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    Logic circuitry package
    14.
    发明授权
    Logic circuitry package 有权

    公开(公告)号：US11479048B2

    公开(公告)日：2022-10-25

    申请号：US16959391

    申请日：2019-10-25

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

    Inventor： Stephen D. Panshin ,  David Owen Roethig ,  James Michael Gardner

    IPC: B41J2/175

    Abstract: A logic circuitry package for a replaceable print apparatus component includes an interface and at least one logic circuit. The at least one logic circuit is configured to respond to communications sent to a first address via the interface and respond to communications sent to a second address via the interface. The at least one logic circuit is configured to in response to a hibernate command sent to the first address, respond to communications sent to the second address.

    Power management in a logic circuitry package
    15.
    发明授权
    Power management in a logic circuitry package 有权

    公开(公告)号：US11409487B2

    公开(公告)日：2022-08-09

    申请号：US16959397

    申请日：2019-10-25

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

    Inventor： James Michael Gardner ,  Stephen D. Panshin

    IPC: G06F3/12 ,  B41J2/00 ,  G06F21/00 ,  G06K15/00 ,  H03K19/00 ,  B41J2/175

    Abstract: A logic circuitry package for a replaceable print apparatus component includes an interface including a power terminal and at least one logic circuit. The at least one logic circuit is configured to respond to communications sent to a first address via the interface and respond to communications sent to a second address via the interface. The at least one logic circuit is configured to in response to a first command sent to the first address, draw a first current on the power terminal; and in response to a hibernate command sent to the first address, respond to communications sent to the second address and draw a second current on the power terminal less than the first current.

    Logic circuitry
    17.
    发明授权
    Logic circuitry 有权

    公开(公告)号：US11366913B2

    公开(公告)日：2022-06-21

    申请号：US16495248

    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: G06F21/60 ,  B41J2/175 ,  G06F21/44 ,  G06F21/84

    Abstract: In an example, a logic circuitry package is configured to communicate with a print apparatus logic circuit. The logic circuitry package may be configured to respond to communications sent to a first address and to at least one second address. The logic circuitry package may comprise a first logic circuit, wherein the first address is an address for the first logic circuit. The package may be configured such that, in response to a first command indicative of a task and a first time period sent to the first address, the package is accessible via at least one second address for a duration of the time period.

    Replaceable item authentication
    18.
    发明授权
    Replaceable item authentication 有权

    公开(公告)号：US11001069B2

    公开(公告)日：2021-05-11

    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 ,  G06F21/44 ,  G06F21/57 ,  H04L9/08 ,  H04N1/44 ,  G06F3/12 ,  G03G15/08 ,  H04L29/06 ,  G06F21/60

    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.

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