公开(公告)号：US10740275B1

公开(公告)日：2020-08-11

申请号：US16460016

申请日：2019-07-02

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

Inventor： Stephen D. Panshin ,  Scott A. Linn

IPC: G06F13/42 ,  G03G21/18 ,  B41J2/175

Abstract: Logic circuitry packages for association with replaceable print apparatus components are disclosed herein. An example logic circuitry package includes logic and a serial data bus interface. The serial data bus interface is to interface with a serial data bus of a print apparatus, and the logic is, in response to a first command sent to the logic circuitry package via the serial data bus connected to the serial data bus interface, to generate a low voltage condition on the serial data bus and to monitor a duration of a time period.

公开(公告)号：US20190278902A1

公开(公告)日：2019-09-12

申请号：US16423636

申请日：2019-05-28

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

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

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

Abstract: A non-transitory memory storing a digital signature of a consumable product where the digital signature indicates that an identifier and host device setting data are from a trusted source.

公开(公告)号：US09779340B2

公开(公告)日：2017-10-03

申请号：US14782942

申请日：2013-04-30

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

Inventor： Stephen D. Panshin ,  Rowdy K. Webb ,  Jefferson P. Ward

IPC: G06K15/00 ,  G06F21/10 ,  G06F3/12

CPC classification number: G06K15/4065 ,  G06F3/1203 ,  G06F3/1204 ,  G06F3/1222 ,  G06F3/1239 ,  G06F3/1296 ,  G06F21/10 ,  G06F21/105 ,  G06K15/408 ,  G06K15/4095

Abstract: Disclosed herein are a system, non-transitory readable medium, and method to manage license to use agreements. The maximum number of credits a device is allowed to consume is determined. An attacker resistant counter is increased using an atomic write.

公开(公告)号：US20170225477A1

公开(公告)日：2017-08-10

申请号：US15499537

申请日：2017-04-27

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

Inventor： Jefferson P. Ward ,  Stephen D. Panshin

IPC: B41J2/175 ,  H04L9/32

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：US09561662B2

公开(公告)日：2017-02-07

申请号：US14910816

申请日：2013-08-30

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

Inventor： Jefferson P. Ward ,  Stephen D. Panshin

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

CPC classification number: B41J2/17543 ,  B41J2/17546 ,  G06F7/58 ,  G06F21/445 ,  H04L9/3242 ,  H04L9/3271 ,  H04L63/0876 ,  H04L2463/121

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.

Abstract translation: 在示例实现中，打印供应盒包括微控制器，以接收定时挑战并通过提供质询响应来启用盒的认证。 挑战响应是在期望时间窗口内的挑战响应时间内提供的。

公开(公告)号：US20160187827A1

公开(公告)日：2016-06-30

申请号：US14908709

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: G03G15/00

CPC classification number: G03G15/5091 ,  B41J2/17543 ,  B41J2/17546 ,  G06F21/44 ,  G06F21/608 ,  G06F21/73 ,  G06F2221/2111 ,  G06F2221/2129 ,  G06F2221/2135 ,  G06F2221/2149 ,  H04L9/14 ,  H04L9/30 ,  H04L9/3247 ,  H04L63/0435

Abstract: Methods and systems are described to determine authenticity of a consumable product. The determining of authenticity may include communicating with a listing engine that contains a list of identifiers for consumable products classified as non-authentic, installing a consumable product in the host device where the consumable product stores an identifier in memory, and determining whether the consumable product matches one of the identifiers.

Abstract translation: 描述了方法和系统以确定消耗品的真实性。 真实性的确定可以包括与包含被分类为不可信的消费品的标识符列表的列表引擎进行通信，在消费品在存储器中存储标识符的主机设备中安装消耗品，以及确定消耗品 匹配其中一个标识符。

公开(公告)号：US20160164868A1

公开(公告)日：2016-06-09

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

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.

Abstract translation: 远程验证设备包括在受控环境中产生认证数据和秘密密钥数据，将认证数据发送到远程认证引擎，并将秘密密钥数据发送到个性化引擎，以在发送认证后将秘密密钥数据应用于设备 数据发送到远程认证引擎，使得远程认证引擎具有认证设备的能力。

公开(公告)号：US12240245B2

公开(公告)日：2025-03-04

申请号：US16977675

申请日：2018-12-03

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

Inventor： James Michael Gardner ,  Scott A. Linn ,  Stephen D. Panshin ,  Jefferson P. Ward ,  David Owen Roethig

IPC: G06F21/44 ,  B41J2/175 ,  G06F21/74 ,  G06F21/85

Abstract: In an example, a logic circuit comprising a communications interface including a data contact to communicate via a communications bus, an enablement contact, separate from the communication interface, to receive an input to enable the logic circuit, and at least one memory register, comprising at least one reconfigurable address register. The logic circuit may be configured, such that, when enabled, it responds to communications sent via the communication bus which are addressed to the address held in a reconfigurable address register.

公开(公告)号：US11691429B2

公开(公告)日：2023-07-04

申请号：US17405638

申请日：2021-08-18

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

Inventor： Jefferson P. Ward ,  Stephen D. Panshin

IPC: H04L9/32 ,  B41J2/175 ,  G06F21/44 ,  H04L9/40 ,  G06F7/58 ,  H04W12/61 ,  G06Q30/018

CPC classification number: B41J2/17543 ,  B41J2/17546 ,  G06F7/58 ,  G06F21/445 ,  H04L9/3242 ,  H04L9/3247 ,  H04L9/3271 ,  H04L63/0876 ,  G06Q30/018 ,  H04L2463/121 ,  H04W12/61

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：US20210271748A1

公开(公告)日：2021-09-02

申请号：US17323339

申请日：2021-05-18

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

Inventor： Shell S. Simpson ,  Jefferson P. Ward ,  Stephen D. Panshin ,  David B. Novak

IPC: G06F21/44 ,  G06F21/57 ,  G06F21/73 ,  H04L9/32

Abstract: An example print supply includes a non-transitory computer-readable medium. The non-transitory computer-readable medium includes data. The data includes an indication of a schema for the data. The data also includes an indication of an identifier. The data includes an indication of a digital signature. The digital signature is usable to authenticate a type of the data, the schema, and the identifier. The print supply also includes a communication interface. The communication interface is to output the data from the non-transitory computer-readable medium.