利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.025 秒)

    Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape
    3.
    发明授权
    Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape 失效
    用于控制磁带张力的磁记录和重放装置

    公开(公告)号：US5947402A

    公开(公告)日：1999-09-07

    申请号：US899203

    申请日：1997-07-23

    申请人： Eiji Yokoyama ,  Masato Nagasawa ,  Kazuo Mori ,  Seiji Kishikawa ,  Masami Tomita ,  Nobuzumi Kurihara

    发明人： Eiji Yokoyama ,  Masato Nagasawa ,  Kazuo Mori ,  Seiji Kishikawa ,  Masami Tomita ,  Nobuzumi Kurihara

    IPC分类号： H04N5/783 ,  G11B5/584 ,  G11B5/588 ,  G11B15/43 ,  G11B15/473 ,  G11B15/56 ,  G11B15/60 ,  G11B15/61 ,  G11B15/46 ,  G11B23/42

    CPC分类号： G11B15/43 ,  G11B15/473 ,  G11B15/56 ,  G11B15/602 ,  G11B15/61 ,  G11B5/588

    摘要： A magnetic recording and reproducing apparatus for recording a desired sound or picture signal to a magnetic tape by a magnetic head. At the time of normal-speed recording and reproduction, the magnetic tape is taken up at a constant speed, but by changing the tape travelling speed of the tape on the rotary drum, DTF control and high-speed noiseless reproduction are enabled. The tension of the tape on the entrance side of the rotary drum is controlled to a desired value. This apparatus includes a tape tension actuator and a tape drawing actuator on the entrance side and on the exit side, respectively, of the rotary drum. In DTF control, both tape actuators correct a tracking error of the tape in cooperation with each other. In high-speed noiseless reproduction, both tape actuators are differentially driven so as to lower the tape travelling speed on the rotary drum. Both tape actuators are driven in feedback control using the modern control.

    摘要翻译： 一种用于通过磁头将期望的声音或图像信号记录到磁带的磁记录和重放装置。 在正常速度记录和再现时，磁带以恒定速度被采集，但是通过改变旋转磁鼓上的磁带的磁带行进速度，可以进行DTF控制和高速无噪声再现。 将旋转鼓入口侧的胶带的张力控制在期望值。 该装置包括分别在旋转鼓的入口侧和出口侧的带张力致动器和带拉动致动器。 在DTF控制中，两个磁带执行器彼此协调地校正磁带的跟踪误差。 在高速无声再现中，两个磁带致动器被差动驱动，以便降低旋转磁鼓上的磁带行进速度。 两个磁带执行机构均采用现代控制器进行反馈控制。

    Magnetic recording/reproducing apparatus
    5.
    发明授权
    Magnetic recording/reproducing apparatus 失效
    磁记录/再现装置

    公开(公告)号：US5734520A

    公开(公告)日：1998-03-31

    申请号：US536462

    申请日：1995-09-29

    申请人： Yasuhiro Okuda ,  Toshiro Tsukahara ,  Hirofumi Matsuo ,  Nobuzumi Kurihara ,  Kiyoshi Yanagiguchi

    发明人： Yasuhiro Okuda ,  Toshiro Tsukahara ,  Hirofumi Matsuo ,  Nobuzumi Kurihara ,  Kiyoshi Yanagiguchi

    IPC分类号： G11B15/07 ,  G11B15/665 ,  G11B23/087 ,  G11B25/06 ,  G11B5/027 ,  G11B5/008

    CPC分类号： G11B15/6656 ,  G11B15/07 ,  G11B23/08714 ,  G11B25/066

    摘要： A magnetic recording/reproducing apparatus being able to use a normal-sized cassette and a small sized cassette according to a user's selection. The apparatus comprises a supply reel stand for engaging with a supply reel; a supply reel stand base for supporting the supply reel stand; a take-up reel stand for engaging with a take-up reel; a take-up reel stand base for supporting the take-up reel stand; a reel stand displacing mechanism for displacing the supply reel stand base and the take-up reel stand base according to a size of the normal-sized cassette and a size of the small sized cassette. The reel stand displacing mechanism displaces the supply reel stand base and the take-up reel stand base by using a drive force transmitted from the tape loading mechanism.

    摘要翻译： 磁记录/再现装置能够根据用户的选择使用标准尺寸的盒式磁带和小型盒式磁带。 该装置包括用于与供带盘啮合的供带盘架; 用于支撑供带盘支架的供带盘架; 用于与卷取卷轴接合的卷带架; 用于支撑卷带架的卷带架; 卷盘架移动机构，用于根据正常尺寸的盒子的尺寸和小尺寸的盒子的尺寸来移动供带盘架基座和卷取托架底座。 卷盘架移动机构通过使用从带装载机构传递的驱动力来移动供带盘架基座和卷带架座。

    Magnetic recording and reproducing device having no moveable slanting posts
    6.
    发明授权
    Magnetic recording and reproducing device having no moveable slanting posts 失效
    不具有可移动倾斜柱的磁记录和再现装置

    公开(公告)号：US5638231A

    公开(公告)日：1997-06-10

    申请号：US250497

    申请日：1994-05-27

    申请人： Yasuhiro Okuda ,  Syosuke Oka ,  Nobuzumi Kurihara

    发明人： Yasuhiro Okuda ,  Syosuke Oka ,  Nobuzumi Kurihara

    IPC分类号： G11B15/29 ,  G11B15/60 ,  G11B15/61 ,  G11B15/665 ,  G11B5/027

    CPC分类号： G11B15/6656

    摘要： A magnetic recording and reproducing device comprises a tape guide mechanism for taking up the tape within the cassette when unloaded state, and withdrawing the tape from the cassette so as to wind the tape on the rotary head drum when loaded state. The mechanism comprises a first guide slot, a first moving member, and a first guide roller provided on the first moving member. The center line of the tape wound on the first guide roller lies in the reference plane. The mechanism comprises a second guide slot provided on take-up reel side and having a slanting part, a second moving member, and a second guide roller provided on the second moving member. The second guide roller rotates about a second axis having a predetermined tilt angle and a predetermined direction angle so that the center line of the tape is situated lower than the reference plane, is wound from the rotary head drum so that the center line of the tape is oriented toward the reference plane. The mechanism comprises a slanting post fixed to the deck base at a predetermined tilt angle and a predetermined direction angle such that, the tape on the take-up reel side of the second guide roller is wound so that it advances parallel to the x-y plane with the center line lying in the reference plane.

    摘要翻译： 一种磁记录和再现装置，包括一个带引导机构，用于在卸载状态下卷取磁带内的磁带，并从磁带上取出磁带，以便在加载状态时将磁带卷绕在旋转磁头磁鼓上。 该机构包括设置在第一移动构件上的第一引导槽，第一移动构件和第一引导辊。 缠绕在第一导辊上的胶带的中心线位于参考平面中。 该机构包括设置在卷取卷轴侧的第二引导槽，具有设置在第二移动部件上的倾斜部，第二移动部件和第二引导辊。 第二引导辊围绕具有预定倾斜角度和预定方向角度的第二轴旋转，使得带的中心线位于比参考平面低的位置，从旋转磁头鼓卷绕，使得磁带的中心线 面向参考平面。 该机构包括以预定倾斜角度和预定方向角度固定到甲板底座的倾斜柱，使得卷绕第二引导辊的卷取卷轴侧的带以使其平行于xy平面前进， 中心线位于参考平面内。