公开(公告)号：US20180012654A1

公开(公告)日：2018-01-11

申请号：US15547123

申请日：2015-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning GE ,  Wai Mun Wong ,  Leong Yap Chia ,  Ser Chia Koh

IPC: G11C13/00 ,  G11C7/04 ,  B41J2/175 ,  G11C11/56 ,  H01L45/00 ,  H01L27/24

CPC classification number: G11C13/0016 ,  B41J2/04541 ,  B41J2/0458 ,  B41J2/1753 ,  B41J2202/13 ,  G11C7/04 ,  G11C11/5664 ,  G11C13/0007 ,  G11C13/0023 ,  G11C13/0026 ,  G11C13/003 ,  G11C2213/72 ,  G11C2213/74 ,  G11C2213/78 ,  G11C2213/79 ,  H01L27/2409 ,  H01L27/2463 ,  H01L45/146

Abstract: A memory cell includes an input coupled to a read line, an output coupled to a circuit ground, a bi-polar memristor, and at least one address switch coupled to an address line to select the memory cell. A memory includes the bi-polar memristor and a one-way current conducting device, wherein the one-way current conducting device is positioned between the memristor cell output and the circuit ground, or between the read line and the memristor cell input.

公开(公告)号：US10336069B2

公开(公告)日：2019-07-02

申请号：US15748831

申请日：2015-10-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Ser Chia Koh ,  Chaw Sing Ho ,  John Patrick Oliver

IPC: B41J2/045 ,  B41J2/14 ,  H05K1/16

Abstract: In one example, a printhead having an electrically-functional optical target. The printhead includes a substrate. An optical target having an optically-distinguishable shape and formed from at least one polysilicon strip is deposited on the substrate. An electrical connection to at least one of the polysilicon strips connect the strip into a circuit that is deposited on the substrate.

公开(公告)号：US10170180B2

公开(公告)日：2019-01-01

申请号：US15547123

申请日：2015-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning Ge ,  Wai Mun Wong ,  Leong Yap Chia ,  Ser Chia Koh

IPC: G11C11/00 ,  G11C13/00 ,  B41J2/045 ,  B41J2/175 ,  G11C7/04 ,  G11C11/56 ,  H01L27/24 ,  H01L45/00

Abstract: A memory cell includes an input coupled to a read line, an output coupled to a circuit ground, a bi-polar memristor, and at least one address switch coupled to an address line to select the memory cell. A memory includes the bi-polar memristor and a one-way current conducting device, wherein the one-way current conducting device is positioned between the memristor cell output and the circuit ground, or between the read line and the memristor cell input.

公开(公告)号：US20180290457A1

公开(公告)日：2018-10-11

申请号：US15570660

申请日：2015-07-24

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning Ge ,  Leong Yap Chia ,  Wei Mun Wong ,  Ser Chia Koh

IPC: B41J2/175 ,  B41J2/14

Abstract: In an example implementation, a method of operating a fluid sensing device includes enabling a fluid level sensing circuit on a printhead to determine a fluid level by sharing an applied charge between a capacitive sensor and a reference capacitor to determine a capacitance value of the capacitive sensor. The method includes enabling a fluid property sensing circuit on the printhead to determine a fluid property by measuring a transistor voltage that indicates a concentration of ions gathered on the capacitive sensor.

公开(公告)号：US20180222188A1

公开(公告)日：2018-08-09

申请号：US15748831

申请日：2015-10-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Ning Ge ,  Ser Chia Koh ,  Chaw Sing Ho ,  John Patrick Oliver

IPC: B41J2/14 ,  B41J2/045 ,  H05K1/16

CPC classification number: B41J2/14024 ,  B41J2/04543 ,  B41J2202/11 ,  H05K1/167 ,  H05K2203/013

Abstract: In one example, a printhead having an electrically-functional optical target. The printhead includes a substrate. An optical target having an optically-distinguishable shape and formed from at least one polysilicon strip is deposited on the substrate. An electrical connection to at least one of the polysilicon strips connect the strip into a circuit that is deposited on the substrate.