Patents by Inventor George H Corrigan
George H Corrigan 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).
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Publication number: 20190210025Abstract: According to an example, a microfluidic apparatus may include a fluid slot and a foyer that is in fluid communication with the fluid slot via a channel having a relatively smaller width than the foyer. The microfluidic apparatus may also include an electrical sensor to measure a change in an electrical field caused by a particle of interest in a fluid passing through the channel from the fluid slot to the foyer, an actuator to apply pressure onto fluid contained in the foyer, and a controller to receive the measured change in the electrical field from the electrical sensor, determine, from the received change in the electrical field, an electrical signature of the particle of interest, and control the actuator to control movement of the particle of interest based upon the determined electrical signature of the particle of interest.Type: ApplicationFiled: July 26, 2016Publication date: July 11, 2019Inventors: Chantelle DOMINGUE, Tod WOODFORD, Manish GIRI, Matthew David SMITH, George H CORRIGAN III, Masoud ZAVAREHI, Joshua M. YU
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Patent number: 10232610Abstract: A fluidic die includes a number of sensors to measure properties of a number of property control elements associated with the printhead die, a pass gate to communicate a number of signals to an application specific integrated circuit (ASIC) via an analog bus using control logic associated with the pass gate, and a bi-directional configuration bus coupled to the fluidic die to transmit a number of control signals to property control elements located on the fluidic die.Type: GrantFiled: August 28, 2017Date of Patent: March 19, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daryl E. Anderson, George H. Corrigan, Scott A. Linn
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Publication number: 20190016127Abstract: A fluidic die may include a number of actuators. The number of actuators form a number of primitives. The fluidic die may include a digital-to-analog converter (DAC) to drive a number of the delay circuits. The delay circuits delay a number of activation pulses that activate the actuators associated with the primitives to reduce peak power demands of the fluidic die. A number of delay circuits may be coupled to each primitive.Type: ApplicationFiled: April 9, 2018Publication date: January 17, 2019Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Scott A. Linn, George H. Corrigan III, Michael W. Cumbie
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Patent number: 10124579Abstract: An inkjet printhead including a plurality of printhead dies, each printhead die including at least one crack sense resistor, at least one analog bus connected to each printhead die, and a controller separate from the plurality of printhead dies. The controller is configured to provide a known current to the at least one crack sense resistor of each printhead die in a selectable pattern via the at least one analog bus and to determine whether the printhead dies are cracked based on resulting voltages produced on the at least one analog bus.Type: GrantFiled: January 30, 2015Date of Patent: November 13, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daryl E Anderson, George H Corrigan, Scott A Linn
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Patent number: 10082414Abstract: In some examples, an ink level sensor includes a sense capacitor between a first node and ground, a first switch to couple a first voltage to the first node and charge the sense capacitor, a second switch to couple the first node with a second node and share the charge between the sense capacitor and a reference capacitor, causing a second voltage at the second node, and a transistor having a drain, a gate coupled to the second node, and a source coupled to ground, the transistor to provide a drain to source resistance in proportion to the second voltage.Type: GrantFiled: February 2, 2017Date of Patent: September 25, 2018Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning Ge, Trudy Benjamin, Teck-Khim Neo, Joseph M. Torgerson, Neel Banerjee, George H. Corrigan, III
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Publication number: 20180221870Abstract: An apparatus includes a microfluidic passage, a chamber, an inlet connecting the microfluidic passage to the chamber, a sensor proximate the inlet to sense fluid within the inlet, a first nozzle, a first fluid driver to move fluid through the first nozzle to draw fluid across the inlet, a second nozzle, a second fluid driver to move fluid through the second nozzle to draw fluid across the inlet and a controller. The controller sequentially actuates the first fluid driver and the second fluid driver.Type: ApplicationFiled: January 22, 2016Publication date: August 9, 2018Applicant: Hewlett-Packard Development Company, L.P.Inventors: Chantelle E. DOMINGUE, Manish GIRI, Matthew David SMITH, Joshua M. YU, Jeremy SELLS, George H. CORRIGAN
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Patent number: 10040281Abstract: A wide array printhead module includes a plurality of printhead die. Each of the printhead die includes a number of sensors to measure properties of a number of elements associated with the printhead die. The wide array printhead module further includes an application specific integrated circuit (ASIC) to command and control each of the printhead die. The ASIC is located off any of the printhead die.Type: GrantFiled: October 29, 2014Date of Patent: August 7, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daryl E Anderson, George H Corrigan, Scott A Linn
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Patent number: 10022962Abstract: A fluidic die may include a number of actuators. The number of actuators form a number of primitives. The fluidic die may include a digital-to-analog converter (DAC) to drive a number of the delay circuits. The delay circuits delay a number of activation pulses that activate the actuators associated with the primitives to reduce peak power demands of the fluidic die. A number of delay circuits may be coupled to each primitive.Type: GrantFiled: August 1, 2017Date of Patent: July 17, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Scott A. Linn, George H. Corrigan, III, Michael W. Cumbie
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Patent number: 9969157Abstract: A fluidic die may include a number of actuators. The number of actuators form a number of primitives. The fluidic die may include a digital-to-analog converter (DAC) to drive a number of the delay circuits. The delay circuits delay a number of activation pulses that activate the actuators associated with the primitives to reduce peak power demands of the fluidic die. A number of delay circuits may be coupled to each primitive.Type: GrantFiled: August 1, 2017Date of Patent: May 15, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Scott A. Linn, George H. Corrigan, III, Michael W. Cumbie
