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21.发明公开
公开(公告)号：EP0442660A3
公开(公告)日：1993-02-10
申请号：EP91300989.0
申请日：1991-02-06
CPC分类号： G11B5/6005 , G11B33/14
摘要： The present invention discloses texturing of the slider air bearing surfaces (18a,18b) of the magnetic heads in disk drives to reduce striction that retards take-off and displaces critical lubricant in a magnetic head system. One embodiment utilizes nonuniform etching of chemically identical components of a ferrite slider material due solely to random crystal orientation relative to the exposed surface. Another embodiment utilizes a photoresist of a type used in making printed circuit boards, to form a pattern. Subsequently, the surface may be etched to form the anti-striction properties. A variety of controlled and reproducible patterns as well as a controlled depth of pattern may be utilized.
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22.发明公开Air bearing tape support for guiding tape and sensing tape tension 失效LuftkissenbandträgerfürBandführungundBandspannungsfühlung。
公开(公告)号：EP0144599A2
公开(公告)日：1985-06-19
申请号：EP84111873.0
申请日：1984-10-04
发明人： Callender, Bernard Lowell , Chow, William Wai-Chung , Osterday, Thomas George , Rueger, William John
CPC分类号： G11B15/43 , G11B15/607 , G11B15/64
摘要： A tape support which provides several different functions in a reel-to-reel tape drive is disclosed. The tape support provides means for sensing tension in the tape, buffers or decouples the tape at the magnetic head from any perturbations arising at the take-up reel, and reliably guides the tape along the tape path. the tape travels along an arcuate surface of the tape support (16) on an air bearing. A port (17) in the arcuate surface senses pressure between the tape and the arcuate surface. This pressure is communicated to a transducer (22) which provides an output representing the tension on the tape. Flanges (24) on the ends of the tape support provide guiding of the tape over the air bearing and also provide venting of the air bearing to prevent tape vibration. A purge line (28) expels a gaseous medium out of the sense port thereby keeping the sense port clear of contaminants.
摘要翻译： 公开了一种在卷轴到卷轴磁带驱动器中提供若干不同功能的磁带支架。 磁带支架提供用于感测磁带中的张力的装置，缓冲或解除磁头上的磁带与卷绕卷轴上出现的任何扰动，并且可靠地引导磁带沿磁带路径，磁带沿着磁盘的弧形表面行进 带状支撑件（16）在空气轴承上。 弧形表面中的端口（17）感测带和弓形表面之间的压力。 该压力传递到传感器（22），该传感器提供表示带上的张力的输出。 带子端部上的法兰（24）提供带子在空气轴承上的引导，并且还提供空气轴承的排气以防止带子振动。 吹扫管线（28）将气体介质排出感测端口，从而保持感测端口没有污染物。
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公开(公告)号：EP0646304B1
公开(公告)日：1999-05-12
申请号：EP93913373.2
申请日：1993-06-15
CPC分类号： H04B13/02 , E21B47/121 , F17D5/06
摘要： A sub-sea oil pipeline installation comprising a production platform (10) and sub-sea facilities (15) at a plurality of wellheads (16), has a data transmission system by which data is transmitted in either direction between the master platform (10) and the sub-sea facilities (15) via communication channels formed by the electrically conducting material of the pipelines (12, 14). The data is transmitted in the form of a VLF or ELF electro-magnetic signal which comprises changes of voltage level oscillating about the DC voltage level of the pipe (12, 14) so that the mean level of the signal is the DC voltage level of the pipe (12, 14).
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24.发明公开Method for controlling tape contact pressure and head/tape spacing on a transducer head 失效Wandlerkopf的Verfahren zur Steuerung des Bandkontaktdrucks und des Kopf- / Bandabstandes auf einem
公开(公告)号：EP0883120A1
公开(公告)日：1998-12-09
申请号：EP98100846.9
申请日：1998-01-19
发明人： Poorman, Paul W.
