公开(公告)号：US09882899B2

公开(公告)日：2018-01-30

申请号：US14908030

申请日：2013-07-31

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

Inventor： John Cunningham ,  Jefferson P Ward ,  Stephen D. Panshin ,  Laurent Pizot

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/14 ,  H04L9/32

CPC classification number: H04L63/0869 ,  H04L9/0877 ,  H04L9/14 ,  H04L9/3271 ,  H04L63/0435

Abstract: Remotely authenticating a device includes generating authentication data and secret key data in a controlled environment, sending the authentication data to a remote authentication engine, and sending the secret key data to a personalization engine to apply the secret key data to a device after sending the authentication data to the remote authentication engine such that the remote authentication engine has an ability to authenticate the device.

公开(公告)号：US11207892B2

公开(公告)日：2021-12-28

申请号：US16606017

申请日：2017-10-18

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

Inventor： Kevin Rourke ,  John McNeilly ,  Jefferson P Ward

IPC: B41J2/175 ,  G03G21/18

Abstract: In an example, a method comprises fabricating a first validation device for association with a first replaceable print apparatus component. The device may be to form part of circuitry arranged on the first replaceable print apparatus component, and may provide an associated electrically detectable characteristic which varies with the position of at least part of the first validation device. The electrically detectable characteristic may be measured and data indicative of the characteristic may be stored in a first memory. The first replaceable print apparatus component comprising the first device and the first memory may be assembled.

公开(公告)号：US09925811B2

公开(公告)日：2018-03-27

申请号：US15308096

申请日：2014-07-31

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

Inventor： Steven B Elgee ,  Jefferson P Ward ,  Jayprakash C Bhatt

IPC: B41J29/393 ,  B41J2/175 ,  B41J2/195

CPC classification number: B41J29/393 ,  B41J2/17546 ,  B41J2/195

Abstract: Methods, apparatus, systems and articles of manufacture to control operation of a printer based on whether a marker is detected in a pigment ink are disclosed. Example apparatus include an optical sensor to detect a marker in a vehicle component of the pigment ink. The vehicle is depleted of a pigment component. The apparatus also includes a controller to control operation of the printer based on whether the marker is detected. The apparatus can also include an authorizer to determine whether the printer in which the pigment ink is installed is authorized to use the pigment ink having the marker. The controller of the apparatus is to control operation of the printer by transmitting a control signal to a print head processor to halt printing operations. The apparatus can additionally include a filter to deplete the vehicle component of the pigment component.

公开(公告)号：US20170057267A1

公开(公告)日：2017-03-02

申请号：US15308096

申请日：2014-07-31

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

Inventor： Steven B Elgee ,  Jefferson P Ward ,  Jayprakash C Bhatt

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B41J2/17546 ,  B41J2/195

Abstract: Methods, apparatus, systems and articles of manufacture to control operation of a printer based on whether a marker is detected in a pigment ink are disclosed. Example apparatus include an optical sensor to detect a marker in a vehicle component of the pigment ink. The vehicle is depleted of a pigment component. The apparatus also includes a controller to control operation of the printer based on whether the marker is detected. The apparatus can also include an authorizer to determine whether the printer in which the pigment ink is installed is authorized to use the pigment ink having the marker. The controller of the apparatus is to control operation of the printer by transmitting a control signal to a print head processor to halt printing operations. The apparatus can additionally include a filter to deplete the vehicle component of the pigment component.

Abstract translation: 公开了基于在颜料墨水中是否检测到标记物来控制打印机的操作的方法，装置，系统和制品。 示例性装置包括用于检测颜料墨水的车辆部件中的标记物的光学传感器。 车辆耗尽色素成分。 该装置还包括控制器，用于基于是否检测到标记来控制打印机的操作。 该设备还可以包括授权器，以确定其中安装有颜料墨水的打印机是否被授权使用具有该标记的颜料墨水。 该装置的控制器是通过向打印头处理器发送控制信号来停止打印操作来控制打印机的操作。 该装置还可以包括用于消耗颜料组分的载体组分的过滤器。

