Patents by Inventor Daryl E. Anderson

Daryl E. Anderson 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).

  • Publication number: 20210283904
    Abstract: In some examples, a fluid dispensing device includes a plurality of fluidic actuators and a decoder. The decoder is to detect that an activated sense measurement is to be performed for a first fluidic actuator of the plurality of fluidic actuators in a first time group comprising a plurality of activation intervals for respective fluidic actuators. In response to detecting that the activated sense measurement is to be performed for the first fluidic actuator in the first time group, the decoder activates the first fluidic actuator in the first time group to perform the activated sense measurement for the first fluidic actuator, and suppresses an activation pulse to the first fluidic actuator in a second time group that follows the first time group to perform a reference measurement for the first fluidic actuator in the second time group, the second time group comprising a plurality of activation intervals for respective fluidic actuators.
    Type: Application
    Filed: April 6, 2018
    Publication date: September 16, 2021
    Inventors: Eric T. Martin, Daryl E. Anderson
  • Publication number: 20210283900
    Abstract: In some examples, a fluid dispensing device includes a plurality of fluidic actuators, and a plurality of sense measurement storage elements to store sense measurement indicators for indicating whether sense measurement is to be performed for fluidic actuators of the plurality of fluidic actuators. The fluid dispensing device further includes a controller to control setting of the sense measurement indicators in the sense measurement storage elements to select which fluidic actuator is to be subject to a sense measurement.
    Type: Application
    Filed: April 6, 2018
    Publication date: September 16, 2021
    Inventors: Daryl E. Anderson, Eric T. Martin
  • Patent number: 11117368
    Abstract: A fluidic die may include an array of fluid actuators, an actuation data register to store actuation data that indicates each fluid actuator to actuate for a set of actuation events, a mask register to store mask data that indicates a set of fluid actuators of the array enabled for actuation for a respective actuation event of the set of actuation events, a pattern select register to store a pattern selection, input mask data generation circuitry to build a set of mask data with subsets of mask data, each of the subsets having a pattern based upon a pattern selection input, and to populate the mask register with the set of mask data, and actuation logic to electrically actuate a subset of the fluid actuators based at least in part on the actuation data register and the mask register for the respective actuation event.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: September 14, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin
  • 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
  • Publication number: 20210276324
    Abstract: In some examples, a fluidic die includes a set of fluid actuators arranged in an order, and a controller to determine, based on input control information relating to controlling actuation of the plurality of fluid actuators, whether a first fluid actuator of the plurality of fluid actuators is to be actuated and whether a second fluid actuator within a specified proximity of the first fluid actuator in the order is to be actuated, and in response to determining that the first fluid actuator is to be actuated and the second fluid actuator within the specified proximity of the first fluid actuator in the order is not to be actuated, activate a delay element associated with the first fluid actuator, the delay element to delay an activation signal propagated to selected fluid actuators of the set of fluid actuators in response to an actuation event.
    Type: Application
    Filed: April 14, 2017
    Publication date: September 9, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Eric Martin, Daryl E Anderson
  • Publication number: 20210276331
    Abstract: One example of a fluid ejection system includes a plurality of fluid ejection devices, a corresponding plurality of indicators, an operator interface, and a controller. Each indicator is on a corresponding fluid ejection device. The operator interface is to select a fluid ejection device. The controller is to turn on the corresponding indicator for the selected fluid ejection device.
    Type: Application
    Filed: July 11, 2017
    Publication date: September 9, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E Anderson, James R Przybyla
  • Patent number: 11090930
    Abstract: A fluidic die may include an array of fluid actuators comprising a first set of fluid actuators and a second set of fluid actuators. The fluidic die may further include a first power line connected to the first set of fluid actuators, a second power line connected to the second set of fluid actuators and a third power line connected to the first set of fluid actuators.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 17, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, James M Gardner, Eric Martin
  • 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
  • Patent number: 11090924
    Abstract: A fluidic die includes an array of nozzles, each nozzle to eject a fluid drop in response to a corresponding actuation signal having an actuation value. The fluidic dies includes nozzle select logic to provide, for each nozzle, a nozzle select signal having a select value or a non-select value, with a select value indicating the nozzle is select to eject a fluid drop, a nozzle displacement register to receive displacement bits, each displacement bit corresponding to a different one of the nozzles and having an enable value or a disable value, a disable value indicating a defective nozzle, and actuation logic, for each nozzle having a corresponding nozzle select signal having a select value, the actuation logic to provide an actuation signal having an actuation value to an operational neighboring nozzle instead of to the selected nozzle when the corresponding displacement bit has a disable value.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 17, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin
  • Patent number: 11084282
    Abstract: A fluid ejection die includes a plurality of actuation devices to eject fluid drops, at least one strain gauge sensor to sense strain, and a comparator. The comparator is to provide a fault signal in response to the sensed strain exceeding an impact threshold.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: August 10, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, James Gardner
  • 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
  • Publication number: 20210237058
    Abstract: A microfluidic device may include an impedance sensor located within a fluidic priming orifice within a fluidic channel of the microfluidic device, and control logic. The control logic is to force a current into the impedance sensor to sense the presence of a fluid within the fluidic channel at the locations of the impedance sensor, and determine if the fluid is primed into the fluidic channel based on the impedance values sensed by the impedance sensor.
