公开(公告)号：US3681767A

公开(公告)日：1972-08-01

申请号：US3681767D

申请日：1970-04-29

Applicant: HONEYWELL INC

Inventor： MOORE DANA W

IPC: G11C7/02 ,  G11C11/06 ,  G11C17/00 ,  G11C17/02 ,  G11C5/02

CPC classification number: G11C17/00 ,  G11C11/06035 ,  G11C17/02

Abstract: A read only memory utilizes magnetic cores rotated 90* from the normal orientation about the read/write coincident wires so that their magnetic state cannot be switched, thereby indicating the storage of logical zeroes regardless of the actual state stored. Logical ones may be stored by orienting the magnetic cores in their normal orientation, so that they can be switched. The read only memory may also be combined at random locations in a standard read/write magnetic core memory thereby sharing the read/write logic, sense logic and inhibit logic associated with a single memory system.

Abstract translation: 只读存储器利用围绕读/写重合线从正常取向旋转90°的磁芯，使得它们的磁状态不能被切换，从而指示存储逻辑零，而不管存储的实际状态如何。 可以通过将磁芯定向到其正常定向来存储逻辑磁芯，使得它们可以被切换。 只读存储器也可以在标准读/写磁芯存储器中的随机位置组合，从而共享读/写逻辑，检测逻辑并禁止与单个存储器系统相关联的逻辑。