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    Logic circuitry
    2.
    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.

    Logic circuitry package
    4.
    发明授权
    Logic circuitry package 有权

    公开(公告)号：US11292261B2

    公开(公告)日：2022-04-05

    申请号：US16767589

    申请日：2019-12-03

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

    Inventor： Jefferson P. Ward

    IPC: B41J2/175 ,  G06F13/42 ,  G06F21/44

    Abstract: A logic circuitry package for a print apparatus component includes an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The at least one logic circuit is configured to receive, via the interface, a command series addressed to a first default address and a second default address, and transmit, via the interface, at least one response in response to at least one command of the command series. The at least one logic circuit is configured to receive, via the interface, an other command series addressed to an other first default address and subsequently, the second default address, and transmit, via the interface, at least one other response in response to at least one other command of the other command series.

    LOAD CELLS FOR PRINT SUPPLIES
    6.
    发明申请
    LOAD CELLS FOR PRINT SUPPLIES 有权

    公开(公告)号：US20210354473A1

    公开(公告)日：2021-11-18

    申请号：US16605792

    申请日：2018-08-01

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

    Inventor： Jefferson P. Ward

    IPC: B41J2/175

    Abstract: A print supply, the print supply containing a print material and to connect to a printing device to provide the print material to the printing device that includes a container to maintain the print material, an integrated circuit coupled to the box to interface electrically with the printing device, and a load cell communicatively coupled to the integrated circuit to detect a weight of the print liquid supply.

    Replaceable item authentication
    7.
    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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