公开(公告)号：US06757123B2

公开(公告)日：2004-06-29

申请号：US10051894

申请日：2002-01-16

申请人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

发明人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

IPC分类号： G11B1518

CPC分类号： G11B27/36 ,  G11B5/41 ,  G11B5/53 ,  G11B19/04 ,  G11B2220/90

摘要： According to the invention, techniques for cleaning a rotary magneto-resistive head. Embodiments according to the invention are especially useful in tape drive systems, and the like. Embodiments can provide methods and apparatus for cleaning contaminant from rotary magneto-resistive heads while guarding against damage to the head from excess cleaning, and the like. Specific embodiments can control the rotational speed of a rotary magneto-resistive head in order to facilitate cleaning operations. Embodiments include a cleaning device and a control method, and are suited for use in a magneto-resistive head mounted on a rotary cylinder of a computer tape storage unit, for example, although application of the present invention is not limited to such embodiments.

摘要翻译： 根据本发明，用于清洁旋转磁阻头的技术。 根据本发明的实施例在带驱动系统等中是特别有用的。 实施例可以提供用于从旋转磁阻头读取污染物的方法和装置，同时防止由于过度清洁而损坏头部等。 具体实施例可以控制旋转磁阻头的旋转速度，以便于清洁操作。 实施例包括清洁装置和控制方法，并且适用于安装在计算机磁带存储单元的旋转圆筒上的磁阻头，例如，尽管本发明的应用不限于这些实施例。

公开(公告)号：US6078464A

公开(公告)日：2000-06-20

申请号：US622380

申请日：1996-03-27

申请人： Hidekazu Takeda ,  Shinya Fujimori ,  Kenmei Masuda ,  Atsushi Inoue ,  Fukuyasu Abe ,  Hisashi Ichikawa ,  Masashi Ueda ,  Yoshiharu Yamashita ,  Kazuyuki Kodama

发明人： Hidekazu Takeda ,  Shinya Fujimori ,  Kenmei Masuda ,  Atsushi Inoue ,  Fukuyasu Abe ,  Hisashi Ichikawa ,  Masashi Ueda ,  Yoshiharu Yamashita ,  Kazuyuki Kodama

IPC分类号： G11B15/61 ,  G11B25/06

CPC分类号： G11B25/063 ,  G11B15/61

摘要： A drum base according to he invention, on which a drum of a magnetic tape recorder is mounted, comprises a substantially annular frame having a fixing surface to which the drum is fixed; at least one through hole extending through the fixing surface for allowing a screw which is to be threadably attached to a threaded hole formed in the drum to pass therethrough; and a pair of mounting surfaces provided on the fixing surface on which the drum is mounted, the mounting surfaces being located adjacent to the at least one through hole so as to have a symmetrical relationship in a circumferential direction of the annular frame with respect to the at least one through hole and within a range of a diameter dimension of the at least one through hole in a radial direction of the annular frame.

摘要翻译： 根据本发明的鼓座，其上安装有磁带录音机的鼓，包括具有固定表面的大致环形的框架，滚筒固定到该固定表面上; 至少一个穿过所述固定表面的通孔，用于允许螺纹连接到形成在所述滚筒中的螺纹孔的螺钉通过; 以及设置在所述固定表面上的一对安装表面，所述安装表面安置在所述固定表面上，所述安装表面邻近所述至少一个通孔定位，以便在所述环形框架的圆周方向上相对于所述至少一个通孔具有对称关系 至少一个通孔并且在所述环形框架的径向方向上的所述至少一个通孔的直径尺寸的范围内。

