JPS60185246A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS60185246A
JPS60185246A JP4111084A JP4111084A JPS60185246A JP S60185246 A JPS60185246 A JP S60185246A JP 4111084 A JP4111084 A JP 4111084A JP 4111084 A JP4111084 A JP 4111084A JP S60185246 A JPS60185246 A JP S60185246A
Authority
JP
Japan
Prior art keywords
speed
motor
reproducing
driving
capstan
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
Application number
JP4111084A
Other languages
Japanese (ja)
Inventor
Kunihiko Hara
邦彦 原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4111084A priority Critical patent/JPS60185246A/en
Publication of JPS60185246A publication Critical patent/JPS60185246A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a magnetic tape from being slackened at the time of transfer to a high speed reproducing state or a high speed reverse reproducing state by driving a capstan motor at a speed slower than a high rotational speed only for a previously fixed period, then driving the capstan motor at the prescribed high rotational speed. CONSTITUTION:When a high speed reproducing switch is depressed at a time t1 in a motor driving type magnetic recording and reproducing device having a motor for driving a capstan shaft and a motor for driving independently a reel board, the capstan motor is rotated at a speed of 1/3 of a reproducing high speed NC during a time T1 by a motor control circuit and a timer circuit, and then rotated at a prescribed speed NC for high speed reproducing. On the other hand, a winding motor is immediately set up to a prescribed high reproducing speed by depressing a high speed reproducing switch. Thus, the influence of the delay of rotational rise of the winding reel motor is reduced by setting up the time T1 and controlling the motor speed and the slack of the tape at the transfer can be reduced.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はキャプスタン軸を駆動するモーターとリール台
を駆動するそれぞれ独立したモークーを有するモーター
駆動方式の磁気記録再生装置ヒ1に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a motor-driven magnetic recording and reproducing apparatus H1 having a motor for driving a capstan shaft and an independent motor for driving a reel stand.

従来例の構成とその問題点 一般に上記方式のビデオテープレコーダーにおいては、
通常再生から高速再生を行なう場合キャプスタンモータ
ーの回転速度を上け、巻取リール台に直結したリールモ
ーターの回転をキャプスタンモーターの回転速度の増加
に伴ない上げる方式を取る。また高速逆再生を行なう場
合、−担ギャプスタンを停止させ、キャプスタンを高速
逆回転させ、その回転速度の増加に伴ない供給リールの
回転を上ける方式を収っている。この場合、キャプスタ
ンモーターの速度の立上がりに対し、リールモーターの
速度の立上がりは、リール台およびカセノ1−八ブ、磁
気テープの質茸1等の慣性が大きいため、遅れる。その
ため、高速再生および高速道ゼ]生時の移行爾後の過渡
的現象として、テープのタルシミか生じる。テープのク
ルシミにより、各テープガイ1−′よりテープかはずれ
る恐れがあり、また稠生画に乱れか生じる恐れかある、 発明の目的 本発明はこのような点に鑑み、前記欠点を解決した磁気
記録再生装置を提供するものである。
Conventional configuration and its problems Generally, in the above-mentioned video tape recorder,
When performing high-speed playback from normal playback, the rotation speed of the capstan motor is increased, and the rotation of the reel motor directly connected to the take-up reel stand is increased in accordance with the increase in the rotation speed of the capstan motor. In addition, when high-speed reverse playback is to be performed, a system is adopted in which the carrier gap stan is stopped, the capstan is rotated in reverse at high speed, and the rotation of the supply reel is increased as the rotation speed increases. In this case, the rise in speed of the reel motor is delayed with respect to the rise in speed of the capstan motor because of the large inertia of the reel stand, the cassette tape 1-8, the magnetic tape holder 1, etc. As a result, tape stains occur as a transient phenomenon after high-speed playback and high-speed playback. Due to the smudges on the tape, there is a risk that the tape may come off from each tape guy 1-', and there is also a risk that the image may be disturbed.Object of the Invention In view of these points, the present invention provides a magnetic recording medium that solves the above-mentioned drawbacks. The present invention provides a playback device.

発明の構成 本発明の磁気記録再生装置は、ギヤプスクン駆動モータ
ーと、巻取リール駆動モータ□−ど、供給リール駆動モ
ーターとを有し、高速逆生状態捷たは高速逆再生状態へ
の移行時に、前記巻取リール駆動モーターまたは供給リ
ール駆動モーターは予じめ定められた所定の高速回転速
度にて駆動を開始するが、前記キャプスタンモーターは
、予じめ定められた期間だけ予じめ定められた高速回転
速度より遅い速度で駆動した後に前記の定められた高速
回転速度で回転駆動することを特徴とする。
Composition of the Invention The magnetic recording and reproducing apparatus of the present invention includes a gap drive motor, a take-up reel drive motor, and a supply reel drive motor, and when transitioning to a high-speed reverse playback state or a high-speed reverse playback state, , the take-up reel drive motor or the supply reel drive motor starts driving at a predetermined high speed rotation speed, and the capstan motor starts driving at a predetermined high speed for a predetermined period of time. It is characterized in that it is driven at a speed slower than the predetermined high rotation speed and then rotated at the predetermined high rotation speed.

実施例の説明 以下本発明を図示の実施例に基づいて説明する。Description of examples The present invention will be explained below based on illustrated embodiments.

