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41. 发明专利

JP2014022002A Recording device for recording data sequentially and tape speed alteration method therefor 审中-公开
标题翻译：用于记录数据的记录装置及其速度变换方法
公开(公告)号：JP2014022002A
公开(公告)日：2014-02-03
申请号：JP2012159002
申请日：2012-07-17
申请人： International Business Maschines Corporation , 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International Business Machines Corporation
发明人： OISHI YUTAKA , NAGURA HIROHISA , KATAGIRI TAKASHI , ABE ATSUSHI
IPC分类号： G11B20/10 , G06F3/06
CPC分类号： G11B15/026 , G11B5/09 , G11B15/442 , G11B15/46 , G11B15/48
摘要： PROBLEM TO BE SOLVED: To provide a method for determining the timing of switching a tape speed when reading/writing data on/from media.SOLUTION: A tape storage device comprises: a buffer for temporally storing data written or read between an upper device and itself; a recording medium configured to record data sequentially; and a read/write control part configured to read or write a plurality pieces of data according to a read/write request from an upper device (host). The control part is configured to control reading/writing data between the buffer and the recording medium such that, in order to avoid a situation where the host transfer speed Th of data to/from the upper device is higher than the drive transfer speed Td of data to/from the recording medium and therefore the buffer becomes full during writing or the buffer becomes empty during reading, the drive transfer speed is matched with the host transfer speed by increasing the tape speed so that a target tape speed is obtained from the present tape speed without carrying out back hitch at a specific seed alteration timing.
摘要翻译：要解决的问题：提供一种用于在从媒体读取/写入数据时确定切换磁带速度的定时的方法。解决方案：磁带存储装置包括：用于在时间上存储在上位装置和上装置之间写入或读取的数据的缓冲器本身; 配置为顺序地记录数据的记录介质; 以及读/写控制部，被配置为根据来自上位装置（主机）的读/写请求读或写多条数据。控制部被配置为控制缓冲器和记录介质之间的数据读取/写入，以便为了避免与上位装置的数据的主机传送速度Th相比高于驱动传送速度Td的情况数据往/从记录介质，因此在写入期间缓冲器变满或缓冲器在读取期间变空，驱动传送速度通过增加磁带速度与主机传送速度相匹配，从而从目前的磁带速度获得目标磁带速度磁带速度，而不会在特定的种子更改时间进行后退。

42. 发明专利

JP5357364B2 Speed control of the tape drive 有权
公开(公告)号：JP5357364B2
公开(公告)日：2013-12-04
申请号：JP2013517412
申请日：2011-07-14
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International Business Machines Corporation
发明人：ハンコック、リード、アラン , インチ、ランディ、クラーク , ブイ、ナン、チュアン , 和弘鶴田 , 英司小倉 , 修平撫原
IPC分类号： G11B15/46 , G11B5/09 , G11B15/48
CPC分类号： G11B15/32 , G11B15/46 , G11B15/52
摘要： In accordance with the present invention, a method of operating a magnetic tape drive, a magnetic tape drive and a servo control system are provided for obtaining and maintaining velocity control in a magnetic tape drive. In one embodiment, a method is provided for operating a magnetic tape drive. The tape drive includes a plurality of DC motors, and each DC motor has a plurality of Hall sensors. The DC motors are under the control of a servo system which is configured to read location information from the magnetic tape, and compute a primary tape velocity from the location information, and sense a secondary and tertiary velocity signal and compute a tape velocity based on one of the sensed secondary velocity signal and tertiary velocity. The method includes detecting if the primary velocity location information is available. In response to detecting that the primary velocity location information is available the primary velocity is employed to control the servo system. In response to detecting the primary velocity location information is unavailable then one of a secondary or a tertiary velocity signal is employed. The secondary velocity signal is employed when an absolute value of a term related to tape velocity is less than a predetermined value. The tertiary velocity signal is employed when the absolute value of the term related to tape velocity is greater than the predetermined value.

