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公开(公告)号：US10507667B2
公开(公告)日：2019-12-17
申请号：US15771056
申请日：2016-10-26
Applicant: ADVANCED VISION TECHNOLOGY (A.V.T.) LTD
Inventor： Chanan Gazala , Gilad Golan , Barry Ben Ezra , Dan Zamir
IPC: B41J2/21 , B41J29/393
Abstract: A method identifies at least one malfunctioning nozzle in a digital printing press, the digital printing press including a plurality of nozzles. The method includes printing a design on a substrate, acquiring at least one image of the printed design and identifying at least one artifact in the acquired image. The method further includes identifying the malfunctioning nozzle and classifying the at least one malfunctioning nozzle according to the at least one of the acquired image of the printed design, at least a portion of a nozzle pattern and at least a portion of a uniformity pattern.
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公开(公告)号：US20230347658A1
公开(公告)日：2023-11-02
申请号：US17797542
申请日：2021-02-04
Applicant: Advanced Vision Technology (A.V.T.) Ltd.
Inventor： Leon Kanelovitch , Chanan Gazala
IPC: B41J2/21 , B41J29/393
CPC classification number: B41J2/2135 , B41J29/393 , B41J2029/3935
Abstract: A system for aligning print-heads in a printing-press, which includes a print-head array which includes a plurality of print-head-rows. Each print-head-row includes a plurality of print-heads and prints print a color associated with therewith. Each print-head includes an array-of-nozzles, which includes a plurality of nozzle-lines. The system includes an imager and a processor. The imager includes at least one imaging-sensor. The imager is configured to acquire an image of a printed first-alignment-pattern and further configured to acquire an image of a printed second-alignment-pattern. The processor is configured to receive the image of the first-alignment-pattern and the image of the second-alignment-pattern and to determine alignment of reference print-heads in at least a reference-row of print-heads from the image of the first-alignment-pattern. The processor is also configured to determine alignment of color print-heads in rows other than the reference-row of print-heads, relative to the reference print-heads, from the image of the second-alignment-pattern.
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公开(公告)号：US10262409B2
公开(公告)日：2019-04-16
申请号：US16105704
申请日：2018-08-20
Applicant: ADVANCED VISION TECHNOLOGY (A.V.T.) LTD.
Inventor： Maya Dekel-Klein , Chanan Gazala
Abstract: Method for generating a test-set for inspection of a design being printed by a printing-press, each color-unit in the printing-press prints a respective color. The design is composed of original-layers. Inspection includes determining the origin of at least one defect in the printed-design. The method includes the procedures of generating defective-layer or layers of the design, by introducing at least one selected defect to at least one selected original-layer, in a selected location or locations and combining layers using a trained-synthesis-neural-network. The layers include the defective-layer or layers and remaining ones of the original-layers. The trained-synthesis-neural-network provides a plurality of features respective of each pixel. The method also includes the procedure of generating the test-set from the output of the synthesis-neural-network. The test-set includes at least one synthesized-test-image. The synthesized-test-image includes at least one synthesized-defect at the selected location. The test-set is employed to determine the origin of the defect.
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公开(公告)号：US12157322B2
公开(公告)日：2024-12-03
申请号：US17797542
申请日：2021-02-04
Applicant: Advanced Vision Technology (A.V.T.) Ltd.
Inventor： Leon Kanelovitch , Chanan Gazala
IPC: B41J2/21 , B41J29/393
Abstract: A system for aligning print-heads in a printing-press, which includes a print-head array which includes a plurality of print-head-rows. Each print-head-row includes a plurality of print-heads and prints print a color associated with therewith. Each print-head includes an array-of-nozzles, which includes a plurality of nozzle-lines. The system includes an imager and a processor. The imager includes at least one imaging-sensor. The imager is configured to acquire an image of a printed first-alignment-pattern and further configured to acquire an image of a printed second-alignment-pattern. The processor is configured to receive the image of the first-alignment-pattern and the image of the second-alignment-pattern and to determine alignment of reference print-heads in at least a reference-row of print-heads from the image of the first-alignment-pattern. The processor is also configured to determine alignment of color print-heads in rows other than the reference-row of print-heads, relative to the reference print-heads, from the image of the second-alignment-pattern.
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公开(公告)号：US20200154994A1
公开(公告)日：2020-05-21
申请号：US16715778
申请日：2019-12-16
Applicant: Advanced Vision Technology (A.V.T.) Ltd
Inventor： Chanan Gazala , Gilad Golan , Barry Ben Ezra , Dan Zamir
Abstract: A method identifies at least one malfunctioning nozzle in a digital printing press, the digital printing press including a plurality of nozzles. The method includes printing a design on a substrate, acquiring at least one image of the printed design and identifying at least one artifact in the acquired image. The method further includes identifying the malfunctioning nozzle and classifying the at least one malfunctioning nozzle according to the at least one of the acquired image of the printed design, at least a portion of a nozzle pattern and at least a portion of a uniformity pattern.
