公开(公告)号：US3689902A

公开(公告)日：1972-09-05

申请号：US3689902D

申请日：1971-06-30

Applicant: IBM

Inventor： CHANG HSU ,  KEEFE GEORGE E ,  LIN YEONG S ,  ROSIER LAURENCE L

IPC: G11C19/08 ,  H03M7/00 ,  G11C11/14 ,  G11C19/00

CPC classification number: G11C19/0875 ,  H03M7/002

Abstract: A decoder for cylindrical magnetic domain shift registers having means to clear the information from selected registers thus enabling new information to be written into those registers. The decoder is incorporated into 2N closed loop shift registers and uses only a small part of the storage area of the magnetic sheet in which domains exist. It is activated by 2N control lines (N pairs). Depending upon the activation of the decoder, the information in a selected shift register is passed to a clear means which sends it into one of two paths depending upon the activation of the clear means. One path brings the information to a detector for destructive readout, while the other path brings the information to a domain splitter. The domain splitter splits the input domains into two parts, one of which propagates to the detector while the other returns to the proper shift register. Thus, non-destructive readout (NDRO) or destructive read-out (DRO) is provided depending upon the activation of the clear means.

Abstract translation: 用于圆柱形磁畴移位寄存器的解码器具有从所选择的寄存器清除信息的装置，从而使新信息能够写入这些寄存器。 解码器被并入2N闭环移位寄存器中，并且仅使用存在域的磁性片的存储区域的一小部分。 它由2N个控制线（N对）激活。 根据解码器的激活，所选择的移位寄存器中的信息被传递到清除装置，根据清除装置的激活将其发送到两个路径之一。 一条路径将信息提供给检测器以进行破坏性读出，而另一条路径将信息带到域分割器。 域分配器将输入域分成两部分，其中一个传播到检测器，而另一个返回到适当的移位寄存器。 因此，根据清除装置的激活，提供非破坏性读出（NDRO）或破坏性读出（DRO）。

公开(公告)号：US3925768A

公开(公告)日：1975-12-09

申请号：US42900073

申请日：1973-12-27

Applicant: IBM

Inventor： LIN YEONG S

IPC: G11C11/14 ,  G11C19/08

CPC classification number: G11C19/0816

Abstract: Gapless, double-sided propagation structures are provided for implementing the continuous movement of magnetic bubble domains under the control of a reorienting in-plane field. Propagation is achieved by using two identical disc circuits on both sides of the bubble material displaced from each other by one-half of periodicity. The discs in each circuit are disposed in tangential engagement with each other and the two circuits may follow any desired path provided the circuits are in alignment with each other.

Abstract translation: 提供无差的双面传播结构，用于在重新定向的面内场的控制下实现磁性气泡畴的连续运动。 通过在泡沫材料的两侧上使用两个相同的盘形电路来实现传播，所述两个相同的盘形电路彼此相隔一半的周期性。 每个电路中的盘彼此相切地配置，并且如果电路彼此对准，则两个电路可以遵循任何期望的路径。

公开(公告)号：US3914751A

公开(公告)日：1975-10-21

申请号：US42900173

申请日：1973-12-27

Applicant: IBM

Inventor： KEEFE GEORGE E ,  LIN YEONG S ,  ROSIER LAURENCE L

IPC: G11C11/14 ,  G11C19/08

CPC classification number: G11C19/0816

Abstract: A gapless, multithickness propagation structure is provided for implementing the continuous movement of magnetic bubble domains under the control of a reorienting in-plane field. Propagation is achieved by providing two parallel rows of H-shaped overlays of soft magnetic material in spaced-apart end-to-end relation adjacent to one surface of a magnetic medium having magnetic bubble domains therein. The ends of the H-shaped overlays in each row are connected to each other and the ends of the H-shaped overlays in the adjacent row by means of a transversely extending overlay strip having a thickness approximately one-half the thickness of the H-shaped overlays. High storage density, with a cell size 8W2 is obtained, where W is the line width of the elements in the structure.

Abstract translation: 提供无间隙的多点传播结构，用于在重新定向的平面场的控制下实现磁性气泡畴的连续运动。 传播是通过提供两个平行的软磁材料的H形覆盖层，其间隔开的端对端关系邻近其中具有磁性气泡畴的磁性介质的一个表面。 每行中的H形叠层的端部彼此连接，并且H形的端部通过横向延伸的覆盖带覆盖在相邻行中，其厚度大约为H的厚度的一半， 形状叠加。 获得高存储密度，单元尺寸为8W2，其中W是结构元件的线宽。