Patents by Inventor James Michael Gardner

James Michael Gardner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • COMMUNICATING PRINT COMPONENT
    Publication number: 20210354450
    Abstract: A communicating print component a print head comprising a number of memory bits and a single lane analog bus conductively coupling the number of memory bits to a pad located on the exterior of the print head. The pad is to transmit an electrical signal from the number of memory bits, wherein the electrical signal indicates a combination of all selected bits of the number of memory bits.
    Type: Application
    Filed: February 6, 2019
    Publication date: November 18, 2021
    Inventors: James Michael Gardner, Scott A. Linn, John Rossi, Erik D. Ness
  • DIE FOR A PRINTHEAD
    Publication number: 20210354462
    Abstract: A die for a printhead is described herein. The die includes a number of fluid feed holes disposed in a line parallel to a longitudinal axis of the die, wherein the fluid feed holes are formed through a substrate of the die. The die includes a number of fluidic actuators, proximate to the fluid feed holes, to eject fluid received from the fluid feed holes. Circuitry on the die operates the fluidic actuators, wherein traces are provided in layers between adjacent fluid feed holes, connecting circuitry on each side of the fluid feed holes.
    Type: Application
    Filed: February 6, 2019
    Publication date: November 18, 2021
    Inventors: Michael W. Cumbie, Scott A. Linn, Anthony M. Fuller, James Michael Gardner
  • TEMPERATURE DETECTION AND CONTROL
    Publication number: 20210354458
    Abstract: A print component integrated circuitry package includes a number of temperature sensors where each of the plurality of the temperature sensors is disposed in a corresponding temperature region of an integrated circuitry. In an example, an analog sense bus conductively connects to all of the plurality of temperature sensors and an external sensor pad that is to connect to a corresponding print controller contact.
    Type: Application
    Filed: February 6, 2019
    Publication date: November 18, 2021
    Inventors: Michael W. Cumbie, Robert N. K. Browning, James Michael Gardner
  • COMMUNICATING PRINT COMPONENT
    Publication number: 20210354456
    Abstract: An integrated circuit to drive a number of fluid actuation devices, comprising a circuit configured to have a memory access state which can be set to one of an enabled state and disabled state. The integrated circuit to include a fluid actuation circuit to transmit selection information for a fluid actuation device, the selection information comprising a data state bit. The integrated circuit to include a memory cell array, configured so that each memory cell is accessible by the memory access state being enabled, and the data state bit being set.
    Type: Application
    Filed: February 6, 2019
    Publication date: November 18, 2021
    Inventors: Scott A. Linn, James Michael Gardner, Michael W. Cumbie
  • LOGIC CIRCUITRY
    Publication number: 20210354472
    Abstract: A logic circuitry package for a replaceable print apparatus component comprises an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The logic circuit may be configured to identify, from a command stream received from the print apparatus, parameters including a class parameter, and/or identify, from the command stream, a read request, and output, via the interface, a count value in response to a read request, the count value based on identified received parameters.
    Type: Application
    Filed: May 5, 2019
    Publication date: November 18, 2021
    Inventors: James Michael GARDNER, Scott A. LINN, Stephen D. PANSHIN, Jefferson P. WARD, David Owen ROETHIG, David N. OLSEN, Anthony D. STUDER, Michael W. CUMBIE, Sirena Chi LU
  • DIE FOR A PRINTHEAD
    Publication number: 20210354453
    Abstract: A die for a printhead is provided in examples. The die includes a number of fluidic actuator arrays, proximate to a number of fluid feed holes. A number of address lines are disposed proximate to a number of logic circuits on a low-voltage side of the fluid feed holes. An address decoder circuit is coupled to at least a portion of the address lines to select a fluidic actuator in a fluidic actuator array for firing. The address decoder circuit is customized to select a different address for each fluidic actuator in the fluidic actuator array. A logic circuit triggers a driver circuit located in a high-voltage side of the plurality of fluid feed holes opposite the low-voltage side, based, at least in part, on a bit value for the fluidic actuator array, the fluidic actuator selected by the address decoder circuit, and a firing signal.
    Type: Application
    Filed: February 6, 2019
    Publication date: November 18, 2021
    Inventors: Eric Martin, Scott A. Linn, James Michael Gardner
  • Fluidic die regulation modules
    Patent number: 11173711
    Abstract: A fluidic die that may, in an example, include a regulation module communicatively coupled to a clock generator to receive a clock signal, and a firing pulse adjustment regulator communicatively coupled to the regulation module to receive an adjustment value wherein the regulation module, when executed by a processor, adjusts an input firing pulse at the fluidic die based on the adjustment value.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 16, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Eric Martin, James Michael Gardner
  • LOGIC CIRCUITRY
    Publication number: 20210334392
    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.
