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    • 2. 发明专利
    • Tracking method of magnetic recording and reproducing device
    • 磁记录和再现装置的跟踪方法
    • JPS59198557A
    • 1984-11-10
    • JP7442383
    • 1983-04-27
    • Matsushita Electric Ind Co Ltd
    • YAMADA KOUICHIKUBO KANJIKITAMURA SADAFUMIUSUKI NAOJI
    • H04N5/7826G11B5/588G11B15/46G11B15/467
    • G11B15/46
    • PURPOSE:To attain stable control by eliminating a flyback signal superimposed on a regenerated pilot signal in the method conducting tracking control using a pilot signal. CONSTITUTION:The regenerated pilot signal B superimposed with a flyback pulse signal is inputted from a terminal 15. The regenerated pilot signal C where a low frequency energy component of the flyback pulse signal is eliminated is obtained from the output by allowing the signal to pass through a high pass filter 16. A horizontal synchronizing signal B is inputted to a monostable multivibrator 18 triggered by the leading edge. This time constant is set to obtain either a pulse output D equal to the flyback signal in time width superimposed on the regenerated pilot signal, or broader more or less than the flyback signal. An output of the said high pass filter 16 is inputted to a gate circuit 19 and only the high period of the pulse output signal D of a monostable multivibrator 18 is gated, then the regenerated pilot signal E is obtained from the output of the gate circuit 19 and the signal is outputted from a terminal 20.
    • 目的:通过在使用导频信号进行跟踪控制的方法中消除叠加在再生导频信号上的反激信号来获得稳定的控制。 构成:从终端15输入叠加有回扫脉冲信号的再生导频信号B.通过允许信号通过,从输出获得消除回扫脉冲信号的低频能量分量的再生导频信号C 高通滤波器16.水平同步信号B被输入到由前沿触发的单稳态多谐振荡器18。 该时间常数被设置为获得等于叠加在再生导频信号上的时间宽度的等于反激信号的脉冲输出D,或者更大或更小于反激信号。 所述高通滤波器16的输出被输入到门电路19,并且只有单稳态多谐振荡器18的脉冲输出信号D的高周期被选通,则再生导频信号E从门电路的输出获得 并且从终端20输出信号。
    • 3. 发明专利
    • Tape speed controller
    • 带速控制器
    • JPS59148177A
    • 1984-08-24
    • JP2194183
    • 1983-02-12
    • Matsushita Electric Ind Co Ltd
    • ENDOU KOUICHIROUFUJII KATSUYOSHI
    • B65H23/18G11B15/46H02P7/288
    • G11B15/46
    • PURPOSE:To keep the tape speed at a fixed level in a quick traversing mode by delivering a pulse having the width porportional to the number of revolutions of reels to control the voltage of a driving motor for supply reel when the number of revolutions of both supply and take-up reels are decreased less than the fixed value. CONSTITUTION:The revolving speed of a take-up reel is high at a time point close to the start of a quick traversing mode, and therefore the revolution detecting pulse obtained by a detector 8 has a short cycle. A modulator 10 is triggered again after triggering and delivers no pulse. While a modulator 11 delivers a pulse having the width proportional to the number of revolutions of the supply reel which is less than a fixed level. This pulse is sent to a selector 12 and integrated by an integrator 13. This integrated pulse is applied to a controller 14 as the correction control voltage of a supply reel driving motor 15. The correction control voltage is not generated in a middle period, and the correction control voltage is applied again to the motor 15 when the number of revolutions of the reel 6 is decreased less than the prescribed level. As a result, the tape speed of the quick traversing mode is kept at a fixed level. This improves the signal processing characteristics of the quick traversing mode.
