Image or video display devices
    52.
    发明授权
    Image or video display devices 有权
    图像或视频显示设备

    公开(公告)号:US07545952B2

    公开(公告)日:2009-06-09

    申请号:US11877450

    申请日:2007-10-23

    IPC分类号: H04K1/00

    摘要: The present invention relates generally to image or video display devices. For example, there are many devices (e.g., cell phones, video games, calculators, positioning systems and personal computing devices) that include such display devices. One claim recites a device including: an image or video display including a first set of elements and a second set of elements, the first set of elements being varied relative to at least the second set of elements, the first set of elements being arranged to provide a plural-bit device identifier obtainable from optical scan data representing at least a portion of the image or video display, the first set of elements and the second set of elements being arranged so as to conceal the presence of the plural-bit device identifier from a human observer of the display. Of course, other claims and combinations are provided as well.

    摘要翻译: 本发明一般涉及图像或视频显示设备。 例如,包括这样的显示设备的许多设备(例如,蜂窝电话,视频游戏,计算器,定位系统和个人计算设备)。 一个权利要求描述了一种设备,包括:图像或视频显示器,其包括第一组元件和第二组元件,所述第一组元件相对于至少第二组元件而变化,所述第一组元件布置成 提供可从表示图像或视频显示器的至少一部分的光学扫描数据获得的多位设备标识符,第一组元件和第二组元件被布置为隐藏多位设备标识符的存在 从人的观察者的显示。 当然,也提供其他权利要求和组合。

    Methods and systems for read-aloud books
    54.
    发明授权
    Methods and systems for read-aloud books 有权
    大众书籍的方法和系统

    公开(公告)号:US07261612B1

    公开(公告)日:2007-08-28

    申请号:US09709255

    申请日:2000-11-08

    IPC分类号: A63H30/00 G09B19/00 G06K9/00

    CPC分类号: G09B5/06 A63H3/28 A63H2200/00

    摘要: The pages of a children's book are marked in a machine-readable manner (e.g., by imperceptible digital watermark technology). When such a page is shown to a camera-equipped computer device, the watermark is decoded, and the story text from that page is read aloud to a child. A number of variants are contemplated, including using book pages as entry points to corresponding videos; using books to link to corresponding interactive web sites or multi-player games; incorporating the camera in a plush toy; evoking different responses from the system by using the book to convey gestures to the camera; providing such functionality in cell phones, set top boxes, and Bluetooth-equipped devices; customizing read-aloud stories using words provided by the child or a parent; etc.

    摘要翻译: 儿童书的页面以机器可读的方式标记(例如,通过不可察觉的数字水印技术)。 当将这样的页面显示给配备有相机的计算机设备时,水印被解码,并且来自该页面的故事文本被朗读给小孩。 考虑了许多变型,包括使用书页作为相应视频的入口点; 使用书籍链接到相应的互动网站或多玩家游戏; 将相机并入毛绒玩具中; 通过使用本书将手势传达给相机,唤起系统的不同响应; 在手机,机顶盒和配备蓝牙的设备中提供这样的功能; 使用小孩或父母提供的单词自定义朗读故事; 等等

    Digital watermarking apparatus and methods
    55.
    发明授权
    Digital watermarking apparatus and methods 失效
    数字水印设备及方法

    公开(公告)号:US07164780B2

    公开(公告)日:2007-01-16

    申请号:US11060919

    申请日:2005-02-17

    IPC分类号: H04K1/00

    摘要: The present invention relates to various steganographic methods and apparatus. In one embodiment, a plurality of microlenses can provide a steganographic signal for a handheld device. The pattern corresponds to (or conveys) a device identifier. In another embodiment, a handheld computing device includes: a plurality of pixel elements; a set of microlenses; and electronic circuitry communicating with the set of microlenses. The set of microlenses are arranged to create a pattern, the pattern providing a plural-bit identifier. The electronic circuitry operates to change the unique identifier. Other embodiments are also provided.

    摘要翻译: 本发明涉及各种隐写方法和装置。 在一个实施例中,多个微透镜可以为手持设备提供隐写信号。 该模式对应于(或传送)设备标识符。 在另一实施例中,手持计算设备包括:多个像素元件; 一组微透镜; 以及与该组微透镜通信的电子电路。 布置该微透镜的集合以产生图案,该图案提供多位标识符。 电子电路用于改变唯一标识符。 还提供了其他实施例。

    Identification document including embedded data
    56.
    发明授权
    Identification document including embedded data 失效
    识别文件包括嵌入数据

    公开(公告)号:US07152786B2

    公开(公告)日:2006-12-26

    申请号:US10830975

    申请日:2004-04-22

    IPC分类号: G06K5/00 H04K1/00

    摘要: The present invention provides methods and systems to authenticate identification documents. In a first implementation, an identification document includes a photograph and a digital watermark. The digital watermark carries first facial recognition data corresponding to a face depicted in the photograph. Optical scan data representing the photograph is received, and a second facial recognition data is derived. The first facial recognition data is recovered from the digital watermark, and is compared with the second facial recognition data.

