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公开(公告)号：US5282104A
公开(公告)日：1994-01-25
申请号：US46915
申请日：1993-04-14
IPC分类号： G11B5/09 , G11B5/29 , G11B5/31 , G11B5/39 , G11B5/49 , G11B15/14 , G11C11/15 , G11C11/16 , H01L27/22 , G11B5/027 , G11B5/48
CPC分类号： B82Y25/00 , B82Y10/00 , G11B15/14 , G11B5/3903 , G11B5/3958 , G11B5/4969 , G11C11/15 , G11C11/16 , G11B2005/3996 , G11B5/3183
摘要： A magnetic reading device, of the type comprising multiple magnetic read heads, incorporates read heads each formed by a magneto-resistance element having a resistance which varies as a function of an outside magnetic field. The magnetic reading device comprises a network of line conductors intersected with a network of column conductors to form intersections at which a read head is provided. The first and second ends of each magneto-resistance element forming the read heads are respectively connected to a line conductor and to a column conductor of the corresponding intersection, and a control voltage is applied to the line and column conductors by a switching element for each line conductor, column conductors being connected to a current sensor. A simplification of the control of read heads results from this arrangement, while avoiding the effect of the heads not selected on the variations of current coming from the selected heads.
摘要翻译： 包括多个磁读头的类型的磁读取装置包括读磁头，每个读磁头均由具有作为外部磁场的函数而变化的电阻的磁阻元件形成。 磁读取装置包括与列导体网络相交的线路导体网络，以形成提供读头的交叉点。 形成读磁头的每个磁阻元件的第一和第二端分别连接到线路导体和相应交点的列导体，并且通过开关元件对每个线路和列导体施加控制电压 线导体，列导体连接到电流传感器。 读取头的控制的简化是由这种布置引起的，同时避免了未被选择的磁头对所选磁头的电流变化的影响。
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公开(公告)号：US5251088A
公开(公告)日：1993-10-05
申请号：US732797
申请日：1991-07-19
CPC分类号： G11B5/3903 , G11B5/332 , G11B5/3958 , G11B5/4969
摘要： Magnetic read heads with magneto-resistance effect of the multilayer type, are provided in a new arrangement making it possible in particular to facilitate a collective arrangement of these heads. Each read head comprises a magneto-resistance element formed by a sensitive magnetic layer superposed on a stable magnetic layer. Each read head comprises a magnetic circuit in a ring opened by an air gap, the sensitive magnetic layer being inserted in the magnetic circuit in a ring, the stable magnetic layer being outside the ring of the magnetic circuit. The arrangement of the magnetic read heads is particularly adapted for reading high density magnetic storage media.
摘要翻译： 提供具有多层型磁阻效应的磁读头以新的布置方式提供，特别是有助于这些磁头的集体布置。 每个读取头包括由叠加在稳定磁性层上的敏感磁性层形成的磁阻元件。 每个读取头包括由气隙打开的环中的磁路，敏感磁性层以环形方式插入到磁路中，稳定的磁性层位于磁路的环外。 磁读头的布置特别适于读取高密度磁存储介质。
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