Watermark holograms
    2.
    发明授权
    Watermark holograms 有权
    水印全息图

    公开(公告)号:US06782115B2

    公开(公告)日:2004-08-24

    申请号:US10282908

    申请日:2002-10-28

    IPC分类号: G06K900

    摘要: Methods for integrating digital watermarks into holograms, watermarked hologram structures, and related applications. One method creates a watermark image, and then embeds the watermark image into a holographic structure. The holographic structure is created using computer generated holography to create a digital representation of the holographic structure. This digital representation is recorded on a physical substrate using optical techniques or microlithography. As an alterative, a watermark signal is embedded in a physical holographic structure by embedding the signal into an image that is optically merged with the holographic structure as it is optically recorded, or by embedding the signal into an image or physical model from which the holographic structure is formed. Another approach the creates a halftone watermarked image, and forms the halftone watermarked image in the hologram by creating hologram dots corresponding to the dots in the halftone watermarked image.

    摘要翻译: 将数字水印整合成全息图,水印全息图结构和相关应用的方法。 一种方法创建水印图像,然后将水印图像嵌入全息结构中。 使用计算机生成的全息术创建全息结构以创建全息结构的数字表示。 使用光学技术或微光刻将该数字表示记录在物理基板上。 作为替代,水印信号嵌入在物理全息结构中,通过将信号嵌入到与光学记录的全息结构光学合并的图像中,或者通过将信号嵌入图像或物理模型中,将全息图 结构形成。 另一种方法是产生半色调水印图像,并通过产生对应于半色调水印图像中的点的全息图点在全息图中形成半色调水印图像。

    Watermarking recursive hashes into frequency domain regions
    7.
    发明授权
    Watermarking recursive hashes into frequency domain regions 有权
    将水印递归到频域区域

    公开(公告)号:US06683966B1

    公开(公告)日:2004-01-27

    申请号:US09689293

    申请日:2000-10-11

    IPC分类号: G06K900

    摘要: A watermark embedder transforms a media signal from its perceptual domain to frequency domain regions and embeds a hash of data from one frequency domain region into a watermark in another frequency domain region. Alternatively, it encodes instances of the same message into the frequency domain regions. To detect alteration of the media signal, a watermark decoder transforms a suspect signal into the frequency domain regions, extracts the watermark message from a first frequency domain region and compares it with a reference derived from another frequency domain region. The reference signal is either a hash computed from the other frequency domain region of the watermarked signal, or another instance of the same message embedded into the other frequency domain region. The decoder can be used to detect alteration of the signal, such as alteration that occurs with reproduction (printing, scanning, copying, D/A-A/D conversion, etc.), compression, cropping or swapping of media signal content, etc.

    摘要翻译: 水印嵌入器将媒体信号从感知域转换到频域区域,并将来自一个频域区域的数据的散列嵌入另一个频域区域中的水印。 或者,它将相同消息的实例编码到频域区域中。 为了检测媒体信号的变化,水印解码器将可疑信号转换成频域区域,从第一频域区域提取水印消息,并将其与从另一个频域区域导出的参考进行比较。 参考信号是从水印信号的另一频域区域计算的散列或嵌入到另一频域区域中的相同消息的另一实例。 解码器可用于检测信号的变化,例如再现(打印,扫描,复制,D / A-A / D转换等),媒体信号内容的压缩,裁剪或交换等发生的变化。

    Pattern recognition of objects in image streams
    8.
    发明授权
    Pattern recognition of objects in image streams 有权
    图像流中对象的模式识别

    公开(公告)号:US07684623B2

    公开(公告)日:2010-03-23

    申请号:US11613123

    申请日:2006-12-19

    IPC分类号: G06K9/46 G06K9/48 G06K9/20

    摘要: The disclosure describes pattern recognition detectors and software used to detect patterns in image streams. The detectors operate on streams of image data, making them suitable for detecting certain types of patterns in documents and images passed between processes and devices. For instance, the streaming mode detectors operate in printer drivers on streams of image data being passed to a printer. Also, the streaming mode detectors operate in scanner drivers on streams of image data being passed from a scanner. The disclosure describes pattern detectors for shapes with complex features as well as objects comprised of many smaller shapes. The disclosure also describes novel raster line and edge tracing pattern techniques.

    摘要翻译: 本公开描述了用于检测图像流中的图案的图案识别检测器和软件。 检测器对图像数据流进行操作,使得它们适合于检测文件中的某些类型的图案和在过程和设备之间传递的图像。 例如,流式模式检测器在打印机驱动程序上操作图像数据流传送到打印机。 此外,流式模式检测器在扫描仪通过的图像数据流上操作扫描仪驱动器。 本公开描述了具有复杂特征的形状的图案检测器以及由许多较小形状组成的物体。 本公开还描述了新颖的光栅线和边缘跟踪图案技术。

    Integrated magnetic recording head assembly including an inductive write
subassembly and a magnetoresistive read subassembly
    10.
    发明授权
    Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly 失效
    集成磁记录头组件,其包括感应写入子组件和磁阻读取子组件

    公开(公告)号:US4504880A

    公开(公告)日:1985-03-12

    申请号:US407007

    申请日:1982-08-09

    CPC分类号: G11B5/3903 G11B5/3967

    摘要: An integrated read/write head assembly incorporates a thin film inductive write head subassembly comprising first and second pole pieces that define a write transducing gap, and a magnetoresistive read subassembly disposed in the write gap. The first write pole piece is extended so as to provide a planar conductive path from the terminal connections or studs to the magnetoresistive read subassembly, thereby forming a uniform surface for deposition of the magnetoresistive read subassembly.

    摘要翻译: 集成的读/写头组件包括薄膜感应写头子组件,其包括限定写换能间隙的第一和第二极片,以及设置在写间隙中的磁阻读取子组件。 第一写磁极片被延伸以提供从端子连接或螺柱到磁阻读取子组件的平面导电路径,由此形成用于沉积磁阻读取子组件的均匀表面。