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1. 发明授权

US4375657A Magnetic head assembly 失效
标题翻译：磁头组件
公开(公告)号：US4375657A
公开(公告)日：1983-03-01
申请号：US203282
申请日：1980-11-03
申请人： George W. Brock , Robert N. Hyland , Edward J. Pawlowski , Frank B. Shelledy
发明人： George W. Brock , Robert N. Hyland , Edward J. Pawlowski , Frank B. Shelledy
IPC分类号： G11B5/133 , G11B5/17 , G11B5/22 , G11B5/20
CPC分类号： G11B5/133 , G11B5/17
摘要： A magnetic head assembly useful as a write head is formed with a ferrite substrate, having a recessed channel on one surface in which a conductive coil is deposited, and a ferrite closure having a planar surface that is joined to the substrate surface to establish a transducing gap and to enclose the recessed coil. In operation, pulsed write current is applied to the write head and a significant reduction in Joule heating is realized. A low resistance substrate is employed to provide a high saturation flux density.
摘要翻译：用作写头的磁头组件形成有铁氧体衬底，在其中沉积导电线圈的一个表面上具有凹陷通道，以及具有与衬底表面接合的平坦表面的铁氧体闭合以建立传导间隙并包围凹陷线圈。在操作中，脉冲写入电流被施加到写入头，并且实现焦耳加热的显着减少。采用低电阻衬底来提供高饱和磁通密度。

2. 发明授权

US4149204A Minor bit reduction on a magnetic head 失效
标题翻译：磁头上微小的位减少
公开(公告)号：US4149204A
公开(公告)日：1979-04-10
申请号：US782266
申请日：1977-03-28
申请人： Peter T. Marino , Frank B. Shelledy , Edmond W. Smathers
发明人： Peter T. Marino , Frank B. Shelledy , Edmond W. Smathers
IPC分类号： G11B5/127 , G11B5/187 , G11B5/265 , G11B5/588 , G11B15/467 , G11B5/25 , G11B5/27
CPC分类号： G11B5/265 , G11B5/187 , G11B5/588
摘要： A magnetic head assembly for cooperating with a relatively moving medium, on which servo information and data information is recorded, and for reading and/or writing on said medium and for erasing said medium is fabricated so that the effect of pickup interference or unwanted signals during playback is reduced. The magnetic head assembly incorporates a geometry which shifts the signal envelope of the interfering signal so that it is in phase with the signal envelope of the desired signal. The preferred geometry is to dimension the head core so that the distance between two gaps or between a single gap and the edge of the core is equal to the distance between the servo tracks on said medium. Additionally, the gap of the head has a gap null occurring at the frequency of the interfering signal.
摘要翻译：一种用于与其上记录有伺服信息和数据信息以及用于在所述介质上读取和/或写入并用于擦除所述介质的相对移动介质配合的磁头组件被制造成使得拾取干扰或不需要的信号在播放减少。磁头组件结合了几何形状，其移动干扰信号的信号包络，使其与期望信号的信号包络同相。优选的几何形状是使头部芯的尺寸，使得两个间隙之间或在单个间隙和芯部边缘之间的距离等于所述介质上的伺服轨道之间的距离。此外，磁头的间隙在干扰信号的频率处具有间隙零点。

3. 发明授权

US5001586A Very low noise magnetoresistive sensor for high density media applications 失效
标题翻译：用于高密度介质应用的极低噪声磁阻传感器
公开(公告)号：US5001586A
公开(公告)日：1991-03-19
申请号：US388241
申请日：1989-08-01
申请人： Joseph A. Aboaf , Vincent N. Kahwaty , James L. Nix , Frank B. Shelledy
发明人： Joseph A. Aboaf , Vincent N. Kahwaty , James L. Nix , Frank B. Shelledy
IPC分类号： G01R33/09 , G11B5/39 , H01L43/08
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3903 , G11B5/399 , H01L43/08
摘要： A soft film biased magnetoresistive sensor (10) is fabricated to have reduced Barkhausen noise. The magnetic ratio of the film layers (14 and 18) is controlled to be in the range of 1.7 to 1.95 and the optimum bias point is controlled to be in the range of 35 and 41 degrees.

