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14 条记录 (耗时 0.026 秒)

    Logarithmic light intensifier for use with photoreceptor-based implanted retinal prosthetics and those prosthetics
    11.
    发明授权
    Logarithmic light intensifier for use with photoreceptor-based implanted retinal prosthetics and those prosthetics 有权
    用于光感受器植入的视网膜假体和那些假肢的对数光增强器

    公开(公告)号：US06507758B1

    公开(公告)日：2003-01-14

    申请号：US09515383

    申请日：2000-02-29

    申请人： Robert J. Greenberg ,  Abraham N. Seidman ,  Joseph H. Schulman

    发明人： Robert J. Greenberg ,  Abraham N. Seidman ,  Joseph H. Schulman

    IPC分类号： A61N118

    CPC分类号： A61N1/36046 ,  A61F9/08

    摘要： This invention is for directly modulating a beam of photons onto the retinas of patients who have extreme vision impairment or blindness. Its purpose is to supply enough imaging energy to retinal prosthetics implanted in the eye which operate essentially by having light (external to the eye) activating photoreceptors, or photo-electrical material. The invention provides sufficient light amplification and does it logarithmically. While it has sufficient output light power, the output light level still remains at a safe level. Most preferred embodiments of this invention provide balanced biphasic stimulation with no net charge injection into the eye. Both optical and electronic magnification for the image, as for example, using an optical zoom lens, is incorporated. Otherwise, it would not be feasible to zoom in on items of particular interest or necessity. Without proper adjustment, improper threshold amplitudes would obtain, as well as uncomfortable maximum thresholds. Therefore, to adjust for these, a way of proper adjustment for the threshold amplitudes and maximum comfortable thresholds is provided. Furthermore, to the extent that individual stimulation sites in the retina give different color perceptions, upon stimulation, then colors of the viewed scene is correlated with specific stimulation sites to provide a certain amount of color vision.

    摘要翻译： 本发明用于将光束束直接调制到具有极端视力障碍或失明的患者的视网膜上。 其目的是为植入眼睛的视网膜假体提供足够的成像能量，其基本上通过使光（外部的眼睛）激活感光器或光电材料。 本发明提供足够的光放大，并且它是对数的。 虽然它具有足够的输出光功率，但输出光级仍然保持在一个安全的水平。 本发明最优选的实施方案提供平衡的双相刺激，而没有净电荷注入眼睛。 包括用于图像的光学和电子倍率，例如使用光学变焦透镜。 否则，放大特别感兴趣或必要的项目是不可行的。 没有适当的调整，不正确的阈值振幅将获得，以及不舒适的最大阈值。 因此，为了适应这些，提供了适当调整阈值振幅和最大舒适阈值的方法。 此外，在视网膜中的个别刺激部位产生不同的颜色感觉的情况下，在刺激时，所观看场景的颜色与特定刺激部位相关联，以提供一定量的色觉。

    Path cost computing neural network
    14.
    发明授权
    Path cost computing neural network 失效
    路径成本计算神经网络

    公开(公告)号：US5050096A

    公开(公告)日：1991-09-17

    申请号：US412696

    申请日：1989-09-26

    申请人： Abraham N. Seidman

    发明人： Abraham N. Seidman

    IPC分类号： G06N3/10 ,  G06Q10/04

    CPC分类号： G06N3/10 ,  G06Q10/047

    摘要： The operation of an electronic neural computer is described. This electronic neural computer solves for the optimal path in a space of "cost functions" which are represented as delays at the nodes of a grid (in two, three, four, or more dimensions). Time gating by delays lets the optimal solution thread the maze of the network first. The neural computer starts to compute all possible paths through the cost function field and shuts down after the first (optimal solution) emerges at the target node. The cost function delays are set from outside the neural computer architecture.

    摘要翻译： 描述电子神经计算机的操作。 这种电子神经计算机解决了在“成本函数”的空间中的最佳路径，其被表示为网格的节点（两个，三个，四个或更多个维度）的延迟。 通过延迟的时间门控使得最佳解决方案首先连接网络的迷宫。 神经计算机开始通过成本函数字段计算所有可能的路径，并在第一个（最优解）出现在目标节点之后关闭。 成本函数延迟是从神经计算机架构之外设置的。