Method and device for preventing piracy of video material from theater screens
    2.
    发明授权
    Method and device for preventing piracy of video material from theater screens 失效
    用于防止视频素材从剧院屏幕盗版的方法和装置

    公开(公告)号:US06529600B1

    公开(公告)日:2003-03-04

    申请号:US09104900

    申请日:1998-06-25

    IPC分类号: H04N7167

    CPC分类号: H04N5/74

    摘要: A method and device for preventing video tape piracy of video material shown by an electronic projector by varying frequently the frame rate, line rate or pixel rate of the projector. In a preferred embodiment the frame rate is varied in accordance with a cryptographically secure algorithm. In another embodiment the frame rate is varied in accordance with the content of the scene in the film.

    摘要翻译: 一种用于通过频繁地改变投影仪的帧速率,线速率或像素速率来防止电子投影仪所示的视频材料的视频磁带盗版的方法和装置。 在优选实施例中,帧速率根据加密安全算法而变化。 在另一个实施例中,帧速率根据电影中场景的内容而变化。

    Method and apparatus for lamp control
    3.
    发明授权
    Method and apparatus for lamp control 失效
    灯控制的方法和装置

    公开(公告)号:US06215252B1

    公开(公告)日:2001-04-10

    申请号:US09222398

    申请日:1998-12-29

    IPC分类号: H05B3700

    摘要: A method for operating a lamp which includes the steps of providing an electric lamp having a pair of electrodes and an arc gap therebetween, providing a power supply for applying a voltage and current to the electric lamp, and providing a controller for sensing lamp parameters and configured to control a signal to be applied by the power supply to the electric lamp. The method further includes sensing the parameters of lamp operation. The sensed parameters are compared with desired lamp parameters. The controller commands the power supply to add a current pulse to a specific portion of the lamp current.

    摘要翻译: 一种操作灯的方法,包括以下步骤:提供具有一对电极和其间的电弧间隙的电灯,提供用于向电灯施加电压和电流的电源,以及提供用于感测灯参数的控制器,以及 被配置为控制由电源施加到电灯的信号。 该方法还包括感测灯操作的参数。 将感测的参数与期望的灯参数进行比较。 控制器命令电源将电流脉冲添加到灯电流的特定部分。

    Two lamp, single light valve projection system
    4.
    发明授权
    Two lamp, single light valve projection system 失效
    两灯,单光阀投影系统

    公开(公告)号:US6147720A

    公开(公告)日:2000-11-14

    申请号:US579655

    申请日:1995-12-27

    CPC分类号: H04N9/3114 H04N9/3164

    摘要: A projection system includes first and second light sources which are disposed at an angle with respect to each other and are activated during respective different phases of an illumination cycle to illuminate a spot on different sides of a segmented rotary filter wheel. The filter wheel is alternately used to transmit light from one of the light sources, and to reflect light from the other light source, to a light valve, the output of which is projected onto a screen. The wheel segments may be alternately clear and mirrored or may alternately transmit and reflect colors to produce color sequential illumination of the light valve. In addition to filter wheels producing sequences of red, blue, green illumination, including the possibility of splitting a color phase into non-adjacent smaller phases to reduce color artifacts, a simple filter wheel which in two rotations produces a sequence of red, blue, green, cyan, magenta, yellow color illumination, resulting in an expanded color gamut, is also disclosed. Blanking intervals during which both lamps are turned off span each passage of a segment boundary through the spot.

    摘要翻译: 投影系统包括第一和第二光源,第一和第二光源相对于彼此以一定角度设置,并且在照明周期的各个不同阶段被激活,以照亮分段的旋转滤光轮的不同侧上的光点。 滤光轮交替地用于从一个光源透射光并将来自另一个光源的光反射到光阀,其输出投影到屏幕上。 轮段可以交替地清除和镜像,或者可以交替地透射和反射颜色以产生光阀的颜色顺序照明。 除了产生红色,蓝色,绿色照明序列的滤光轮之外,还包括将色相分解成不相邻的较小相以减少颜色伪影的可能性,在两次旋转中的简单的滤光轮产生红,蓝, 绿色,青色,品红色,黄色照明,导致色域扩大。 两个灯关闭期间的消隐间隔跨越通过斑点的段边界的每个通道。

