-
公开(公告)号：US20170146383A1
公开(公告)日：2017-05-25
申请号：US15423266
申请日：2017-02-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning Ge , Trudy Benjamin , Teck-Khim Neo , Joseph M. Torgerson , Neel Banerjee , George H. Corrigan, III
CPC classification number: B41J2/17566 , B41J2/14153 , B41J2/175 , B41J2002/17579 , G01F23/263
Abstract: 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.
-
公开(公告)号：US20230018474A1
公开(公告)日：2023-01-19
申请号：US17951929
申请日：2022-09-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Michael W. Cumbie , James Michael Gardner , Scott A. Linn , George H. Corrigan, III
Abstract: A print component integrated circuitry package includes a number of temperature sensors where each of the plurality of the temperature sensors is disposed in a corresponding temperature region of an integrated circuitry. In an example, an analog sense bus conductively connects to all of the plurality of temperature sensors and an external sensor pad that is to connect to a corresponding print controller contact.
-
公开(公告)号：US10378946B2
公开(公告)日：2019-08-13
申请号：US15423260
申请日：2017-02-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning Ge , Trudy Benjamin , Teck-Khim Neo , Joseph M. Torgerson , Neel Banerjee , George H. Corrigan, III
Abstract: 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.
-
公开(公告)号：US10022962B1
公开(公告)日：2018-07-17
申请号：US15665560
申请日：2017-08-01
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Scott A. Linn , George H. Corrigan, III , Michael W. Cumbie
Abstract: 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.
-
公开(公告)号：US10082414B2
公开(公告)日：2018-09-25
申请号：US15423266
申请日：2017-02-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning Ge , Trudy Benjamin , Teck-Khim Neo , Joseph M. Torgerson , Neel Banerjee , George H. Corrigan, III
CPC classification number: G01F23/263 , B41J2/14153 , B41J2/175 , B41J2/17566 , B41J2002/17579
Abstract: 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.
-
Patent Agency Ranking
公开(公告)号：US20170144451A1
公开(公告)日：2017-05-25
申请号：US15423260
申请日：2017-02-02
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning Ge , Trudy Benjamin , Teck-Khim Neo , Joseph M. Torgerson , Neel Banerjee , George H. Corrigan, III
CPC classification number: G01F23/263 , B41J2/14153 , B41J2/175 , B41J2/17566 , B41J2002/17579
Abstract: 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.
-
公开(公告)号：US11912024B2
公开(公告)日：2024-02-27
申请号：US17951929
申请日：2022-09-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Michael W. Cumbie , James Michael Gardner , Scott A. Linn , George H. Corrigan, III
CPC classification number: B41J2/04563 , B41J2/04546 , G01K13/026 , B41J2002/14491 , B41J2202/13
Abstract: A print component integrated circuitry package includes a number of temperature sensors where each of the plurality of the temperature sensors is disposed in a corresponding temperature region of an integrated circuitry. In an example, an analog sense bus conductively connects to all of the plurality of temperature sensors and an external sensor pad that is to connect to a corresponding print controller contact.
-
公开(公告)号：US11666910B2
公开(公告)日：2023-06-06
申请号：US17268394
申请日：2018-11-26
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Daryl E. Anderson , George H. Corrigan, III , Alexander Govyadinov
CPC classification number: B01L3/50273 , B01L7/525 , C12Q1/686 , B01L2200/0673 , B01L2300/0645 , B01L2300/1827 , B01L2400/0442
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.
-
公开(公告)号：US20220073964A1
公开(公告)日：2022-03-10
申请号：US17417364
申请日：2019-03-07
Applicant: Hewlett-Packard Development Company, L.P
Inventor： George H. Corrigan, III
IPC: C12Q1/686 , B01L7/00 , B01L3/00 , C12Q1/6806 , G01N27/327
Abstract: The present disclosure relates to nucleic acid detection devices. The nucleic detection device can include a microfluidic architecture to receive biological fluid, a multimodal sensor bundle, a common transmission line to transmit an enhanced current signal generated by combining current signals from individual sensors, and a current to voltage converter to receive and convert the enhanced current signal to voltage. The multimodal sensor bundle can be positioned to interact with the biological fluid when present within the microfluidic architecture. The multimodal sensor bundle can include multiple types of sensors selected from an electrochemical sensor, an optical sensor, or a potentiometric sensor. Individual sensors of the multimodal sensor bundle independently can generate a current signal in response to interaction with the biological fluid.
-
公开(公告)号：US10589522B2
公开(公告)日：2020-03-17
申请号：US15948565
申请日：2018-04-09
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Scott A. Linn , George H. Corrigan, III , Michael W. Cumbie
Abstract: 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.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.061 seconds)
