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    • 2. 发明申请
    • UNIT AND METHOD OF DRIVING WITH MOTOR, AND APPARATUS FOR RECORDING AND/OR REPRODUCING RECORDING MEDIUM
    • 用电机驱动的单元和方法以及用于记录和/或再现记录介质的装置
    • WO99019980A1
    • 1999-04-22
    • PCT/JP1998/004567
    • 1998-10-09
    • G11B15/18G11B15/28G11B15/46G11B19/28H02P6/06H02P6/08
    • H02P6/08G11B15/28G11B15/46G11B19/28
    • A drive unit comprising a drive means which switches the number of turns of coils of phases of a motor having a plurality of phases to drive the motor in a first mode by using all the coils of each phase or to drive the motor in a second mode by using the number of turns of the coils fewer than that of the first mode, a power source voltage detecting means for detecting a power source voltage supplied to the drive means, a temperature detecting means for detecting the ambient temperature in which the motor is used, and a control means for switching the drive means so as to drive the motor in either the first mode or the second mode based upon the result of detection from the power source voltage detecting means or the result of detection from the temperature detecting means, thus making it possible to save the consumption of electric power while maintaining the revolution of the motor constant.
    • 一种驱动单元,包括驱动装置,该驱动装置通过使用每相的所有线圈来切换具有多个相位的电动机的相位线圈的匝数以驱动电动机,或者以第二模式驱动电动机 通过使用比第一模式少的线圈匝数,电源电压检测装置,用于检测提供给驱动装置的电源电压;温度检测装置,用于检测使用电动机的环境温度 以及控制装置,用于根据来自电源电压检测装置的检测结果或来自温度检测装置的检测结果,切换驱动装置以驱动电动机处于第一模式或第二模式,从而 可以在保持电动机转数恒定的同时节省电力消耗。
    • 3. 发明申请
    • TAPE DRIVE
    • 磁带驱动器
    • WO2008119927A1
    • 2008-10-09
    • PCT/GB2008/000684
    • 2008-02-29
    • ZIPHER LIMITEDMCNESTRY, Martin
    • MCNESTRY, Martin
    • B41J33/34G11B15/43
    • B41J33/34G11B15/43G11B15/46
    • A tape drive comprising two motors (12, 13), two tape spool supports on which, spools (3, 4) of tape may be mounted, each spool being drivable by a respective one of said motors, and a controller (14) for controlling the energisation of the motors such that the tape may be transported in at least one direction between spools mounted on the spool supports. The controller is configured to store a plurality of motor control data items, each data item being associated with a respective tension value. The controller is operative to monitor tension.in a tape being transported between spools mounted on the spool supports, read a motor control data item based upon said monitored tension, generate a motor control signal based upon said read motor control data item, and apply said motor control signal to at least one of the motors.
    • 一种带驱动器,包括两个马达(12,13),两个带卷轴支撑件,其上可安装卷轴(3,4),每个卷轴可由相应的一个所述马达驱动;以及控制器(14),用于 控制电机的通电,使得带可以在安装在线轴支撑件上的线轴之间的至少一个方向上传送。 控制器被配置为存储多个电动机控制数据项,每个数据项与相应的张力值相关联。 所述控制器用于监视在安装在所述线轴支撑件上的卷轴之间传送的带子上的张力,基于所述监测张力读取马达控制数据项,基于所述读取的马达控制数据项产生马达控制信号,并且将所述 马达控制信号到至少一个马达。
    • 4. 发明申请
    • DIGITAL VCR WITH TRICK PLAY IMAGE CONTROL
    • 数字录像机与快速播放图像控制
    • WO1995028801A1
    • 1995-10-26
    • PCT/IB1995000229
    • 1995-04-03
    • RCA THOMSON LICENSING CORPORATIONSAEKI, Tomoki
    • RCA THOMSON LICENSING CORPORATION
    • H04N05/78
    • H04N21/4147G11B5/0086G11B15/125G11B15/1875G11B15/46G11B15/4671G11B27/005G11B2220/90H04N5/78263H04N5/78266H04N5/783H04N5/9262H04N5/9268H04N5/945H04N9/8042H04N9/8227
    • A digital video cassette recorder (350) operates by the selection of predetermined replay speeds and the allocation of specific locations within each track from which data may be reproduced. These specific track locations are utilized during recording to place advance television image data for reproduction during "Trick Play" operation. The "Trick Play" image data (353) is also reproduced during normal playback but may not be utilized. The specific track locations are selected to facilitate "Trick Play" operation at a plurality of speeds in both forward and reverse directions. Since the advanced television signal comprises a plurality of predicted frames, transition from "Trick Play" to normal speed replay requires a control function which is responsive to the reproduction, at normal replay speed, of an interframe coded frame. Various methods of reproduced image transition are used for selecting both to and from "Trick Play" reproduction.
