公开(公告)号：US20170243109A1

公开(公告)日：2017-08-24

申请号：US15500073

申请日：2014-11-03

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Miao HU ,  Jianhua YANG ,  Ning GE

IPC: G06N3/063 ,  G06N3/08 ,  G06N3/04

CPC classification number: G06N3/0635 ,  G06N3/049 ,  G06N3/08

Abstract: A device according to examples of the present disclosure includes a crossbar array including a cell. The cell includes a first resistance switch and a second resistance switch connected in series with the first resistance switch. The first and second resistance switches have different switching characteristics. One of the first and second resistance switches may act as a switch, while the other of the first and second resistance switches may weight the switching behavior of the one that acts as the switch.

公开(公告)号：US20170316827A1

公开(公告)日：2017-11-02

申请号：US15521542

申请日：2014-10-23

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ning GE ,  Jianhua YANG ,  John Paul STRACHAN ,  Miao HU

IPC: G11C13/00 ,  G06F17/16 ,  G06F17/11

CPC classification number: G11C13/0069 ,  G06F17/11 ,  G06F17/16 ,  G06G7/16 ,  G11C7/1006 ,  G11C13/0007 ,  G11C13/0023 ,  G11C13/0026 ,  G11C13/0028 ,  G11C13/004 ,  G11C2213/15 ,  G11C2213/77

Abstract: A method of obtaining a dot product includes applying a number of first voltages to a corresponding number of row lines within a memristive cross-bar array to change the resistive values of a corresponding number of memristors located a junctions between the row lines and a number of column lines. The first voltages define a corresponding number of values within a matrix, respectively. The method further includes applying a number of second voltages to a corresponding number of the row lines within the memristive cross-bar array. The second voltages define a corresponding number of vector values. The method further includes collecting the output currents from the column lines. The collected output currents define the dot product.

公开(公告)号：US20170249989A1

公开(公告)日：2017-08-31

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: 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.

公开(公告)号：US20170221560A1

公开(公告)日：2017-08-03

申请号：US15500500

申请日：2015-04-23

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Miao HU ,  John Paul STRACHAN ,  Ning GE ,  Jianhua YANG

IPC: G11C13/00 ,  G06N7/00

CPC classification number: G11C13/0021 ,  G06F7/588 ,  G06F17/18 ,  G06G7/122 ,  G06N7/005

Abstract: An example apparatus includes a crossbar array of signal lines and control lines. The example apparatus also includes an input controller in circuit with the control lines. The input control is to select one of the control lines. The example apparatus also includes first resistive elements connected between corresponding ones of the control lines and corresponding ones of the signal lines. The first resistive elements have first conductances set to operate as a matrix of probabilities that define a fixed transition kernel of a Markov Chain. The example apparatus also includes second resistive elements in circuit with the signal lines. The second resistive elements have second conductances set to select one of the signal lines exclusive of others of the signal lines based on a subset of the probabilities in the matrix of the probabilities.