4. 发明授权

US3940797A Shielded magnetoresistive magnetic transducer 失效
标题翻译：屏蔽磁阻磁传感器
公开(公告)号：US3940797A
公开(公告)日：1976-02-24
申请号：US548846
申请日：1975-02-10
申请人： George W. Brock , Frank B. Shelledy , Sidney H. Smith , Richard F. M. Thornley
发明人： George W. Brock , Frank B. Shelledy , Sidney H. Smith , Richard F. M. Thornley
IPC分类号： G11B5/33 , G11B5/39 , G11B5/16 , G11B5/22
CPC分类号： G11B5/39 , G11B5/332
摘要： A magnetoresistive (MR) layer is placed offcenter the distance between two shields to enhance self-biasing. Information is carried on a magnetizable medium as recorded magnetic areas. The shields are spaced apart by a distance on the order of and less than the shortest recorded wavelength for which the head is meant to be used. The MR element and the shields have their edges nearest the medium in a common plane perpendicular to the vertical component of a signal from the recorded area. An additional shunt bias layer may be provided immediately adjacent and coextensive the MR element, and the head may serve one or many tracks.
摘要翻译：磁阻（MR）层放置在两个屏蔽之间的距离上，以增强自偏压。信息在可磁化介质上作为记录磁区进行。屏蔽物隔开一定距离并且小于头部意图使用的最短记录波长的距离。 MR元件和屏蔽件在垂直于来自记录区域的信号的垂直分量的公共平面中具有最靠近介质的边缘。附加的分流偏置层可以紧邻MR元件并且共同延伸，并且头可以用于一个或多个轨道。

5. 发明授权

US4044392A Process for making a read-while-write tape head and the product made thereby 失效
标题翻译：制作读写磁带头和由此制成的产品的过程
公开(公告)号：US4044392A
公开(公告)日：1977-08-23
申请号：US604689
申请日：1975-08-14
申请人： George W. Brock , Frank B. Shelledy , Arthur B. Wills
发明人： George W. Brock , Frank B. Shelledy , Arthur B. Wills
IPC分类号： G11B5/133 , G11B5/265 , G11B5/29 , G11B5/39 , G11B5/221
CPC分类号： G11B5/133 , G11B5/2651 , G11B5/29 , G11B5/39 , Y10T29/49055 , Y10T29/49064
摘要： Write windings are deposited on a ferrite half yoke mounted on a titanium body, and magnetoresistive elements are deposited on another ferrite half yoke mounted on another titanium body. A center section comprising a sandwich of silver-copper shielding material between two ferrite sheets has glass-filled slots cut on one side thereof. The center shield is placed between the write and read sides with the write windings placed between pairs of glass-filled slots and with the magnetoresistive elements in contact with the opposite surface of the center shield. The write windings and the magnetoresistive elements are connected to connector blocks prior to final assembly, and the write and read sides and the center section are pressured together by bolts through two end pieces, forming a vise-like structure.
摘要翻译：写入绕组沉积在安装在钛体上的铁氧体半轭上，并且磁阻元件沉积在另一个安装在另一个钛体上的铁氧体半轭上。在两个铁氧体片之间包括银 - 铜屏蔽材料夹层的中心部分具有在其一侧切割的玻璃填充槽。中心屏蔽被放置在写入和读取侧之间，写入绕组位于成对的玻璃填充槽之间，并且磁阻元件与中心屏蔽件的相对表面接触。写入绕组和磁阻元件在最终组装之前连接到连接器块，并且写入和读取侧面和中心部分通过螺栓通过两个端部件一起加压在一起，形成虎钳状结构。

6. 发明授权

US3967368A Method for manufacturing and using an internally biased magnetoresistive magnetic transducer 失效
标题翻译：制造和使用内部偏置磁阻磁传感器的方法
公开(公告)号：US3967368A
公开(公告)日：1976-07-06
申请号：US572976
申请日：1975-04-30
申请人： George W. Brock , Frank B. Shelledy
发明人： George W. Brock , Frank B. Shelledy
IPC分类号： G01R33/09 , G11B5/39 , H01F1/00 , G11B5/42
CPC分类号： B82Y25/00 , G01R33/09 , G01R33/093 , G11B5/3903 , H01F1/00 , Y10T29/49044 , Y10T29/49046
摘要： A magnetic transducer exhibiting the magnetoresistive (MR) effect is made by depositing at least two thin film layers. An MR film placed in electrical contact with a higher resistivity layer is magnetically biased by a portion of the MR sense current shunted through the nonmagnetic layer.
摘要翻译：通过沉积至少两个薄膜层来形成具有磁阻（MR）效应的磁传感器。与较高电阻率层电接触的MR膜由通过非磁性层分流的MR感测电流的一部分磁偏置。

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