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公开(公告)号：US3718776A
公开(公告)日：1973-02-27
申请号：US3718776D
申请日：1970-12-11
Applicant: IBM
Inventor： BATE G , ECHELMEIER R , EVERETT L , TAYLOR G , THORNLEY R , KEHR W , SCHAPS J
CPC classification number: G11B5/147 , G11B5/29 , G11B5/31 , Y10T29/49041 , Y10T29/49048 , Y10T29/49059 , Y10T29/49066
Abstract: A magnetic head reads and writes a plurality of information tracks, recorded as magnetization patterns on a magnetic recording medium, with two magnetic sheets mounted in a supporting frame. Complementary sheets each define a number of alternating three-sided and two-sided figures aligned along a subsequently formed head face. A gap-forming non-magnetic material is placed along one leg of each figure on one of the sheets, and the sheets are placed together, welded, encapsulated and ground to form a head. Preformed windings slip over one leg of each of the three-sided figures and preformed shielding cans surround the magnetic elements.
Abstract translation: 磁头读取并写入在磁记录介质上记录为磁化图案的多个信息轨道，其中两个磁性片安装在支撑框架中。 互补片每个限定沿着随后形成的头部面对齐的多个交替的三面和双面图形。 一个间隙形成非磁性材料沿着每个图形的一条腿放置在其中一个片材上，并将片材放置在一起，焊接，封装并研磨以形成头部。 预制的绕组滑动在三面图中的每一个的一条腿上，并且预制的屏蔽罐围绕磁性元件。
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公开(公告)号：US3713122A
公开(公告)日：1973-01-23
申请号：US3713122D
申请日：1971-06-04
Applicant: IBM
Inventor： TAYLOR G
CPC classification number: G11B5/1272 , G11B5/147 , G11B5/1475 , G11B5/21 , G11B5/29 , G11B5/3163 , G11B5/488
Abstract: A magnetic transducer reads and writes electric signals recorded as tracks of magnetic manifestations on a magnetic medium moving relative to the transducer. The transducer is a high permeability magnetic sheet with a row of apertures along one edge of the sheet and a narrow slot connecting each aperture to the edge. Each aperture and slot corresponds to one track on the medium. An electric wire is threaded through the aperture for external connection. The edge of the sheet is adjacent the medium and at a fixed angle transverse the direction of relative motion. The angle and the thickness of the sheet determine the track width and, together with the total width of the sheet across the medium, the amount of information exchangeable with the medium.
Abstract translation: 磁传感器在相对于换能器移动的磁性介质上读取和写入记录为磁性表现轨迹的电信号。 传感器是一个高磁导率磁性薄片，沿着薄片的一个边缘具有一排孔，以及将每个孔连接到边缘的窄槽。 每个孔和槽对应于介质上的一个轨道。 电线穿过孔径进行外部连接。 片材的边缘与介质相邻并且以相对运动方向横向的固定角度。 片材的角度和厚度确定了轨道宽度，并且与纸张跨介质的总宽度一起，可以与介质交换的信息量。
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公开(公告)号：BR7802682A
公开(公告)日：1978-12-19
申请号：BR7802682
申请日：1978-04-28
Applicant: IBM
Inventor： AMES R , TAYLOR G , LEININGER J , HARDIN D
Abstract: An interface comprising normal asynchronous I/O interface hardware in combination with certain additional synchronizing connections is provided between a microcoded central processing unit (CPU) and a microcoded secondary processor (such as a floating point processor) for enabling these processors to function conjointly under common timing control as though they were natively attached to each other insofar as the execution of their respective microcodes is concerned. The secondary processor shares the normal I/O interface with the I/O devices for data transfer purposes in such fashion that data can be transferred between any of the I/O devices and the CPU in cycle steal mode when the secondary processor is internally occupied with executing an operation delegated to it by the central processor, and when the secondary processor is ready to store data which it has produced, I/O data transfers in cycle steal mode can be made concurrently with data transfers between the secondary processor and the CPU on a demand multiplex basis. Coordinating signals are passed between the processors at certain steps during the execution of their respective microcodes to maintain these microcodes in proper timed relationship with each other.
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