43. 发明专利

JPS6180645A Method and apparatus for feeding recording medium 失效
标题翻译：用于记录记录介质的方法和装置
公开(公告)号：JPS6180645A
公开(公告)日：1986-04-24
申请号：JP20550485
申请日：1985-09-19
申请人： Ampex
发明人： O'GWYNN DAVID C , HELMERS THOMAS L
IPC分类号： G11B15/18 , G11B15/46 , G11B15/48 , G11B27/10
CPC分类号： G11B27/107 , G11B15/1875 , G11B15/46 , G11B15/48 , G11B2220/90

44. 发明专利

JPS59191163A High-speed feed controller of tape 失效
标题翻译：高速进料控制器
公开(公告)号：JPS59191163A
公开(公告)日：1984-10-30
申请号：JP6605783
申请日：1983-04-14
申请人： Matsushita Electric Ind Co Ltd
发明人： FURUTA TAKAAKI
IPC分类号： B65H23/18 , G11B15/46
CPC分类号： G11B15/46
摘要： PURPOSE:To set the tape speed at a fixed level in a fast forward mode by detecting the revolving cycles of both the take-up and supply reels of a magnetic tape and then controlling the drive torque of a motor which drives the take-up reel based on the detected revolving cycle. CONSTITUTION:The right and left reel revolving cycles are referred to as Tt and Ts respectively, and the values of Tt, Ts and Tt +Ts are shown in a graph. As a result, the value of Tt +Ts is constant at any position of a tape as long as the tape speed is constant. On the contrary, the tape speed can be controlled to an optional fixed level when the value of Tt +Ts is set at an optional fixed level. Here the tape speed is controlled so that the value of Tt is equal to 1/900 compared with that of a reproduction mode. Then the tape speed can be controlled at a fixed level equal to 30 times as high as that of a reproduction mode when the tape is fast forwarded. Then it is discriminated whether the tape speed is higher or lower than the level equal to 30 times as high as that of the reproduction mode. When the tape speed is lower than said level, the revolving cycle of a reel drive disk is increased. Therefore the value of Tt + Ts is larger than the comparison data C. Thus the driving torque of a reel motor is increased to increase the tape speed.
摘要翻译：目的：通过检测磁带的卷取和供给卷轴的旋转周期，然后控制驱动卷取卷轴的马达的驱动扭矩，将卷带速度设置在快进模式下的固定水平基于检测到的循环周期。构成：左右卷轴旋转周期分别称为Tt和Ts，Tt，Ts和Tt2 + Ts <2的值如图所示。结果，只要磁带速度恒定，Tt2 + Ts2的值在磁带的任何位置是恒定的。相反，当Tt <2> + Ts <2的值设置在可选的固定电平时，磁带速度可以被控制到可选的固定电平。这里，控制磁带速度，使得与再现模式相比，Tt <2的值等于1/900。然后，当磁带快速转发时，磁带速度可以被控制在等于重放模式的30倍的固定电平。然后鉴别磁带速度是高于还是低于再现模式的30倍的电平。当磁带速度低于所述电平时，卷轴驱动盘的旋转周期增加。因此，Tt2 + Ts2的值大于比较数据C.因此，卷轴电动机的驱动转矩增加以增加带速度。

