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).

  • FLUID RESERVOIRS
    Publication number: 20200346467
    Abstract: A fluid reservoir may include a fluid chamber to contain a fluid, and an impedance sensor exposed to a fluid within the fluid chamber. The impedance sensor senses an impedance at the impedance sensor, determines a particle vehicle separation level of the fluid within the fluid chamber based on the sensed impedance, and sends an activation signal to a moveable carriage to which the fluid reservoir is coupled to stir the fluid within the fluid reservoir based on the sensed impedance.
    Type: Application
    Filed: December 11, 2017
    Publication date: November 5, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E. ANDERSON, Steven T. CASTLE, Andrew KOLL
  • STORING MEASUREMENTS OF NOZZLE CONDITIONS
    Publication number: 20200348155
    Abstract: In some examples, a fluid dispensing device includes storage elements, and a switch assembly comprising switches controllable by control signals responsive to a given fire event that activates a nozzle of the fluid dispensing device to provide a first sense measurement of a first condition of the nozzle to a first storage element of the storage elements, and provide a second sense measurement of a different second condition of the nozzle to a second storage element of the storage elements.
    Type: Application
    Filed: January 17, 2018
    Publication date: November 5, 2020
    Inventors: Daryl E. Anderson, Eric Martin
  • Fluid ejection device with nozzle column data groups including drive bubble detect data
    Patent number: 10821735
    Abstract: A fluid ejection device including a plurality of primitives each having a same set of addresses and including a plurality of fluid chambers, each fluid chamber corresponding to a different address of the set of addresses and including a firing mechanism. Input logic receives a series of fire pulse groups, each fire pulse group corresponding to an address of the set of addresses and including warming data having an enable value or a disable value and a series of firing bits, each firing bit corresponding to a different primitive and having a firing value or a non-firing value. For each firing bit of each fire pulse group, when the warming data has the enable value, activation logic provides a warming pulse to the firing mechanism of the fluid chamber corresponding to the firing bit when the firing bit has the non-firing value.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: November 3, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Gardner
  • ON-DIE ACTUATOR DISABLING
    Publication number: 20200338883
    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: Application
    Filed: April 5, 2017
    Publication date: October 29, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Eric Martin, Daryl E Anderson, James Michael Gardner
  • Fluid ejection device and particle detector
    Patent number: 10807373
    Abstract: In one example in accordance with the present disclosure, a fluid ejection device is described. The fluid ejection device includes a number of nozzles to eject fluid. Each nozzle includes a firing chamber to hold fluid, a nozzle orifice through which to dispense fluid, and an ejector disposed in the firing chamber to eject fluid through the nozzle orifice. The fluid ejection device also includes a particle detector to detect the presence of foreign particles within the fluid in the firing chamber.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 20, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Steven J Simske, Daryl E Anderson, James Michael Gardner, Eric Martin
  • Fluid ejection die including signal control logic
    Patent number: 10807360
    Abstract: Examples include a fluid ejection die. Examples comprise an array of nozzles, where each respective nozzle includes a respective fluid ejector. Examples further include at least one die sensor. Furthermore, the examples include signal control logic to suppress transmission of a first set of signals for the fluid ejection die during sensing of die characteristics with the at least one die sensor.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: October 20, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Gardner
  • FLUID LEVEL SENSING INDEPENDENT OF WRITE COMMAND
    Publication number: 20200324554
    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: Application
    Filed: July 14, 2016
    Publication date: October 15, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E. Anderson, James Michael Gardner
  • Low voltage bias of nozzle sensors
    Patent number: 10800167
    Abstract: Example implementations relate to low voltage bias of nozzle sensors. For example, a fluid ejection die according to the present disclosure may include a plurality of nozzles, and each nozzle may include a nozzle sensor and a fluid ejector, among other components. The fluid ejection die may also include a voltage reduction device to maintain a low voltage bias on the plurality of nozzle sensors during an operation of the plurality of nozzles. A plurality of sense circuits may be electrically coupled to a respective nozzle sensor among the plurality of nozzle sensors, and each sense circuit may evaluate a status of the respective nozzle after the operation.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: October 13, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner
  • On-die actuator failure detection
    Patent number: 10800166
    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 and to alter an evaluation voltage based on a performance of the corresponding actuator. The die also includes an actuator evaluation device per primitive to detect a failed actuator based at least in part on a comparison of the altered evaluation voltage and at least one threshold voltage. The die also includes a number of disable device coupled to respective actuators and to disable failed actuators.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 13, 2020
    Assignee: Hewlett-Packard Development Comany, L.P.
    Inventors: James Michael Gardner, Daryl E Anderson, Eric Martin
  • SETPOINT REGISTERS TO ADJUST FIRING PULSES
    Publication number: 20200316937
    Abstract: A fluidic die that includes at least one temperature sensor coupled to at least one zone of the fiuidic die, a setpoint register to receive a target temperature setpoint for the fiuidic die wherein a detected temperature presented by the at least one temperature sensor is compared to the target temperature setpoint using a comparator module to get a firing pulse adjustment value, and a firing pulse used to convey an amount of fluid within the die is adjusted using the firing pulse adjustment value.
