JPS6230478U - - Google Patents
Info
- Publication number
- JPS6230478U JPS6230478U JP11980185U JP11980185U JPS6230478U JP S6230478 U JPS6230478 U JP S6230478U JP 11980185 U JP11980185 U JP 11980185U JP 11980185 U JP11980185 U JP 11980185U JP S6230478 U JPS6230478 U JP S6230478U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- frequency
- circuit
- flop
- flip
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第1図は本考案の一実施例の要部のブロツク図
、第2図は動作説明に供するタイムチヤートであ
る。
1……キヤプスタンモータ、18……回転検出
パルス発生器、9……分周回路、10……位相制
御回路、11……出力回路。
FIG. 1 is a block diagram of a main part of an embodiment of the present invention, and FIG. 2 is a time chart for explaining the operation. DESCRIPTION OF SYMBOLS 1... Capstan motor, 18... Rotation detection pulse generator, 9... Frequency division circuit, 10... Phase control circuit, 11... Output circuit.
Claims (1)
再生時には、垂直同期周波数の整数n倍の周波数
の回転検出パルスを発生させる回転検出パルス発
生器と、 前記回転検出パルスを1/nに分周して分周パ
ルスを出力する分周回路と、 通常再生時に分周パルスの位相を垂直同期信号
の位相と一定の関係になるように位相制御する位
相制御回路と、 キヤプスタンモータを間欠駆動させてコマ送り
あるいはスローモーシヨン再生を行なうための駆
動信号を前記分周パルスに基づいて形成出力する
出力回路とを備えることを特徴とする8ミリビデ
オテープレコーダ。 (2) 前記移送制御回路は、通常再生時にのみヘ
ツドスイツチングパルスに同期したリセツト信号
を前記分周回路に出力して分周回路をリセツトす
るものである前記実用新案登録請求の範囲第1項
記載の8ミリビデオテープレコーダ。 (3) 前記出力回路は、フリツプフロツプと、コ
マ送りあるいはスローモーシヨン再生のモードを
指定するモード指定信号に応答してフリツプフロ
ツプをセツト状態にする一定周期のトリガパルス
を発生させるトリガ回路と、分周パルスに応答し
て所定時間経過後にフリツプフロツプをリセツト
状態にする単案定マルチバイブレータとを含む前
記実用新案登録請求の範囲第1項または第2項記
載の8ミリビデオテープレコーダ。[Claims for Utility Model Registration] (1) A rotation detection pulse generator that generates a rotation detection pulse having a frequency that is an integral number n times the vertical synchronization frequency during normal reproduction as the capstan motor rotates; A frequency divider circuit that divides the detected pulse by 1/n and outputs the divided pulse, and a phase control circuit that controls the phase of the divided pulse so that it has a constant relationship with the phase of the vertical synchronization signal during normal playback. and an output circuit that forms and outputs a drive signal for intermittently driving a capstan motor to perform frame advance or slow motion playback based on the frequency divided pulse. (2) The transfer control circuit resets the frequency dividing circuit by outputting a reset signal synchronized with the head switching pulse to the frequency dividing circuit only during normal reproduction. The 8mm video tape recorder described. (3) The output circuit includes a flip-flop, a trigger circuit that generates a trigger pulse of a constant period to set the flip-flop in response to a mode designation signal that designates frame-by-frame or slow-motion playback mode, and a frequency-divided pulse. 3. The 8 mm video tape recorder according to claim 1, further comprising a single-direction multivibrator which resets the flip-flop after a predetermined period of time in response to the lapse of a predetermined period of time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985119801U JPH0526866Y2 (en) | 1985-08-02 | 1985-08-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985119801U JPH0526866Y2 (en) | 1985-08-02 | 1985-08-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6230478U true JPS6230478U (en) | 1987-02-24 |
JPH0526866Y2 JPH0526866Y2 (en) | 1993-07-07 |
Family
ID=31007515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985119801U Expired - Lifetime JPH0526866Y2 (en) | 1985-08-02 | 1985-08-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0526866Y2 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5334163A (en) * | 1976-09-10 | 1978-03-30 | Sanyo Electric Co Ltd | Refrigerator |
JPS5686084A (en) * | 1979-11-15 | 1981-07-13 | Rca Corp | Motor speed control circuit |
JPS5717285A (en) * | 1980-07-04 | 1982-01-28 | Matsushita Electric Ind Co Ltd | Slow motion reproducing method |
JPS57104671U (en) * | 1980-12-18 | 1982-06-28 | ||
JPS58212647A (en) * | 1982-06-04 | 1983-12-10 | Matsushita Electric Ind Co Ltd | Video tape recorder |
JPS60119800A (en) * | 1983-11-30 | 1985-06-27 | 明治ナシヨナル工業株式会社 | Method of cutting lead of electronic part |
-
1985
- 1985-08-02 JP JP1985119801U patent/JPH0526866Y2/ja not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5334163A (en) * | 1976-09-10 | 1978-03-30 | Sanyo Electric Co Ltd | Refrigerator |
JPS5686084A (en) * | 1979-11-15 | 1981-07-13 | Rca Corp | Motor speed control circuit |
JPS5717285A (en) * | 1980-07-04 | 1982-01-28 | Matsushita Electric Ind Co Ltd | Slow motion reproducing method |
JPS57104671U (en) * | 1980-12-18 | 1982-06-28 | ||
JPS58212647A (en) * | 1982-06-04 | 1983-12-10 | Matsushita Electric Ind Co Ltd | Video tape recorder |
JPS60119800A (en) * | 1983-11-30 | 1985-06-27 | 明治ナシヨナル工業株式会社 | Method of cutting lead of electronic part |
Also Published As
Publication number | Publication date |
---|---|
JPH0526866Y2 (en) | 1993-07-07 |
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