JPS63117169U - - Google Patents
Info
- Publication number
- JPS63117169U JPS63117169U JP703787U JP703787U JPS63117169U JP S63117169 U JPS63117169 U JP S63117169U JP 703787 U JP703787 U JP 703787U JP 703787 U JP703787 U JP 703787U JP S63117169 U JPS63117169 U JP S63117169U
- Authority
- JP
- Japan
- Prior art keywords
- image
- pulse width
- synchronization signal
- horizontal synchronization
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の一実施例の回路のブロツク図
、第２図は本考案の一実施例の回路図、第３図は
第２図の回路の波形図、第４図は第２図の変形回
路図、第５図は従来技術の回路のブロツク図を示
したものである。
Figure 1 is a block diagram of a circuit according to an embodiment of the present invention, Figure 2 is a circuit diagram of an embodiment of the present invention, Figure 3 is a waveform diagram of the circuit of Figure 2, and Figure 4 is a diagram of the circuit of Figure 2. FIG. 5 shows a block diagram of a prior art circuit.
Claims (1)
できる画像モニタにおいて、画像信号から分離さ
れた水平同期信号と、水平偏向回路から得られる
水平駆動信号との位相差を検出する検出回路と、
該検出回路の出力パルスのパルス幅を伸張するパ
ルス幅伸張回路とを設け、該パルス幅伸張回路の
出力により、水平同期信号周波数の異なる画像信
号の切換え時におこる画像の乱れをミユーテイン
グ乃至ブランキングするようにしたテレビジヨン
モニタ。 In an image monitor capable of supporting two or more different horizontal synchronization signal frequencies, a detection circuit detects a phase difference between a horizontal synchronization signal separated from an image signal and a horizontal drive signal obtained from a horizontal deflection circuit;
A pulse width extension circuit is provided to extend the pulse width of the output pulse of the detection circuit, and the output of the pulse width extension circuit is used to mute or blank image disturbances that occur when switching between image signals having different horizontal synchronization signal frequencies. TV monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP703787U JPS63117169U (en) | 1987-01-22 | 1987-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP703787U JPS63117169U (en) | 1987-01-22 | 1987-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63117169U true JPS63117169U (en) | 1988-07-28 |
Family
ID=30790119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP703787U Pending JPS63117169U (en) | 1987-01-22 | 1987-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63117169U (en) |
-
1987
- 1987-01-22 JP JP703787U patent/JPS63117169U/ja active Pending