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1. 发明申请

WO2019147226A1 TEMPERATURE-BASED ACTUATOR EVALUATION 审中-公开
公开(公告)号：WO2019147226A1
公开(公告)日：2019-08-01
申请号：PCT/US2018/014953
申请日：2018-01-24
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： ANDERSON, Daryl, E. , FEINN, James, A. , MARTIN, Eric , GARDNER, James, Michael
IPC分类号： B41J2/175 , B41J29/393
摘要： 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.

2. 发明申请

WO2017189011A1 DETECTING FLUID LEVELS USING A VARIABLE THRESHOLD VOLTAGE 审中-公开
标题翻译：使用可变门限电压检测流体液位
公开(公告)号：WO2017189011A1
公开(公告)日：2017-11-02
申请号：PCT/US2016/030255
申请日：2016-04-29
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： ANDERSON, Daryl, E. , CUMBIE, Michael, W. , GARDNER, James, Michael , FISHER, Berkeley
IPC分类号： B41J2/17 , B41J2/175 , B41J2/01 , B41J29/393
摘要： An example printing cartridge includes a sensing die including a plurality of sensing locations in thermal contact with a fluid container, an on-die controller to select a sensing location of the plurality of sensing locations to activate and to provide a variable threshold voltage, and a voltage comparator to compare a sensed voltage generated at a selected sensing location to the variable threshold voltage, and output time-based information based on the comparison, the time-based information representative of whether a fluid is present at a fluid level associated with the selected sensing location.
摘要翻译：示例性打印盒包括：感测管芯，包括与流体容器热接触的多个感测位置;片上控制器，选择多个感测位置中的感测位置以激活;以及提供可变阈值电压，以及电压比较器，用于将在选定感测位置处产生的感测电压与可变阈值电压进行比较，并基于比较结果输出基于时间的信息，所述基于时间的信息表示是否存在流体处于与所选感测位置相关的液体水平。

3. 发明申请

WO2022086539A1 LOGIC CIRCUITRY 审中-公开
公开(公告)号：WO2022086539A1
公开(公告)日：2022-04-28
申请号：PCT/US2020/056852
申请日：2020-10-22
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： GARDNER, James, Michael , LINN, Scott, A. , CUMBIE, Michael, W. , NG, Boon, Bing , ROSSI, John
IPC分类号： B41J2/045 , B41J2/175 , G06F13/42
摘要： A circuitry component may comprise first logic configured to, in response to instructions and/or signals sent over the common interface, enable second logic. Control logic of second logic may be configured to enable or disable data communications between the first logic and a host device logic circuit

4. 发明申请

WO2021080596A1 LOGIC CIRCUITRY PACKAGE 审中-公开
公开(公告)号：WO2021080596A1
公开(公告)日：2021-04-29
申请号：PCT/US2019/058004
申请日：2019-10-25
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： GARDNER, James, Michael , LINN, Scott, A.
IPC分类号： B41J2/175 , G05B19/00
摘要： A logic circuitry package for a replaceable print apparatus component includes an analog sensor cell block with a plurality of sensor cells, analog control circuitry to bias and control the analog sensor cell block, an interface to communicate with a print apparatus logic circuit, a dedicated bit field that indicates whether the logic circuitry package is in a power saving mode, and at least one logic circuit. The at least one logic circuit may be configured to receive, via the interface, a request to cause the analog sensor cell block to provide sensor information for at least one sensor measurement; and selectively enable and disable power to the analog control circuitry based on the request and a value of the dedicated bit field.

5. 发明申请

WO2019199316A1 FLUIDIC DIE PURGING 审中-公开
公开(公告)号：WO2019199316A1
公开(公告)日：2019-10-17
申请号：PCT/US2018/027354
申请日：2018-04-12
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： ANDERSON, Daryl, E. , MARTIN, Eric , GARDNER, James, Michael , ESTERRI PEDRA, Pere
IPC分类号： B41J2/215
摘要： A fluidic die may include a fluidic channel, and an electrode disposed within a fluidic channel of the fluidic die to determine if a difference between an initially-measured impedance and a subsequently-measured impedance as measured by the electrode indicates a completion of a purging of an initial fluid from the fluidic die and a replacement with a second fluid.

6. 发明申请

WO2020204950A1 FLUID PROPERTY SENSOR 审中-公开
公开(公告)号：WO2020204950A1
公开(公告)日：2020-10-08
申请号：PCT/US2019/026149
申请日：2019-04-05
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： STUDER, Anthony, D. , OLSEN, David, N. , CUMBIE, Michael, W. , CHEN, Chien-Hua , GARDNER, James, Michael , LINN, Scott, A.
IPC分类号： G01F23/24 , G01F23/26 , B41J2/195 , G01L1/20 , G01L1/22 , G01F23/00 , B41J2/125 , B41J2/175 , G01N5/00 , G01N9/00
摘要： A fluid property sensor may comprising an integrated circuit (IC) including a fluid level sensor, and/or a pressure sensor; and an external interface electrically coupled to a proximal end of the EC, wherein the pressure sensor may be configured to measure a flexure of the fluid property sensor.

