专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11660822B2 System and method for improved infilling of part interiors in objects formed by additive manufacturing systems 有权
公开(公告)号：US11660822B2
公开(公告)日：2023-05-30
申请号：US17157568
申请日：2021-01-25
申请人： Xerox Corporation , Palo Alto Research Center Incorporated
发明人： Stuart A. Schweid , David A. Mantell , PriyaankaDevi Guggilapu , David G. Tilley , Christopher T. Chungbin , Walter Hsiao , Dinesh Krishna Kumar Jayabal , Daniel Cormier
IPC分类号： B29C64/393 , B33Y30/00 , G06F18/20 , G06F18/2411 , B22F10/22 , B29C64/112 , G06N3/004 , B22F12/53
CPC分类号： B29C64/393 , B33Y30/00 , G06F18/2411 , G06F18/295 , B22F12/53 , G06N3/004
摘要： A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.

2. 发明公开

US20230241841A1 METHOD FOR IMPROVED INFILLING OF PART INTERIORS IN OBJECTS FORMED BY ADDITIVE MANUFACTURING SYSTEMS 审中-公开
公开(公告)号：US20230241841A1
公开(公告)日：2023-08-03
申请号：US18299636
申请日：2023-04-12
申请人： Xerox Corporation , Palo Alto Research Center Incorporated
发明人： Stuart A. Schweid , David A. Mantell , PriyaankaDevi Guggilapu , David G. Tilley , Christopher T. Chungbin , Walter Hsiao , Dinesh Krishna Kumar Jayabal , Daniel Cormier
IPC分类号： B29C64/393 , B33Y30/00 , G06F18/20 , G06F18/2411
CPC分类号： B29C64/393 , B33Y30/00 , G06F18/295 , G06F18/2411 , G06N3/004
摘要： A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.

3. 发明申请

US20220234298A1 SYSTEM AND METHOD FOR IMPROVED INFILLING OF PART INTERIORS IN OBJECTS FORMED BY ADDITIVE MANUFACTURING SYSTEMS 有权
公开(公告)号：US20220234298A1
公开(公告)日：2022-07-28
申请号：US17157568
申请日：2021-01-25
申请人： Xerox Corporation , Palo Alto Research Center Incorporated
发明人： Stuart A. Schweid , David A. Mantell , PriyaankaDevi Guggilapu , David G. Tilley , Christopher T. Chungbin , Walter Hsiao , Dinesh Krishna Kumar Jayabal , Daniel Cormier
IPC分类号： B29C64/393 , B29C64/112 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.

4. 发明授权

US12023871B2 Method for improved infilling of part interiors in objects formed by additive manufacturing systems 有权
公开(公告)号：US12023871B2
公开(公告)日：2024-07-02
申请号：US18299636
申请日：2023-04-12
申请人： Xerox Corporation , Palo Alto Research Center Incorporated
发明人： Stuart A. Schweid , David A. Mantell , PriyaankaDevi Guggilapu , David G. Tilley , Christopher T. Chungbin , Walter Hsiao , Dinesh Krishna Kumar Jayabal , Daniel Cormier
IPC分类号： B29C64/393 , B33Y30/00 , G06F18/20 , G06F18/2411 , B22F10/85 , B22F12/53 , G06N3/004 , G06N20/00
CPC分类号： B29C64/393 , B33Y30/00 , G06F18/2411 , G06F18/295 , B22F12/53 , G06N3/004
摘要： A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.

5. 发明授权

US11883881B2 System and method for operating a material drop ejecting three-dimensional (3D) object printer to prevent quantization error in perimeters of a three-dimensional printed object 有权
公开(公告)号：US11883881B2
公开(公告)日：2024-01-30
申请号：US17157448
申请日：2021-01-25
申请人： Xerox Corporation , Palo Alto Research Center Incorporated
发明人： Stuart A. Schweid , David A. Mantell , Christopher T. Chungbin , David G. Tilley , Walter Hsiao , PriyaankaDevi Guggilapu , Daniel Cormier , Dinesh Krishna Kumar Jayabal
IPC分类号： B33Y50/02 , B22F10/85 , B33Y10/00 , B33Y30/00 , B22F12/53 , B22F10/22 , B22D23/00
CPC分类号： B22F10/85 , B22D23/003 , B22F10/22 , B22F12/53 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A slicer in a material drop ejecting three-dimensional (3D) object printer determines the number of material drops to eject to form a perimeter in an object layer and distributes a quantization error over the layers forming the perimeter. The slicer also identifies the location for the first material drop ejected to form the perimeter using a blue noise generator.

6. 发明申请

US20220234110A1 SYSTEM AND METHOD FOR OPERATING A MATERIAL DROP EJECTING THREE-DIMENSIONAL (3D) OBJECT PRINTER TO PREVENT QUANTIZATION ERROR IN PERIMETERS OF A THREE-DIMENSIONAL PRINTED OBJECT 有权
公开(公告)号：US20220234110A1
公开(公告)日：2022-07-28
申请号：US17157448
申请日：2021-01-25
申请人： Xerox Corporation , Palo Alto Research Center Incorporated
发明人： Stuart A. Schweid , David A. Mantell , Christopher T. Chungbin , David G. Tilley , Walter Hsiao , PriyaankaDevi Guggilapu , Daniel Cormier , Dinesh Krishna Kumar Jayabal
IPC分类号： B22F10/85 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B22D23/00 , B22F10/22
摘要： A slicer in a material drop ejecting three-dimensional (3D) object printer determines the number of material drops to eject to form a perimeter in an object layer and distributes a quantization error over the layers forming the perimeter. The slicer also identifies the location for the first material drop ejected to form the perimeter using a blue noise generator.

