JPS6098983U - Chroma signal recording/reproducing circuit - Google Patents
Chroma signal recording/reproducing circuitInfo
- Publication number
- JPS6098983U JPS6098983U JP19204483U JP19204483U JPS6098983U JP S6098983 U JPS6098983 U JP S6098983U JP 19204483 U JP19204483 U JP 19204483U JP 19204483 U JP19204483 U JP 19204483U JP S6098983 U JPS6098983 U JP S6098983U
- Authority
- JP
- Japan
- Prior art keywords
- chroma signal
- reproducing circuit
- signal recording
- addition
- input terminal
- 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
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図と第２図は従来のクロマサイドバンドのエンファ
シスとディエンファシス用の回路例ヲ示すブロック図、
第３図は従来の回路における欠点を説明するための回路
図、第４図はこの考案の一実施例を示す回路図、第５図
は第４図の回路に用いられる加算器と位相反転回路の一
具体例を示す回路図である。
１・・・・・・フィルタ、２・・・・・・リミッタアン
プ、４・・・・・・加算器、１１・・・・・・位相反転
回路、１２，１３・・・・・・切換スイッチ。Figures 1 and 2 are block diagrams showing examples of conventional chroma sideband emphasis and de-emphasis circuits;
Figure 3 is a circuit diagram for explaining the drawbacks of the conventional circuit, Figure 4 is a circuit diagram showing an embodiment of this invention, and Figure 5 is an adder and phase inversion circuit used in the circuit of Figure 4. FIG. 2 is a circuit diagram showing a specific example. 1...Filter, 2...Limiter amplifier, 4...Adder, 11...Phase inversion circuit, 12, 13...Switching switch.
Claims (1)
力を位相反転する位相反転手段と、クロマ信号のサイド
バンドを抽出するフィルタとリミッタとを有しその出力
側が加算手段の一方の入力端子に接続された抽出手段と
、記録時にはクロマ信号を上記抽出手段の入力側と加算
手段の他方の入力端子に印加するとともに、再生時には
反転手段の出力を抽出手段の入力端子に印加するととも
に再生すべきクロマ信号を上記加算手段の他方に入力す
るように切り換える切換手段とを備えたことを特徴とす
るクロマ信号記録再生回路。an addition means; a phase inversion means connected to the output side of the addition means for inverting the phase of the output of the addition means; and a filter and a limiter for extracting sidebands of the chroma signal, the output side of which is one input terminal of the addition means. an extraction means connected to the extraction means; during recording, the chroma signal is applied to the input side of the extraction means and to the other input terminal of the addition means; during reproduction, the output of the inversion means is applied to the input terminal of the extraction means; A chroma signal recording/reproducing circuit comprising: switching means for switching to input the chroma signal to the other of the adding means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19204483U JPS6098983U (en) | 1983-12-12 | 1983-12-12 | Chroma signal recording/reproducing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19204483U JPS6098983U (en) | 1983-12-12 | 1983-12-12 | Chroma signal recording/reproducing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6098983U true JPS6098983U (en) | 1985-07-05 |
Family
ID=30413397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19204483U Pending JPS6098983U (en) | 1983-12-12 | 1983-12-12 | Chroma signal recording/reproducing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6098983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281508A (en) * | 1986-05-30 | 1987-12-07 | Hitachi Ltd | Signal processor |
-
1983
- 1983-12-12 JP JP19204483U patent/JPS6098983U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281508A (en) * | 1986-05-30 | 1987-12-07 | Hitachi Ltd | Signal processor |
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