JPS59175052A - Tape driver - Google Patents

Tape driver

Info

Publication number
JPS59175052A
JPS59175052A JP58049234A JP4923483A JPS59175052A JP S59175052 A JPS59175052 A JP S59175052A JP 58049234 A JP58049234 A JP 58049234A JP 4923483 A JP4923483 A JP 4923483A JP S59175052 A JPS59175052 A JP S59175052A
Authority
JP
Japan
Prior art keywords
take
tape
reel
circuit
supply
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
Application number
JP58049234A
Other languages
Japanese (ja)
Other versions
JPH0456375B2 (en
Inventor
Tadashi Yoshino
正 吉野
Masayuki Mamei
豆井　雅之
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 JP58049234A priority Critical patent/JPS59175052A/en
Priority to KR1019830004885A priority patent/KR880000240B1/en
Priority to EP83110361A priority patent/EP0107166B1/en
Priority to US06/543,451 priority patent/US4516740A/en
Priority to DE8383110361T priority patent/DE3375247D1/en
Publication of JPS59175052A publication Critical patent/JPS59175052A/en
Publication of JPH0456375B2 publication Critical patent/JPH0456375B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/32—Driving record carriers by members acting directly or indirectly thereon through the reels or cores on to which the record carrier is wound
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/48—Starting; Accelerating; Decelerating; Arrangements preventing malfunction during drive change
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/54—Controlling, regulating, or indicating speed by stroboscope; by tachometer

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

PURPOSE:To limit the revolutions of a reel motor of the take-up side to reduce the noise by comparing the tape winding diameters between the supply and take- up sides and varying the mixing ratio of revolving information between reels of the supply and take-up sides and controlling the reel motor of the take-up side. CONSTITUTION:The tape winding diameters of both supply and take-up sides are decided by the detected reolving information on reel motors 7 and 8 of the supply and take-up sides obtained by frequency generators 9 and 10. These two tape winding diameters are compared with each other by a tape diameter comparator 21. Based on the result of this comparison, the mixing ratio is controlled for the voltage corresponding to the detected revolving information of motors 7 and 8 obtained by frequency/voltage converting circuits 11 and 12 via a mixing circuit 22. Then a feedback control is given to the motor 8 of the take-up side in accordance with the result of comparison between the reference voltage and the mixed voltage. With this control of mixing ratio, the revolutions of the motor 8 are controlled in a fast forward start mode, etc. Thus the noise is reduced.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はビデオテープレコーダ等におケルテープ駆動装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tape drive device for a video tape recorder or the like.

従来例の構成とその問題点 従来のカセット式ビデオテープレコーダ（以下ＶＴＲと
いう）のＦＦ（早送り）状態において用いられるテープ
駆動装置の概略構成図を第１図に示す。第１図において
、１はテープカセットを示し、２は磁気テープを示す。Conventional Structure and Problems Therein FIG. 1 shows a schematic block diagram of a tape drive device used in the FF (fast forward) state of a conventional cassette video tape recorder (hereinafter referred to as VTR). In FIG. 1, 1 indicates a tape cassette, and 2 indicates a magnetic tape.

