JPS6452370U - - Google Patents
Info
- Publication number
- JPS6452370U JPS6452370U JP14744387U JP14744387U JPS6452370U JP S6452370 U JPS6452370 U JP S6452370U JP 14744387 U JP14744387 U JP 14744387U JP 14744387 U JP14744387 U JP 14744387U JP S6452370 U JPS6452370 U JP S6452370U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- color
- signal
- conversion circuit
- color difference
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例による色調整回路の
構成を示すブロツク図、第２図は同実施例におけ
るマトリクス回路の詳細を示す回路構成図、第３
図は従来の色調整回路の構成を示すブロツク図、
第４図は従来回路の色相調整動作を説明するため
の色差信号のベクトル図、第５図は第３図におけ
るマトリクス回路の詳細を示す回路構成図である
。
３１……クロマトラツプ、３２……Ａ／Ｄ変換
回路、３３……クロマＢＰＦ、３４……第１帯域
増幅器、３５……色同期回路、３６……第２帯域
増幅器、３７，３８……復調回路、３９……マト
リクス回路、４０……制御回路、４１……キー入
力部、４２……三角関数テーブル、５１〜５４…
…乗算器、５５〜６０……加算器。
FIG. 1 is a block diagram showing the configuration of a color adjustment circuit according to an embodiment of the present invention, FIG. 2 is a circuit configuration diagram showing details of a matrix circuit in the same embodiment, and FIG.
The figure is a block diagram showing the configuration of a conventional color adjustment circuit.
FIG. 4 is a vector diagram of color difference signals for explaining the hue adjustment operation of the conventional circuit, and FIG. 5 is a circuit configuration diagram showing details of the matrix circuit in FIG. 3. 31... chroma trap, 32... A/D conversion circuit, 33... chroma BPF, 34... first band amplifier, 35... color synchronization circuit, 36... second band amplifier, 37, 38... demodulation circuit , 39... Matrix circuit, 40... Control circuit, 41... Key input section, 42... Trigonometric function table, 51-54...
...multiplier, 55-60...adder.
Claims (1)
号から色差信号を復調する復調回路と、この復調
回路により復調された色差信号を輝度信号と共に
デジタル信号に変換するＡ／Ｄ変換回路と、この
Ａ／Ｄ変換回路によりデジタル信号に変換された
色差信号及び輝度信号を合成して色信号を再生す
るマトリクス回路と、上記色差信号を合成する際
、操作信号により色差信号の合成比を可変して色
相及び色飽和度を調整する手段とを具備したこと
を特徴とする色調整回路。 The color adjustment circuit of a television receiver includes a demodulation circuit that demodulates a color difference signal from a carrier color signal, an A/D conversion circuit that converts the color difference signal demodulated by this demodulation circuit into a digital signal together with a luminance signal, and this A/D conversion circuit. A matrix circuit that combines the color difference signal and luminance signal converted into digital signals by the D conversion circuit to reproduce the color signal; A color adjustment circuit comprising means for adjusting color saturation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14744387U JPS6452370U (en) | 1987-09-29 | 1987-09-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14744387U JPS6452370U (en) | 1987-09-29 | 1987-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6452370U true JPS6452370U (en) | 1989-03-31 |
Family
ID=31417847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14744387U Pending JPS6452370U (en) | 1987-09-29 | 1987-09-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6452370U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163995A (en) * | 1983-03-08 | 1984-09-17 | Canon Inc | Hue adjusting device |
| JPS6072392A (en) * | 1983-08-30 | 1985-04-24 | ア−ルシ−エ− コ−ポレ−ション | Signal processor |
-
1987
- 1987-09-29 JP JP14744387U patent/JPS6452370U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59163995A (en) * | 1983-03-08 | 1984-09-17 | Canon Inc | Hue adjusting device |
| JPS6072392A (en) * | 1983-08-30 | 1985-04-24 | ア−ルシ−エ− コ−ポレ−ション | Signal processor |
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