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

IPC: G06F21/60 ,  B33Y50/00

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.

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

IPC: G06F21/60 ,  B33Y50/00 ,  H04L9/00 ,  H04L9/14

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.

公开(公告)号：US20250148107A1

公开(公告)日：2025-05-08

申请号：US18501892

申请日：2023-11-03

Applicant: Xerox Corporation

Inventor： Shantanu Rane ,  Alejandro E. Brito ,  Morad Behandish

IPC: G06F21/62 ,  H04L9/08

Abstract: The present disclosure provides techniques for processing a three-dimensional (3D) object file or object model in a privacy-preserving manner. An example method includes receiving, from a remote computing device, an encrypted object file comprising a specification of a 3D printable object and receiving a request to process the encrypted object file to identify a characteristic of the 3D printable object. The method also includes obtaining an encrypted comparison file and computing an encrypted Minkowski sum of the encrypted object file and the encrypted comparison file to generate an encrypted result file that comprises information about the characteristic. Computing the encrypted Minkowski sum is performed without decrypting the encrypted object file. The method also includes sending the encrypted result file to the remote computing device.

公开(公告)号：US20250148092A1

公开(公告)日：2025-05-08

申请号：US18501906

申请日：2023-11-03

Applicant: Xerox Corporation

Inventor： Shantanu Rane ,  Alejandro E. Brito ,  Morad Behandish

IPC: G06F21/60 ,  G06F3/12 ,  H04L9/00

Abstract: The present disclosure provides techniques for finding non-printable features in a three-dimensional (3D) printable object. An example method includes receiving a first encrypted file and a request to process the first encrypted file to identify non-printable features of a 3D printable object, wherein the first encrypted file is an encrypted complement of an object file that comprises a specification of the 3D printable object. The method also includes computing a first encrypted Minkowski sum of the first encrypted file and an encrypted minimum feature file to generate an encrypted intermediate file and sending the encrypted intermediate file. The method also includes receiving a second encrypted file that comprises an encrypted complement of the encrypted intermediate file and computing a second encrypted Minkowski sum of the second encrypted file and the encrypted minimum feature file to generate an encrypted result file that describes non-printable features of the 3D printable object.

公开(公告)号：US12240182B2

公开(公告)日：2025-03-04

申请号：US17445635

申请日：2021-08-23

Applicant: XEROX CORPORATION

Inventor： Amirmassoud Mirzendehdel ,  Morad Behandish ,  Saigopal Nelaturi

IPC: B29C64/393 ,  B29C64/40 ,  B33Y10/00 ,  B33Y50/02

Abstract: A method includes receiving a representation of an initial design domain. The method also includes iteratively generating intermediate part designs by redistributing material within the initial design domain. The intermediate part designs each include a 3D part and a support volume. The method also includes calculating a measure of inaccessibility of the support volume of each intermediate part design by at least one subtractive tool assembly. At least one of the intermediate part designs is generated based at least partially upon the measure of inaccessibility of a previous one of the intermediate part designs.