３，４は供給側及び巻取側リール軸であってテープカセ
ット１の供給側及び巻取側リール５．６と係合し得るよ
うになされている。７，８はこれら供給側及び巻取（ｔ
ｉｌ＋　リール軸３，４を直接的に駆動する供給側及び
巻取側リールモータである。磁気テープ２はＦ　、Ｆ　
（早送り）時には供給側リール６から巻取側リール６に
巻取られる。９．１０は供給側及び巻取イμｌＩ　！Ｊ
　−ルモータ７，８の回転速度情報を検出す末周波数発
電機（以下ＦＣ，トイう）である０ＦＧ９．１０の出力
信号は供給側及び巻取側周波数−電圧変換回路１１．１
２に入力され、周波数を電圧に変換される。この周波数
−電圧変換回路１１．１２の出力は混合回路１３におい
て、１：１の比率で電圧力１」算され、混合回路１３の
出力は巻取側速度比較回路１４に入力され、速度設定基
準電圧回路１５からの基党電圧と比較され、巻取側速度
比較回路１４の出力が巻取側リールモータ駆動回路１６
に入力され、巻取側リールモータ８が速度制御され、は
ぼ一定のテープ速度で供給側リール５の磁気テプ２は巻
取側リール６に巻取られ、る〇一方、供給側バンクテン
シミ／トルク発生回路１７からの指令電圧が供給側リー
ルモータ駆動回路１８に入力され、供給側リールモータ
７には磁気テープ２に適当なハノクテノションが発生す
るように矢印１９の方向にトルクが発生するような一定
のモータ電流を流している。Reference numerals 3 and 4 denote supply and take-up reel shafts which can be engaged with the supply and take-up reels 5.6 of the tape cassette 1. 7 and 8 are these supply side and winding (t
il+ Supply side and take-up side reel motors that directly drive the reel shafts 3 and 4. Magnetic tape 2 is F, F
(Fast forwarding), the film is wound from the supply reel 6 to the take-up reel 6. 9.10 is the supply side and winding μlI! J
- The output signal of 0FG9.10, which is a low-frequency generator (hereinafter referred to as FC) that detects the rotational speed information of motors 7 and 8, is output from the supply side and winding side frequency-voltage conversion circuit 11.1.
2, and the frequency is converted into voltage. The outputs of the frequency-voltage conversion circuits 11 and 12 are multiplied by voltage power 1 in a mixing circuit 13 at a ratio of 1:1, and the output of the mixing circuit 13 is input to the winding side speed comparison circuit 14, and the speed setting standard is It is compared with the basic voltage from the voltage circuit 15, and the output of the winding side speed comparison circuit 14 is sent to the winding side reel motor drive circuit 16.
is input, the speed of the take-up reel motor 8 is controlled, and the magnetic tape 2 of the supply reel 5 is wound onto the take-up reel 6 at an almost constant tape speed. The command voltage from the torque generation circuit 17 is input to the supply side reel motor drive circuit 18, and the supply side reel motor 7 generates torque in the direction of the arrow 19 so as to generate an appropriate rotation on the magnetic tape 2. A constant motor current is flowing.

す、上の従来例によれば、ＦＦ（早送り）の磁気テープ
速度はほぼ一定であるので、テープ始端部における巻取
側リールモータ８０回転数は非常に速くなるので、この
巻取（１］＋１　リールモータの発生する騒音が問題と
なる。特に巻取１１１１１　リール台を減速機構（歯車
等）を介して巻取側ソールモータで１ヅス動する場合に
は減速機構から発生する１９ｉ音か問題である。According to the above conventional example, since the magnetic tape speed of FF (fast forward) is almost constant, the number of rotations of the take-up reel motor 80 at the beginning of the tape becomes very high. +1 The noise generated by the reel motor becomes a problem.Especially when the take-up 11111 reel table is moved by the sole motor on the take-up side through a deceleration mechanism (gear, etc.), the 19i noise generated from the deceleration mechanism becomes a problem. That's a problem.

発明の目的 本発明はこのような従来の問題点を解決するものであり
、巻取側リールモータの回転数を制限してリールモータ
の発生する騒音を小さくすることを目的とする。OBJECTS OF THE INVENTION The present invention solves these conventional problems, and aims to reduce the noise generated by the reel motor by limiting the number of revolutions of the take-up reel motor.

発明の構成 本発明はＦＦ（早送り）、ＲＥＶ（巻戻し）時に、巻取
ＩＩＩリールモータの回転数を供給側リ−Ｊし及び巻取
側リールに巻装されているテープ径を比較し、磁気テー
プの始端部（または終端部）のテープ速度を遅くし、磁
気テープの中央部でに磁気テープ速度を高速にすること
により、リールモータの発生する騒−音を低くおさえつ
つ、ＦＦ（早送り）、ＲＥＶ　（巻戻し）時間を短縮す
ることかできるテープ駆動装置を提供するものである。Structure of the Invention The present invention compares the rotational speed of the take-up III reel motor on the supply side and the diameter of the tape wound on the take-up reel during FF (fast forwarding) and REV (rewinding). By slowing down the tape speed at the beginning (or end) of the magnetic tape and increasing the tape speed at the center of the magnetic tape, the noise generated by the reel motor can be kept low while FF (fast forwarding) can be achieved. ), the present invention provides a tape drive device that can shorten REV (rewind) time.

実施例の説明 以下本発明の一実施例を図面を参照して説明する。第２
図は本発明の一実施例であるカセット式ＶＴＲ０ＦＦ（
早送り）状態にあるテープ駆動装置の概略構成図である
。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Second
The figure shows a cassette-type VTR0FF (
FIG. 2 is a schematic configuration diagram of a tape drive device in a fast forward state.

