公开(公告)号：WO2021216528A1

公开(公告)日：2021-10-28

申请号：PCT/US2021/028124

申请日：2021-04-20

Applicant: MAGIK EYE INC.

Inventor： KIMURA, Akiteru ,  TSAI, Chao-Hsu

IPC: G01B11/02 ,  G01B9/02 ,  G02B5/18 ,  G02B27/00 ,  G02B27/10 ,  G06T7/521

Abstract: An example distance sensor includes a light projecting system to project a pattern of points of light onto an object. The light projecting system includes a laser light source to project coherent light and a diffractive optical element having a plurality of layers that are etched to form binary step patterns, wherein the plurality of layers is configured to split the coherent light into a plurality of beams of light, wherein each beam of light forms one point of the pattern, and wherein the plurality of layers is further configured to control divergence angles of the beams. The example distance sensor further includes a light receiving system to capture an image of the pattern projected onto the object and a processor to calculate a distance to the object based on an appearance of the pattern in the image and on knowledge of trajectories of the points of light.

公开(公告)号：WO2021045782A1

公开(公告)日：2021-03-11

申请号：PCT/US2019/050025

申请日：2019-09-06

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

Inventor： KORTHUIS, Vincent C. ,  PHAM, Huyen ,  YAMASHITA, Tsuyoshi

IPC: B41J2/14

Abstract: In example implementations, a printhead die is provided. The printhead die includes a substrate, a chamber layer formed on the substrate, a plurality of printing fluid ejection chambers coupled to opposite sides of the chamber layer and along a length of the chamber layer, and a top hat layer formed on the chamber layer and the plurality of printing fluid ejection chambers. The chamber layer includes a void to store printing fluid. The top hat layer includes an initial unsupported top hat layer portion over the void, wherein the initial unsupported top hat layer portion comprises a first end that is narrower than a second end.

公开(公告)号：WO2021006903A1

公开(公告)日：2021-01-14

申请号：PCT/US2019/041289

申请日：2019-07-11

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

Inventor： ANDERSON, Jonathan Michael ,  GAIOT, Louis M. ,  HUANG, Cheng

IPC: G06F3/01 ,  H04N13/383

Abstract: In example implementations, a display is provided. The display includes a camera, a communication interface, and a processor. The camera is to capture a first image of a head-mounted device (HMD) wearable by a user. The communication interface is to receive pupil data from the HMD. The processor is communicatively coupled to the camera and the wireless communication interface. The processor is to determine a bound of a field-of-view based on the first image of the HMD, track an eye of the user based on the field-of-view and the pupil data to determine a location of focus of the user, and move a second image to the location of focus on the display.

公开(公告)号：WO2020256709A1

公开(公告)日：2020-12-24

申请号：PCT/US2019/037881

申请日：2019-06-19

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

Inventor： MARTIN, Eric Thomas ,  CICILI, Rogelio

IPC: B41J2/05 ,  B41J2/175

Abstract: In example implementations, an apparatus is provided. The apparatus includes a first low voltage control block, a second low voltage control block, a primitive level shifter coupled to the first low voltage control block, a plurality of nozzle level shifters coupled to the primitive level shifter and a second low voltage control block, and a high side switch (HSS) control coupled to each one of the plurality of nozzle level shifters and the second low voltage control block. The plurality of nozzle level shifters are communicatively coupled to each other. The primitive shifter is to enable a selected nozzle level shifter to fire a respective HSS control circuit of the selected nozzle level shifter and to direct a tail current from the selected nozzle level shifter.

公开(公告)号：WO2020246986A1

公开(公告)日：2020-12-10

申请号：PCT/US2019/036026

申请日：2019-06-07

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

Inventor： VANKIPURAM, Mithra ,  ROBINSON, Ian N.

IPC: G06F3/00 ,  G02B27/01

Abstract: In example implementations, an apparatus is provided. The apparatus includes a display, an eye tracking sensor, and a processor. The eye tracking sensor is to capture eye movements of a user. The processor is in communication with the display and the eye tracking sensor. The processor is to identify a type of eye movement from the eye movements captured by the eye tracking sensor and activate a control that is shown in the display.

公开(公告)号：WO2020162881A1

公开(公告)日：2020-08-13

申请号：PCT/US2019/016626

申请日：2019-02-05

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

Inventor： ANDERSON, Ronald R.

