JPS59164376U - Beam index type color television receiver - Google Patents
Beam index type color television receiverInfo
- Publication number
- JPS59164376U JPS59164376U JP6009183U JP6009183U JPS59164376U JP S59164376 U JPS59164376 U JP S59164376U JP 6009183 U JP6009183 U JP 6009183U JP 6009183 U JP6009183 U JP 6009183U JP S59164376 U JPS59164376 U JP S59164376U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- index
- scanning direction
- horizontal scanning
- picture tube
- 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
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は螢光面の配列説明図、第2図は従来のビームイ
ンデックス型カラーテレビジョン受像機のブロック図、
第3図a、 b、 cは第2図にょる′ □3原
色それぞれの再生時のビーム電流波形図、第一4図はこ
の考案のビームインデックス型カラーテ ルビジ
ョン受像機の1実施例のブロック図、第5図a、 b
、 cは第4図による3原色それぞれの再生時のビー
ム電流波形図である。
1・・・受像管、2・・・光検出器、3. 6. 9・
・・第1ないし第3バンドパスフイルタ、4,7・・・
第1、第2混合器、5・・・搬送波端子、8・・・クロ
マ端子、10・・・加算器、11・・・輝度端子、12
.15・・・第1、第2ビデオアンプ、14・・・アナ
ログスイッチ、16・・・差動アンプ、R,G、 B・
・・赤、緑、青色螢光体、■・・・インデックス螢光体
。Figure 1 is an explanatory diagram of the arrangement of fluorescent surfaces, Figure 2 is a block diagram of a conventional beam index type color television receiver,
Figures 3a, b, and c are from Figure 2' □Beam current waveform diagram during reproduction of each of the three primary colors, Figure 14 is a block diagram of one embodiment of the beam index type color television receiver of this invention. Fig. 5a, b
, c are beam current waveform diagrams during reproduction of each of the three primary colors according to FIG. 1... Picture tube, 2... Photodetector, 3. 6. 9・
・First to third band pass filters, 4, 7...
1st and 2nd mixers, 5...carrier terminal, 8...chroma terminal, 10...adder, 11...luminance terminal, 12
.. 15... First and second video amplifiers, 14... Analog switch, 16... Differential amplifier, R, G, B.
...Red, green, blue phosphors, ■... Index phosphors.
Claims (1)
の3原色螢光体を前記水平走査方向にくり返し配列する
とともに、前記水平走査方向に垂直なストライブ状のイ
ンデックス螢光体を前記3原色螢光体の配列周期の整数
倍の周期で前記水平走査方向にくり返し配ダ1ル、かつ
、前記受像管の単電子銃により前記螢光面をビーム走査
するとともに、前記螢光面の光信号から前記インデック
ス螢光体にもとづくビーム位置制御用のインデックス信
号を抽出形成し、前記インデックス信号と色信号との混
合信号に輝度信号を加算して前記受像管にビーム走査用
の映像信号を出力するビームインデックス型カラーテレ
ビジョン受像機において、前記インデックス信号の入力
により前記インデックス螢光体の走査期間にのみゲート
パルスを出力するパルス発生部と、前記ゲートパルスに
より作動するスイッチ体を有し、前記走査期間に前記映
像信号を遮断しビーム量一定制御用の所定一定レベルの
制御信号を前記受像管に出力する出力制御部とを備えた
ビームインデックス型カラーテレビジョン受像機。On the phosphor surface of the picture tube, three primary color phosphors in stripes perpendicular to the horizontal scanning direction are arranged repeatedly in the horizontal scanning direction, and index phosphors in stripes perpendicular to the horizontal scanning direction are arranged repeatedly in the horizontal scanning direction. The fluorescent surface is scanned with a beam repeatedly in the horizontal scanning direction at a period that is an integral multiple of the arrangement period of the three primary color phosphors, and a single electron gun of the picture tube is used to scan the fluorescent surface. An index signal for beam position control based on the index phosphor is extracted and formed from the optical signal, and a luminance signal is added to a mixed signal of the index signal and color signal to provide a video signal for beam scanning to the picture tube. A beam index type color television receiver that outputs a beam index type color television receiver comprising: a pulse generator that outputs a gate pulse only during a scanning period of the index phosphor in response to input of the index signal; and a switch body operated by the gate pulse. and an output control section that cuts off the video signal during the scanning period and outputs a control signal of a predetermined constant level for controlling the beam amount constant to the picture tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6009183U JPS59164376U (en) | 1983-04-19 | 1983-04-19 | Beam index type color television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6009183U JPS59164376U (en) | 1983-04-19 | 1983-04-19 | Beam index type color television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59164376U true JPS59164376U (en) | 1984-11-05 |
Family
ID=30190331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6009183U Pending JPS59164376U (en) | 1983-04-19 | 1983-04-19 | Beam index type color television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59164376U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730482A (en) * | 1980-07-29 | 1982-02-18 | Matsushita Electric Ind Co Ltd | Beam index type color television receiver |
-
1983
- 1983-04-19 JP JP6009183U patent/JPS59164376U/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5730482A (en) * | 1980-07-29 | 1982-02-18 | Matsushita Electric Ind Co Ltd | Beam index type color television receiver |
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