公开(公告)号：US10680822B2

公开(公告)日：2020-06-09

申请号：US16511912

申请日：2019-07-15

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

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

IPC: G06F21/44 ,  H04L9/32 ,  B41J2/175 ,  G06F12/14

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 stores authentication values by which the print substance cartridge is authenticated by the printing device, and/or a cryptographic key from which a plurality of authentication values are able to be generated within the print substance cartridge. The memory stores hash values corresponding to the authentication values and by which the authentication values are verifiable by the printing device. The logic is to, in response to a request from the printing device for one of the authentication values and including an identifier, provide the authentication value associated with the identifier to the printing device. The logic is to, in response to a request from the printing device for one or more hash values of the hash values, provide the requested one or more hash values.

公开(公告)号：US10205596B2

公开(公告)日：2019-02-12

申请号：US14908692

申请日：2013-07-31

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

Inventor： Paul L. Jeran ,  Shell S. Simpson ,  Stephen D. Panshin ,  Jefferson P. Ward

IPC: H04L29/00 ,  H04L9/32 ,  G03G21/18 ,  B41J2/175 ,  H04L29/06 ,  G03G15/08 ,  G03G15/00

Abstract: Authenticating a consumable product based on a remaining life value includes determining whether an identifier stored in memory of a consumable product is listed in a device history and concluding that the consumable product is not authentic if the device is determined to have used the consumable product previously based on the device history and a current remaining life value associated with the consumable product indicates less use than a recorded remaining life value for the consumable product associated with the identifier in the device history.

公开(公告)号：US10084760B2

公开(公告)日：2018-09-25

申请号：US15068112

申请日：2016-03-11

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

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

IPC: H04L29/06 ,  H04L29/08 ,  H04L9/08 ,  H04L9/32 ,  H04W4/70

CPC classification number: H04L63/0442 ,  H04L9/0844 ,  H04L9/3263 ,  H04L63/0823 ,  H04L63/126 ,  H04L67/02 ,  H04L67/141 ,  H04L2209/805 ,  H04W4/70

Abstract: Example implementations relate to secure messages for IoT devices. For example, a system for secure messages for IoT devices may include an IoT device coupled to a network including a plurality of web services. The IoT device may store a service certificate for each of the plurality of web services, generate a secure message for a web service among the plurality of web services using the stored service certificate for the web service, and send the secure message to the web service without first establishing a connection between the IoT device and the web service.

公开(公告)号：US20180117920A1

公开(公告)日：2018-05-03

申请号：US15673024

申请日：2017-08-09

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

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

IPC: B41J2/175 ,  G06F21/57 ,  H04N1/44 ,  G06F21/44 ,  H04L9/08 ,  G06F21/60 ,  H04L29/06

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 satisfactorily responds to requests for passwords a maximum permitted number of times to authenticate the replaceable item within the host device.

公开(公告)号：US20180099507A1

公开(公告)日：2018-04-12

申请号：US15838015

申请日：2017-12-11

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

Inventor： Jefferson P. Ward ,  Stephen D. Panshin

IPC: B41J2/175 ,  H04L9/32 ,  G06F7/58 ,  G06F21/44 ,  H04L29/06

Abstract: In an example implementation, a print supply cartridge comprises a microcontroller to receive a timing challenge and enable authentication of the cartridge by providing a challenge response. The challenge response is provided in a challenge response time that falls within an expected time window.

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：US09878555B2

公开(公告)日：2018-01-30

申请号：US14913982

申请日：2013-08-30

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

Inventor： Jefferson P. Ward ,  Stephen D. Panshin

IPC: B41J2/175 ,  G06Q20/10 ,  G03G15/08 ,  G06F21/44 ,  H04L29/06 ,  H04L9/32

CPC classification number: B41J2/17546 ,  G03G15/0863 ,  G06F21/44 ,  G06F2221/2103 ,  G06F2221/2151 ,  H04L9/3271 ,  H04L63/0876

Abstract: In an example implementation, an authentication system includes a printer having a controller and a memory. The authentication system also includes an authentication algorithm stored in the memory and executable on the controller to issue a cryptographic timing challenge, and to authenticate a print supply cartridge when the cartridge provides a challenge response corresponding to an expected response within an expected time window.