7. 发明授权

US11320737B1 Fountain solution thickness measurement using a hot wire anemometer in a lithography printing system 有权
公开(公告)号：US11320737B1
公开(公告)日：2022-05-03
申请号：US17137711
申请日：2020-12-30
申请人： Xerox Corporation
发明人： Christopher Mieney , David A. Vankouwenberg , Martin L. Frachioni , David M. Gurak , Stuart A. Schweid
IPC分类号： G03F7/20 , G01P5/10 , G01B13/06
摘要： According to aspects of the embodiments, there is provided a method of measuring the amount of fountain solution using a hot wire anemometer. Fountain solution thickness is measured using the flow rate of vaporized fountain solution and comparing to baseline air only flow rate. The vaporized measurement is correlated with the baseline utilizing specific heat, density and enthalpy values and keeping velocity of fluid constant. Changes in the measurement will then be related to the specific heat, density and enthalpy. Density can be back calculated to yield volume and knowing the area of the image being printed give a real time thickness value.

8. 发明授权

US10717298B1 System and method for improving character edge formation on non-absorbing media 有权
公开(公告)号：US10717298B1
公开(公告)日：2020-07-21
申请号：US16018404
申请日：2018-06-26
申请人： Xerox Corporation
发明人： David A. Mantell , Chu-Heng Liu , Seemit Praharaj , Stuart A. Schweid
IPC分类号： B41J2/21 , B41J2/045 , B41J11/00 , B41J2/14
摘要： A method of operating an inkjet printer that forms textual data with non-absorbing media ink on non-absorbing media forms the characters with structure that improves the integrity of the edges of the characters over previously known systems. The method includes modifying character pixels in image data used to generate firing signals for operating inkjets in a print head of an inkjet imaging device, generating firing signals for operating the inkjets from the modified character pixels, and operating the inkjets in the print head with the generated firing signals to eject drops of non-absorbing media ink onto non-absorbing media to form characters on the non-absorbing media. The character pixel modification reduces a number of character pixels in a connecting zone of a character that have a value that corresponds to a firing signal that activates an inkjet.

9. 发明授权

US10382655B2 System and method for calibrating a linear array using a calibration standard and a calibration piece with dark and light response measurements 有权
公开(公告)号：US10382655B2
公开(公告)日：2019-08-13
申请号：US15651574
申请日：2017-07-17
申请人： Xerox Corporation
发明人： Stuart A. Schweid , Michael B. Monahan , Robert P. Herloski , Martin E. Hoover
IPC分类号： H04N1/60 , G01J3/52 , H04N1/32 , H04N1/407 , H04N1/48 , G01J3/46 , H04N17/02
摘要： A method of balancing responses of a plurality of sensor chips arranged generally in a linear array comprising: exposing the plurality of sensor chips to an absence of illumination; measuring a dark response of each photosensor of a plurality of photosensors; positioning a calibration piece within a field of view of the plurality of sensor chips other than a calibration sensor chip; illuminating a calibration standard and the calibration piece with a light source; measuring a light response of each photosensor of the plurality of photosensors; applying an offset to the light response of each photosensor of the plurality of photosensors by subtracting the dark response of each photosensor of the plurality of photosensors to obtain an offset light response for each photosensor of the plurality of photosensors; calculating a mean offset light response for each sensor chip of the plurality of sensor chips by averaging the offset light response for each photosensor of the plurality of photosensors in each sensor chip of the plurality of sensor chips; calculating a modified light response for each photosensor of the plurality of photosensors by modifying the offset light response for each photosensor of the plurality of photosensors based on the mean offset light response of the sensor chip comprising the respective photosensor, the mean offset light response of the calibration sensor chip, an initial mean offset light response of the sensor chip comprising the respective photosensor, and an initial mean offset light response of the calibration sensor chip; and, applying a first gain to the offset light response of each photosensor of the plurality of photosensors based on the modified light response of each respective photosensor to obtain a corrected light response of each photosensor of the plurality of photosensors.

10. 发明授权

US09955041B2 System and method for tone reproduction curve color resolution enhancement in a three-dimensional object printer 有权
公开(公告)号：US09955041B2
公开(公告)日：2018-04-24
申请号：US14737787
申请日：2015-06-12
申请人： Xerox Corporation
发明人： Stuart A. Schweid , Martin L. Frachioni
IPC分类号： H04N1/405 , H04N1/407 , H04N1/034 , G06K15/02 , G06K15/10 , B41J3/407 , B41J2/205 , B29C67/00 , H04N1/52 , H04N1/60 , B41J2/21 , B33Y50/00
CPC分类号： H04N1/4055 , B29C64/386 , B29C67/0007 , B33Y50/00 , B41J2/2054 , B41J2/2121 , B41J3/4073 , G05B2219/49023 , G06K15/102 , G06K15/1878 , G06K15/1881 , H04N1/034 , H04N1/4072 , H04N1/52 , H04N1/6002 , H04N1/6027
摘要： A method of operating a three-dimensional object printer to form printed images on a surface of an object with increased color resolution includes generating a plurality of low-precision tone reproduction curves (TRCs) from a plurality of high-precision color conversion entries that are modified by a plurality of values in a one-to-one correspondence to the TRCs. The method further comprises generating modified contone image and halftone image data for each plane using one of the low-precision TRCs and forming the image from multiple printed layers of ink corresponding to the plurality of planes.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式