会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明申请
    • Additive model for efficient representation of digital documents
    • 数字文件有效表示的附加模型
    • US20050041855A1
    • 2005-02-24
    • US10946846
    • 2004-09-22
    • Doron KletterDonald Curry
    • Doron KletterDonald Curry
    • H04N1/41G06T9/00G09G5/00G09G5/02G06K9/00G06K9/36
    • G06T9/001
    • Image representation is performed by dividing a source image into foreground, background and selector planes. The foreground plane is selected to contain mainly line type art or textual type information, the background plane mainly contains image data, and the selector plane identifies whether the image data is maintained in either a specific plane or a combination of planes. A color is selected, by averaging or selecting an appropriate value based on overflow or other criteria, to replace each color in the foreground plane. Error in portions of the foreground plane resulting from replacing foreground colors is fed into corresponding portions of the background plane. Each plane is then compressed using compression schemes appropriate for the type of data maintained in each plane (LZW for the foreground, and JPEG for the background and lossless fax LLITT, for example). Image reconstruction is performed by decompressing each of the foreground and background planes, and selecting pixels from each of the foreground plane and an additive image produced by combining image data from both the foreground, background, and selector planes. The selection is made based on the selector plane (selection mask), which identifies where image data is maintained for the reconstructed image (i.e., the upper plane or a combination of planes).
    • 通过将源图像划分为前景,背景和选择器平面来执行图像表示。 前景平面被选择为主要包括线型艺术或文字类型信息,背景平面主要包含图像数据,并且选择器平面识别图像数据是保持在特定平面还是平面的组合中。 通过平均或基于溢出或其他标准选择适当的值来选择颜色来替换前景平面中的每种颜色。 将由前景颜色替换得到的前景平面的部分中的错误馈送到背景平面的相应部分。 然后使用适合于维持在每个平面中的数据类型(例如,前景为LZW,背景为JPEG和无损传真LLITT)的压缩方案来压缩每个平面。 通过解压缩前景和背景平面中的每一个以及从前景平面中的每一个选择像素和通过组合来自前景,背景和选择面的图像数据产生的附加图像来执行图像重建。 基于选择器平面(选择掩模)进行选择,该选择器平面识别重建图像(即,上平面或平面组合)保持图像数据的位置。
    • 7. 发明授权
    • Thin film dielectric coating for laser resonator
    • 用于激光谐振器的薄膜电介质涂层
    • US5274661A
    • 1993-12-28
    • US987360
    • 1992-12-07
    • Marcus von GuntenDonald CurryJasbir RajasansiHakchu Lee
    • Marcus von GuntenDonald CurryJasbir RajasansiHakchu Lee
    • G02B1/10H01S3/034H01S3/08
    • H01S3/034G02B5/0833H01S3/02H01S3/08059
    • A thin film coating deposited on a substrate, the substrate having a first surface and a second surface opposite the first surface. The coating comprises a first dielectric layer, on the first surface of the substrate, having an index of refraction n.sub.1 and having an optical thickness of about d; a second dielectric layer, on the first dielectric layer, having an index of refraction n.sub.2 and having an optical thickness of about d; and a third dielectric layer, on the second dielectric layer, having an index of refraction of n.sub.1 and having an optical thickness of about 2d. The coaing is substantially reflective over at least two regions of wavelengths, each region separated by a region of high transmissiveness. In one aspect, the first dielectric layer is silicon dioxide, the second dielectric layer is titanium dioxide, and the third dielectric layer is silicon dioxide. In a further aspect, an optical element is provided, the optical element having a first series of thin film dielectric layers, the series including alternating layers of a first and second dielectric material, the first dielectric material having an index of refraction of n.sub.1 and the second dielectric material having an index of refraction of n.sub.2, each layer in the series having an optical thickness of at least d, at least one layer of the second dielectric material having an optical thickness of 2d; and a second series of thin film dielectric layers overlying the first series, the second series including alternating layers of the second dielectric material and a third dielectric material, the third dielectric material having an index or refraction of n.sub.3, each layer in the second series having an optical thickness of at least d, at least one layer of the second dielectric material having an optical thickness of 2d.
    • 沉积在基底上的薄膜涂层,所述基底具有第一表面和与第一表面相对的第二表面。 该涂层包括在基板的第一表面上具有折射率n1并且具有约d的光学厚度的第一介电层; 第二电介质层,在第一电介质层上,具有折射率n2并具有约d的光学厚度; 以及在第二电介质层上具有折射率n1并具有约2d光学厚度的第三电介质层。 梳齿在至少两个波长区域上基本上是反射的,每个区域被高透射率的区域隔开。 一方面,第一电介质层是二氧化硅,第二电介质层是二氧化钛,第三电介质层是二氧化硅。 在另一方面,提供了一种光学元件,所述光学元件具有第一系列的薄膜电介质层,所述系列包括第一和第二介电材料的交替层,所述第一介电材料具有n1的折射率和 具有折射率n2的第二电介质材料,所述系列中的每层具有至少d的光学厚度,所述第二介电材料的至少一层的光学厚度为2d; 以及覆盖所述第一系列的第二系列薄膜电介质层,所述第二系列包括所述第二介电材料和第三介电材料的交替层,所述第三介电材料具有n3的折射率或折射率,所述第二系列中的每一层具有 光学厚度为至少d,至少一层第二介电材料的光学厚度为2d。