JPS6045577U - Chroma signal correction circuit - Google Patents
Chroma signal correction circuitInfo
- Publication number
- JPS6045577U JPS6045577U JP13693183U JP13693183U JPS6045577U JP S6045577 U JPS6045577 U JP S6045577U JP 13693183 U JP13693183 U JP 13693183U JP 13693183 U JP13693183 U JP 13693183U JP S6045577 U JPS6045577 U JP S6045577U
- Authority
- JP
- Japan
- Prior art keywords
- chroma signal
- correction circuit
- signal correction
- circuit
- pseudo
- 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
- Processing Of Color Television Signals (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図は従来一般のＶＴＲにおける記録系のブロック図
、第２図は同ＶＴＲにおける再生系のブロック図、第３
図ａ、 ｂは疑似ＳＥＣＡＭ方式のクロマ信号の周波数
スさクトラム、第４図は本考案回路を使用したＶＴＲの
再生系のブロック図、第５図は本考案の１実施例の回路
図である。
１４・・・・・・クロマ信号補正回路、１５・・・・・
・クロマ信号増幅器、Ｌ□？ Ｃ３・・・・・・共振用
のコイルとコンデンサ、Ｑ３・・・・・・スイッチング
トランジスタ。Figure 1 is a block diagram of the recording system in a conventional general VTR, Figure 2 is a block diagram of the playback system in the same VTR, and Figure 3 is a block diagram of the recording system in a conventional VTR.
Figures a and b are the frequency spectrum of the chroma signal of the pseudo-SECAM system, Figure 4 is a block diagram of a VTR playback system using the circuit of the present invention, and Figure 5 is a circuit diagram of one embodiment of the present invention. . 14...Chroma signal correction circuit, 15...
・Chroma signal amplifier, L□? C3: Resonant coil and capacitor, Q3: Switching transistor.
Claims (1)
のカラーテレビジョン信号を記録・再生することができ
るビデオテープレコーダにおいて、再生系のクロマ信号
処理回路に疑似ＳＥＣＡＭ方式゛ のクロマ信号の特
定周波数に共振する共振回路とスイッチング素子との直
列回路を挿入してなり、方式切換に応じて前記スイッチ
ング素子をオンオフ制御し、再生系の周波数特性を切換
えるようにしたことを特徴とするクロマ信号補正回路。In a video tape recorder that can record and play back color television signals of multiple formats, including the PAL format and the pseudo-SECAM format, the chroma signal processing circuit of the playback system resonates with a specific frequency of the chroma signal of the pseudo-SECAM format. What is claimed is: 1. A chroma signal correction circuit comprising a series circuit of a resonant circuit and a switching element, the switching element being on/off controlled in response to system switching to switch the frequency characteristics of a reproduction system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13693183U JPS6045577U (en) | 1983-09-02 | 1983-09-02 | Chroma signal correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13693183U JPS6045577U (en) | 1983-09-02 | 1983-09-02 | Chroma signal correction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6045577U true JPS6045577U (en) | 1985-03-30 |
Family
ID=30307721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13693183U Pending JPS6045577U (en) | 1983-09-02 | 1983-09-02 | Chroma signal correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6045577U (en) |
-
1983
- 1983-09-02 JP JP13693183U patent/JPS6045577U/en active Pending
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