第２図において１はテープカセ・ノドを示し、２は磁気
テープを示す。３，４は供給側及び巻取側リール軸であ
って、テープカセット１の供給側及び巻取ｌ１１１１１
Ｊ−ル５，６と係合し得るようになされている。７，８
はこれら供給側及び巻取側リール軸３，４を直接的に駆
動する供給側及び巻取側リールモータである。磁気テー
プ２はＦＦ（早送り）時には供給側リール５から巻取側
１）−／し６に巻取られる。９，１０は供給側及び巻取
側リールモータ７，８の回転、速度情報を検出するＦＣ
である。In FIG. 2, numeral 1 indicates a tape cassette and throat, and numeral 2 indicates a magnetic tape. 3 and 4 are supply side and take-up side reel shafts, which are the supply side and take-up side l11111 of the tape cassette 1.
It is adapted to be able to engage with the J-rules 5 and 6. 7,8
are supply side and take-up side reel motors that directly drive these supply side and take-up side reel shafts 3 and 4. During FF (fast forwarding), the magnetic tape 2 is wound from a supply reel 5 to a take-up reel 1)-/6. 9 and 10 are FCs that detect rotation and speed information of the supply side and take-up side reel motors 7 and 8;
It is.

これらＦＣ９，１０の出力信号は供給側及び巻取側周波
数−電圧変換回路１１．１２に入力され、それぞれ周波
数が電圧に変換される。一方、ＦＣ９，１ｏの出力信号
はテープ径比較回路２１に入力され、その周波数が比較
され供給側及び巻取側リールに巻装されているテープ径
の比較を行い、テープ全体の位置検出を行う。第３図に
テープ径比較回路２１の一実施例のブＯツク図を示踵第
４図に第３図における各部の波形を示し、第５図にテー
プ径比較回路の入出力持ＶＰ、を示す。第３図において
、入力端ｉ３１に巻取（ｉｌｌ　Ｆ　Ｇの出力信号ｓ、
（ｒ、）が入力され、ツｒ　ｆｔメンタ路３５のクロッ
ク入力端子に入力さ外る。まだ入力端子３２に供給側の
Ｆ’Ｇ出力信号Ｓ２（ｆ５）が入力され、２分周回路３
３　Ｋ印加される。λ分周回路３３の出力信号５５（４
パルス作成回路３４に入力され、ラッチ・２ルス信号Ｓ
４とそのラッチパルス信号Ｓ４より若干遅れたリセット
パルス信号Ｓ５を作る。リセット・ぐルス信号Ｓ５はカ
ウンタ回路３５のリセット端子雫人力され、カウンタ回
路３５のカウンタの内容をアナログ的に表示すると信号
Ｓ６のようになる。カウンタ回路３５のカウンタの内容
はランチ回路３６に入力され、ラッチパルス信号Ｓ４で
ラッチされ、ランチ回路３６の出力信号Ｓ７（アナログ
的に表示すると信号Ｓ７のようになる）は判定回路３７
ｖＣおいてディジタル的なしきめ値によυ、テープ全体
の始端部の場合には判定回路３７の出力を、Ｈｉ”レベ
ルに、それ以外の場合には出力ｋ　／／Ｌｏ’レベルに
して１１Ｊ」力端子３８から出力する。供給側及び巻Ｊ
８！側周ｅ数−電圧変換回路１１．１２の出力とテープ
径比較回路２１の出力とが混合回路２２に入力される。The output signals of these FCs 9 and 10 are input to the supply side and winding side frequency-voltage conversion circuits 11 and 12, and the frequencies are converted into voltages, respectively. On the other hand, the output signals of FC9 and FC1o are input to the tape diameter comparison circuit 21, and their frequencies are compared to compare the diameters of the tapes wound on the supply side and take-up side reels, and the position of the entire tape is detected. . FIG. 3 shows a block diagram of an embodiment of the tape diameter comparison circuit 21, FIG. 4 shows the waveforms of various parts in FIG. 3, and FIG. show. In FIG. 3, winding (il F G output signal s,
(r,) is input to the clock input terminal of the t r ft mentor path 35. The F'G output signal S2 (f5) on the supply side is still input to the input terminal 32, and the divide-by-2 circuit 3
3K is applied. Output signal 55 (4
It is input to the pulse generation circuit 34 and the latch/2 pulse signal S
4, and a reset pulse signal S5 slightly delayed from the latch pulse signal S4 is generated. The reset signal S5 is input to the reset terminal of the counter circuit 35, and when the contents of the counter of the counter circuit 35 are displayed in analog form, it becomes a signal S6. The contents of the counter of the counter circuit 35 are input to the launch circuit 36 and latched by the latch pulse signal S4, and the output signal S7 of the launch circuit 36 (signal S7 when expressed in analog form) is sent to the judgment circuit 36.
According to the digital threshold value υ in vC, the output of the determination circuit 37 is set to Hi'' level in the case of the beginning of the entire tape, and otherwise the output is set to Lo' level. output from the power terminal 38. Supply side and volume J
8! The outputs of the side circumference e number/voltage conversion circuits 11 and 12 and the output of the tape diameter comparison circuit 21 are input to a mixing circuit 22.