    • 目的:为了在快速移动模式下将磁带速度保持在一个固定的水平,当两个电源的转数达到一定的距离时,通过传递一个具有宽度分别为卷轴数的脉冲来控制电源卷轴驱动电机的电压 并且卷取卷轴减小到小于固定值。 构成:接近卷轴的旋转速度在接近快速移动模式开始的时间点较高,因此由检测器8获得的转速检测脉冲具有短的周期。 调制器10在触发后再次被触发并且不传送脉冲。 而调制器11输送具有与供给卷轴的转数成比例的宽度小于固定电平的脉冲。 该脉冲被发送到选择器12并由积分器13积分。该积分脉冲作为供给卷轴驱动电动机15的校正控制电压被施加到控制器14.在中间期间不产生校正控制电压, 当卷轴6的转数减小到小于规定水平时,校正控制电压再次施加到电动机15。 结果,快速移动模式的磁带速度保持在固定的水平。 这提高了快速移动模式的信号处理特性。
    • 4. 发明专利
    • Controller for rapid winder
    • 快速控制器
    • JPS59128151A
    • 1984-07-24
    • JP455183
    • 1983-01-13
    • Matsushita Electric Ind Co Ltd
    • ASHIDA TOMONORI
    • B65H23/18B65H23/185B65H23/198G11B15/46
    • G11B15/46
    • PURPOSE:To stably wind a tape at a high speed, by detecting the rotational frequency of a supply reel and the length of the tape sent out and by calculating the increase and decrease in the winding diameters of a winding reel and the supply reel to modify the rotational frequency of a supply reel motor to equalize both the tape speeds to each other. CONSTITUTION:The waste part of a tape is slowly sent out by a prescribed distance. At that time, the rotational frequency of a supply reel is measured by a reel rotational frequency detector 10 and the length of the sent-out tape is determined by a length measuring unit 3. A rotation instructing table for DC motors 5, 7, which corresponds to a prescribed tape movement speed curve, is prepared. The rotation of the supply reel and a winding reel is controlled by outputs delivered from a CPU and complying with the table. The difference between both the actual tape speeds, which are calculated to be equal to each other, and the disturbance to the moving tape are compensated by feedback control to regulate the DC motor for the supply reel. The reliabilty for stability and rapid winding is thus promoted.
    • 目的:为了稳定地高速卷带,通过检测供带盘的旋转频率和送出的带的长度,并通过计算卷绕卷轴和供带盘的卷绕直径的增减来修改 供给卷轴电动机的旋转频率将两个带速度彼此均衡。 构成:磁带的废弃部分被缓慢地送出规定的距离。 此时,卷轴旋转频率检测器10测量供带盘的旋转频率,并且由长度测量单元3确定送出的带的长度。一个用于直流电机的转动指令表,其中, 对应于规定的胶带移动速度曲线,准备。 供纸卷轴和卷绕卷轴的旋转由CPU输出并符合表格的输出控制。 通过反馈控制来补偿计算为彼此相等的实际磁带速度和对移动磁带的干扰之间的差异,以调节供电卷轴的DC电动机。 从而促进了稳定性和快速卷绕的可靠性。
    • 5. 发明专利
    • Tape driving controller
    • 磁带驱动控制器
    • JPS59113549A
    • 1984-06-30
    • JP22423682
    • 1982-12-20
    • Matsushita Electric Ind Co Ltd
    • YOSHINO TADASHIMAMEI MASAYUKI
    • G11B15/093G11B15/43G11B15/46G11B15/54
    • G11B15/54G11B15/46
    • PURPOSE: To run a tape stably, by inputting rotation information of a reel turntable and a reference frequency signal to a period measuring means to operate it as a frequency-voltage converting circuit at the quick traversing or rewinding time and controlling each reel motor of the output of period measurement.
      CONSTITUTION: In case of quick traversing, rotating speed information of supply and take-up reel motors 7 and 8 are detected by frequency generators (reel FGS) 21 and 22, and output signals are inputted to supply and take-up period measuring circuits 51 and 52. The reference frequency signal of a reference frequency generating circuit 53 is inputted to period measuring circuit 51 and 52 through an SW circuit 54 and is used as a reference signal for period measurement. Reel FG frequencies are converted to voltagees, and respective voltage outputs are added in a ratio 1:1 by a mixing circuit 25, and the output of the mixing circuit 25 is inputted to a take-up speed comparing circuit 26 and is compared with a reference voltage from a speed set reference voltage circuit 27, and the output of the comparing circuit 26 is inputted to a take-up motor driving circuit 29 through an SW circuit 28 to control the speed of the take-up reel motor 8, thus winding a magnetic tape in a certain speed.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了稳定地运行磁带,通过将卷轴转盘的旋转信息和参考频率信号输入到周期测量装置,以便在快速移动或重绕时间将其作为频率电压转换电路进行操作,并且控制每个卷轴电动机 期间测量的输出。 构成:在快速移动的情况下,通过频率发生器(卷轴FGS)21和22检测供纸卷取电机7和8的转速信息,并将输出信号输入到供给和卷取周期测量电路51 参考频率发生电路53的参考频率信号通过SW电路54输入到周期测量电路51和52,并用作周期测量的参考信号。 卷取FG频率被转换为电压,并且通过混合电路25以1:1的比例将相应的电压输出相加,并且混合电路25的输出被输入到卷取速度比较电路26,并与 来自速度设定基准电压电路27的参考电压,比较电路26的输出通过SW电路28输入到卷取电动机驱动电路29,以控制卷取电动机8的转速,从而卷绕 磁带一定速度。
    • 6. 发明专利
    • Device for controlling driving of tape
    • 用于控制磁带驱动的装置
    • JPS5977658A
    • 1984-05-04
    • JP18768282
    • 1982-10-26
    • Sony Corp
    • MORISAWA TAKASHI
    • B65H23/18G11B15/46
    • G11B15/46
    • PURPOSE:To execute quick traverse and rewinding almost at a fixed speed by coupling a deceleration controlling device with a speed controlling device and by changing the objective control value of a tape speed controlling part by a high speed tape feeding signal, an output of a tape end terminal detecting part, and a low speed tape feeding signal. CONSTITUTION:A rotor rotating magnetic field detecting signal detected by a hole element H1 is applied to a driving circuit D1 through a voltage controlling amplifier (VCA) A1 and the output of the driving circuit D1 is applied to a reel motor winding W1 through a switch S1. The output of the hole element H1 is applied as a revolution signal phiT1 to the tape end terminal detecting part 10 and the tape speed fixing controlling part 11, and the detecting part 10 detects the approach of the tape end terminal, forms high and low speed signals H/L and sends the formed signals to the controlling part 11. The controlling part 11 generates a speed controlling signal V fixing the tape speed and applies the signal V to the gain controlling input of the VCA A1. Consequently, the turning speed of the reel motor can be adjusted.
