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11. 发明授权

US5377052A Actuator assembly for servo-controlled magnetic tape head 失效
标题翻译：用于伺服控制磁头的执行机构
公开(公告)号：US5377052A
公开(公告)日：1994-12-27
申请号：US75937
申请日：1993-06-14
申请人： Adolfo M. Guzman , Paul Y. Hu , Alex I. Panasiuk , Loyal K. Whitted
发明人： Adolfo M. Guzman , Paul Y. Hu , Alex I. Panasiuk , Loyal K. Whitted
IPC分类号： G11B5/55 , G11B5/584 , G11B21/02
CPC分类号： G11B5/584 , G11B5/5504 , G11B5/5508
摘要： An actuator assembly is provided for controlling the position of a multi-track, magneto-resistive transducer to index across tracks in a track seek mode and to rapidly adjust the position of the transducer in a servo controlled track following mode. The actuator includes a base, a beam spaced from the base and movable relative thereto, opposing upper and lower flexures in parallel planes connecting upper and lower portions of the base with upper and lower ends, respectively, of the beam, and an electromagnetic drive means. Each flexure comprises a constraining member fastened to and substantially covering a plate. The constraining member has a plurality of voids formed therein. In one embodiment, the voids comprise parallel openings extending through the constraining member; in another embodiment, the voids define a honeycomb structure; in still another embodiment, the voids define a corrugated structure. Each flexure also has an inner and an outer end, each of which includes a plurality of spaced apart, flexible, necked extensions projecting beyond a central portion of the constraining member. These necked extensions, to which the base and beam are connected, serve as the hinge points of the flexures to maintain the transducer in precise alignment with the tape without significant skewing.
摘要翻译：提供致动器组件，用于控制多磁道，磁阻换能器在磁道搜索模式下在轨道上进行索引的位置，并且以伺服控制轨道跟随模式快速调整换能器的位置。致动器包括基座，与基座间隔开且可相对于其移动的梁，在分别与基座的上部和下部以及梁的上端和下端相连接的平行平面中相对的上下弯曲部分，以及电磁驱动装置。每个挠曲件包括紧固到并基本上覆盖板的约束构件。约束构件具有形成在其中的多个空隙。在一个实施例中，空隙包括延伸穿过约束构件的平行开口; 在另一个实施例中，空隙限定蜂窝结构; 在另一个实施例中，空隙限定波纹结构。每个挠曲件还具有内端和外端，每端都包括多个间隔开的，柔性的颈缩延伸部，突出超过约束构件的中心部分。这些颈部延伸部分与基座和梁相连接，用作挠曲件的铰链点，以保持传感器与带材精确对准，而不会有明显的偏斜。

12. 发明授权

US5299756A Foil wrapped flexible web guide 失效
标题翻译：箔包裹柔性网页指南
公开(公告)号：US5299756A
公开(公告)日：1994-04-05
申请号：US966632
申请日：1992-10-26
申请人： Paul Y. Hu , James L. Overacker
发明人： Paul Y. Hu , James L. Overacker
IPC分类号： G11B15/60 , G11B23/087 , G11B23/04 , B65H27/00
CPC分类号： G11B23/08757 , G11B15/60
摘要： A hydrodynamic tape guide includes a thin metal foil attached to a substrate by a pin inserted into a groove in the substrate. The groove is of a geometry including a first region of a relatively small width and at a relatively shallow depth and a second region of a relatively large width deeper into the substrate. The pin is of a thickness greater than the first width, but less than the second width.
摘要翻译：流体动力带引导件包括通过插入基板中的凹槽中的销钉附接到基板的薄金属箔。凹槽具有几何形状，其包括相对较小宽度的第一区域和相对较浅的深度以及深入基底的较大宽度的第二区域。销的厚度大于第一宽度，但小于第二宽度。

