-
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.
-
Patent Agency Ranking
公开(公告)号：US09925767B2
公开(公告)日：2018-03-27
申请号：US15224080
申请日：2016-07-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Eric T. Martin , Neel Banerjee
CPC classification number: B41J2/04588 , B41J2/0458
Abstract: In one example, a device for driving a nozzle of a fluid-jet printing device includes a circuit to, for each pixel time of a plurality of pixel times select a waveform from a plurality of waveforms based on more than one of waveform time delay, waveform pulse width and waveform shape, and apply the selected waveform to the nozzle to drive the nozzle to eject fluid for a current pixel time.
-
3.发明申请WAVEFORM SELECTION AND/OR SCALING FOR DRIVING NOZZLE OF FLUID-JET PRINTING DEVICE 有权流体喷射装置驱动喷嘴的波形选择和/或放大公开(公告)号：US20160332441A1
公开(公告)日：2016-11-17
申请号：US15224080
申请日：2016-07-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Eric T. Martin , Neel Banerjee
IPC: B41J2/045
CPC classification number: B41J2/04588 , B41J2/0458
Abstract: In one example, a device for driving a nozzle of a fluid-jet printing device includes a circuit to, for each pixel time of a plurality of pixel times select a waveform from a plurality of waveforms based on more than one of waveform time delay, waveform pulse width and waveform shape, and apply the selected waveform to the nozzle to drive the nozzle to eject fluid for a current pixel time.
Abstract translation: 在一个示例中，用于驱动流体喷射打印装置的喷嘴的装置包括：电路，对于多个像素时间的每个像素时间，基于多于一个波形时间延迟的多个波形来选择波形， 波形脉冲宽度和波形形状，并将所选波形应用于喷嘴，以驱动喷嘴喷射流体以达到当前像素时间。
-
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：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.
-
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.
-
-
-
-
-
Search Results
6
records
(took 0.018 seconds)