    Type: Application
    Filed: December 3, 2018
    Publication date: October 28, 2021
    Inventors: Stephen D. PANSHIN, Jefferson P. WARD, Scott A. LINN, James Michael GARDNER
  • FLUIDIC DIE
    Publication number: 20210331465
    Abstract: A fluidic die includes a number of actuators to eject fluid from the fluidic die. The number of actuators form a number of primitives. The fluidic die includes a plurality of delays within a column of the primitives, and a processing device to control the delays through which a number of activation pulses pass. The activation pulses activate each of the actuators associated with the primitives. The activation pulses are delayed between the primitives via at least one of the delays to reduce peak power demands of the fluidic die.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 28, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Scott A Linn, Eric Martin, Vincent C Korthuis, James Michael Gardner
  • LOGIC CIRCUITRY
    Publication number: 20210334391
    Abstract: In an example, a method comprises, by logic circuitry associated with a replaceable print apparatus component, responding to a first validation request sent via an I2C bus to a first address associated with the logic circuitry with a first validation response; and responding to a second validation request sent via the I2C bus to a second address associated with the logic circuitry with a second validation response.
    Type: Application
    Filed: December 3, 2018
    Publication date: October 28, 2021
    Inventors: James Michael GARDNER, Scott A. LINN, Stephen D. PANSHIN, Jefferson P. WARD, David Owen ROETHIG
  • TEMPERATURE SENSING
    Publication number: 20210323301
    Abstract: Examples of a fluidic die for temperature sensing are described herein. In some examples, the fluidic die includes a plurality of resistor segments connected in series. In some examples, the fluidic die may include a plurality of first switches connected to a first side of each of the plurality of resistor segments. In some examples, the fluidic die includes a plurality of second switches connected to a second side of each of the plurality of resistor segments. In some examples, the fluidic die includes a differential amplifier to output a temperature voltage signal, where a first input of the differential amplifier is each of the first switches, and where a second input of the differential amplifier is connected each of the plurality of second switches.
    Type: Application
    Filed: November 16, 2018
    Publication date: October 21, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Rogelio Cicili, James Michael Gardner, Eric Thomas Martin, Daryl E. Anderson
  • PRINT COMPONENT WITH MEMORY CIRCUIT
    Publication number: 20210316550
    Abstract: A memory circuit for a print component including plurality of I/O pads, including a first analog pad and a second analog pad, to connect to a plurality of signal paths which communicate operating signals to the print component, including an analog signal path connected to the first analog pad and the second analog pad, the first analog pad electrically isolated from the second analog pad to interrupt the analog signal path to the print component. The memory circuit further includes a memory component to store memory values associated with the print component, and a control circuit to, in response to a sequence of operating signals received by the I/O pads representing a memory read, provide an analog signal to the analog pad to provide an analog electrical value at the analog pad representing stored memory values selected by the memory read.
    Type: Application
    Filed: July 31, 2019
    Publication date: October 14, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: James Michael GARDNER, Boon Bing NG
  • Integrated circuits including memory cells
    Patent number: 11141973
    Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of memory cells, a select circuit, configuration logic, and control logic. Each memory cell corresponds to a fluid actuation device. The select circuit selects fluid actuation devices and memory cells corresponding to the selected fluid actuation devices. The configuration logic enables or disables access to the plurality of memory cells. The control logic either activates the selected fluid actuation devices or accesses the memory cells corresponding to the selected fluid actuation devices based on a state of the configuration logic.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: October 12, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Scott A. Linn, James Michael Gardner, Michael W. Cumbie
  • CURRENT LEAKAGE TEST OF A FLUID EJECTION DIE
    Publication number: 20210276321
    Abstract: Example implementations relate to current leakage testing of a fluid ejection die. For example, a fluid ejection die may include plurality of nozzles, each nozzle among the plurality of nozzles including a nozzle sensor and a fluid ejector. The plurality of nozzle sensors may comprise a first subset and a second subset, each nozzle sensor among the plurality of nozzle sensors of the first subset may be electrically coupled to a first control line by a respective switch among a first group of switches, and each nozzle sensor among the plurality of nozzle sensors of the second subset may be electrically coupled to a second control line by a respective switch among a second group of switches. The fluid ejection die may include a control circuit to perform a current leakage test of the plurality of nozzles using the first control line and the second control line.