第６図に混合回路２２の一実施例を示す、、ｌ第６図に
おいて入力端子４１　Ｖｃ供給側周波数−電圧変換回路
１１の出力（ｖ５）を印加し、抵抗４３を介して出力対
１１子４７に接続し、入力節１１子４２に巻取側周波数
−電圧変換回路１２の出力（ｖｌ）を印加し、抵抗４４
及びスイッチ４５を並列に介して出力端子４７に接続し
、入力端子４６にテープ径比較回路２１の出力を印加し
、テープ径比較回路２１の出力が２．Ｈｌ”レベル（テ
ープの始端部）ｔ　　　　　　　の場合にはスイッチ４
５は導通状態とし、出力端子４７ＶＣは巻取側周波数・
−電圧変換回路出力（Ｖ、）をその−１：捷出力し、テ
ープ径比較回路２１の出力が、Ｌｏｗ“レベルの場合に
はスイッチ４５は開放状態とし、出力端子４７には供給
１１ｊ１１及び巻取側周波数−電圧変換回路１１．１２
の出力の平均７Ｌ圧（−！−ｖｓ＋−ｖ、　）を出力す
る（抵抗４３．４４は２　　　　　２ 等しいものとする）。この混合回路２２の出力は巻取側
速度比較回路１４に人力され、速度設定基準電圧回路１
５からの基準電圧と比較され、巻取側速度比較回路１４
の出力か巻取側リールモータ駆動回路１６ｖｃ入力され
、巻取側リールモータ８が速度制御され、第７図に示す
ようにテープ径比較回路２１の出力が／／Ｈ１レベルの
期間（テープ始端部）Ｖこおいては巻取ｆｌｉｌｌ　ｌ
）−ルモータの回転数を一定に制御することによりテー
プ速度は巻取側リールに巻装される磁気テープ径の増加
に伴い）待くなり、テープ径比１ｉ＆回路２１の出力が
１．Ｌｏｗレベルの期間はほぼ一定のテープ速度で、供
給側リール５の磁気テープ２は巻取側リール６に巻取ら
れる。一方、供給側バノクテンンヨントルク発牛回路１
７からの指令電圧が供給イ則リールモータ駆動回路１８
に入力され、供給側リールモータ７Ｖこは磁気テープ２
に適当なバンクテンションが発生するように矢印１９の
方向にトルクが発生するような一定のモータ電流を流し
ている。FIG. 6 shows an embodiment of the mixing circuit 22. In FIG. 47, the output (vl) of the winding side frequency-voltage conversion circuit 12 is applied to the input node 11 child 42, and the resistor 44
and a switch 45 in parallel to the output terminal 47, and the output of the tape diameter comparison circuit 21 is applied to the input terminal 46, so that the output of the tape diameter comparison circuit 21 becomes 2. Hl” level (starting end of tape) t, switch 4
5 is in a conductive state, and the output terminal 47VC is the winding side frequency.
- The voltage conversion circuit output (V, ) is outputted as -1: output, and when the output of the tape diameter comparison circuit 21 is at Low level, the switch 45 is in the open state, and the output terminal 47 is connected to the supply 11j11 and the winding. Take-side frequency-voltage conversion circuit 11.12
An average of 7L pressure (-!-vs+-v, ) is output (resistance 43.44 is assumed to be equal to 2 2 ). The output of this mixing circuit 22 is manually inputted to the winding side speed comparison circuit 14, and the speed setting reference voltage circuit 1
5 and the winding side speed comparison circuit 14.
The output of the tape diameter comparison circuit 21 is input to the take-up reel motor drive circuit 16vc, the speed of the take-up reel motor 8 is controlled, and as shown in FIG. ) In this case, the winding flill l
) - By controlling the rotational speed of the motor to a constant value, the tape speed increases as the diameter of the magnetic tape wound on the take-up reel increases, and the tape diameter ratio 1i & the output of the circuit 21 becomes 1. During the Low level period, the magnetic tape 2 on the supply reel 5 is wound onto the take-up reel 6 at a substantially constant tape speed. On the other hand, the supply side torque generating circuit 1
The command voltage from 7 is supplied to the regular reel motor drive circuit 18
The supply side reel motor 7V is input to the magnetic tape 2.
A constant motor current is applied to generate torque in the direction of arrow 19 so that an appropriate bank tension is generated.