    • 目的:通过将减速控制装置与速度控制装置连接起来,通过用高速送带信号改变带速控制部件的物镜控制值,几乎以固定的速度执行快速的进给和倒带,带的输出 末端检测部分和低速带馈送信号。 构成:由孔元件H1检测的转子旋转磁场检测信号通过电压控制放大器(VCA)A1施加到驱动电路D1,驱动电路D1的输出通过开关施加到卷轴电动机绕组W1 S1。 孔元件H1的输出作为旋转信号phiT1施加到带端终端检测部10和带速定影控制部11,检测部10检测到带端终端的接近,形成高低速 信号H / L并将形成的信号发送到控制部分11.控制部分11产生固定磁带速度的速度控制信号V,并将信号V施加到VCA A1的增益控制输入。 因此,可以调节卷轴电动机的转动速度。
    • 8. 发明专利
    • Tape reel driving device
    • 胶带驱动装置
    • JPS5930258A
    • 1984-02-17
    • JP14019782
    • 1982-08-12
    • Sony Corp
    • HATSUTORI SHIYUUICHI
    • G11B15/43B65H23/18G11B15/46
    • G11B15/46
    • PURPOSE:To perform stable fast-forward and rewind control at constant tape speeds, by controlling a payoff and a take-up reel so that the sum of the square of their rotation periods is constant. CONSTITUTION:Signals having pulse widths corresponding to rotation periods TT and TS of the payoff and take-up reel turntables are sent from rotation period detectors 4 and 5 attached to the reel turntables respectively to F/V converting circuits 6 and 7, which outputs voltage signals VT and VS to square- law circuits 8 and 9 for square-law arithmetic. Their outputs V T and V S are added by an adder 10 to a specific value -A from a reference voltage power source 11. Its output is sent through an LPF12 to a driving amplifier 14 or 15 by a changeover switch 13 according to fast-forward (FF) or rewind (REW) mode. Then, a take-up reel motor 16 or payoff reel motor 17 is driven by the output of said amplifier so that the output of the LPF12 is zero. Thus, the fast-forward and rewind control with constant tape speeds is carried out.
