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公开(公告)号：US20250148091A1
公开(公告)日：2025-05-08
申请号：US18501900
申请日：2023-11-03
Applicant: Xerox Corporation
Inventor： Shantanu Rane , Alejandro E. Brito , Morad Behandish
Abstract: The present disclosure provides techniques for identifying regions of a three-dimensional (3D) printable object that are accessible by a tool. An example method includes receiving, from a remote computing device, an encrypted object file that includes a specification of a 3D printable object and receiving a request to process the encrypted object file to identify regions of the 3D printable object that are accessible by a tool. The method also includes obtaining a tool specification, computing a complement of the tool specification, and encrypting the complement of the tool specification to generate an encrypted comparison file. The method also includes computing an encrypted Minkowski sum of the encrypted object file and the encrypted comparison file to generate an encrypted result file that describes the regions of the 3D printable object that are accessible by the tool. The encrypted Minkowski sum is performed without decrypting the encrypted object file.
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公开(公告)号：US20250148090A1
公开(公告)日：2025-05-08
申请号：US18501895
申请日：2023-11-03
Applicant: Xerox Corporation
Inventor： Shantanu Rane , Alejandro E. Brito , Morad Behandish
Abstract: The present disclosure provides techniques for processing a three-dimensional (3D) object file in a privacy-preserving manner. An example method includes obtaining an object file that comprises a specification of a 3D printable object, encrypting the object file using a public key to generate an encrypted object file, and sending, to a remote computing system, the encrypted object file and a request to process the encrypted object file to identify a characteristic of the 3D printable object. The method also includes receiving an encrypted result file from the remote computing system, wherein the encrypted result file comprises an encrypted Minkowski sum of the encrypted object file and an encrypted comparison file. The method also includes decrypting the encrypted result file using a private key corresponding with the public key to generate an unencrypted result file and processing the unencrypted result file to determine the characteristic of the 3D printable object.
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公开(公告)号：US12282189B2
公开(公告)日：2025-04-22
申请号：US18636784
申请日：2024-04-16
Applicant: Xerox Corporation
Inventor： Thomas Wunderer
Abstract: A mask material is deposited on a substrate or growth template. The substrate or growth template is compatible with crystalline growth of a crystalline optical material. Patterned portions of the mask material are removed to expose one or more regions of the substrate or growth template. The one or more regions have target shapes of one or more optical components. The crystalline optical material is selectively grown in the one or more regions to form the one or more optical components.
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4.发明申请公开(公告)号：US20250121612A1
公开(公告)日：2025-04-17
申请号：US18486479
申请日：2023-10-13
Applicant: Xerox Corporation
Inventor： Anthony S. Condello , Varun Sambhy , Patrick J. Howe , Eliud Robles Flores , Guo-Yau Lin
IPC: B41J11/00 , B41J29/377 , B41M5/00 , F25B9/04
Abstract: An apparatus for preserving image quality printed on a substrate comprising a chilling device arranged to chill substrates moving proximate thereto, at least one marking material device, the marking material device arranged to form images on the substrates, and a media transport system configured to move the substrates past the chilling device and further configured to move the substrates past the at least one marking material device to form images on the substrates.
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公开(公告)号：US12271450B2
公开(公告)日：2025-04-08
申请号：US18093326
申请日：2023-01-05
Applicant: Xerox Corporation
Inventor： Edward N. Chapman
Abstract: Methods, systems and security devices for rendering digital invisible ink, can involve representing an invisible item in a single color that is not discernable from white by a human eye, embedding the invisible item into white space of a digital document, and converting the invisible item into a visible item using a transform table that defines how to convert the single color of the invisible item so that the invisible item after a conversion to the visible item is discernable by the human eye.