IPC: B41J15/16 ,  B41L15/10 ,  B41L15/04

Abstract: In example implementations, a printing device is provided. The printing device includes a printer module, a first driver roller, and a second drive roller. The printer module includes a single set of print bars. A first side of the single set of print bars is to print on a first side of a continuous web of print media and a second side of the single set of print bars is to print on a second side of the continuous web of print media. The continuous web of print media travels over a common set of idler rollers. The first driver roller is to control an amount of tension of the continuous web of print media on a first side. The second drive roller is to control an amount of tension of the continuous web of print media on a second side. The amount of tension of the continuous web of print media on the second side is greater than the amount of tension of the continuous web of print media on the first side.

公开(公告)号：WO2020122895A1

公开(公告)日：2020-06-18

申请号：PCT/US2018/065188

申请日：2018-12-12

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  UNIVERSIDADE FEDERAL DE PERNAMBUCO - UFPE

Inventor： MELO, Silvio de Barros ,  HENRIQUES, Diogo ,  SIMOES, Francisco ,  BARROS, Gutemberg ,  SILVA, André ,  TEIXEIRA, Joao ,  TEICHRIEB, Veronica ,  CORREIA, Walter Franklin M. ,  CHAVES, Thiago ,  CHARAMBA, Gustavo ,  DOMINGUES, Thiago ,  CASTILHO, Vinicius ,  RISS, Marcelo Aita ,  WHITE, Scott A.

IPC: G06T7/12 ,  B29C64/386

Abstract: In example implementations, a method executed by a processor is provided. The method divides a computer generated three dimensional (3D) model of an object to be printed into a plurality of two dimensional slices. A plurality of arc segments to describe curved surfaces of each one of the plurality of two dimensional slices is estimated. Print instructions are generated that include the plurality of arc segments for each one of the plurality of two dimensional slices. The method loads the print instructions on a 3D printer to print the object in accordance with the print instructions.

公开(公告)号：WO2020117223A1

公开(公告)日：2020-06-11

申请号：PCT/US2018/063994

申请日：2018-12-05

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

Inventor： CHEN, Jian Ming ,  TING, Chia Wei ,  CHEN, Jung Chun

IPC: G02B13/14

Abstract: In example implementations, an apparatus is provided. The apparatus includes a light source, a light guide coupled to the light source, and a camera having a privacy lens coupled to the light guide. The light source is to emit light. The privacy lens receives light from the light source via the light guide to activate the privacy lens. A housing of an electronic device is to enclose the light source, the light guide, and the camera having the privacy lens.

公开(公告)号：WO2020086091A1

公开(公告)日：2020-04-30

申请号：PCT/US2018/057677

申请日：2018-10-26

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

Inventor： MORENO CLEVES, Camilo Andres ,  NAUKA, Krzysztof

IPC: B29C64/264 ,  G02B5/10 ,  B29C64/10 ,  B33Y10/00 ,  B33Y30/00

Abstract: In example implementations, a mirror assembly for a three dimensional printer is provided. The mirror assembly includes a first side and a second side. The first side is symmetrical to the second side and enclose a cylindrical light source. The first side and the second side each include a first curved reflective surface and a second curved reflective surface. An end of the first curved reflective surface and a beginning of the second curved reflective surface form an edge along a surface formed by the first curved reflective surface and the second curved reflective surface.

公开(公告)号：WO2019209259A1

公开(公告)日：2019-10-31

申请号：PCT/US2018/029018

申请日：2018-04-24

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

Inventor： ATKINSON, Lee

IPC: G09G5/00 ,  H04N13/332

Abstract: A display device includes a first plurality of pixels, a second plurality of pixels, a first serial-to-parallel converter (SPC), a second SPC, a timing controller, and a switch. The first plurality of pixels forms a first display region to display a first image to be viewed by a user's left eye. The second plurality of pixels forms a second display region to display, simultaneously with display of the first image, a second image to be viewed by the user's right eye. The first SPC is coupled to the first display region; the second SPC is coupled to the second display region. The timing controller detects an indicator in a signal received from a graphics controller. The switch moves, under instruction from the timing controller, to a position that allows identical pixel data extracted from the signal to be transmitted simultaneously to the first SPC and the second SPC.