanning frequencies and interlacing systems; a first switching circuit that switches and sends a synchronization signal extracted from a video signal to the plurality of scanning control sections; Since it is equipped with a second switching circuit that switches and sends data to the drive section, and a switching control section that controls the switching operations of the first and second switching circuits, it is possible to switch between ordinary television signals, personal computer video signals, or Various video signals with different horizontal scanning frequencies and interlace methods, such as video signals for still image transmission, can be displayed and reproduced with the necessary resolution, and can be used in advanced information communication systems.
図面は本発明の映像再生装置の一実施例を示すブロック
図である。
７．８・・・走査制御部、１０・・・ブラウン管、ＩＩ
・・・・コンバージェンスアセンブリ、１２・・・偏向
コイル、１３・・・第１の切替回路、１４・・・第２の
切替回路、１５・・・切替制御部、ｉ６・・・スイッチ
、１８・・・音声信号の入力端子、１９・・・映像信号
の入力端子、２０・・・ノξ−ソナルコンピュータの映
像信号の入力光子。
特許出願人 日本電信電話公社
代理人弁理士 吉 １）梢 孝The drawing is a block diagram showing an embodiment of the video playback device of the present invention. 7.8...Scanning control unit, 10...Cathode ray tube, II
...Convergence assembly, 12... Deflection coil, 13... First switching circuit, 14... Second switching circuit, 15... Switching control unit, i6... Switch, 18... . . . Audio signal input terminal, 19 . . . video signal input terminal, 20 . . . Patent applicant Yoshi, patent attorney representing Nippon Telegraph and Telephone Public Corporation 1) Takashi Kozue
Claims (1)
生装置において、水平走査周波数及びインターレース方
式の異なる映像信号毎にそれぞれ対応した被数の走査制
御部と、前記映像イぎ号中より取出した同期信号を前記
複数の走査制御部へ切替えて送出する第１の切替回路と
、前Ｆ複数の走査制御部より出力される複数の走査信号
・υうちの一つを表示面の駆動部へ切替えて送出する第
２の切替回路と、前記第１及び第２の切替回路の切替動
作を制御する切替制御部と′ｆ、備えたことを特徴とす
る映像再生装置。In a video playback device for displaying and reproducing a raster scanning video signal, a scan control unit corresponding to each video signal with a different horizontal scanning frequency and an interlacing method, and A first switching circuit that switches and sends a synchronization signal to the plurality of scan control units, and one of the plurality of scan signals υ output from the plurality of front F scan control units to the drive unit of the display surface. 1. A video reproducing device comprising: a second switching circuit for transmitting a signal; and a switching control section 'f for controlling switching operations of the first and second switching circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198883A JPS59148468A (en) | 1983-02-15 | 1983-02-15 | Video reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198883A JPS59148468A (en) | 1983-02-15 | 1983-02-15 | Video reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59148468A true JPS59148468A (en) | 1984-08-25 |
Family
ID=12070402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2198883A Pending JPS59148468A (en) | 1983-02-15 | 1983-02-15 | Video reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59148468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173554A2 (en) * | 1984-08-31 | 1986-03-05 | Sharp Kabushiki Kaisha | CRT Display unit |
| EP0817507A1 (en) * | 1996-07-03 | 1998-01-07 | Koninklijke Philips Electronics N.V. | Method for displaying a picture from a graphic processor of the VGA-type on a television receiver |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4856326A (en) * | 1971-11-16 | 1973-08-08 | ||
| JPS51129120A (en) * | 1975-05-06 | 1976-11-10 | Toshiba Corp | Frequency change-over device |
| JPS5451320A (en) * | 1977-09-30 | 1979-04-23 | Hitachi Ltd | Television receiver capable of automatic reception of broadcast different in number of scanning lines |
-
1983
- 1983-02-15 JP JP2198883A patent/JPS59148468A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4856326A (en) * | 1971-11-16 | 1973-08-08 | ||
| JPS51129120A (en) * | 1975-05-06 | 1976-11-10 | Toshiba Corp | Frequency change-over device |
| JPS5451320A (en) * | 1977-09-30 | 1979-04-23 | Hitachi Ltd | Television receiver capable of automatic reception of broadcast different in number of scanning lines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173554A2 (en) * | 1984-08-31 | 1986-03-05 | Sharp Kabushiki Kaisha | CRT Display unit |
| EP0817507A1 (en) * | 1996-07-03 | 1998-01-07 | Koninklijke Philips Electronics N.V. | Method for displaying a picture from a graphic processor of the VGA-type on a television receiver |
| FR2750822A1 (en) * | 1996-07-03 | 1998-01-09 | Philips Electronics Nv | METHOD FOR DISPLAYING A VGA IMAGE ON A TELEVISION |
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