    • 目的:以恒定的磁带速度进行稳定的快进和快退控制,通过控制收益和收纸卷轴,使其旋转周期的平方和之和是恒定的。 构成:具有对应于收益卷轴转盘的旋转周期TT和TS的脉冲宽度的信号分别从附接到卷盘转盘的旋转周期检测器4和5发送到F / V转换电路6和7,该转换电路6和7输出电压 信号VT和VS到平方律电路8和9用于平方律算术。 它们的输出V 2和V 2通过加法器10加到来自参考电压电源11的特定值-A 2。其输出通过LPF12发送到驱动放大器14或15 通过根据快进(FF)或倒带(REW)模式的切换开关13。 然后,收容卷轴电动机16或发送卷轴电动机17由所述放大器的输出驱动,使得LPF12的输出为零。 因此,执行具有恒定磁带速度的快进和快退控制。
    • 9. 发明专利
    • Controlling method of tape winding
    • 磁带卷绕控制方法
    • JPS58218061A
    • 1983-12-19
    • JP10024782
    • 1982-06-11
    • Fuji Photo Film Co Ltd
    • SATOU SHINICHISAKAGUCHI MASAAKIKUBOTA KAZUO
    • B65H23/195B65H26/00G11B15/46
    • G11B15/46
    • PURPOSE:To attain the cost-down of the device and to improve the reliability, by comparing a voltage proportional to the rotating speed of a winding reel and a preset value for detecting the falling point of a tape running speed switching point and stopping the winding. CONSTITUTION:A value of a winding tape to the entire length is set to a preset counter of a stop signal generating circuit 6, and a reference voltage value Vs of a reference voltage generator 5b of a falling point detecting circuit 5 is adjusted with a variable resistor 4 so as to be a voltage of a falling point B. The tape winding diameter is increased as a winding small reel winds up a tape and an output voltage VT of a tachogenerator 2 is decreased gradually. When this voltage reaches the Vs of the falling point or below, an output of a comparator 5a is inverted, a coincidence detecting signal Sa of the falling point B is given to a main circuit 7. When the main circuit 7 detects the coincidence detecting signal Sa of the falling point B, the voltage is changed over to a voltage decreased along a prescribed tilted angle, to decrease gradually the tape winding speed. Then, a pulse train generated in response to the amount of tape winding is counted, and when the counted value is coincident with the value corresponding to the entire tape winding amount set in the counter, a stop signal generating circuit 6 gives a stop signal Sb to the main circuit 7.
    • 目的:为了实现设备的成本降低和提高可靠性,通过比较与卷取卷轴的转速成比例的电压和检测带运行速度切换点的下降点并停止绕组的预设值 。 构成:将整个长度的卷绕带的值设置为停止信号发生电路6的预设计数器,并且利用变量调整下降点检测电路5的参考电压发生器5b的参考电压值Vs 电阻器4成为下降点B的电压。当卷绕小卷轴卷绕带子并且转速发电机2的输出电压VT逐渐降低时,带卷绕直径增加。 当该电压达到下降点或更低的Vs时,比较器5a的输出反相,下降点B的一致检测信号Sa被提供给主电路7.当主电路7检测到重合检测信号 Sa的下降点B,将电压切换成沿规定倾斜角度减小的电压,逐渐减小带卷绕速度。 然后,响应于磁带卷绕量产生的脉冲序列被计数,并且当计数值与对应于在计数器中设置的整个磁带卷绕量相对应的值一致时,停止信号发生电路6给出停止信号Sb 到主电路7。
    • 10. 发明专利
    • Magnetic recording and reproducing device
    • 磁记录和再现设备
    • JPS58179955A
    • 1983-10-21
    • JP6202982
    • 1982-04-14
    • Nippon Columbia Co Ltd
    • HAYASHI HIDEAKI
    • B65H23/18G11B15/46
    • G11B15/46
    • PURPOSE:To drive a tape at a constant speed without using a tape detecting roll, by detecting both the rotational frequency of a take-up reel and the reciprocal number of the diameter of a taken-up tape and then controlling the revolution of the take-up reel with the output of comparison between both detecting signals. CONSTITUTION:The rotary angle speed omega of a take-up reel 1 is detected by a tachogenerator TG which is connected directly to a driving motor M of the reel 1 of a tape T. The biasing force is applied to a detecting arm 3 so that a tip roll 3a has a contact with the tape T by means of a spring 4. Furthermore a window 9 having the width reduced gradually is provided to a shutter 6 which is fixed to an arm rotary shaft 5. A photodetecting element 8 receives the light of a light emitting element 7 through the window 9, and the output the element 8 is adversely proportional to the radius R of the tape T. The tape speed V is set at a constant level by applying the outputs of the TG and the element 8 to a differential amplifying circuit via an amplifier and then driving and controlling the motor M with the output of the differential amplifying circuit since omega=V/R is satisfied.
    • 目的:通过检测收纸卷轴的旋转频率和卷绕带的直径的倒数,然后控制卷取卷的旋转,以恒定的速度驱动胶带,而不使用带检测辊 - 两个检测信号之间的比较输出。 构成:卷取卷轴1的旋转角速度ω由直接连接到带T的卷轴1的驱动马达M的测速发电机TG检测。偏压力被施加到检测臂3,使得 尖端辊3a通过弹簧4与带T接触。此外,将宽度逐渐减小的窗口9设置到固定到臂旋转轴5上的挡板6.光检测元件8接收光 通过窗口9的发光元件7,并且元件8的输出与带T的半径R成正比。通过应用TG和元件8的输出将带速度V设定在恒定水平 通过放大器到差分放大电路,然后由于ω= V / R满足差分放大电路的输出,驱动和控制电机M。