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Patent Agency Ranking
公开(公告)号：US20250077721A1
公开(公告)日：2025-03-06
申请号：US18459206
申请日：2023-08-31
Applicant: XEROX CORPORATION
Inventor： Lester D. Nelson , Eric A. Bier , Alejandro E. Brito
Abstract: A system and method for captures of physical object data for environment modeling is provided. Mesh data is displayed over an image of a physical space for which a floorplan is to be generated. Instructions to mark an object are received and the instructions include a voice command and eye gaze or gesture. The mesh data is annotated with a marker based on the instructions by placing the marker at a location at which an object is to be identified. A floorplan of the space is generated based on the mesh data. The marker is placed in the floorplan.
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公开(公告)号：US20250065631A1
公开(公告)日：2025-02-27
申请号：US18453866
申请日：2023-08-22
Applicant: Xerox Corporation
Inventor： Seemit Praharaj , Douglas K. Herrmann , Jason M. LeFevre , Jorge A. Alvarez , Anthony S. Condello
Abstract: An inkjet printer includes a waste ink treatment system and a humidification chamber to separate waste ink produced by a printhead maintenance station into solid ink pigment particles and a solvent stream and use the solvent stream to maintain inkjets in the printheads of the inkjet printer in operational status. The waste ink treatment system mixes the waste ink with a metal salt to precipitate the solid ink pigment particles out of the waste ink. The solvent stream remaining after the precipitation of the pigment particles is humidified and directed to air baffles positioned on opposite sides of each printhead in every other printhead module in the process direction. A kit is provided to retroactively modify an existing inkjet printer to treat the waste ink and use the solvent stream to maintain the operational status of the inkjets in the printheads of the inkjet printer.
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公开(公告)号：US12238249B2
公开(公告)日：2025-02-25
申请号：US18055391
申请日：2022-11-14
Applicant: Xerox Corporation
Inventor： Amanda Applin , Kim P. Ciulla
Abstract: A multi-function device (MFD) is disclosed. For example, the MFD includes, a communications interface to establish a communication session with other MFDs within a community of MFDs, a processor, and a non-transitory computer readable medium storing instructions, which when executed by the processor, cause the processor to detect an undesirable image quality level of a print job, determine an optimal setting MFD in the community of MFDs, request optimal settings from the optimal setting MFD, receive the optimal settings from the optimal setting MFD, configure settings on the MFD in accordance with the optimal settings, and execute the print job with the optimal settings.
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公开(公告)号：US20250054323A1
公开(公告)日：2025-02-13
申请号：US18366615
申请日：2023-08-07
Applicant: Xerox Corporation
Inventor： Varun Sambhy , Eliud Robles Flores , Guo-Yau Lin
Abstract: Systems and methods for verifying the authenticity of a printed document are disclosed. The methods include receiving an identification of a portion of the printed document that includes a document signature, and receiving a document signature corresponding to the printed document from a data store. The document signature includes images of one or more first satellite droplet patterns (SDPs) that each include a plurality of ink satellite droplets that were randomly formed during printing of a print image on the printed document. The methods further include receiving an image of the portion of the printed document, analyzing the image to identify one or more second SDPs in the printed document, and authenticating the printed document by determining whether at least some the one or more first SDPs match a corresponding one or more second SDPs.
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10.发明授权公开(公告)号：US12219110B2
公开(公告)日：2025-02-04
申请号：US17859901
申请日：2022-07-07
Applicant: Xerox Corporation
Inventor： Chu-heng Liu , Jorge A. Alvarez , Douglas L. Herrmann , Jason Matthew LeFevre , Seemit Praharaj
Abstract: Methods and systems for securely rendering a security feature with image data to be printed, can involve providing within the image data, data relating to a group of spots, and within the image data, mixing spots of two or more spot sizes among the group of spots to embed information within a stochastic or frequency modulation halftone image. In an embodiment, operations may be implemented for rendering a part of the image with a first spot among the group of spots and a remaining portion of the image with a second spot among the group of spots, wherein the second spot is smaller in size than the first spot.
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