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51. 发明专利

JPS5948852A Magnetic recording and reproducing device 失效
标题翻译：磁记录和再现设备
公开(公告)号：JPS5948852A
公开(公告)日：1984-03-21
申请号：JP16002382
申请日：1982-09-13
申请人： Sanyo Electric Co Ltd
发明人： HAMA MINORU
IPC分类号： G11B15/46
CPC分类号： G11B15/46
摘要： PURPOSE:To reduce surely the noise of modulation with simple constitution, by bringing a modulation noise reducing part which is driven by a driving part into contact with a tape in a record or reproduction time. CONSTITUTION:A scrape filter 15 serves as a modulation noise reducing part. The 1st and 2nd rolls 17 and 20 are attached pivotably to shafts 18 and 21 implanted on a base interlocking a head mechanism part. These rolls are rotated by a motor 27 via belts 24 and 29. In a record or reproduction mode, the filter 15 is brought into a contact with a tape 6. Thus the roll 17 is rotated. The insufficient damping of the roll 17 is compensated by the roll 20, and at the same time the roll 17 is rotated at a high speed to reduce the amplitude of vertical vibration of the tape 6. This device assures the reduction of modulation noises.
摘要翻译：目的：通过在记录或再现时间内将由驱动部分驱动的调制降噪部分与磁带接触，以便以简单的结构可靠地减少调制噪声。构成：刮板过滤器15用作调制噪声降低部件。第一和第二辊17和20可枢转地附接到植入在联接头部机构部分的基座上的轴18和21上。这些辊由马达27经由带24和29旋转。在记录或再现模式中，过滤器15与带6接触。因此辊17旋转。辊17的不足的阻尼由辊20补偿，同时辊17以高速旋转以减小带6的垂直振动的振幅。该装置确保调制噪声的减小。

52. 发明专利

JPS5922258A Device for controlling driving of tape 失效
标题翻译：用于控制磁带驱动的装置
公开(公告)号：JPS5922258A
公开(公告)日：1984-02-04
申请号：JP13271882
申请日：1982-07-28
申请人： Matsushita Electric Ind Co Ltd
发明人： YOSHINO TADASHI
IPC分类号： G11B15/43 , B65H23/185 , G11B15/46
CPC分类号： G11B15/46
摘要： PURPOSE:To control tape speed and tape tension easily and precisely even in the high speed traveling state of the tape, by compensating loss torque corresponding to the turning speed of a reel motor on the feeding side by an output from a speed information detecting means for the feeding side reel motor. CONSTITUTION:When the inlet tension of a winding side reel is TT and the radius of the tape is RT, the generation torque phiT of the winding side reel motor is phiT=RT.TT. If the torque generation constant of the winding side reel motor is KTT, the current IT of the winding side reel motor is increased more than phiT=KTT.IT and the voltage of both the ends of a winding side reel motor current detecting element (resistor) 31 is raised. Therefore, the detected voltage is fed back to a servo circuit 32 of the feeding side reel motor, the current of the feeding side reel motor is reduced and the outlet tension of the feeding side reel is controlled so as to be almost fixed, so that the inlet tension on the winding side reel can be almost fixed.
摘要翻译：目的：即使在带的高速行进状态下也能够容易且准确地控制带速度和带张力，通过由速度信息检测装置的输出补偿与馈送侧的卷轴电动机的转速相对应的损失转矩，进料侧卷轴电机。构成：卷绕侧卷轴的入口张力为TT，带的半径为RT时，卷绕侧卷盘马达的产生转矩phiT为phiT = RT.TT。如果卷绕侧卷盘马达的转矩产生常数为KTT，卷绕侧卷盘马达的电流IT大于phiT = KTT.IT，绕组侧卷轴马达电流检测元件（电阻）31被提升。因此，检测到的电压被反馈到馈送侧卷轴电动机的伺服电路32，馈送侧卷轴电动机的电流减小，馈送侧卷轴的出口张力几乎固定，使得绕组侧卷轴上的入口张力几乎可以固定。

53. 发明专利

JPS58194160A Servo circuit of video tape recorder 失效
标题翻译：视频录像机伺服电路
公开(公告)号：JPS58194160A
公开(公告)日：1983-11-12
申请号：JP7441882
申请日：1982-04-30
申请人： Sharp Corp
发明人： TAKAHASHI AKIRA
IPC分类号： G05D13/62 , G11B15/46
CPC分类号： G11B15/46
摘要： PURPOSE:To decrease pull-in time of APC at starting of a motor by inserting a heat-sensing element in a limiter circuit, changing the upper and lower limit level at an ambient temperature, and making the APC locking state less out of place to release at a high and a low temperature. CONSTITUTION:An APC output signal in response to a phase of a capstan PG signal is introduced from a phase comparator 5, and the impedance conversion is applied through an integrating circuit 7, and the limiter circuit 14 is inserted between the integrating circuit 7 and an impedance converter 8. An APC output voltage across a capacitor C1 is changed by temperature as shown in (a), then the number of heat-sensing diodes and values of resistors R6, R8 are selected to change the voltage characteristics of points B, C in the limiter circuit 14 as shown in (b), (c), allowing to change the lower and the upper limit of the limiter circuit in matching with the fluctuation of the ambient temperature.
摘要翻译：目的：通过在限制器电路中插入热敏元件来减少启动电机时APC的引入时间，在环境温度下更改上限和下限电平，并使APC锁定状态不到位在高温和低温下释放。构成：从相位比较器5引入响应于主导体PG信号的相位的APC输出信号，并且通过积分电路7施加阻抗转换，并且限幅电路14插入在积分电路7和阻抗转换器8.如（a）所示，电容器C1两端的APC输出电压由温度改变，然后选择热敏二极管的数量和电阻器R6，R8的值来改变点B，C的电压特性在限制电路14中，如（b），（c）所示，允许根据环境温度的波动来改变限制电路的下限和上限。

