公开(公告)号：US3887944A

公开(公告)日：1975-06-03

申请号：US37528673

申请日：1973-06-29

Applicant: IBM

Inventor： BAJOREK CHRISTOPHER H ,  THOMPSON DAVID A

IPC: G01R33/02 ,  G01R33/09 ,  G11B5/29 ,  G11B5/39 ,  G11C19/08 ,  G11B5/12

CPC classification number: B82Y25/00 ,  G01R33/093 ,  G11B5/29 ,  G11B5/3903 ,  G11B5/3977 ,  G11C19/0866

Abstract: Elimination of crosstalk in an integrated array of magnetoresistive reading heads by the use of regions of high coercivity material between the active areas of closely spaced magnetoresistive sensors so as to prevent flux coupling between such closely spaced sensors.

Abstract translation: 通过在紧密间隔的磁阻传感器的有源区域之间使用高矫顽力材料的区域来消除磁阻读取头的集成阵列中的串扰，从而防止这种紧密间隔的传感器之间的磁通耦合。

公开(公告)号：US3691540A

公开(公告)日：1972-09-12

申请号：US3691540D

申请日：1970-10-06

Applicant: IBM

Inventor： ALMASI GEORGE S ,  CHANG HSU ,  KEEFE GEORGE E ,  THOMPSON DAVID A

IPC: G11C11/14 ,  G11C19/08

CPC classification number: G11C19/0866

Abstract: An integrated magneto-resistive sensor for detection of magnetic bubble domains. The sensor is located on the chip in which the bubble domains propagate and can be an integral part of the propagation circuitry. Any material exhibiting a magnetoresistive effect can be used, and permalloy is a preferred material. The sensing element can be made very small, and has a length which is usually about equal to a bubble domain diameter.

Abstract translation: 用于检测磁性气泡域的集成磁阻传感器。 传感器位于气泡区域传播的芯片上，并且可以是传播电路的组成部分。 可以使用具有磁阻效应的任何材料，坡莫合金是优选的材料。 感测元件可以制造得非常小，并且具有通常大约等于气泡直径的长度。

公开(公告)号：US3921217A

公开(公告)日：1975-11-18

申请号：US37178773

申请日：1973-06-20

Applicant: IBM

Inventor： THOMPSON DAVID A

IPC: G01T1/115 ,  G11B5/39 ,  G11B5/12 ,  G11B5/22

CPC classification number: G11B5/3925 ,  G01T1/115 ,  G11B5/3903 ,  G11B5/3967

Abstract: A magnetoresistive recording head for writing information onto a magnetic tape or similar recording medium and for reading such information, wherein the thin magnetoresistive element is protected from tape wear by employing a magnetically permeable element between the tape and the magnetoresistive element so that recording can take place without proximity between tape and sensor. Additionally, the magnetoresistive element is surrounded by the yoke of the recording head in such a manner that the element is effectively out of the magnetic field of view of the magnetically recorded data until such data is directly under the magnetic element. Consequently, the resolution of the recording head is substantially increased.

公开(公告)号：US3488167A

公开(公告)日：1970-01-06

申请号：US3488167D

申请日：1967-07-06

Applicant: IBM

Inventor： CHANG HSU ,  THOMPSON DAVID A

IPC: G11B5/00 ,  G11B5/66 ,  G11B11/105 ,  G11C11/15 ,  G11C13/06 ,  C22C39/38

CPC classification number: G11B5/00 ,  G11B5/66 ,  G11B11/10515 ,  G11B11/10584 ,  G11B11/10586 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021 ,  G11C11/15 ,  G11C13/06 ,  Y10S428/926 ,  Y10T428/12438 ,  Y10T428/12771 ,  Y10T428/12958