CPC分类号： G11B15/62
摘要： A system and method for controlling contact pressure and spacing between a tape (20) and a tape head (15) includes means for determining a tape speed of the tape (20) across the tape head (15) and means for controlling a tape tension of the tape (20) as a function of the tape speed. The function is either linear (100) or non-linear (105). However, a higher velocity will result in a higher tension and a lower velocity will result in a lower tension. The means for determining the tape speed is preferably a tape controller (25). The means for controlling the tape tension preferably includes first and second tape reels (30, 35) driven by first and second tape reel motors (40, 45). A first end of the tape (20) is attached to the first tape reel (30) and a second end of the tape (20) is attached to the second tape reel (35). The first tape reel motor (40) applies a torque to the first tape reel (30) pulling the tape (20) in a first direction. The second tape reel motor (45) applies a torque to the second tape reel (35) pulling the tape (20) in an opposite direction. A tension is created in the tape (20) as the tape (20) is pulled in opposite directions.
摘要翻译： 用于控制带（20）和带头（15）之间的接触压力和间隔的系统和方法包括用于确定穿过带头（15）的带（20）的带速度的装置和用于控制带张力的装置 作为带速度的函数的带（20）。 该函数是线性（100）或非线性（105）。 然而，较高的速度将导致较高的张力，较低的速度将导致较低的张力。 用于确定带速度的装置优选地是带控制器（25）。 用于控制带张力的装置优选地包括由第一和第二带盘马达（40,45）驱动的第一和第二带卷轴（30,35）。 带子（20）的第一端附接到第一带盘（30），并且带（20）的第二端附接到第二带卷轴（35）。 第一带盘马达（40）向第一带卷（30）向第一方向拉动带（20）施加扭矩。 第二带盘马达（45）向相反方向拉动带（20）的第二带盘（35）施加扭矩。 当带（20）沿相反方向拉动时，在带（20）中产生张力。
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公开(公告)号：EP0616316B1
公开(公告)日：1998-09-16
申请号：EP94301109.8
申请日：1994-02-16
发明人： Bajorek, Christoper H. , Fontana, Robert E. , Snyder, Clint D. , Thompson, David A. , Williams, Mason L. , Yeack-Scranton, Celia E.
CPC分类号： G11B5/3925 , G11B5/10 , G11B5/1272 , G11B5/1278 , G11B5/255 , G11B5/3106 , G11B5/313 , G11B5/3183 , G11B5/3967 , G11B5/484 , G11B17/32 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046
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26.发明公开Method of making a transducer-supension assembly for a magnetic storage device 失效制造用于磁存储设备的换能器 - 悬架组件的方法
公开(公告)号：EP0822540A3
公开(公告)日：1998-02-11
申请号：EP97307860.3
申请日：1994-02-16
发明人： Bajorek, Christopher H. , Fontana, Robert E. , Snyder, Clint D. , Thompson, David A. , Williams, Mason L. , Yeack-Scranton, Celia E.
CPC分类号： G11B5/3925 , G11B5/10 , G11B5/1272 , G11B5/1278 , G11B5/255 , G11B5/3106 , G11B5/313 , G11B5/3183 , G11B5/3967 , G11B5/484 , G11B17/32 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046
摘要： A magnetic transducer and suspension assembly suitable for use in both contact recording and in winchester-type applications is described. A generally rectangular elongated flat suspension member includes a vertical-type inductive read/write transducer formed integrally with the suspension member and is embedded in one end of the suspension member. The vertical inductive transducer is suitable for vertical recording applications. The transducer vertical magnetic pole tip and magnetic yoke structure are formed at one end of the suspension member with the vertical pole tip extending to and exposed at an air bearing surface formed on the lower surface of a slider-shaped protrusion extending from the lower surface of the end of the suspension member. The integral transducer/suspension assembly can be adapted for either flying above the recording media or for use in continuous contact with the recording media. The air bearing surface is formed on the lower surface of a wear pad. The fabrication of the transducer/suspension assembly is adapted to be performed at the wafer level.
