公开(公告)号：US20230385479A1

公开(公告)日：2023-11-30

申请号：US18031573

申请日：2020-10-13

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Faisal Azhar ,  Stephen POLLARD ,  Sven Molkenstruck ,  Guy ADAMS

IPC: G06F30/20 ,  G01B21/20 ,  B33Y50/00 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/393 ,  B22F10/31 ,  B22F10/85

CPC classification number: G06F30/20 ,  G01B21/20 ,  B33Y50/00 ,  B33Y50/02 ,  B29C64/386 ,  B29C64/393 ,  B22F10/31 ,  B22F10/85

Abstract: A method of making a measurement relating to an object manufactured according to a model may be provided. The object may have a measured surface comprising a surface deviation relative to a corresponding surface of the model. The method may comprise obtaining measured surface data representing at least a portion of the measured surface comprising the said surface deviation. The method may comprise determining a measurement surface corresponding to the measured surface of the object by performing a statistical analysis of at least a portion of the measured surface data in respect of an interpretation direction such that a portion of the measured surface data is offset from the measurement surface in the interpretation direction. The method may comprise making a measurement relating to the object depending on the measurement surface.

公开(公告)号：US20170330046A1

公开(公告)日：2017-11-16

申请号：US15522107

申请日：2014-10-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Stephen POLLARD ,  Steven J SIMSKE ,  Guy ADAMS

IPC: G06K9/18 ,  G06K19/06 ,  G06K9/20 ,  G06F21/32 ,  H04N1/32 ,  G06K9/46 ,  G06F17/30

CPC classification number: G06K9/18 ,  G06F16/00 ,  G06F21/32 ,  G06F21/36 ,  G06K9/20 ,  G06K9/46 ,  G06K19/06 ,  H04N1/32256 ,  H04N1/32325 ,  H04N2201/3235 ,  H04N2201/3269 ,  H04N2201/3271

Abstract: Digital signature authentication systems and methods are disclosed. An example method of authenticating a digital signature extracted from a high resolution image includes comparing an extracted signature from an image to a reference signature. The example method also includes authenticating the extracted signature against the reference signature according to one of a plurality of different authentication protocols.

公开(公告)号：US20190054729A1

公开(公告)日：2019-02-21

申请号：US16079296

申请日：2016-10-17

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Guy ADAMS ,  Steven J. SIMSKE ,  Luis GARCIA GARCIA ,  Alejandro Manuel DE PENA ,  Pol FORNOS

IPC: B33Y10/00 ,  B29C64/135 ,  B29C64/268 ,  B33Y70/00 ,  G06F17/50

Abstract: Methods of generating a three-dimensional object with an additive manufacturing system are described. The method includes depositing a build material within a working area, thereby providing a build material layer, selectively depositing a fusing agent onto a portion of the build material layer, applying energy from a bulk-fusion energy source to the working area, thereby fusing at least a portion of the build material where the fusing agent is deposited, and applying energy from a focused energy source to one or more localized areas of the working area.