利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.011 秒)

    Image data compression and decompression using minimize size matrix algorithm
    1.
    发明授权
    Image data compression and decompression using minimize size matrix algorithm 有权

    公开(公告)号：US10432971B2

    公开(公告)日：2019-10-01

    申请号：US15553503

    申请日：2016-02-26

    申请人： Sheffield Hallam University

    发明人： Mohammed Siddeq ,  Marcos Rodrigues

    IPC分类号： H04N19/18 ,  H04N19/625 ,  H04N19/48 ,  H04N19/126 ,  H04N19/182

    摘要： Computer implemented methods of compressing and decompressing image data are described. A discrete cosine (DCT) transformation is applied to each of a plurality of pixel blocks to generate a set of DCT coefficients for each pixel block comprising a DC DCT coefficient and a plurality of AC DCT coefficient. Each set of DCT coefficients is quantized. A DC array is formed from the set of quantized DC OCT coefficients and an AC matrix is formed from the set of quantized AC DCT coefficients. The AC matrix is compressed by eliminating blocks of data having only zero values and forming a reduced AC array from blocks including non-zero values. The reduced AC array is compressed using a key to form a coded AC array. The DC array and coded AC array are arithmetically coded to form arithmetically coded data which is included in a compressed image file. The decompression method is essentially the reverse process.

    IMAGE DATA COMPRESSION AND DECOMPRESSION USING MINIMIZE SIZE MATRIX ALGORITHM
    5.
    发明申请
    IMAGE DATA COMPRESSION AND DECOMPRESSION USING MINIMIZE SIZE MATRIX ALGORITHM 审中-公开

    公开(公告)号：US20180242020A1

    公开(公告)日：2018-08-23

    申请号：US15553503

    申请日：2016-02-26

    申请人： Sheffield Hallam University

    发明人： Mohammed Siddeq ,  Marcos Rodrigues

    IPC分类号： H04N19/625 ,  H04N19/48 ,  H04N19/126 ,  H04N19/18 ,  H04N19/182

    CPC分类号： H04N19/625 ,  H04N19/126 ,  H04N19/18 ,  H04N19/182 ,  H04N19/48

    摘要： Computer implemented methods of compressing and decompressing image data are described. A discrete cosine (DCT) transformation is applied to each of a plurality of pixel blocks to generate a set of DCT coefficients for each pixel block comprising a DC DCT coefficient and a plurality of AC DCT coefficient. Each set of DCT coefficients is quantised. A DC array is formed from the set of quantised DC OCT coefficients and an AC matrix is formed from the set of quantised AC DCT coefficients. The AC matrix is compressed by eliminating blocks of data having only zero values and forming a reduced AC array from blocks including non-zero values. The reduced AC array is compressed using a key to form a coded AC array. The DC array and coded AC array are arithmetically coded to form arithmetically coded data which is included in a compressed image file. The decompression method is essentially the reverse process.

    ANTICORROSION SOL-GEL COATING FOR METAL SUBSTRATE
    7.
    发明申请
    ANTICORROSION SOL-GEL COATING FOR METAL SUBSTRATE 审中-公开
    金属基材用抗静电溶胶涂料

    公开(公告)号：US20150010751A1

    公开(公告)日：2015-01-08

    申请号：US14382062

    申请日：2013-02-28

    申请人： Sheffield Hallam University

    发明人： Heming Wang

    IPC分类号： C09D5/08 ,  B05D3/10 ,  C09D183/06 ,  B05D7/14

    CPC分类号： C09D5/086 ,  B05D3/108 ,  B05D7/14 ,  C09D5/08 ,  C09D183/04 ,  C09D183/06 ,  C23C18/122 ,  C23C18/1225 ,  C23C18/1241 ,  C23C18/1254 ,  C23C18/1295 ,  Y10T428/263 ,  Y10T428/31529 ,  Y10T428/31536 ,  Y10T428/31663 ,  C08L79/02

    摘要： Method and apparatus for protecting a metal substrate from corrosion. The method comprises generating an acid organic-inorganic hybrid sol-gel; providing a polyaniline solution; combining the sol-gel with the polyaniline solution; incorporating a polysiloxane within the organic-inorganic hybrid sol-gel, the polyaniline solution or the combined sol-gel and polyaniline solution; coating the substrate with the polysiloxane sol-gel polyaniline solution; and curing the coating at the substrate, such that the coating is chemically bonded to the substrate, the coating comprising a polysiloxane based network having a Si—O backbone.

    摘要翻译： 用于保护金属基材免受腐蚀的方法和装置。 该方法包括产生酸性有机 - 无机杂化溶胶 - 凝胶; 提供聚苯胺溶液; 将溶胶 - 凝胶与聚苯胺溶液组合; 在有机 - 无机杂化溶胶 - 凝胶，聚苯胺溶液或组合溶胶 - 凝胶和聚苯胺溶液中掺入聚硅氧烷; 用聚硅氧烷溶胶 - 凝胶聚苯胺溶液涂布基材; 以及固化所述基底上的涂层，使得所述涂层与所述基底化学结合，所述涂层包含具有Si-O主链的基于聚硅氧烷的网络。

    Programming emergent symmetries with saddle-splay elasticity
    9.
    发明授权
    Programming emergent symmetries with saddle-splay elasticity 有权

    公开(公告)号：US12038667B2

    公开(公告)日：2024-07-16

    申请号：US17435407

    申请日：2020-03-04

    申请人： THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ,  TRUSTEES OF TUFTS COLLEGE ,  SHEFFIELD HALLAM UNIVERSITY

    发明人： Shu Yang ,  Yu Xia ,  Timothy J. Atherton ,  Douglas J. Cleaver ,  Andrew A. Debenedictis ,  Dae Seok Kim

    IPC分类号： G02F1/31

    CPC分类号： G02F1/31

    摘要： Multi-state switchability is highly desirable in optoelectronic devices. For liquid crystal (LC) based devices, the stability of any configuration is achieved through a balance between imposed interactions and the LC's orientational elasticity. In most cases, the latter acts to resist deformation. By combining surface topography and chemical patterning, provided here are the effects of saddle-splay orientational elasticity, a property that, despite being intrinsic to all LCs, is routinely suppressed. Utilizing theory and continuum elastic calculations, provided here are example conditions for which, even using generic, achiral LC materials, spontaneously broken surface symmetries develop. Also provided are multi-stable devices in which a weak, but directional, applied field switches between spontaneously-polar surface state domains. The disclosed approach is useful in low-field and fast-switching optoelectronic devices, beyond those attainable by current technologies.

    Brassiere with inflatable bladder
    10.
    发明授权
    Brassiere with inflatable bladder 有权

    公开(公告)号：US10986881B2

    公开(公告)日：2021-04-27

    申请号：US16312646

    申请日：2017-06-20

    申请人： Sheffield Hallam University

    发明人： Andrew Lee Stanton ,  Alexander H. Reed ,  Heidi Probst

    IPC分类号： A41C3/10 ,  A41C3/00

    摘要： Disclosed is a brassiere having breast cups configured with inflatable bladders specifically positioned and configured to manipulate the breast tissue of a target breast into a lifted position whilst simultaneously displacing laterally sideways/outward and downward a contra-lateral breast. The brassiere is configured to lift the target breast away from the chest wall and to stabilise the breast so as to increase treatment accuracy and reduce radiation dosage to high risk organs such as the heart and lung. The brassiere according to the subject invention is advantageous to be worn by women for the treatment of either the left or right breast whilst providing modesty during treatment delivery.