摘要翻译： 描述适用于接触记录和温彻斯特型应用的磁性换能器和悬架组件。 通常为矩形的细长扁平悬挂部件包括垂直型感应读/写转换器，该转换器与悬挂部件整体形成，并嵌入悬挂部件的一端。 垂直感应式传感器适用于垂直记录应用。 换能器垂直磁极尖端和磁轭结构形成在悬挂部件的一端，垂直磁极尖端延伸到暴露在形成在从下表面延伸的滑动形突起的下表面上的空气承载表面 悬挂部件的末端。 整体传感器/悬架组件可适用于在记录介质上方飞行或用于与记录介质连续接触。 气垫表面形成在耐磨垫的下表面上。 换能器/悬架组件的制造适于在晶片级执行。
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27.发明公开
公开(公告)号：EP0450313A2
公开(公告)日：1991-10-09
申请号：EP91103145.8
申请日：1991-03-02
CPC分类号： G11B5/6005 , B23K26/1224 , B23K26/361 , G11B5/3103 , G11B5/3106
摘要： Laser etching of a substrate (28) in a liquid (12) is accomplished by laser induced sonic cavitation at the substrate surface. The preferred substrate (28) is laser (22) energy absorbing and has a finite melting temperature. The preferred liquid (12) is an organic or inorganic inert liquid which does not chemically react with the substrate (28) at room temperature. The laser (22) is preferably a copper vapor laser but a chopped beam cw argon ion laser or a YAG laser adjusted to a low power output sufficient to avoid the formation of a recast layer can also be used. The laser (22) parameters are adjusted for causing the growth and collapse of bubbles at the substrate surface. The laser etching has particular application in the fabrication of rails (46) in magnetic head sliders and dicing of Al₂O₃-TiC, TiC, SiC, Si/SiO₂, and laser energy absorbing metal and metal oxides.
摘要翻译： 在液体（12）中的基底（28）的激光蚀刻通过在基底表面处的激光诱导的声空穴实现。 优选的基底（28）是激光（22）能量吸收并且具有有限的熔融温度。 优选的液体（12）是在室温下不与基底（28）发生化学反应的有机或无机惰性液体。 激光器（22）优选是铜蒸气激光器，但是也可以使用调节到足以避免形成重铸层的低功率输出的切碎光束cw氩离子激光器或YAG激光器。 调整激光（22）参数以引起基板表面上气泡的生长和塌陷。 激光蚀刻特别适用于磁头滑块中的导轨（46）的制造和Al2O3-TiC，TiC，SiC，Si / SiO2和激光能量吸收金属和金属氧化物的切割。
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28.发明公开Air bearing surface of head core slider, and method of manufacturing it 失效滑块与磁头芯与被支撑在它的制备表面的空气膜和过程。
公开(公告)号：EP0442660A2
公开(公告)日：1991-08-21
申请号：EP91300989.0
申请日：1991-02-06
CPC分类号： G11B5/6005 , G11B33/14
摘要： The present invention discloses texturing of the slider air bearing surfaces (18a,18b) of the magnetic heads in disk drives to reduce striction that retards take-off and displaces critical lubricant in a magnetic head system. One embodiment utilizes nonuniform etching of chemically identical components of a ferrite slider material due solely to random crystal orientation relative to the exposed surface. Another embodiment utilizes a photoresist of a type used in making printed circuit boards, to form a pattern. Subsequently, the surface may be etched to form the anti-striction properties. A variety of controlled and reproducible patterns as well as a controlled depth of pattern may be utilized.
