JPS6066176U - Clamp level control circuit - Google Patents
Clamp level control circuitInfo
- Publication number
- JPS6066176U JPS6066176U JP1983158766U JP15876683U JPS6066176U JP S6066176 U JPS6066176 U JP S6066176U JP 1983158766 U JP1983158766 U JP 1983158766U JP 15876683 U JP15876683 U JP 15876683U JP S6066176 U JPS6066176 U JP S6066176U
- Authority
- JP
- Japan
- Prior art keywords
- clamp
- circuit
- clamp level
- color difference
- level
- 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)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Color Television Image Signal Generators (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図は従来回路のブロック図、第２図は本考案の第１
実施例の回路ブロック図、第３図は同第２実施例の回路
ブロック図をそれぞれ示す。
主な図番の説明、１０・・・可変クランプ回路、１５・
・・比較回路、２・・・固定クランプ回路。Figure 1 is a block diagram of the conventional circuit, and Figure 2 is the first circuit of the present invention.
FIG. 3 shows a circuit block diagram of the second embodiment, respectively. Explanation of main figure numbers, 10...Variable clamp circuit, 15.
... Comparison circuit, 2... Fixed clamp circuit.
Claims (1)
遅延した遅延色差信号を、それぞれ別々２４ の
クランプ回路によりクランプした後、ＩＨ毎に反転する
スイッチング回路に入力し連続する色差信号を得る連続
化回路に於いて、 前記クランプ回路の一方をクランプレベルを固定した固
定クランプ回路とし、他方をクランプレベルを変更可能
にした可変クランプ回路とすると共に前記固定クランプ
レベルに基づき、前記可変クランプレベルとの差を検出
回路にて検出し、該検出出力を前記可変クランプ回路の
制御入力とすることを特徴とするクランプレベル制御回
路。[Claims for Utility Model Registration] Line-sequential color difference signals and IH processing of the color difference signals by a delay circuit.
After each delayed delayed color difference signal is clamped by 24 separate clamp circuits, one of the clamp circuits is connected to a clamp level in a continuous circuit to obtain a continuous color difference signal by inputting it to a switching circuit that is inverted for each IH. The fixed clamp circuit is fixed, and the other is a variable clamp circuit whose clamp level can be changed. Based on the fixed clamp level, a detection circuit detects the difference between the fixed clamp level and the variable clamp level, and the detected output is used as the variable clamp circuit. A clamp level control circuit characterized in that the circuit is used as a control input of a clamp circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983158766U JPS6066176U (en) | 1983-10-13 | 1983-10-13 | Clamp level control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983158766U JPS6066176U (en) | 1983-10-13 | 1983-10-13 | Clamp level control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6066176U true JPS6066176U (en) | 1985-05-10 |
Family
ID=30349671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983158766U Pending JPS6066176U (en) | 1983-10-13 | 1983-10-13 | Clamp level control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234493A (en) * | 1985-08-07 | 1987-02-14 | Canon Inc | Signal processor with offset |
-
1983
- 1983-10-13 JP JP1983158766U patent/JPS6066176U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234493A (en) * | 1985-08-07 | 1987-02-14 | Canon Inc | Signal processor with offset |
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