    Color correction system for projection video system utilizing multiple
light sources
    5.
    发明授权
    Color correction system for projection video system utilizing multiple light sources 失效
    使用多个光源的投影视频系统的色彩校正系统

    公开(公告)号:US5428408A

    公开(公告)日:1995-06-27

    申请号:US249419

    申请日:1994-05-26

    IPC分类号: G03B21/00 G09G3/34 H04N9/31

    摘要: A color correction system for a video projection system utilizing a single light valve for modulating light impinging thereon with a video signal and three projection lamps, one for each of the primary colors, which are activated sequentially. Positioned in the light path between two of the lamps and the light valve are occluders which block and unblock the light output from their associated lamp. The lamps which have the occluders are operated such that each lamp may be driven with a series of non-occluded pulses and occluded pulses. The occluded pulses occur when the occluder blocks the light output from the lamp. The more a desired reduction in light output in one of the colors is required, the non-occluded pulses are reduced and the corresponding occluded pulses are increased. This permits adjustment of the colorimetry of the system without adversely affecting the electrical properties of the lamp. As such, the electrical power input to each of the lamps remains within operational parameters but the light output of a particular color as seen by the light valve, and thus the viewer, may be reduced.

    摘要翻译: 一种用于视频投影系统的颜色校正系统,其利用单个光阀来调制用视频信号入射的光和三个投影灯,每个投影灯依次被激活,每个基色。 位于两个灯和光阀之间的光路中的是阻塞和解除其相关灯的输出的遮光器。 具有闭塞器的灯被操作,使得每个灯可以被一系列非阻塞脉冲和闭塞脉冲驱动。 当封堵器阻挡来自灯的光输出时,发生闭塞的脉冲。 需要在一种颜色中的光输出的期望减少越多,非遮挡脉冲减少并且相应的遮挡脉冲增加。 这允许调节系统的比色法而不会不利地影响灯的电性能。 因此,输入到每个灯的电功率保持在操作参数内,但可以减少由光阀和因此观察者所看到的特定颜色的光输出。

    Method of and device for generating an image having a desired brightness
    6.
    再颁专利
    Method of and device for generating an image having a desired brightness 有权
    用于产生具有期望亮度的图像的方法和装置

    公开(公告)号:USRE42428E1

    公开(公告)日:2011-06-07

    申请号:US11818539

    申请日:2007-06-14

    IPC分类号: G03B21/14 G03B21/20

    摘要: The present invention relates to a method of generating an image having a desired brightness, which image is generated by means of a device provided with at least one light source, at least one electro-optical light modulation panel and at least one light-control device. The light from the light source is converted into an image having a desired brightness via at least the electro-optical light modulation panel and the light-control device. The image to be projected is analyzed in a regulator, whereafter the electro-optical light modulation panel and the light-control device are driven, while a too bright image is generated by means of the electro-optical light modulation panel, which image is converted by means of the light-control device into an image having a desired brightness and a desired contrast.

    摘要翻译: 本发明涉及一种产生具有期望亮度的图像的方法,该图像是通过设置有至少一个光源的装置,至少一个电光调制面板和至少一个光控制装置 。 来自光源的光通过至少电光调制面板和光控制装置被转换成具有期望亮度的图像。 在调节器中分析要投影的图像,然后驱动电光调制面板和光控制装置,同时通过电光调制面板产生太亮的图像,该图像被转换 通过光控制装置转换成具有期望亮度和期望对比度的图像。

    METHOD AND SYSTEM FOR CHARACTERIZING AND VISUALIZING ELECTROMAGNETIC TRACKING ERRORS
    8.
    发明申请
    METHOD AND SYSTEM FOR CHARACTERIZING AND VISUALIZING ELECTROMAGNETIC TRACKING ERRORS 有权
    用于表征和可视化电磁跟踪误差的方法和系统

    公开(公告)号:US20120323111A1

    公开(公告)日:2012-12-20

    申请号:US13582062

    申请日:2011-02-21

    IPC分类号: A61B5/055

    摘要: A calibration/surgical tool (90, 160) includes an electromagnetic sensor array (30) of two or more electromagnetic sensors in a known geometrical configuration. Electromagnetic tracking errors are characterized by a mapping of pre-operative absolute and relative errors based on a movement of a calibrated calibration/surgical tool (90, 160) through a pre-operative electromagnetic field. Using statistical mapping, a desired absolute error field (46) is measured either in the clinic as the part of daily quality control checks, or before the patient comes in or in vivo. A resulting error field (46) may be displayed to the physician to provide clear visual feedback about measurement confidence or reliability of localization estimates of the absolute errors in electromagnetic tracking.