摘要翻译： 滑块的空气轴承表面的本发明的盘少纹理（18A，18B）中的磁盘驱动器的磁头，以减少磁致伸缩的并延缓起飞和在磁头系统置换临界润滑剂。一个实施例利用化学上相同的部件的非均匀蚀刻 的纯粹由于相对于所述暴露的表面随机晶体取向的铁素体材料滑块。 另一实施例利用在制造印刷电路板所使用的，以形成图案的类型的光致抗蚀剂。 接着，该表面可以被蚀刻以形成反磁致伸缩特性。 各种控制和可重复的模式，以及模式的控制的深度可以被利用。
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29.发明公开
公开(公告)号：EP0258608A1
公开(公告)日：1988-03-09
申请号：EP87110614.2
申请日：1987-07-22
摘要： In Verbindung mit einem Magnetbandgerät, dessen Laufwerk aus Auf- und Abwickelspulen (1, 2), diesen zugeordneten Pufferkammern (3, 4 und 5, 6) und einer einzigen zwischen den Pufferkammern sowie einem Schreib/Lesekopf (7) benachbart angeordneten, in ihrer Laufrichtung umsteuerbaren Bandantriebsrolle (8) besteht, ist eine Einrichtung zur Dämpfung vorgesehen, die lokalen Verformungen des Magnetbandes (9) im Bereich des Kopfspiegels des Magnetkopfes entgegenwirkt. Diese Einrichtung besitzt ein Dämpfungselement (11) in Form eines pneumatisch wirksamen Düsenkammes mit einer Mehrzahl von unter Überdruck stehenden Düsen (112, 113). Diese sind längs einer quer zur Transportrichtung (vr) des Magnetbandes (9) verlaufenden Linie (s) derart angeordnet, daß der von ihnen abgegebene Luftstrahl im Bereich der Auflaufkante (74) des Magnetbandes am Spiegel des Magnetkopfes (7) mit einer geringen Kraftkomponente in Bandtransportrichtung (vr) wirkend auftrifft. Eine derartige Dämpfungseinrichtung ist insbesondere für als Digitalspeicher verwendete Magnetbandgeräte der oberen Leistungsklasse mit hohen Bandgeschwindigkeiten geeignet, die ein Lesen sowohl im Vorlauf als auch im Rücklauf ermöglicht.
摘要翻译： 在磁带装置组合中，驱动带和供应卷轴（1,2）与其相关联的缓冲室（3,4和5,6）和所述缓冲室之间的一个，和一个读/写头（7）布置成邻近，在其 方向可逆绞盘（8），是用于阻尼提供一种器件抵消在磁头的头部反射镜的区域中的磁带（9）的局部变形。 该装置具有与在过压下喷嘴（112，113）的多个气动有效喷嘴梳的形式的阻尼元件（11）。 这些沿着横向方向延伸到磁带（9）线（S）的输送方向（VR）被布置成使得这些空气射流的输出在磁带的助跑边缘（74）的区域上的磁头（7）的反射镜，在一个很小的力分量 磁带传送方向（从右侧）作用的事件。 为用作上功率等级的数字存储磁带设备以高的线速度，这允许无论是在流动和在返回读取这样的阻尼装置是特别合适的。
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公开(公告)号：EP0144599A3
公开(公告)日：1987-02-04
申请号：EP84111873
申请日：1984-10-04
发明人： Callender, Bernard Lowell , Chow, William Wai-Chung , Osterday, Thomas George , Rueger, William John
CPC分类号： G11B15/43 , G11B15/607 , G11B15/64
摘要： A tape support which provides several different functions in a reel-to-reel tape drive is disclosed. The tape support provides means for sensing tension in the tape, buffers or decouples the tape at the magnetic head from any perturbations arising at the take-up reel, and reliably guides the tape along the tape path. the tape travels along an arcuate surface of the tape support (16) on an air bearing. A port (17) in the arcuate surface senses pressure between the tape and the arcuate surface. This pressure is communicated to a transducer (22) which provides an output representing the tension on the tape. Flanges (24) on the ends of the tape support provide guiding of the tape over the air bearing and also provide venting of the air bearing to prevent tape vibration. A purge line (28) expels a gaseous medium out of the sense port thereby keeping the sense port clear of contaminants.
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