13. 发明授权

US4479158A Stationary magnetic head with a fluid operated tape lifter 失效
标题翻译：固定式磁头，带有流体操作的磁带提升器
公开(公告)号：US4479158A
公开(公告)日：1984-10-23
申请号：US377284
申请日：1982-05-12
申请人： Frederick B. Froehlich , Paul Y. Hu
发明人： Frederick B. Froehlich , Paul Y. Hu
IPC分类号： G11B17/32 , G11B5/127 , G11B5/187 , G11B5/265 , G11B5/48 , G11B15/62 , G11B15/64 , G11B15/60 , G11B5/60
CPC分类号： G11B15/62 , G11B5/187 , G11B5/4893
摘要： Fluid is introduced under pressure to the operative face of a magnetic head to lift the magnetic media out of contact with the transducers when the media is stationary or about to be stopped. The media is lifted only locally with respect to the multiple transducers of the magnetic head. The fluid pressure tents the tape with the pressure adjusted such that the media forms a seal with the head at the edges of the media to hold the fluid within the tent-like structure. Slots formed in the magnetic head at the leading and trailing edges allow the fluid to escape to keep the media from excessively lifting from the magnetic head. The fluid pressure is under control of a valve that introduces the pressure to the operative face of the head as well as opening the operative face to atmospheric pressure when the fluid pressure is halted to permit the media tension to quickly pull the media back into contact with the transducers by assisting the slots in dissipating the fluid pressure.
摘要翻译：将流体在压力下引入磁头的操作面，以在介质静止或即将停止时提升磁性介质与换能器的接触。介质相对于磁头的多个换能器本地被提升。流体压力用压力来调节胶带，使得介质在介质的边缘与头部形成密封，以将流体保持在帐篷状结构内。在磁头中在前缘和后缘处形成的槽允许流体逸出，以使介质不会从磁头过度提升。流体压力在阀门的控制下，该阀将压力引导到头部的操作面，以及当流体压力停止时将操作面打开到大气压力，以允许介质张力快速地将介质拉回到与换能器通过辅助槽消散流体压力。

14. 发明授权

US4405961A Thermoelectric cooling of magnetic head assemblies 失效
标题翻译：磁头组件的热电冷却
公开(公告)号：US4405961A
公开(公告)日：1983-09-20
申请号：US290646
申请日：1981-08-06
申请人： William W. Chow , Davis S. Fields, Jr. , Paul Y. Hu , Jorge L. Lopez
发明人： William W. Chow , Davis S. Fields, Jr. , Paul Y. Hu , Jorge L. Lopez
IPC分类号： G11B5/105 , G11B5/40 , F25B21/02 , G11B5/10
CPC分类号： G11B5/40 , G11B5/105
摘要： The temperature of a magnetic head assembly is reduced by active heat transfer accomplished by a thermoelectric cooling element positioned between and in contact with the head assembly housing and the head assembly. The housing serves as a heat sink from which thermal energy is diffused.
摘要翻译：磁头组件的温度通过由位于头组件壳体和头组件之间并与头组件壳体接触的热电冷却元件实现的主动热传递而减小。外壳用作热能散射的散热器。

15. 发明授权

US4132890A Self adjusting tachometer 失效
标题翻译：自调速转速计
公开(公告)号：US4132890A
公开(公告)日：1979-01-02
申请号：US853921
申请日：1977-11-22
申请人： Joe L. Garcia , Paul Y. Hu , Tracy N. Waller
发明人： Joe L. Garcia , Paul Y. Hu , Tracy N. Waller
IPC分类号： G01D5/347 , G01P3/486 , G01D5/36
CPC分类号： G01D5/3473 , G01P3/486
摘要： The disclosure describes an electro-optical tachometer assembly for use with a device having a movable part and a fixed part (for example, a motor, an electrophotographic system, etc). The electro-optical tachometer assembly comprises a movable assembly and a fixed assembly. The movable assembly includes a movable disk while the fixed assembly includes a fixed mask. A gap between the movable disk and the fixed mask is preset by a spacer assembly. The gap is maintained constant by a resilient member which loads the fixed assembly against the movable assembly.A light emitting diode (LED) phototransistor assembly is situated relative to the tachometer assembly and outputs electrical signals indicative of shaft speed, direction of shaft rotation, etc. Synchronization of the tachometer output to the shaft is accomplished by a guide pin arrangement.
摘要翻译：本公开描述了一种与具有可移动部件和固定部件（例如，电动机，电子照相系统等）的装置一起使用的电光转速计组件。电光转速计组件包括可移动组件和固定组件。可移动组件包括可移动盘，而固定组件包括固定掩模。可移动盘和固定掩模之间的间隙由间隔件组件预设。通过将固定组件装载在可移动组件上的弹性构件将间隙保持恒定。

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