7. 发明申请

WO2020204945A1 PRINT MATERIAL LEVEL SENSING 审中-公开
公开(公告)号：WO2020204945A1
公开(公告)日：2020-10-08
申请号：PCT/US2019/026105
申请日：2019-04-05
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： DAGG, Evan, Clay , ANDERSON, Daryl, E. , GARDNER, James, Michael
IPC分类号： B41J2/175 , G01F23/24
摘要： A print material level sensor comprises a series of print material level sensing devices disposed at intervals to detect presence of a print material at successive depth zones in a container, wherein each print material level sensing device includes a heater to emit heat at its depth zone and a sensor to sense heat at the depth zone and to output a signal based on the heat sensed. The sensor has control circuitry to, for each print material level sensing device to be calibrated, turn on the heater for an initial time duration set by an initial heat count and iteratively adjust the time duration for which the heater is turned on in accordance with an adjusted heat count, until the signal output from the sensor indicates that a target value has been reached in that depth zone.

8. 发明申请

WO2018080539A1 FLUID EJECTION DEVICE COMBINING DRIVE BUBBLE DETECT AND THERMAL RESPONSE 审中-公开
标题翻译：流体喷射装置结合驱动泡检测和热响应
公开(公告)号：WO2018080539A1
公开(公告)日：2018-05-03
申请号：PCT/US2016/059702
申请日：2016-10-31
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： ANDERSON, Daryl, E. , MARTIN, Eric , GARDNER, James, Michael
IPC分类号： B41J2/04 , B41J2/07
摘要： A fluid ejection device with a fluid chamber including a vaporization chamber and a thermal drive bubble formation mechanism to vaporize a portion of a fluid in the vaporization chamber to form a drive bubble in response to a firing signal during a firing operation. A drive bubble detect sensor separate from the thermal drive bubble formation mechanism and in contact with fluid in the vaporization chamber, the drive bubble detect sensor to inject a fixed current through the vaporization chamber to generate a first voltage signal representing a voltage response of the vaporization chamber and indicative of drive bubble formation during the firing operation. A thermal sensor to generate a second voltage signal indicative of a thermal response of the vaporization chamber during the firing operation, the first and second voltage signals combined being representative of an operating condition of the fluid chamber.
摘要翻译：具有流体腔室的流体喷射装置，所述流体腔室包括蒸发腔室和热驱动气泡形成机构以蒸发所述蒸发腔室中的流体的一部分以响应于期间的点火信号而形成驱动气泡发射操作。驱动气泡检测传感器与热驱动气泡形成机构分离并且与汽化腔室中的流体接触，驱动气泡检测传感器通过汽化腔室注入固定电流以产生表示汽化的电压响应的第一电压信号并且指示在发射操作期间驱动气泡形成。一个热传感器，用于在点火操作期间产生表示蒸发室的热响应的第二电压信号，第一和第二电压信号组合表示流体室的工作状态。

9. 发明申请

WO2021194503A1 OPTICAL DATA TRANSMISSIONS 审中-公开
公开(公告)号：WO2021194503A1
公开(公告)日：2021-09-30
申请号：PCT/US2020/025207
申请日：2020-03-27
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： ANDERSON, Daryl, Eugene , LINN, Scott, A. , GARDNER, James, Michael , MARTIN, Eric, T. , HAMMERSTAD, Diane, R. , NOVAK, David, B.
IPC分类号： B41J2/175 , B41J29/38 , B41F33/14
摘要： An example fluid ejection device includes a photodetector to receive, upon an alignment between the photodetector and a photoemitter of a printing device, optically transmitted data encoded as electromagnetic radiation emitted from the photoemitter; and a storage medium to store the optically transmitted data in the form of data queryable by the printing device.

10. 发明申请

WO2020204951A1 FLUID PROPERTY SENSOR 审中-公开
公开(公告)号：WO2020204951A1
公开(公告)日：2020-10-08
申请号：PCT/US2019/026152
申请日：2019-04-05
申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
发明人： STUDER, Anthony, D. , OLSEN, David, N. , CUMBIE, Michael, W. , CHEN, Chien-Hua , GARDNER, James, Michael , LINN, Scott, A.
IPC分类号： G01F23/00 , B41J2/125 , B41J2/175 , G01F23/24 , G01F23/26 , G01L1/20 , G01L1/22 , G01N5/00 , G01N9/00
摘要： This disclosure discusses a fluid property sensor, comprising an electrical circuit assembly (ECA) including an external interface coupled to a common interface bus; a fluid level sensor coupled to the common interface bus to indicate a fluid level and/or a pressure sensor coupled 5 to the common interface bus to indicate a pressure event; and/or a driver circuit coupled to the common interface bus, configured to communicate characteristics of the fluid level sensor and the pressure sensor.

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