JPS6266464U - - Google Patents
Info
- Publication number
- JPS6266464U JPS6266464U JP15881985U JP15881985U JPS6266464U JP S6266464 U JPS6266464 U JP S6266464U JP 15881985 U JP15881985 U JP 15881985U JP 15881985 U JP15881985 U JP 15881985U JP S6266464 U JPS6266464 U JP S6266464U
- Authority
- JP
- Japan
- Prior art keywords
- current
- synchronization
- circuit
- distortion
- correction
- 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
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は、本考案の一実施例を示す回路図、第
２図は同期つぶれが生じることを説明する為の回
路図、第３図は従来の同期つぶれ補正回路を示す
回路図、第４図は第１図の具体回路例を示す回路
図、及び第５図は第１図の別の具体回路例を示す
回路図である。
主な図番の説明、１５……入力結合トランジス
タ、２０……第１定電流回路、２１……補正抵抗
、２４……第２定電流回路。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram for explaining the occurrence of synchronization loss, FIG. 3 is a circuit diagram showing a conventional synchronization loss correction circuit, and FIG. The figure is a circuit diagram showing the specific circuit example of FIG. 1, and FIG. 5 is a circuit diagram showing another specific circuit example of FIG. 1. Explanation of main figure numbers, 15... Input coupling transistor, 20... First constant current circuit, 21... Correction resistor, 24... Second constant current circuit.
Claims (1)
正する為の同期つぶれ補正回路であつて、クラン
プ時にコンデンサに流れる電流を検出し、該電流
に応じた値の電流を発生する第１定電流回路と、
出力信号路に直列に挿入される補正抵抗と、該補
正抵抗に前記第１定電流回路の出力電流に応じた
電流を流す第２定電流回路とから成り、前記補正
抵抗に生じる電圧降下により前記同期信号のつぶ
れを補正する様にしたことを特徴とする同期つぶ
れ補正回路。 A first constant current circuit, which is a synchronization distortion correction circuit for correcting distortion of a synchronization signal during synchronization clamping, detects a current flowing through the capacitor during clamping, and generates a current having a value corresponding to the detected current;
It consists of a correction resistor inserted in series in the output signal path, and a second constant current circuit that allows a current to flow through the correction resistor in accordance with the output current of the first constant current circuit, and the voltage drop occurring in the correction resistor causes the A synchronization distortion correction circuit characterized in that it corrects distortion of a synchronization signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15881985U JPS6266464U (en) | 1985-10-17 | 1985-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15881985U JPS6266464U (en) | 1985-10-17 | 1985-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6266464U true JPS6266464U (en) | 1987-04-24 |
Family
ID=31082664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15881985U Pending JPS6266464U (en) | 1985-10-17 | 1985-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6266464U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57152779A (en) * | 1981-03-18 | 1982-09-21 | Toshiba Corp | Synchronous signal clamping circuit for video signal |
| JPS59132284A (en) * | 1982-12-08 | 1984-07-30 | ドイチエ・トムソン−ブラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Video signal processing circuit using clamping circuit |
-
1985
- 1985-10-17 JP JP15881985U patent/JPS6266464U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57152779A (en) * | 1981-03-18 | 1982-09-21 | Toshiba Corp | Synchronous signal clamping circuit for video signal |
| JPS59132284A (en) * | 1982-12-08 | 1984-07-30 | ドイチエ・トムソン−ブラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Video signal processing circuit using clamping circuit |
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