Patents by Inventor Duane A. Koehler

Duane A. Koehler 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).

  • Patent number: 11376858
    Abstract: In some examples, a controller may include a processing resource and a memory resource storing non-transitory machine-readable instructions that are executed to cause the processing resource to direct a clock signal of an imaging device to a fill port via a detection circuit of the imaging device, determine based on a state of a switch included in the detection circuit whether the fill port is open or closed, determine based on the state of the switch indicating the fill port is closed a status of the fill port, and in response to the status of the fill port being closed, determine based on a voltage of the clock signal whether the fill port is connected to a colorant container.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 5, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Tyler Phillip Kapp, Kenneth Williams
  • Patent number: 11345166
    Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. A first load request is received from a first heater system and a second load request is received from a second heater system. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. The power grants include a first power grant based on the first load request and a second power grant based on the second load request. The power grants are adjusted based on a contextual printing condition. The power grants are adjusted to apportion a measure of the second power grant to the first power grant rather than provide the measure of the second power grant to the second heater system if a print substance density is outside a selected print substance density threshold.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 31, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Daniel James Magnusson
  • Patent number: 11312157
    Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. A power grant is adjusted based on a contextual printing condition to provide an adjusted grant from the power source to a printing device heater system of the printing device heater systems.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: April 26, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Daniel James Magnusson
  • Patent number: 11307523
    Abstract: A volt meter and a current meter may measure a voltage and a current for the calculation of power consumption. A controller may calculate the power consumption when a heating element is activated and when the heating element is deactivated. Based on the power consumptions when the heating element is activated or deactivated, a failure condition may be determined.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Robert Yraceburu
  • Patent number: 11305525
    Abstract: An example printing device may comprise an indicator to convey information to a user, a print substance reservoir to house a print substance, where the print substance reservoir is communicatively coupled to a fill port, a sensor to determine when a refill container is connected to the fill port, a processing resource, and a non-transitory machine-readable medium storing instructions executable by the processing resource to transmit signals to the indicator responsive to an indication that the sensor has detected the refill container connected to the fill port, where the signals correspond to the information to be conveyed by the indicator, and authenticate the refill container.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Howard G Wong, Wesley R Schalk, Kris R Livingston, Duane A Koehler, Kenneth Williams, Tyler Kapp
  • Patent number: 11300595
    Abstract: Apparatus, systems, articles of manufacture, and methods to provide an adaptive connection of a resistive element and a temperature-dependent resistive element are disclosed. An example apparatus includes a temperature-dependent resistive element. The example apparatus further includes a resistive element. The example apparatus further includes a switch coupled to the temperature-dependent resistive element and the resistive element. The example apparatus further includes a current sensor to measure a current through the temperature-dependent resistive element. The example apparatus further includes a processor to control the switch to, based on the measured current, (A) couple the temperature-dependent resistive element in parallel to the resistive element or (B) couple the temperature-dependent resistive element in series with the resistive element.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: April 12, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Robert Yraceburu
  • Patent number: 11294437
    Abstract: A system for reducing inrush current to an electronic component, the system including: a power supply, the power supply providing power at multiple non-zero voltages; and the electronic component; wherein, when the electronic component is connected to the power supply, the power supply provides a first non-zero voltage to the electronic component and, in response to a signal from the electronic component, provides a second voltage, the second voltage being higher than the first voltage, to the electronic component.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 5, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Paul D Bliley, Tyler Phillip Kapp, Duane A Koehler
  • Patent number: 11269275
    Abstract: According to examples, an apparatus may include a processor and a nontransitory computer readable medium storing machine readable instructions that when executed by the processor may cause the processor to receive a requested power demand from a first heating component and a second heating component, compare the requested power demand to a first threshold, and select a sequencing and stacking group of a plurality of sequencing and stacking groups for the first heating component and the second heating component corresponding to a result of the requested power demand being compared to the first threshold. The instructions may also cause the processor to control application of power to the first heating component and the second heating component according to the selected sequencing and stacking group.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 8, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Francisco Alcazar, Vladislav Shapoval
  • Publication number: 20220050409
    Abstract: A volt meter and a current meter may measure a voltage and a current for the calculation of power consumption. A controller may calculate the power consumption when a heating element is activated and when the heating element is deactivated. Based on the power consumptions when the heating element is activated or deactivated, a failure condition may be determined.
    Type: Application
    Filed: April 30, 2019
    Publication date: February 17, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Robert Yraceburu
  • Publication number: 20220050413
    Abstract: An apparatus may include a power connection to receive an input power and a volt meter coupled to the power connection. The volt meter may be to measure an input voltage of the input power. A controller may be coupled to a heating element and the volt meter. The controller may control the heating element based on the input voltage measured by the volt meter.
