JPH02103984U - - Google Patents
Info
- Publication number
- JPH02103984U JPH02103984U JP1322589U JP1322589U JPH02103984U JP H02103984 U JPH02103984 U JP H02103984U JP 1322589 U JP1322589 U JP 1322589U JP 1322589 U JP1322589 U JP 1322589U JP H02103984 U JPH02103984 U JP H02103984U
- Authority
- JP
- Japan
- Prior art keywords
- color
- circuit
- color noise
- television receiver
- difference signal
- 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
- 230000001629 suppression Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例を示す図、第２図は
その信号波形図、第３図はその他の実施例を示す
図、第４図はその信号波形図、第５図はその他の
実施例を示す図、第６図は従来例を示す図、第７
図はＳＥＣＡＭ方式における垂直ブランキング期
間の信号波形図、第８図は従来例の信号波形図で
ある。
１６……カラーノイズ抑制回路、２４……カラ
ーゲインコントロール端子、２４……限定回路、
２６……スイツチングトランジスタ。
Fig. 1 is a diagram showing one embodiment of the present invention, Fig. 2 is a signal waveform diagram thereof, Fig. 3 is a diagram showing another embodiment, Fig. 4 is a signal waveform diagram thereof, and Fig. 5 is a diagram showing other embodiments. FIG. 6 is a diagram showing a conventional example; FIG. 7 is a diagram showing an example.
The figure is a signal waveform diagram during the vertical blanking period in the SECAM system, and FIG. 8 is a signal waveform diagram of a conventional example. 16...Color noise suppression circuit, 24...Color gain control terminal, 24...Limited circuit,
26...Switching transistor.
Claims (1)
るカラーノイズを検出して、そのカラーノイズを
抑制するよう色差信号のゲインコントロールを行
なわせるカラーノイズ抑制回路を備えたテレビジ
ヨン受像機において、前記カラーノイズ抑制回路
のノイズ検出期間を限定する限定回路を設けたこ
とを特徴とするテレビジヨン受像機。 In a television receiver equipped with a color noise suppression circuit that detects color noise contained in a color difference signal extracted from a composite video signal and performs gain control of the color difference signal to suppress the color noise, the color noise suppression A television receiver characterized by being provided with a limiting circuit that limits the noise detection period of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322589U JPH02103984U (en) | 1989-02-07 | 1989-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322589U JPH02103984U (en) | 1989-02-07 | 1989-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02103984U true JPH02103984U (en) | 1990-08-17 |
Family
ID=31223351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1322589U Pending JPH02103984U (en) | 1989-02-07 | 1989-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02103984U (en) |
-
1989
- 1989-02-07 JP JP1322589U patent/JPH02103984U/ja active Pending