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Patent Agency Ranking
公开(公告)号：US10657640B2
公开(公告)日：2020-05-19
申请号：US16382560
申请日：2019-04-12
Applicant: Advanced Vision Technology (A.V.T.) Ltd.
Inventor： Maya Dekel-Klein , Chanan Gazala
Abstract: Method for generating a test-set for inspection of a design being printed by a printing-press, each color-unit in the printing-press prints a respective color. The design is composed of original-layers. Inspection includes determining the origin of at least one defect in the printed-design. The method includes the procedures of generating defective-layer or layers of the design, by introducing at least one selected defect to at least one selected original-layer, in a selected location or locations and combining layers using a trained-synthesis-neural-network. The layers include the defective-layer or layers and remaining ones of the original-layers. The trained-synthesis-neural-network provides a plurality of features respective of each pixel. The method also includes the procedure of generating the test-set from the output of the synthesis-neural-network. The test-set includes at least one synthesized-test-image. The synthesized-test-image includes at least one synthesized-defect at the selected location. The test-set is employed to determine the origin of the defect.
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公开(公告)号：US10576751B2
公开(公告)日：2020-03-03
申请号：US16092738
申请日：2017-04-06
Applicant: ADVANCED VISION TECHNOLOGY (A.V.T.) LTD.
Inventor： Chanan Gazala
Abstract: A method of identifying at least one malfunctioning nozzle in a digital printing press including a plurality of nozzles. The method includes the procedures of printing a design on a substrate, acquiring at least one image of the printed design and identifying at least one artifact in the acquired image. The method further includes the procedure of identifying the malfunctioning nozzle and classifying the at least one malfunctioning nozzle according to at least a portion of a combined pattern.
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公开(公告)号：US11458724B2
公开(公告)日：2022-10-04
申请号：US16333183
申请日：2017-09-07
Applicant: ADVANCED VISION TECHNOLOGY (A.V.T.) LTD.
Inventor： Brian Gamm , Alan Then , Steven Headley , Chanan Gazala
Abstract: A method controls the color in a printing press, which includes at least one printing station printing a respective color design. The method includes the procedures of determining a control factor to color model, printing a design on a web and acquiring color characteristics corresponding to the printed design on the web. The method further includes the procedures of determining the color quality of the printed color design and determining a required change to at least one control factor when a correction to the color characteristics of the printed design is required. The change to at least one control factor is determined by determining the at least one control factor with respective color related information, which results in a reference color characteristic, according to the control factor to color model. The method returns to the procedure of printing when a correction is not required.
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公开(公告)号：US11001077B2
公开(公告)日：2021-05-11
申请号：US16715778
申请日：2019-12-16
Applicant: Advanced Vision Technology (A.V.T.) Ltd
Inventor： Chanan Gazala , Gilad Golan , Barry Ben Ezra , Dan Zamir
IPC: B41J2/21 , B41J29/393 , A61B3/00 , A61B3/024 , A61B3/06
Abstract: A method identifies at least one malfunctioning nozzle in a digital printing press, the digital printing press including a plurality of nozzles. The method includes printing a design on a substrate, acquiring at least one image of the printed design and identifying at least one artifact in the acquired image. The method further includes identifying the malfunctioning nozzle and classifying the at least one malfunctioning nozzle according to the at least one of the acquired image of the printed design, at least a portion of a nozzle pattern and at least a portion of a uniformity pattern.
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公开(公告)号：US20190304085A1
公开(公告)日：2019-10-03
申请号：US16382560
申请日：2019-04-12
Applicant: Advanced Vision Technology (A.V.T.) Ltd.
Inventor： Maya Dekel-Klein , Chanan Gazala
Abstract: Method for generating a test-set for inspection of a design being printed by a printing-press, each color-unit in the printing-press prints a respective color. The design is composed of original-layers. Inspection includes determining the origin of at least one defect in the printed-design. The method includes the procedures of generating defective-layer or layers of the design, by introducing at least one selected defect to at least one selected original-layer, in a selected location or locations and combining layers using a trained-synthesis-neural-network. The layers include the defective-layer or layers and remaining ones of the original-layers. The trained-synthesis-neural-network provides a plurality of features respective of each pixel. The method also includes the procedure of generating the test-set from the output of the synthesis-neural-network. The test-set includes at least one synthesized-test-image. The synthesized-test-image includes at least one synthesized-defect at the selected location. The test-set is employed to determine the origin of the defect.
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