公开(公告)号：US11763888B1

公开(公告)日：2023-09-19

申请号：US17872923

申请日：2022-07-25

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Giacomo Pedretti ,  John Moon ,  Pedro Henrique Rocha Bruel ,  Catherine Graves

IPC: G11C15/04 ,  G11C7/16 ,  G11C16/34 ,  G11C16/10

CPC classification number: G11C15/04 ,  G11C7/16 ,  G11C16/102 ,  G11C16/3404

Abstract: Systems and methods provide new circuits that increase aCAM precision by leveraging the concept of range segmenting to representationally store an analog voltage range across multiple aCAM cells/sub-circuits (here the representationally stored analog voltage range may correspond to a word entry). In this way, a circuit of the presently disclosed technology can increase precision (e.g., the number of programmable levels that can be used to store a word entry and/or the number of programmable levels that an input signal can be search against) linearly with each aCAM cell/sub-circuit added to the circuit. Accordingly, circuits of the presently disclosed technology can be used to carry out more complex computations than conventional aCAMs—and thus can be used in a wider range of computational applications.