JPS61118103U - - Google Patents
Info
- Publication number
- JPS61118103U JPS61118103U JP19947884U JP19947884U JPS61118103U JP S61118103 U JPS61118103 U JP S61118103U JP 19947884 U JP19947884 U JP 19947884U JP 19947884 U JP19947884 U JP 19947884U JP S61118103 U JPS61118103 U JP S61118103U
- Authority
- JP
- Japan
- Prior art keywords
- audio component
- playback signal
- removal circuit
- circuit
- audio
- 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
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の一実施例によるＨｉ―Ｆｉ音
声成分除去回路の回路図、第２図はＨｉ―Ｆｉ方
式の周波数スペクトラムを示す図、第３図は非Ｈ
ｉ―Ｆｉ方式ビデオテープレコーダにおける再生
部の概略的構成と、そこで使用される従来のＨｉ
―Ｆｉ音声成分除去回路の構成を示すブロツク回
路図、および第４図は非Ｈｉ―Ｆｉ方式の周波数
スペクトラムを示す図である。
１……入力端子、２……バツフアアンプ、３…
…コイル、４……キヤパシタ、５……ダイオード
、６，７……抵抗器、８……コイル、９……キヤ
パシタ、１０……スイツチングトランジスタ、１
１……出力端子、１２……キヤパシタ。
Fig. 1 is a circuit diagram of a Hi-Fi audio component removal circuit according to an embodiment of the present invention, Fig. 2 is a diagram showing the frequency spectrum of the Hi-Fi method, and Fig. 3 is a diagram showing the frequency spectrum of the Hi-Fi method.
Schematic configuration of the playback unit in an i-Fi video tape recorder and the conventional Hi-Fi used therein
4 is a block circuit diagram showing the configuration of a -Fi audio component removal circuit, and FIG. 4 is a diagram showing a frequency spectrum of a non-Hi-Fi system. 1...Input terminal, 2...Buffer amplifier, 3...
... Coil, 4 ... Capacitor, 5 ... Diode, 6, 7 ... Resistor, 8 ... Coil, 9 ... Capacitor, 10 ... Switching transistor, 1
1... Output terminal, 12... Capacitor.
Claims (1)
ｉ音声成分を除去する非Ｈｉ―Ｆｉ方式ビデオテ
ープレコーダのＨｉ―Ｆｉ音声成分除去回路にお
いて、 前記再生信号を受け取り、前記Ｈｉ―Ｆｉ音声
成分を前記再生信号から抜き取る帯域除去回路と
、 前記帯域除去回路の前記Ｈｉ―Ｆｉ音声成分を
抜き取る経路に設けられたスイツチ手段と、 前記再生信号の中に前記Ｈｉ―Ｆｉ音声成分が
含まれているかどうかを判別し、前記Ｈｉ―Ｆｉ
音声成分が含まれているときだけ前記スイツチ手
段をオンにする手段と、 を備えることを特徴とするＨｉ―Ｆｉ音声成分除
去回路。[Scope of claim for utility model registration] Hi-F from the playback signal obtained from the video head
i A Hi-Fi audio component removal circuit for a non-Hi-Fi video tape recorder that removes an audio component includes: a band removal circuit that receives the playback signal and extracts the Hi-Fi audio component from the playback signal; a switch means provided in a path for extracting the Hi-Fi audio component of the circuit;
A Hi-Fi audio component removal circuit comprising: means for turning on the switch means only when audio components are included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19947884U JPS61118103U (en) | 1984-12-29 | 1984-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19947884U JPS61118103U (en) | 1984-12-29 | 1984-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61118103U true JPS61118103U (en) | 1986-07-25 |
Family
ID=30759440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19947884U Pending JPS61118103U (en) | 1984-12-29 | 1984-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61118103U (en) |
-
1984
- 1984-12-29 JP JP19947884U patent/JPS61118103U/ja active Pending
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