    Type: Application
    Filed: August 9, 2018
    Publication date: August 5, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: James Michael Gardner, Daryl E. Anderson, Eric Martin, Alexander Govyadinov
  • Patent number: 11052656
    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes an array of fluid actuators grouped into primitives. The fluidic die also includes a fluid actuator controller to selectively activate fluid actuators via activation data. The fluidic die also includes an array of actuator evaluators, wherein each actuator evaluator of the fluidic die is coupled to a subset of the array of fluid actuators. The actuator evaluators selectively evaluate an actuator characteristic of a selected fluid actuator based on: an output of an actuator sensor paired with the selected fluid actuator, the activation data, and an evaluation control signal.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 6, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner
  • Patent number: 11046071
    Abstract: In one example in accordance with the present disclosure, a fluid ejection die is described. The die includes a number of actuator sensors disposed on the fluid ejection die to sense a characteristic of a corresponding actuator. Each actuator sensor is coupled to a respective actuator and multiple coupled actuator sensors and actuators are grouped as primitives on the fluid ejection die. The die also includes an actuator evaluation die per primitive to evaluate an actuator characteristic of any actuator within the primitive. The die also includes a number of disable devices. Each disable device 1) is coupled to a respective actuator of the number of actuators and 2) disables a corresponding actuator when the corresponding actuator is determined to be malfunctioning.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: June 29, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric Martin, Daryl E Anderson, James Michael Gardner
  • Patent number: 11040545
    Abstract: In one example a fluid level sensing device is described. The device includes a sensing die having a number of fluid level sensors disposed thereon and a number of control devices, each control device corresponding to one of the number of fluid level sensors. A control device includes a comparing device to determine a state of a corresponding fluid level sensor. A state of the fluid level sensor is selected from the group consisting of a fluid state and a no fluid state. Each control device also includes a non-volatile memory device corresponding to the comparing device to indicate whether the corresponding fluid level sensor is at the fluid state or the no fluid state. A control device also includes a locking device to receive a write command and to irreversibly set the non-volatile memory device to the no fluid state based on the write command.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: June 22, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, James Michael Gardner
  • Patent number: 11040530
    Abstract: In one example in accordance with the present disclosure, a fluidic system is described. The fluidic system includes a fluidic die. The fluidic die includes a substrate in which a number of fluid chambers are formed. Each fluid chamber includes a fluid actuator disposed within the fluid chamber. A number of actuator sensors are disposed on the substrate to output at least one value indicative of a sensed characteristic of fluid actuators. A number of substrate temperature sensors are also disposed on the substrate to sense a temperature for the substrate. An actuator evaluation device of the fluidic system determines a state of the fluid actuator based at least in part on the at least one value and at least one correction value associated with the temperature sensed by the number of substrate temperature sensors.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 22, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, James A. Feinn, Eric Martin, James Michael Gardner
  • Patent number: 11040546
    Abstract: In one example a fluid level sensing device is described. The device includes a sensing die having a number of fluid level sensors disposed thereon and a number of control devices, each control device corresponding to one of the number of fluid level sensors. A control device includes a comparing device to determine a state of a corresponding fluid level sensor. A state of the fluid level sensor is selected from the group consisting of a fluid state and a no-fluid state. Each control device also includes a non-volatile memory device corresponding to the comparing device to indicate whether the corresponding fluid level sensor is at the fluid state or the no-fluid state. A control device also includes a locking device to irreversibly set the non-volatile memory device to the no-fluid state independent of a write command from a controller.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: June 22, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, James Michael Gardner
  • Publication number: 20210178385
    Abstract: In one example in accordance with the present disclosure, a microfluidic device is described. The microfluidic device includes a reservoir to contain a first thermally expandable fluid, a first heater to heat the thermally expandable fluid in the reservoir, a channel extending from the reservoir and connected to the reservoir at a first opening, and a liquid volume obstructing the channel.
    Type: Application
    Filed: November 26, 2018
    Publication date: June 17, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E. Anderson, George H. Corrigan III, Alexander Govyadinov
  • Publication number: 20210178756
    Abstract: A fluidic die may include at least two zones, a reference temperature sensor communicatively coupled to each zone, a calibration voltage generator coupled between the zones and the reference temperature sensor, and a calibration loop circuit associated with each zone to calibrate each zone based on a voltage provided by the reference temperature sensor.
    Type: Application
    Filed: November 22, 2017
    Publication date: June 17, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Eric Martin, James Michael Gardner
  • Patent number: 11037036
    Abstract: Examples include a fluidic die. The fluidic die may comprise an array of fluid actuators, an actuation data register, a mask register, and actuation logic. The actuation data register may store actuation data that indicates fluid ejectors to actuate for a set of actuation events. The mask register may store mask data that indicates a set of fluid actuators enabled for actuation for a respective actuation event of the set of actuation events. The actuation logic may electrically actuate a subset of the fluid actuators based at least in part on the actuation data register and the mask register for the respective actuation event.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: June 15, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E. Anderson, Eric T. Martin, James R. Przybyla