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    SECURE UPGRADE SUPPLIES AND METHODS
    42.
    发明申请
    SECURE UPGRADE SUPPLIES AND METHODS 有权
    安全升级和方法

    公开(公告)号：US20160034802A1

    公开(公告)日：2016-02-04

    申请号：US14879656

    申请日：2015-10-09

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

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

    IPC: G06K15/00 ,  G06F21/60 ,  G06F21/44 ,  G06F9/445

    CPC classification number: G06K15/4095 ,  G06F8/65 ,  G06F21/44 ,  G06F21/572 ,  G06F21/608 ,  G06F2221/2129 ,  G06F2221/2153 ,  G06K2215/002

    Abstract: Example secure upgrade supplies and methods are disclosed. A disclosed example upgrade supply cartridge structured includes a chamber to store a material useable by the imaging forming apparatus to form an image on media; a security device to provide an authentication credential to an image forming apparatus, the authentication credential useable to authenticate an identity of the upgrade supply cartridge; and a tamperproof data storage including upgrade data useable by the image forming apparatus to activate a capability included but disabled in the image forming apparatus, the tamperproof data storage structured to store an identifier of the image forming apparatus after the upgrade supply cartridge has been utilized by the image forming apparatus to activate the disabled capability.

    Abstract translation: 披露示例的安全升级用品和方法。 所公开的示例性升级供应盒结构包括：存储由成像装置可用的材料以在介质上形成图像的室; 为图像形成装置提供认证证书的安全装置，可用于认证升级供应盒的标识的认证凭证; 以及防篡改数据存储器，包括由图像形成装置可使用的升级数据，以启动图像形成装置中包括但禁用的能力，篡改数据存储器被构造为在升级提供盒被利用之后存储图像形成装置的标识符 所述图像形成装置激活所述禁用能力。

    Logic circuitry for print material supply cartridges
    44.
    发明授权
    Logic circuitry for print material supply cartridges 有权

    公开(公告)号：US11513992B2

    公开(公告)日：2022-11-29

    申请号：US17364027

    申请日：2021-06-30

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

    Inventor： Stephen D. Panshin ,  Scott A. Linn

    IPC: G06F13/42 ,  B41J2/175 ,  G03G21/18 ,  G06F13/38 ,  H04N1/00

    Abstract: An example replaceable print material supply cartridge that is removably couplable to a host printer is disclosed. The example replaceable print material supply cartridge includes an ink reservoir and a logic circuitry package. The logic circuitry package includes logic circuitry and a serial data bus interface, wherein the serial data bus interface is to interface with a serial data bus of the host printer. In response to a first command sent to the logic circuitry package via the serial data bus connected to the serial data bus interface, the first command including a time period, the logic circuitry is to cause generation of a low voltage condition on the serial data bus for a duration based on the time period, and, after the duration, cause a return to a default voltage condition on the serial data bus.

    Logic circuitry
    46.
    发明授权
    Logic circuitry 有权

    公开(公告)号：US11364716B2

    公开(公告)日：2022-06-21

    申请号：US16771092

    申请日：2018-12-03

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

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

    IPC: B41J2/045 ,  B41J2/175 ,  G06F13/42

    Abstract: In an example, a logic circuitry package is configured to be addressable via a first address and at least one second address and comprises a first logic circuit. The first address may be an address for the first logic circuit, and the package may be configured such that, in response to a first command indicative of a first command time period sent to the first address, the package is accessible via at least one second address for a duration of the first command time period; and in response to a second command indicative of a second command time period sent to the first address, the first logic circuit is to, for a duration of the second command time period, disregard traffic sent to the first address.

    Logic circuitry for a replicable print cartridge
    48.
    发明授权
    Logic circuitry for a replicable print cartridge 有权

    公开(公告)号：US11068434B2

    公开(公告)日：2021-07-20

    申请号：US16781052

    申请日：2020-02-04

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

    Inventor： Stephen D. Panshin ,  Scott A. Linn

    IPC: G06F13/42 ,  B41J2/175 ,  G03G21/18 ,  G06F13/38 ,  H04N1/00

    Abstract: Logic circuitry packages for association with replaceable print apparatus components are disclosed herein. An example logic circuitry package includes a timer and a serial data bus interface including a data contact and a clock contact, the serial data bus interface to interface with a serial data bus of a printer. The example logic circuitry package also includes logic circuitry to, in response to a first command sent to the logic circuitry package via the serial data bus of the printer: initiate a low voltage on the data contact; wait for a time period tracked by the timer to expire, without reference to a clock signal at the clock contact from the serial data bus; and upon expiration of the time period, cause the data contact to assume a second voltage different than the low voltage. The first command specifies a duration of the time period and the example logic circuitry is to maintain the low voltage on the data contact based on the duration of the time period.

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