JPS5939417U - Video tape recorder audio circuit - Google Patents
Video tape recorder audio circuitInfo
- Publication number
- JPS5939417U JPS5939417U JP13704282U JP13704282U JPS5939417U JP S5939417 U JPS5939417 U JP S5939417U JP 13704282 U JP13704282 U JP 13704282U JP 13704282 U JP13704282 U JP 13704282U JP S5939417 U JPS5939417 U JP S5939417U
- Authority
- JP
- Japan
- Prior art keywords
- command signal
- terminal
- video tape
- tape recorder
- audio circuit
- 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
Landscapes
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は音声回路の回路図、第２図は第１図中で使用さ
れているＩＣ（Ｑ□）の端子１４の電圧変化とＩＣの状
態変化を説明する図である。
主な図番の説明、Ｑ□・・・集積回路、Ｈ・・・記録／
再生ヘッド、Ｔｒｌ・・・トランジスタ（第２スイツチ
素子）、Ｔｒ２．Ｔｒ３・・・トランジスタ（第１スイ
ツチ素子）、Ｄ３・・・ダイオード。FIG. 1 is a circuit diagram of an audio circuit, and FIG. 2 is a diagram illustrating changes in voltage at terminal 14 of the IC (Q□) used in FIG. 1 and changes in the state of the IC. Explanation of main drawing numbers, Q□...Integrated circuit, H...Record/
Reproducing head, Trl...transistor (second switch element), Tr2. Tr3...Transistor (first switch element), D3...Diode.
Claims (1)
１端子に接続される再生用入力と、前記第２端子に接続
される記録用出力と、制御信号入力とを備え、制御信号
の電圧レベルに応じて再生状態、ミュート状態、記録状
態となる集積回路と、ビデオテープレコーダーの動作モ
ードに応じて再生指令信号と記録指令信号とミュート指
令信号とを出力するシステムコントロール回路と、前記
再生指令信号をうけるか又は前記記録指令信号のない状
態をうけて前記第２端子を接地する第１スイツチ素子と
、前記記録指令信号をうけるか又は前記再生指令信号の
ない状態をうけて前記第１端子を接地する第２スイツチ
素子と、 前記ミュート指令信号と前記再生指令信号及び前記記録
指令信号のうち少なくとも１方の指令信号を入として前
記制御信号を作成する制御信号作成回路とよりなるビデ
オテープレコーダーの音声回路において、新たに前記ミ
ュート指令信号を前記第２スイツチ素子に印加する手段
を設けて前記ミュート指令信号により前記第１端子を接
地することを特徴とするビデオテープレコーダーの音声
回路。[Claims for Utility Model Registration] A recording/playback head comprising first and second terminals, a playback input connected to the first terminal, a recording output connected to the second terminal, and a control signal. an integrated circuit that outputs a play command signal, a record command signal, and a mute command signal according to the operating mode of the video tape recorder; a system control circuit that grounds the second terminal upon receiving the reproduction command signal or in the absence of the recording command signal; a second switch element that grounds the first terminal in response to a state in which the mute command signal is off, and a control that generates the control signal by inputting at least one of the mute command signal, the reproduction command signal, and the record command signal. In the audio circuit of a video tape recorder comprising a signal generating circuit, means is provided for newly applying the mute command signal to the second switch element, and the first terminal is grounded by the mute command signal. Video tape recorder audio circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13704282U JPS5939417U (en) | 1982-09-08 | 1982-09-08 | Video tape recorder audio circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13704282U JPS5939417U (en) | 1982-09-08 | 1982-09-08 | Video tape recorder audio circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5939417U true JPS5939417U (en) | 1984-03-13 |
Family
ID=30307935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13704282U Pending JPS5939417U (en) | 1982-09-08 | 1982-09-08 | Video tape recorder audio circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939417U (en) |
-
1982
- 1982-09-08 JP JP13704282U patent/JPS5939417U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5939417U (en) | Video tape recorder audio circuit | |
| JPS6031721U (en) | tape recorder | |
| JPS5942513U (en) | Switching noise prevention circuit for magnetic recording and reproducing equipment | |
| JPS60142808U (en) | Muting circuit | |
| JPS61382U (en) | automatic editing device | |
| JPS60173106U (en) | audio equipment | |
| JPS5966912U (en) | Recording muting circuit | |
| JPS58131443U (en) | tape recorder | |
| JPS5859213U (en) | sound equipment | |
| JPS59135510U (en) | Tape recorder recording/playback switching circuit | |
| JPS5860343U (en) | Video tape recorder muting device | |
| JPS60166820U (en) | tape recorder | |
| JPS59145732U (en) | Tape recorder control circuit | |
| JPS59189752U (en) | VTR audio signal recording device | |
| JPS58114539U (en) | playback device | |
| JPS6118684U (en) | Video recording and playback device | |
| JPS5865617U (en) | magnetic recording and reproducing device | |
| JPS5830919U (en) | playback device | |
| JPS5950009U (en) | tape recorder | |
| JPS5942547U (en) | Tape recorder muting circuit | |
| JPS59149296U (en) | data recorder | |
| JPS58173019U (en) | Recording/playback switching circuit | |
| JPS5939497U (en) | Control signal generation circuit | |
| JPS59157209U (en) | tape recorder | |
| JPS60142836U (en) | Tape recorder music selection operation circuit |