    Type: Application
    Filed: October 24, 2016
    Publication date: September 9, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner, Rogelio Cicili
  • FLUID PROPERTY SENSOR
    Publication number: 20210252871
    Abstract: This disclosure discusses a fluid property sensor, comprising an electrical circuit assembly (ECA) including an external interface coupled to a common interface bus; a fluid level sensor coupled to the common interface bus to indicate a fluid level and/or a pressure sensor coupled to the common interface bus to indicate a pressure event; and/or a driver circuit coupled to the common interface bus, configured to communicate characteristics of the fluid level sensor and the pressure sensor.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 19, 2021
    Inventors: Anthony D. STUDER, David N. OLSEN, Michael W. CUMBIE, Chien-Hua CHEN, James Michael GARDNER, Scott A. LINN
  • Fluid distinguishing devices
    Patent number: 11090928
    Abstract: A method of distinguishing between fluids may include providing a current to an electrode disposed within a fluidic passageway of a fluidic die, the current to be forced into a fluid within the fluidic die, sensing an impedance at the electrode, and determining a particle vehicle separation level of the fluid based on the sensed impedance between a first instance and a second instance.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 17, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Eric Martin, James Michael Gardner, James A. Feinn
  • PRINT COMPONENT WITH MEMORY CIRCUIT
    Publication number: 20210237434
    Abstract: A memory circuit for a print component including a plurality of I/O pads, including an analog pad, to connect to a plurality of signal paths which communicate operating signals to the print component. The memory circuit includes a controllable selector connected in line with one of the signal paths via the I/O pads, the selector controllable to disconnect the corresponding signal path to the print component, and a memory component to store memory values associated with the print component. A control circuit, in response to a sequence of operating signals received by the I/O pads representing a memory read, to operate the controllable selector to disconnect the signal path to the print component to block the memory read of the print component, and provide an analog signal to the analog pad to provide an analog electrical value at the analog pad representing stored memory values selected by the memory read.
    Type: Application
    Filed: July 31, 2019
    Publication date: August 5, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Boon Bing NG, James Michael GARDNER, Scott A. LINN
  • REPLACEABLE PRINT APPARATUS COMPONENT
    Publication number: 20210240400
    Abstract: A replaceable print apparatus component includes a print material reservoir, a print material within the reservoir and a sensing system including an integrated circuit configured to connect to and communicate over a digital bus. The sensing system includes at least one sensor, a digital controller, an analog to digital converter electrically coupled to the digital controller, and a memory array electrically coupled to the digital controller. The digital controller is configured to generate a clock signal for timing operations of the integrated circuit. The operations include initiating the at least one sensor based on values stored in the memory array and generating outputs of the at least one sensor via the analog to digital converter.
    Type: Application
    Filed: December 3, 2019
    Publication date: August 5, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Michael W. CUMBIE, Scott A. LINN, James Michael GARDNER
  • MICROFLUIDIC DEVICES WITH IMPEDANCE SETTING TO SET BACKPRESSURE
    Publication number: 20210237059
    Abstract: A microfluidic device may include a fluid channel defined in a substrate, an impedance sensor positioned within the fluid channel, and control logic. The control logic may force a current into the impedance sensor to sense an impedance at the location of the impedance sensor, the sensed impedance defining whether the fluid within the fluid channel is at the location of the impedance sensor, and instruct a pump device to apply a back pressure on the fluid to maintain the fluid upstream from the impedance sensor in response to a determination that the sensed impedance indicates that the fluid is located at the location of the impedance sensor.
    Type: Application
    Filed: August 9, 2018
    Publication date: August 5, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E. Anderson, James Michael Gardner, Eric Martin
  • LOGIC CIRCUITRY PACKAGE
    Publication number: 20210237435
    Abstract: A logic circuitry package includes an interface to communicate with a print apparatus logic circuit and at least one logic circuit. The logic circuit is configured to receive, via the interface, a plurality of first requests in a heater disabled mode, each first request corresponding to a different sensor ID of a plurality of sensor IDs; transmit, via the interface, a first digital value in response to each first request; receive, via the interface, a plurality of second requests in a heater enabled mode, each second request corresponding to a different sensor ID of the plurality of sensor IDs; and transmit, via the interface, a second digital value in response to each second request. Delta values corresponding to a difference between the first digital value and the second digital value for each different sensor ID of the plurality of sensor IDs are indicative of a print material level.
    Type: Application
    Filed: December 3, 2019
    Publication date: August 5, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: James Michael GARDNER, James William, David Owen, Christopher Hans