    • 数字录像机(350)通过选择预定的播放速度以及可以再现数据的每个轨道内的特定位置的分配来操作。 这些特定的轨道位置在记录期间被利用以在“Trick播放”操作期间放置用于再现的电视图像数据。 “特技播放”图像数据(353)也在正常播放期间再现,但可能不被使用。 选择特定轨道位置以便于在向前和向后两个方向上的多个速度下进行“Trick Play”操作。 由于高级电视信号包括多个预测帧,因此从“特技播放”转换到正常速度重放需要一种控制功能,该控制功能响应于以正常重放速度再现帧间编码帧。 再现图像转换的各种方法用于从“特技播放”复制中进行选择。
    • 5. 发明申请
    • TAPE TRANSPORT
    • 胶带运输
    • WO1990001770A1
    • 1990-02-22
    • PCT/JP1989000790
    • 1989-08-01
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.WAKIYAMA, KojiOTA, Kiyoshi
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • G11B15/46
    • G11B15/46G11B15/48G11B15/54
    • A recording/reproducing apparatus using a tape medium comprising two reels (1a), (1b) for winding and sending the tape, drive means (2a) and (2b) for driving the reels (1a) and (1b), tape speed detect means (3) that produces speed data on the tape, a periodical desired value circuit (41) for producing a desired speed value of the tape, a tape speed error detecting means (5) for producing an error quantity between the output of the tape speed detector means (3) and the output of the periodic desired value circuit (41), and a drive side determining means (6) which sends a drive instruction to the reel of the winding side at the time of acceleration and which, at the time of deceleration, sends a drive instruction corresponding to the output of the tape speed error detecting means (5) to the reel of the sending side, in order to control the tape speed by driving the reels. The deceleration torque is now applied to the reel of the sending side that could not be applied to the reel of the winding side since the tape slackens. Therefore, the tape speed can now be decelerated within short periods of time, and the tape transport enables the speed of the tape to be accelerated or decelerated stably at all times through the same processing.
    • 6. 发明申请
    • TAPE DRIVE AND TRANSFER PRINTER
    • 磁带驱动器和传输打印机
    • WO2015059449A1
    • 2015-04-30
    • PCT/GB2014/053104
    • 2014-10-16
    • VIDEOJET TECHNOLOGIES INC.
    • HART, PhilipBUXTON, Keith
    • B41J33/34B65H23/18G11B15/46B41J17/02
    • B41J33/16B41J2/325B41J17/02B41J33/34G11B15/32G11B15/46
    • A tape drive comprising: first and second motors (3b, 4b); first and second spool supports (3a, 4a), respectively receiving first and second spools of tape (3, 4), the first spool support (3a) being driveable by the first motor (3b) and the second spool support (4a) being drivable by the second motor (4b); a sensor (5a) arranged to provide a signal indicative of linear movement of tape (2) between the tape spools along a predetermined tape path; a controller (9) arranged to control energization of said first and second motors (3b, 4b) for transport of the tape in at least one direction between the first and second spools of tape along the predetermined tape path; wherein the controller is arranged to generate data indicating the diameter of said first and second spools of tape based upon said signal provided by the sensor and data indicating rotation of each of said first and second spools.
    • 一种磁带驱动器,包括:第一和第二电动机(3b,4b); 第一和第二卷轴支撑件(3a,4a),分别容纳第一和第二卷轴(3,4),第一卷轴支撑件(3a)可由第一马达(3b)驱动,第二卷轴支撑件(4a)是 可由第二马达(4b)驱动; 传感器(5a),布置成沿着预定的磁带路径提供指示磁带卷轴之间的带(2)的线性移动的信号; 控制器(9),其布置成控制所述第一和第二马达(3b,4b)的通电,以沿着预定的带路径在带的第一和第二卷轴之间的至少一个方向上传送带; 其中所述控制器被布置成基于由所述传感器提供的所述信号和指示所述第一和第二卷轴中的每一个的旋转的数据产生指示所述第一和第二卷轴的直径的数据。
    • 8. 发明申请
    • TAPE DRIVE
    • 磁带驱动器
    • WO2008107642A1
    • 2008-09-12
    • PCT/GB2008/000686
    • 2008-02-29
    • ZIPHER LIMITEDMCNESTRY, MartinBUXTON, KeithYUNDT, George, Borkey
    • MCNESTRY, MartinBUXTON, KeithYUNDT, George, Borkey
    • B41J33/34
    • B41J33/34G11B15/43G11B15/46
    • A tape drive comprising two position-controlled motors (12, 13), at least one of which is a closed-loop position-controlled motor, two tape spool supports on which spools (3, 4) of tape may be mounted, each spool being drivable by a respective one of said motors, and a controller (14) for controlling the energisation of the motors such that the tape may be transported in at least one direction between spools mounted on the spool supports. The controller is operative to energise both motors to drive the spools of tape in the direction of tape transport, to monitor tension in a tape being transported between spools mounted on the spool supports and to control the motors to maintain the monitored -tension between predetermined limits.
    • 一种磁带驱动器,包括两个位置控制电动机(12,13),其中至少一个是闭环位置控制的电动机,两个磁带卷轴支撑件,可安装卷轴(3,4),每个卷轴 可由相应的一个所述电动机驱动;以及控制器(14),用于控制电动机的通电,使得磁带可以在安装在卷轴支撑件上的卷轴之间沿至少一个方向传送。 控制器可操作以激励两个电动机沿着磁带传送的方向驱动胶带卷轴,以监测在安装在卷轴支撑件上的卷轴之间传输的胶带中的张力,并控制电机将监视的张力保持在预定的限度之间 。