45. 发明专利

JPS59185055A Double capstan type tape drive device 失效
标题翻译：双卡通类型磁带驱动器件
公开(公告)号：JPS59185055A
公开(公告)日：1984-10-20
申请号：JP5984083
申请日：1983-04-05
申请人： Sony Corp
发明人： OKA NOBUYUKI
IPC分类号： G11B15/43 , G11B15/46
CPC分类号： G11B15/43 , G11B15/46
摘要： PURPOSE:To make the tape tension constant at all times by detecting the drive current difference of each drive motor of a double capstan and giving an AC component to a speed phase servo circuit of a drive motor of the tape supply side so as to keep the circumferential speed difference of both capstans constant. CONSTITUTION:A frequency generator is fitted to the rotary shaft of capstan motors 4, 5, a capstan rotating speed is detected by its output FG and speed servo loops 6, 7 controlling a motor drive voltage in response to an error with the reference are provided to the motors respectively. The capstan motor control circuits at the winding side and the supply side are provided respectively with phase servo loops 18, 19. Moreover, the motor control circuits are provided with a coil current difference detecting circuit 29 detecting the difference of drive currents of both capstan motors 4, 5, the current is fed back negatively to a drive circuit 17 via adders 26, 13 and a comparator 15, thereby attaining the control that the AC fluctuation component of tape tension is reduced.
摘要翻译：目的：通过检测双绞盘的每个驱动电机的驱动电流差，并将交流分量提供给磁带供应侧的驱动电机的速相相位伺服电路，使磁带张力始终保持恒定，以保持两个绞盘的圆周速度差恒定。构成：频率发生器安装在主导轴电动机4,5的旋转轴上，通过其输出FG检测主导轴转速，并且响应于参考的误差控制电动机驱动电压的速度伺服回路6,7 分别给电机。卷绕侧和供电侧的主导轴电动机控制电路分别设置有相位伺服回路18,19。而且，电动机控制电路设置有线圈电流差检测电路29，检测两个主导轴电动机的驱动电流的差异如图4,5所示，通过加法器26,13和比较器15将电流反向反馈到驱动电路17，从而获得带张力的AC波动分量减小的控制。

46. 发明专利

JPS59151347A Device for discriminating tape running speed 失效
标题翻译：用于辨别胶带运行速度的装置
公开(公告)号：JPS59151347A
公开(公告)日：1984-08-29
申请号：JP1397683
申请日：1983-01-31
申请人： Toshiba Corp
发明人： MIYAZAWA SHIYUNICHI
IPC分类号： G01P3/54 , G11B15/087 , G11B15/46 , G11B15/52
CPC分类号： G11B15/46
摘要： PURPOSE:To obtain a counter output in response to a running speed at recording independently of the reproducing mode by counting a reproduced control signal and synchronizing this count operation with the operation of a rotating body rotated at the rotating speed in response to the tape running speed. CONSTITUTION:When tape running speeds A, B at recording have the relation of A=2B, the count value of a counter 26 reproducing a magnetic tape recorded at the speed A is (a) shown in a figure (b), the count value is shown in 2a of a figure (c) at the speed B. In synchronizing the count operation of the counter 26 counting a control signal CTL with the rotation of a pinch roller 21, the count value in response to a magnetic tape recorded at the speed B is nearly twice that at the speed A. The said relation of the count value remains unchanged even if the running speed is changed. That is, the count values corresponding to the running speeds A, B are (a) and 2a respectively even at the special reproducing mode.
摘要翻译：目的：通过对再现控制信号进行计数，并根据磁带运行速度与转速旋转的旋转体的动作同步该计数操作，通过对再现模式进行记录而获得响应于记录运行速度的计数器输出。构成：当记录中的磁带运行速度A，B具有A = 2B的关系时，再现以速度A记录的磁带的计数器26的计数值是图（b）所示的（a），计数值以速度B在图（c）的2a中示出。在计数控制信号CTL的计数器26与压紧辊21的旋转同步时，计数值响应于记录在速度B是速度A的两倍。即使运行速度改变，计数值的所述关系也保持不变。也就是说，与运行速度A，B对应的计数值分别是（a）和2a，即使在特殊再现模式下。

