JPH02133078U - - Google Patents
Info
- Publication number
- JPH02133078U JPH02133078U JP4097389U JP4097389U JPH02133078U JP H02133078 U JPH02133078 U JP H02133078U JP 4097389 U JP4097389 U JP 4097389U JP 4097389 U JP4097389 U JP 4097389U JP H02133078 U JPH02133078 U JP H02133078U
- Authority
- JP
- Japan
- Prior art keywords
- color
- circuit
- output
- gate pulse
- burst gate
- 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
- 230000010355 oscillation Effects 0.000 claims description 8
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例に係る色度処理回路
が組込まれたテレビジヨン受像機を示すブロツク
図、第２図は本考案の他の実施例を示すブロツク
図、第３図は本考案の他の実施例を示すブロツク
図、第４図はカラーテレビジヨン受像機を示すブ
ロツク図である。
４……映像検波回路、５……色回路、１０……
発振回路、１１……位相可変回路、１３，２０…
…合成回路、１５……可変アンプ、１８……バー
ストゲートパルス発生回路、１９……色信号除去
回路、Ｓ１〜Ｓ３……スイツチ。
FIG. 1 is a block diagram showing a television receiver incorporating a chromaticity processing circuit according to one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment of the present invention, and FIG. 3 is a block diagram of the present invention. FIG. 4 is a block diagram showing another embodiment of the invention. FIG. 4 is a block diagram showing a color television receiver. 4...Video detection circuit, 5...Color circuit, 10...
Oscillation circuit, 11... Phase variable circuit, 13, 20...
... synthesis circuit, 15 ... variable amplifier, 18 ... burst gate pulse generation circuit, 19 ... color signal removal circuit, S1 to S3 ... switch.
Claims (1)
する色差信号をユーザー操作で調整可能にした色
度処理回路であつて、 色副搬送波の周波数と同一周波数の発振出力を
出力する発振回路と、 前記発振出力の位相及びレベルをユーザー操作
に基づいて変化させる位相可変手段と、 前記色回路からのバーストゲートパルスにより
制御され、前記カラーテレビジヨン受像機に白黒
映像信号が与えられている場合又はカラー映像を
表示させない場合には、バーストゲートパルス期
間以外の期間に前記位相可変手段の出力を色回路
に与えバーストゲートパルス期間に前記発振出力
を色回路に与え、前記カラーテレビジヨン受像機
に与えられているカラー映像に基づいた画像を表
示させる場合には、バーストゲートパルス期間以
外の期間において前記位相可変手段の出力を色回
路に入力されている搬送色信号に合成して色回路
に与える色信号供給手段とを具備したことを特徴
とする色度処理回路。 (2) ビデオ信号を入力しバーストゲートパルス
を発生するバーストゲートパルス発生回路と、 前記ビデオ信号の色信号成分を除去する色信号
除去回路と、 色副搬送波の周波数と同一周波数の発振出力を
出力する発振回路と、 前記発振出力の位相及びレベルをユーザー操作
に基づいて変化させる位相可変手段と、 前記バーストゲートパルス発生回路からのバー
ストゲートパルスにより制御され、バーストゲー
トパルス期間には前記ビデオ信号をそのまま出力
しバーストゲートパルス期間以外の期間には前記
位相可変手段の出力を前記ビデオ信号と合成して
出力する第１の合成手段と、 前記色信号除去回路の出力と前記第１の合成手
段の出力とを合成して出力する第２の合成手段と
を具備したことを特徴とする色度処理回路。[Scope of Claim for Utility Model Registration] (1) A chromaticity processing circuit that allows user operation to adjust the color difference signal output by the color circuit of a color television receiver, which oscillates at the same frequency as the color subcarrier frequency. an oscillation circuit that outputs an output; a phase variable means that changes the phase and level of the oscillation output based on a user operation; and a monochrome video signal controlled by a burst gate pulse from the color circuit to send a monochrome video signal to the color television receiver. is given or when a color image is not displayed, the output of the phase variable means is given to the color circuit during a period other than the burst gate pulse period, the oscillation output is given to the color circuit during the burst gate pulse period, and the output of the phase variable means is given to the color circuit during the burst gate pulse period, When displaying an image based on a color image given to a color television receiver, the output of the phase variable means is combined with the carrier color signal input to the color circuit in a period other than the burst gate pulse period. 1. A chromaticity processing circuit, comprising: means for supplying a color signal to a color circuit. (2) a burst gate pulse generation circuit that inputs a video signal and generates a burst gate pulse; a color signal removal circuit that removes the color signal component of the video signal; and outputs an oscillation output with the same frequency as the color subcarrier frequency. an oscillation circuit that changes the phase and level of the oscillation output based on a user's operation; and a phase variable means that changes the phase and level of the oscillation output based on a user operation; a first synthesizing means that outputs the output as is and combines the output of the phase variable means with the video signal during periods other than the burst gate pulse period, and outputs the combined output of the phase variable means with the video signal; 2. A chromaticity processing circuit comprising: a second compositing means for composing and outputting a chromaticity processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4097389U JPH02133078U (en) | 1989-04-10 | 1989-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4097389U JPH02133078U (en) | 1989-04-10 | 1989-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02133078U true JPH02133078U (en) | 1990-11-05 |
Family
ID=31551237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4097389U Pending JPH02133078U (en) | 1989-04-10 | 1989-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02133078U (en) |
-
1989
- 1989-04-10 JP JP4097389U patent/JPH02133078U/ja active Pending
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