54. 发明专利

JP2018106778A 磁気テープ装置および磁気再生方法审中-公开
公开(公告)号：JP2018106778A
公开(公告)日：2018-07-05
申请号：JP2016254421
申请日：2016-12-27
申请人：富士フイルム株式会社
发明人：笠田成人 , 小沢栄貴 , 金子徹也
IPC分类号： G11B5/738 , G11B5/78 , G11B5/70 , G11B5/71
CPC分类号： G11B15/46 , G11B5/3909 , G11B5/78
摘要：【課題】再生ヘッドとしてTMRヘッドを搭載した磁気テープ装置を提供すること。【解決手段】磁気テープと再生ヘッドとを含む磁気テープ装置であって、上記磁気テープ装置における磁気テープ搬送速度は18m/秒以下であり、上記再生ヘッドは再生素子としてトンネル磁気抵抗効果型素子を含む磁気ヘッドであり、上記磁気テープは、非磁性支持体上に強磁性粉末および結合剤を含む磁性層を有し、上記磁性層は脂肪酸および脂肪酸アミドからなる群から選ばれる成分の一種以上を含み、かつ上記磁性層の表面において光電子取り出し角10度で行われるX線光電子分光分析により得られるC1sスペクトルにおけるC−Hピーク面積率から算出されるC−H由来C濃度は45〜65原子%の範囲である磁気テープ装置。磁気再生方法。【選択図】なし

56. 发明专利

JP3551217B2 Tape speed control method and a tape unit 失效
公开(公告)号：JP3551217B2
公开(公告)日：2004-08-04
申请号：JP32866495
申请日：1995-12-18
申请人：ソニー株式会社
发明人：敏晶今井
IPC分类号： G11B15/46 , G11B15/48
CPC分类号： G11B15/48 , G11B15/46

57. 发明专利

JP3540680B2 Cassette tape recorder 有权
公开(公告)号：JP3540680B2
公开(公告)日：2004-07-07
申请号：JP24660299
申请日：1999-08-31
申请人：三洋電機株式会社
发明人：尚紀米谷 , 哲也谷
IPC分类号： G11B15/48 , G11B15/02 , G11B15/093 , G11B15/43 , G11B15/46
CPC分类号： G11B15/46 , G11B15/43

58. 发明专利

JP3515564B2 Method for calibrating a tape drive servo system, tape drives, and product 有权
公开(公告)号：JP3515564B2
公开(公告)日：2004-04-05
申请号：JP2002075892
申请日：2002-03-19
申请人：インターナショナル・ビジネス・マシーンズ・コーポレーション
发明人：ジョン・エー・コスキ
IPC分类号： G11B15/43 , G11B15/46
CPC分类号： G11B15/46 , G11B15/43

59. 发明专利

JP3469321B2 Control device of the DC servo motor 失效
公开(公告)号：JP3469321B2
公开(公告)日：2003-11-25
申请号：JP17736594
申请日：1994-07-29
申请人：富士通株式会社
发明人：竜一宮口
IPC分类号： G11B15/43 , G11B15/46 , G11B15/54 , G11B27/13 , H02P7/00 , H02P7/29
CPC分类号： H02P7/2913 , G11B15/46 , G11B15/54 , G11B27/13 , H02P7/05

60. 发明专利

JPS59213052A Reel driving control device 失效
标题翻译：旋转驱动控制装置
公开(公告)号：JPS59213052A
公开(公告)日：1984-12-01
申请号：JP8572783
申请日：1983-05-18
申请人： Hitachi Ltd
发明人： HIRAI HIROTAKE , TAJIMA FUJIO
IPC分类号： B65H23/18 , G11B15/46 , B65H25/24
CPC分类号： G11B15/46
摘要： PURPOSE:To always execute prescribed operation without measuring a variation quantity against the variation of the constant of an object to be controlled such as the state of a tape quantity on a reel, the variation of a motor constant, the inequality of inertia the reel, etc. CONSTITUTION:A winding reel driving control system consists of an integral amplifier 23 and a speed closed loop control system 30, therefore, its open loop gain characteristic is shown by adding characteristics 33, 34 shown by a full line in a figure with a characteristic 35 shown by a broken line, when it is expressed on a bode diagram, as shown in the figure. According to this figure, it is clear that a good response to a design value is obtained in a frequency band extending to a frequency omega33. The influence due to the variation of a motor load is limited to a frequency band exceeding the frequency omega33. In the figure, the standard of a responsiveness of the winding reel driving control system can be known by a cross frequency omega0. Accordingly, by designing so that the frequency omega33 is higher enough then the cross frequency omega0, it is possible to form a reel driving control system whose control performance is not influenced by the variation of a motor load, etc.
摘要翻译：目的：为了始终执行规定的操作，而不是根据卷筒上的卷带数量的状态等的被控制物的常数的变化来测量变化量，电动机常数的变化，卷轴的惯性不等式，卷绕驱动控制系统由一个集成放大器23和一个速度闭环控制系统30构成，因此，其开环增益特性是通过加上图中全线所示的特性33,34，特性35用虚线示出，当它在波特图上表示时，如图所示。根据该图，很清楚，在延伸到频率ω33的频带中获得对设计值的良好响应。由于电机负载的变化引起的影响被限制在超过频率ω333的频带上。在该图中，绕组卷轴驱动控制系统的响应性的标准可以通过交叉频率ω10来知道。因此，通过设计使得频率ω333足够高的交叉频率ω0，可以形成其控制性能不受电机负载变化等影响的卷轴驱动控制系统。

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