公开(公告)号：US09981820B2

公开(公告)日：2018-05-29

申请号：US15490125

申请日：2017-04-18

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

Inventor： Ling-Li Yuan ,  Jing Hu ,  Yi-Wei Deng ,  Angel Martinez Barambio

IPC: B65H20/16 ,  B41J15/04

CPC classification number: B65H20/16 ,  B41J11/001 ,  B41J15/04 ,  B65H2301/41427 ,  B65H2301/41428 ,  B65H2301/44332 ,  B65H2801/15

Abstract: In some examples, an accessory usable with roll media and an image forming system having an output member, comprises a leader member to attach to the output member of the image forming system, and a clip attached to the leader member, the clip to removably attach the leader member to the roll media in an installed state. The clip includes a first section to contact a first surface of the roll media, a second section to contact a second surface of the roll media, and a magnetic unit mounted on a surface of the first section, a magnetic field of the magnetic unit to attract the first and second sections toward one another to grip the roll media.

公开(公告)号：US09967406B2

公开(公告)日：2018-05-08

申请号：US14989512

申请日：2016-01-06

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

Inventor： Luis Garcia Garcia ,  M. Isabel Borrell Bayona ,  Angel Martinez Barambio ,  Sergio Puigardeu Aramendia

IPC: H04N1/46 ,  H04N1/00 ,  H04N1/60 ,  G06K15/10

CPC classification number: H04N1/00087 ,  G06K15/102 ,  H04N1/00023 ,  H04N1/00034 ,  H04N1/6044

Abstract: According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a color sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the color sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.

公开(公告)号：US20170217710A1

公开(公告)日：2017-08-03

申请号：US15490125

申请日：2017-04-18

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

Inventor： Ling-Li Yuan ,  Jing Hu ,  Yi-Wei Deng ,  Angel Martinez Barambio

IPC: B65H20/16 ,  B41J15/04

CPC classification number: B65H20/16 ,  B41J11/001 ,  B41J15/04 ,  B65H2301/41427 ,  B65H2301/41428 ,  B65H2301/44332 ,  B65H2801/15

Abstract: In some examples, an accessory usable with roll media and an image forming system having an output member, comprises a leader member to attach to the output member of the image forming system, and a clip attached to the leader member, the clip to removably attach the leader member to the roll media in an installed state. The clip includes a first section to contact a first surface of the roll media, a second section to contact a second surface of the roll media, and a magnetic unit mounted on a surface of the first section, a magnetic field of the magnetic unit to attract the first and second sections toward one another to grip the roll media.

公开(公告)号：US20160344895A1

公开(公告)日：2016-11-24

申请号：US15028891

申请日：2013-10-15

Applicant: Sergio PUIGARDEU ARAMENDIA ,  Angel MARTINEZ BARAMBIO ,  Luis GARCIA GARCIA ,  M.Isabel BORRELL BAYONA ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Sergio Puigardeu Aramendia ,  Angel Martinez Barambio ,  Luis Garcia ,  M.Isabel Borrell Bayona

IPC: H04N1/405

CPC classification number: H04N1/4052 ,  G06K15/1876 ,  G06K15/1881

Abstract: Image processing transforms input multi-level image data into output image data having a smaller number of levels (the input and output image data represents images formed of cells). The image processing distributes quantization error of a target cell of the image to neighbour cells in proportions determined by a set of weights. The distribution excludes neighbour cells whose data level is less than a threshold value from receiving distributed quantization error, or allows just a fraction of the quantization error to be distributed to such neighbour cells.

Abstract translation: 图像处理将输入的多级图像数据变换为具有较小级数的输出图像数据（输入和输出图像数据表示由单元形成的图像）​​。 图像处理以由一组权重确定的比例将图像的目标小区的量化误差分配给相邻小区。 该分布从接收分布式量化误差中排除其数据级别小于阈值的相邻小区，或者允许将仅一部分量化误差分配给这样的相邻小区。