    Type: Application
    Filed: April 30, 2019
    Publication date: February 17, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Robert Yraceburu
  • Patent number: 11230111
    Abstract: A print supply, the print supply to connect to a printing device to provide a print material to the printing device that includes a fluidic bag within a box to maintain a print material supply, a machine and human readable fluid gauge system that includes a microprocessor to transfer print material level information describing a level of print material within the bag, and a gauge display to represent the level of print material within the bag, and a near field communication device to transfer data describing a level of print material within the print liquid supply.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: January 25, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Wesley R. Schalk, Howard G. Wong
  • Patent number: 11230120
    Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems including an independent load request is received from a printing device heater system of the printing device heater systems. A power allowance of an amount of a power output is allocated to the printing device heater system if a print substance density is outside a print substance density threshold and the independent load request is outside a load threshold.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 25, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Daniel James Magnusson
  • Patent number: 11231673
    Abstract: In some examples, a controller can generate operational profiles of printing device components by determining an electrical measurement of a component of a printing device, generate an operational profile of the electrical measurement, compare the operational profile against a baseline operational profile the component, and generate an alert based on the comparison.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 25, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Trevor Eric Hendricks, Benjamin Whitney Griffith
  • Patent number: 11231669
    Abstract: Power allocation in printing devices is disclosed. A first load request is received from a first heater system having a first thermal time constant and a second load request is received from a second heater system having a second thermal time constant. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. The power grants include a first power grant based on the first load request and a second power grant based on the second load request. The power grants are adjusted to apportion a measure of the first power grant to the second power grant rather than provide the measure of the first power grant to the first heater system if a print substance density is within a selected print substance density threshold and the first load request is within a selected load threshold.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: January 25, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Daniel James Magnusson
  • Publication number: 20220019274
    Abstract: In some examples, a system identifies a plurality of time periods in which a time period includes a power event and a zero power event. The system tracks a cumulative error value that is adjusted based on elimination of a power event or elimination of a zero power event in the time period. The system determines a value of a first term if a power event in the time period is eliminated, and determines a value of a second term if a zero power event in the time period is eliminated, and based on the cumulative error value, the value of the first term, and the value of the second term, decides between eliminating the power event in the time period and eliminating the zero power event in the time period.
    Type: Application
    Filed: December 14, 2018
    Publication date: January 20, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Robert Yraceburu, Duane A. Koehler, Daniel James Magnusson
  • Patent number: 11198301
    Abstract: A print supply to connect to a printing device to provide a print material to the printing device that includes a machine and human readable print material gauge system, that includes an integrated circuit including a data interface to transfer print material level information describing a level of print material within the print supply and a display to represent the level of print material within the print supply.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: December 14, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Wesley R. Schalk, Howard G. Wong
  • Patent number: 11175721
    Abstract: According to examples, an apparatus may include instructions that may cause the processor to identify, for a first device state, a first set of active components of a device and to determine a first power demand level of the first set of active components for the first device state. The instructions may also cause the processor to determine that the device is to transition from the first device state to a second device state, to determine, for the second device state, a second set of active components of the device having a second power demand level that is within a predefined difference level of the first power demand level, the predefined difference level to smooth power delivery to the device between the first device state and the second device state, and to control application of power to the second set of active components during the second device state.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: November 16, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Francisco Alcazar
  • Patent number: 11157053
    Abstract: An example auxiliary module includes an external power supply interface to couple to an external power source, at least one subsystem to operate using power from the external power source, and a power controller coupled to the external power supply interface. The at least one subsystem is to receive control signals from a primary device. The power controller includes circuitry to provide power from the external power source to the at least one subsystem. The power controller is to further provide power control signals to the primary device.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 26, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Kevin Lo, Benjamin Whitney Griffith
  • Patent number: 11110725
    Abstract: Power allocation in printing devices is disclosed. Independent load requests are received from printing device heater systems. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. A power grant is adjusted based on a contextual printing condition to provide an adjusted grant from the power source to a printing device heater system of the printing device heater systems. The adjusted grant is based on a power grant limit corresponding with the contextual printing condition.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 7, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A Koehler, Robert Yraceburu, Daniel James Magnusson
  • Publication number: 20210270875
    Abstract: Apparatus, systems, articles of manufacture, and methods to provide an adaptive connection of a resistive element and a temperature-dependent resistive element are disclosed. An example apparatus includes a temperature-dependent resistive element. The example apparatus further includes a resistive element. The example apparatus further includes a switch coupled to the temperature-dependent resistive element and the resistive element. The example apparatus further includes a current sensor to measure a current through the temperature-dependent resistive element. The example apparatus further includes a processor to control the switch to, based on the measured current, (A) couple the temperature-dependent resistive element in parallel to the resistive element or (B) couple the temperature-dependent resistive element in series with the resistive element.
    Type: Application
    Filed: November 7, 2018
    Publication date: September 2, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Duane A. Koehler, Robert Yraceburu