公开(公告)号：US20160250872A1

公开(公告)日：2016-09-01

申请号：US15149753

申请日：2016-05-09

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

Inventor： Stephen D. Panshin ,  Jefferson P. Ward ,  David B. Novak ,  Glenn D. McCloy ,  Brian L. Helterline

IPC: B41J29/38 ,  G06F21/60

CPC classification number: B41J29/38 ,  B41J2/17546 ,  G03G15/0863 ,  G03G2215/0697 ,  G03G2221/1823 ,  G06F21/602 ,  G06F21/79 ,  H04L2209/04

Abstract: A replaceable printer component includes a memory device to store a tag encryption mask and data. The data is stored in a plurality of blocks of the memory device wherein each block is defined by a tag. The tag encryption mask indicates an encryption status of each block of the memory device defined by the tag. The replaceable printer component includes a communication link to communicatively link the memory device to a printer controller when the replaceable printer component is installed in a printing system. The tag encryption mask is stored within a header of the memory device. Each tag defines a type and a length of the data stored in the blocks.

Abstract translation: 可替换的打印机组件包括存储设备以存储标签加密掩码和数据。 数据被存储在存储设备的多个块中，其中每个块由标签定义。 标签加密掩码表示由标签定义的存储器件的每个块的加密状态。 可替换打印机组件包括通信链路，当可更换打印机部件安装在打印系统中时，通信链路将存储器设备通信地链接到打印机控制器。 标签加密掩码存储在存储设备的标题内。 每个标签定义存储在块中的数据的类型和长度。

公开(公告)号：US20160011554A1

公开(公告)日：2016-01-14

申请号：US14764884

申请日：2013-01-31

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

Inventor： Amy Shipman ,  Rowdy K. Webb ,  Jefferson P. Ward ,  Stephen D. Panshin ,  Mark Hickman

IPC: G03G15/00

Abstract: Techniques pertaining to printing a document are disclosed. A printer may include a replaceable marking supply that is either an unrestricted trade supply or a restricted subscription supply. The printer may accommodate either of the unrestricted trade supply or the restricted subscription supply at any given moment.

Abstract translation: 公开了打印文档的技术。 打印机可以包括可替换的标记供应，其是不受限制的贸易供应或限制订阅供应。 打印机可以在任何给定的时刻适应任何一个无限制的贸易供应或限制订阅供应。

公开(公告)号：US11738562B2

公开(公告)日：2023-08-29

申请号：US17864662

申请日：2022-07-14

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

Inventor： James Michael Gardner ,  Scott A. Linn ,  Stephen D. Panshin ,  Jefferson P. Ward ,  David Owen Roethig ,  David N. Olsen ,  Anthony D. Studer ,  Michael W. Cumbie ,  Sirena Chi Lu

IPC: B41J2/175 ,  B41J29/393 ,  G01L23/08 ,  G06F13/42 ,  G06F21/44 ,  G06K15/00 ,  B33Y50/00 ,  G03G15/08 ,  G06K15/10 ,  G06F9/30 ,  G06F21/62 ,  H04L9/08 ,  H04L9/32

CPC classification number: B41J2/17546 ,  B33Y50/00 ,  B41J2/1752 ,  B41J2/1753 ,  B41J2/17513 ,  B41J2/17523 ,  B41J2/17526 ,  B41J2/17553 ,  B41J2/17556 ,  B41J2/17559 ,  B41J2/17566 ,  B41J29/393 ,  G01L23/08 ,  G03G15/0856 ,  G03G15/0863 ,  G06F9/30105 ,  G06F13/42 ,  G06F13/4282 ,  G06F21/44 ,  G06F21/62 ,  G06K15/102 ,  G06K15/4075 ,  H04L9/0819 ,  H04L9/3242 ,  B41J2002/17516 ,  B41J2002/17579 ,  B41J2002/17586 ,  B41J2202/13 ,  B41J2202/20 ,  G05B2219/49023 ,  G06F2213/0016 ,  G06F2213/40

Abstract: A logic circuitry package for a replaceable print apparatus component comprises an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The logic circuit may be configured to identify, from a command stream received from the print apparatus, parameters including a class parameter, and/or identify, from the command stream, a read request, and output, via the interface, a count value in response to a read request, the count value based on identified received parameters.