発明の効果 以上のように本発明によれば、例えばＦＦ（早送り）Ｒ
ＥＶ（巻戻し）においてテープ始端部を検出し、巻１４
ｘ側リールモータを定速回転にすることにより、巻取側
リールモータから発生する騒音を低くおさえつつ、テー
プ中央部及び終端部はテープ速度ｔＩｓくするように切
換えることによりＦＦ（早送り）、ＲＥＶ（巻戻し）時
間を短縮することかできる。Effects of the Invention As described above, according to the present invention, for example, FF (fast forward) R
The beginning of the tape is detected during EV (rewinding), and the beginning of the tape is
By rotating the x-side reel motor at a constant speed, the noise generated from the take-up side reel motor can be kept low, while the tape center and end portions can be switched to increase the tape speed tIs to perform FF (fast forward) and REV. (Rewinding) It is possible to shorten the time.

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

第１図は従来のカセット式ＶＴＲのテープ、１駆動装置
のブロック図、第２図は本発明の一実施例のカ七ノ）・
式ＶＴＲのテープ駆動装置のブロック図、第３図は第２
図におけるテープ径比較回路のブロック図、第４図は第
３図における各部の動作波形図、第５図は第３図におけ
る入出力％注図、第６図は第２図における混合回路の一
実施例を示す電気回路図、第７図は本発明のテープ駆動
装置の一実施例における磁気テープ速度を示す図である
。 １・・・・・テープカセット、２゛・・・磁気テープ、
３・・・供給側リール軸、４パ　巻取側リール軸、５・
・・・・・供給側リール、６・°・−・巻取１１！ＩＩ
　１）−ル、７・・・・°供給側リールモータ、８・パ
・巻）Ｍ　（ｆｉｌｌ　’Ｊ−ルモータ、９・・・・・
供給側リールＦＧ、１０゛・・・巻取１＋１１１１Ｊ−
ルｙａ、１１゛パ供給１０１１周波数−電圧変換回路、
１２・・・・巻取１］）１周波数−′１ホ圧変換回路、
１３・・・・混合回路、１４−　＝−巻取イ１ｉｌｌ速
度比較回路、１５・・・・°°速度設定基準電圧り路、
１６゛・　巻取ｆＩｉｌｌ　’Ｊ−ルモータ駆動回路、
１７パ・・・供給４１４１１バノクテ／ンヨントルク発
生回路、１８°゛・・・供給（Ｉｌｌ　ｌ）−ルモータ
駆動回路、２１°゛°゛テ一プ径比較回路、２２・・・
・・混合回路。 代理人の氏名　弁理士　中　尾　敏　男　はが１名第１
図 第３図 第２図 ｒ　　　　　　　　　　　　　　　　　　　、　　　　
　　　　−−−−−−”１第４図 ４５図 第　６　図 薯 ・−−一−−−−（ど４ＧFigure 1 is a block diagram of a conventional cassette-type VTR tape drive unit, and Figure 2 is an embodiment of the present invention.
A block diagram of the tape drive device of a type VTR.
Figure 4 is a block diagram of the tape diameter comparison circuit in Figure 4. Figure 4 is an operation waveform diagram of each part in Figure 3. Figure 5 is an input/output percentage note diagram in Figure 3. Figure 6 is a diagram of the mixing circuit in Figure 2. FIG. 7 is an electrical circuit diagram showing an embodiment of the present invention, and is a diagram showing the magnetic tape speed in an embodiment of the tape drive device of the present invention. 1... Tape cassette, 2... Magnetic tape,
3... Supply side reel shaft, 4 pa. Take-up side reel axis, 5.
・・・・・・Supply side reel, 6・°・−・Take-up 11! II
1) -le, 7...° Supply side reel motor, 8・pa・roll) M (fill 'J-le motor, 9......
Supply side reel FG, 10゛...Take-up 1+1111J-
Luya, 11 power supply 1011 frequency-voltage conversion circuit,
12... Winding 1]) 1 frequency-'1 E pressure conversion circuit,
13...Mixing circuit, 14-=-winding speed comparison circuit, 15...°° speed setting reference voltage path,
16゛・ Winding fIill 'J-le motor drive circuit,
17... Supply 41411 Banokute/Non torque generation circuit, 18°... Supply (Ill l) motor drive circuit, 21°... Tap diameter comparison circuit, 22...
...Mixed circuit. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 3 Figure 2 r,
-------"1 Figure 4 Figure 45 Figure 6 Figure 4.

