JPS6088672U - Digital automatic color saturation control circuit - Google Patents
Digital automatic color saturation control circuitInfo
- Publication number
- JPS6088672U JPS6088672U JP18132783U JP18132783U JPS6088672U JP S6088672 U JPS6088672 U JP S6088672U JP 18132783 U JP18132783 U JP 18132783U JP 18132783 U JP18132783 U JP 18132783U JP S6088672 U JPS6088672 U JP S6088672U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color saturation
- multiplication coefficient
- burst
- amplitude
- 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、第２図はカラー画像信号の波形図、第３図はデ
ジタル化の説明図、第４図は本考案によ ゛るデ
ジタル自動色飽和度制御回路のブ冶ツク図、第５図は第
４図のバースト振幅値検出回路の一実施例の回路図を示
す。
９・・・バースト振幅値検出回路、１０・・・基準クロ
マレベル発生回路、１１・・・減算回路、１２・・・乗
算係数発生回路、１３・・・乗算回路。Figures 1 and 2 are waveform diagrams of color image signals, Figure 3 is an explanatory diagram of digitization, Figure 4 is a block diagram of the digital automatic color saturation control circuit according to the present invention, and Figure 5. The figure shows a circuit diagram of an embodiment of the burst amplitude value detection circuit of FIG. 4. 9... Burst amplitude value detection circuit, 10... Reference chroma level generation circuit, 11... Subtraction circuit, 12... Multiplication coefficient generation circuit, 13... Multiplication circuit.
Claims (1)
た搬送色信号を入力し、その信号からバースト信号の振
幅を検出するバースト振幅値検出回路と、基準色飽和度
値を表わす信号を発生する基準クロマレベル発生回路と
、前記バースト振幅値検出回路及び基準クロマレベル発
生回路のそれぞれの出力を入力とし、検出されたバース
ト信号の振幅と前記基準色飽和度値との差を求める減算
回路と、その差値に基づき乗算係数を求める乗算係数発
生回路と、前記搬送色信号の標本値に前記乗算係数を乗
じ補正された搬送色信号を出力する乗算器とからなるこ
とを特徴とするデジタル自動色飽和度制御回路。In a digital television receiver, a burst amplitude value detection circuit inputs a digitized carrier color signal and detects the amplitude of a burst signal from that signal, and a reference chroma level generator generates a signal representing a reference color saturation value. a subtraction circuit which receives the respective outputs of the burst amplitude value detection circuit and the reference chroma level generation circuit and calculates the difference between the amplitude of the detected burst signal and the reference color saturation value; A digital automatic color saturation control circuit comprising: a multiplication coefficient generation circuit that calculates a multiplication coefficient based on the multiplication coefficient; and a multiplier that multiplies a sample value of the carrier color signal by the multiplication coefficient and outputs a corrected carrier color signal. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18132783U JPS6088672U (en) | 1983-11-24 | 1983-11-24 | Digital automatic color saturation control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18132783U JPS6088672U (en) | 1983-11-24 | 1983-11-24 | Digital automatic color saturation control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6088672U true JPS6088672U (en) | 1985-06-18 |
Family
ID=30392950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18132783U Pending JPS6088672U (en) | 1983-11-24 | 1983-11-24 | Digital automatic color saturation control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6088672U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844883A (en) * | 1981-06-10 | 1983-03-15 | シ−メンス・アクチエンゲゼルシヤフト | Method and device for adjusting digital color signal |
-
1983
- 1983-11-24 JP JP18132783U patent/JPS6088672U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844883A (en) * | 1981-06-10 | 1983-03-15 | シ−メンス・アクチエンゲゼルシヤフト | Method and device for adjusting digital color signal |
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