公开(公告)号：US4814910A

公开(公告)日：1989-03-21

申请号：US54864

申请日：1987-05-27

申请人： Nobuyuki Kaku ,  Kenmei Masuda ,  Isamu Tsubono

发明人： Nobuyuki Kaku ,  Kenmei Masuda ,  Isamu Tsubono

IPC分类号： G11B5/52 ,  G11B5/53 ,  G11B15/61 ,  G11B15/665 ,  G11B15/66

CPC分类号： G11B5/53 ,  G11B15/615 ,  G11B15/6653

摘要： A rotating magnetic head device in a magnetic recording and reproducing apparatus constructed as follows:(1) A cylinder is composed of an upper fixed cylinder and a lower fixed cylinder, a recess is provided in the part of the upper fixed cylinder where a magnetic tape is not wound, and an inner lid, a top case or the like of the tape cassette is arranged (inserted) in the recess in overlapping fashion, thereby making it possible to reduce the size of the apparatus.(2) A stator base which has a surface parallel to a rotary disc having magnetic heads placed thereon and which holds a clearance from the rotary member is disposed on the side of the rotary disc closer to the lower fixed cylinder, thereby to magnetically shield a rotary transformer unit from various electromagnetic components and to prevent the degradation of the signal-to-noise ratio of signal transmission attributed to the compaction of the apparatus, and further, various members are received within the lower fixed cylinder, thereby making it possible to heighten the packaging density of the received members and to reduce the size of the apparatus.

摘要翻译： 一种磁记录和再现装置中的旋转磁头装置，其结构如下：（1）气缸由上固定筒和下固定筒构成，在上固定筒的一部分设有凹部，其中磁带 没有卷绕，并且盒式磁带的内盖，顶壳等以重叠的方式布置（插入）在凹槽中，从而可以减小设备的尺寸。 （2）具有表面平行于旋转盘的表面的定子基座设置在旋转盘的靠近下固定筒的一侧，从而磁屏蔽 来自各种电磁部件的旋转变压器单元，并且防止由于设备的压实引起的信号传输的信噪比的劣化，并且进一步，各种构件被接收在下固定筒内，从而可以提高 接收的构件的包装密度并减小设备的尺寸。

公开(公告)号：US6108165A

公开(公告)日：2000-08-22

申请号：US199160

申请日：1998-11-25

申请人： Hideki Maruyama ,  Kenmei Masuda ,  Kuniaki Hirayama ,  Yoshio Uemura ,  Toshihiko Imachi ,  Kenkichi Inada ,  Toshio Tsuchiya

发明人： Hideki Maruyama ,  Kenmei Masuda ,  Kuniaki Hirayama ,  Yoshio Uemura ,  Toshihiko Imachi ,  Kenkichi Inada ,  Toshio Tsuchiya

IPC分类号： G11B5/53 ,  G11B15/61

CPC分类号： G11B15/61

摘要： An arrangement is designed to achieve satisfactory tape contact by setting a specific ratio for the width of a drum window and the head length of a double azimuth head. The head length L is defined as the distance from the front end of the preceding head to the back end of the succeeding head. When the drum window width W is defined as the distance of the drum window in the rotary direction, the preceding head and the succeeding head are arranged within the drum window to satisfy the relation 1.15 L.ltoreq.W.ltoreq.1.28 L. When the space S1 is defined as the distance from the front end of the preceding head to the front end of the drum window, and the space S2 is defined as the distance from the back end of the succeeding head to the back end of the drum window, the preceding head and the succeeding head are arranged within the drum window to satisfy the relation 0.075 L.ltoreq.S1.ltoreq.0.14 L and 0.075 L.ltoreq.S2.ltoreq.0.14 L. According to this arrangement, the magnetic tape intrudes preferably into the space between the double azimuth head and the drum window. The magnetic tape envelopes and contacts the head surface, so that the tendency for a spacing to occur between the head and the tape is suppressed. The reproducing output is increased and stabilized in this way.

摘要翻译： 设计一种布置，通过设置鼓窗宽度和双方位头的头部长度的特定比例来实现令人满意的胶带接触。 头部长度L被定义为从前一个头部的前端到随后头部的后端的距离。 当滚筒窗口宽度W被定义为滚筒窗口在旋转方向上的距离时，先前的头部和后面的头部被布置在滚筒窗口内以满足关系1.15L

公开(公告)号：US5978185A

公开(公告)日：1999-11-02

申请号：US773631

申请日：1996-12-23

申请人： Fukuyasu Abe ,  Kenmei Masuda ,  Shinya Fujimori ,  Hidekazu Takeda ,  Atsushi Inoue ,  Yoshiharu Yamashita ,  Kuniaki Hirayama ,  Yoshio Uemura ,  Masahiko Fujishiro ,  Toshihiko Imachi

发明人： Fukuyasu Abe ,  Kenmei Masuda ,  Shinya Fujimori ,  Hidekazu Takeda ,  Atsushi Inoue ,  Yoshiharu Yamashita ,  Kuniaki Hirayama ,  Yoshio Uemura ,  Masahiko Fujishiro ,  Toshihiko Imachi

