公开(公告)号：FR1533160A

公开(公告)日：1968-07-19

申请号：FR956593

申请日：1963-12-10

Applicant: IBM

Inventor： BOLTON I W ,  GOWER K N ,  OWEN C E ,  PROUDMAN A ,  TAUB D M ,  WARWICK W A

IPC: G11C17/02 ,  H01R12/70

公开(公告)号：SE345335B

公开(公告)日：1972-05-23

申请号：SE1346366

申请日：1966-10-05

Applicant: IBM

Inventor： PROUDMAN A

IPC: G11C11/40 ,  G11C15/00

公开(公告)号：SE313074B

公开(公告)日：1969-08-04

申请号：SE1369163

申请日：1963-12-10

Applicant: IBM

Inventor： BOLTON I ,  GOWER K ,  TAUB D ,  WARWICK W ,  OWEN C ,  PROUDMAN A

IPC: G11C17/02 ,  H01R12/70 ,  G11C17/00

公开(公告)号：SE311179B

公开(公告)日：1969-06-02

申请号：SE769663

申请日：1963-07-10

Applicant: IBM

Inventor： TAUB D ,  OWEN C ,  PROUDMAN A

IPC: G11C17/04 ,  G11C11/24

Abstract: 1,055,261. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 4, 1963 [July 10, 1962]. No. 26504/62. Heading G4A. In read-only memories in which a capacitive or other connection is made between selected drive and sense lines from sets of such lines the invention provides that there is a constant impedance to current in the drive line whatever the form of the stored data. This is done in Fig. 2 (not shown) by providing pairs of sense lines both lines of a pair being connected to a differential amplifier. One bits are stored by connecting the lines S1a, S2a to appropriate drive lines, and zero bits by connecting the lines S1b, S2b to the drive lines. Fig. 3 (not shown) shows pairs of drive and sense lines. Ones are stored by connecting the d drive lines to the p sense lines and the b drive lines to the q sense lines and zeroes by making the opposite connections. To pulse a drive line a transistor from the set G1 to GN is sent conductive after which a transistor T1 or T2 . . . is pulsed. The invention is also applicable to inductive readonly stores.