公开(公告)号：US11052669B2

公开(公告)日：2021-07-06

申请号：US16644607

申请日：2017-10-18

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

Inventor： Paul Jeran ,  Bartley Mark Hirst ,  Jefferson P Ward ,  Dee Chou

IPC: B41J2/175

Abstract: In one example, an article for a replaceable printer component includes an integrated circuit device having a device controller, a conductor to supply power to the device controller and to carry a signal to and from the device controller, and a sensor operatively connected to the device controller to sense a voltage and/or a frequency on the conductor. The device controller to send an indication of a sensed voltage and/or a sensed frequency to the printer controller.

公开(公告)号：US20210097165A1

公开(公告)日：2021-04-01

申请号：US16606206

申请日：2017-10-18

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

Inventor： Kevin Rourke ,  John McNeilly ,  Jefferson P Ward

IPC: G06F21/44 ,  G06F21/70 ,  B41J2/175

Abstract: In an example, replaceable print apparatus component authentication apparatus comprises a memory and circuitry. An electrical characteristic of the circuitry may be variable in response to a stimulus, and the memory may store data indicative of an expected variation in the electrical characteristic in response to the stimulus which is associated with a variation in capacitance.

公开(公告)号：US10432825B2

公开(公告)日：2019-10-01

申请号：US15504048

申请日：2014-08-19

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

Inventor： Stephen J Nichols ,  Jay S Gondek ,  Jefferson P Ward

IPC: H04N1/60

Abstract: Color data may be collected from a plurality of sources. A plurality of color map selection fields may be indexed at a table to a plurality of color maps. The plurality of color maps may be based on the collected color data. Each entry of the table may include an identifier to match one of the plurality of color maps to at least one permutation of the color map selection fields.

公开(公告)号：US11487864B2

公开(公告)日：2022-11-01

申请号：US16606206

申请日：2017-10-18

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

Inventor： Kevin Rourke ,  John McNeilly ,  Jefferson P Ward

IPC: G06F21/44 ,  B41J2/175 ,  G06F21/70

Abstract: In an example, replaceable print apparatus component authentication apparatus comprises a memory and circuitry. An electrical characteristic of the circuitry may be variable in response to a stimulus, and the memory may store data indicative of an expected variation in the electrical characteristic in response to the stimulus which is associated with a variation in capacitance.

公开(公告)号：US11177954B2

公开(公告)日：2021-11-16

申请号：US16083048

申请日：2016-06-20

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

Inventor： John L McWilliams ,  Jefferson P Ward ,  Stephen D Panshin ,  Francisco Alcazar

IPC: G06F21/60 ,  H04L9/08 ,  H04L29/06 ,  G06F21/85 ,  G06F21/72 ,  G06F21/78

Abstract: An example system includes a secure processing engine. The secure processing engine is to store a host key. The system also includes an integrated circuit in a single package. The integrated circuit includes a firmware engine to execute firmware instructions. The integrated circuit also includes a one-time-programmable (OTP) memory unreadable by the firmware engine. The OTP memory is to store the host key. The integrated circuit also includes a security engine. The security engine is to encrypt and decrypt communications between the firmware engine and the secure processing engine based on the host key.

公开(公告)号：US20190089534A1

公开(公告)日：2019-03-21

申请号：US16083048

申请日：2016-06-20

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

Inventor： John L McWilliams ,  Jefferson P Ward ,  Stephen D Panshin ,  Francisco Alcazar

IPC: H04L9/08 ,  G06F21/78 ,  G06F21/60 ,  H04L29/06

Abstract: An example system includes a secure processing engine. The secure processing engine is to store a host key. The system also includes an integrated circuit in a single package. The integrated circuit includes a firmware engine to execute firmware instructions. The integrated circuit also includes a one-time-programmable (OTP) memory unreadable by the firmware engine. The OTP memory is to store the host key. The integrated circuit also includes a security engine. The security engine is to encrypt and decrypt communications between the firmware engine and the secure processing engine based on the host key.