IPC分类号： G11B5/187 ,  G11B5/53 ,  G11B15/61 ,  G11B15/64

CPC分类号： G11B15/61 ,  G11B15/64 ,  G11B5/531 ,  G11B5/534 ,  G11B5/1871

摘要： Disclosed in an arrangement to achieve satisfactory head contact by increasing contact face pressure at a head gap and to reduce the change in time of head contact performance in a double azimuth head. Heads in a portion in which a tape is slid are respectively constructed with each head having two different arcs with a radius of curvature R1 in a first area which includes a gap, and with a radius of curvature R2 in a second area which is adjacent to the first area. A transition portion P for transitioning an arc with the radius of curvature R1 and an arc with the radius of curvature R2 is located in the direction of its adjacent head based upon a contact point Q on R1 of a common tangent drawn from an arc forming a periphery of a rotating drum to a circle formed by R1. The relationship between the radiuses of curvature in two areas is set to R1>R2. As the area in which a tape is in contact can be reduced, contact face pressure by the tape on a gap can be increased, satisfactory head contact can be obtained and as a contact area with a tape is wide to some extent, a change in time of contact performance can be reduced.

摘要翻译： 公开了通过增加头部间隙处的接触面压力来实现令人满意的头部接触的装置，并且减少双方位头部中的头部接触性能的时间变化。 分别构成带子滑动部分的头部，每个头部在具有间隙的第一区域中具有曲率半径R1的两个不同的弧，并且在与第二区域相邻的第二区域中具有曲率半径R2 第一个区域。 用于使具有曲率半径R1的圆弧和具有曲率半径R2的弧的过渡部分P基于R1上的接触点Q位于其相邻头部的方向上，该接触点Q从形成 旋转鼓的周边由R1形成的圆。 两个区域的曲率半径之间的关系设置为R1> R2。 随着胶带接触的区域可以减小，可以增加带上间隙的接触面压力，可以获得令人满意的头部接触，并且由于与带的接触面积在一定程度上是宽的， 可以减少接触性能的时间。

公开(公告)号：US5734537A

公开(公告)日：1998-03-31

申请号：US652271

申请日：1996-05-23

申请人： Seiji Ono ,  Kenmei Masuda ,  Hidekazu Takeda ,  Atsushi Inoue ,  Nobuo Masuoka ,  Noboru Katohno ,  Makoto Ibe ,  Kuniaki Hirayama ,  Kiyokazu Watanabe

发明人： Seiji Ono ,  Kenmei Masuda ,  Hidekazu Takeda ,  Atsushi Inoue ,  Nobuo Masuoka ,  Noboru Katohno ,  Makoto Ibe ,  Kuniaki Hirayama ,  Kiyokazu Watanabe

IPC分类号： G11B15/61

CPC分类号： G11B15/61

摘要： In a rotary head drum of a recording/reproduction apparatus, for smoothly holding a magnetic tape over a guide step provided on a lower drum to guide the magnetic tape, part of a chamfer formed in the guide step is formed as a large chamfer in which a chamfered amount is larger than that of the remaining part of the chamfer. With the provision of the large chamfer, even if the lower edge of the magnetic tape deviates from the guide step when the tape is wound over or unwound from the drum, damages of the magnetic tape can be prevented. Therefore, the position and attitude control of tape withdrawing members can be greatly simplified and the magnetic tape can always run stably while being restricted in its position by the guide step. In the process of machining a tape running surface on the drum, by increasing the feed distance of a blade in the part of the chamfer where the large chamfer is to be formed by chamfering the guide step with a large chamfered amount, in comparison with the feed distance set in the remaining part of the chamfer, the large chamfer and the small chamfer can be both machined at the same time, resulting in simplified machining steps.