47. 发明专利

JPS59148178A Magnetic tape device 失效
标题翻译：磁带设备
公开(公告)号：JPS59148178A
公开(公告)日：1984-08-24
申请号：JP2324583
申请日：1983-02-14
申请人： Matsushita Electric Ind Co Ltd
发明人： KAJINO JIROU
IPC分类号： G05D13/62 , G11B15/30 , G11B15/46
CPC分类号： G11B15/46
摘要： PURPOSE:To reduce the operation sound of a reel driving mechanism in a fast winding mode by controlling the motor of a magnetic tape device of 3-motor system in response to the coupling state to a reel drive disk in quick traversing and rewind modes by a prescribed system. CONSTITUTION:A VTR 7, etc. applies a 3-motor system including a driving motor 17 for capstan 18, a supply reel motor 9 connected directly to a supply reel drive disk 8 and a take-up reel motor 12 which drives a take-up reel drive disk 10 via wheels 13 and 11. The revolution of the motor 9 is controlled in a rewind mode so as to keep a fixed speed of a tape 3, and the motor 12 is controlled to a fixed number of revolutions in a quick traversing mode. Thus it is possible to reduce the working tone of a reel driving mechanism due to gears in a fast winding, rewind and fast wind modes of a magnetic tape device of 3- motor system.
摘要翻译：目的：通过将快速通过和快退方式的卷轴驱动盘的耦合状态控制在3马达系统的磁带装置的马达上，以快速卷绕方式降低卷轴驱动机构的操作声音规定制度。构成：VTR 7等应用3马达系统，包括用于绞盘18的驱动马达17，直接连接到供带盘驱动盘8的供带盘马达9和驱动卷取马达12的卷取马达12，通过轮13和11旋转卷轴驱动盘10.电动机9的转动被控制在重绕模式，以保持带3的固定速度，并且电动机12以快速的速度被控制到固定的转速运行模式因此，可以通过3-电动机系统的磁带装置的快速卷绕，倒带和快速风力模式中的齿轮来降低卷轴驱动机构的工作音调。

48. 发明专利

JPS59101056A Cassette type magnetic tape device 失效
标题翻译： CASSETTE型磁带设备
公开(公告)号：JPS59101056A
公开(公告)日：1984-06-11
申请号：JP20981882
申请日：1982-11-30
申请人： Teac Co
发明人： TAKEI MASAO , KANEKO KENJI , HOSAKA SHIZUO
IPC分类号： G11B15/08 , G11B15/46
CPC分类号： G11B15/08 , G11B15/46
摘要： PURPOSE:To prevent abnormal running of a magnetic tape caused by the boundary between the clear leader tape part and magnetic tape part of the tape, by installing a detector which detects the clear leader tape part of the cassette magnetic tape and a speed controlling circuit which controls the running speed of the tape. CONSTITUTION:When a leader tape part 1a passes the front of a photoreceptor element 22 and a magnetic tape part 1b comes, a detecting circuit 23 generates an output which indicates that the magnetic tape part 1b is a part having a delay of more than a time required when the tape 1 runs from the front of the element 22 to a capstan 5 at the winding side. When the output is generated, a contact (b) is turned on and a switching circuit 16 is connected to a frequency dividing circuit 27, and then, a speed signal is supplied to the frequency dividing circuit 27 and running of the tape 1 is started. Since the part 1b is already positioned at the capstan 4 and 5, change in running condition caused by the boundary between the parts 1a and 1b does not occur.
摘要翻译：目的：为了防止由清洁导线带部分和磁带部分之间的边界引起的磁带异常运行，通过安装检测盒式磁带的清晰导线带部分的检测器和速度控制电路控制磁带的运行速度。构成：当引导带部分1a通过感光体元件22的前部并且磁带部分1b到达时，检测电路23产生指示磁带部分1b是延迟大于一个时间的部分的输出当带1从元件22的前部延伸到卷绕侧的绞盘5时需要。当产生输出时，触点（b）导通，开关电路16连接到分频电路27，然后将速度信号提供给分频电路27，并且磁带1的运行开始。由于部件1b已经位于主导轴4和5处，所以不会发生由部件1a和1b之间的边界引起的运行状态的变化。

