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1. 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。

2. 发明授权

US4366518A Multi-track head assembly 失效
标题翻译：多轨头组件
公开(公告)号：US4366518A
公开(公告)日：1982-12-28
申请号：US183559
申请日：1980-09-02
申请人： William W. Chow , Davis S. Fields, Jr.
发明人： William W. Chow , Davis S. Fields, Jr.
IPC分类号： G11B5/187 , G11B5/29 , G11B5/27
CPC分类号： G11B5/29 , G11B5/295 , Y10T29/49048 , Y10T29/49055
摘要： A method of manufacturing a novel ferrite magnetic head assembly utilizes two ferrite pieces having extending fingers of closely similar dimensions that are joined in interleaving fashion and bonded to a ceramic substrate. The resultant assembly is sliced to provide closure sections for multi-track magnetic heads. Each closure section is joined to a ferrite wafer such that the wafer and closure section define a transducing gap therebetween.
摘要翻译：一种制造新型铁氧体磁头组件的方法利用两个铁氧体片，其具有以交错方式接合并结合到陶瓷衬底的具有非常相似尺寸的延伸指状物。将所得组件切片以提供用于多轨磁头的闭合部分。每个封闭部分连接到铁氧体晶片，使得晶片和封闭部分在它们之间限定换能间隙。

3. 发明授权

US4225892A Wear resistant magnetorestrictive head 失效
标题翻译：耐磨磁致伸缩头
公开(公告)号：US4225892A
公开(公告)日：1980-09-30
申请号：US9321
申请日：1979-02-05
申请人： Roger D. Bassett , Gerald A. Daughenbaugh , Davis S. Fields, Jr. , Wayne McCormick , Rhodes W. Polleys , Ralph D. Silkensen , Gerald Steving
发明人： Roger D. Bassett , Gerald A. Daughenbaugh , Davis S. Fields, Jr. , Wayne McCormick , Rhodes W. Polleys , Ralph D. Silkensen , Gerald Steving
IPC分类号： G06K7/08 , G11B5/255 , G11B5/39 , G11B5/30 , G11B5/12 , G11B5/22
CPC分类号： G11B5/3903 , G06K7/084 , G06K7/087 , G11B5/255
摘要： An MR head is disclosed in which the MR element is deposited onto a sapphire substrate with a particular crystallographic orientation and a sapphire closure piece also having a particular crystallographic orientation is used. The substrate has the MR element deposited onto either the {0001} or the {1120} plane with the {1100} plane being oriented as the wear surface. The closure piece has either the {1120} or the {0001} plane facing the MR material and the {1100} plane oriented as the wear surface.
摘要翻译：公开了一种MR磁头，其中MR元件沉积在具有特定结晶取向的蓝宝石衬底上，并且使用也具有特定结晶取向的蓝宝石闭合件。衬底具有沉积在{0001}或{1120}平面上的MR元件，其中{1100}面被定向为磨损表面。闭合件具有面向MR材料的{1120}或{0001}面，并且{1100}面定向为磨损表面。

4. 发明授权

US4685005A Two-module-read, read-after-write, bi-directional tape drive 失效
标题翻译：双模块读写，双写磁带驱动器
公开(公告)号：US4685005A
公开(公告)日：1987-08-04
申请号：US514994
申请日：1983-07-18
申请人： Davis S. Fields, Jr.
发明人： Davis S. Fields, Jr.
IPC分类号： G11B15/087 , G11B5/008 , G11B5/09 , G11B5/48 , G11B15/02 , G11B15/12 , G11B20/18 , G11B27/36 , G11B5/187
CPC分类号： G11B5/00817 , G11B15/12 , G11B20/1816 , G11B27/36 , G11B5/4893
摘要： A digital tape drive wherein tape is written, and a read-after-write operation is immediately performed to check the integrity of the write operation, for either direction of tape movement. The tape contains a plurality of parallel data tracks. Two read/write head modules span the entire tape. The read and write gaps of each module are alternately spaced across the width of the tape, such that the write gaps of one module are aligned with the read gaps of the other module. When one module is selected for writing, as a function of the direction of tape movement, the other module is selected to read-after-write check the first module's written data. One module writes odd-track data during one direction of tape movement, and reads even-track data during the opposite direction of tape movement; as the other module writes even-track data during said opposite movement direction, and reads odd-track data during said one movement direction. Common read and write eletronic circuits are switched between the two modules, since each module is using only one of its read and write gap multiples at any given time.
摘要翻译：写入磁带的数字磁带驱动器，并且立即进行写后读操作，以检查磁带移动的任一方向上的写入操作的完整性。磁带包含多个并行数据磁道。两个读/写头模块跨越整个磁带。每个模块的读取和写入间隙在带的宽度上交替地间隔开，使得一个模块的写入间隙与另一个模块的读取间隙对准。当一个模块被选择用于写入时，根据磁带移动的方向，另一个模块被选中以便读写检查第一个模块的写入数据。一个模块在磁带移动的一个方向上写入奇数轨道数据，并在磁带移动的相反方向读取偶数轨道数据; 因为另一个模块在所述相对移动方向上写入偶数轨道数据，并且在所述一个移动方向上读取奇数轨道数据。在两个模块之间切换通用读写电子电路，因为每个模块在任何给定的时间只使用其读取和写入间隙倍数中的一个。

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