摘要翻译： 在记录/再现装置的旋转磁头鼓中，为了平滑地将磁带保持在设置在下磁鼓上的引导台上以引导磁带，形成在引导步骤中的倒角的一部分形成为大倒角，其中 倒角量大于倒角剩余部分的倒角量。 通过设置大倒角，即使当磁带从磁鼓卷绕或退绕时磁带的下边缘偏离引导步骤，也可以防止磁带的损坏。 因此，能够极大地简化卷取装置的位置和姿势控制，并且通过引导步骤限制在其位置，磁带总是可以稳定地运行。 在加工滚筒上的带子运行表面的过程中，通过在倒角部分中增加叶片的进给距离，通过以较大的倒角量倒角引导台阶，形成大倒角的部分，与 在倒角的剩余部分设置的进给距离，大倒角和小倒角可以同时加工，从而简化了加工步骤。

公开(公告)号：US5687047A

公开(公告)日：1997-11-11

申请号：US677779

申请日：1996-07-10

申请人： Hikaru Mizutani ,  Mikihisa Inoue ,  Kenmei Masuda ,  Hidekazu Takeda

发明人： Hikaru Mizutani ,  Mikihisa Inoue ,  Kenmei Masuda ,  Hidekazu Takeda

IPC分类号： G11B23/02 ,  G11B23/087 ,  G03B23/02 ,  G11B23/04

CPC分类号： G11B23/08735

摘要： A magnetic tape cartridge includes a casing having a tape chamber defined therein for accommodating a reeled magnetic recording tape and, also, box arms protruding outwardly from a front wall section of the casing so as to leave a loading bay that opens upwardly, frontwardly and downwardly and is thus delimited by upwardly, frontwardly and downwardly oriented open areas. The casing includes a lid assembly for selectively concealing and exposing that portion of magnetic recording tape and including front, top and rear lids operatively linked together. The front and top lids are adapted to selectively open and close the frontwardly and upwardly oriented open areas of the loading bay, respectively, while the rear lid is positioned within the loading bay and adapted to selectively open and close a space delimited between the front and the rear lid. At least first and second, generally cylindrical bosses extend between the top and bottom panels of the casing and are positioned at respective points of intersection between inner side walls of the box arms, which confront the loading bay, and the front wall section so as to partially protrude laterally into the loading bay. Each boss has a positioning hole defined axially therein so as to extend exteriorly through one of the top and bottom walls of the casing and is comprised of upper and lower boss segments aligned axially with each other. The upper boss segment has an outer diameter smaller than that of the lower boss segment.

摘要翻译： 磁带盒包括壳体，其具有限定在其中的带室，用于容纳卷绕的磁记录带，以及从壳体的前壁部分向外突出的盒臂，以便离开装载室，其向上，向前和向下打开 并且因此由向上，向前和向下定向的开放区域限定。 壳体包括用于选择性地隐藏和暴露磁记录带的该部分并且包括可操作地连接在一起的前盖，顶盖和后盖的盖组件。 前盖和顶盖适于分别选择性地打开和关闭装载舱的前向和向上定向的开放区域，同时后盖位于装载舱内，并适于选择性地打开和关闭在前部和 后盖。 至少第一和第二，通常为圆柱形的凸台在壳体的顶部和底部面板之间延伸，并且被定位在盒臂的内侧壁之间的相对的交叉点处，其与加载间隔面和前壁部分相交，以便 部分地横向突出到装载舱中。 每个凸台具有轴向限定的定位孔，以便在壳体的顶壁和底壁中的一个外部延伸，并且包括彼此轴向对准的上和下凸台部分。 上凸台段的外径小于下凸台段的外径。

公开(公告)号：US5495371A

公开(公告)日：1996-02-27

申请号：US158315

申请日：1993-11-29

申请人： Takayuki Munemoto ,  Kazuo Sakai ,  Fujio Tajima ,  Tomokazu Ishii ,  Fumio Takeda ,  Kouetsu Okuyama ,  Takeshi Itoh ,  Shigeyuki Kobata ,  Kenmei Masuda ,  Shigemitsu Higuchi

发明人： Takayuki Munemoto ,  Kazuo Sakai ,  Fujio Tajima ,  Tomokazu Ishii ,  Fumio Takeda ,  Kouetsu Okuyama ,  Takeshi Itoh ,  Shigeyuki Kobata ,  Kenmei Masuda ,  Shigemitsu Higuchi

IPC分类号： G11B5/455 ,  G11B5/41 ,  G11B15/02 ,  G11B15/68 ,  G11B23/02 ,  G11B23/50 ,  G11B27/00 ,  G11B33/10 ,  G11B15/18

CPC分类号： G11B15/689 ,  G11B15/026 ,  G11B23/021 ,  G11B23/502 ,  G11B27/002 ,  G11B33/10 ,  G11B5/41 ,  G11B15/68

摘要： A magnetic recording and reproducing device and a magnetic tape library device are provided for properly recovering a function and issuing a warning when a failure of a magnetic head of the device takes place because of wear and dirt of the magnetic head. Further, a method for maintaining the magnetic head is provided. A wear sensor and a dirt sensor are prepared for sensing a wear amount of a state of dirt of the magnetic head. A head check controller operates to determine the wear amount of the magnetic head and the state of dirt based on the sensed result. In accordance with the determined result, the warning device is started for taking a precaution of preventing a head failure. As one aspect, the tape library device instructs to load the cleaning tape using a robot.

