公开(公告)号：US12044673B2

公开(公告)日：2024-07-23

申请号：US17865253

申请日：2022-07-14

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

Inventor： John Rossi ,  Scott A. Linn ,  James Michael Gardner ,  Erik D. Ness

IPC: B41J2/045 ,  A61K47/18 ,  A61K47/26 ,  G01N27/327 ,  G01N33/49 ,  G01N33/66 ,  G06F3/12 ,  B41J2/175

CPC classification number: G01N33/4925 ,  A61K47/18 ,  A61K47/26 ,  B41J2/04543 ,  G01N27/3274 ,  G01N33/66 ,  G06F3/1206 ,  B41J2/04586 ,  B41J2/175 ,  G01N2496/70

Abstract: A fluid ejection controller interface includes input logic to receive control data packets and a first clock signal, each control data packet including a set of primitive data bits and a set of random bits, wherein the input logic identifies the random bits in the received control data packets to facilitate the creation of modified control data packets. The fluid ejection controller interface includes a clock signal generator to generate a second clock signal that is different than the first clock signal, and output logic to receive the modified control data packets, and output the modified control data packets to a fluid ejection controller of a fluid ejection device based on the second clock signal.

公开(公告)号：US20210354450A1

公开(公告)日：2021-11-18

申请号：US16956701

申请日：2019-02-06

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

Inventor： James Michael Gardner ,  Scott A. Linn ,  John Rossi ,  Erik D. Ness

IPC: B41J2/045 ,  B41J2/14

Abstract: A communicating print component a print head comprising a number of memory bits and a single lane analog bus conductively coupling the number of memory bits to a pad located on the exterior of the print head. The pad is to transmit an electrical signal from the number of memory bits, wherein the electrical signal indicates a combination of all selected bits of the number of memory bits.

公开(公告)号：US20210354447A1

公开(公告)日：2021-11-18

申请号：US16972133

申请日：2019-02-06

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

Inventor： John Rossi ,  Erik D. Ness

IPC: B41J2/045 ,  B33Y50/02 ,  B29C64/393 ,  G05B19/4099

Abstract: In some examples, a controller includes an interface to receive an indication based on an electrical current through a device, and a processor to send control data to the device to operate the device, detect a measurement based on the indication that is responsive to an operation of the device according to the control data, and determine whether an issue exists in the device responsive to determining whether the measurement satisfies an expected property based on the control data.

公开(公告)号：US20190329563A1

公开(公告)日：2019-10-31

申请号：US16507794

申请日：2019-07-10

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

Inventor： Stephen D. Panshin ,  Jefferson P. Ward ,  Erik D. Ness

IPC: B41J2/175 ,  G06F3/12 ,  H04N1/44 ,  G06F21/44 ,  G03G15/08 ,  H04L9/08 ,  G06F21/57

Abstract: A print substance cartridge for a printing device includes a supply of print substance for the printing device, a non-volatile memory, and logic. The memory store authentication values by which the print substance cartridge is authenticated by the printing device, and/or a cryptographic key from which authentication values are able to be generated within the print substance cartridge. The memory stores hash values corresponding to authentication values and by which the authentication values are verified by the printing device. The logic is to, in response to a request from the printing device for an authentication value, provide the requested authentication value to the printing device. The logic is to, in response to a request from the printing device for the hash value corresponding to the authentication value, provide the hash value corresponding to the authentication value to the printing device.

公开(公告)号：US20170366350A1

公开(公告)日：2017-12-21

申请号：US15469129

申请日：2017-03-24

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

Inventor： Erik D. Ness ,  Stephen D. Panshin ,  Jefferson P. Ward

IPC: H04L9/32 ,  G06F12/14

CPC classification number: H04L9/3226 ,  B41J2/17543 ,  B41J2/17546 ,  G06F12/1408 ,  G06F12/1458 ,  G06F2212/402 ,  H04L9/3236 ,  H04L9/3273

Abstract: A replaceable item for a host device includes a non-volatile memory and logic. The non-volatile memory stores passwords or authentication values, and/or a cryptographic key. The logic permits retrieval of a predetermined maximum number of the passwords from the non-volatile memory to authenticate the replaceable item within the host device. The predetermined maximum number of the passwords is less than the total number of the passwords.

公开(公告)号：US11840075B2

公开(公告)日：2023-12-12

申请号：US17863934

申请日：2022-07-13

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

Inventor： John Rossi ,  Erik D. Ness ,  James Michael Gardner ,  Scott A. Linn

IPC: B41J2/36 ,  B41J2/045

CPC classification number: B41J2/0454 ,  B41J2/04541 ,  B41J2/04546 ,  B41J2/04563 ,  B41J2/04586

Abstract: An integrated circuit includes thermal tracking logic, control logic, and an output interface. The thermal tracking logic determines a temperature of a fluid ejection die. The control logic defines an emulated parameter of the fluid ejection die as a function of the temperature of the fluid ejection die. The output interface outputs the emulated parameter to a printer system based on the function and the temperature of the fluid ejection die.

公开(公告)号：US11548276B2

公开(公告)日：2023-01-10

申请号：US16959065

申请日：2019-02-06

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

Inventor： Scott A. Linn ,  James Michael Gardner ,  Erik D. Ness

IPC: B41J29/38 ,  B41J2/045

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of first non-volatile memory cells and control logic. Each first non-volatile memory cell stores a customization bit. The control logic configures an operation of the integrated circuit based on the customization bits.

公开(公告)号：US20210354454A1

公开(公告)日：2021-11-18

申请号：US16972079

申请日：2019-02-06

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

Inventor： John Rossi ,  Erik D. Ness

IPC: B41J2/045 ,  G06F7/58

Abstract: In some examples, a fluid dispensing device includes a reservoir containing a fluid, fluidic actuators, and an interface to receive a data packet comprising information to control activation of the fluidic actuators, the data packet comprising a random number generated by a random number generator.

公开(公告)号：US20210276261A1

公开(公告)日：2021-09-09

申请号：US16609484

申请日：2017-10-05

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

Inventor： Brad Benson ,  David B. Novak ,  R. Joseph Megaw ,  Kevin E. Swier ,  Erik D. Ness ,  David C. Harvey

IPC: B29C64/343 ,  B29C64/255 ,  B29C64/393 ,  B29C64/329 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A system and method for operating a supply station in a three-dimensional printer are provided. The system includes a control unit, including a processor to execute modules. An install module confirms parameters of a build material container after the build material container is secured into a supply station to determine if the parameters match expected parameters. The install module releases the build material container if the parameters do not match the expected parameters.

公开(公告)号：US20210221124A1

公开(公告)日：2021-07-22

申请号：US16771080

申请日：2019-02-06

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

Inventor： Boon Bing Ng ,  Erik D. Ness ,  James Michael Gardner

IPC: B41J2/045

Abstract: In some examples, a fluid dispensing device component includes a plurality of fluidic dies each comprising a memory, a plurality of control inputs to provide respective control information to respective fluidic dies of the plurality of fluidic dies, and a data bus connected to the plurality of fluidic dies, the data bus to provide data of the memories of the plurality of fluidic dies to an output of the fluid dispensing device component.