Claims (1)

【特許請求の範囲】[Claims] 供給側リール軸と、巻取側リール軸と、前記供給側リー
ル軸及び前記巻取側リール軸の夫々の回１　　　　　　
転数に応じた回転情報を検出するだめの２つの回転情報
検出手段と、前記２つの回転情報検出手段の出力を比較
し、供給側リール台及び巻取側リール台の夫々に載置さ
れたテープリールに巻装されているテープ径の差を示す
信号を発生するテープ径比較手段と、前記供給側及び巻
取側回転情報検出手段の出力を夫々入力とする供給側及
び巻取側周波数−電圧変換回路と、前記供給側及び巻取
側周波数−電圧変換回路出力と前記テープ径比較手段出
力とを入力とする混合回路と、前記巻取側リール軸を駆
動するり＝ルモータと、前記混合回路出力を入力とし、
前記リールモータの回転数を制御する速度制御回路とを
備え、前記テープ径比較手段のｌＪｉノＪにより前記混
合回路における供給側及び巻取側周波数−電圧変換回路
出力の混合比を切換えるように構成したことを特徴とす
るテープ駆動装置。a supply side reel axis, a take-up side reel axis, and each rotation 1 of the supply side reel axis and the take-up side reel axis;
The outputs of the two rotation information detection means for detecting rotation information corresponding to the number of rotations are compared with the outputs of the two rotation information detection means, and a tape diameter comparison means for generating a signal indicating the difference in diameter of the tapes wound on the tape reel; and supply side and take-up side frequencies whose inputs are the outputs of the supply side and take-up side rotation information detection means, respectively. a voltage conversion circuit, a mixing circuit which receives as inputs the outputs of the frequency-voltage conversion circuits on the supply side and the winding side and the output of the tape diameter comparison means, a reel motor that drives the reel shaft on the winding side, Take the circuit output as input,
a speed control circuit for controlling the rotational speed of the reel motor, and configured to switch the mixing ratio of the supply side and take-up side frequency-voltage conversion circuit outputs in the mixing circuit by lJi-J of the tape diameter comparison means. A tape drive device characterized by:
JP58049234A 1982-10-21 1983-03-23 Tape driver Granted JPS59175052A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP58049234A JPS59175052A (en) 1983-03-23 1983-03-23 Tape driver
KR1019830004885A KR880000240B1 (en) 1982-10-21 1983-10-15 Tape plauing control apparatus
EP83110361A EP0107166B1 (en) 1982-10-21 1983-10-18 Tape driving control apparatus
US06/543,451 US4516740A (en) 1982-10-21 1983-10-18 Tape driving control apparatus
DE8383110361T DE3375247D1 (en) 1982-10-21 1983-10-18 Tape driving control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58049234A JPS59175052A (en) 1983-03-23 1983-03-23 Tape driver

Publications (2)

Publication Number Publication Date
JPS59175052A true JPS59175052A (en) 1984-10-03
JPH0456375B2 JPH0456375B2 (en) 1992-09-08

Family

ID=12825201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58049234A Granted JPS59175052A (en) 1982-10-21 1983-03-23 Tape driver

Country Status (1)

Country Link
JP (1) JPS59175052A (en)

Also Published As

Publication number Publication date
JPH0456375B2 (en) 1992-09-08

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