JPS6261058U - - Google Patents
Info
- Publication number
- JPS6261058U JPS6261058U JP15167685U JP15167685U JPS6261058U JP S6261058 U JPS6261058 U JP S6261058U JP 15167685 U JP15167685 U JP 15167685U JP 15167685 U JP15167685 U JP 15167685U JP S6261058 U JPS6261058 U JP S6261058U
- Authority
- JP
- Japan
- Prior art keywords
- frequency component
- circuit
- output
- low
- pass filter
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims 2
- 230000001629 suppression Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は実施例の回路ブロツク図、第２図、第
３図は動作説明のための説明図、第４図は従来例
の回路ブロツク図、第５図は従来例の欠点を示す
説明図である。
１０……ハイパスフイルタ、１２……ロウパス
フイルタ、１３……第１リミツタ増幅回路、１４
……レベル検波回路、１５……レベルコントロー
ル増幅回路、１７……混合回路、１８……第２リ
ミツタ増幅回路。
Fig. 1 is a circuit block diagram of the embodiment, Figs. 2 and 3 are explanatory diagrams for explaining the operation, Fig. 4 is a circuit block diagram of the conventional example, and Fig. 5 is an explanatory diagram showing the drawbacks of the conventional example. It is. 10... High pass filter, 12... Low pass filter, 13... First limiter amplifier circuit, 14
... Level detection circuit, 15 ... Level control amplifier circuit, 17 ... Mixing circuit, 18 ... Second limiter amplifier circuit.
Claims (1)
媒体を再生して、再生信号より高域成分を取り出
すハイパスフイルタと、前記再生信号より低域成
分を取り出すロウパスフイルタと、前記ハイパス
フイルタ出力を入力とする第１リミツタ増幅回路
と、前記高域成分の存在を検する高域成分検出回
路と、前記高域成分検出回路出力に基づき前記低
域成分のレベルを実質的に低下せしめる低域成分
抑圧回路と、前記第１リミツタ増幅回路出力と低
域成分抑圧回路出力を混合する混合回路と、前記
混合回路出力を入力とする第２リミツタ増幅回路
とよりなるリミツタ増幅回路。 A high-pass filter that reproduces a recording medium on which an FM-modulated video signal is recorded and extracts high-frequency components from the reproduced signal, a low-pass filter that extracts low-frequency components from the reproduced signal, and inputs the output of the high-pass filter. a first limiter amplifier circuit that detects the presence of the high frequency component, a high frequency component detection circuit that detects the presence of the high frequency component, and a low frequency component suppression circuit that substantially reduces the level of the low frequency component based on the output of the high frequency component detection circuit. a mixing circuit that mixes the output of the first limiter amplifier circuit and the output of the low-frequency component suppression circuit; and a second limiter amplifier circuit that receives the output of the mixing circuit as an input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15167685U JPS6261058U (en) | 1985-10-03 | 1985-10-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15167685U JPS6261058U (en) | 1985-10-03 | 1985-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6261058U true JPS6261058U (en) | 1987-04-15 |
Family
ID=31068961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15167685U Pending JPS6261058U (en) | 1985-10-03 | 1985-10-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6261058U (en) |
-
1985
- 1985-10-03 JP JP15167685U patent/JPS6261058U/ja active Pending
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