-
公开(公告)号：US09586410B2
公开(公告)日：2017-03-07
申请号：US14594863
申请日：2015-01-12
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Adam L. Ghozeil , Daryl E. Anderson
CPC classification number: B41J2/0452 , B41J2/0451 , B41J2/0458 , B41J2/04586 , B41J2/14153 , B41J2/175 , B41J2/17506 , B41J2/17566 , B41J2002/14354
Abstract: An inkjet printing system, fluid ejection system and method thereof are disclosed. The fluid ejection system includes a fluid ejection device and a determination module to determine a supply condition based on the count value output by the converter module. The fluid ejection device includes a fluid supply chamber to store fluid, an ejection chamber including a nozzle and a corresponding ejection member to selectively eject the fluid through the nozzle, a pressure sensor unit having a sensor plate to output a voltage value corresponding to a cross-sectional area of an amount of fluid in the ejection chamber. The fluid ejection system also includes a converter module to output a count value corresponding to the voltage value output by the pressure sensor unit.
Abstract translation: 公开了一种喷墨打印系统，流体喷射系统及其方法。 流体喷射系统包括流体喷射装置和确定模块，用于基于由转换器模块输出的计数值来确定供给条件。 流体喷射装置包括用于存储流体的流体供应室，包括喷嘴的喷射室和相应的喷射构件，以选择性地通过喷嘴喷射流体;压力传感器单元，具有传感器板，用于输出对应于十字的电压值 在喷射室中的流体量的检测区域。 流体喷射系统还包括转换器模块，用于输出与由压力传感器单元输出的电压值对应的计数值。
-
公开(公告)号：US11467116B2
公开(公告)日：2022-10-11
申请号：US16766633
申请日：2018-01-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Eric Martin , Daryl E. Anderson , James Michael Gardner , James A. Feinn , Kevin Kaufmann
Abstract: In one example in accordance with the present disclosure, a fluid analysis system is described. The fluid analysis system includes a fluidic die. The fluidic die includes a fluid chamber to hold a volume of fluid to be analyzed and an impedance sensor disposed within the fluid chamber. The impedance sensor measures an impedance of the fluid in the fluid chamber. The fluid analysis system also includes an evaluator device electrically coupled to the impedance sensor. The evaluator device determines at least one property of the fluid based on the impedance.
-
公开(公告)号：US11331909B2
公开(公告)日：2022-05-17
申请号：US17045517
申请日：2018-06-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daryl E. Anderson , Eric T. Martin , James Michael Gardner
IPC: B41J2/045
Abstract: Examples of a fluidic die for thermal zone selection with a circular shift register are described herein. In some examples, the fluidic die includes multiple thermal zones. Each thermal zone includes a temperature sensor and a fluidic actuator. The fluidic die also includes shared thermal control circuitry to process an output of the temperature sensor of a selected thermal zone. The fluidic die further includes a circular shift register that includes multiple memory elements. Each memory element is associated with one thermal zone. A token circulates within the circular shift register to select one thermal zone at a time for processing by the shared thermal control circuitry.
-
公开(公告)号：US11312131B2
公开(公告)日：2022-04-26
申请号：US16603822
申请日：2018-04-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Daryl E. Anderson , Eric T. Martin
IPC: B41J2/145 , B41J2/045 , B33Y30/00 , B33Y50/02 , B29C64/209 , B29C64/393
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.
-
公开(公告)号：US11312129B2
公开(公告)日：2022-04-26
申请号：US17267542
申请日：2018-11-21
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Eric Martin , James R. Przybyla , Daryl E. Anderson
Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes an array of firing subassemblies grouped into zones. Each firing subassembly includes 1) a firing chamber, 2) a fluid actuator, and 3) a sensor plate. The fluidic die also includes a measurement device per zone to measure a voltage indicative of an impedance within a selected firing chamber. The fluidic die includes a selector per firing subassembly to couple a selected sensor plate to the measurement device. A selector is adjacent a respective firing subassembly and a distance between the selector and the measurement device is different as compared to other selectors.
-
Patent Agency Ranking
公开(公告)号：US11260656B2
公开(公告)日：2022-03-01
申请号：US16763246
申请日：2017-12-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： James Michael Gardner , Daryl E. Anderson , Eric Martin
IPC: B41J2/045
Abstract: A fluidic die that includes at least one temperature sensor coupled to at least one zone of the fluidic die, a setpoint register to receive a target temperature setpoint for the fluidic 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.
-
公开(公告)号：US11173712B2
公开(公告)日：2021-11-16
申请号：US16970470
申请日：2018-04-06
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Eric T. Martin , Daryl E. Anderson , James R. Przybyla
Abstract: In some examples, a system includes a device support to receive a fluid dispensing device, and a controller to identify, based on data controlling activation of fluidic actuators, a fluidic actuator that is to be activated in a first activation cycle of a group of activation cycles that correspond to activation intervals of respective fluidic actuators of a group of fluidic actuators of the fluid dispensing device, the identified fluidic actuator being part of the group of fluidic actuators. To perform a sense measurement for the identified fluidic actuator, the controller suppresses activation of the identified fluidic actuator in the first activation cycle, and causes activation of the identified fluidic actuator in a sense measurement cycle different from the first activation cycle, the sense measurement cycle being part of the group of activation cycles.
-
公开(公告)号：US20210347171A1
公开(公告)日：2021-11-11
申请号：US17251982
申请日：2019-01-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daryl E. Anderson , Eric Martin , James R. Przybyla , Chien-Hua Chen
Abstract: One example provides a fluidic die including a semiconductor substrate, and a nozzle layer disposed on the substrate, the nozzle layer having a top surface opposite the substrate and including a nozzle formed therein, the nozzle including a fluid chamber disposed below the top surface and a nozzle orifice extending through the nozzle layer from the top surface to the fluid chamber, the fluid chamber to hold fluid, and the nozzle to eject fluid drops from the fluid chamber via the nozzle orifice. An electrode is disposed in contact with the nozzle layer about a perimeter of the nozzle orifice, the electrode to carry an electrical charge to adjust movement of electrically charged components of the fluid.
-
公开(公告)号：US20210323301A1
公开(公告)日：2021-10-21
申请号：US17251241
申请日：2018-11-16
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Rogelio Cicili , James Michael Gardner , Eric Thomas Martin , Daryl E. Anderson
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.
-
公开(公告)号：US20210107279A1
公开(公告)日：2021-04-15
申请号：US16956045
申请日：2018-03-05
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Daryl E. Anderson , Eric Martin , James Michael Gardner
Abstract: In one example in accordance with the present disclosure, a fluidic die is described is described. The fluidic die includes an array of fluid actuators grouped into zones. Each zone includes a number of fluid actuators and at least one fault detection device. The fault detection device includes a comparator to compare at least one of a representation of a supply voltage and a return voltage supplied to the zone against a voltage threshold. The fault detection device also includes a fault capture device to store an output of the comparator.
-
-
-
-
-
-
-
-
-
Search Results
103
records
(took 0.028 seconds)
