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    LOGIC CIRCUITRY FOR PRINT MATERIAL SUPPLY CARTRIDGES
    12.
    发明申请
    LOGIC CIRCUITRY FOR PRINT MATERIAL SUPPLY CARTRIDGES 有权

    公开(公告)号：US20210326296A1

    公开(公告)日：2021-10-21

    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
    13.
    发明申请
    LOGIC CIRCUITRY 有权

    公开(公告)号：US20210097018A1

    公开(公告)日：2021-04-01

    申请号：US16495238

    申请日：2019-02-11

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

    Inventor： Stephen D. PANSHIN ,  Scott A. LINN

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

    Abstract: A logic circuitry package for association with a replaceable print apparatus component comprises: logic and a serial data bus interface, wherein the serial data bus interface is to interface with a serial data bus of a print apparatus, and, wherein 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, the first command including a time period, to generate a low voltage condition on the serial data bus for a duration based on the time period, and, after the duration, return to a default voltage condition on the serial data bus.

    LOGIC CIRCUITRY
    18.
    发明申请
    LOGIC CIRCUITRY 有权

    公开(公告)号：US20210326297A1

    公开(公告)日：2021-10-21

    申请号：US17364052

    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: Replaceable print material supply cartridges for printers are disclosed herein. An example replaceable print material supply cartridge includes logic circuitry that is to determine a position of the replaceable print material supply cartridge by initiating a first voltage on a data contact during a time period, monitoring a timer without reference to a clock signal at a clock contact from a serial data bus, and maintaining a first voltage on the data contact for a duration of time. After expiration of the duration, the logic circuitry is to cause the data contact to assume a second voltage, different than the first voltage, and the logic circuitry is to read data from the memory and cause transmission of a data signal via the serial data bus interface.

    LOGIC CIRCUITRY
    19.
    发明申请
    LOGIC CIRCUITRY 有权

    公开(公告)号：US20210221125A1

    公开(公告)日：2021-07-22

    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

    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.

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