摘要翻译： 提供磁记录和再现装置和磁带库装置，用于当由于磁头的磨损和污物而发生装置的磁头发生故障时适当地恢复功能并发出警告。 此外，提供了一种用于保持磁头的方法。 准备了磨损传感器和污物传感器，用于感测磁头污垢状态的磨损量。 头部检查控制器基于感测结果来操作以确定磁头的磨损量和污物的状态。 根据确定的结果，启动警告装置以防止头部故障的预防。 作为一个方面，磁带库装置指示使用机器人装载清洁带。

公开(公告)号：US06867938B2

公开(公告)日：2005-03-15

申请号：US10301472

申请日：2002-11-20

申请人： Shigeru Yamazaki ,  Kenmei Masuda

发明人： Shigeru Yamazaki ,  Kenmei Masuda

IPC分类号： G11B5/00 ,  G11B5/008 ,  G11B5/035 ,  G11B5/09 ,  G11B5/53 ,  G11B20/10

CPC分类号： G11B5/0086 ,  G11B5/035 ,  G11B5/09 ,  G11B5/53 ,  G11B20/10 ,  G11B2005/0016

摘要： A digital information reproducing apparatus using rotary heads that reproduces digital information signals recorded on a magnetic tape using magneto resistive heads installed on a rotary drum. The apparatus includes, in the fixed side of the apparatus, a magnetic tape checking circuit that checks the type of the magnetic tape; and a control signal generation circuit that generates a control signal for controlling the gain of a reproduction amplifier circuit; and on the rotary drum, a decoder circuit that identifies the control signal transmitted from the control signal generation circuit. The control signal generation circuit generates the control signal based on a checking result given by the magnetic tape checking circuit, and the decoder circuit identifies the transmitted control signal to control the gain of the reproduction amplifier circuit.

摘要翻译： 一种使用旋转磁头的数字信息再现装置，其使用安装在旋转磁鼓上的磁阻头，再现记录在磁带上的数字信息信号。 该装置在装置的固定侧包括检查磁带类型的磁带检查电路; 以及控制信号生成电路，其生成用于控制再现放大电路的增益的控制信号; 并且在旋转磁鼓上，识别从控制信号发生电路发送的控制信号的解码器电路。 控制信号生成电路基于由磁带检查电路给出的检查结果生成控制信号，并且解码器电路识别发送的控制信号以控制再现放大器电路的增益。

公开(公告)号：US06654194B1

公开(公告)日：2003-11-25

申请号：US09631612

申请日：2000-08-04

申请人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

发明人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

IPC分类号： G11B1902

CPC分类号： G11B27/36 ,  G11B5/41 ,  G11B5/53 ,  G11B19/04 ,  G11B2220/90

摘要： According to the invention, techniques for cleaning a rotary magneto-resistive head. Embodiments according to the invention are especially useful in tape drive systems, and the like. Embodiments can provide methods and apparatus for cleaning contaminant from rotary magneto-resistive heads while guarding against damage to the head from excess cleaning, and the like. Specific embodiments can control the rotational speed of a rotary magneto-resistive head in order to facilitate cleaning operations. Embodiments include a cleaning device and a control method, and are suited for use in a magneto-resistive head mounted on a rotary cylinder of a computer tape storage unit, for example, although application of the present invention is not limited to such embodiments.

摘要翻译： 根据本发明，用于清洁旋转磁阻头的技术。 根据本发明的实施例在带驱动系统等中是特别有用的。 实施例可以提供用于从旋转磁阻头读取污染物的方法和装置，同时防止由于过度清洁而损坏头部等。 具体实施例可以控制旋转磁阻头的旋转速度，以便于清洁操作。 实施例包括清洁装置和控制方法，并且适用于安装在计算机磁带存储单元的旋转磁盘上的磁阻头，例如，尽管本发明的应用不限于这些实施例。