    Type: Application
    Filed: December 15, 2017
    Publication date: October 8, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: James Michael Gardner, Daryl E. Anderson, Eric Martin
  • PRINTING AGENT CONTAINERS
    Publication number: 20200307233
    Abstract: It is disclosed a printing agent container having ink an authenticity detection mechanisms comprising: a receptacle having a top wall a bottom wall opposing such top wall and a sidewall between such top wall and such bottom wall; an internal volume defined by such receptacle that contains a printing agent, and a vibration transducer on one of the side walls, wherein the container is to be mechanically coupled to a carriage so that the printing fluid is disposed on the bottom surface, being the vibration transducer to detect a vibration signal induced by the carriage and wherein the container comprises a communication channel to a controller being the controller to receive through the communication channel a container signature from the vibration transducer and to identify a container identification signal associated to the container signature.
    Type: Application
    Filed: October 18, 2017
    Publication date: October 1, 2020
    Inventors: Daryl E. Anderson, James Michael Gardner
  • On-die time-shifted actuator evaluation
    Patent number: 10786987
    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 and to output a first voltage corresponding to the sensed characteristic c. 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 Based on the first voltage and a threshold voltage. The die also includes a time-shift chain component to communicate a delayed evaluation signal, which delayed evaluation signal delays an evaluation of the actuator characteristic a predetermined amount of time following an activation event.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: September 29, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daryl E Anderson, Eric Martin
  • FLUID RESERVOIR IMPEDANCE SENSORS
    Publication number: 20200298584
    Abstract: A fluid reservoir (100) includes a circuit (105) extending in the fluid reservoir to be at least partially in contact with fluid (120) inside the fluid reservoir during use, at least a first impedance sensor (110) and second impedance sensor (115) coupled to the circuit, wherein the at least first and second impedance sensors are to output impedance values indicative of a degree of particle separation in the fluid.
    Type: Application
    Filed: December 11, 2017
    Publication date: September 24, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Steven T Castle, Daryl E Anderson, James Michael Gardner, Eric Martin
  • FLUID PARTICLE CONCENTRATION DETECTION
    Publication number: 20200298559
    Abstract: A fluidic die may include at least one fluidic passageway, at least one electrode disposed within the at least one fluidic passageway, and control circuitry to activate the electrode within the fluidic die. An impedance sensed at the electrode corresponds to a particle concentration within the fluid. The control circuitry activates the electrode during a separate pulse group assigned to the activation of the electrode among at least one other pulse group assigned to an activation of at least one fluid actuator within a column group.
    Type: Application
    Filed: December 11, 2017
    Publication date: September 24, 2020
    Applicant: Hewlett-Packanrd Development Company, L.P.
    Inventors: Eric Martin, Daryl E. Anderson
  • Printing device
    Patent number: 10759163
    Abstract: A method of operating a printing device during a power loss event includes, with a power loss protection supply voltage generator coupled to a printhead driving circuit, maintaining a power loss protection supply voltage (VDD_plp) to the printhead driving circuit until a high voltage power supply (VPP) to the high voltage devices drops below a threshold voltage.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: September 1, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Eric T Martin, Daryl E Anderson, James Gardner
  • FLUID ACTUATOR REGISTERS
    Publication number: 20200234092
    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: Application
    Filed: April 14, 2017
    Publication date: July 23, 2020
    Inventors: Daryl E. Anderson, Eric T. Martin, James R. Przybyla
  • FLUIDIC DIE WITH PRIMITIVE SIZE GREATER THAN OR EQUAL TO EVALUATOR SUBSET
    Publication number: 20200198323
    Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The die includes an array of fluid actuators grouped into primitives. The 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. A fluid actuator controller groups multiple fluid actuators of the array of fluid actuators into primitives. A primitive size is greater than or equal to a lower limit threshold and the subset of the array of fluid actuators coupled to the actuator evaluation device is less than or equal to the lower limit threshold.
    Type: Application
    Filed: July 11, 2017
    Publication date: June 25, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner
  • ON-DIE ACTUATOR FAILURE DETECTION
    Publication number: 20200189265
    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 and to alter an evaluation voltage based on a performance of the corresponding actuator. The die also includes an actuator evaluation device per primitive to detect a failed actuator based at least in part on a comparison of the altered evaluation voltage and at least one threshold voltage. The die also includes a number of disable device coupled to respective actuators and to disable failed actuators.
    Type: Application
    Filed: April 5, 2017
    Publication date: June 18, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: James Michael Gardner, Daryl E Anderson, Eric Martin
  • FLUID ACTUATOR EVALUATION INDEPENDENT OF ACTUATION STATE
    Publication number: 20200180305
    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: Application
    Filed: July 11, 2017
    Publication date: June 11, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner
  • ON-DIE ACTUATOR EVALUATION WITH PRE-CHARGED THRESHOLDS
    Publication number: 20200180304
    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 and to output a first voltage corresponding to the sensed characteristic. 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 a pre-charge device per primitive to pre-charge a corresponding threshold voltage storage device to a threshold voltage. The die also includes an actuator evaluation die per primitive to evaluate an actuator characteristic of any actuator within the primitive. Based on the first voltage and a pre-charged threshold voltage.
    Type: Application
    Filed: April 5, 2017
    Publication date: June 11, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Daryl E Anderson, Eric Martin, James Michael Gardner