    摘要翻译: 校准/外科手术工具(90,160)包括具有已知几何构型的两个或多个电磁传感器的电磁传感器阵列(30)。 电磁跟踪误差的特征在于基于经校准的校准/外科手术工具(90,160)通过术前电磁场的运动的术前绝对和相对误差的映射。 使用统计学绘图,在临床上测量期望的绝对误差场(46)作为日常质量控制检查的一部分,或患者进入或体内之前。 可以向医师显示产生的误差字段(46),以提供关于电磁跟踪中的绝对误差的定位估计的测量置信度或可靠性的清晰的视觉反馈。

    METHOD AND SYSTEM FOR POSITION DETERMINATION
    9.
    发明申请
    METHOD AND SYSTEM FOR POSITION DETERMINATION 审中-公开
    用于位置确定的方法和系统

    公开(公告)号:US20120095330A1

    公开(公告)日:2012-04-19

    申请号:US13378130

    申请日:2010-05-17

    IPC分类号: A61B5/05

    摘要: A system for tracking a device can include a medical device for placement in a target anatomy of a patient, one or more sensors in proximity to and connected to the medical device, wherein positioning data associated with the medical device is generated by the one or more accelerometric sensors, and a processor for determining at least one of a position and an orientation of the medical device based on the positioning data.

    摘要翻译: 用于跟踪设备的系统可以包括用于放置在患者的目标解剖结构中的医疗设备,靠近并连接到医疗设备的一个或多个传感器,其中与医疗设备相关联的定位数据由一个或多个 加速度传感器和用于基于定位数据确定医疗装置的位置和取向中的至少一个的处理器。

    ANATOMICALLY AND FUNCTIONALLY ACCURATE SOFT TISSUE PHANTOMS AND METHOD FOR GENERATING SAME
    10.
    发明申请
    ANATOMICALLY AND FUNCTIONALLY ACCURATE SOFT TISSUE PHANTOMS AND METHOD FOR GENERATING SAME 审中-公开
    非正式和功能准确的软组织方法及其产生方法

    公开(公告)号:US20110291321A1

    公开(公告)日:2011-12-01

    申请号:US13207861

    申请日:2011-08-11

    IPC分类号: B29C39/10

    摘要: A method, system and apparatus for manufacturing anatomically and functionally accurate soft tissue phantoms with multimodality characteristics for imaging studies is disclosed. The organ/tissue phantom is constructed by filling a container containing an organ having inner vasculature therein with a molten elastomeric material; inserting a plurality of rods with bumps thereupon through the container and the organ; allowing the molten elastomeric material to harden and cure; removing the organ; replacing the organ with a plurality of elastomeric segments; and removing an elastomeric segment and replacing the void created thereupon with molten PVA to create a PVA segment; allowing the molten PVA segment to harden and cure; and repeating the creation of PVA segments until all the elastomeric segments have been removed, such that each successive molten PVA segment adheres to and fuses with the previous hardened PVA segment so as to form an approximately complete organ phantom cast. The organ/tissue phantom is completed by inserting the approximately complete organ phantom cast inserting upside-down into a fixture made from the bottom-most elastomeric segment, which contains molten PVA; and allowing the molten PVA to harden and cure.

    摘要翻译: 公开了一种用于制造具有用于成像研究的多模态特征的解剖学和功能上精确的软组织模体的方法,系统和装置。 器官/组织体模是通过将含有内部脉管系统的器官的容器用熔融的弹性材料填充而构成的; 在其上插入多个具有凸块的杆穿过容器和器官; 使熔融的弹性体材料硬化和固化; 去除器官 用多个弹性片段代替器官; 并除去弹性链段并用熔融的PVA代替其上产生的空隙以产生PVA链段; 使熔融的PVA段硬化和固化; 并重复创建PVA片段,直到所有的弹性体片段都被去除,使得每个连续的熔融PVA片段粘附并与先前硬化的PVA片段熔合,从而形成近似完整的器官体模。 通过将近似完整的器官体模插入插入由最下面的弹性片段制成的夹具中来完成器官/组织体模,所述夹具包含熔融的PVA; 并使熔融的PVA硬化和固化。