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Publication number: 20180001618Abstract: An inkjet printhead including a plurality of printhead dies, each printhead die including at least one crack sense resistor, at least one analog bus connected to each printhead die, and a controller separate from the plurality of printhead dies. The controller is configured to provide a known current to the at least one crack sense resistor of each printhead die in a selectable pattern via the at least one analog bus and to determine whether the printhead dies are cracked based on resulting voltages produced on the at least one analog bus.Type: ApplicationFiled: January 30, 2015Publication date: January 4, 2018Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Daryl E Anderson, George H Corrigan, Scott A Linn
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Publication number: 20170355188Abstract: A fluidic die includes a number of sensors to measure properties of a number of property control elements associated with the printhead die, a pass gate to communicate a number of signals to an application specific integrated circuit (ASIC) via an analog bus using control logic associated with the pass gate, and a bi-directional configuration bus coupled to the fluidic die to transmit a number of control signals to property control elements located on the fluidic die.Type: ApplicationFiled: August 28, 2017Publication date: December 14, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Daryl E. Anderson, George H. Corrigan, Scott A. Linn
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Publication number: 20170355185Abstract: One example provides a printhead including a plurality of printhead dies, each printhead die including at least one crack sense resistor. At least one analog bus is connected to each printhead die, the at least one analog bus to output voltages to facilitate a printer controller to determine whether at least one of the printhead dies is cracked.Type: ApplicationFiled: August 28, 2017Publication date: December 14, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Darryl E. Anderson, George H. Corrigan, Scott A. Linn
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Publication number: 20170232734Abstract: A wide array printhead module includes a plurality of printhead die. Each of the printhead die includes a number of sensors to measure properties of a number of elements associated with the printhead die. The wide array printhead module further includes an application specific integrated circuit (ASIC) to command and control each of the printhead die. The ASIC is located off any of the printhead die.Type: ApplicationFiled: October 29, 2014Publication date: August 17, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Daryl E Anderson, George H Corrigan, Scott A Linn
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Publication number: 20170146383Abstract: In some examples, an ink level sensor includes a sense capacitor between a first node and ground, a first switch to couple a first voltage to the first node and charge the sense capacitor, a second switch to couple the first node with a second node and share the charge between the sense capacitor and a reference capacitor, causing a second voltage at the second node, and a transistor having a drain, a gate coupled to the second node, and a source coupled to ground, the transistor to provide a drain to source resistance in proportion to the second voltage.Type: ApplicationFiled: February 2, 2017Publication date: May 25, 2017Inventors: Ning Ge, Trudy Benjamin, Teck-Khim Neo, Joseph M. Torgerson, Neel Banerjee, George H. Corrigan, III
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Publication number: 20170144451Abstract: In some examples, a method of sensing an ink level includes applying a pre-charge voltage to a sense capacitor to charge the sense capacitor with a charge, sharing the charge between the sense capacitor and a reference capacitor, causing a reference voltage at a gate of an evaluation transistor, and determining a resistance from a drain to a source of the evaluation transistor that results from the reference voltage.Type: ApplicationFiled: February 2, 2017Publication date: May 25, 2017Inventors: Ning Ge, Trudy Benjamin, Teck-Khim Neo, Joseph M. Torgerson, Neel Banerjee, George H. Corrigan, III
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Patent number: 9599500Abstract: In an embodiment, a method of sensing an ink level includes applying a pre-charge voltage Vp to a sense capacitor to charge the sense capacitor with a charge Q1, sharing Q1 between the sense capacitor and a reference capacitor, causing a reference voltage Vg at the gate of an evaluation transistor, and determining a resistance from drain to source of the evaluation transistor that results from Vg.Type: GrantFiled: June 27, 2011Date of Patent: March 21, 2017Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Ning Ge, Trudy Benjamin, Teck-Khim Neo, Joseph M. Torgerson, Neel Banerjee, George H. Corrigan, III
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Publication number: 20140204148Abstract: In an embodiment, a method of sensing an ink level includes applying a pre-charge voltage Vp to a sense capacitor to charge the sense capacitor with a charge Q1, sharing Q1 between the sense capacitor and a reference capacitor, causing a reference voltage Vg at the gate of an evaluation transistor, and determining a resistance from drain to source of the evaluation transistor that results from Vg.Type: ApplicationFiled: June 27, 2011Publication date: July 24, 2014Inventors: Ning Ge, Trudy Benjamin, Teck-Khim Neo, Joseph M. Torgerson, Neel Banerjee, George H. Corrigan, III
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Publication number: 20140169252Abstract: Sensor node location-based power consumption optimization employs an adjustable minimum detectable signal (MDS) level that is set based on a location of a sensor node relative to a location of a source of an event signal. The sensor node includes a sensor to respond to the event signal and an interface module to determine the sensor response to the event signal. The interface module has the adjustable MDS level and a power consumption that is a function of the adjustable MDS level. The adjustable MDS level is set to optimize power consumption.Type: ApplicationFiled: July 29, 2011Publication date: June 19, 2014Inventors: Neel Banerjee, George H. Corrigan, Andrew L. Van Brocklin, Anton N. Clarkson, David A. Champion
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Patent number: 7486305Abstract: A pixel cell is instructed to relay activation instructions to another pixel cell. The first pixel cell is instructed to activate. The activation instruction is relayed to the second pixel cell. The pixel cells are both activated.Type: GrantFiled: April 5, 2004Date of Patent: February 3, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Andrew Koll, Daryl E. Anderson, George H Corrigan, III
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Patent number: 7298368Abstract: An embodiment of the invention is a display device including a plurality of pixels. The pixels in the display include an optical part. There is a digital-to-analog converter for driving the optical part. The digital to analog converter is physically co-located the optical part. Driving circuitry provides digital signals simultaneously to digital-to-analog converters for the plurality of pixels.Type: GrantFiled: March 17, 2004Date of Patent: November 20, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daryl E. Anderson, George H Corrigan, III