    摘要翻译: 本发明提供了鉴别身份证件的方法和系统。 在第一实施例中,识别文档包括照片和数字水印。 数字水印携带与照片中描绘的脸部对应的第一面部识别数据。 接收表示照片的光扫描数据,导出第二面部识别数据。 第一面部识别数据从数字水印中恢复,并与第二面部识别数据进行比较。

    Adjusting an electronic camera to acquire a watermarked image
    58.
    发明授权
    Adjusting an electronic camera to acquire a watermarked image 有权
    调整电子照相机以获取水印图像

    公开(公告)号:US06366680B1

    公开(公告)日:2002-04-02

    申请号:US09444770

    申请日:1999-11-22

    IPC分类号: G06K900

    摘要: The present invention provides a mechanism for automatically setting the exposure time and gain of an electronic camera so that the acquired image has improved characteristics for the detection of a digital watermark. With the present invention the exposure time and gain of an electronic camera are set by first directing the camera at a test target with the camera's controls set to a default set of values. The system then calculates a histogram of the luminance values of the pixels in the image. Next characteristic values from the histogram such as the peak value, the centroid value, the RMS value, the median value, etc. are calculated. One or more of the characteristic values of the histogram are then applied as an index or pointer to values of pre-established settings that are stored in a table. Values from the table are used to set the exposure time and/or gain of the camera. In some embodiments, the variance of the luminance histogram is also measured and used to index data from the table.

    摘要翻译: 本发明提供了一种用于自动设置电子照相机的曝光时间和增益的机构,使得所获取的图像具有用于检测数字水印的改进特性。 利用本发明,通过首先将照相机指向测试对象来设置电子照相机的曝光时间和增益,其中照相机的控制设置为默认值。 然后,系统计算图像中的像素的亮度值的直方图。 计算来自直方图的下一个特征值,例如峰值,质心值,RMS值,中值等。 然后将直方图的一个或多个特征值应用作为存储在表中的预先建立的设置的值的索引或指针。 表中的数值用于设置相机的曝光时间和/或增益。 在一些实施例中,还测量亮度直方图的方差,并用于从表中索引数据。

    Method and system for dynamically controlling a display refresh rate
    59.
    发明授权
    Method and system for dynamically controlling a display refresh rate 有权
    动态控制显示刷新率的方法和系统

    公开(公告)号:US08334857B1

    公开(公告)日:2012-12-18

    申请号:US11957375

    申请日:2007-12-14

    摘要: A method and system are implemented to dynamically control a display refresh rate. Specifically, one embodiment of the present invention sets forth a method, which comprises the steps of driving a display device at a first refresh rate over a period of time, measuring a number of first content frames with changes in content out of a plurality of content frames that are generated over the period of time for the display device, and driving the display device at a second refresh rate if the number of the first content frames meets a first condition associated with a first threshold reference, and optionally driving the display device at a third refresh rate if the number of first content frames meets a second condition associated with a second threshold reference.

    摘要翻译: 实现方法和系统来动态地控制显示刷新率。 具体地,本发明的一个实施例提出了一种方法,其包括以下步骤:在一段时间内以第一刷新率驱动显示设备,测量多个内容中的内容变化的第一内容帧的数量 如果所述第一内容帧的数量满足与第一阈值参考相关联的第一条件,则以所述显示设备的一段时间内生成的帧以及以第二刷新率驱动所述显示设备,以及可选地以 如果第一内容帧的数量满足与第二阈值参考相关联的第二条件,则第三刷新率。

    Method and system of measuring quantitative changes in display frame content for dynamically controlling a display refresh rate
    60.
    发明授权
    Method and system of measuring quantitative changes in display frame content for dynamically controlling a display refresh rate 有权
    测量显示帧内容的定量变化的动态控制显示刷新率的方法和系统

    公开(公告)号:US08120621B1

    公开(公告)日:2012-02-21

    申请号:US11957374

    申请日:2007-12-14

    IPC分类号: G09G5/00

    摘要: A method and system are implemented to measure quantitative changes in display frame content for dynamically controlling a display refresh rate. Specifically, one embodiment of the present invention sets forth a method, which includes the steps of composing a first display frame from a first set of rendered image surfaces, composing a second display frame from a second set of rendered image surfaces, dividing the first display frame and the second display frame into a same number of frame regions. Also, for each of the frame regions, the method also includes the steps of calculating a first set of numerical codes and a second set of numerical codes representative of the content associated with the frame region in the first and second display frame, respectively; and determining an amount of changes in content between the first display frame and the second display frame based on the results of comparing the first set of numerical codes against the second set of numerical code.

    摘要翻译: 实现方法和系统来测量显示帧内容的定量变化,以动态地控制显示刷新率。 具体地,本发明的一个实施例提出了一种方法,其包括以下步骤:从第一组渲染图像表面构成第一显示帧,从第二组渲染图像表面构成第二显示帧,将第一显示器 帧和第二显示帧分成相同数量的帧区域。 此外,对于每个帧区域,该方法还包括以下步骤:分别计算表示与第一和第二显示帧中的帧区域相关联的内容的第一组数字代码和第二组数字代码; 以及基于将第一组数字代码与第二组数字代码进行比较的结果,确定第一显示帧和第二显示帧之间的内容的变化量。