Information retrieval system
    1.
    发明授权
    Information retrieval system 失效
    信息检索系统

    公开(公告)号:US5400436A

    公开(公告)日:1995-03-21

    申请号:US813159

    申请日:1991-12-23

    摘要: An information retrieval system retrieves stored information on the basis of incomplete or noisy retrieval key information within a realistic processing time. The information to be recalled is stored in neural network associative memory. Genetic algorithms are adopted to avoid a thorough retrieval of data in a huge breadth and depth of high-order space which must otherwise be searched due to ambiguity of retrieval key information. The information containing the given retrieval key is effectively sought. A processor employs a neural network. A memory is correctly recalled from partial inputs or inputs in which noise is extremely pronounced by repeating a sum-of-product operation of a firing pattern within a synapse coupling matrix and also threshold value processing.

    摘要翻译: 信息检索系统在现实的处理时间内基于不完整或有噪声的检索关键信息来检索存储的信息。 要召回的信息存储在神经网络关联存储器中。 采用遗传算法避免在高阶空间的巨大广度和深度上彻底检索数据,否则由于检索关键信息的模糊性而必须进行搜索。 包含给定检索关键字的信息被有效地寻求。 处理器采用神经网络。 通过重复突触耦合矩阵内的触发模式的积和积和操作以及阈值处理,从部分输入或输入中正确地调用存储器,其中噪声非常显着。

    Optical switching apparatus
    3.
    发明授权
    Optical switching apparatus 失效
    光开关装置

    公开(公告)号:US5539668A

    公开(公告)日:1996-07-23

    申请号:US218374

    申请日:1994-03-28

    摘要: A light transmission circuit 20 is biased to one optical bistable region of its multistable characteristic by a bias light from a light source 29. The bias light is superimposed by plural control pulse lights, and the superimposed light is irradiated. If the light intensity of the bias light exceeds a predetermined turning point according to the light intensity of the control pulse light, the state of multiple quantum well layers 4 and 24 are changed. Then, the light transmission state of the light transmission circuit 20 changes. Hereby, after the control pulse light disappeared, the bias light is detected by a light-receiving device 30 in a different transmission state from the prior state. And, the transmission state returns to the original state by selecting suitable light intensities of the control pulse lights to be superimposed. Therefore the light transmission circuit 20 can be switched reversibly.

    摘要翻译: 光传输电路20通过来自光源29的偏置光偏置到其多稳特性的一个光学双稳态区域。偏置光由多个控制脉冲光叠加,并且叠加的光被照射。 如果偏置光的光强度根据控制脉冲光的光强度超过预定的转折点,则多个量子阱层4和24的状态发生变化。 然后,光传输电路20的透光状态发生变化。 因此,在控制脉冲光消失之后,偏离光由与先前状态不同的传输状态的光接收装置30检测。 并且,通过选择要叠加的控制脉冲光的合适的光强度,透射状态返回到原始状态。 因此,光传输电路20可以可逆地切换。

    Intermittently rotating driving devices
    4.
    发明授权
    Intermittently rotating driving devices 失效
    非常有效的旋转驱动装置

    公开(公告)号:US3977263A

    公开(公告)日:1976-08-31

    申请号:US592266

    申请日:1975-07-01

    申请人: Shigetoshi Nara

    发明人: Shigetoshi Nara

    IPC分类号: F16H27/02

    摘要: The driving device comprises a cam disc rotatably supported by a cylindrical base and provided with equally spaced radial cam grooves of an add number, a slidable shaft extending through the cylindrical base in the diametrical direction thereof, and a pin secured to the slidable shaft for cooperating with the cam groove is shaped to lock the pin, and the marginal line between two sides of adjacent cam grooves are displaced from diametrical lines passing through the centers of respective outer ends of the cam grooves.