JPS59151290U - cursor display device - Google Patents
cursor display deviceInfo
- Publication number
- JPS59151290U JPS59151290U JP4602783U JP4602783U JPS59151290U JP S59151290 U JPS59151290 U JP S59151290U JP 4602783 U JP4602783 U JP 4602783U JP 4602783 U JP4602783 U JP 4602783U JP S59151290 U JPS59151290 U JP S59151290U
- Authority
- JP
- Japan
- Prior art keywords
- register
- cursor
- video signal
- down counter
- display device
- 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.)
- Granted
Links
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図はカーソル表示装置の従来の回路図、第２図は第
１図の動作を説明する為の波形図、第３図は本考案に係
るカーソル表示装置の一実例の回路図、第４図は第３図
の動作を説明する為の波形図である。
１１・・・Ｘレジスタ、２１・・・Ｘレジスタ、１２゜
２２・・・プリセッタブルなダウンカウンタ、ＤＰ・・
・１１２ドツトパルス、５０・・・エクスクルシブオア
回路。FIG. 1 is a conventional circuit diagram of a cursor display device, FIG. 2 is a waveform diagram for explaining the operation of FIG. 1, FIG. 3 is a circuit diagram of an example of a cursor display device according to the present invention, and FIG. The figure is a waveform diagram for explaining the operation of FIG. 3. 11...X register, 21...X register, 12゜22...presettable down counter, DP...
・112 dot pulse, 50...exclusive OR circuit.
Claims (1)
平方向のカーソルビデオ信号発生用のダウンカウンタを
有し、このダウンカウンタでドツトパルスをカウントす
るようにした水平方向のカーソルビデオ信号発生回路と
、ＸレジスタとこのＸレジスタの値がプリセットされる
垂直方向のカーソルビデオ信号発生用のダウンカウンタ
を有し、このダウンカウンタで水平同期信号をカウント
するようにした垂直方向のカーソルビデオ信号発生回路
を具備し、前記両発生回路の出力が一致した時ビデオ信
号をオンにしてカーソル図形を表示させるようにした装
置において、 前記ドツトパルスの周波数を１７２にする手段、前記水
平方向のカーソルビデオ信号発生用のダウンカウンタに
Ｘレジスタの最下位ビットを除いた値をプリセットする
手段、及び前記１／２の周波数のドツトパルスと前記Ｘ
レジスタの最下位ビットを利用して実効的に１ドツトパ
ルスをクロックドして前記Ｘレジスタでカウントした場
合と同じ時間的分解能を得る手段を設けたことを特徴と
するカーソル表示装置。[Claims for Utility Model Registration] A horizontal cursor having an X register and a down counter for generating a horizontal cursor video signal to which the value of the X register is preset, and the down counter counts dot pulses. A vertical cursor that has a video signal generation circuit, an X register, and a vertical cursor to which the value of the In an apparatus comprising a video signal generation circuit, and configured to turn on the video signal and display a cursor figure when the outputs of the two generation circuits match, means for setting the frequency of the dot pulse to 172, and a means for setting the frequency of the dot pulse to 172; means for presetting a value excluding the least significant bit of the X register in a down counter for video signal generation;
A cursor display device comprising means for effectively clocking one dot pulse using the least significant bit of the register to obtain the same temporal resolution as counting by the X register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4602783U JPS59151290U (en) | 1983-03-30 | 1983-03-30 | cursor display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4602783U JPS59151290U (en) | 1983-03-30 | 1983-03-30 | cursor display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59151290U true JPS59151290U (en) | 1984-10-09 |
| JPS646546Y2 JPS646546Y2 (en) | 1989-02-20 |
Family
ID=30176569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4602783U Granted JPS59151290U (en) | 1983-03-30 | 1983-03-30 | cursor display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59151290U (en) |
-
1983
- 1983-03-30 JP JP4602783U patent/JPS59151290U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS646546Y2 (en) | 1989-02-20 |
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