公开(公告)号：US09947405B2

公开(公告)日：2018-04-17

申请号：US15500075

申请日：2014-11-18

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： John Paul Strachan ,  Glen E. Montgomery ,  Ning Ge ,  Miao Hu ,  Jianhua Yang

IPC: G11C11/04 ,  G11C13/00 ,  G01J1/00 ,  G06G7/16

CPC classification number: G11C13/0069 ,  G01J1/00 ,  G06G7/16 ,  G11C7/062 ,  G11C7/067 ,  G11C7/1006 ,  G11C11/1673 ,  G11C13/0021 ,  G11C13/004 ,  G11C2013/0057 ,  G11C2013/0088 ,  G11C2213/77

Abstract: A method of obtaining a dot product using a memristive dot product engine with a nulling amplifier includes applying a number of programming voltages to a number of row lines within a memristive crossbar array to change the resistance values of a corresponding number of memristors located at intersections between the row lines and a number of column lines. The method also includes applying a number of reference voltages to the number of the row lines and applying a number of operating voltages to the number of the row lines. The operating voltages represent a corresponding number of vector values. The method also includes determining an array output based on a reference output and an operating output collected from the number of column lines.