時刻t、に高速再生スイッチを押すとモーター制御回路
とタイマー回路によって、キャプスタンモーターは、第
3図のaにT1の記号で示す時間、高速再生時の速度N
cの晃の速度で回転し、その後高速再生所定Ncの速度
となる。
When the high-speed regeneration switch is pressed at time t, the capstan motor is controlled by the motor control circuit and the timer circuit to maintain the speed N during high-speed regeneration for the time indicated by the symbol T1 in a of Fig. 3.
It rotates at a speed of Nc, and then reaches a speed of a predetermined high-speed reproduction Nc.

一方巻取リールモーターは、高速再生スイッチを押すと
、第3図のbに示すようにすぐに高速再生時の速度NR
となる。上記T1の時間を設ける事により、巻取リール
モーターの回+Viの立上がりの遅れの影響を軽減し、
移行時のチーブタルミを軽減する。この時の実際のキャ
プスタンモーターおよび巻取リールモーターの速度の変
化を第1図に示す。また通常の再生時から高速逆再生へ
の移行時には、高速逆再生スイッチ操作により、キャプ
スタンモーター、巻取リールモーター、供給リールモー
ターは一担停止し、第3図のaに示すようにキャプスタ
ンモーターは高速逆再生速度NcのIAの速度で12の
時間駆動され、その後、所定の速度NOで回転する。ま
た供給リールモーターは、高速逆再生速度NRで回転す
る。」二記T2の時間を設ける事によりリールモーター
の回転の立上がりの遅れの影響を軽減し、移行時のチー
ブタルミおよび画像の乱れを軽減する。この時の実際の
キャプスタンモーターおよび供給リールモーターの速度
の変化を第4図a、bに示す。
On the other hand, when the high-speed regeneration switch is pressed, the take-up reel motor immediately returns to the speed NR during high-speed regeneration, as shown in Figure 3b.
becomes. By providing the above-mentioned time T1, the influence of the delay in the rise of the take-up reel motor times +Vi is reduced,
Reduces sagging during transition. Fig. 1 shows the actual speed changes of the capstan motor and take-up reel motor at this time. In addition, when transitioning from normal playback to high-speed reverse playback, the capstan motor, take-up reel motor, and supply reel motor are temporarily stopped by operating the high-speed reverse playback switch, and the capstan motor, take-up reel motor, and supply reel motor are stopped, as shown in Figure 3a. The motor is driven for 12 hours at a speed IA with a high reverse playback speed Nc, and then rotates at a predetermined speed NO. The supply reel motor also rotates at a high reverse playback speed NR. By providing the time T2 in Section 2, the influence of the delay in the start-up of the rotation of the reel motor is reduced, and the sagging and image disturbance at the time of transition are reduced. Actual speed changes of the capstan motor and supply reel motor at this time are shown in FIGS. 4a and 4b.

発明の効果 以上のように、本発明によれば、高速再生状態または高
速逆再生状態への移行時に、磁気テープにクルシミが生
じることなく円滑な移行が望めるものである。
Effects of the Invention As described above, according to the present invention, a smooth transition to a high-speed playback state or a high-speed reverse playback state can be expected without causing creases on the magnetic tape.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例の磁気記録再生装置における
キャプスタンモーターと巻取リールモーターの回転速度
の関係を示す図、第2図は同面モーターの実際の回転速
度の関係を示す図、第3図は同実施例におけるキャプス
タンモーターと供給リール七〜グーの回転速度の関係を
示す図、第4図は同実施例における実際のキャプスタン
モーターと供給リールモークーの回転速度の関係を示す
図である。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
FIG. 1 is a diagram showing the relationship between the rotational speeds of the capstan motor and the take-up reel motor in a magnetic recording/reproducing apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram showing the relationship between the actual rotational speeds of the same-plane motor. , Fig. 3 is a diagram showing the relationship between the rotational speeds of the capstan motor and the supply reels 7 to 7 in the same embodiment, and Fig. 4 is a diagram showing the relationship between the actual rotational speeds of the capstan motor and the supply reel Moku in the same embodiment. It is a diagram. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

【特許請求の範囲】[Claims] キャブズクン駆動モーターと、巻取リール駆動モーター
と、供給リール駆動モーターとを有し、高速逆生状態寸
たは高速逆再生状態への移行峙に、前記巻取リール駆動
モーターまたは供給リール駆動モーターは予じめ定めら
れた所定の高速回転速度にて駆動を開始するが、前記キ
ャプスタンモーターは、予じめ定められた期間だけ予じ
め定められた高速回転速度より遅い速度で駆動した後に
前記の定められた高速回転速度で回転駆動することを特
徴とする磁気記録再生装置。
It has a cabzukun drive motor, a take-up reel drive motor, and a supply reel drive motor, and when transitioning to a high-speed reverse play state or a high-speed reverse play state, the take-up reel drive motor or the supply reel drive motor The capstan motor starts driving at a predetermined high rotation speed, but after driving at a speed lower than the predetermined high rotation speed for a predetermined period, the capstan motor starts driving at a predetermined high rotation speed. A magnetic recording/reproducing device characterized in that it is rotatably driven at a predetermined high rotational speed.
JP4111084A 1984-03-02 1984-03-02 Magnetic recording and reproducing device Pending JPS60185246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4111084A JPS60185246A (en) 1984-03-02 1984-03-02 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4111084A JPS60185246A (en) 1984-03-02 1984-03-02 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS60185246A true JPS60185246A (en) 1985-09-20

Family

ID=12599334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4111084A Pending JPS60185246A (en) 1984-03-02 1984-03-02 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS60185246A (en)

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