49. 发明专利

JPS5971149A Discriminating circuit of tape recording speed 失效
标题翻译：判断录像带的录像电路
公开(公告)号：JPS5971149A
公开(公告)日：1984-04-21
申请号：JP18190682
申请日：1982-10-15
申请人： Sanyo Electric Co Ltd
发明人： YAMASHITA YUKIO
IPC分类号： G11B15/087 , G11B15/46 , G11B15/467
CPC分类号： G11B15/46
摘要： PURPOSE:To discriminate the running speed of a recording tape, by detecting the level change in a difference frequency output between a reproduced tracking pilot signal and an injection oscillator output. CONSTITUTION:The tracking pilot signal in the reproduced output is amplified, inputted to a mixing circuit 2, and mixed with an output of the injection oscillating circuit 3 whose oscillating frequency is changed at the field period by an RF switching signal. After amplification, the signal is inputted to filters 5, 6 whose center frequency is set to 16, 46kHz and the detecting stage is provided, and the difference frequency output of the both is led out. A subtraction output subtracting the difference frequency output in 46kHz from the difference frequency output in 16kHz at a subtraction circuit 7 is inputted, and an analog switch 9 using its output and the subtraction output as a switching input is switched by an RF switching signal, and the inverted output is synthesized. This inverted output is inputted to a level detecting circuit 10 having a threshold level. The recording density of a tape is discriminated by discriminating the difference of the period of the inverted output obtained from the detected output G.
摘要翻译：目的：通过检测再现的跟踪导频信号和注入振荡器输出之间的差频输出的电平变化来区分记录带的运行速度。构成：再现输出中的跟踪导频信号被放大，输入到混合电路2，并且通过RF切换信号将其振荡频率在场周期改变的注入振荡电路3的输出混合。放大后，将信号输入到中心频率设定为16,46kHz，检测级的滤波器5,6，并将两者的差频输出引出。输入减去在减法电路7中以16kHz输出的差频输出的46kHz的差频输出的减法输出，利用其输出和减法输出作为切换输入的模拟开关9通过RF切换信号切换，反相输出被合成。该反相输出被输入到具有阈值电平的电平检测电路10。通过区分从检测到的输出G获得的反相输出的周期的差异来区分带的记录密度。

50. 发明专利

JPS5965959A Tape driving device of magnetic picture recording and reproducing device 失效
标题翻译：磁片图像记录和再现装置的磁带驱动装置
公开(公告)号：JPS5965959A
公开(公告)日：1984-04-14
申请号：JP17553982
申请日：1982-10-05
申请人： Matsushita Electric Ind Co Ltd
发明人： NAKADOKORO TSUGUTADA
IPC分类号： B65H23/18 , G11B15/46 , H02P7/288
CPC分类号： G11B15/46
摘要： PURPOSE:To make a running speed constant irrespective of a tape take-up diameter by varying the time constant of a monostable multivibrator of a tape speed control system in accordance with the frequency of a reproducing control signal, and executing a control so that said signal frequency becomes constant. CONSTITUTION:A reproducing control signal (M in the figure) is shaped in waveform (N in the figure) by an amplifier 13, and thereafter, voltage P corresponding to frequency of the reproducing control signal is obtained by a frequency-voltage transducer 14, and a time constant of a monostable multivibrator 5 is varied in accordance with this voltage P through an emitter-follower circuit 15. When a tape winding diameter increases and a running speed of a tape becomes high, frequency of the reproducing control signal M is also varied, and following it, the voltage P is varied, and the time constant (delay amount) of the monostable multivibrator 5 is varied. It means a fact that a reference speed of a speed controlling circuit is varied, therefore, when variation degrees of the voltage P and the time constant are set suitably, it is possible to control to a constant tape speed.
摘要翻译：目的：通过根据再现控制信号的频率改变磁带速度控制系统的单稳态多谐振荡器的时间常数，使运行速度恒定，而不管磁带卷取直径，并执行控制，使得所述信号频率变得恒定。构成：再现控制信号（图中的M）由放大器13以波形（图中的N）成形，此后，通过频率电压换能器14获得与再生控制信号的频率对应的电压P，并且单稳态多谐振荡器5的时间常数根据该电压P通过发射极跟随器电路15而变化。当磁带缠绕直径增加并且磁带的运行速度变高时，再现控制信号M的频率也是变化，随后，电压P变化，单稳态多谐振荡器5的时间常数（延迟量）变化。这意味着速度控制电路的参考速度变化的事实，因此当电压P和时间常数的变化度被适当地设定时，可以控制到一定的磁带速度。

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