JPH01139681U - - Google Patents
Info
- Publication number
- JPH01139681U JPH01139681U JP1988035886U JP3588688U JPH01139681U JP H01139681 U JPH01139681 U JP H01139681U JP 1988035886 U JP1988035886 U JP 1988035886U JP 3588688 U JP3588688 U JP 3588688U JP H01139681 U JPH01139681 U JP H01139681U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- character
- circuit
- vertical
- phase shift
- 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
- 230000010363 phase shift Effects 0.000 claims description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案のテレビジヨン受像機の一実施
例を示す回路図、第２図は第１図の動作を説明す
る波形図、第３図は従来のテレビジヨン受像機を
示す回路図、第４図は水平、垂直同期信号を示す
波形図である。
１……偏向回路、２……オンスクリーンＩＣ、
３……陰極線管（ＣＲＴ）、４……移相回路、Ｃ
１，Ｃ２……コンデンサ、ＭＭ……単安定マルチ
バイブレータ、Ｑ１，Ｑ２……ＮＰＮトランジス
タ、Ｒ１〜Ｒ７……抵抗、Ｒ８……可変抵抗。
FIG. 1 is a circuit diagram showing an embodiment of the television receiver of the present invention, FIG. 2 is a waveform diagram explaining the operation of FIG. 1, and FIG. 3 is a circuit diagram showing a conventional television receiver. FIG. 4 is a waveform diagram showing horizontal and vertical synchronizing signals. 1... Deflection circuit, 2... On-screen IC,
3... Cathode ray tube (CRT), 4... Phase shift circuit, C
1 , C2 ... Capacitor, MM... Monostable multivibrator, Q1 , Q2 ... NPN transistor, R1 to R7 ... Resistor, R8 ... Variable resistor.
Claims (1)
信号による表示文字を重畳して表示する機能を有
するテレビジヨン受像機において、 水平同期信号及び垂直同期信号を供給する偏向
回路と、 前記垂直同期信号の立上り、立下りのうち少な
くとも一方の位相をずらせた垂直移相同期信号を
発生する移相回路と、 前記水平同期信号及び、前記垂直移相同期信号
のタイミングに合わせて文字を出力する文字信号
発生回路と、 前記文字信号発生回路の文字出力信号を、テレ
ビジヨン映像信号に重畳してＣＲＴ表示画面上に
表示する文字重畳回路とを有して構成したことを
特徴とするテレビジヨン受像機。[Scope of Claim for Utility Model Registration] In a television receiver having a function of displaying characters by superimposing a character signal on a display screen by a television video signal, a deflection circuit for supplying a horizontal synchronizing signal and a vertical synchronizing signal; , a phase shift circuit that generates a vertical phase shift synchronization signal in which at least one of the rising and falling phases of the vertical synchronization signal is shifted; and a character superimposition circuit that superimposes the character output signal of the character signal generation circuit onto a television video signal and displays it on a CRT display screen. television receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988035886U JPH01139681U (en) | 1988-03-18 | 1988-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988035886U JPH01139681U (en) | 1988-03-18 | 1988-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139681U true JPH01139681U (en) | 1989-09-25 |
Family
ID=31262517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988035886U Pending JPH01139681U (en) | 1988-03-18 | 1988-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139681U (en) |
-
1988
- 1988-03-18 JP JP1988035886U patent/JPH01139681U/ja active Pending
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